:root{--primary: #0b1437;--primary-light: #1a2b5e;--primary-dark: #050a1c;--secondary: #3a86ff;--secondary-light: #5a9cff;--secondary-dark: #2970e3;--accent: #9b87f5;--accent-light: #c1b6e0;--accent-dark: #7c68d6;--accent-secondary: #4cc9f0;--accent-secondary-dark: #0C9D92;--text-light: #c9d6f1;--text-dark: #1b1b25;--background: #06081b;--background-darker: #030511;--background-alt: #0c1230;--border: rgba(255, 255, 255, .08);--shadow: 0 8px 30px rgba(0, 0, 0, .5);--radius: 16px;--admin-primary: #0C9D92;--admin-primary-dark: #087F76;--admin-secondary: #F9B233;--admin-gray-dark: #333333;--admin-gray-light: #666666;--transition-slow: .5s;--transition-medium: .3s;--transition-fast: .2s;--card-bg: rgba(18, 27, 59, .7);--card-border: rgba(255, 255, 255, .08);--card-shadow: 0 8px 32px rgba(0, 0, 0, .3);--glow-primary: 0 0 15px rgba(58, 134, 255, .3);--glow-accent: 0 0 20px rgba(155, 135, 245, .4);--glow-accent-strong: 0 0 30px rgba(155, 135, 245, .6);--glow-secondary: 0 0 15px rgba(76, 201, 240, .3)}body{margin:-20px 0 0;padding:0;box-sizing:border-box;font-family:Poppins,Arial,sans-serif;background-color:var(--background);color:var(--text-light);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::selection{background-color:#9b87f54d;color:#fff}.dark-texture-bg{background-color:var(--background);color:var(--text-light);position:relative}.with-pattern{background-image:radial-gradient(circle at 15% 25%,rgba(155,135,245,.04) 2px,transparent 2px),radial-gradient(circle at 75% 65%,rgba(155,135,245,.04) 2px,transparent 2px),radial-gradient(circle at 85% 15%,rgba(155,135,245,.04) 2px,transparent 2px),radial-gradient(circle at 35% 80%,rgba(155,135,245,.04) 2px,transparent 2px),radial-gradient(circle at 50% 50%,rgba(155,135,245,.04) 2px,transparent 2px);background-size:100px 100px}.with-pattern.intensity-light{background-image:radial-gradient(circle at 15% 25%,rgba(155,135,245,.02) 2px,transparent 2px),radial-gradient(circle at 75% 65%,rgba(155,135,245,.02) 2px,transparent 2px),radial-gradient(circle at 85% 15%,rgba(155,135,245,.02) 2px,transparent 2px),radial-gradient(circle at 35% 80%,rgba(155,135,245,.02) 2px,transparent 2px),radial-gradient(circle at 50% 50%,rgba(155,135,245,.02) 2px,transparent 2px)}.with-pattern.intensity-strong{background-image:radial-gradient(circle at 15% 25%,rgba(155,135,245,.08) 2px,transparent 2px),radial-gradient(circle at 75% 65%,rgba(155,135,245,.08) 2px,transparent 2px),radial-gradient(circle at 85% 15%,rgba(155,135,245,.08) 2px,transparent 2px),radial-gradient(circle at 35% 80%,rgba(155,135,245,.08) 2px,transparent 2px),radial-gradient(circle at 50% 50%,rgba(155,135,245,.08) 2px,transparent 2px)}.rounded-container{border-radius:var(--radius)}.with-border{border:1px solid var(--card-border)}.with-glow.glow-primary:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at center,rgba(58,134,255,.1) 0%,transparent 70%);z-index:-1;pointer-events:none}.with-glow.glow-accent:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at center,rgba(155,135,245,.1) 0%,transparent 70%);z-index:-1;pointer-events:none}.with-glow.glow-secondary:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at center,rgba(76,201,240,.1) 0%,transparent 70%);z-index:-1;pointer-events:none}.glow-effect.glow-primary{background:radial-gradient(ellipse at center,rgba(58,134,255,.15) 0%,transparent 70%)}.glow-effect.glow-accent{background:radial-gradient(ellipse at center,rgba(155,135,245,.15) 0%,transparent 70%)}.glow-effect.glow-secondary{background:radial-gradient(ellipse at center,rgba(76,201,240,.15) 0%,transparent 70%)}.tech-card{background:var(--card-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--card-border);border-radius:var(--radius);box-shadow:var(--card-shadow);transition:all .3s ease;position:relative;overflow:hidden}.tech-card:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:#ffffff1a;transform:skew(30deg);transition:all .5s ease}.tech-card:hover{box-shadow:var(--card-shadow),var(--glow-accent);transform:translateY(-5px);border-color:#9b87f533}.tech-card:hover:before{left:100%}.tech-btn{background:#9b87f51a;color:var(--accent);border:2px solid var(--accent);padding:12px 24px;border-radius:12px;font-weight:600;font-size:16px;cursor:pointer;transition:all var(--transition-medium) ease;position:relative;overflow:hidden;z-index:1}.tech-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(to right,transparent,rgba(155,135,245,.2),transparent);transition:all .5s ease;z-index:-1}.tech-btn:hover{background:var(--accent);color:#fff;box-shadow:var(--glow-accent);transform:translateY(-3px)}.tech-btn:hover:before{left:100%}.section-heading{font-size:2.5rem;color:#fff;margin-bottom:2.5rem;text-align:center;position:relative;padding-bottom:15px;letter-spacing:-.5px}.section-heading:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:80px;height:4px;background:linear-gradient(to right,var(--accent),var(--accent-secondary));border-radius:4px}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.fade-in{animation:fadeIn var(--transition-medium) ease-out forwards}.slide-in{animation:slideIn var(--transition-medium) ease-out forwards}.scale-in{animation:scaleIn var(--transition-medium) ease-out forwards}.bounce-in{animation:bounceIn var(--transition-slow) cubic-bezier(.175,.885,.32,1.275) forwards}@keyframes fade-in{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-in{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes scale-in{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes bounce-in{0%{opacity:0;transform:scale(.3)}50%{opacity:1;transform:scale(1.05)}70%{transform:scale(.9)}to{transform:scale(1)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}h1,h2,h3,h4,h5,h6{margin-top:0;font-weight:600;line-height:1.3}p{margin-top:0}a{color:var(--accent);text-decoration:none;transition:color var(--transition-fast) ease;position:relative}a:hover{color:var(--accent-light)}input,textarea,select{width:100%;padding:12px 15px;border:1px solid var(--border);border-radius:var(--radius);background-color:#121825b3;font-family:inherit;font-size:16px;transition:all var(--transition-fast) ease;color:var(--text-light)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #9b87f533}label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-light)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media (max-width: 992px){.section-heading{font-size:2rem}}@media (max-width: 768px){.section-heading{font-size:1.8rem}}@media (max-width: 576px){.section-heading{font-size:1.6rem}}.logo-watermark{position:absolute;opacity:.03;z-index:0;pointer-events:none;max-width:300px;top:50%;left:50%;transform:translate(-50%,-50%)}.status-badge{display:inline-block;padding:4px 12px;border-radius:50px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-badge.success{background:#0c9d9226;color:#0c9d92;border:1px solid rgba(12,157,146,.2)}.status-badge.warning{background:#f9b23326;color:var(--admin-secondary);border:1px solid rgba(249,178,51,.2)}.status-badge.danger{background:#f4433626;color:#f44336;border:1px solid rgba(244,67,54,.2)}.highlight-text{color:var(--accent);font-weight:600}.circuit-decoration{position:absolute;opacity:.15;pointer-events:none;z-index:0}.gradient-text{background:linear-gradient(to right,var(--accent),var(--accent-secondary));-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}.glow-element{box-shadow:var(--glow-accent);transition:box-shadow .3s ease}.glow-element:hover{box-shadow:var(--glow-accent-strong)}.main-content{padding-top:80px}.section-spacing{padding:100px 0}@media (max-width: 768px){.section-spacing{padding:60px 0}}:root{--primary: #0b1437;--primary-light: #1a2b5e;--primary-dark: #050a1c;--secondary: #3a86ff;--secondary-light: #5a9cff;--secondary-dark: #2970e3;--accent: #9b87f5;--accent-light: #c1b6e0;--accent-dark: #7c68d6;--accent-secondary: #4cc9f0;--accent-secondary-dark: #0C9D92;--text-light: #c9d6f1;--text-dark: #1b1b25;--background: #06081b;--background-darker: #030511;--background-alt: #0c1230;--border: rgba(255, 255, 255, .08);--card-bg: rgba(18, 27, 59, .7);--gradient-blue: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);--gradient-accent: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);--gradient-secondary: linear-gradient(135deg, var(--accent-secondary) 0%, var(--accent-secondary-dark) 100%);--shadow: 0 8px 30px rgba(0, 0, 0, .5);--radius: 16px;--glow-accent: 0 0 20px rgba(155, 135, 245, .4);--glow-accent-strong: 0 0 30px rgba(155, 135, 245, .6)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#121b3b33}::-webkit-scrollbar-thumb{background:#9b87f54d;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#9b87f580}.home-container{background-color:var(--background);color:#fff;position:relative;font-family:Poppins,sans-serif;overflow:hidden}.hero-section{position:relative;height:100vh;min-height:700px;max-height:1000px;display:flex;align-items:center;padding:140px 20px 80px;overflow:hidden;background:linear-gradient(to bottom,var(--background-darker),var(--background))}.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 20% 20%,rgba(155,135,245,.08) 0%,transparent 50%),radial-gradient(circle at 80% 60%,rgba(76,201,240,.05) 0%,transparent 60%);z-index:0}.hero-pattern{position:absolute;top:0;left:0;width:100%;height:100%;background-image:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%239b87f5' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");opacity:.6;z-index:0}.hero-grid{position:absolute;top:0;left:0;width:100%;height:100%;background-image:linear-gradient(to right,rgba(155,135,245,.03) 1px,transparent 1px),linear-gradient(to bottom,rgba(155,135,245,.03) 1px,transparent 1px);background-size:50px 50px;z-index:0}.tech-particle{position:absolute;background:#9b87f54d;border-radius:50%;opacity:.6;bottom:-10px;animation:floatUp linear forwards}@keyframes floatUp{0%{transform:translateY(0) rotate(0);opacity:.6}to{transform:translateY(-100vh) rotate(360deg);opacity:0}}.hero-content{display:flex;justify-content:space-between;align-items:center;max-width:1400px;width:100%;margin:0 auto;position:relative;z-index:2;gap:60px}.hero-text-container{flex:1;max-width:600px;position:relative}.hero-title{font-size:4.5rem;font-weight:800;margin-bottom:1.5rem;line-height:1.1;letter-spacing:-1.5px;position:relative}.text-gradient{background:linear-gradient(to right,var(--accent),var(--accent-secondary));-webkit-background-clip:text;background-clip:text;color:transparent;position:relative}.text-gradient:after{content:"";position:absolute;top:-10%;left:-5%;width:110%;height:120%;background:radial-gradient(ellipse at center,rgba(155,135,245,.2) 0%,transparent 70%);z-index:-1;opacity:.6;filter:blur(10px)}.hero-subtitle{font-size:1.3rem;color:var(--text-light);margin-bottom:2.5rem;line-height:1.6;position:relative}.hero-buttons{display:flex;gap:20px;margin-bottom:2.5rem}.primary-btn{background:var(--gradient-accent);color:#fff;border:none;padding:16px 32px;border-radius:12px;font-weight:700;font-size:1.1rem;cursor:pointer;transition:all .3s ease;box-shadow:0 10px 20px #9b87f54d;position:relative;overflow:hidden}.primary-btn:hover{transform:translateY(-4px);box-shadow:0 20px 30px #9b87f566}.btn-shine{position:absolute;top:-100%;left:-200%;width:200%;height:200%;background:linear-gradient(to right,#fff0,#ffffff4d,#fff0);transform:rotate(30deg);animation:btn-shine 4s infinite}@keyframes btn-shine{0%{top:-200%;left:-200%}to{top:200%;left:100%}}.secondary-btn{background:#ffffff0d;color:#fff;border:1px solid rgba(155,135,245,.3);padding:14px 30px;border-radius:12px;font-weight:600;font-size:1.1rem;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.secondary-btn:hover{background:#9b87f51a;transform:translateY(-4px);border-color:#9b87f580;box-shadow:var(--glow-accent)}.code-dots{display:flex;gap:8px;margin-top:2rem}.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px 2px #9b87f580;animation:pulseDot 2s infinite}.dot:nth-child(2){animation-delay:.5s;background:var(--accent-secondary);box-shadow:0 0 10px 2px #4cc9f080}.dot:nth-child(3){animation-delay:1s}@keyframes pulseDot{0%,to{transform:scale(1);opacity:.7}50%{transform:scale(1.5);opacity:1}}.hero-animation{flex:1;max-width:600px;position:relative;perspective:1000px}.floating-elements{position:absolute;width:100%;height:100%;top:0;left:0;z-index:10;pointer-events:none}.floating-element{position:absolute;display:flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:14px;background:#0a0f1eb3;border:1px solid rgba(155,135,245,.3);color:var(--accent);font-size:1.5rem;box-shadow:var(--glow-accent);animation:float 6s infinite ease-in-out}.floating-element:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:80%;height:80%;border-radius:10px;border:1px dashed rgba(155,135,245,.2);animation:pulse 3s infinite alternate}.element-1{top:-20px;left:10%;animation-delay:.5s}.element-2{top:20%;right:-30px;animation-delay:1.5s}.element-3{bottom:15%;left:-20px;animation-delay:1s}.element-4{bottom:-30px;right:30%;animation-delay:2s}.element-5{top:40%;left:-10px;animation-delay:0s}.element-6{top:65%;right:-20px;animation-delay:2.5s}@keyframes float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-15px) rotate(5deg)}}@keyframes pulse{0%{opacity:.3;transform:translate(-50%,-50%) scale(.7)}to{opacity:.6;transform:translate(-50%,-50%) scale(1.1)}}.code-terminal{background:#080a1ef2;border-radius:16px;box-shadow:0 25px 50px #00000080;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(155,135,245,.1);overflow:hidden;transform:perspective(1000px) rotateY(-5deg) rotateX(5deg);transition:all .5s ease;position:relative;z-index:5}.code-terminal:hover{transform:perspective(1000px) rotateY(-2deg) rotateX(2deg) translateY(-5px);box-shadow:0 30px 60px #0009,0 0 30px #9b87f533;border-color:#9b87f533}.terminal-header{padding:14px 20px;background:#0c1230e6;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.05)}.terminal-buttons{display:flex;gap:8px}.terminal-buttons span{width:12px;height:12px;border-radius:50%;transition:transform .2s ease}.terminal-buttons span:hover{transform:scale(1.2)}.terminal-buttons span:nth-child(1){background:#ff5f56}.terminal-buttons span:nth-child(2){background:#ffbd2e}.terminal-buttons span:nth-child(3){background:#27c93f}.terminal-title{color:var(--text-light);font-size:.9rem;font-family:Courier New,monospace}.terminal-body{padding:25px;font-family:Courier New,monospace;font-size:.9rem;color:#fff;line-height:1.6;position:relative;overflow:hidden}.token.keyword{color:#ff79c6}.token.string{color:#f1fa8c}.token.function-name{color:#50fa7b}.token.function{color:#8be9fd}.token.operator{color:#ff79c6}.token.punctuation{color:#f8f8f2}.token.boolean{color:#bd93f9}.typing-effect{color:#50fa7b;position:relative}.cursor{position:absolute;bottom:25px;right:33px;width:10px;height:18px;background-color:#50fa7b;animation:cursor-blink 1s step-end infinite}@keyframes cursor-blink{0%,to{opacity:1}50%{opacity:0}}.scroll-indicator{position:absolute;bottom:40px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;color:#fff9;font-size:14px;z-index:10;animation:fadeInOut 2s infinite alternate}.scroll-text{letter-spacing:1px}.scroll-arrow{animation:scrollBounce 2s infinite}.scroll-arrow svg{width:24px;height:24px;stroke:var(--accent)}@keyframes fadeInOut{0%{opacity:.5}to{opacity:1}}@keyframes scrollBounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-10px)}60%{transform:translateY(-5px)}}.stats-section{padding:40px 20px 100px;position:relative;z-index:5;margin-top:-80px}.connection-line{position:absolute;top:-100px;left:50%;transform:translate(-50%);width:2px;height:200px;background:linear-gradient(to bottom,transparent,rgba(155,135,245,.3),transparent);z-index:1}.connection-line:before{content:"";position:absolute;top:40%;left:50%;transform:translate(-50%,-50%);width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:var(--glow-accent);animation:pulseNode 3s infinite alternate}@keyframes pulseNode{0%{transform:translate(-50%,-50%) scale(.8);opacity:.8}to{transform:translate(-50%,-50%) scale(1.2);opacity:1}}.stats-inner{display:flex;justify-content:space-around;flex-wrap:wrap;gap:30px;max-width:1400px;margin:0 auto;background:linear-gradient(to bottom,var(--card-bg),rgba(12,18,48,.5));-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border-radius:var(--radius);padding:50px 30px;box-shadow:var(--shadow);border:1px solid var(--border);position:relative;z-index:2}.stat-item{flex:1;min-width:220px;text-align:center;padding:30px 20px;background:#0a0f1e80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius);border:1px solid rgba(155,135,245,.1);transition:all .4s ease;position:relative;overflow:hidden}.stat-item:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at center,rgba(155,135,245,.15) 0%,transparent 70%);opacity:0;transition:opacity .5s ease;z-index:-1}.stat-item:hover:before{opacity:1}.stat-icon{width:70px;height:70px;display:flex;align-items:center;justify-content:center;margin:0 auto 15px;background:#9b87f51a;border-radius:20px;font-size:1.8rem;position:relative;z-index:1;overflow:hidden;color:var(--accent);transition:all .3s ease;box-shadow:var(--glow-accent)}.icon-particles{position:absolute;width:100%;height:100%;pointer-events:none}.particle{position:absolute;width:4px;height:4px;background:var(--accent);border-radius:50%;opacity:0;top:50%;left:50%;transform:translate(-50%,-50%);animation:particleEmit 3s infinite}.particle:nth-child(2){animation-delay:1s}.particle:nth-child(3){animation-delay:2s}@keyframes particleEmit{0%{opacity:.8;transform:translate(-50%,-50%) scale(1)}to{opacity:0;transform:translate(-50%,-50%) scale(3)}}.stat-item h3{font-size:2.8rem;font-weight:800;margin-bottom:10px;background:var(--gradient-accent);-webkit-background-clip:text;background-clip:text;color:transparent;position:relative}.stat-item p{color:var(--text-light);font-size:1.1rem;font-weight:500}.courses-highlight-section{padding:140px 20px 120px;position:relative;background:linear-gradient(to bottom,var(--background),var(--background-alt));overflow:hidden}.circuit-decoration{position:absolute;opacity:.15;z-index:0;pointer-events:none}.circuit-left{top:20%;left:5%;width:150px;height:300px;background-image:url("data:image/svg+xml,%3Csvg width='150' height='300' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1'%3E%3Cpath d='M0,150 L100,150 M50,0 L50,300' /%3E%3Ccircle cx='50' cy='150' r='30' /%3E%3Ccircle cx='50' cy='150' r='20' /%3E%3Ccircle cx='100' cy='150' r='10' /%3E%3C/g%3E%3C/svg%3E");background-size:contain;background-repeat:no-repeat}.circuit-right{bottom:10%;right:5%;width:200px;height:200px;background-image:url("data:image/svg+xml,%3Csvg width='200' height='200' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1'%3E%3Cpath d='M0,100 L200,100 M100,0 L100,200' /%3E%3Crect x='50' y='50' width='100' height='100' rx='10' /%3E%3Crect x='75' y='75' width='50' height='50' rx='5' /%3E%3C/g%3E%3C/svg%3E");background-size:contain;background-repeat:no-repeat}.section-bg-accent{position:absolute;top:40%;left:60%;width:50%;height:60%;background:radial-gradient(circle,rgba(155,135,245,.1) 0%,transparent 70%);filter:blur(100px);z-index:0;border-radius:100%;opacity:.8;animation:pulseSlow 10s infinite alternate ease-in-out}@keyframes pulseSlow{0%{opacity:.5;transform:scale(1)}to{opacity:.8;transform:scale(1.1)}}.section-title{text-align:center;margin-bottom:70px;position:relative;z-index:1}.section-title h2{font-size:3rem;font-weight:700;margin-bottom:20px;color:#fff;letter-spacing:-.5px;position:relative;display:inline-block}.section-title h2:before{content:"";position:absolute;top:-20px;left:50%;transform:translate(-50%);width:40px;height:5px;background:var(--accent);border-radius:10px}.title-underline{width:80px;height:4px;background:var(--gradient-accent);margin:0 auto 25px;border-radius:2px;position:relative;overflow:hidden}.title-underline:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:#ffffff4d;animation:shimmer 3s infinite}@keyframes shimmer{0%{left:-100%}to{left:100%}}.section-title p{font-size:1.2rem;color:var(--text-light);max-width:700px;margin:0 auto;line-height:1.6}.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:40px;max-width:1400px;margin:0 auto;position:relative;z-index:1}.course-card{background:linear-gradient(145deg,var(--card-bg) 0%,rgba(10,15,30,.7) 100%);border-radius:var(--radius);padding:40px 30px;transition:all .5s cubic-bezier(.17,.67,.83,.67);border:1px solid var(--border);position:relative;overflow:hidden;box-shadow:0 15px 35px #00000040;display:flex;flex-direction:column;height:100%;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:1}.course-card:before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:var(--gradient-accent);opacity:0;transition:all .4s ease;z-index:1}.card-circuit{position:absolute;top:0;left:0;width:100%;height:100%;background-image:url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1' stroke-opacity='0.05'%3E%3Cpath d='M0,50 L30,50 M40,50 L60,30 M60,30 L80,30 M80,30 L100,50' /%3E%3Ccircle cx='30' cy='50' r='3' fill='%239b87f5' fill-opacity='0.1' /%3E%3Ccircle cx='40' cy='50' r='3' fill='%239b87f5' fill-opacity='0.1' /%3E%3Ccircle cx='60' cy='30' r='3' fill='%239b87f5' fill-opacity='0.1' /%3E%3Ccircle cx='80' cy='30' r='3' fill='%239b87f5' fill-opacity='0.1' /%3E%3C/g%3E%3C/svg%3E");opacity:.2;z-index:-1;pointer-events:none;transition:opacity .5s ease}.course-card:hover{border-color:#9b87f54d;box-shadow:0 25px 50px #0000004d,var(--glow-accent);background:linear-gradient(145deg,rgba(10,15,30,.9) 0%,var(--card-bg) 100%)}.course-card:hover .card-circuit{opacity:.4}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px}.course-icon{width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:#9b87f51a;border-radius:16px;font-size:1.5rem;color:var(--accent);transition:all .3s ease;box-shadow:var(--glow-accent);position:relative;z-index:1}.course-card:hover .course-icon{background:#9b87f533;transform:scale(1.1) rotate(5deg);box-shadow:var(--glow-accent-strong)}.course-label{background:var(--gradient-accent);color:#fff;padding:8px 16px;border-radius:30px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;box-shadow:0 5px 15px #9b87f54d}.course-card h3{font-size:1.6rem;margin-bottom:15px;color:#fff;font-weight:700}.course-card p{font-size:1rem;color:var(--text-light);margin-bottom:25px;line-height:1.6}.course-features{list-style:none;padding:0;margin:0 0 30px;flex-grow:1}.course-features li{color:#ffffffe6;position:relative;padding:10px 0 10px 28px;font-size:.95rem;transition:all .3s ease}.course-features li:before{content:"";position:absolute;left:0;top:14px;width:18px;height:18px;background:#9b87f51a;border-radius:50%;transition:all .3s ease}.course-features li:after{content:"✓";color:var(--accent);position:absolute;left:5px;top:9px;font-size:.8rem;font-weight:700;transition:all .3s ease}.course-card:hover .course-features li{transform:translate(5px)}.course-card:hover .course-features li:before{background:#9b87f533;box-shadow:var(--glow-accent)}.course-button{width:100%;padding:14px 20px;background:#9b87f51a;border:2px solid var(--accent);color:var(--accent);border-radius:12px;font-weight:600;cursor:pointer;transition:all .3s ease;margin-top:auto;font-size:1.05rem;position:relative;overflow:hidden;z-index:1}.course-button:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:all .3s ease;z-index:-1}.course-button:hover:after{left:100%}.features-section{padding:140px 20px 120px;background:linear-gradient(to bottom,var(--background-alt),var(--background));position:relative;overflow:hidden}.tech-mesh-bg{position:absolute;top:0;left:0;width:100%;height:100%;opacity:.05;z-index:0;background-image:url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1'%3E%3Cpath d='M0,0 L100,100 M100,0 L0,100 M0,50 L100,50 M50,0 L50,100' /%3E%3C/g%3E%3C/svg%3E");background-size:50px 50px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:40px;max-width:1400px;margin:0 auto;position:relative;z-index:1}.feature-card{display:flex;background:#0a0f1e80;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:35px 30px;transition:all .5s cubic-bezier(.17,.67,.83,.67);gap:25px;align-items:flex-start;border:1px solid rgba(155,135,245,.1);position:relative;overflow:hidden}.feature-circuit{position:absolute;top:0;right:0;width:100px;height:100px;background-image:url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1' stroke-opacity='0.1'%3E%3Cpath d='M50,0 L50,30 M50,30 L100,30' /%3E%3Ccircle cx='50' cy='30' r='3' fill='%239b87f5' fill-opacity='0.15' /%3E%3C/g%3E%3C/svg%3E");opacity:.5;z-index:0;pointer-events:none}.feature-card:hover{transform:translateY(-8px);border-color:#9b87f540;box-shadow:0 20px 40px #0003,var(--glow-accent)}.feature-icon{width:70px;height:70px;min-width:70px;display:flex;align-items:center;justify-content:center;background:#9b87f51a;border-radius:18px;font-size:1.8rem;color:var(--accent);transition:transform .3s ease;box-shadow:var(--glow-accent);position:relative;z-index:1}.icon-glow{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at center,rgba(155,135,245,.4) 0%,transparent 70%);opacity:0;transition:opacity .3s ease;z-index:-1}.feature-card:hover .icon-glow{opacity:1}.feature-content{position:relative;z-index:1}.feature-content h3{font-size:1.4rem;margin-bottom:12px;color:#fff;font-weight:700}.feature-content p{font-size:1rem;color:var(--text-light);line-height:1.6}.cta-section-new{padding:100px 20px;position:relative;overflow:hidden;margin:100px auto;max-width:1200px;border-radius:30px;z-index:1}.cta-section-new:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,#06081bcc,#0a0f1ee6);z-index:-2;border-radius:30px}.cta-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%239b87f5' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"),radial-gradient(circle at 70% 60%,rgba(155,135,245,.15) 0%,transparent 70%),radial-gradient(circle at 30% 30%,rgba(76,201,240,.1) 0%,transparent 70%);z-index:-1;border-radius:30px}.cta-circuit-left{position:absolute;bottom:0;left:0;width:150px;height:150px;background-image:url("data:image/svg+xml,%3Csvg width='150' height='150' viewBox='0 0 150 150' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-opacity='0.2' stroke-width='1'%3E%3Cpath d='M0,75 L150,75 M75,0 L75,150' /%3E%3Ccircle cx='75' cy='75' r='50' /%3E%3Ccircle cx='75' cy='75' r='25' /%3E%3C/g%3E%3C/svg%3E");opacity:.2;z-index:0;pointer-events:none}.cta-circuit-right{position:absolute;top:0;right:0;width:120px;height:120px;background-image:url("data:image/svg+xml,%3Csvg width='120' height='120' viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-opacity='0.2' stroke-width='1'%3E%3Crect x='20' y='20' width='80' height='80' rx='10' /%3E%3Crect x='40' y='40' width='40' height='40' rx='5' /%3E%3Cpath d='M0,60 L20,60 M100,60 L120,60' /%3E%3C/g%3E%3C/svg%3E");opacity:.2;z-index:0;pointer-events:none}.cta-content{position:relative;z-index:2;max-width:800px;margin:0 auto;text-align:center;padding:20px}.cta-section-new h2{font-size:3rem;font-weight:800;margin-bottom:25px;color:#fff;background:linear-gradient(to right,#fff,var(--accent-light));-webkit-background-clip:text;background-clip:text;color:transparent;position:relative;display:inline-block}.cta-section-new h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:100px;height:4px;background:var(--gradient-accent);border-radius:2px}.cta-section-new p{font-size:1.3rem;color:var(--text-light);margin-bottom:40px;line-height:1.6}.cta-button{background:var(--gradient-accent);color:#fff;border:none;padding:18px 45px;border-radius:14px;font-weight:700;font-size:1.1rem;cursor:pointer;transition:all .3s ease;box-shadow:0 15px 30px #9b87f54d;position:relative;overflow:hidden}.cta-button:hover{transform:translateY(-5px);box-shadow:0 25px 40px #9b87f580}.cta-shine{position:absolute;top:-100%;left:-200%;width:200%;height:200%;background:linear-gradient(to right,#fff0,#ffffff4d,#fff0);transform:rotate(30deg);animation:cta-shine 4s infinite}@keyframes cta-shine{0%{top:-200%;left:-200%}to{top:200%;left:100%}}.cta-particles{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1}.cta-particle{position:absolute;width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px 2px #9b87f580;opacity:.6;animation:floatParticle 8s infinite ease-in-out}.cta-particle.p1{top:20%;left:10%;animation-duration:7s;animation-delay:0s}.cta-particle.p2{top:70%;left:20%;animation-duration:9s;animation-delay:1s}.cta-particle.p3{top:30%;right:10%;animation-duration:8s;animation-delay:2s}.cta-particle.p4{bottom:20%;right:15%;animation-duration:10s;animation-delay:.5s}.cta-particle.p5{top:40%;left:50%;animation-duration:12s;animation-delay:1.5s}.cta-particle.p6{bottom:40%;left:40%;animation-duration:9s;animation-delay:3s}@keyframes floatParticle{0%,to{transform:translate(0)}50%{transform:translate(20px,-20px)}}.brands-section{padding:0 20px 100px}.brands-container{max-width:1400px;margin:0 auto}.brands-title{text-align:center;color:var(--text-light);font-size:1.2rem;margin-bottom:40px;opacity:.8;letter-spacing:1px}.brands-grid{display:flex;justify-content:center;flex-wrap:wrap;gap:80px;position:relative}.brands-grid:before{content:"";position:absolute;top:50%;left:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,rgba(155,135,245,.2),transparent)}.brand-logo{font-size:1.8rem;font-weight:700;color:#fff3;letter-spacing:1px;transition:all .3s ease;background:linear-gradient(to right,#fff6,#ffffff1a);-webkit-background-clip:text;background-clip:text;padding:15px 20px;border-radius:12px;position:relative}.brand-logo:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:6px;height:6px;background:var(--accent);border-radius:50%;box-shadow:var(--glow-accent);transition:all .3s ease;opacity:0}.brand-logo:hover{color:#ffffffb3;transform:translateY(-8px)}.brand-logo:hover:after{opacity:1;width:70%;height:2px;border-radius:2px;background:var(--gradient-accent)}@media (max-width: 1400px){.hero-title{font-size:4rem}.section-title h2,.cta-section-new h2{font-size:2.6rem}}@media (max-width: 1100px){.hero-title{font-size:3.5rem}.hero-content{padding:0}.features-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}}@media (max-width: 1024px){.hero-title{font-size:3.2rem}.hero-content{flex-direction:column;gap:60px;padding-top:80px}.hero-text-container{max-width:100%;text-align:center}.hero-buttons,.code-dots{justify-content:center}.stat-item{min-width:200px;padding:25px 15px}.cta-section-new h2{font-size:2.5rem}.cta-section-new{margin:60px auto;padding:80px 20px}}@media (max-width: 768px){.hero-title{font-size:2.8rem}.hero-section{padding:120px 20px 100px}.hero-subtitle{font-size:1.1rem}.stats-inner{margin-top:-40px;padding:40px 20px;flex-direction:column;max-width:90%}.stat-item{width:100%}.section-title h2{font-size:2.2rem}.features-grid{gap:30px}.feature-card{flex-direction:column;align-items:center;text-align:center;padding:30px 20px}.feature-icon{margin-bottom:20px}.cta-section-new h2{font-size:2rem}.courses-grid{grid-template-columns:1fr;max-width:90%}.course-card{max-width:450px;margin:0 auto}}@media (max-width: 480px){.hero-title{font-size:2.3rem}.hero-subtitle{font-size:1rem}.hero-buttons{flex-direction:column;gap:15px}.primary-btn,.secondary-btn{width:100%}.stat-item h3{font-size:2.2rem}.course-card{padding:30px 20px}.section-title h2{font-size:1.8rem}.cta-section-new{padding:60px 20px;margin:40px auto}.cta-section-new p{font-size:1.1rem}.cta-button{width:100%;padding:16px 30px}.brands-grid{gap:40px;flex-direction:column;align-items:center}}.testimonials{padding:100px 0;text-align:center;background-color:#fff;position:relative;overflow:hidden}.testimonials:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-5deg);width:70%;height:70%;background-image:url(/lovable-uploads/4006c787-79b5-446d-a87f-67bd8a297c27.png);background-repeat:no-repeat;background-position:center;background-size:contain;opacity:.02;z-index:0;pointer-events:none}.testimonials .container{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}.testimonials h2{font-size:36px;color:var(--primary);margin-bottom:50px;position:relative;display:inline-block}.testimonials h2:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translate(-50%);width:80px;height:3px;background:var(--secondary);border-radius:3px}.testimonials .testmonials-cards{display:flex;flex-wrap:wrap;justify-content:center;gap:40px}.testimonials .testmonials-cards .testimonial-card{background-color:#fff;box-shadow:0 10px 30px #00000014;padding:30px;border-radius:var(--radius);width:350px;text-align:left;display:flex;flex-direction:column;align-items:center;border-top:4px solid var(--primary);transition:all .3s ease}.testimonials .testmonials-cards .testimonial-card:hover{transform:translateY(-10px);box-shadow:0 20px 40px #0000001f}.testimonials .testmonials-cards .testimonial-card:nth-child(2n){border-top-color:var(--secondary)}@media (max-width: 768px){.testimonials .testmonials-cards .testimonial-card{width:90%;text-align:center}}.testimonials .testmonials-cards .testimonial-card .student-image{margin-bottom:15px}.testimonials .testmonials-cards .testimonial-card .student-image img{width:100px;height:100px;border-radius:50%;object-fit:cover;border:5px solid var(--background-alt);box-shadow:0 5px 15px #0000001a}.testimonials .testmonials-cards .testimonial-card .message{font-size:16px;color:var(--text-dark);margin-bottom:20px;line-height:1.7;position:relative;padding:0 10px}.testimonials .testmonials-cards .testimonial-card .message:before{content:"";font-size:60px;color:var(--primary-light);opacity:.2;position:absolute;top:-20px;left:-10px}.testimonials .testmonials-cards .testimonial-card .info{text-align:center;margin-top:auto;position:relative;padding-top:20px}.testimonials .testmonials-cards .testimonial-card .info:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:40px;height:2px;background:var(--secondary)}.testimonials .testmonials-cards .testimonial-card .name{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:5px}.testimonials .testmonials-cards .testimonial-card .position{font-size:14px;color:var(--text-light)}@media (max-width: 768px){.testimonials{padding:70px 0}.testimonials h2{font-size:30px}}.footer-wrapper{margin-top:60px;position:relative;overflow:hidden;background:linear-gradient(to bottom,var(--background),var(--background-darker))}footer{display:flex;flex-direction:column;padding:80px 0 20px;position:relative;overflow:hidden;color:#fff}.tech-decoration{position:absolute;opacity:.07;pointer-events:none;z-index:0}.tech-decoration.top-left{top:0;left:0;width:300px;height:300px;background-image:url("data:image/svg+xml,%3Csvg width='300' height='300' viewBox='0 0 300 300' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1'%3E%3Ccircle cx='150' cy='150' r='100' /%3E%3Ccircle cx='150' cy='150' r='80' /%3E%3Ccircle cx='150' cy='150' r='60' /%3E%3Cpath d='M0,150 L300,150 M150,0 L150,300' /%3E%3Cpath d='M75,75 L225,225 M75,225 L225,75' /%3E%3C/g%3E%3C/svg%3E");background-size:contain;animation:slowRotate 90s linear infinite}.tech-decoration.top-right{top:50px;right:10px;width:200px;height:200px;background-image:url("data:image/svg+xml,%3Csvg width='200' height='200' viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1'%3E%3Crect x='50' y='50' width='100' height='100' /%3E%3Crect x='70' y='70' width='60' height='60' /%3E%3Cpath d='M0,0 L200,200 M200,0 L0,200' /%3E%3Cpath d='M0,100 L200,100 M100,0 L100,200' /%3E%3C/g%3E%3C/svg%3E");background-size:contain;animation:slowRotate 120s linear infinite reverse}@keyframes slowRotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.circuit{position:absolute;z-index:0;opacity:.15;pointer-events:none}.circuit-1{top:120px;left:5%;width:150px;height:2px;transform:rotate(-15deg)}.circuit-2{bottom:80px;right:10%;width:200px;height:2px;transform:rotate(30deg)}.circuit-3{top:200px;right:20%;width:100px;height:2px;transform:rotate(-45deg)}.circuit-line{position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,#9b87f5,transparent);animation:pulseOpacity 4s infinite alternate}.circuit-node{position:absolute;top:-4px;left:30%;width:10px;height:10px;border-radius:50%;background:#9b87f5;box-shadow:0 0 10px 2px #9b87f580;animation:pulseGlow 3s infinite alternate}.circuit-branch{position:absolute;top:0;left:60%;width:2px;height:40px;background:linear-gradient(to bottom,#9b87f5,transparent)}@keyframes pulseOpacity{0%{opacity:.1}50%{opacity:.2}to{opacity:.3}}@keyframes pulseGlow{0%{box-shadow:0 0 5px 1px #9b87f54d}to{box-shadow:0 0 12px 3px #9b87f599}}.footer-glow{position:absolute;top:0;left:50%;transform:translate(-50%);width:80%;height:200px;background:radial-gradient(circle,rgba(155,135,245,.1) 0%,transparent 70%);border-radius:100%;z-index:0;opacity:.8}.footer-content{max-width:1200px;width:90%;margin:0 auto 60px;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:40px;position:relative;z-index:1}.footer-logo-section{display:flex;flex-direction:column;align-items:flex-start}.footer-logo{position:relative;margin-bottom:20px}.footer-logo img{height:60px;filter:brightness(1.2) drop-shadow(0 5px 15px rgba(155,135,245,.5));transition:all .3s ease;position:relative;z-index:1}.footer-logo:hover img{transform:translateY(-3px);filter:brightness(1.3) drop-shadow(0 8px 20px rgba(155,135,245,.7))}.logo-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:100px;height:60px;background:radial-gradient(ellipse,rgba(155,135,245,.3) 0%,transparent 70%);opacity:.6;z-index:0;animation:pulseGlow 3s infinite alternate}.footer-tagline{font-size:14px;line-height:1.6;margin:0 0 25px;color:#fffc;max-width:90%;position:relative}.contact-info{display:flex;flex-direction:column;gap:15px;margin-top:10px}.contact-item{display:flex;align-items:center;gap:12px;font-size:14px;color:#fffc;transition:all .3s ease;cursor:pointer}.contact-item:hover{color:#fff}.contact-icon{color:#9b87f5;font-size:18px;filter:drop-shadow(0 2px 5px rgba(155,135,245,.5))}.footer-links-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:40px}.footer-links{position:relative}.footer-links h4{font-size:18px;margin:0 0 20px;position:relative;display:inline-block;font-weight:600;color:#fff;padding-bottom:5px}.link-decoration{position:relative;height:2px;width:40px;margin-bottom:20px;background:linear-gradient(90deg,#9b87f5,transparent);border-radius:2px;overflow:hidden}.link-decoration:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:#ffffff4d;animation:moveLight 2s infinite}@keyframes moveLight{0%{left:-100%}to{left:100%}}.footer-links ul{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:12px;position:relative;padding-left:15px;transition:all .3s ease}.footer-links li:before{content:"›";position:absolute;left:0;color:#9b87f5;transition:all .3s ease}.footer-links a{color:#fffc;text-decoration:none;transition:color .3s ease;font-size:15px;position:relative;overflow:hidden;display:inline-block}.footer-links a:after{content:"";position:absolute;width:100%;height:1px;background:linear-gradient(90deg,#9b87f5,transparent);left:-100%;bottom:0;transition:left .3s ease}.footer-links a:hover{color:#9b87f5}.footer-links a:hover:after{left:0}.social-links{margin:20px auto 30px;position:relative;z-index:1;max-width:600px;width:90%}.social-title{text-align:center;font-size:16px;color:#ffffffb3;margin-bottom:20px;letter-spacing:1px;text-transform:uppercase;position:relative}.social-title:before,.social-title:after{content:"";position:absolute;top:50%;width:30%;height:1px;background:linear-gradient(90deg,transparent,rgba(155,135,245,.5),transparent)}.social-title:before{left:0}.social-title:after{right:0}.social-icons-container{display:flex;justify-content:center;gap:15px;flex-wrap:wrap}.social-links a{color:#fff;font-size:16px;text-decoration:none;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background-color:#ffffff0d;border:1px solid rgba(155,135,245,.3);position:relative;overflow:hidden;transition:all .3s ease}.social-links a:hover{color:#fff;background-color:#9b87f533;border-color:#9b87f599}.icon-glow{position:absolute;width:100%;height:100%;background:radial-gradient(circle at center,rgba(155,135,245,.3) 0%,transparent 70%);opacity:0;transition:opacity .3s ease}.social-links a:hover .icon-glow{opacity:1}.copyright{text-align:center;margin-top:10px;padding-top:20px;position:relative;z-index:1;font-size:14px;color:#ffffffb3}.copyright-bar{height:1px;width:80%;max-width:600px;margin:0 auto 20px;background:linear-gradient(90deg,transparent,rgba(155,135,245,.5),transparent);position:relative;overflow:hidden}.copyright-bar:after{content:"";position:absolute;width:20%;height:100%;background:#ffffff4d;animation:moveAcross 3s infinite linear}@keyframes moveAcross{0%{left:-20%}to{left:100%}}.tech-circle{position:absolute;left:50%;bottom:-50px;transform:translate(-50%);width:300px;height:300px;border-radius:50%;border:1px dashed rgba(155,135,245,.1);z-index:-1;animation:slowRotate 120s linear infinite}.tech-circle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:200px;height:200px;border-radius:50%;border:1px dashed rgba(155,135,245,.1)}@media (max-width: 768px){footer{padding:60px 0 20px}.footer-content{grid-template-columns:1fr;text-align:center}.footer-logo-section{align-items:center}.footer-tagline{max-width:100%}.contact-info{align-items:center}.footer-links-container{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.footer-links{text-align:center}.footer-links h4:after{left:50%;transform:translate(-50%)}.link-decoration{margin:0 auto 20px}.footer-links li{padding-left:0}.footer-links li:before{display:none}.social-links{margin:40px auto 30px}}@media (max-width: 480px){.social-icons-container{gap:10px}.social-links a{width:35px;height:35px;font-size:14px}.footer-glow{height:120px}}.social-media-section{display:flex;flex-direction:column;align-items:center;margin-top:20px}.social-icon-container{display:flex;gap:15px;margin-top:10px}:root{--accent-glow: rgba(155, 135, 245, .25);--accent-glow-strong: rgba(155, 135, 245, .4);--header-backdrop-blur: 12px}.header-wrapper{position:fixed;top:0;left:0;width:100%;z-index:1000;transition:all .35s cubic-bezier(.17,.67,.83,.67)}.header-container{z-index:100;transition:all .35s cubic-bezier(.17,.67,.83,.67);padding:0;box-shadow:0 2px 20px #0000004d;backdrop-filter:blur(var(--header-backdrop-blur));-webkit-backdrop-filter:blur(var(--header-backdrop-blur));background-color:#0b143799}.header-wrapper.scrolled .header-container{background-color:#0b1437d9;box-shadow:0 3px 25px #0006}header{position:relative;display:flex;justify-content:space-between;align-items:center;z-index:100;padding:12px 5%;transition:all .3s ease;max-width:1400px;margin:0 auto}.header-wrapper.scrolled header{padding:8px 5%}.logo-container{display:flex;align-items:center;z-index:1001;transition:all .35s cubic-bezier(.17,.67,.83,.67)}.logo{font-size:28px;font-weight:700;color:#c1b6e0;display:flex;align-items:center;z-index:1001;position:relative;transition:all .3s ease}.logo:after{content:"";position:absolute;bottom:-3px;left:0;width:0;height:2px;background:linear-gradient(90deg,#9b87f5,transparent);transition:width .4s ease}.logo:hover:after{width:100%}.logo img{height:38px;margin-right:12px;filter:drop-shadow(0 2px 8px rgba(155,135,245,.5));transition:all .3s ease}.logo:hover img{filter:drop-shadow(0 2px 12px rgba(155,135,245,.7));transform:translateY(-2px)}.logo-text{background:linear-gradient(90deg,#fff,#9b87f5);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700;letter-spacing:.5px}@media (max-width: 768px){.logo{font-size:22px}.logo img{height:32px}.logo-text{display:none}}.desktop-nav{display:flex;align-items:center}.nav-links{display:flex;align-items:center;gap:1.5rem}.nav-link-wrapper{position:relative;overflow:hidden;padding:4px 0}.nav-link-wrapper:after{content:"";position:absolute;bottom:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,#9b87f5,transparent);transform:translate(-100%);transition:transform .4s cubic-bezier(.17,.67,.83,.67)}.nav-link-wrapper:hover:after{transform:translate(0)}@media (max-width: 768px){.desktop-nav{display:none}}.desktop-nav .nav-links a{text-decoration:none;color:var(--text-light);font-weight:500;padding:8px 12px;font-size:16px;letter-spacing:.3px;border-radius:8px;transition:all .3s ease;position:relative}.desktop-nav .nav-links a:hover{color:#c1b6e0}.desktop-nav .nav-links a.active{color:#c1b6e0;font-weight:600}.desktop-nav .nav-links a.active:before{content:"";position:absolute;bottom:-2px;left:50%;transform:translate(-50%);width:6px;height:6px;background:#9b87f5;border-radius:50%;box-shadow:0 0 10px 2px #9b87f599}.login-btn,.account-link{background:linear-gradient(135deg,#9b87f54d,#9b87f51a);border:1px solid rgba(155,135,245,.3);border-radius:50px;padding:8px 18px;font-weight:500;transition:all .3s ease;position:relative;overflow:hidden}.login-btn:before,.account-link:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(155,135,245,.4) 0%,transparent 70%);opacity:0;transition:opacity .5s ease}.login-btn:hover,.account-link:hover{background:linear-gradient(135deg,#9b87f566,#9b87f533);transform:translateY(-2px)}.login-btn:hover:before,.account-link:hover:before{opacity:1}.account-icon{margin-right:5px}.mobile-menu-btn{display:none;background:#121825b3;border:1px solid rgba(155,135,245,.3);border-radius:8px;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;z-index:1001;transition:all .3s ease;box-shadow:0 2px 8px #0003;position:relative;right:20px;top:10px}.mobile-menu-btn:hover{background:#9b87f533;box-shadow:0 0 15px #9b87f54d}.menu-icon{transition:transform .3s ease;color:#c1b6e0}.mobile-menu-btn{display:none}@media (max-width: 768px){.mobile-menu-btn{display:flex}}.mobile-nav-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);width:100%;height:100vh;z-index:9000;display:flex;justify-content:flex-end}.mobile-nav-panel{position:fixed;top:0;right:0;height:100%;width:85%;max-width:380px;background:#0a0f1b;box-shadow:-3px 0 20px #0000004d;display:flex;flex-direction:column;z-index:9500;background-image:linear-gradient(to bottom,#9b87f512,#0000001a),url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%239b87f5' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");border-left:1px solid rgba(255,255,255,.08);overflow-y:auto}.mobile-nav-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid rgba(255,255,255,.08)}.mobile-logo{display:flex;align-items:center;gap:10px}.mobile-logo img{height:32px;filter:drop-shadow(0 2px 8px rgba(155,135,245,.5))}.mobile-logo span{font-weight:600;font-size:18px;background:linear-gradient(90deg,#fff,#9b87f5);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:.5px}.mobile-close-btn{display:flex;align-items:center;justify-content:center;background:#9b87f51a;border:1px solid rgba(155,135,245,.3);border-radius:50%;width:36px;height:36px;cursor:pointer;transition:all .3s ease;color:#c1b6e0}.mobile-close-btn:hover{background:#9b87f533;transform:rotate(90deg)}.mobile-nav-content{padding:24px 20px;flex-grow:1;display:flex;flex-direction:column;justify-content:space-between}.mobile-nav-links{display:flex;flex-direction:column;gap:16px}.mobile-nav-link{display:block;padding:14px 16px;background:#ffffff08;border-radius:10px;color:#f1f1f1;text-decoration:none;font-size:18px;font-weight:500;transition:all .3s ease;border:1px solid rgba(255,255,255,.05);position:relative;overflow:hidden}.mobile-nav-link:before{content:"";position:absolute;top:0;left:0;width:3px;height:100%;background:linear-gradient(to bottom,#9b87f5,transparent);opacity:0;transition:opacity .3s ease}.mobile-nav-link:hover{background:#9b87f51a;transform:translate(5px);border-color:#9b87f533}.mobile-nav-link:hover:before{opacity:1}.mobile-nav-link.active{background:#9b87f526;border:1px solid rgba(155,135,245,.3);color:#c1b6e0;box-shadow:0 4px 15px #9b87f533}.mobile-nav-link.active:before{opacity:1;width:5px}.login-btn-mobile{margin-top:10px;background:#9b87f533;border:1px solid rgba(155,135,245,.3);box-shadow:0 4px 15px #9b87f526}.mobile-nav-footer{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08)}.mobile-nav-social{text-align:center;position:relative}.circuit-decoration{position:absolute;top:-30px;left:0;right:0;height:40px;background-image:url("data:image/svg+xml,%3Csvg width='100' height='20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0,10 L30,10 M40,10 L50,0 M50,0 L70,0 M70,0 L80,10 M80,10 L100,10' stroke='rgba(155,135,245,0.3)' fill='none' stroke-width='1'/%3E%3Ccircle cx='30' cy='10' r='2' fill='rgba(155,135,245,0.5)'/%3E%3Ccircle cx='40' cy='10' r='2' fill='rgba(155,135,245,0.5)'/%3E%3Ccircle cx='50' cy='0' r='2' fill='rgba(155,135,245,0.5)'/%3E%3Ccircle cx='70' cy='0' r='2' fill='rgba(155,135,245,0.5)'/%3E%3Ccircle cx='80' cy='10' r='2' fill='rgba(155,135,245,0.5)'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:center;opacity:.7}.mobile-nav-social p{font-size:14px;color:#fff9;margin-bottom:15px}.social-icons{display:flex;justify-content:center;gap:15px}.social-icon{width:36px;height:36px;border-radius:50%;background:#9b87f51a;border:1px solid rgba(155,135,245,.3);display:inline-flex;transition:all .3s ease;cursor:pointer;position:relative}.social-icon:hover{background:#9b87f533;transform:translateY(-3px);box-shadow:0 5px 15px #9b87f533}.social-icon:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:50%;padding:2px;background:linear-gradient(45deg,rgba(155,135,245,.6),transparent);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .3s ease}.social-icon:hover:before{opacity:1}@media (max-height: 500px) and (max-width: 768px){.mobile-nav-panel{width:100%;max-width:100%}.mobile-nav-content{padding:15px}.mobile-nav-link{padding:10px}.mobile-nav-footer{display:none}}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--background-dark);position:relative;padding:40px 20px;overflow:hidden}.watermark-logo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);opacity:.03;width:60%;max-width:800px;z-index:0;pointer-events:none}.auth-container{display:flex;max-width:1000px;width:100%;min-height:600px;background:#ffffff0a;border-radius:16px;box-shadow:0 15px 30px #0003;position:relative;z-index:1;overflow:hidden;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1)}.auth-sidebar{flex:1;background:linear-gradient(135deg,#0c9d92cc,#085f76e6);position:relative;overflow:hidden;padding:40px;display:flex;flex-direction:column;justify-content:center;color:#fff;border-radius:16px 0 0 16px}.auth-sidebar-content{position:relative;z-index:2;max-width:400px}.auth-sidebar h2{font-size:32px;margin-bottom:20px;color:#fff;font-weight:700;position:relative}.auth-sidebar p{font-size:16px;line-height:1.6;margin-bottom:30px;opacity:.9}.features{list-style:none;padding:0;margin:0}.features li{display:flex;align-items:center;margin-bottom:16px;font-size:15px}.features .icon{width:24px;height:24px;border-radius:50%;background:#fff3;display:flex;align-items:center;justify-content:center;margin-right:12px}.circles{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden;z-index:1}.circle{position:absolute;border-radius:50%;background:linear-gradient(135deg,#ffffff1a,#ffffff0d)}.circle-1{width:300px;height:300px;bottom:-150px;right:-50px}.circle-2{width:200px;height:200px;top:-100px;left:-50px}.circle-3{width:150px;height:150px;top:50%;left:30%;transform:translateY(-50%)}.auth-form-container{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;position:relative}.auth-form{width:100%;max-width:400px}.auth-form-header{text-align:center;margin-bottom:30px}.logo{margin-bottom:20px}.logo img{max-height:60px}.auth-form-header h2{font-size:24px;color:var(--text-light);margin-bottom:10px}.auth-form-header p{color:var(--text-muted);font-size:14px;max-width:300px;margin:0 auto}.form-group{margin-bottom:24px}.form-group label{display:block;color:var(--text-light);margin-bottom:8px;font-size:14px;font-weight:500}.input-with-icon{position:relative}.input-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text-muted)}.auth-form input[type=email],.auth-form input[type=password],.auth-form input[type=text],.auth-form input[type=number]{width:100%;padding:12px 12px 12px 45px;border:1px solid rgba(255,255,255,.1);background:#ffffff0d;border-radius:8px;color:var(--text-light);font-size:16px;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.auth-form input::placeholder{color:#fff6}.auth-form input:focus{outline:none;border-color:var(--primary);background:#ffffff14;box-shadow:0 0 0 2px #0c9d9233}.forgot-password{text-align:right;margin-bottom:20px}.forgot-password a{color:#c1b6e0;text-decoration:none;font-size:14px}.common-btn{width:100%;padding:14px;background:linear-gradient(90deg,var(--primary) 0%,var(--secondary) 100%);border:none;border-radius:8px;color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden}.common-btn:after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;opacity:0;transform:rotate(30deg);background:#ffffff21;background:linear-gradient(to right,#ffffff21,#ffffff21 77%,#ffffff80 92%,#fff0)}.common-btn:hover:after{opacity:1;top:-30%;left:-30%;transition:all .5s ease}.common-btn:disabled{opacity:.7;cursor:not-allowed}.loading-spinner{display:inline-block;width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite}.auth-footer{margin-top:30px;text-align:center}.auth-footer p{color:var(--text-light);font-size:14px;margin-bottom:20px}.auth-footer a{color:#c1b6e0;text-decoration:none;font-weight:600}.social-login p{color:var(--text-muted);font-size:14px;position:relative;margin:20px 0}.social-buttons{display:flex;gap:10px}.social-buttons button{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:var(--text-light);font-size:14px;cursor:pointer;transition:all .3s ease}.social-buttons button:hover{background:#ffffff1a}.back-to-login{display:flex;align-items:center;justify-content:center;gap:8px;color:#c1b6e0;text-decoration:none;font-size:14px;font-weight:500}.captcha-container{margin:20px 0;display:flex;justify-content:center}.oauth-buttons{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.oauth-btn{width:100%;padding:12px;border:1px solid rgba(255,255,255,.1);border-radius:8px;background:#ffffff0d;color:var(--text-light);font-size:14px;font-weight:500;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:10px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.oauth-btn:hover{background:#ffffff1a;border-color:#fff3}.google-btn:hover{background:#db44371a;border-color:#db44374d}.github-btn:hover{background:#3333331a;border-color:#3333334d}.divider{text-align:center;margin:20px 0;position:relative}.divider:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:#ffffff1a}.divider span{background:var(--background-dark);padding:0 15px;color:var(--text-muted);font-size:12px;position:relative;z-index:1}@media (max-width: 768px){.auth-container{flex-direction:column;min-height:auto}.auth-sidebar{padding:30px;border-radius:16px 16px 0 0}.auth-form-container{padding:30px}.social-buttons{flex-direction:column}}.about{position:relative;padding:100px 0;min-height:70vh;background-color:var(--background)}.about .about-header{text-align:center;margin-bottom:60px}.about .about-container{max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}.about .about-content{background-color:var(--background-alt);border-radius:16px;padding:60px;box-shadow:var(--shadow);position:relative;overflow:hidden;border:1px solid var(--border)}@media (max-width: 768px){.about .about-content{padding:40px 20px}}.about .about-content h2{font-size:42px;color:var(--primary);margin-bottom:30px;position:relative;display:inline-block}.about .about-content h2:after{content:"";position:absolute;bottom:-15px;left:0;width:100px;height:4px;background:var(--secondary);border-radius:2px}@media (max-width: 768px){.about .about-content h2{font-size:32px}}.about .about-content p{font-size:18px;color:var(--text-light);line-height:1.8;margin-bottom:30px;max-width:800px;position:relative;z-index:1}@media (max-width: 768px){.about .about-content p{font-size:16px;line-height:1.6}}.about .mission-vision{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;margin-top:60px}.about .mission-vision .mission,.about .mission-vision .vision{background:var(--background-alt);padding:30px;border-radius:12px;box-shadow:var(--shadow);transition:transform .3s ease;border:1px solid var(--border)}.about .mission-vision .mission:hover,.about .mission-vision .vision:hover{transform:translateY(-10px)}.about .mission-vision .mission h3,.about .mission-vision .vision h3{color:var(--primary);margin-bottom:20px;font-size:24px;display:flex;align-items:center}.about .mission-vision .mission h3 svg,.about .mission-vision .vision h3 svg{margin-right:10px;color:var(--secondary)}.about .mission-vision .mission p,.about .mission-vision .vision p{color:var(--text-light);line-height:1.7}.about .team-section{margin-top:80px}.about .team-section h3{font-size:32px;text-align:center;color:var(--primary);margin-bottom:50px;position:relative;display:inline-block}.about .team-section h3:after{content:"";position:absolute;bottom:-15px;left:50%;transform:translate(-50%);width:80px;height:3px;background:var(--secondary);border-radius:2px}.about .team-section .team-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:30px}.about .team-section .team-grid .team-member{background:var(--background-alt);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);transition:transform .3s ease;border:1px solid var(--border)}.about .team-section .team-grid .team-member:hover{transform:translateY(-10px)}.about .team-section .team-grid .team-member:hover .member-image img{transform:scale(1.05)}.about .team-section .team-grid .team-member .member-image{height:250px;overflow:hidden}.about .team-section .team-grid .team-member .member-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.about .team-section .team-grid .team-member .member-info{padding:20px;text-align:center}.about .team-section .team-grid .team-member .member-info h4{color:var(--text-light);margin-bottom:5px;font-size:18px}.about .team-section .team-grid .team-member .member-info p{color:var(--primary);font-size:14px;margin-bottom:10px}.about .team-section .team-grid .team-member .member-info .social-links{display:flex;justify-content:center;gap:15px;margin-top:15px}.about .team-section .team-grid .team-member .member-info .social-links a{color:var(--text-light);transition:color .3s ease}.about .team-section .team-grid .team-member .member-info .social-links a:hover{color:var(--primary)}.about .watermark-logo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60%;max-width:800px;opacity:.03;pointer-events:none;z-index:0}.profile-page{min-height:100vh;padding:40px 20px;position:relative;font-family:Poppins,sans-serif}.profile-container{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:350px 1fr;gap:30px;position:relative;z-index:1}@media (max-width: 992px){.profile-container{grid-template-columns:1fr}}.profile{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:15px;box-shadow:0 10px 30px #00000026;overflow:hidden;height:fit-content;transition:transform .3s ease,box-shadow .3s ease;border:1px solid rgba(255,255,255,.1);border-top:5px solid var(--primary)}.profile:hover{transform:translateY(-5px);box-shadow:0 15px 35px #00000040}.profile-header{padding:30px;text-align:center;border-bottom:1px solid rgba(255,255,255,.1)}.profile-image{width:120px;height:120px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);color:#fff;font-size:3rem;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-weight:600;box-shadow:0 10px 20px #0c9d924d}.profile-header h2{margin:10px 0 5px;font-size:1.8rem;color:var(--text-light)}.profile-header p{color:#ffffffb3;margin:0 0 20px;font-size:1rem}.profile-stats{display:flex;justify-content:center;gap:30px;flex-direction:column;justify-self:center}.stat{text-align:center}.stat-value{display:flex;align-items:center;font-size:1rem;font-weight:700;background:linear-gradient(135deg,var(--primary-light) 0%,var(--secondary) 100%);-webkit-background-clip:text;background-clip:text;flex-direction:column;-webkit-text-fill-color:transparent;margin-bottom:5px}.stat-label{font-size:.9rem;color:#ffffffb3;text-transform:uppercase;letter-spacing:1px;font-weight:500;transition:color .3s ease;color:var(--text-light)}.profile-info{background:#121825b3!important;color:var(--text-light);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:20px 30px;border-radius:15px;box-shadow:0 10px 30px #00000026;margin-top:20px;border:1px solid rgba(255,255,255,.1);display:flex;flex-direction:column;gap:15px;transition:background .3s ease;position:relative;z-index:1;overflow:hidden;border-top:5px solid var(--primary);padding:auto}.info-item{display:flex;align-items:center;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.05);transition:background .3s ease;height:60px;width:100%;gap:35px}.info-item:last-child{border-bottom:none;gap:0}.info-icon{width:40px;height:40px;background:#0c9d921a;color:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-right:15px;flex-shrink:0;transition:background .3s ease}.info-content{flex:1;display:flex;flex-direction:column;justify-content:center;gap:5px;transition:color .3s ease;background-color:#ffffff0d}.info-label{font-size:.85rem;color:#03021d99;margin-bottom:5px;text-transform:uppercase;letter-spacing:1px;font-weight:500;transition:color .3s ease}.info-value{font-size:1.1rem;color:#0b2d2a;font-weight:600;transition:color .3s ease}.profile-actions{padding:20px 30px;display:flex;flex-wrap:wrap;gap:10px;border-top:1px solid rgba(255,255,255,.05);background:#121825b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.profile-actions button{flex:1;min-width:fit-content}.logout-btn{background:#e74c3c1a!important;color:#e74c3c!important;border:1px solid rgba(231,76,60,.2)!important}.logout-btn:hover{background:#e74c3c33!important}.profile-content{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:15px;box-shadow:0 10px 30px #00000026;padding:30px;border:1px solid rgba(255,255,255,.1);margin-top:20px;color:var(--text-light)}.profile-tabs{display:flex;gap:10px;margin-bottom:30px;overflow-x:auto;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1)}.profile-tabs button{padding:10px 20px;background:#12182580;border:none;border-radius:8px;color:#ffffffb3;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .3s ease;white-space:nowrap}.profile-tabs button:hover{background:#0c9d921a;color:var(--primary);box-shadow:0 2px 10px #0c9d9233;transform:translateY(-2px)}.profile-tabs button.active{background:#0c9d9226;color:var(--primary);font-weight:600}.tab-content{min-height:300px;color:var(--text-light);padding:20px;background:#121825b3}.tab-content h3{font-size:1.5rem;margin-bottom:15px;color:var(--primary)}.tab-content p{color:#fffc;line-height:1.6;margin-bottom:20px}.my-courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:20px}.empty-state{text-align:center;padding:50px 20px;background:#12182580;border-radius:10px;margin-top:20px}.empty-state p{margin-bottom:20px;font-size:1.1rem}.progress-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:20px}.progress-card{background:#121825b3;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border-radius:10px;padding:20px;border:1px solid rgba(255,255,255,.05);transition:all .3s ease}.progress-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px #0003}.progress-card h4{font-size:1.1rem;margin-bottom:15px;color:var(--text-light)}.progress-bar-container{height:8px;background:#ffffff1a;border-radius:4px;overflow:hidden;margin-bottom:10px}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary) 0%,var(--secondary) 100%);border-radius:4px}.progress-stats{display:flex;justify-content:space-between;margin-bottom:20px;font-size:.9rem;color:#ffffffb3}.settings-form{background:#121825b3;border-radius:10px;padding:20px;margin-top:20px;border:1px solid rgba(255,255,255,.05)}.form-group{margin-bottom:20px;display:flex;justify-content:space-between;align-items:center}.form-group label{font-size:1rem;color:var(--text-light)}.toggle-switch{position:relative;width:60px;height:34px}.toggle-switch input{opacity:0;width:0;height:0}.toggle-switch label{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:#ffffff1a;transition:.4s;border-radius:34px}.toggle-switch label:before{position:absolute;content:"";height:26px;width:26px;left:4px;bottom:4px;background-color:#fff;transition:.4s;border-radius:50%}.toggle-switch input:checked+label{background-color:var(--primary)}.toggle-switch input:checked+label:before{transform:translate(26px)}@media (max-width: 768px){.profile-page{padding:20px 10px}.profile-container{gap:20px}.profile-header{padding:20px}.profile-image{width:100px;height:100px;font-size:2.5rem}.profile-stats{gap:20px}.stat-value{font-size:1.8rem}.profile-actions{flex-direction:column}.profile-content{padding:20px}.my-courses-grid,.progress-cards{grid-template-columns:1fr}}.course-card-container{width:320px;height:100%;padding:5px}.course-card{display:flex;flex-direction:column;height:100%;transition:all .4s ease;position:relative;overflow:hidden;box-shadow:0 5px 20px #0003;border-radius:var(--radius);border:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.course-image-container{height:180px;overflow:hidden;position:relative}.course-image-container:after{content:"";position:absolute;bottom:0;left:0;width:100%;height:70%;background:linear-gradient(to top,rgba(0,0,0,.9),transparent);z-index:1}.image-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#0c9d920d;z-index:1}.course-image{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.course-card:hover .course-image{transform:scale(1.05)}.course-category{position:absolute;top:10px;left:10px;background:linear-gradient(135deg,#0c9d92e6,#087f76e6);color:#fff;font-size:12px;font-weight:600;padding:5px 12px;border-radius:20px;text-transform:uppercase;letter-spacing:.5px;z-index:2;box-shadow:0 2px 10px #0000004d;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.course-type{position:absolute;top:10px;right:10px;padding:5px 10px;border-radius:20px;font-size:.8rem;font-weight:600;display:flex;align-items:center;gap:5px;z-index:2}.course-type.free{background-color:#10b981e6;color:#fff}.course-type.paid{background-color:#ef4444e6;color:#fff}.disabled-input{background-color:#f3f4f6;cursor:not-allowed}.course-content{padding:20px;flex:1;display:flex;flex-direction:column;position:relative;z-index:2}h3{font-size:18px;font-weight:600;color:var(--text-light);margin-bottom:15px;line-height:1.4;transition:color .3s ease}.course-details{margin-top:auto;display:flex;flex-direction:column;gap:10px;margin-bottom:20px}.detail-item{display:flex;align-items:center;font-size:14px;color:var(--text-light);opacity:.8}.detail-item .icon{margin-right:8px;color:#c1b6e0;font-size:14px}.price-tag{font-weight:600;color:var(--secondary);font-size:22px;margin-top:15px;display:flex;align-items:center;gap:5px}.price-tag:before{content:"";width:30px;height:2px;background-color:var(--secondary);opacity:.5}.course-actions{margin-top:22px;display:flex;gap:10px}.btn{padding:12px 15px;border-radius:8px;font-size:14px;font-weight:500;flex:1;text-align:center;transition:all .3s ease;cursor:pointer;border:none;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;gap:8px}.btn.enroll{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;box-shadow:0 4px 15px #0c9d924d}.btn.enroll .btn-glow{position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);animation:btn-shine 3s infinite}.btn.enroll:hover{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%);transform:translateY(-3px);box-shadow:0 7px 20px #0c9d9266}.btn.enroll.continue{background:linear-gradient(135deg,var(--secondary) 0%,var(--secondary-dark) 100%);box-shadow:0 4px 15px #f9b2334d}.btn.enroll.continue:hover{background:linear-gradient(135deg,var(--secondary-dark) 0%,var(--secondary) 100%);box-shadow:0 7px 20px #f9b23366}.btn.enroll.admin-view{background:linear-gradient(135deg,#6366f1,#4f46e5);box-shadow:0 4px 15px #6366f14d}.btn.enroll.admin-view:hover{background:linear-gradient(135deg,#4f46e5,#6366f1);box-shadow:0 7px 20px #6366f166}.btn.details{background-color:transparent;border:1px solid var(--primary);color:#c1b6e0}.btn.details:hover{background-color:#0c9d921a}.btn.delete{background:linear-gradient(135deg,#f43f5e,#e11d48);color:#fff}.btn.delete:hover{background:linear-gradient(135deg,#e11d48,#f43f5e);transform:translateY(-3px);box-shadow:0 7px 20px #f43f5e66}@keyframes btn-shine{0%{left:-100%}50%{left:100%}to{left:100%}}@media (max-width: 768px){.course-card-container{width:100%}}.loading-page{position:fixed;top:0;left:0;width:100%;height:100vh;background:linear-gradient(to bottom,var(--background-darker),var(--background));display:flex;justify-content:center;align-items:center;z-index:9999;overflow:hidden}.loading-bg-pattern{position:absolute;top:0;left:0;width:100%;height:100%;background-image:radial-gradient(circle at 15% 25%,rgba(155,135,245,.03) 2px,transparent 2px),radial-gradient(circle at 75% 65%,rgba(155,135,245,.03) 2px,transparent 2px),radial-gradient(circle at 85% 15%,rgba(155,135,245,.03) 2px,transparent 2px),radial-gradient(circle at 35% 80%,rgba(155,135,245,.03) 2px,transparent 2px);background-size:80px 80px;opacity:.5;z-index:0}.loader-container{display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;z-index:1}.tech-circle{position:absolute;width:200px;height:200px;border:1px dashed rgba(155,135,245,.2);border-radius:50%;animation:rotateCircle 10s linear infinite;z-index:-1}.tech-circle:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:150px;height:150px;border:1px dashed rgba(155,135,245,.15);border-radius:50%}.tech-circle:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:100px;height:100px;border:1px dashed rgba(155,135,245,.1);border-radius:50%}@keyframes rotateCircle{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loader{position:relative;width:80px;height:80px;border-radius:50%;display:flex;justify-content:center;align-items:center;margin-bottom:30px}.loader-segment{position:absolute;width:100%;height:100%;border-radius:50%;border:3px solid transparent;mix-blend-mode:overlay}.loader-segment:nth-child(1){border-top-color:var(--accent);animation:rotate1 2s linear infinite}.loader-segment:nth-child(2){border-right-color:#ff9100;animation:rotate2 2s linear infinite}.loader-segment:nth-child(3){border-bottom-color:var(--accent-light);animation:rotate3 2s linear infinite}.loader-segment:nth-child(4){border-left-color:var(--secondary);animation:rotate4 2s linear infinite}@keyframes rotate1{0%{transform:rotateX(35deg) rotateY(-45deg) rotate(0)}to{transform:rotateX(35deg) rotateY(-45deg) rotate(360deg)}}@keyframes rotate2{0%{transform:rotateX(50deg) rotateY(10deg) rotate(0)}to{transform:rotateX(50deg) rotateY(10deg) rotate(360deg)}}@keyframes rotate3{0%{transform:rotateX(-35deg) rotateY(55deg) rotate(0)}to{transform:rotateX(-35deg) rotateY(55deg) rotate(360deg)}}@keyframes rotate4{0%{transform:rotateX(-50deg) rotateY(-10deg) rotate(0)}to{transform:rotateX(-50deg) rotateY(-10deg) rotate(360deg)}}.loader-logo{height:60px;filter:drop-shadow(0 5px 15px rgba(155,135,245,.5));animation:pulseLogo 3s infinite alternate}@keyframes pulseLogo{0%{filter:drop-shadow(0 5px 15px rgba(155,135,245,.3));transform:scale(1)}to{filter:drop-shadow(0 5px 20px rgba(155,135,245,.6));transform:scale(1.05)}}.loader-text{margin-top:20px;font-size:1.2rem;font-weight:500;letter-spacing:1px;color:var(--accent-light);position:relative}.loader-text:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:0;height:2px;background:linear-gradient(to right,transparent,var(--accent),transparent);animation:expandLine 2s ease-in-out infinite}@keyframes expandLine{0%{width:0}50%{width:100%}to{width:0}}.loading-circuit{position:absolute;bottom:50px;right:50px;width:150px;height:150px;background-image:url("data:image/svg+xml,%3Csvg width='150' height='150' viewBox='0 0 150 150' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%239b87f5' stroke-width='1' stroke-opacity='0.2'%3E%3Cpath d='M0,75 L150,75 M75,0 L75,150' /%3E%3Ccircle cx='75' cy='75' r='50' /%3E%3Ccircle cx='75' cy='75' r='25' /%3E%3C/g%3E%3C/svg%3E");opacity:.3;z-index:0}@media (max-width: 768px){.loading-circuit{width:100px;height:100px;bottom:30px;right:20px}.loader{width:60px;height:60px}.loader-logo{height:50px}.tech-circle{width:150px;height:150px}.tech-circle:before{width:100px;height:100px}.tech-circle:after{width:50px;height:50px}}.courses{padding:80px 0;position:relative;background-color:var(--background);min-height:70vh}.courses .courses-header{text-align:center;margin-bottom:40px;max-width:800px;margin-left:auto;margin-right:auto;padding:0 20px;animation:fadeIn .8s ease-out}.courses .courses-header h2{font-size:38px;color:var(--primary);margin-bottom:15px;font-weight:700;position:relative;display:inline-block}.courses .courses-header h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:80px;height:3px;background:var(--secondary);border-radius:3px}.courses .courses-header p{font-size:18px;color:var(--text-light);line-height:1.6}.courses .watermark-logo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-5deg);width:60%;max-width:800px;opacity:.03;pointer-events:none;z-index:0}.courses .search-filter-container{display:flex;flex-wrap:wrap;justify-content:center;gap:15px;margin-bottom:20px;padding:0 20px;animation:fadeIn .8s ease-out .2s both}.courses .search-filter-container .search-bar{flex:1;max-width:500px;position:relative}.courses .search-filter-container .search-bar .search-icon{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--text-light);font-size:16px}.courses .search-filter-container .search-bar input{width:100%;padding:12px 15px 12px 45px;border:1px solid var(--border);border-radius:30px;font-size:16px;transition:all .3s ease;background-color:#ffffff0d;color:var(--text-light);box-shadow:0 2px 10px #00000026}.courses .search-filter-container .search-bar input:focus{border-color:var(--primary);box-shadow:0 2px 15px #0c9d9240;outline:none}.courses .search-filter-container .filter-toggle{background-color:var(--background-alt);color:var(--text-light);border:1px solid var(--border);padding:12px 20px;border-radius:30px;display:flex;align-items:center;gap:8px;font-weight:500;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 10px #00000026}.courses .search-filter-container .filter-toggle:hover{background-color:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 2px 15px #0c9d9240}.courses .filters{margin-bottom:40px;display:flex;justify-content:center;flex-wrap:wrap;gap:10px;padding:0 20px;overflow:hidden}.courses .filters button{background-color:var(--background-alt);border:1px solid var(--border);color:var(--text-light);padding:8px 18px;border-radius:30px;font-size:14px;font-weight:500;cursor:pointer;transition:all .3s ease}.courses .filters button:hover{background-color:#0c9d921a;color:var(--primary);border-color:#0c9d9233;transform:translateY(-2px)}.courses .filters button.active{background-color:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 5px 15px #0c9d9240}.courses .course-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:30px;max-width:1400px;margin:0 auto;padding:0 20px;position:relative;z-index:1}.courses .empty-courses{text-align:center;padding:50px 20px;background-color:var(--background-alt);border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:600px;margin:30px auto;grid-column:1 / -1;animation:fadeIn .6s ease-out;border-top:4px solid var(--secondary)}.courses .empty-courses h3{color:var(--primary);margin-bottom:15px;font-size:24px}.courses .empty-courses p{color:var(--text-light);margin-bottom:20px}.courses .empty-courses .common-btn{margin-top:10px}.courses .courses-pagination{display:flex;justify-content:center;align-items:center;margin-top:50px;gap:5px}.courses .courses-pagination .pagination-btn{width:40px;height:40px;border-radius:8px;background:var(--background-alt);border:1px solid var(--border);font-weight:500;color:var(--text-light);cursor:pointer;transition:all .3s ease}.courses .courses-pagination .pagination-btn:hover{background:var(--primary-light);color:#fff}.courses .courses-pagination .pagination-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.courses .courses-pagination .pagination-btn.next{width:auto;padding:0 15px}.courses .courses-pagination .pagination-dots{color:var(--text-light);margin:0 5px}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 992px){.courses .course-container{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}}@media (max-width: 768px){.courses{padding:60px 0}.courses .courses-header h2{font-size:30px}.courses .courses-header p{font-size:16px}.courses .course-container{grid-template-columns:1fr;max-width:450px}}.course-description{background:#0009;padding:2rem 0;color:#fff;position:relative;overflow:hidden}.course-description:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:url(../../assets/bg-texture.png);opacity:.1;z-index:0}.container{max-width:1200px;margin:0 auto;padding:0 2rem;position:relative;z-index:1}.course-header{display:flex;align-items:center;gap:2rem;margin-bottom:3rem}.course-image{width:350px;border-radius:12px;box-shadow:0 10px 30px #0000004d}.course-info h2{font-size:2.5rem;margin-bottom:.5rem;color:#fff}.course-meta{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem;color:#ffffffb3}.course-meta p{display:flex;align-items:center;gap:.5rem;font-size:1rem}.meta-icon{font-size:1.2rem;color:#64ffda}.course-rating{display:flex;align-items:center;gap:.5rem}.star{color:#ffc107;font-size:1.2rem}.rating-text{font-size:1rem;color:#fffc}.course-content-grid{display:grid;grid-template-columns:2fr 1fr;gap:3rem}.course-description-content h3{font-size:2rem;margin-bottom:1rem;color:#fff}.course-description-content p{font-size:1.1rem;line-height:1.7;color:#fffc;margin-bottom:2rem}.learning-objectives{display:flex;flex-direction:column;gap:1rem}.objective{display:flex;align-items:center;gap:1rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:1rem}.objective-icon{font-size:1.5rem;color:#64ffda}.objective p{font-size:1rem;line-height:1.5;color:#fffc;margin:0}.course-highlights{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:2rem}.highlight{display:flex;flex-direction:column;align-items:flex-start;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:1.5rem}.highlight-icon{font-size:2rem;color:#64ffda;margin-bottom:.5rem}.highlight-content h4{font-size:1.2rem;margin-bottom:.3rem;color:#fff}.highlight-content p{font-size:.9rem;line-height:1.4;color:#ffffffb3;margin:0}.course-sidebar{display:flex;flex-direction:column;gap:2rem}.sidebar-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:2rem}.price-container{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.price-label{font-size:1.2rem;color:#fffc}.price{font-size:1.8rem;font-weight:600;color:#64ffda}.course-features{display:flex;flex-direction:column;gap:1rem;margin-bottom:2rem}.feature-item{display:flex;align-items:center;gap:.7rem;font-size:1rem;color:#ffffffb3}.feature-icon{font-size:1.2rem;color:#64ffda}.admin-course-actions{display:flex;flex-direction:column;gap:1rem}.admin-preview-btn,.admin-edit-btn,.enroll-btn{padding:.8rem 1.5rem;border-radius:8px;font-size:1rem;cursor:pointer;transition:background-color .3s,color .3s;border:none;outline:none}.admin-preview-btn{background-color:#2196f3;color:#fff}.admin-edit-btn{background-color:#4caf50;color:#fff;display:flex;align-items:center;justify-content:center;gap:.5rem}.enroll-btn{background-color:#64ffda;color:#000;font-weight:600}.enroll-btn.continue-btn{background-color:#ff9800;color:#000}.watermark-logo{position:absolute;bottom:10px;right:20px;width:150px;opacity:.05;z-index:0}@media (max-width: 1024px){.course-content-grid{grid-template-columns:1fr}.course-sidebar{gap:1rem}.sidebar-card{padding:1.5rem}}@media (max-width: 768px){.course-header{flex-direction:column;align-items:flex-start;gap:1rem}.course-image{width:100%}.course-info h2{font-size:2rem}.course-meta{margin-bottom:.5rem}.course-description-content h3{font-size:1.7rem}.highlight{padding:1rem}.watermark-logo{width:120px}}@media (max-width: 576px){.container{padding:0 1rem}.course-info h2{font-size:1.7rem}.course-meta p{font-size:.9rem}.course-description-content p{font-size:1rem}.highlight-content h4,.price-label{font-size:1.1rem}.price{font-size:1.6rem}.feature-item{font-size:.9rem}.admin-preview-btn,.admin-edit-btn,.enroll-btn{padding:.7rem 1.2rem;font-size:.9rem}.watermark-logo{width:100px}}.course-reviews{margin-top:2rem}.review-item{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:1.5rem;margin-bottom:1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.review-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.review-author{font-weight:600;color:#fff}.review-rating{display:flex;gap:2px}.review-comment{color:#fffc;line-height:1.6;margin:0}.star{color:#fbbf24;font-size:1.1rem}.star.empty{color:#ffffff4d}.rating-text{margin-left:.5rem;color:#fffc;font-size:.9rem}.payment-success-page{min-height:100vh;display:flex;justify-content:center;align-items:center;position:relative;padding:50px 20px;background-color:var(--background)}.success-message{width:100%;max-width:900px;background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:50px;display:flex;flex-direction:column;align-items:center;box-shadow:0 10px 30px #0000004d;border:1px solid var(--border);position:relative;z-index:1;color:var(--text-light)}@media (min-width: 768px){.success-message{flex-direction:row;align-items:flex-start;text-align:left}}.success-icon{font-size:5rem;color:var(--primary);margin-bottom:30px;background:#0c9d921a;width:120px;height:120px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid rgba(12,157,146,.2)}@media (min-width: 768px){.success-icon{margin-right:40px;margin-bottom:0}}.success-content{flex:1}.success-content h2{font-size:2.5rem;margin-bottom:20px;font-weight:700;text-align:center}@media (min-width: 768px){.success-content h2{text-align:left}}.tech-gradient{background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}.success-description{font-size:1.1rem;margin-bottom:30px;color:var(--text-light);line-height:1.6}.reference-container{margin-bottom:30px;padding:15px;background:#0c9d921a;border-radius:10px;display:flex;flex-direction:column;gap:5px;border:1px solid rgba(12,157,146,.2)}@media (min-width: 768px){.reference-container{flex-direction:row;align-items:center;justify-content:space-between}}.reference-label{font-size:.9rem;color:var(--text-light);opacity:.7}.reference-number{font-size:1.2rem;font-weight:600;color:var(--primary);letter-spacing:1px}.glow-text{text-shadow:0 0 10px rgba(12,157,146,.5)}.success-features{display:grid;grid-template-columns:1fr;gap:15px;margin-bottom:30px}@media (min-width: 768px){.success-features{grid-template-columns:repeat(2,1fr)}}.feature{background:#121825b3;border-radius:10px;padding:20px;display:flex;align-items:center;gap:15px;box-shadow:0 5px 15px #0000001a;border:1px solid var(--border);transition:all .3s ease}.feature:hover{transform:translateY(-5px);box-shadow:0 8px 20px #0003}.feature-icon{width:45px;height:45px;border-radius:10px;background:#0c9d9226;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.5rem;flex-shrink:0}.feature-text h4{margin:0 0 5px;font-size:1rem;color:var(--text-light)}.feature-text p{margin:0;font-size:.85rem;color:#ffffffb3}.dashboard-btn-container{text-align:center;margin-top:10px}.dashboard-btn{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;font-weight:600;padding:12px 25px;border-radius:10px;text-decoration:none;font-size:1.1rem;box-shadow:0 5px 20px #0c9d924d;transition:all .3s ease}.dashboard-btn:hover{transform:translateY(-3px);box-shadow:0 8px 25px #0c9d9266}.watermark-logo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);opacity:.03;max-width:50%;z-index:0;pointer-events:none}@media (max-width: 768px){.success-message{padding:30px 20px}.success-icon{font-size:3.5rem;width:90px;height:90px}.success-content h2{font-size:1.8rem}.success-description{font-size:1rem}}.student-dashboard{padding:80px 20px;text-align:center;min-height:100vh;background-color:var(--background);position:relative;overflow:hidden}.student-dashboard:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70%;height:70%;background-image:url(/lovable-uploads/4006c787-79b5-446d-a87f-67bd8a297c27.png);background-repeat:no-repeat;background-position:center;background-size:contain;opacity:.05;z-index:0;pointer-events:none}.student-dashboard h2{font-size:2.5rem;color:var(--primary);margin-bottom:2rem;position:relative;display:inline-block;z-index:1}.student-dashboard h2:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:80px;height:3px;background:var(--secondary);border-radius:3px}.dashboard-content{display:flex;justify-content:center;flex-wrap:wrap;gap:30px;margin-top:40px;position:relative;z-index:1;animation:fadeUp .8s ease-out}.dashboard-content p{font-size:1.2rem;color:var(--text-light);background-color:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:500px}.course-item-container{width:350px;transition:transform .3s ease}.course-item-container:hover{transform:translateY(-8px)}.course-progress{background:#1a2135cc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:15px;border-radius:0 0 10px 10px;border:1px solid rgba(255,255,255,.1);margin-top:-5px}.progress-bar-container{width:100%;height:8px;background:#ffffff1a;border-radius:10px;overflow:hidden;margin-bottom:10px}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary) 0%,var(--secondary) 100%);border-radius:10px}.progress-stats{display:flex;justify-content:space-between;color:#fff;font-size:.9rem;padding:0 5px}.no-courses{display:flex;flex-direction:column;align-items:center;justify-content:center;background:#1a2135cc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:15px;padding:40px 30px;width:100%;max-width:600px}.no-courses p{color:var(--text-light);font-size:1.2rem;margin-bottom:20px;background:transparent;box-shadow:none;border:none;padding:0;max-width:none}.browse-courses-btn{display:inline-block;background:linear-gradient(90deg,var(--primary) 0%,var(--secondary) 100%);color:#fff;font-weight:600;padding:12px 25px;border-radius:50px;text-decoration:none;box-shadow:0 4px 15px #0003;transition:all .3s ease;border:none;position:relative;overflow:hidden}.browse-courses-btn:after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;opacity:0;transform:rotate(30deg);background:#ffffff21;background:linear-gradient(to right,#ffffff21,#ffffff21 77%,#ffffff80 92%,#fff0)}.browse-courses-btn:hover:after{opacity:1;top:-30%;left:-30%;transition:all .5s ease}.browse-courses-btn:hover{transform:translateY(-5px);box-shadow:0 7px 25px #0000004d}.browse-courses-btn:active{transform:translateY(-2px)}.watermark-logo{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);opacity:.03;width:50%;max-width:800px;z-index:0;pointer-events:none}@keyframes fadeUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.student-dashboard{padding:60px 15px}.student-dashboard h2{font-size:2rem}.course-item-container{width:100%;max-width:350px}}.notification-bell-container{position:relative;display:inline-block}.notification-bell-btn{position:relative;background:#9b87f51a;border:1px solid rgba(155,135,245,.3);border-radius:8px;padding:8px;cursor:pointer;color:#ffffffe6;transition:all .3s ease;display:flex;align-items:center;justify-content:center}.notification-bell-btn:hover{background:#9b87f533;border-color:#9b87f580}.notification-badge{position:absolute;top:-6px;right:-6px;background:#ff4757;color:#fff;border-radius:10px;padding:2px 6px;font-size:10px;font-weight:600;min-width:16px;height:16px;display:flex;align-items:center;justify-content:center}.notification-dropdown{position:absolute;top:100%;right:0;width:320px;background:#0b1437f2;border:1px solid rgba(255,255,255,.1);border-radius:12px;box-shadow:0 8px 32px #0000004d;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:1000;margin-top:8px;max-height:400px;overflow:hidden}.notification-header{padding:16px;border-bottom:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;align-items:center}.notification-header h3{margin:0;color:#ffffffe6;font-size:16px;font-weight:600}.mark-all-read-btn{background:#9b87f533;border:1px solid rgba(155,135,245,.3);border-radius:6px;padding:4px 8px;color:#fffc;font-size:12px;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .2s ease}.mark-all-read-btn:hover{background:#9b87f54d}.mark-all-read-btn:disabled{opacity:.5;cursor:not-allowed}.notification-list{max-height:300px;overflow-y:auto}.notification-item{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.05);display:flex;justify-content:space-between;align-items:flex-start;gap:8px;transition:all .2s ease;position:relative}.notification-item:hover{background:#9b87f50d}.notification-item.unread{background:#9b87f514;border-left:3px solid #9b87f5}.notification-content{flex:1}.notification-content h4{margin:0 0 4px;color:#ffffffe6;font-size:14px;font-weight:500}.notification-content p{margin:0 0 4px;color:#ffffffb3;font-size:12px;line-height:1.4}.notification-time{color:#ffffff80;font-size:11px}.notification-actions{display:flex;gap:4px;flex-shrink:0}.mark-read-btn,.delete-btn{background:#ffffff1a;border:none;border-radius:4px;padding:4px;cursor:pointer;color:#fff9;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.mark-read-btn:hover{background:#22c55e33;color:#22c55e}.delete-btn:hover{background:#ef444433;color:#ef4444}.no-notifications{padding:32px 16px;text-align:center;color:#ffffff80}.no-notifications svg{margin-bottom:8px;opacity:.5}.notification-footer{padding:12px 16px;border-top:1px solid rgba(255,255,255,.1);text-align:center}.view-all-btn{background:none;border:none;color:#9b87f5;cursor:pointer;font-size:12px;transition:color .2s ease}.view-all-btn:hover{color:#b39df5}@media (max-width: 768px){.notification-dropdown{width:280px;right:-20px}}.dashboard-header{position:fixed;top:0;left:0;right:0;height:70px;background:#141928f2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,.1);z-index:1000;box-shadow:0 2px 20px #0000004d}.dashboard-header-content{display:flex;align-items:center;justify-content:space-between;height:100%;padding:0 2rem;max-width:100%}.header-left{display:flex;align-items:center;gap:1rem}.page-title-section{display:flex;align-items:center;gap:.75rem}.page-title{font-size:1.5rem;font-weight:600;color:#fff;margin:0}.role-badge{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:.25rem .75rem;border-radius:1rem;font-size:.75rem;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.header-right{display:flex;align-items:center;gap:1rem}.header-icon-wrapper{position:relative}.header-icon-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:10px;color:#fff;text-decoration:none;transition:all .3s ease;position:relative;padding:auto}.header-icon-btns{display:flex;align-items:center;justify-content:center;width:90px;height:40px;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:10px;color:#fff;text-decoration:none;transition:all .3s ease;position:relative;padding:auto}.header-icon-btn:hover{background:#fff3;transform:translateY(-2px);box-shadow:0 5px 15px #0000004d}.header-badge{position:absolute;top:-5px;right:-5px;background:#ff4757;color:#fff;font-size:.7rem;font-weight:600;padding:.1rem .35rem;border-radius:10px;min-width:18px;text-align:center;line-height:1.2;border:2px solid rgba(20,25,40,.95)}.profile-dropdown-container{position:relative}.profile-btn{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:.1px .8rem;cursor:pointer;transition:all .3s ease}.profile-btn:hover{background:#fff3;transform:translateY(-1px)}.profile-info{display:flex;align-items:center;gap:.75rem}.profile-avatar{width:32px;height:32px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff}.profile-text{display:flex;flex-direction:column;align-items:flex-start;min-width:0}.profile-name{font-weight:600;color:#fff;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:120px}.profile-role{font-size:.75rem;color:#ffffffb3;text-transform:uppercase;letter-spacing:.5px}.dropdown-arrow{color:#ffffffb3;transition:transform .3s ease}.dropdown-arrow.open{transform:rotate(180deg)}.profile-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:#141928fa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:12px;box-shadow:0 10px 40px #00000080;min-width:200px;overflow:hidden;z-index:1001}.dropdown-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;color:#fff;text-decoration:none;background:none;border:none;width:100%;text-align:left;cursor:pointer;transition:all .2s ease;font-size:.9rem}.dropdown-item:hover{background:#ffffff1a}.logout-btn{border-top:1px solid rgba(255,255,255,.1);color:#ff6b7a}.logout-btn:hover{background:#ff6b7a1a}@media (max-width: 768px){.dashboard-header-content{padding:0 1rem}.page-title{font-size:1.25rem}.profile-text{display:none}.profile-info{gap:0}.dropdown-arrow{display:none}}@media (max-width: 480px){.role-badge{display:none}.header-right{gap:.5rem}}.dashboard-content{padding-top:90px}.course-study-page{position:relative;background-color:var(--background);min-height:calc(100vh - 60px)}.start-final-exam-button{background-color:#007bff;color:#fff;padding:.75rem 1.5rem;border:none;font-weight:700;border-radius:5px;cursor:pointer;margin-top:1rem}.start-final-exam-button:hover{background-color:#0056b3}.course-completion-card{background:#1a2135e6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:15px;padding:30px;margin:30px 0;box-shadow:0 8px 25px #0000004d;border:2px solid var(--primary);text-align:center}.completion-header{margin-bottom:25px}.completion-header .completion-icon{font-size:3rem;color:gold;margin-bottom:15px}.completion-header h3{font-size:1.8rem;color:#c1b6e0;margin:0 0 10px}.completion-header p{color:var(--text-light);margin:0}.final-exam-section{background:#ffffff0d;border-radius:10px;padding:20px;margin:20px 0}.exam-info{display:flex;align-items:center;justify-content:center;gap:15px;margin-bottom:15px}.exam-info .exam-icon{font-size:2rem;color:var(--primary)}.exam-info h4{margin:0;color:var(--text-light);font-size:1.2rem}.exam-info p{margin:0;color:#ffffffb3;font-size:.9rem}.start-final-exam-button{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border:none;padding:12px 30px;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #0c9d924d}.start-final-exam-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0c9d9266}.exam-results-section{margin:20px 0}.exam-result{background:#ffffff0d;border-radius:10px;padding:20px;display:flex;align-items:center;gap:15px}.exam-result.passed{border-left:4px solid #10b981}.exam-result.failed{border-left:4px solid #ef4444}.exam-result .result-icon{font-size:2rem}.exam-result.passed .result-icon{color:#10b981}.exam-result.failed .result-icon{color:#ef4444}.exam-result h4{margin:0 0 5px;color:var(--text-light)}.exam-result p{margin:0;color:#ffffffb3;font-size:.9rem}.success-message{color:#10b981!important;font-weight:500}.retry-message{color:#ef4444!important}.certification-status{background:#ffffff0d;border-radius:10px;padding:20px;margin:20px 0}.certification-status h4{margin:0 0 15px;color:var(--text-light)}.download-certificate-btn{background:linear-gradient(135deg,#10b981,#059669);color:#fff;text-decoration:none;padding:10px 25px;border-radius:6px;font-weight:500;display:inline-block;transition:all .3s ease}.download-certificate-btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px #10b9814d}.course-container{display:flex;transition:all .3s ease}.sidebar-toggle{position:absolute;top:20px;left:20px;z-index:100;width:36px;height:36px;border:none;background-color:#ffffff1a;box-shadow:0 2px 4px #0003;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:18px;color:var(--text-light);transition:all .2s;border:1px solid var(--border)}.sidebar-toggle:hover{background-color:var(--primary);transform:scale(1.05)}.course-sidebar{width:280px;background:#121825cc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);height:auto;position:sticky;top:0;padding:20px 0;box-shadow:2px 0 5px #0003;transition:all .3s ease;z-index:10;border-right:1px solid var(--border);color:var(--text-light)}.course-sidebar.closed{width:0;padding:0;overflow:hidden}.sidebar-open .course-main-content{margin-left:280px;width:calc(100% - 280px)}.sidebar-closed .course-main-content{margin-left:0;width:100%}.sidebar-header{padding:0 20px 15px;text-align:center;border-bottom:1px solid var(--border)}.course-thumbnail{width:100%;max-width:180px;height:auto;border-radius:10px;margin-bottom:12px;box-shadow:0 4px 8px #0003}.sidebar-header h3{font-size:1.2rem;color:var(--text-light);margin:0;line-height:1.4}.sidebar-progress{padding:15px 20px;border-bottom:1px solid var(--border)}.progress-bar-wrapper{margin-top:10px}.progress-bar{width:100%;height:8px;background-color:#ffffff1a;border-radius:50px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(to right,var(--primary),var(--secondary));border-radius:50px;transition:width 1s ease}.progress-text{display:flex;justify-content:space-between;margin-top:8px;font-size:.8rem;color:#ffffffb3}.sidebar-nav{padding:20px;display:flex;flex-direction:column;gap:5px}.nav-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;color:var(--text-light);font-size:.95rem;text-decoration:none;transition:all .2s ease;cursor:pointer;border:none;background:none;text-align:left;width:100%}.nav-item svg{font-size:1.3rem;color:var(--text-light)}.nav-item:hover{background-color:#ffffff0d}.nav-item.active{background-color:#0c9d9226;color:#c1b6e0}.nav-item.active svg{color:#c1b6e0}.admin-panel{padding:20px;margin-top:20px;border-top:1px solid var(--border)}.admin-panel h4{font-size:1rem;color:var(--text-light);margin-bottom:12px}.admin-link{display:block;padding:10px;margin-bottom:5px;background:#ffffff0d;border-radius:6px;color:var(--text-light);text-decoration:none;font-size:.9rem;transition:background .2s}.admin-link:hover{background:#0c9d9226}.course-main-content{flex:1;padding:30px;transition:all .3s ease;color:var(--text-light)}.course-header{margin-bottom:30px}.section-title{font-size:1.8rem;color:#c1b6e0;font-weight:600;margin-bottom:20px;position:relative;display:inline-block}.section-title:after{content:"";position:absolute;left:0;bottom:-5px;width:40px;height:4px;background:var(--secondary);border-radius:2px}.course-info{background:#00008b;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:20px;box-shadow:0 4px 6px #0003;border:1px solid var(--border)}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}.info-item{display:flex;align-items:center}.info-icon{font-size:2rem;color:#c1b6e0;margin-right:15px}.info-text h4{margin:0 0 5px;color:#fff9;font-size:.9rem}.info-text p{margin:0;font-weight:600;color:var(--text-light);font-size:1.1rem}.course-progress-section{margin:30px 0}.course-progress-section h3{font-size:1.4rem;margin-bottom:20px;color:#c1b6e0}.progress-stats{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:30px;box-shadow:0 4px 6px #0003;border:1px solid var(--border)}.progress-card{display:flex;align-items:center}.progress-circle{width:120px;height:120px;border-radius:50%;position:relative;background:conic-gradient(var(--primary) var(--progress),rgba(255,255,255,.1) 0);margin-right:30px;display:flex;align-items:center;justify-content:center}.progress-circle:before{content:"";position:absolute;width:90px;height:90px;border-radius:50%;background:#121825cc}.progress-circle span{position:relative;font-size:1.5rem;font-weight:600;color:var(--text-light)}.progress-details{flex:1}.progress-details p{margin:0 0 15px;font-size:1.1rem;color:var(--text-light)}.progress-bar-container{margin-top:10px}.course-description{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:25px;margin-bottom:30px;box-shadow:0 4px 6px #0003;border:1px solid var(--border);height:auto}.course-description h3{font-size:1.4rem;margin-bottom:15px;color:#c1b6e0}.course-description p{margin:0;line-height:1.7;color:var(--text-light)}.course-navigation-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-top:30px}.nav-card{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:25px;box-shadow:0 4px 6px #0003;border:1px solid var(--border);transition:transform .2s ease,box-shadow .2s ease;cursor:pointer}.nav-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #0000004d}.nav-icon{font-size:2.5rem;color:#c1b6e0;margin-bottom:15px}.nav-card h5{font-size:1.2rem;margin:0 0 10px;color:var(--text-light)}.nav-card p{margin:0;color:#ffffffb3;font-size:.9rem}.course-analytics{margin:30px 0}.analytics-card{display:flex;background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:20px;border-radius:10px;box-shadow:0 4px 8px #0003;border:1px solid var(--border);transition:transform .2s,box-shadow .2s}.quiz-section-analytics .analytics-card{margin-bottom:30px}.analytics-card:hover{transform:translateY(-3px);box-shadow:0 8px 15px #0000004d}.quiz-marks-card{border-left:4px solid #3b82f6}.card-icon{display:flex;align-items:center;justify-content:center;width:80px;height:80px;background:linear-gradient(135deg,#3b82f6,#2563eb);border-radius:10px;margin-right:20px;flex-shrink:0}.marks-icon{font-size:2.5rem;color:#fff}.card-content{flex:1}.card-content h5{margin:0 0 15px;font-size:1.4rem;color:var(--text-light)}.marks-info{margin-top:10px}.marks-total{margin:0 0 10px;font-size:1.1rem;color:var(--text-light)}.marks-total strong{font-size:2rem;color:#3b82f6}.marks-progress{position:relative;height:10px;background-color:#ffffff1a;border-radius:5px;margin:15px 0}.marks-progress-fill{height:100%;background:linear-gradient(to right,#3b82f6,#2563eb);border-radius:5px;transition:width 1s ease}.marks-percentage{position:absolute;right:0;top:-20px;font-size:1rem;font-weight:700;color:#3b82f6}.marks-detail{margin:5px 0 0;font-size:.95rem;color:#fff9}.content-section{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:25px;box-shadow:0 4px 6px #0003;border:1px solid var(--border)}.lectures-preview{text-align:center;padding:30px 0}.help-text{margin-bottom:20px;color:var(--text-light)}.lectures-link{display:flex;align-items:center;justify-content:center;gap:15px;background:var(--primary);color:#fff;text-decoration:none;padding:20px;border-radius:10px;max-width:400px;margin:0 auto;transition:all .2s;border:1px solid rgba(12,157,146,.3)}.lectures-link:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 15px #0003}.lectures-link .icon{font-size:2.5rem}.lectures-link h4{margin:0 0 5px;font-size:1.2rem}.lectures-link p{margin:0;font-size:.9rem;opacity:.9}.quizzes-list{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:25px;box-shadow:0 4px 6px #0003;border:1px solid var(--border)}.quizzes-list h3{margin-top:0;margin-bottom:20px;color:#c1b6e0;font-size:1.3rem}.quiz-item{display:flex;align-items:center;justify-content:space-between;padding:15px;border-bottom:1px solid var(--border)}.quiz-item:last-child{border-bottom:none}.quiz-item-info{display:flex;align-items:center;gap:15px}.quiz-icon{font-size:2rem;color:#3b82f6}.quiz-item-info h4{margin:0 0 5px;color:var(--text-light)}.quiz-item-info p{margin:0;color:#fff9;font-size:.9rem}.quiz-marks{color:#3b82f6;margin-top:5px;font-weight:500}.take-quiz-btn{background-color:#3b82f6;color:#fff;border:none;border-radius:5px;padding:10px 15px;font-size:.9rem;text-decoration:none;transition:all .3s}.take-quiz-btn:hover{background-color:#2563eb;transform:translateY(-3px);box-shadow:0 5px 15px #2b63eb66}.no-quizzes-message{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;padding:40px;text-align:center;box-shadow:0 4px 6px #0003;border:1px solid var(--border);color:var(--text-light)}.view-all-btn{background-color:#ffffff1a;color:var(--text-light);border:1px solid var(--border);border-radius:6px;padding:10px 15px;font-size:.9rem;text-decoration:none;display:inline-block;transition:all .2s}.view-all-btn:hover{background-color:#0c9d921a;border-color:var(--primary);color:#c1b6e0}@media (max-width: 992px){.sidebar-open .course-main-content{margin-left:0;width:100%}.course-container{flex-direction:column}.course-sidebar{position:fixed;top:0;left:0;height:100vh;z-index:1000;transform:translate(-100%)}.course-sidebar.open{transform:translate(0);width:280px}.course-main-content{margin-left:0!important;width:100%!important;padding:20px}.sidebar-toggle{position:fixed;left:auto;right:20px}}@media (max-width: 768px){.course-main-content{padding:15px}.progress-card{flex-direction:column;align-items:center;text-align:center}.progress-circle{margin-right:0;margin-bottom:20px}.analytics-card{flex-direction:column}.card-icon{margin-right:0;margin-bottom:15px}.info-grid{grid-template-columns:1fr}.quiz-item{flex-direction:column;align-items:flex-start;gap:15px}.take-quiz-btn{width:100%;text-align:center}.course-completion-card{padding:20px}.completion-header .completion-icon{font-size:2.5rem}.exam-info,.exam-result{flex-direction:column;text-align:center}}.course-watermark{text-align:center;margin-top:50px;opacity:.4}.course-watermark img{max-width:100px}:root{--sidebar-width: 320px;--sidebar-collapsed-width: 70px;--header-height: 80px;--video-max-height: 600px}.lecture-container{display:flex;flex-direction:column;min-height:80vh;background-color:var(--background);position:relative;color:var(--text-light)}.lecture-top-progress{background:#1a2135cc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:15px 20px;border-bottom:1px solid rgba(255,255,255,.05);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:10}.course-progress-bar{flex:1;margin-right:20px}.progress-stats{display:flex;justify-content:space-between;margin-bottom:5px;font-weight:500}.progress-text{color:#fffc}.progress-percentage{font-weight:700;color:var(--primary)}.progress-bar-container{height:8px;background-color:#ffffff1a;border-radius:4px;overflow:hidden}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary) 0%,var(--primary-dark) 100%);border-radius:4px;transition:width .5s ease}.quiz-progress-pill{display:flex;align-items:center;background:#0c9d9233;border:1px solid rgba(12,157,146,.3);padding:5px 12px;border-radius:20px}.quiz-progress-pill .quiz-icon{color:var(--primary);margin-right:6px}.lecture-layout{display:flex;min-height:calc(100vh - var(--header-height))}.lecture-sidebar{width:var(--sidebar-width);background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-right:1px solid rgba(255,255,255,.05);display:flex;flex-direction:column;transition:width .3s ease;overflow:hidden;flex-shrink:0}.lecture-sidebar.collapsed{width:var(--sidebar-collapsed-width)}.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:15px;border-bottom:1px solid rgba(255,255,255,.05)}.sidebar-toggle{background:#ffffff1a;border:none;color:var(--text-light);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.sidebar-toggle:hover{background:#fff3}.lecture-controls{padding:15px;border-bottom:1px solid rgba(255,255,255,.05)}.add-lecture-btn{width:100%;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;padding:10px 15px;border-radius:6px;cursor:pointer;font-weight:500;transition:all .3s;box-shadow:0 4px 15px #0c9d9233}.add-lecture-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0c9d924d}.lecture-form{padding:15px;background:#121825b3;border-bottom:1px solid rgba(255,255,255,.05)}.lecture-form h2{font-size:1.1rem;margin-bottom:15px;color:var(--text-light)}.form-group{margin-bottom:12px}.form-group input,.form-group textarea{width:100%;padding:8px 12px;border:1px solid rgba(255,255,255,.1);background:#0003;border-radius:4px;font-size:.9rem;color:var(--text-light)}.form-group textarea{height:100px;resize:vertical}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #0c9d9233}.video-preview{margin:10px 0;border-radius:6px;overflow:hidden}.lecture-list-container{flex:1;overflow-y:auto;padding:10px}.lecture-list h3{font-size:1rem;margin-bottom:12px;color:var(--text-light);padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,.1)}.lecture-item{margin-bottom:8px}.lecture-number{display:flex;justify-content:space-between;align-items:center;padding:12px;border-radius:6px;cursor:pointer;transition:all .3s;background:#121825b3;border:1px solid rgba(255,255,255,.05)}.lecture-number:hover{background:#0c9d921a;transform:translateY(-2px)}.lecture-number.active{background:#0c9d9226;border-left:3px solid var(--primary)}.lecture-info{display:flex;align-items:flex-start;flex:1}.lecture-count{background:var(--primary);color:#fff;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;margin-right:10px;flex-shrink:0}.lecture-details{display:flex;flex-direction:column}.lecture-title{font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-light);margin-bottom:4px}.lecture-meta{display:flex;align-items:center;font-size:.75rem;color:#fff9}.meta-icon{margin-right:5px}.completed-indicator{background:#4caf50;color:#fff;border-radius:50%;width:20px;height:20px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.duration-indicator{font-size:.75rem;color:#fff9;padding:4px 8px;background:#ffffff1a;border-radius:4px}.delete-btn{background:#e74c3cb3;color:#fff;border:none;padding:5px 10px;border-radius:4px;cursor:pointer;font-size:.75rem;margin-top:5px;margin-left:auto;align-self:flex-end;transition:all .3s;display:block}.delete-btn:hover{background:#d32f2f}.empty-message{text-align:center;color:#ffffff80;padding:15px 0;font-size:.9rem}.lecture-main-content{flex:1;overflow-y:auto;padding:0;display:flex;flex-direction:column}.lecture-content-wrapper{display:flex;flex-direction:column}.video-container{width:100%;background:#000;max-height:var(--video-max-height)}.video-container video{width:100%;max-height:var(--video-max-height);object-fit:contain}.lecture-content{padding:20px}.lecture-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px;flex-wrap:wrap;gap:15px}.lecture-header h1{font-size:1.8rem;margin-bottom:0;color:var(--text-light);flex:1}.lecture-navigation{display:flex;gap:10px}.nav-btn{display:flex;align-items:center;gap:5px;padding:8px 15px;border-radius:6px;border:1px solid rgba(255,255,255,.1);background:#ffffff0d;color:var(--text-light);cursor:pointer;transition:all .3s}.nav-btn:hover:not(:disabled){background:#ffffff1a;transform:translateY(-2px)}.nav-btn:disabled{opacity:.5;cursor:not-allowed}.prev-btn{background:#ffffff0d}.next-btn{background:#0c9d9233;color:#fff}.lecture-description{margin-bottom:30px}.lecture-description h3{font-size:1rem;color:#fffc;font-weight:400;line-height:1.6}.post-lecture-actions{background-color:#121825b3;border-radius:8px;padding:20px;margin:20px 0;border-left:4px solid var(--primary);border:1px solid rgba(255,255,255,.05);transition:transform .3s ease,box-shadow .3s ease}.post-lecture-actions:hover{transform:translateY(-3px);box-shadow:0 8px 25px #00000040}.post-lecture-actions h4{margin-top:0;margin-bottom:15px;color:#fff;font-size:1.15rem}.action-buttons{display:flex;flex-wrap:wrap;gap:10px}.take-quiz-button{background:linear-gradient(135deg,#0ea5e9,#0284c7);color:#fff;border:none;border-radius:6px;padding:10px 16px;font-size:.95rem;text-decoration:none;transition:all .3s;box-shadow:0 4px 15px #0ea5e94d;display:flex;align-items:center;gap:8px}.take-quiz-button:hover{transform:translateY(-3px);box-shadow:0 6px 20px #0ea5e966}.next-lecture-button{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;border-radius:6px;padding:10px 16px;font-size:.95rem;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px #0c9d924d;display:flex;align-items:center;gap:8px}.next-lecture-button:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 6px 20px #0c9d9266}.next-lecture-button:disabled{opacity:.6;cursor:not-allowed}.admin-actions{margin:25px 0;display:flex;gap:10px}.create-quiz-button{display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--secondary) 0%,var(--secondary-dark) 100%);color:#fff;padding:10px 18px;border-radius:6px;text-decoration:none;font-weight:500;font-size:.95rem;transition:all .3s ease;box-shadow:0 4px 15px #f9b2334d;border:none}.create-quiz-button:hover{background:linear-gradient(135deg,var(--secondary-dark) 0%,var(--secondary) 100%);transform:translateY(-2px);box-shadow:0 6px 20px #f9b23366}.lecture-materials{padding:0 20px 20px}.section-card{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:8px;padding:20px;margin-bottom:20px;border:1px solid rgba(255,255,255,.05);box-shadow:0 4px 15px #0003}.section-title{font-size:1.2rem;margin-top:0;margin-bottom:15px;color:var(--text-light);font-weight:600;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:10px}.quiz-performance-card{display:flex;background-color:#121825b3;border-left:4px solid var(--primary);padding:20px;border-radius:8px;transition:transform .2s,box-shadow .2s;color:var(--text-light);border:1px solid rgba(255,255,255,.05);margin-bottom:20px}.quiz-performance-card:hover{transform:translateY(-3px);box-shadow:0 8px 25px #00000040}.quiz-performance-card .card-icon{display:flex;align-items:center;justify-content:center;width:50px;height:50px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);border-radius:50%;margin-right:20px;box-shadow:0 5px 15px #0c9d924d;flex-shrink:0}.quiz-performance-card .marks-icon{font-size:1.5rem;color:#fff}.quiz-performance-card .card-content{flex:1}.quiz-performance-card h4{margin:0 0 .8rem;font-size:1.1rem;color:var(--text-light)}.quiz-performance-card .marks-info{margin-top:.5rem}.quiz-performance-card .marks-total{margin:0;font-size:1rem;color:#fffc}.quiz-performance-card .marks-total strong{font-size:1.3rem;color:#fff}.quiz-performance-card .marks-progress{position:relative;height:8px;background-color:#ffffff1a;border-radius:4px;margin:.8rem 0}.quiz-performance-card .marks-progress-fill{height:100%;background:linear-gradient(to right,var(--primary),var(--primary-dark));border-radius:4px;transition:width 1s ease}.quiz-performance-card .marks-percentage{position:absolute;right:0;top:-18px;font-size:.8rem;font-weight:700;color:#fff}.quiz-performance-card .marks-detail{margin:.5rem 0 0;font-size:.9rem;color:#fff9}.lecture-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:400px;color:#ffffff80;text-align:center;padding:20px}.empty-icon{font-size:5rem;margin-top:20px;opacity:.3}.lecture-watermark{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);opacity:.03;max-width:50%;z-index:0;pointer-events:none}.lecture-watermark img{width:100%;height:auto}@media (max-width: 1200px){:root{--sidebar-width: 280px}}@media (max-width: 992px){.lecture-layout{flex-direction:column}.lecture-sidebar{width:100%;border-right:none;border-bottom:1px solid rgba(255,255,255,.05);max-height:300px}.lecture-sidebar.collapsed{max-height:60px;width:100%}.sidebar-header{padding:10px 15px}.lecture-header{flex-direction:column;align-items:flex-start}.lecture-navigation{width:100%;justify-content:space-between}.lecture-header h1{font-size:1.5rem}.section-card{padding:15px}}@media (max-width: 768px){.lecture-top-progress{flex-direction:column;align-items:flex-start;gap:10px}.course-progress-bar{width:100%;margin-right:0}.quiz-progress-pill{align-self:flex-start}.action-buttons{flex-direction:column}.take-quiz-button,.next-lecture-button{width:100%;justify-content:center}.quiz-performance-card{flex-direction:column}.quiz-performance-card .card-icon{margin-bottom:15px;margin-right:0}.content-progress{margin:15px 0;padding:15px;background:#0c9d921a;border-radius:8px;border-left:4px solid #0c9d92}.content-progress .progress-bar{width:100%;height:6px;background:#fff3;border-radius:3px;overflow:hidden;margin-bottom:8px}.content-progress .progress-fill{height:100%;background:linear-gradient(90deg,#0c9d92,#00d4aa);border-radius:3px;transition:width .3s ease}.content-progress .progress-text{color:#0c9d92;font-size:14px;font-weight:600}.no-content{display:flex;align-items:center;justify-content:center;height:300px;background:#ffffff0d;border:2px dashed rgba(255,255,255,.2);border-radius:12px;color:#a0a0a0;font-size:16px;text-align:center}.lecture-type-icon{margin-right:5px;opacity:.8}.lecture-meta{display:flex;align-items:center;gap:5px;font-size:12px;color:#888;margin-top:2px}.lecture-player{margin:20px 0;background:#1a1a2e;border-radius:12px;overflow:hidden;box-shadow:0 8px 32px #0000004d}.lecture-player video{width:100%;height:auto;display:block}.content-progress{padding:12px;margin:12px 0}.content-progress .progress-text{font-size:12px}.no-content{height:200px;font-size:14px}.lecture-player{margin:15px 0}}.lecture-type-selector{position:relative}.custom-select select{width:100%;padding:10px 40px 10px 12px;border:2px solid #ddd;border-radius:8px;background-color:#fff;font-size:14px;color:#333;appearance:none;-webkit-appearance:none;-moz-appearance:none;cursor:pointer;transition:border-color .3s ease}.custom-select .select-arrow{position:absolute;top:50%;right:12px;transform:translateY(-50%);pointer-events:none;color:#666;font-size:12px}.file-info{display:block;margin-top:5px;font-size:12px;color:#666;font-style:italic}.form-group label{display:block;margin-bottom:5px;font-weight:600;color:#333;font-size:.9rem}@media (max-width: 768px){.custom-select select{padding:8px 35px 8px 10px;font-size:13px}.custom-select .select-arrow{right:10px;font-size:11px}.file-info{font-size:11px}}.create-quiz-container{max-width:1200px;margin:0 auto;padding:2rem;background:linear-gradient(135deg,#1a2142,#0f172a);min-height:100vh;color:#fff}.quiz-form-header{text-align:center;margin-bottom:3rem;padding:2rem;background:#1a2142cc;border-radius:16px;border:1px solid rgba(59,130,246,.2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.quiz-form-header h1{font-size:2.5rem;font-weight:700;margin-bottom:.5rem;background:linear-gradient(135deg,#3b82f6,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent}.lecture-info{font-size:1.1rem;color:#fffc;margin:0}.lecture-info strong{color:#60a5fa}.quiz-form{background:#1a214299;border-radius:20px;padding:3rem;border:1px solid rgba(59,130,246,.2);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);box-shadow:0 20px 40px #0006}.form-group label{display:block;margin-bottom:.8rem;font-weight:600;color:#fff;font-size:1rem;text-transform:uppercase;letter-spacing:.5px}.form-group input,.form-group textarea,.form-group select{width:100%;padding:1rem 1.5rem;border:2px solid rgba(59,130,246,.3);background:#0f172acc;border-radius:12px;color:#fff;font-size:1rem;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 4px #3b82f633;transform:translateY(-2px)}.questions-section{margin-top:3rem}.questions-section h2{font-size:1.8rem;margin-bottom:2rem;color:#fff;text-align:center;position:relative;padding-bottom:1rem}.questions-section h2:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:100px;height:3px;background:linear-gradient(90deg,#3b82f6,#8b5cf6);border-radius:10px}.question-card{background:#0f172ae6;border-radius:16px;padding:2rem;margin-bottom:2rem;border:1px solid rgba(59,130,246,.2);box-shadow:0 10px 30px #0000004d;transition:all .3s ease}.question-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px #0006;border-color:#3b82f666}.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid rgba(59,130,246,.2)}.question-header h3{font-size:1.3rem;color:#60a5fa;margin:0;font-weight:600}.remove-question-btn{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;padding:.6rem 1.2rem;border-radius:8px;cursor:pointer;font-weight:500;transition:all .3s ease;font-size:.9rem}.remove-question-btn:hover{background:linear-gradient(135deg,#dc2626,#b91c1c);transform:translateY(-2px);box-shadow:0 5px 15px #ef444466}.question-type-selector{display:flex;gap:1rem;margin-top:.5rem}.type-option{flex:1;padding:1rem;background:#0f172acc;border:2px solid rgba(59,130,246,.3);border-radius:10px;text-align:center;cursor:pointer;transition:all .3s ease;font-weight:500;color:#fffc}.type-option:hover{background:#3b82f61a;border-color:#3b82f6;transform:translateY(-2px)}.type-option.active{background:linear-gradient(135deg,#3b82f6,#1d4ed8);border-color:#3b82f6;color:#fff;box-shadow:0 5px 15px #3b82f64d}.options-section{margin-top:1.5rem}.options-section label{font-size:1.1rem;margin-bottom:1rem;color:#60a5fa}.option-row{display:flex;align-items:center;margin-bottom:1rem;gap:1rem}.option-row input[type=radio]{width:20px;height:20px;accent-color:#3b82f6;cursor:pointer}.option-help-text{font-size:.9rem;color:#fff9;margin-top:.5rem;font-style:italic}.add-question-btn{width:100%;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;padding:1.2rem 2rem;border-radius:12px;cursor:pointer;font-weight:600;font-size:1.1rem;transition:all .3s ease;margin-top:1rem;display:flex;align-items:center;justify-content:center;gap:.5rem}.add-question-btn:hover{background:linear-gradient(135deg,#059669,#047857);transform:translateY(-3px);box-shadow:0 10px 25px #10b9814d}.submit-quiz-btn{width:100%;background:linear-gradient(135deg,#8b5cf6,#7c3aed);color:#fff;border:none;padding:1.5rem 2rem;border-radius:12px;cursor:pointer;font-weight:700;font-size:1.2rem;transition:all .3s ease;margin-top:2rem;box-shadow:0 10px 30px #8b5cf64d}.submit-quiz-btn:hover:not(:disabled){background:linear-gradient(135deg,#7c3aed,#6d28d9);transform:translateY(-3px);box-shadow:0 15px 40px #8b5cf666}.submit-quiz-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}@media (max-width: 768px){.create-quiz-container{padding:1rem}.quiz-form{padding:2rem 1.5rem}.quiz-form-header h1{font-size:2rem}.question-header{flex-direction:column;align-items:flex-start;gap:1rem}.type-option{font-size:.9rem;padding:.8rem}.option-row{flex-direction:column;align-items:flex-start}.option-row input[type=text]{width:100%;margin-top:.5rem}}.audio-player-container{width:100%;max-width:800px;margin:0 auto;background:linear-gradient(135deg,#1a1a2e,#16213e);border-radius:12px;padding:20px;box-shadow:0 8px 32px #0000004d}.audio-player{display:flex;flex-direction:column;gap:15px}.audio-controls{display:flex;justify-content:center;align-items:center;gap:15px}.control-btn,.play-pause-btn{display:flex;align-items:center;justify-content:center;border:none;border-radius:50%;background:linear-gradient(135deg,#0c9d92,#00d4aa);color:#fff;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #0c9d924d}.control-btn{width:40px;height:40px;font-size:14px}.play-pause-btn{width:60px;height:60px;font-size:20px}.control-btn:hover,.play-pause-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0c9d9266}.audio-progress-section{display:flex;align-items:center;gap:15px;width:100%}.time-display{color:#a0a0a0;font-family:Courier New,monospace;font-size:14px;min-width:45px}.progress-container{flex:1;cursor:pointer;padding:5px 0}.progress-track{width:100%;height:6px;background:#ffffff1a;border-radius:3px;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,#0c9d92,#00d4aa);border-radius:3px;transition:width .1s ease}.volume-section{display:flex;align-items:center;justify-content:center;gap:10px}.volume-btn{display:flex;align-items:center;justify-content:center;width:35px;height:35px;border:none;border-radius:50%;background:#ffffff1a;color:#a0a0a0;cursor:pointer;transition:all .3s ease}.volume-btn:hover{background:#0c9d9233;color:#0c9d92}.volume-slider{width:80px;height:4px;background:#ffffff1a;border-radius:2px;outline:none;cursor:pointer}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:#0c9d92;cursor:pointer}.volume-slider::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#0c9d92;cursor:pointer;border:none}@media (max-width: 768px){.audio-player-container{padding:15px}.audio-progress-section{gap:10px}.time-display{font-size:12px;min-width:40px}.volume-section{gap:8px}.volume-slider{width:60px}}.document-viewer{width:100%;height:80vh;background:#fff;border-radius:12px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 8px 32px #00000026;border:1px solid #e1e8ed}.document-viewer.fullscreen{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:9999;border-radius:0}.document-controls{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-bottom:1px solid #e2e8f0;min-height:60px}.document-info{display:flex;align-items:center;gap:20px}.document-type{color:#475569;font-size:14px;font-weight:600;padding:6px 12px;background:#e2e8f0;border-radius:6px}.page-controls{display:flex;align-items:center;gap:12px}.control-btn,.action-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:8px;background:#3b82f6;color:#fff;cursor:pointer;transition:all .2s ease;font-size:14px}.control-btn:disabled{background:#cbd5e1;color:#94a3b8;cursor:not-allowed}.control-btn:not(:disabled):hover,.action-btn:hover{background:#2563eb;transform:translateY(-1px);box-shadow:0 4px 12px #3b82f64d}.page-info{color:#64748b;font-size:14px;font-weight:500;min-width:120px;text-align:center}.document-actions{display:flex;gap:8px}.document-content{flex:1;position:relative;background:#fafafa;overflow:hidden}.pdf-viewer-container,.pptx-viewer-container{width:100%;height:100%;position:relative}.pdf-iframe,.pptx-iframe{border:none;background:#fff}.document-loading{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:16px;color:#64748b}.loading-spinner{width:40px;height:40px;border:3px solid #e2e8f0;border-top:3px solid #3b82f6;border-radius:50%;animation:spin 1s linear infinite}.viewer-error{display:flex;align-items:center;justify-content:center;height:100%;padding:40px;background:#f8fafc}.error-content{text-align:center;max-width:400px}.error-content h3{color:#1e293b;margin-bottom:12px;font-size:20px}.error-content p{color:#64748b;margin-bottom:24px;line-height:1.6}.error-actions{display:flex;gap:12px;justify-content:center}.error-btn{display:flex;align-items:center;gap:8px;padding:12px 20px;border:none;border-radius:8px;font-weight:500;cursor:pointer;transition:all .2s ease}.error-btn.download{background:#10b981;color:#fff}.error-btn.download:hover{background:#059669}.error-btn.external{background:#6366f1;color:#fff}.error-btn.external:hover{background:#4f46e5}.progress-indicator{padding:16px 24px;background:#f8fafc;border-top:1px solid #e2e8f0}.progress-bar{width:100%;height:6px;background:#e2e8f0;border-radius:3px;overflow:hidden;margin-bottom:12px}.progress-fill{height:100%;background:linear-gradient(90deg,#3b82f6,#1d4ed8);transition:width .3s ease;border-radius:3px}.progress-text-container{display:flex;justify-content:space-between;align-items:center}.progress-text{color:#64748b;font-size:13px;font-weight:500}.document-actions-mobile{display:none;gap:8px}.mobile-action{width:32px;height:32px;border:none;border-radius:6px;background:#e2e8f0;color:#64748b;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.mobile-action:hover{background:#cbd5e1}@media (max-width: 768px){.document-controls{padding:12px 16px;flex-direction:column;gap:12px;min-height:auto}.document-info{width:100%;justify-content:space-between}.page-controls{gap:8px}.control-btn,.action-btn{width:32px;height:32px;font-size:12px}.page-info{font-size:12px;min-width:100px}.document-actions{display:none}.document-actions-mobile{display:flex}.document-content{padding:12px}.document-viewer{height:70vh}.progress-indicator{padding:12px 16px}}@media (max-width: 480px){.document-info{flex-direction:column;gap:8px;align-items:flex-start}.error-actions{flex-direction:column;align-items:center}.error-btn{width:100%;max-width:200px}}.notes-viewer{width:100%;height:100%;display:flex;flex-direction:column;background:#f5f5f5;position:relative}.notes-viewer.no-slides{justify-content:center;align-items:center;color:#666;font-size:1.2rem}.viewer-controls{background:#fff;padding:1rem;border-bottom:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a;z-index:10}.navigation-controls{display:flex;align-items:center;gap:1rem}.playback-controls{display:flex;align-items:center;gap:.5rem}.control-btn{background:#f8f9fa;border:1px solid #ddd;padding:.75rem;border-radius:6px;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;font-size:1rem;color:#495057;min-width:44px;height:44px}.control-btn:hover:not(:disabled){background:#e9ecef;border-color:#adb5bd;transform:translateY(-1px)}.control-btn:disabled{background:#f8f9fa;color:#6c757d;cursor:not-allowed;opacity:.6}.control-btn.active{background:#007bff;color:#fff;border-color:#007bff}.slide-counter{font-weight:600;color:#495057;font-size:1rem;min-width:80px;text-align:center}.slide-display{flex:1;margin:1rem;border-radius:12px;box-shadow:0 8px 16px #0000001a;padding:3rem;position:relative;overflow:hidden;min-height:500px;display:flex;flex-direction:column;justify-content:flex-start;background:#fff}.slide-title{font-size:2.5rem;font-weight:700;margin-bottom:2rem;text-align:center;line-height:1.2;text-shadow:0 2px 4px rgba(0,0,0,.1)}.slide-content{font-size:1.3rem;line-height:1.8;flex:1;text-align:left}.slide-content h1,.slide-content h2,.slide-content h3{margin-top:1.5rem;margin-bottom:1rem}.slide-content ul,.slide-content ol{margin:1rem 0;padding-left:2rem}.slide-content li{margin-bottom:.5rem}.slide-image{border-radius:8px;box-shadow:0 4px 8px #0003;transition:transform .2s,box-shadow .2s}.slide-image:hover{transform:scale(1.02);box-shadow:0 6px 12px #0000004d}.slide-thumbnails{background:#fff;padding:1rem;border-top:1px solid #e0e0e0;display:flex;gap:.75rem;overflow-x:auto;overflow-y:hidden;max-height:120px;box-shadow:0 -2px 4px #0000001a}.thumbnail{min-width:100px;cursor:pointer;border:2px solid transparent;border-radius:8px;padding:.5rem;transition:all .2s;position:relative;background:#f8f9fa}.thumbnail:hover{border-color:#007bff;transform:translateY(-2px);box-shadow:0 4px 8px #0000001a}.thumbnail.active{border-color:#007bff;background:#e3f2fd;transform:translateY(-2px);box-shadow:0 4px 8px #007bff33}.thumbnail-preview{width:100%;height:60px;border-radius:4px;padding:.5rem;display:flex;flex-direction:column;justify-content:flex-start;font-size:.7rem;overflow:hidden;border:1px solid #ddd;background:#fff}.thumb-title{font-weight:700;margin-bottom:.2rem;font-size:.75rem;color:#333}.thumb-content{font-size:.65rem;opacity:.7;line-height:1.2;color:#666}.thumbnail-number{position:absolute;top:.2rem;right:.2rem;background:#007bff;color:#fff;font-size:.7rem;padding:.1rem .4rem;border-radius:12px;font-weight:700;box-shadow:0 2px 4px #0003}.progress-bar{height:4px;background:#e9ecef;position:relative}.progress-fill{height:100%;background:linear-gradient(90deg,#007bff,#0056b3);transition:width .3s ease;position:relative}.progress-fill:after{content:"";position:absolute;top:0;right:0;width:20px;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3));animation:shimmer 1.5s infinite}@keyframes shimmer{0%{transform:translate(-20px)}to{transform:translate(20px)}}.keyboard-hints{background:#000c;color:#fff;padding:.5rem 1rem;text-align:center;font-size:.8rem}.keyboard-hints small{opacity:.8}@media (max-width: 768px){.viewer-controls{padding:.75rem;flex-wrap:wrap;gap:.5rem}.slide-display{margin:.5rem;padding:2rem 1.5rem}.slide-title{font-size:2rem;margin-bottom:1.5rem}.slide-content{font-size:1.1rem;line-height:1.6}.slide-thumbnails{padding:.75rem;gap:.5rem}.thumbnail{min-width:80px;padding:.4rem}.thumbnail-preview{height:50px;padding:.3rem}.control-btn{padding:.6rem;min-width:40px;height:40px;font-size:.9rem}.slide-counter{font-size:.9rem;min-width:70px}.keyboard-hints{padding:.4rem .8rem;font-size:.7rem}}@media (max-width: 480px){.slide-display{padding:1.5rem 1rem}.slide-title{font-size:1.7rem}.slide-content{font-size:1rem}.viewer-controls,.slide-thumbnails{padding:.5rem}.thumbnail{min-width:70px}}@media (prefers-reduced-motion: reduce){.control-btn,.thumbnail,.slide-image,.progress-fill{transition:none}.progress-fill:after{animation:none}}@media (prefers-contrast: high){.control-btn{border-width:2px}.thumbnail{border-width:3px}.progress-bar{height:6px}}.notes-editor{width:100%;height:100vh;background:#f5f5f5;display:flex;flex-direction:column}.editor-header{background:#fff;padding:1rem 2rem;border-bottom:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px #0000001a}.editor-header h2{margin:0;color:#333;font-size:1.5rem}.editor-actions{display:flex;gap:1rem}.preview-btn{background:#007bff;color:#fff;border:none;padding:.5rem 1rem;border-radius:6px;cursor:pointer;display:flex;align-items:center;gap:.5rem;font-size:.9rem;transition:background-color .2s}.preview-btn:hover{background:#0056b3}.editor-layout{display:flex;flex:1;overflow:hidden}.slides-sidebar{width:250px;background:#fff;border-right:1px solid #e0e0e0;display:flex;flex-direction:column}.slides-header{padding:1rem;border-bottom:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center}.slides-header h3{margin:0;color:#333;font-size:1.1rem}.add-slide-btn{background:#28a745;color:#fff;border:none;padding:.5rem;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:.3rem;font-size:.8rem;transition:background-color .2s}.add-slide-btn:hover{background:#218838}.slides-list{flex:1;overflow-y:auto;padding:.5rem}.slide-thumbnail{margin-bottom:.5rem;cursor:pointer;border:2px solid transparent;border-radius:8px;padding:.5rem;transition:all .2s;position:relative}.slide-thumbnail:hover{border-color:#007bff;background:#f8f9fa}.slide-thumbnail.active{border-color:#007bff;background:#e3f2fd}.thumbnail-preview{width:100%;height:80px;border-radius:4px;padding:.5rem;display:flex;flex-direction:column;justify-content:flex-start;font-size:.7rem;overflow:hidden;border:1px solid #ddd}.thumb-title{font-weight:700;margin-bottom:.2rem;font-size:.8rem}.thumb-content{font-size:.7rem;opacity:.7;line-height:1.2}.slide-number{position:absolute;top:.2rem;right:.2rem;background:#007bff;color:#fff;font-size:.7rem;padding:.1rem .3rem;border-radius:10px;font-weight:700}.main-editor{flex:1;display:flex;flex-direction:column;background:#f9f9f9}.editor-toolbar{background:#fff;padding:1rem;border-bottom:1px solid #e0e0e0;display:flex;gap:2rem;align-items:center;flex-wrap:wrap}.toolbar-section{display:flex;align-items:center;gap:.5rem}.toolbar-section label{font-size:.9rem;color:#555;font-weight:500}.color-picker{width:40px;height:30px;border:1px solid #ddd;border-radius:4px;cursor:pointer;padding:0}.format-btn{background:#f8f9fa;border:1px solid #ddd;padding:.5rem;border-radius:4px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:.3rem;font-size:.9rem}.format-btn:hover{background:#e9ecef;border-color:#adb5bd}.delete-btn{background:#dc3545;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:.3rem;font-size:.9rem;transition:background-color .2s}.delete-btn:hover:not(:disabled){background:#c82333}.delete-btn:disabled{background:#6c757d;cursor:not-allowed}.slide-canvas{flex:1;margin:1rem;border-radius:8px;box-shadow:0 4px 8px #0000001a;padding:2rem;position:relative;overflow:hidden;min-height:500px}.title-input{width:100%;background:transparent;border:none;font-size:2rem;font-weight:700;margin-bottom:1rem;padding:.5rem;border-radius:4px;transition:background-color .2s}.title-input:focus{outline:none;background:#ffffff1a}.content-editor{min-height:200px;padding:1rem;border-radius:4px;font-size:1.1rem;line-height:1.6;transition:background-color .2s;cursor:text}.content-editor:focus{outline:none;background:#ffffff1a}.content-editor:empty:before{content:attr(placeholder);color:#00000080;font-style:italic}.image-container{border:2px dashed transparent;transition:border-color .2s;cursor:move}.image-container:hover{border-color:#007bff}.slide-image{width:100%;height:100%;object-fit:cover;border-radius:4px;cursor:grab}.slide-image:active{cursor:grabbing}.delete-image-btn{position:absolute;top:-10px;right:-10px;background:#dc3545;color:#fff;border:none;width:24px;height:24px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.7rem;opacity:0;transition:opacity .2s}.image-container:hover .delete-image-btn{opacity:1}.resize-handles{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none}.resize-handle{position:absolute;background:#007bff;pointer-events:all;cursor:se-resize}.resize-handle.se{bottom:-4px;right:-4px;width:8px;height:8px;border-radius:50%}.slide-navigation{background:#fff;padding:1rem;border-top:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center}.nav-btn{background:#007bff;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:.5rem;font-size:.9rem;transition:background-color .2s}.nav-btn:hover:not(:disabled){background:#0056b3}.nav-btn:disabled{background:#6c757d;cursor:not-allowed}.slide-counter{font-weight:500;color:#555;font-size:.9rem}.notes-preview-mode{width:100%;height:100vh;background:#000;display:flex;flex-direction:column}.preview-header{background:#000c;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;position:fixed;top:0;left:0;right:0;z-index:1000}.exit-preview-btn{background:#dc3545;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:.5rem;font-size:.9rem}.preview-navigation{display:flex;gap:1rem}.preview-slide{flex:1;margin-top:80px;padding:4rem;position:relative;display:flex;flex-direction:column;justify-content:flex-start;overflow:hidden}.preview-slide .slide-title{font-size:3rem;font-weight:700;margin-bottom:2rem;text-align:center}.preview-slide .slide-content{font-size:1.5rem;line-height:1.8;flex:1}.preview-slide .slide-image{border-radius:8px;box-shadow:0 4px 8px #0000004d}@media (max-width: 768px){.editor-layout{flex-direction:column}.slides-sidebar{width:100%;height:200px}.slides-list{display:flex;gap:.5rem;overflow-x:auto}.slide-thumbnail{min-width:120px;margin-bottom:0}.editor-toolbar{flex-wrap:wrap;gap:1rem}.slide-canvas{margin:.5rem;padding:1rem}.title-input{font-size:1.5rem}.content-editor{font-size:1rem}.preview-slide{padding:2rem 1rem}.preview-slide .slide-title{font-size:2rem}.preview-slide .slide-content{font-size:1.2rem}}.announcements-container{background-color:#02062b;border-radius:10px;padding:20px;box-shadow:0 4px 6px #0000000d;margin-bottom:24px}.announcements-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid #051637}.announcements-header .title-row{display:flex;align-items:center}.announcements-header h2{margin:0;font-size:1.5rem;font-weight:600;color:#1e3a8a}.announcements-header .icon{color:#3b82f6;font-size:1.5rem;margin-right:10px}.create-announcement-btn{background-color:#06152c;color:#363535;border:none;border-radius:6px;padding:8px 16px;font-size:.9rem;font-weight:500;cursor:pointer;transition:background-color .2s}.create-announcement-btn:hover{background-color:#2563eb}.announcements-list{display:flex;flex-direction:column;gap:16px}.announcement-card{background-color:#f9fafb;border-left:4px solid #3b82f6;border-radius:6px;padding:16px;position:relative;transition:transform .2s,box-shadow .2s}.announcement-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000014}.announcement-card.important{border-left-color:#ef4444;background-color:#07042e}.important-badge{position:absolute;top:10px;right:10px;background-color:#ef4444;color:#fff;font-size:.75rem;padding:4px 8px;border-radius:20px;display:flex;align-items:center;gap:4px}.announcement-header{display:flex;margin-bottom:12px}.announcement-icon{background-color:#e0e7ff;color:#4f46e5;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-right:12px}.announcement-icon svg{font-size:1.2rem}.announcement-title-area{flex:1}.announcement-title{margin:0 0 4px;font-size:1.1rem;color:#1f2937}.announcement-date{font-size:.8rem;color:#6b7280}.announcement-content{margin-left:52px;color:#4b5563;font-size:.95rem;line-height:1.5;white-space:pre-line}.announcement-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:12px}.edit-btn,.delete-btn,.save-btn,.cancel-btn{display:flex;align-items:center;gap:4px;padding:6px 12px;border:none;border-radius:4px;font-size:.85rem;cursor:pointer;transition:background-color .2s}.edit-btn{background-color:#e5e7eb;color:#4b5563}.edit-btn:hover{background-color:#d1d5db}.delete-btn{background-color:#fee2e2;color:#dc2626}.delete-btn:hover:not(:disabled){background-color:#fecaca}.delete-btn:disabled{cursor:not-allowed;opacity:.7}.save-btn{background-color:#10b981;color:#fff}.save-btn:hover{background-color:#059669}.cancel-btn{background-color:#e5e7eb;color:#4b5563}.cancel-btn:hover{background-color:#d1d5db}.announcement-edit-form{flex:1}.edit-title{width:100%;padding:8px;border:1px solid #d1d5db;border-radius:4px;font-size:1rem;margin-bottom:8px}.edit-content{width:100%;padding:12px;border:1px solid #d1d5db;border-radius:4px;font-size:.95rem;line-height:1.5;resize:vertical;min-height:100px}.important-checkbox{display:flex;align-items:center;gap:6px;font-size:.85rem;color:#4b5563}.create-announcement-container{background-color:#f3f4f6;border-radius:8px;padding:16px;margin-bottom:20px}.create-announcement-container h3{font-size:1.1rem;margin-top:0;margin-bottom:16px;color:#1f2937}.announcement-form .form-group{margin-bottom:16px}.announcement-form label{display:block;margin-bottom:6px;font-size:.9rem;font-weight:500;color:#4b5563}.announcement-form input[type=text],.announcement-form textarea{width:100%;padding:10px;font-size:.95rem;border:1px solid #d1d5db;border-radius:4px;background-color:#fff}.announcement-form .form-check{display:flex;align-items:center;gap:8px;margin-bottom:16px}.announcement-form .form-check label{margin-bottom:0}.submit-announcement-btn{background-color:#3b82f6;color:#fff;border:none;border-radius:6px;padding:10px 16px;font-size:.95rem;font-weight:500;cursor:pointer;transition:background-color .2s;display:block;width:100%}.submit-announcement-btn:hover:not(:disabled){background-color:#2563eb}.submit-announcement-btn:disabled{opacity:.7;cursor:not-allowed}.loading-announcements,.error-message,.no-announcements{padding:20px;text-align:center;color:#6b7280;border-radius:6px}.loading-announcements{background-color:#f3f4f6}.error-message{background-color:#fee2e2;color:#b91c1c}.no-announcements{background-color:#f3f4f6;display:flex;flex-direction:column;align-items:center;gap:8px}.no-announcements svg{font-size:2rem;color:#9ca3af}@media (max-width: 768px){.announcements-header{flex-direction:column;align-items:flex-start;gap:12px}.create-announcement-btn{width:100%}.announcement-content{margin-left:0;margin-top:12px}}.dashboard-admin{display:flex;min-height:100vh;width:100%;color:var(--text-light);background-color:var(--background)}.layout-container{display:flex;width:100%;min-height:100vh;position:relative}.sidebar{width:auto;height:auto;position:sticky;top:0;left:0;background:#121825f2;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border-right:1px solid rgba(255,255,255,.1);padding:20px 0;transition:all .3s ease;z-index:100;display:flex;flex-direction:column;box-shadow:0 0 20px #0000004d}.sidebar-header{display:flex;align-items:center;justify-content:center;padding:15px 20px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:20px}.sidebar-title{background:linear-gradient(90deg,#9b87f5,#7e69ab);-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-size:1.5rem;font-weight:700;letter-spacing:.5px}.toggle-button{position:absolute;right:-12px;top:80px;width:24px;height:24px;background:#9b87f5;color:#fff;display:flex;align-items:center;justify-content:center;border-radius:50%;cursor:pointer;box-shadow:0 0 10px #0003;z-index:101;transition:all .3s ease}.toggle-button:hover{transform:scale(1.1)}.sidebar-menu{list-style:none;padding:0 15px;margin:0;flex:1}.sidebar-item{display:flex;align-items:center;gap:12px;padding:12px 15px;text-decoration:none;color:#ffffffb3;border-radius:8px;transition:all .3s ease;margin-bottom:5px;position:relative;overflow:hidden}.sidebar-item:hover{color:#fff;background:#9b87f526;transform:translate(5px)}.sidebar-item.active{background:#9b87f533;color:#9b87f5;font-weight:600;box-shadow:0 3px 10px #0003}.sidebar-item.active:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);height:70%;width:3px;background:linear-gradient(to bottom,#9b87f5,#7e69ab);border-radius:0 5px 5px 0}.sidebar-icon{font-size:1.2rem;min-width:24px;display:flex;align-items:center;justify-content:center;transition:transform .3s ease}.sidebar-item:hover .sidebar-icon{transform:scale(1.2)}.notification-badge{position:absolute;top:10px;right:10px;background:#ef4444;color:#fff;font-size:.7rem;padding:1px 6px;border-radius:10px;font-weight:500;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #ef4444b3}70%{box-shadow:0 0 0 10px #ef444400}to{box-shadow:0 0 #ef444400}}.sidebar-footer{padding:15px;border-top:1px solid rgba(255,255,255,.1);margin-top:20px;font-size:.9rem;color:#ffffff80;text-align:center}.sidebar.collapsed{width:80px}.sidebar.collapsed .sidebar-item{justify-content:center;padding:12px}.sidebar.collapsed .sidebar-icon{font-size:22px;margin-right:0}.sidebar.collapsed .notification-badge{top:5px;right:5px}.admin-card{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;border:1px solid var(--border);box-shadow:0 4px 15px #00000026;padding:20px;margin-bottom:20px;transition:all .3s ease}.admin-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px #0003}.admin-card h2{font-size:1.5rem;color:var(--primary);margin-bottom:15px;padding-bottom:10px;border-bottom:1px solid var(--border)}.admin-search{background:#121825b3;border:1px solid var(--border);border-radius:8px;padding:10px 15px;color:var(--text-light);width:100%;max-width:300px}.admin-search:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #0c9d9233}.admin-btn{background:linear-gradient(135deg,#9b87f5,#7e69ab);color:#fff;border:none;border-radius:8px;padding:10px 20px;font-weight:500;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;gap:8px;box-shadow:0 4px 15px #9b87f54d}.admin-btn:hover{transform:translateY(-3px);box-shadow:0 6px 20px #9b87f566}.admin-btn.secondary{background:linear-gradient(135deg,var(--secondary) 0%,var(--secondary-dark) 100%);box-shadow:0 4px 15px #f9b23333}.admin-btn.secondary:hover{box-shadow:0 6px 20px #f9b2334d}.admin-btn.danger{background:linear-gradient(135deg,#e74c3c,#c0392b);box-shadow:0 4px 15px #e74c3c33}.admin-btn.danger:hover{box-shadow:0 6px 20px #e74c3c4d}.admin-table{width:100%;border-collapse:collapse;margin-top:20px}.admin-table th{background-color:#121825b3;color:var(--text-light);padding:12px 15px;text-align:left;font-weight:600;border-bottom:1px solid var(--border)}.admin-table td{padding:12px 15px;border-bottom:1px solid var(--border);color:var(--text-light)}.admin-table tr:hover td{background-color:#0c9d920d}@media (max-width: 992px){.sidebar{position:fixed;transform:translate(-100%);box-shadow:5px 0 15px #0003;z-index:1000}.sidebar.open{transform:translate(0)}.toggle-sidebar{opacity:1;visibility:visible}.content{margin-left:0;width:100%}}@media (max-width: 768px){.content,.admin-card{padding:15px}.admin-btn{padding:8px 15px;font-size:.9rem}.admin-table th,.admin-table td{padding:10px 12px;font-size:.9rem}}.main-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:30px}.box{background:linear-gradient(135deg,#0c9d9233,#087f7633);border-radius:10px;padding:25px;color:#fff;box-shadow:0 5px 15px #0003;transition:all .3s ease;position:relative;overflow:hidden;border:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.box:hover{transform:translateY(-5px);box-shadow:0 8px 25px #0000004d}.box .stat-icon{position:absolute;top:20px;right:20px;font-size:48px;opacity:.2}.box .stat-label{font-size:14px;opacity:.8;margin-bottom:8px;text-transform:uppercase;letter-spacing:1px}.box .stat-value{font-size:36px;font-weight:700;margin-bottom:5px}.box .stat-change{font-size:12px;display:flex;align-items:center}.box .stat-change svg{margin-right:5px}.box .stat-change.positive{color:#a3ffb0}.box .stat-change.negative{color:#ffa3a3}.box:nth-child(2){background:linear-gradient(135deg,#f9b23333,#e29a2033)}.box:nth-child(3){background:linear-gradient(135deg,#667eea33,#764ba233)}.box:nth-child(4){background:linear-gradient(135deg,#ff9a9e33,#fad0c433)}.dashboard-charts{display:flex;flex-direction:column;gap:20px;margin-bottom:30px;flex:2}.dashboard-overview-row{display:grid;grid-template-columns:2fr 1fr;gap:20px;margin-bottom:30px}@media (max-width: 992px){.dashboard-overview-row{grid-template-columns:1fr}}.chart-card{background:#1a2135b3;border-radius:10px;box-shadow:0 2px 10px #0003;padding:20px;border:1px solid var(--border);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.chart-card .chart-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.chart-card .chart-header h3{font-size:18px;color:var(--text-light)}.chart-card .chart-header .period-selector{display:flex;gap:10px}.chart-card .chart-header .period-selector button{background:#ffffff1a;border:none;padding:5px 10px;font-size:14px;color:var(--text-light);cursor:pointer;border-radius:5px;border:1px solid transparent}.chart-card .chart-header .period-selector button.active{background-color:var(--primary);color:#fff}.chart-card .chart-content{height:300px;display:flex;align-items:center;justify-content:center;color:var(--text-light)}.chart-card .chart-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;opacity:.6}.pending-payments-panel{background:#1a2135b3;border-radius:10px;box-shadow:0 2px 10px #0003;padding:20px;border:1px solid var(--border);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.pending-payments-panel h3{font-size:18px;color:var(--text-light);margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1)}.pending-payments-panel .pending-payments-list{display:flex;flex-direction:column;gap:15px;max-height:300px;padding-right:5px}.pending-payments-panel .pending-payments-list::-webkit-scrollbar{width:5px}.pending-payments-panel .pending-payments-list::-webkit-scrollbar-thumb{background-color:#ffffff1a;border-radius:10px}.pending-payments-panel .pending-payments-list::-webkit-scrollbar-track{background-color:#0000001a;border-radius:10px}.pending-payments-panel .payment-request-item{background:#12182580;padding:15px;border-radius:8px;display:flex;justify-content:space-between;align-items:center;border:1px solid rgba(255,255,255,.05);transition:transform .2s}.pending-payments-panel .payment-request-item:hover{transform:translateY(-2px);background:#121825b3}.pending-payments-panel .payment-request-item .payment-request-info .payment-student{font-weight:500;margin-bottom:5px;color:#c1b6e0}.pending-payments-panel .payment-request-item .payment-request-info .payment-course{color:#ffffffb3;font-size:.9rem}.pending-payments-panel .payment-request-item .payment-request-info .payment-date{font-size:.8rem;color:#ffffff80;display:flex;align-items:center;gap:5px;margin-top:5px}.pending-payments-panel .payment-request-item .payment-request-info .label{color:#ffffff80;margin-right:5px}.pending-payments-panel .payment-request-item .payment-actions .approve-btn{display:flex;align-items:center;gap:5px;background:linear-gradient(135deg,#0c9d9233,#087f7633);color:#a3ffb0;border:1px solid rgba(12,157,146,.4);border-radius:5px;padding:8px 15px;font-size:.85rem;cursor:pointer;transition:all .2s}.pending-payments-panel .payment-request-item .payment-actions .approve-btn:hover{background:linear-gradient(135deg,#0c9d9266,#087f7666);transform:translateY(-2px)}.pending-payments-panel .no-payments{text-align:center;padding:30px 0;color:#ffffff80}.pending-payments-panel .view-all-link{display:block;text-align:center;margin-top:15px;color:var(--secondary);font-size:.9rem;text-decoration:none}.pending-payments-panel .view-all-link:hover{text-decoration:underline}.activity-card{background:#1a2135b3;border-radius:10px;box-shadow:0 2px 10px #0003;padding:20px;border:1px solid var(--border);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.activity-card h3{font-size:18px;color:var(--text-light);margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.1)}.activity-card .activity-list{max-height:300px}.activity-card .activity-list .activity-item{display:flex;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.05)}.activity-card .activity-list .activity-item:last-child{border-bottom:none}.activity-card .activity-list .activity-item .activity-icon{width:40px;height:40px;border-radius:50%;background-color:#0c9d9233;color:#c1b6e0;display:flex;align-items:center;justify-content:center;margin-right:15px;flex-shrink:0}.activity-card .activity-list .activity-item .activity-icon.warning{background-color:#f9b23333;color:var(--secondary)}.activity-card .activity-list .activity-item .activity-icon.danger{background-color:#ef444433;color:#ef4444}.activity-card .activity-list .activity-item .activity-content{flex:1}.activity-card .activity-list .activity-item .activity-content .activity-title{font-size:14px;color:var(--text-light);margin-bottom:5px;font-weight:500}.activity-card .activity-list .activity-item .activity-content .activity-time{font-size:12px;color:#ffffff80}.admin-dashboard-container h1.dashboard-title{font-size:2rem;margin-bottom:1.5rem;color:#c1b6e0;padding-bottom:.5rem;border-bottom:1px solid var(--border);position:relative}.admin-dashboard-container h1.dashboard-title:after{content:"";position:absolute;bottom:-1px;left:0;width:80px;height:3px;background:linear-gradient(90deg,var(--primary) 0%,rgba(118,75,162,.3) 100%);border-radius:10px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-box{background:#1a2135b3;border-radius:10px;padding:1.5rem;display:flex;align-items:center;box-shadow:0 4px 15px #0003;border:1px solid var(--border);transition:transform .3s ease}.stat-box:hover{transform:translateY(-5px)}.stat-box .stat-icon{width:3rem;height:3rem;background:linear-gradient(135deg,var(--primary) 0%,rgb(162,162,235) 100%);border-radius:10px;display:flex;align-items:center;justify-content:center;margin-right:1.2rem;color:#fff;font-size:1.5rem}.stat-box .stat-content{flex:1}.stat-box .stat-content h3{font-size:.9rem;color:var(--text-light);margin-bottom:.3rem;opacity:.8}.stat-box .stat-content p{font-size:1.8rem;font-weight:700;margin:0;color:#fff;background:linear-gradient(90deg,#fff,#c1b6e0);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.admin-actions-container{margin-top:2.5rem}.admin-actions-container h2{font-size:1.5rem;color:#c1b6e0;margin-bottom:1.5rem;position:relative;display:inline-block;padding-bottom:8px}.admin-actions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:2.5rem}.action-card{background:#1a2135b3;border-radius:10px;padding:1.5rem;text-decoration:none;display:flex;flex-direction:column;box-shadow:0 4px 15px #0003;border:1px solid var(--border);transition:all .3s ease;position:relative;overflow:hidden}.action-card:hover{transform:translateY(-5px);border-color:var(--primary)}.action-card:hover .action-icon{background:var(--primary);color:#fff}.action-card:hover:after{transform:translate(100%)}.action-card:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.05),transparent);transition:transform .8s}.action-card .action-icon{width:3rem;height:3rem;border-radius:10px;background:#0c9d9226;display:flex;align-items:center;justify-content:center;margin-bottom:1.2rem;color:#c1b6e0;font-size:1.5rem;transition:all .3s ease}.action-card h3{font-size:1.2rem;color:var(--text-light);margin-bottom:.5rem}.action-card p{color:#fff9;margin-bottom:1.2rem;font-size:.9rem;line-height:1.5}.action-card .sub-links{margin-top:auto;display:flex;flex-direction:column;gap:.5rem}.action-card .sub-links a{color:#c1b6e0;font-size:.9rem;text-decoration:none;transition:color .2s ease}.action-card .sub-links a:hover{color:var(--secondary)}.action-card .badge{position:absolute;top:15px;right:15px;background:#ef444433;color:#ffa3a3;padding:3px 8px;font-size:.7rem;border-radius:10px;font-weight:500;border:1px solid rgba(239,68,68,.4)}.recent-submissions-container{background:#1a2135b3;border-radius:10px;padding:1.5rem;box-shadow:0 4px 15px #0003;border:1px solid var(--border);margin-bottom:2rem}.recent-submissions-container .submissions-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.2rem}.recent-submissions-container .submissions-header h2{font-size:1.5rem;color:#c1b6e0;margin:0}.recent-submissions-container .submissions-header .view-all-link{color:var(--secondary);text-decoration:none;font-size:.9rem;transition:color .2s ease;display:flex;align-items:center}.recent-submissions-container .submissions-header .view-all-link:hover{color:var(--secondary-dark)}.recent-submissions-container .submissions-list{color:var(--text-light)}.recent-submissions-container .submissions-list .submissions-table{width:100%;border-collapse:collapse}.recent-submissions-container .submissions-list .submissions-table th,.recent-submissions-container .submissions-list .submissions-table td{padding:12px 15px;text-align:left;border-bottom:1px solid rgba(255,255,255,.05)}.recent-submissions-container .submissions-list .submissions-table th{background:#121825b3;color:#fffc;font-weight:500;font-size:.9rem}.recent-submissions-container .submissions-list .submissions-table tr:hover td{background:#12182580}.recent-submissions-container .submissions-list .submissions-table .score{font-weight:500;color:var(--secondary)}.recent-submissions-container .submissions-list .submissions-table .status{display:inline-block;padding:3px 8px;border-radius:20px;font-size:.8rem;font-weight:500}.recent-submissions-container .submissions-list .submissions-table .status.pending{background:#f9b23333;color:var(--secondary);border:1px solid rgba(249,178,51,.4)}.recent-submissions-container .submissions-list .submissions-table .status.graded{background:#0c9d9233;color:#a3ffb0;border:1px solid rgba(12,157,146,.4)}.recent-submissions-container .submissions-list .no-submissions{text-align:center;padding:30px 0;color:#ffffff80}@media (max-width: 768px){.stats-grid{grid-template-columns:repeat(auto-fit,minmax(100%,1fr))}.admin-actions-grid{grid-template-columns:1fr}.submissions-table{display:block}.dashboard-overview-row{grid-template-columns:1fr}}.admin-courses{display:grid;grid-template-columns:3fr 2fr;gap:30px;color:var(--text-light)}.admin-courses .left .course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.admin-courses .left .course-filters{margin-bottom:20px;display:flex;flex-wrap:wrap;gap:10px}.admin-courses .left .course-filters .filter{padding:8px 15px;background-color:#121825b3;border:1px solid var(--border);border-radius:30px;font-size:14px;color:var(--text-light);cursor:pointer;transition:all .3s ease}.admin-courses .left .course-filters .filter:hover,.admin-courses .left .course-filters .filter.active{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border-color:transparent;transform:translateY(-2px);box-shadow:0 4px 10px #0c9d9233}.admin-courses .left .course-filters .search-bar{flex:1;min-width:200px;position:relative}.admin-courses .left .course-filters .search-bar input{width:100%;padding:8px 15px 8px 40px;border:1px solid var(--border);background:#121825b3;color:var(--text-light);border-radius:30px;font-size:14px}.admin-courses .left .course-filters .search-bar input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #0c9d9233}.admin-courses .left .course-filters .search-bar .search-icon{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:#ffffff80}.admin-courses .right .course-form{background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:25px;border-radius:10px;box-shadow:0 4px 15px #00000026;border:1px solid var(--border)}.admin-courses .right .course-form h2{font-size:20px;color:var(--primary);margin-bottom:20px;padding-bottom:15px;border-bottom:1px solid var(--border)}.admin-courses .right .course-form form label{display:block;margin-bottom:8px;font-size:14px;color:var(--text-light);font-weight:500}.admin-courses .right .course-form form input,.admin-courses .right .course-form form select,.admin-courses .right .course-form form textarea{width:100%;padding:12px 15px;margin-bottom:20px;border:1px solid var(--border);background:#121825b3;color:var(--text-light);border-radius:8px;font-size:14px}.admin-courses .right .course-form form input:focus,.admin-courses .right .course-form form select:focus,.admin-courses .right .course-form form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #0c9d9233}.admin-courses .right .course-form form textarea{min-height:100px;resize:vertical}.admin-courses .right .course-form form select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 15px center;background-size:16px}.admin-courses .right .course-form form .image-preview{width:100%;margin-top:10px;border-radius:8px;overflow:hidden;margin-bottom:20px}.admin-courses .right .course-form form .image-preview img{width:100%;height:auto;display:block}.admin-courses .right .course-form form .file-input{padding:10px 0}.admin-courses .right .course-form form .file-input::file-selector-button{padding:8px 16px;border-radius:6px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;cursor:pointer;margin-right:15px;transition:all .3s ease}.admin-courses .right .course-form form .file-input::file-selector-button:hover{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%);box-shadow:0 4px 10px #0c9d9233}.admin-courses .right .course-form form button{width:100%;padding:12px;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 4px 10px #0c9d9233}.admin-courses .right .course-form form button:hover{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 100%);transform:translateY(-2px);box-shadow:0 6px 15px #0c9d924d}.admin-courses .right .course-form form button:disabled{background:#fff3;cursor:not-allowed;box-shadow:none;transform:none}.admin-courses .right .course-form form button svg{animation:spin 1s linear infinite}@media (max-width: 992px){.admin-courses{grid-template-columns:1fr}.admin-courses .left .course-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}}@media (max-width: 768px){.admin-courses{gap:20px}.admin-courses .left .course-filters{flex-direction:column;align-items:flex-start}.admin-courses .left .course-filters .search-bar{width:100%}.admin-courses .left .course-filters .filter-list{display:flex;overflow-x:auto;width:100%;padding-bottom:10px}.admin-courses .right .course-form{padding:15px}}.users-page{padding:1.5rem}.users-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.users-header h1{font-size:1.8rem;color:#fff;margin:0}.search-bar{display:flex;align-items:center;background:#1e1e2db3;border-radius:4px;padding:.5rem;width:300px}.search-bar input{flex:1;background:transparent;border:none;padding:.5rem;color:#fff}.search-bar input::placeholder{color:#888}.search-bar button{background:transparent;border:none;color:#888;cursor:pointer;transition:color .2s}.search-bar button:hover{color:#fff}.users-table-container{margin-top:1rem;overflow-x:auto;background:#1e1e2d80;border-radius:8px;box-shadow:0 4px 15px #0003}.users{width:100%;border-collapse:collapse}.users th,.users td{padding:1rem;text-align:left;border-bottom:1px solid rgba(255,255,255,.1)}.users th{background:#191923b3;color:#fff}.users th:first-child{border-top-left-radius:8px}.users th:last-child{border-top-right-radius:8px}.users tr:last-child td{border-bottom:none}.users tr:hover{background:#28283cb3}.user-role{display:inline-flex;align-items:center;padding:.25rem .75rem;border-radius:12px;font-size:.8rem;font-weight:600}.user-role.user{background-color:#1976d233;color:#64b5f6}.user-role.admin{background-color:#ff980033;color:#ffb74d}.user-role.instructor{background-color:#4caf5033;color:#81c784}.user-role.superadmin{background-color:#d32f2f33;color:#e57373}.common-btn{padding:.5rem 1rem;background-color:#385ea7;border:none;border-radius:4px;color:#fff;cursor:pointer;transition:background .2s}.common-btn:hover{background-color:#4d77c5}.action-buttons{display:flex;gap:.5rem}.action-buttons button{width:32px;height:32px;border:none;border-radius:4px;display:flex;justify-content:center;align-items:center;cursor:pointer;transition:all .2s;background-color:#283c5a;color:#b1b1b1}.action-buttons button:hover,.action-buttons button.active{background-color:#385ea7;color:#fff}.action-buttons button.delete{background-color:#dc35454d;color:#f77}.action-buttons button.delete:hover{background-color:#dc354599;color:#fff}.action-buttons button.assign{background-color:#28a7454d;color:#7d7}.action-buttons button.assign:hover{background-color:#28a74599;color:#fff}.action-buttons button.role-manage{background-color:#673ab74d;color:#ba68c8}.action-buttons button.role-manage:hover{background-color:#673ab799;color:#fff}.assign-btn{padding:.5rem 1rem;background-color:#28a745b3;border:none;border-radius:4px;color:#fff;cursor:pointer;transition:background .2s}.assign-btn:hover{background-color:#28a745e6}.course-selection{max-height:300px;overflow-y:auto;border:1px solid rgba(255,255,255,.1);border-radius:4px;padding:1rem;background:#19192380}.course-checkbox{display:flex;align-items:center;margin-bottom:.75rem;padding:.5rem;border-radius:4px;transition:background .2s}.course-checkbox:hover{background:#28283c80}.course-checkbox input[type=checkbox]{margin-right:.75rem;width:16px;height:16px;accent-color:#385ea7}.course-checkbox label{color:#b1b1b1;cursor:pointer;flex:1;margin-bottom:0}.course-checkbox input[type=checkbox]:checked+label{color:#fff;font-weight:500}.modal-content .form-group:last-of-type{margin-bottom:1.5rem}.modal-content select{width:100%;padding:.75rem;border-radius:4px;background-color:#191923b3;border:1px solid rgba(255,255,255,.1);color:#fff;font-size:.9rem}.modal-content select:focus{outline:none;border-color:#385ea7;box-shadow:0 0 0 2px #385ea733}.modal-content select option{background-color:#1e1e2d;color:#fff;padding:.5rem}.users tbody tr td .user-name-container{font-weight:500}.users tbody tr:has(.admin-diamond-icon){background:#3b82f60d}.users tbody tr:has(.admin-diamond-icon):hover{background:#3b82f61a}.course-selection.loading{display:flex;justify-content:center;align-items:center;min-height:100px;color:#b1b1b1}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background-color:#1e1e2d;padding:2rem;border-radius:8px;width:100%;max-width:500px;box-shadow:0 10px 25px #00000080}.modal-content h2{margin-top:0;color:#fff;font-size:1.5rem;margin-bottom:1rem}.modal-content p{margin-bottom:1.5rem;color:#b1b1b1}.modal-content .form-group{margin-bottom:1.5rem}.modal-content label{display:block;margin-bottom:.5rem;color:#b1b1b1}.modal-content select{width:100%;padding:.75rem;border-radius:4px;background-color:#191923b3;border:1px solid rgba(255,255,255,.1);color:#fff}.modal-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:1.5rem}.modal-actions button{padding:.75rem 1.5rem;border-radius:4px;border:none;cursor:pointer;font-weight:600}.modal-actions .cancel-btn{background-color:#6c757d33;color:#b1b1b1}.modal-actions .cancel-btn:hover{background-color:#6c757d66;color:#fff}.modal-actions .assign-btn{background-color:#28a745b3;color:#fff}.modal-actions .assign-btn:hover{background-color:#28a745e6}.modal-actions .assign-btn:disabled{background-color:#28a7454d;cursor:not-allowed}@media (max-width: 768px){.users-header{flex-direction:column;align-items:flex-start}.search-bar{width:100%;margin-top:1rem}.action-buttons{flex-direction:column;gap:.25rem}.action-buttons button{width:100%;height:auto;padding:.5rem;font-size:.8rem}.course-selection{max-height:200px}.modal-content{width:95%;padding:1rem}}.admin-lectures{padding:2rem;color:var(--text-light)}.lectures-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}.lectures-header h1{font-size:2rem;color:#9b87f5;position:relative;padding-bottom:8px}.lectures-header h1:after{content:"";position:absolute;bottom:0;left:0;width:60px;height:3px;background:linear-gradient(90deg,#9b87f5,#7e69ab);border-radius:3px}.search-bar{flex:1;max-width:350px;position:relative}.search-bar input{width:100%;padding:.75rem 1rem .75rem 2.5rem;border:1px solid var(--border);background:#121825b3;color:var(--text-light);border-radius:8px;font-size:1rem;transition:all .3s ease;box-shadow:0 4px 10px #0000001a}.search-icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:#ffffff80;font-size:.9rem;pointer-events:none}.course-header{display:flex;justify-content:space-between;align-items:center;padding:1.25rem;background:#121825b3;cursor:pointer;transition:background .3s ease}.course-header:hover{background:#9b87f51a}.lecture-count{font-size:.9rem;color:#fff9;display:flex;align-items:center;gap:.5rem}.course-actions{display:flex;align-items:center;gap:1rem}.add-lecture-btn{display:flex;align-items:center;gap:.5rem;background:linear-gradient(135deg,#9b87f533,#7e69ab33);color:#9b87f5;border:1px solid rgba(155,135,245,.3);padding:.6rem 1rem;border-radius:8px;font-size:.9rem;cursor:pointer;transition:all .3s ease}.add-lecture-btn:hover{background:linear-gradient(135deg,#9b87f54d,#7e69ab4d);transform:translateY(-2px)}.expand-icon{display:flex;align-items:center;font-size:1.25rem;color:var(--text-light);transition:transform .3s ease;width:30px;height:30px;justify-content:center;border-radius:50%;background:#ffffff0d}.lectures-container{padding:0 1.5rem 1.5rem;overflow:hidden}.loading-lectures,.no-lectures{text-align:center;padding:2rem;color:#fff9;background:#12182580;border-radius:8px;margin-top:1rem;display:flex;flex-direction:column;align-items:center;gap:1rem}.lectures-table{width:100%;border-collapse:collapse;margin-top:1rem}.lectures-table th,.lectures-table td{padding:1rem;text-align:left;border-bottom:1px solid rgba(255,255,255,.1)}.lectures-table th{background-color:#121825b3;font-weight:600;color:var(--text-light);position:relative}.lectures-table th:after{content:"";position:absolute;bottom:0;left:0;width:100%;height:1px;background:linear-gradient(90deg,#9b87f580,#7e69ab0d)}.lectures-table tr:hover td{background-color:#9b87f50d}.lecture-actions{display:flex;gap:.5rem;align-items:center}.quiz-btn{display:flex;align-items:center;gap:.5rem;padding:.6rem 1rem;background:#9b87f533;color:#9b87f5;border:1px solid rgba(155,135,245,.3);border-radius:8px;font-size:.85rem;cursor:pointer;transition:all .3s ease;white-space:nowrap}.quiz-btn:hover{background:#9b87f54d;transform:translateY(-2px)}.lecture-description{max-width:350px;color:#fffc;font-size:.9rem;line-height:1.5}.video-status{display:inline-flex;align-items:center;padding:3px 8px;border-radius:20px;font-size:.85rem;gap:5px}.video-status.has-video{background:#0c9d9233;color:#a3ffb0;border:1px solid rgba(12,157,146,.3)}.video-status.no-video{background:#f9b23333;color:var(--secondary);border:1px solid rgba(249,178,51,.3)}@media (max-width: 768px){.admin-lectures{padding:1rem}.lectures-header{flex-direction:column;align-items:flex-start}.lectures-header .search-bar{max-width:100%;width:100%}.course-header{flex-direction:column;align-items:flex-start;gap:1rem}.course-actions{width:100%;justify-content:space-between}.lectures-table{display:block;overflow-x:auto}.lectures-table th,.lectures-table td{padding:.75rem;font-size:.9rem}.lecture-actions{flex-wrap:wrap;justify-content:center}.lecture-description{max-width:200px}}.admin-quizzes{padding:2rem;color:var(--text-light)}.quizzes-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}.quizzes-header h1{font-size:2rem;color:var(--primary)}.quizzes-info{display:flex;align-items:center;gap:.75rem;padding:1rem 1.5rem;background-color:#3b82f61a;border-radius:10px;margin-bottom:1.5rem;border-left:4px solid #3b82f6;color:var(--text-light);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);box-shadow:0 4px 15px #00000026}.info-icon{color:#3b82f6;font-size:1.25rem}.quizzes-header .search-bar{flex:1;max-width:400px}.quizzes-header .search-bar input{width:100%;padding:.75rem 1rem;border:1px solid var(--border);background:#121825b3;color:var(--text-light);border-radius:8px;font-size:1rem;box-shadow:0 4px 10px #0000001a}.quizzes-header .search-bar input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #0c9d9233}.courses-accordion{display:flex;flex-direction:column;gap:1.5rem}.course-item{border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:0 4px 15px #00000026;background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease}.course-item:hover{transform:translateY(-5px);box-shadow:0 8px 25px #0003}.course-header{display:flex;justify-content:space-between;align-items:center;padding:1.25rem;background:#121825b3;cursor:pointer}.course-title{display:flex;flex-direction:column;gap:.5rem}.course-title h2{font-size:1.25rem;margin:0;color:var(--text-light);font-weight:600}.expand-icon{display:flex;align-items:center;font-size:1.25rem;color:var(--text-light);transition:transform .3s ease}.expand-icon.open{transform:rotate(180deg)}.quizzes-container{padding:1.5rem}.loading-quizzes,.no-quizzes{text-align:center;padding:2rem;color:#fff9;background:#12182580;border-radius:8px;margin-top:1rem}.quizzes-table{width:100%;border-collapse:collapse}.quizzes-table th,.quizzes-table td{padding:1rem;text-align:left;border-bottom:1px solid rgba(255,255,255,.1)}.quizzes-table th{background-color:#121825b3;font-weight:600;color:var(--text-light)}.quizzes-table tr:hover td{background-color:#0c9d920d}.quiz-actions{display:flex;gap:.5rem;align-items:center}.edit-btn,.delete-btn{display:flex;align-items:center;justify-content:center;width:2.2rem;height:2.2rem;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease}.edit-btn{background:#f9b23333;color:var(--secondary);border:1px solid rgba(249,178,51,.3)}.edit-btn:hover{background:#f9b2334d;transform:translateY(-2px)}.delete-btn{background:#e74c3c33;color:#e74c3c;border:1px solid rgba(231,76,60,.3)}.delete-btn:hover{background:#e74c3c4d;transform:translateY(-2px)}.submissions-btn{display:flex;align-items:center;gap:.5rem;padding:.6rem 1rem;background:#10b98133;color:#10b981;border:1px solid rgba(16,185,129,.3);border-radius:8px;cursor:pointer;transition:all .3s ease}.submissions-btn:hover{background:#10b9814d;transform:translateY(-2px)}.no-courses{text-align:center;padding:3rem;background:#12182580;border-radius:10px;color:var(--text-light);border:1px dashed var(--border);margin-top:2rem}@media (max-width: 768px){.admin-quizzes{padding:1rem}.quizzes-header{flex-direction:column;align-items:flex-start}.quizzes-header .search-bar{max-width:100%;width:100%}.course-header{flex-direction:column;align-items:flex-start;gap:1rem}.quizzes-table th,.quizzes-table td{padding:.75rem;font-size:.9rem}.quiz-actions{flex-wrap:wrap}}.admin-submissions{padding:2rem;color:var(--text-light)}.submissions-header{margin-bottom:2rem}.submissions-header h1{margin-bottom:1.5rem;font-size:2rem;color:var(--primary)}.controls{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-bottom:1rem}.search-bar input{width:100%;padding:.75rem 1rem;border:1px solid var(--border);background:#121825b3;color:var(--text-light);border-radius:8px;font-size:1rem;box-shadow:0 4px 10px #0000001a}.search-bar input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #0c9d9233}.filters{display:flex;gap:.5rem}.filters button{padding:.65rem 1.25rem;border:1px solid var(--border);background-color:#121825b3;color:var(--text-light);border-radius:8px;cursor:pointer;transition:all .3s ease}.filters button:hover{background-color:#0c9d921a}.filters button.active{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border-color:transparent;box-shadow:0 4px 10px #0c9d9233}.submissions-table-container{overflow-x:auto;background:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:10px;box-shadow:0 4px 15px #00000026;border:1px solid var(--border)}.submissions-table{width:100%;border-collapse:collapse;overflow:hidden}.submissions-table th,.submissions-table td{padding:1rem;text-align:left;border-bottom:1px solid var(--border)}.submissions-table th{background-color:#121825b3;font-weight:600;color:var(--text-light)}.submissions-table tr:hover td{background-color:#0c9d920d}.student-email{color:#fff9;font-size:.85rem;margin-top:.25rem}.status-badge{display:inline-block;padding:.35rem .75rem;border-radius:20px;font-size:.85rem;font-weight:500;text-transform:uppercase}.status-badge.graded{background-color:#065f4626;color:#10b981;border:1px solid rgba(6,95,70,.2)}.status-badge.submitted{background-color:#0369a126;color:#3b82f6;border:1px solid rgba(3,105,161,.2)}.grade-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.6rem 1rem;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border-radius:8px;text-decoration:none;font-size:.875rem;transition:all .3s ease;box-shadow:0 4px 10px #0c9d9233;border:none}.grade-btn:hover{transform:translateY(-2px);box-shadow:0 6px 15px #0c9d924d}.no-submissions{text-align:center;padding:3rem;background:#12182580;border-radius:10px;color:var(--text-light);border:1px dashed var(--border);margin-top:2rem}@media (max-width: 768px){.admin-submissions{padding:1rem}.controls{flex-direction:column;align-items:flex-start}.search-bar{max-width:100%;width:100%}.filters{width:100%;overflow-x:auto;padding-bottom:.5rem}.filters button{white-space:nowrap}.submissions-table th,.submissions-table td{padding:.75rem;font-size:.9rem}}.instructor-sidebar{position:fixed;top:71px;left:0;height:auto;width:280px;background:linear-gradient(180deg,#1a2142,#0f172a);border-right:1px solid rgba(59,130,246,.2);color:#fff;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1000;overflow-y:auto;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:4px 0 20px #0000004d}.instructor-sidebar.collapsed{width:80px}.sidebar-header{padding:1.5rem;border-bottom:1px solid rgba(59,130,246,.2);background:#1a2142cc}.brand{display:flex;align-items:center;justify-content:space-between}.brand h2{font-size:1.3rem;font-weight:700;margin:0;background:linear-gradient(135deg,#3b82f6,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap;opacity:1;transition:opacity .3s ease}.collapsed .brand h2{opacity:0;pointer-events:none}.collapse-btn{background:#3b82f633;border:1px solid rgba(59,130,246,.3);color:#60a5fa;width:40px;height:40px;border-radius:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;font-size:1.1rem}.collapse-btn:hover{background:#3b82f64d;border-color:#3b82f6;transform:scale(1.05)}.collapsed .collapse-btn{transform:rotate(180deg)}.sidebar-body{flex:1;padding:1rem 0}.nav-items{list-style:none;padding:0;margin:0}.nav-item{display:flex;align-items:center;padding:.9rem 1.5rem;color:#fffc;text-decoration:none;transition:all .3s ease;margin:.3rem 1rem;border-radius:12px;font-weight:500;position:relative;overflow:hidden}.nav-item:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(59,130,246,.1),transparent);transition:left .5s ease}.nav-item:hover:before{left:100%}.nav-item:hover{background:#3b82f626;color:#fff;transform:translate(5px)}.nav-item.active{background:linear-gradient(135deg,#3b82f64d,#8b5cf633);color:#fff;box-shadow:0 4px 15px #3b82f633;border:1px solid rgba(59,130,246,.3)}.nav-icon{margin-right:1rem;font-size:1.2rem;min-width:20px;display:flex;align-items:center;justify-content:center}.collapsed .nav-item span{opacity:0;pointer-events:none;transform:translate(-10px);transition:all .3s ease}.collapsed .nav-item{padding:.9rem;justify-content:center;margin:.3rem .5rem}.collapsed .nav-icon{margin:0}.sidebar-footer{padding:1.5rem;border-top:1px solid rgba(59,130,246,.2);background:#1a2142cc}.logout-btn{width:100%;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;padding:.9rem 1rem;border-radius:10px;cursor:pointer;font-weight:600;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .3s ease;font-size:.95rem}.logout-btn:hover{background:linear-gradient(135deg,#dc2626,#b91c1c);transform:translateY(-2px);box-shadow:0 5px 15px #ef44444d}.collapsed .logout-btn span{display:none}.mobile-menu-btn{display:none;position:fixed;top:1rem;left:1rem;z-index:1001;background:#1a2142e6;border:1px solid rgba(59,130,246,.3);color:#60a5fa;width:50px;height:50px;border-radius:12px;cursor:pointer;font-size:1.2rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease}.mobile-menu-btn:hover{background:#3b82f633;transform:scale(1.05)}.sidebar-backdrop{display:none;position:fixed;top:0;left:0;width:100vw;height:100vh;background:#00000080;z-index:999;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.home-link-btn{display:flex;align-items:center;padding:.9rem 1.5rem;color:#fffc;text-decoration:none;transition:all .3s ease;margin:.3rem 1rem;border-radius:12px;font-weight:500;background:#10b98126;border:1px solid rgba(16,185,129,.3)}.home-link-btn:hover{background:#10b98140;color:#fff;transform:translate(5px)}@media (min-width: 769px){.instructor-layout-content{margin-left:280px;transition:margin-left .3s ease}.instructor-layout-content.sidebar-collapsed{margin-left:80px}}@media (max-width: 768px){.mobile-menu-btn{display:flex;align-items:center;justify-content:center}.instructor-sidebar{transform:translate(-100%);width:280px}.instructor-sidebar.mobile-open{transform:translate(0)}.instructor-sidebar.collapsed{width:280px}.sidebar-backdrop.mobile-open{display:block}.instructor-layout-content{margin-left:0!important}.collapsed .nav-item span,.collapsed .brand h2{opacity:1;pointer-events:all;transform:none}.collapsed .nav-item{padding:.9rem 1.5rem;justify-content:flex-start}.collapsed .nav-icon{margin-right:1rem}}@media (max-width: 480px){.mobile-menu-btn{width:45px;height:45px;font-size:1.1rem}.instructor-sidebar{width:260px}.nav-item{padding:.8rem 1.2rem;margin:.2rem .8rem}}.quiz-result-container{background-color:var(--background);color:#fff;padding:40px 20px;min-height:100vh;position:relative}.result-header{text-align:center;margin-bottom:30px}.result-header h1{font-size:2.5rem;font-weight:700;color:#fff;margin-bottom:10px}.quiz-info{max-width:700px;margin:0 auto}.quiz-info h2{font-size:1.8rem;color:var(--primary);margin-bottom:10px}.quiz-info p{color:#fffc;font-size:1rem}.result-summary{max-width:800px;margin:0 auto 40px;background-color:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:15px;padding:30px;box-shadow:0 10px 30px #0000004d;border:1px solid var(--border);text-align:center}.status-badge{display:inline-block;padding:8px 16px;border-radius:20px;font-size:.9rem;font-weight:600;margin-bottom:20px}.status-badge.pending{background-color:#ffc10733;color:#ffc107;border:1px solid rgba(255,193,7,.3)}.status-badge.graded{background-color:#0c9d9233;color:var(--primary);border:1px solid rgba(12,157,146,.3)}.score-info{margin:20px 0}.score-info h3{font-size:1.5rem;color:#fff;margin-bottom:20px}.score-result{display:flex;align-items:center;justify-content:center;gap:30px;flex-wrap:wrap}.score-percentage-container{position:relative}.score-percentage-circle{width:150px;height:150px;border-radius:50%;display:flex;align-items:center;justify-content:center;position:relative;color:#fff;font-size:2.2rem;font-weight:700;background:conic-gradient(var(--primary) var(--progress),rgba(255,255,255,.1) 0)}.score-percentage-circle:before{content:"";position:absolute;top:10px;right:10px;bottom:10px;left:10px;border-radius:50%;background-color:#1a2135e6}.score-percentage-circle span{position:relative;z-index:1}.score-message{flex:1;min-width:250px;max-width:350px;text-align:left}.passed-message,.failed-message{display:flex;align-items:flex-start;gap:15px}.trophy-icon{background-color:#0c9d9233;color:var(--primary);width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem}.lightbulb-icon{background-color:#ffc10733;color:#ffc107;width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.8rem}.score-message h4{font-size:1.2rem;color:#fff;margin-bottom:5px}.score-message p{color:#ffffffb3;font-size:1rem}.instructor-feedback{margin-top:30px;padding-top:20px;border-top:1px solid var(--border);text-align:left}.instructor-feedback h3{font-size:1.2rem;color:#fff;margin-bottom:10px}.instructor-feedback p{color:#fffc;font-style:italic;line-height:1.6}.answer-review{max-width:800px;margin:0 auto}.answer-review h3{font-size:1.8rem;color:#fff;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid var(--border)}.question-answer-pair{background-color:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:15px;padding:25px;margin-bottom:20px;box-shadow:0 5px 15px #0003;border:1px solid var(--border);transition:transform .2s ease,box-shadow .2s ease}.question-answer-pair:hover{transform:translateY(-3px);box-shadow:0 8px 20px #0000004d}.question-info{margin-bottom:20px}.question-info h4{font-size:1.1rem;color:#fff;margin-bottom:10px;display:flex;align-items:center;justify-content:space-between}.question-marks{font-size:.9rem;color:#fff9;font-weight:400}.question-info p{color:#ffffffe6;line-height:1.6;font-size:1.05rem}.answer-info{background-color:#121825b3;border-radius:10px;padding:20px}.user-answer,.correct-answer{margin-bottom:15px}.answer-label{font-size:.9rem;color:#fff9;margin-bottom:8px}.answer-content{background-color:#ffffff0d;padding:12px 15px;border-radius:8px;display:flex;justify-content:space-between;align-items:center;border:1px solid rgba(255,255,255,.05)}.answer-content.incorrect{border-color:#e74c3c4d;background-color:#e74c3c1a}.answer-content.correct{border-color:#0c9d924d;background-color:#0c9d921a}.answer-content.written{white-space:pre-wrap;text-align:left}.correct-icon{color:var(--primary)}.incorrect-icon{color:#e74c3c}.marks-awarded{margin-top:15px;padding-top:15px;border-top:1px solid var(--border)}.full-marks{color:var(--primary);font-weight:700}.partial-marks{color:#ffc107;font-weight:700}.answer-feedback{margin-top:10px;font-style:italic;color:#fffc}.result-actions{text-align:center;margin:40px 0}.continue-btn{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;border:none;padding:12px 25px;font-size:1rem;border-radius:8px;cursor:pointer;font-weight:600;display:inline-flex;align-items:center;gap:10px;transition:all .3s;text-decoration:none}.continue-btn:hover{transform:translateY(-3px);box-shadow:0 8px 20px #0c9d924d}.btn-icon{font-size:.9rem}.watermark-logo-faded{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);opacity:.02;width:60%;max-width:800px;z-index:0;pointer-events:none}.take-quiz-container{min-height:100vh;position:relative;color:#fff;overflow-x:hidden}.quiz-layout{display:flex;flex-direction:column;max-width:1200px;margin:0 auto;min-height:100vh;padding:0 20px;position:relative;z-index:1}.quiz-header{padding:20px 0;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:30px}.quiz-title-section{display:flex;flex-direction:column;margin-bottom:20px}.quiz-title{font-size:2.2rem;font-weight:700;color:#fff;margin-bottom:15px;letter-spacing:-.5px}.quiz-meta{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px}.quiz-timer-container{display:flex;align-items:center}.quiz-timer{display:flex;align-items:center;gap:8px;font-size:1.1rem;font-weight:600;background-color:#1a2135e6;padding:10px 15px;border-radius:12px;border:1px solid rgba(255,255,255,.1);box-shadow:0 4px 12px #0003}.quiz-timer.time-warning{background-color:#ffc10726;border-color:#ffc1074d;color:#ffc107}.quiz-timer.time-critical{background-color:#e74c3c26;border-color:#e74c3c4d;color:#f55;animation:pulse 2s infinite}@keyframes pulse{0%{opacity:.8}50%{opacity:1}to{opacity:.8}}.timer-icon{font-size:1rem}.quiz-questions-count{display:flex;align-items:center;gap:8px;font-size:1rem;color:#fffc}.question-count-icon{color:var(--primary)}.progress-container{display:flex;flex-direction:column;gap:10px}.progress-track{height:8px;background-color:#ffffff1a;border-radius:8px;overflow:hidden;position:relative}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary) 0%,var(--primary-dark) 100%);border-radius:8px;transition:width .3s ease}.progress-info{display:flex;justify-content:flex-end}.unanswered-warning{display:flex;align-items:center;gap:6px;font-size:.85rem;color:#ffc107}.warning-icon{font-size:.8rem}.quiz-content{display:flex;flex:1;gap:30px;margin-bottom:30px;position:relative;overflow-y:auto;max-height:calc(100vh - 250px);scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) rgba(26,33,53,.7)}.quiz-content::-webkit-scrollbar{width:6px}.quiz-content::-webkit-scrollbar-track{background:#1a2135b3}.quiz-content::-webkit-scrollbar-thumb{background-color:#fff3;border-radius:6px}.question-navigation{position:sticky;top:0;width:80px;align-self:flex-start}.question-nav-buttons{display:flex;flex-direction:column;gap:10px}.question-nav-button{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background-color:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:#fff;font-weight:600;cursor:pointer;transition:all .2s ease}.question-nav-button:hover{background-color:#ffffff1a;transform:translateY(-2px)}.question-nav-button.active{background-color:#0c9d924d;border-color:#0c9d9280;box-shadow:0 0 10px #0c9d924d}.question-nav-button.answered{background-color:#0c9d9226;border-color:#0c9d924d}.question-container{flex:1;background-color:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:15px;padding:30px;box-shadow:0 10px 30px #0003;border:1px solid rgba(255,255,255,.08)}.question-header{margin-bottom:25px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px}.question-number{font-size:1.6rem;color:#fff;font-weight:600}.question-meta{display:flex;gap:15px;flex-wrap:wrap}.question-marks,.question-type{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:20px;font-size:.9rem;background-color:#ffffff0d;border:1px solid rgba(255,255,255,.08)}.marks-icon,.type-icon{color:var(--primary);font-size:.8rem}.question-content{margin-bottom:30px;font-size:1.1rem;line-height:1.6;color:#ffffffe6;background-color:#12182599;padding:20px;border-radius:12px;border:1px solid rgba(255,255,255,.05)}.answer-section{margin-bottom:20px}.options-list{display:flex;flex-direction:column;gap:15px}.option-item{display:flex;align-items:center;gap:15px;padding:15px 20px;background-color:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:12px;cursor:pointer;transition:all .15s ease}.option-item:hover{background-color:#ffffff0f;transform:translateY(-2px);box-shadow:0 5px 15px #00000026}.option-item.selected{background-color:#0c9d9226;border-color:#0c9d9266;box-shadow:0 0 20px #0c9d9226}.option-marker{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background-color:#ffffff1a;color:#fff;font-weight:600;border-radius:50%}.option-content{flex:1;font-size:1rem;color:#ffffffe6}.option-selected-indicator{color:var(--primary);font-size:1.2rem}.written-answer-container{display:flex;flex-direction:column;gap:15px}.written-answer-input{width:100%;padding:15px;background-color:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:12px;color:#fff;font-size:1rem;line-height:1.6;resize:vertical;font-family:inherit;transition:all .2s ease;min-height:150px}.written-answer-input:focus{outline:none;border-color:#0c9d9280;box-shadow:0 0 0 2px #0c9d9233}.answer-guidelines{display:flex;align-items:flex-start;gap:10px;padding:12px 15px;background-color:#121825b3;border-radius:8px;border-left:3px solid var(--primary)}.info-icon{color:var(--primary);margin-top:3px}.quiz-footer{padding:20px 0;border-top:1px solid rgba(255,255,255,.05)}.navigation-buttons{display:flex;justify-content:space-between;gap:20px}.nav-button{display:flex;align-items:center;gap:8px;padding:12px 25px;border-radius:8px;font-weight:600;font-size:1rem;transition:all .2s ease;cursor:pointer}.prev-button{background-color:#ffffff1a;border:1px solid rgba(255,255,255,.1);color:#fff}.prev-button:hover:not(:disabled){background-color:#ffffff26;transform:translate(-3px)}.prev-button:disabled{opacity:.5;cursor:not-allowed}.next-button{background-color:#0c9d9233;border:1px solid rgba(12,157,146,.3);color:var(--primary)}.next-button:hover{background-color:#0c9d924d;transform:translate(3px)}.submit-button{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);border:none;color:#fff}.submit-button:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 8px 15px #0c9d924d}.submit-button:disabled{opacity:.6;cursor:wait}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#000000b3;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;z-index:100;animation:fadeIn .3s ease}.confirmation-modal{background-color:#1a2135f2;border:1px solid rgba(255,255,255,.1);border-radius:15px;padding:30px;width:450px;max-width:90%;box-shadow:0 15px 40px #0000004d;animation:scaleIn .3s ease}@keyframes scaleIn{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.modal-header{display:flex;align-items:center;gap:15px;margin-bottom:20px}.modal-header .warning-icon{color:#ffc107;font-size:1.5rem}.modal-header h3{color:#fff;font-size:1.5rem;font-weight:600}.modal-body p{color:#fffc;font-size:1rem;line-height:1.6;margin-bottom:25px}.modal-footer{display:flex;justify-content:flex-end;gap:15px}.cancel-button,.confirm-button{padding:10px 20px;border-radius:8px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .2s ease}.cancel-button{background-color:transparent;border:1px solid rgba(255,255,255,.2);color:#fff}.cancel-button:hover{background-color:#ffffff1a}.confirm-button{background-color:#ffc107;border:none;color:#000}.confirm-button:hover{background-color:#e5ac00;transform:translateY(-2px);box-shadow:0 5px 15px #ffc1074d}.grade-submission-container{color:#fff;padding:40px 20px;min-height:100vh}.grade-submission-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:30px;flex-wrap:wrap;gap:20px}.header-content h1{font-size:2.2rem;color:#fff;margin-bottom:10px}.header-content h2{font-size:1.5rem;color:var(--primary);margin-bottom:15px}.student-details{display:flex;align-items:center;gap:15px;margin-top:15px}.student-avatar{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;color:#fff}.student-details h3{font-size:1.2rem;margin-bottom:5px}.student-details p{font-size:.9rem;color:#ffffffb3}.back-button{display:flex;align-items:center;gap:8px;padding:10px 15px;background-color:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;cursor:pointer;color:#fff;transition:all .2s}.back-button:hover{background-color:#ffffff1a;transform:translate(-3px)}.grade-summary{display:flex;justify-content:space-between;align-items:center;max-width:800px;margin:0 auto 30px;padding:15px 20px;background-color:#1a2135b3;border-radius:10px;border:1px solid rgba(255,255,255,.05)}.total-marks{display:flex;align-items:center;gap:8px}.marks-label,.status-label{font-size:.9rem;color:#ffffffb3}.marks-value{font-size:1.1rem;font-weight:600;color:#fff}.submission-status{display:flex;align-items:center;gap:8px}.status-value{font-size:.9rem;font-weight:600;padding:5px 10px;border-radius:20px}.status-value.graded{background-color:#0c9d9233;color:var(--primary);border:1px solid rgba(12,157,146,.3)}.status-value.pending{background-color:#ffc10733;color:#ffc107;border:1px solid rgba(255,193,7,.3)}.grade-questions{max-width:800px;margin:0 auto 30px}.grade-questions h3{font-size:1.5rem;color:#fff;margin-bottom:20px}.grade-question-item{background-color:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:25px;margin-bottom:20px;box-shadow:0 5px 15px #0003;border:1px solid rgba(255,255,255,.05)}.question-header{margin-bottom:15px}.question-header h4{font-size:1.1rem;color:#fff;display:flex;align-items:center;justify-content:space-between}.question-number{font-weight:600;color:var(--primary);margin-right:8px}.max-marks{font-size:.9rem;color:#ffffffb3;font-weight:400}.student-answer{margin-bottom:20px;background-color:#121825b3;padding:15px;border-radius:8px}.answer-label{font-size:.9rem;color:#fff9;margin-bottom:10px}.answer-content{padding:12px 15px;background-color:#ffffff08;border:1px solid rgba(255,255,255,.05);border-radius:8px;color:#ffffffe6}.grading-section{display:flex;flex-direction:column;gap:15px}.marks-input-section{display:flex;align-items:center;gap:10px}.marks-input-section label{font-size:.95rem;color:#fffc}.marks-input{width:70px;padding:8px 12px;background-color:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:6px;color:#fff;font-size:1rem;text-align:center}.max-value{color:#ffffffb3;font-size:.9rem}.feedback-section{display:flex;flex-direction:column;gap:10px}.feedback-section label{font-size:.95rem;color:#fffc}.feedback-input{width:100%;padding:12px;background-color:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#fff;font-size:.95rem;font-family:inherit;resize:vertical;min-height:80px}.feedback-input:focus,.marks-input:focus{outline:none;border-color:#0c9d9280;box-shadow:0 0 0 2px #0c9d9233}.global-feedback{max-width:800px;margin:0 auto 30px;background-color:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:25px;border:1px solid rgba(255,255,255,.05)}.global-feedback label{font-size:1.1rem;color:#fff;margin-bottom:15px;display:block}.global-feedback-input{width:100%;padding:15px;background-color:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#fff;font-size:1rem;font-family:inherit;resize:vertical;min-height:120px}.global-feedback-input:focus{outline:none;border-color:#0c9d9280;box-shadow:0 0 0 2px #0c9d9233}.submission-actions{max-width:800px;margin:0 auto;display:flex;justify-content:flex-end;gap:15px}.cancel-btn,.save-grade-btn{display:flex;align-items:center;gap:8px;padding:12px 20px;border-radius:8px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .2s}.cancel-btn{background-color:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:#fff}.cancel-btn:hover{background-color:#ffffff1a}.save-grade-btn{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);border:none;color:#fff;box-shadow:0 4px 15px #0c9d9233}.save-grade-btn:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 6px 20px #0c9d924d}.save-grade-btn:disabled{opacity:.6;cursor:not-allowed}.btn-icon{font-size:1.1rem}.loading-spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite}.loading-container,.error-container{display:flex;align-items:center;justify-content:center;min-height:100vh}.error-message{background-color:#1a2135b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:30px;text-align:center;max-width:500px;border:1px solid rgba(231,76,60,.3)}.error-icon{color:#e74c3c;font-size:3rem;margin-bottom:15px}.error-message p{margin-bottom:20px;color:#fffc}.back-btn{background-color:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:10px 20px;border-radius:8px;cursor:pointer;transition:all .2s}.back-btn:hover{background-color:#ffffff26}@media (max-width: 768px){.quiz-title{font-size:1.8rem}.quiz-layout{padding:0 15px}.quiz-content{flex-direction:column;max-height:none}.question-navigation{position:relative;width:100%;margin-bottom:20px}.question-nav-buttons{flex-direction:row;flex-wrap:wrap;justify-content:center}.question-container{padding:20px}.navigation-buttons{flex-direction:column}.nav-button{width:100%;justify-content:center}.grade-submission-header{flex-direction:column}.grade-summary{flex-direction:column;gap:15px;align-items:flex-start}.submission-actions{flex-direction:column-reverse}.cancel-btn,.save-grade-btn{width:100%;justify-content:center}}@media (max-width: 480px){.quiz-meta,.question-header{flex-direction:column;align-items:flex-start}.option-item{padding:12px 15px}}:root{--background: #121825;--foreground: #ffffff;--muted: #2d3748;--muted-foreground: #a0aec0;--border: rgba(255, 255, 255, .1);--primary: #0C9D92;--primary-dark: #09827a;--secondary: #4a5568;--destructive: #e53e3e}.admin-quizzes .courses-accordion{margin-top:20px}.admin-quizzes .course-item{margin-bottom:15px;background-color:#1a2135b3;border-radius:10px;overflow:hidden;border:1px solid var(--border)}.admin-quizzes .course-header{padding:15px 20px;background-color:#121825b3;display:flex;justify-content:space-between;align-items:center;cursor:pointer;transition:all .2s}.admin-quizzes .course-header:hover{background-color:#0c9d921a}.admin-quizzes .course-title h2{font-size:1.2rem;color:#fff;margin:0}.admin-quizzes .expand-icon{color:var(--primary);font-size:1.1rem}.admin-quizzes .quizzes-container{padding:20px}.admin-quizzes .loading-quizzes,.admin-quizzes .no-quizzes{text-align:center;padding:20px;color:#fff9}.admin-quizzes .quizzes-table{width:100%;border-collapse:separate;border-spacing:0;margin-top:10px}.admin-quizzes .quizzes-table th,.admin-quizzes .quizzes-table td{padding:12px 15px;text-align:left;border-bottom:1px solid rgba(255,255,255,.05)}.admin-quizzes .quizzes-table th{background-color:#121825b3;color:#fffc;font-weight:500;font-size:.9rem}.admin-quizzes .quizzes-table tr:last-child td{border-bottom:none}.admin-quizzes .quiz-actions{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}.admin-quizzes .edit-btn,.admin-quizzes .delete-btn{background-color:#ffffff0d;border:none;color:#fff;width:32px;height:32px;border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.admin-quizzes .edit-btn:hover{background-color:#0c9d9233;color:var(--primary)}.admin-quizzes .delete-btn:hover{background-color:#e74c3c33;color:#e74c3c}.admin-quizzes .submissions-btn{display:flex;align-items:center;gap:6px;background-color:#0c9d9226;border:1px solid rgba(12,157,146,.2);color:var(--primary);padding:6px 10px;border-radius:6px;font-size:.85rem;cursor:pointer;transition:all .2s}.admin-quizzes .submissions-btn:hover{background-color:#0c9d9240;transform:translateY(-2px)}.payment-instructions-container{min-height:80vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:linear-gradient(135deg,#f3f4f6,#e5e7eb)}.payment-card{background:#fff;border-radius:12px;box-shadow:0 8px 20px #0000001a;width:100%;max-width:600px;overflow:hidden;position:relative}.payment-header{background:linear-gradient(135deg,#6366f1,#4338ca);color:#fff;padding:1.5rem;border-radius:12px 12px 0 0}.payment-header h2{margin:0;font-size:1.5rem;font-weight:600}.course-details{margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.2)}.course-details h3{margin:0 0 .5rem;font-size:1.2rem;font-weight:500}.course-price{font-size:1.8rem;font-weight:700}.payment-content{padding:1.5rem}.ussd-code-container{background:#f3f4f6;padding:1.2rem;border-radius:8px;margin-bottom:1.5rem;text-align:center}.ussd-code-label{font-size:.9rem;color:#6b7280;margin-bottom:.5rem}.ussd-code{font-size:1.6rem;font-weight:700;color:#111827;letter-spacing:1px}.payment-recipient{background:#f8fafc;padding:1.2rem;border-radius:8px;margin-bottom:1.5rem;text-align:center;border:1px dashed #cbd5e1}.recipient-label{font-size:.9rem;color:#6b7280;margin-bottom:.5rem}.recipient-name{font-size:1.3rem;font-weight:600;color:#111827}.payment-steps{margin:2rem 0}.step{display:flex;margin-bottom:1rem;align-items:center}.step-number{width:30px;height:30px;background:#6366f1;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;margin-right:1rem;flex-shrink:0}.step-text{color:#4b5563;font-size:1rem}.payment-button{background:#4338ca;color:#fff;border:none;padding:.9rem 1.5rem;font-size:1.1rem;font-weight:600;border-radius:8px;cursor:pointer;width:100%;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s ease;margin-top:1rem}.payment-button:hover{background:#4f46e5;transform:translateY(-2px);box-shadow:0 4px 12px #4f46e54d}.payment-button:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}.payment-status{margin-top:1.5rem}.status{display:flex;padding:1rem;border-radius:8px;align-items:center;gap:1rem}.status.pending{background:#fef3c7;border:1px solid #f59e0b}.status.rejected{background:#fee2e2;border:1px solid #ef4444}.status-icon{font-size:1.5rem}.status-message h4{margin:0 0 .5rem;font-size:1rem;font-weight:600}.status-message p{margin:0;font-size:.9rem;color:#4b5563}@media (max-width: 640px){.payment-card{max-width:100%}.payment-instructions-container{padding:1rem}.ussd-code{font-size:1.3rem}}.payment-requests-container{padding:1.5rem}.payment-requests-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.payment-requests-header h1{font-size:1.8rem;font-weight:700;color:#1e293b;margin:0}.refresh-button{background:#f3f4f6;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.refresh-button:hover{background:#e5e7eb;transform:rotate(30deg)}.payment-tabs{display:flex;gap:1rem;margin-bottom:1.5rem;border-bottom:1px solid #e5e7eb}.payment-tabs button{background:none;border:none;padding:.75rem 1rem;font-size:1rem;font-weight:500;color:#6b7280;cursor:pointer;position:relative}.payment-tabs button.tab-active{color:#4f46e5;font-weight:600}.payment-tabs button.tab-active:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;background-color:#4f46e5}.loading-indicator{text-align:center;padding:2rem;color:#6b7280;font-size:1rem}.empty-state{text-align:center;padding:3rem 1rem;background:#f8fafc;border-radius:8px;color:#64748b}.empty-icon{font-size:3rem;margin-bottom:1rem}.empty-state h3{font-size:1.2rem;font-weight:600;color:#475569;margin-bottom:.5rem}.empty-state p{font-size:.9rem;max-width:400px;margin:0 auto}.payment-requests-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:1.5rem}.payment-request-card{background:#fff;border-radius:8px;box-shadow:0 2px 10px #0000000d;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;border-top:4px solid #9ca3af}.payment-request-card:hover{transform:translateY(-4px);box-shadow:0 8px 16px #0000001a}.payment-request-card.pending{border-top-color:#f59e0b}.payment-request-card.approved{border-top-color:#10b981}.payment-request-card.rejected{border-top-color:#ef4444}.request-header{padding:1.25rem;display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1px solid #f3f4f6}.student-info{display:flex;align-items:center;gap:.75rem}.student-icon,.course-icon,.timestamp-icon{color:#6b7280;font-size:1.25rem;flex-shrink:0}.student-info h3{font-size:1rem;font-weight:600;margin:0 0 .25rem;color:#1e293b}.email{font-size:.85rem;color:#64748b;margin:0}.status-badge{font-size:.75rem;font-weight:600;text-transform:uppercase;padding:.25rem .75rem;border-radius:9999px;background-color:#f3f4f6;color:#6b7280}.payment-request-card.pending .status-badge{background-color:#fef3c7;color:#b45309}.payment-request-card.approved .status-badge{background-color:#d1fae5;color:#047857}.payment-request-card.rejected .status-badge{background-color:#fee2e2;color:#b91c1c}.course-info{padding:1.25rem;display:flex;align-items:center;gap:.75rem;border-bottom:1px solid #f3f4f6;background-color:#f9fafb}.course-info h4{font-size:.95rem;font-weight:600;margin:0 0 .25rem;color:#1e293b}.price{font-size:.95rem;font-weight:700;color:#4f46e5;margin:0}.timestamps{padding:1.25rem;border-bottom:1px solid #f3f4f6}.timestamp{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:#64748b;margin-bottom:.5rem}.timestamp:last-child{margin-bottom:0}.action-buttons{padding:1.25rem;display:flex;gap:.75rem}.approve-button,.reject-button{padding:.5rem 1rem;font-size:.9rem;font-weight:600;border-radius:6px;display:flex;align-items:center;justify-content:center;gap:.5rem;cursor:pointer;transition:all .2s ease;flex:1}.approve-button{background:#10b981;color:#fff;border:none}.approve-button:hover{background:#059669}.reject-button{background:#fff;color:#ef4444;border:1px solid #ef4444}.reject-button:hover{background:#fef2f2}.approve-button:disabled,.reject-button:disabled{opacity:.6;cursor:not-allowed}@media (max-width: 768px){.payment-requests-list{grid-template-columns:1fr}.payment-tabs{overflow-x:auto;padding-bottom:4px}}.instructor-dashboard{color:var(--text-color);padding:0}.dashboard-title{font-size:2.5rem;margin-bottom:2rem;color:#fffffff2;font-weight:700;background:linear-gradient(135deg,#3b82f6,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent;position:relative;padding-bottom:.5rem;text-align:center}.dashboard-title:after{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:120px;height:4px;background:linear-gradient(90deg,#3b82f6,#8b5cf6);border-radius:10px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-bottom:3rem}.stat-box{background:linear-gradient(135deg,#1a2142e6,#0f172acc);border-radius:20px;padding:2rem;display:flex;align-items:center;box-shadow:0 10px 40px #0006;border:1px solid rgba(59,130,246,.2);transition:all .4s ease;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);position:relative;overflow:hidden}.stat-box:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#3b82f6,#8b5cf6)}.stat-box:hover{transform:translateY(-10px);box-shadow:0 20px 50px #3b82f64d;border-color:#3b82f666}.stat-icon{width:4rem;height:4rem;background:linear-gradient(135deg,#3b82f633,#8b5cf633);border-radius:16px;display:flex;align-items:center;justify-content:center;margin-right:1.5rem;color:#60a5fa;font-size:2rem;transition:all .3s ease;box-shadow:0 8px 25px #3b82f633}.stat-box:hover .stat-icon{background:linear-gradient(135deg,#3b82f64d,#8b5cf64d);transform:scale(1.1) rotate(5deg);color:#3b82f6}.stat-content h3{font-size:1rem;color:#fffc;margin-bottom:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:1px}.stat-content p{font-size:2.8rem;font-weight:800;margin:0;color:#fff;line-height:1}.admin-actions-container{margin:3rem 0}.admin-actions-container h2{font-size:1.8rem;color:#fffffff2;margin-bottom:2rem;font-weight:600;position:relative;display:inline-block;padding-bottom:8px}.admin-actions-container h2:after{content:"";position:absolute;bottom:0;left:0;width:60%;height:3px;background:linear-gradient(90deg,var(--secondary) 0%,rgba(226,154,32,.3) 100%);border-radius:10px}.admin-actions-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;margin-bottom:3rem}.action-card{background:#1a2135cc;border-radius:12px;padding:2rem;text-decoration:none;display:flex;flex-direction:column;box-shadow:0 4px 20px #0000004d;border:1px solid rgba(79,70,229,.2);transition:all .3s ease;position:relative;overflow:hidden;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.action-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#4f46e5,#7c3aed);opacity:0;transition:opacity .3s ease}.action-card:hover:before{opacity:1}.action-card:hover{transform:translateY(-8px);border-color:#4f46e566;box-shadow:0 12px 40px #4f46e54d}.action-card:hover .action-icon{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;transform:scale(1.1)}.action-icon{width:3.5rem;height:3.5rem;border-radius:12px;background:#4f46e526;display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem;color:#9b87f5;font-size:1.8rem;transition:all .3s ease}.action-card h3{font-size:1.3rem;color:#fffffff2;margin-bottom:.8rem;font-weight:600}.action-card p{color:#ffffffb3;margin-bottom:1rem;line-height:1.6;flex-grow:1}.sub-links{display:flex;flex-direction:column;gap:.5rem;margin-top:1rem;padding-top:1rem;border-top:1px solid rgba(255,255,255,.1)}.sub-links a{color:#4f46e5cc;text-decoration:none;font-size:.9rem;padding:.3rem 0;transition:color .2s ease}.sub-links a:hover{color:#9b87f5}.courses-container{background:linear-gradient(135deg,#1a2142cc,#0f172a99);border-radius:24px;padding:3rem;margin-bottom:3rem;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(59,130,246,.2);box-shadow:0 20px 60px #0006}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem;padding-bottom:1.5rem;border-bottom:2px solid rgba(59,130,246,.2)}.section-header h2{font-size:2.2rem;color:#fffffff2;margin:0;font-weight:700;background:linear-gradient(135deg,#3b82f6,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent}.view-all-link{color:#60a5fa;font-size:1.1rem;text-decoration:none;transition:all .3s ease;padding:.8rem 1.5rem;border-radius:12px;border:1px solid rgba(96,165,250,.3);background:#3b82f61a;font-weight:600}.view-all-link:hover{background:#3b82f633;color:#fff;transform:translateY(-3px);box-shadow:0 8px 25px #3b82f64d}.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:2.5rem}.course-card{background:linear-gradient(135deg,#0f172ae6,#1a2142cc);border-radius:20px;overflow:hidden;transition:all .4s ease;border:1px solid rgba(59,130,246,.2);display:flex;flex-direction:column;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);box-shadow:0 15px 40px #0006;position:relative}.course-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#3b82f6,#8b5cf6);opacity:0;transition:opacity .3s ease}.course-card:hover{transform:translateY(-12px);box-shadow:0 25px 60px #3b82f666;border-color:#3b82f680}.course-image{height:220px;overflow:hidden;position:relative;background:linear-gradient(135deg,#1a2142,#0f172a)}.course-image:after{content:"";position:absolute;bottom:0;left:0;right:0;height:60px;background:linear-gradient(transparent,#0f172ae6)}.course-image img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;filter:brightness(.9)}.course-card:hover .course-image img{transform:scale(1.08);filter:brightness(1)}.course-info{padding:2rem;flex-grow:1;display:flex;flex-direction:column}.course-info h3{margin:0 0 1rem;font-size:1.5rem;line-height:1.4;color:#fffffff2;font-weight:700}.course-desc{font-size:1rem;color:#ffffffb3;margin-bottom:1.5rem;flex-grow:1;line-height:1.6;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.course-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;font-size:1rem}.course-type{background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;padding:.5rem 1rem;border-radius:25px;font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:1px;box-shadow:0 4px 15px #3b82f64d}.course-type.FREE{background:linear-gradient(135deg,#10b981,#059669)}.course-actions{display:flex;gap:1rem}.course-actions a{flex:1;text-align:center;padding:1rem 0;border-radius:12px;font-size:1rem;font-weight:600;text-decoration:none;transition:all .3s ease;border:1px solid transparent}.view-btn{background:#3b82f626;color:#60a5fa;border:1px solid rgba(59,130,246,.3)}.view-btn:hover{background:#3b82f640;color:#fff;transform:translateY(-3px);box-shadow:0 8px 25px #3b82f64d}.lectures-btn{background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;border:1px solid transparent}.lectures-btn:hover{background:linear-gradient(135deg,#1d4ed8,#1e40af);transform:translateY(-3px);box-shadow:0 8px 25px #3b82f666}.add-course-card{background:linear-gradient(135deg,#3b82f61a,#8b5cf60d);border:2px dashed rgba(59,130,246,.5);display:flex;align-items:center;justify-content:center;text-decoration:none;color:#60a5fa;transition:all .4s ease;min-height:350px;border-radius:20px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.add-course-card:hover{background:linear-gradient(135deg,#3b82f633,#8b5cf61a);border-color:#3b82f6;transform:translateY(-8px);box-shadow:0 20px 50px #3b82f633}.add-course-content{text-align:center;padding:3rem}.add-course-content svg{margin-bottom:1.5rem;color:#60a5fa}.add-course-content h3{margin:0;font-size:1.5rem;font-weight:700;color:#3b82f6}.no-courses{grid-column:1 / -1;text-align:center;padding:4rem 3rem;background:linear-gradient(135deg,#0f172acc,#1a214299);border-radius:20px;border:2px dashed rgba(59,130,246,.3);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px)}.no-courses p{font-size:1.3rem;color:#ffffffb3;margin-bottom:2rem}.create-course-btn{display:inline-flex;align-items:center;gap:1rem;background:linear-gradient(135deg,#3b82f6,#1d4ed8);color:#fff;padding:1.2rem 2.5rem;border-radius:12px;text-decoration:none;font-weight:700;font-size:1.1rem;transition:all .3s ease;border:none;cursor:pointer;box-shadow:0 10px 30px #3b82f64d}.create-course-btn:hover{background:linear-gradient(135deg,#1d4ed8,#1e40af);transform:translateY(-3px);box-shadow:0 15px 40px #3b82f666}.recent-submissions-container{background:#1a213599;border-radius:16px;padding:2rem;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 8px 32px #0000004d}.submissions-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid rgba(255,255,255,.1)}.submissions-header h2{font-size:1.8rem;color:#fffffff2;margin:0;font-weight:600}.submissions-table{width:100%;border-collapse:collapse;background:#12182599;border-radius:12px;overflow:hidden}.submissions-table th,.submissions-table td{padding:1rem;text-align:left;border-bottom:1px solid rgba(255,255,255,.08)}.submissions-table th{background:#0b1437cc;font-weight:600;color:#ffffffe6;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}.status{display:inline-block;padding:.3rem .8rem;border-radius:20px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status.graded{background:#10b98133;color:#10b981;border:1px solid rgba(16,185,129,.3)}.status.submitted{background:#f59e0b33;color:#f59e0b;border:1px solid rgba(245,158,11,.3)}.grade-btn{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;padding:.5rem 1rem;border-radius:6px;text-decoration:none;font-size:.85rem;font-weight:500;transition:all .3s ease;border:none;cursor:pointer}.no-submissions{text-align:center;padding:3rem;color:#fff9;background:#12182566;border-radius:12px;border:1px dashed rgba(79,70,229,.3)}@media (max-width: 768px){.dashboard-title{font-size:2rem;margin-bottom:1.5rem}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}.stat-box{padding:1.2rem;flex-direction:column;text-align:center}.stat-icon{margin-right:0;margin-bottom:.8rem;width:3rem;height:3rem;font-size:1.5rem}.stat-content p{font-size:1.8rem}.admin-actions-grid{grid-template-columns:1fr;gap:1.5rem}.action-card{padding:1.5rem}.courses-container,.recent-submissions-container{padding:1.5rem;margin-bottom:2rem}.courses-grid{grid-template-columns:1fr;gap:1.5rem}.course-actions{flex-direction:column;gap:.6rem}.section-header{flex-direction:column;align-items:flex-start;gap:1rem}.submissions-table{font-size:.85rem}.submissions-table th,.submissions-table td{padding:.8rem .6rem}.submissions-table-container{overflow-x:auto}}@media (max-width: 480px){.dashboard-title{font-size:1.4rem}.stats-grid{grid-template-columns:1fr}.courses-container,.recent-submissions-container{padding:1rem}.course-card{margin:0}.course-info{padding:1.2rem}.submissions-table{font-size:.8rem}.submissions-table th,.submissions-table td{padding:.6rem .4rem}}.instructor-courses-container{width:100%;padding:1rem;max-width:1400px;margin:0 auto}.courses-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2.5rem;flex-wrap:wrap;gap:1rem}.courses-header h1{font-size:2rem;color:#fffffff2;margin:0;font-weight:700;background:linear-gradient(135deg,#431bbb,#9b87f5);-webkit-background-clip:text;background-clip:text;color:transparent}.new-course-btn{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;padding:1rem 2rem;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:1rem;display:flex;align-items:center;gap:.8rem}.new-course-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}.courses-list{width:100%}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr),auto-fill);gap:2rem;height:auto;margin:0 auto;padding:0 1rem;align-items:start;justify-items:center;transition:all .3s ease;height:fit-content}.course-card{background:#1a2135cc;border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:all .3s ease;border:1px solid rgba(79,70,229,.2);-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);box-shadow:0 4px 20px #0000004d;position:relative}.course-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#4f46e5,#7c3aed);opacity:0;transition:opacity .3s ease}.course-card:hover:before{opacity:1}.course-card:hover{transform:translateY(-8px);box-shadow:0 12px 40px #4f46e54d;border-color:#4f46e566}.course-image{height:200px;overflow:hidden;position:relative}.course-image:after{content:"";position:absolute;bottom:0;left:0;right:0;height:50px;background:linear-gradient(transparent,#1a2135cc)}.course-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.course-card:hover .course-image img{transform:scale(1.05)}.course-details{padding:2rem;display:flex;flex-direction:column;flex-grow:1}.course-details h3{margin-top:0;margin-bottom:1rem;font-size:1.4rem;line-height:1.4;color:#fffffff2;font-weight:600}.course-description{font-size:1rem;color:#ffffffb3;margin-bottom:1.5rem;flex-grow:1;line-height:1.6;height:fit-content}.course-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding:1rem;background:#12182599;border-radius:8px;border:1px solid rgba(79,70,229,.1)}.course-type{padding:.4rem 1rem;border-radius:20px;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.course-type.free{background:linear-gradient(135deg,#10b981,#059669);color:#fff}.course-type.paid{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}.course-price{font-weight:700;color:#ffffffe6;font-size:1.1rem}.course-stats{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:1.5rem;font-size:.9rem;color:#f8f3f3b3;padding:1rem;background:#12182566;border-radius:8px}.course-stats span{display:flex;align-items:center;gap:.5rem}.course-actions{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}.course-actions button,.course-actions a{padding:.8rem;border-radius:8px;font-size:.9rem;cursor:pointer;transition:all .3s ease;border:none;font-weight:600;text-decoration:none;text-align:center;display:flex;align-items:center;justify-content:center;gap:.5rem}.manage-lectures-btn{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;grid-column:span 2}.manage-lectures-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 4px 15px #4f46e54d}.edit-course-btn{background:#f9b23326;color:#f9b233;border:1px solid rgba(249,178,51,.3)}.edit-course-btn:hover{background:#f9b23340;color:#fff;transform:translateY(-2px)}.delete-course-btn{background:#ef444426;color:#ef4444;border:1px solid rgba(239,68,68,.3)}.delete-course-btn:hover{background:#ef444440;color:#fff;transform:translateY(-2px)}.no-courses{text-align:center;padding:4rem 2rem;background:#1a2135cc;border-radius:16px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.no-courses h2{margin-bottom:1rem;color:#ffffffe6;font-size:1.8rem}.no-courses p{margin-bottom:2rem;color:#ffffffb3;font-size:1.1rem;line-height:1.6}.create-first-course-btn{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;padding:1.2rem 2.5rem;border:none;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.create-first-course-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}.instructor-course-container{width:100%;padding:1rem;max-width:1000px;margin:0 auto}.course-form-container{background:#1a2135cc;border-radius:16px;padding:3rem;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 8px 32px #0000004d}.course-form-container h1{text-align:center;margin-bottom:2.5rem;color:#fffffff2;font-size:2.2rem;font-weight:700}.form-group{margin-bottom:2rem}.form-group label{display:block;margin-bottom:.8rem;font-weight:600;color:#ffffffe6;font-size:1rem}.form-group input,.form-group select,.form-group textarea{width:100%;padding:1rem;background:#121825cc;border:1px solid rgba(79,70,229,.3);border-radius:8px;color:#fff;font-size:1rem;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.form-group textarea{min-height:140px;resize:vertical;line-height:1.6}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#9b87f5;box-shadow:0 0 0 2px #9b87f533}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.disabled-input{background:#12182566!important;cursor:not-allowed;opacity:.6}.image-preview{margin-top:1rem;max-width:400px;border-radius:8px;overflow:hidden;border:1px solid rgba(79,70,229,.3)}.image-preview img{width:100%;height:auto;display:block}.form-actions{display:flex;justify-content:flex-end;gap:1.5rem;margin-top:3rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1)}.cancel-btn,.submit-btn{padding:1rem 2rem;border-radius:8px;font-size:1rem;cursor:pointer;transition:all .3s ease;border:none;font-weight:600}.cancel-btn{background:#ffffff1a;color:#fffc;border:1px solid rgba(255,255,255,.2)}.cancel-btn:hover{background:#ffffff26;color:#fff}.submit-btn{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff}.submit-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}.submit-btn:disabled{background:#6b728080;cursor:not-allowed;transform:none;box-shadow:none}@media (max-width: 768px){.instructor-courses-container{padding:.5rem}.courses-header{flex-direction:column;align-items:stretch;gap:1.5rem;margin-bottom:2rem}.courses-header h1{font-size:1.8rem;text-align:center}.new-course-btn{width:100%;justify-content:center}.course-grid{grid-template-columns:1fr;gap:1.5rem}.course-card{margin:0}.course-details{padding:1.5rem}.course-meta{flex-direction:column;gap:1rem;align-items:flex-start}.course-actions{grid-template-columns:1fr;gap:.8rem}.manage-lectures-btn{grid-column:span 1}.form-row{grid-template-columns:1fr;gap:1.5rem}.course-form-container{padding:2rem}.course-form-container h1{font-size:1.8rem}.form-actions{flex-direction:column;gap:1rem}.cancel-btn,.submit-btn{width:100%}.no-courses{padding:3rem 1.5rem}}@media (max-width: 480px){.instructor-courses-container{padding:.25rem}.course-details{padding:1.2rem}.course-details h3{font-size:1.2rem}.course-stats{flex-direction:column;gap:.8rem}.course-form-container{padding:1.5rem}.form-group{margin-bottom:1.5rem}.no-courses{padding:2rem 1rem}.courses-header h1{font-size:1.6rem}}.course-card:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(79,70,229,.3),transparent)}.form-group input::placeholder,.form-group textarea::placeholder{color:#fff2f266}.course-stats svg{color:#9b87f5}.instructor-lectures-container{padding:20px;background:linear-gradient(135deg,#1a1a2e,#16213e);border-radius:12px;box-shadow:0 8px 32px #0000004d;color:#fff;margin:20px auto;max-width:1200px}.course-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:15px;border-bottom:1px solid rgba(255,255,255,.1)}.course-header h1{font-size:28px;margin-bottom:5px}.course-description{font-size:16px;color:#a0a0a0}.lecture-actions{display:flex;gap:15px}.back-btn,.add-lecture-btn{padding:12px 24px;border:none;border-radius:8px;background:linear-gradient(135deg,#0c9d92,#00d4aa);color:#fff;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #0c9d924d;font-size:16px}.back-btn:hover,.add-lecture-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0c9d9266}.lecture-form-container{background:#ffffff0d;border-radius:12px;padding:20px;margin-bottom:20px;border:1px solid rgba(255,255,255,.1)}.lecture-form-container h2{font-size:22px;margin-bottom:15px;color:#ddd}.form-group{margin-bottom:15px}.form-group label{display:block;font-size:16px;color:#ddd;margin-bottom:5px}.form-group input[type=text],.form-group textarea,.form-group input[type=file]{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;background:#fff;font-size:14px;color:#333;transition:all .3s ease}.form-group textarea{resize:vertical;min-height:120px}.form-group input[type=text]:focus,.form-group textarea:focus{outline:none;border-color:#0c9d92;box-shadow:0 0 0 3px #0c9d921a}.form-actions{display:flex;justify-content:flex-end;gap:15px}.cancel-btn,.submit-btn{padding:12px 24px;border:none;border-radius:8px;font-size:16px;cursor:pointer;transition:all .3s ease}.cancel-btn{background:#ffffff1a;color:#ddd}.submit-btn{background:linear-gradient(135deg,#0c9d92,#00d4aa);color:#fff;box-shadow:0 4px 15px #0c9d924d}.cancel-btn:hover{background:#fff3}.submit-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0c9d9266}.lectures-list{margin-top:20px}.lectures-list h2{font-size:22px;margin-bottom:15px;color:#ddd}.no-lectures{background:#ffffff0d;border-radius:12px;padding:20px;text-align:center;color:#a0a0a0}.lectures-table-container{overflow-x:auto}.lectures-table{width:100%;border-collapse:collapse;margin-top:10px}.lectures-table th,.lectures-table td{padding:15px;text-align:left;border-bottom:1px solid rgba(255,255,255,.1)}.lectures-table th{background:#ffffff0d;font-weight:600;color:#ddd}.lectures-table td{color:#a0a0a0}.table-actions{display:flex;gap:10px;justify-content:center}.edit-btn,.delete-btn,.quiz-btn{padding:10px 16px;border:none;border-radius:6px;font-size:14px;cursor:pointer;transition:all .3s ease}.edit-btn{background:#2980b9;color:#fff}.delete-btn{background:#c0392b;color:#fff}.quiz-btn{background:#8e44ad;color:#fff}.edit-btn:hover{background:#3498db}.delete-btn:hover{background:#e74c3c}.quiz-btn:hover{background:#9b59b6}.lecture-desc{max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media (max-width: 768px){.instructor-lectures-container{padding:15px}.course-header{flex-direction:column;align-items:flex-start;margin-bottom:15px}.course-header h1{font-size:24px}.lecture-actions{flex-direction:column;gap:10px;width:100%}.back-btn,.add-lecture-btn{width:100%;padding:10px;font-size:14px}.lecture-form-container{padding:15px}.lecture-form-container h2{font-size:20px}.form-group label{font-size:14px}.form-group input[type=text],.form-group textarea,.form-group input[type=file]{padding:10px;font-size:13px}.form-actions{flex-direction:column;gap:10px}.cancel-btn,.submit-btn{width:100%;padding:10px;font-size:14px}.lectures-list h2{font-size:20px}.lectures-table th,.lectures-table td{padding:12px;font-size:13px}.table-actions{flex-direction:column;gap:8px}.edit-btn,.delete-btn,.quiz-btn{width:100%;padding:8px;font-size:13px}.lecture-desc{max-width:100%;white-space:normal;overflow:visible;text-overflow:clip}}.lecture-type-selector{margin-top:5px}.custom-select{position:relative;display:inline-block;width:100%}.custom-select select{width:100%;padding:12px 40px 12px 15px;border:2px solid #e0e0e0;border-radius:8px;background:#fff;font-size:14px;color:#333;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;transition:all .3s ease}.custom-select select:focus{outline:none;border-color:#0c9d92;box-shadow:0 0 0 3px #0c9d921a}.select-arrow{position:absolute;right:15px;top:50%;transform:translateY(-50%);color:#666;pointer-events:none;font-size:12px}.lecture-type-display{display:flex;align-items:center;gap:8px;font-size:14px}.lecture-type-icon{color:#0c9d92;font-size:16px}.file-info{display:block;margin-top:5px;color:#666;font-size:12px;font-style:italic}@media (max-width: 768px){.lecture-type-display{flex-direction:column;align-items:flex-start;gap:4px}.lecture-type-icon{font-size:14px}}.instructor-quizzes-container{padding:1rem;width:100%;max-width:1400px;margin:0 auto}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2.5rem;flex-wrap:wrap;gap:1rem}.page-header h1{font-size:2rem;color:#fffffff2;margin:0;font-weight:700;background:linear-gradient(135deg,#fff,#9b87f5);-webkit-background-clip:text;background-clip:text;color:transparent}.create-quiz-btn{display:flex;align-items:center;gap:.8rem;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border:none;padding:1rem 2rem;border-radius:8px;cursor:pointer;font-weight:600;font-size:1rem;transition:all .3s ease}.create-quiz-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}.course-selector{margin-bottom:2rem;background:#1a2135cc;border-radius:12px;padding:2rem;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.quizzes-content{background:#1a2135cc;border-radius:12px;padding:2rem;min-height:400px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.loading{text-align:center;padding:3rem;font-style:italic;color:#ffffffb3;font-size:1.1rem}.no-quizzes,.no-courses{text-align:center;padding:3rem 2rem;background:#12182599;border-radius:12px;border:1px dashed rgba(79,70,229,.3)}.no-quizzes h3,.no-courses h3{color:#ffffffe6;margin-bottom:1rem;font-size:1.3rem}.no-quizzes p,.no-courses p{color:#ffffffb3;margin-bottom:1.5rem;line-height:1.6}.view-lectures-btn,.create-course-btn{display:inline-flex;align-items:center;gap:.8rem;margin-top:1rem;padding:1rem 2rem;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s ease;border:none;cursor:pointer}.view-lectures-btn:hover,.create-course-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}.quizzes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:2rem}.quiz-card{background:#121825cc;border-radius:12px;overflow:hidden;padding:2rem;border:1px solid rgba(79,70,229,.2);transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 20px #0000004d;position:relative}.quiz-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#4f46e5,#7c3aed);opacity:0;transition:opacity .3s ease}.quiz-card:hover:before{opacity:1}.quiz-card:hover{transform:translateY(-8px);box-shadow:0 12px 40px #4f46e54d;border-color:#4f46e566}.quiz-title{font-size:1.3rem;font-weight:600;margin-bottom:1rem;color:#fffffff2;line-height:1.4}.quiz-meta{display:flex;justify-content:space-between;margin-bottom:1.5rem;font-size:.9rem;color:#ffffffb3;padding:1rem;background:#0b143766;border-radius:8px;border:1px solid rgba(79,70,229,.1)}.quiz-description{font-size:1rem;color:#fffc;margin-bottom:2rem;line-height:1.6;flex-grow:1}.quiz-actions{display:flex;gap:.8rem;justify-content:flex-end;margin-top:auto}.quiz-actions button{background:#12182599;border:1px solid rgba(79,70,229,.3);width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;font-size:1.1rem}.view-btn{color:#38bdf8;border-color:#38bdf84d}.view-btn:hover{background:#38bdf833;border-color:#38bdf8;transform:translateY(-2px)}.edit-btn{color:#f59e0b;border-color:#f59e0b4d}.edit-btn:hover{background:#f59e0b33;border-color:#f59e0b;transform:translateY(-2px)}.delete-btn{color:#ef4444;border-color:#ef44444d}.delete-btn:hover{background:#ef444433;border-color:#ef4444;transform:translateY(-2px)}@media (max-width: 768px){.instructor-quizzes-container{padding:.5rem}.page-header{flex-direction:column;align-items:stretch;gap:1.5rem;margin-bottom:2rem}.page-header h1{font-size:1.8rem;text-align:center}.create-quiz-btn{width:100%;justify-content:center}.course-selector{margin-bottom:1.5rem;padding:1.5rem}.quizzes-content{padding:1.5rem;min-height:300px}.quizzes-grid{grid-template-columns:1fr;gap:1.5rem}.quiz-card{padding:1.5rem}.quiz-meta{flex-direction:column;gap:.8rem;text-align:left}.quiz-actions{justify-content:center;gap:1rem}.no-quizzes,.no-courses{padding:2rem 1.5rem}}@media (max-width: 480px){.instructor-quizzes-container{padding:.25rem}.page-header h1{font-size:1.6rem}.course-selector,.quizzes-content{padding:1rem}.quiz-card{padding:1.2rem}.quiz-title{font-size:1.2rem}.quiz-actions button{width:40px;height:40px;font-size:1rem}.no-quizzes,.no-courses{padding:1.5rem 1rem}}.quiz-card{display:flex;flex-direction:column}.quiz-meta .questions-count,.quiz-meta .created-date{font-weight:500}.quiz-meta .questions-count{color:#9b87f5}.loading{display:flex;align-items:center;justify-content:center;gap:1rem}.course-selector select option{background:#121825e6;color:#fff}.final-exam-management{padding:20px;max-width:1200px;margin:0 auto}.header-text h1{margin:0;color:#2c3e50;font-size:2rem;font-weight:700}.header-text p{margin:5px 0 0;color:#6c757d;font-size:1.1rem}.no-exam-state{display:flex;justify-content:center;align-items:center;min-height:400px}.no-exam-content{text-align:center;padding:40px;background:#fff;border-radius:15px;box-shadow:0 4px 20px #0000001a;max-width:500px}.no-exam-icon{font-size:4rem;color:#8b5cf6;margin-bottom:20px}.no-exam-content h2{color:#2c3e50;margin-bottom:15px;font-size:1.8rem}.no-exam-content p{color:#6c757d;margin-bottom:30px;font-size:1.1rem;line-height:1.6}.create-exam-btn{display:inline-flex;align-items:center;gap:10px;padding:12px 24px;background:linear-gradient(135deg,#8b5cf6,#7c3aed);color:#fff;border:none;border-radius:10px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #8b5cf64d}.create-exam-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #8b5cf666}.exam-content{display:flex;flex-direction:column;gap:30px}.exam-overview{background:#fff;border-radius:15px;padding:25px;box-shadow:0 4px 20px #0000001a}.exam-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px}.exam-info h2{color:#2c3e50;margin:0 0 10px;font-size:1.8rem;font-weight:700}.exam-info p{color:#6c757d;margin:0;font-size:1.1rem;line-height:1.6}.exam-actions{display:flex;gap:10px}.action-btn{display:flex;align-items:center;gap:6px;padding:10px 16px;border:none;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s ease;font-size:.9rem}.delete-btn{background:#ef44441a;color:#ef4444}.delete-btn:hover{background:#ef444433;transform:translateY(-1px)}.exam-details{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;padding-top:20px;border-top:1px solid #e9ecef}.detail-item{display:flex;align-items:center;gap:8px;color:#6c757d;font-weight:500}.exam-stats{background:#fff;border-radius:15px;padding:25px;box-shadow:0 4px 20px #0000001a}.exam-stats h3{color:#2c3e50;margin:0 0 20px;font-size:1.5rem;font-weight:700}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px}.stat-card{text-align:center;padding:20px;background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:12px;border:1px solid #dee2e6}.stat-value{font-size:2rem;font-weight:700;color:#8b5cf6;margin-bottom:5px}.stat-label{color:#6c757d;font-weight:500;font-size:.9rem}.submissions-section{background:#fff;border-radius:15px;padding:25px;box-shadow:0 4px 20px #0000001a}.section-header h3{color:#2c3e50;margin:0;font-size:1.5rem;font-weight:700}.submissions-count{color:#6c757d;font-weight:500;background:#f8f9fa;padding:5px 12px;border-radius:20px;font-size:.9rem}.loading-submissions{display:flex;flex-direction:column;align-items:center;padding:40px 20px;color:#6c757d}.loading-submissions .spinner{width:30px;height:30px;border:3px solid #f3f3f3;border-top:3px solid #8b5cf6;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:15px}.no-submissions{display:flex;flex-direction:column;align-items:center;padding:40px 20px;color:#6c757d}.no-submissions svg{font-size:3rem;margin-bottom:15px;color:#dee2e6}.submissions-list{display:flex;flex-direction:column;gap:15px}.submission-card{display:grid;grid-template-columns:1fr auto auto auto;align-items:center;gap:20px;padding:15px 20px;background:#f8f9fa;border-radius:10px;border:1px solid #e9ecef;transition:all .3s ease}.submission-card:hover{background:#f1f3f4;border-color:#dee2e6}.submission-info .student-name{font-weight:600;color:#2c3e50;margin-bottom:2px}.submission-info .student-email{color:#6c757d;font-size:.9rem}.submission-details{display:flex;flex-direction:column;align-items:center;gap:5px}.submission-details .score{font-weight:600;color:#2c3e50}.submission-details .status{padding:4px 8px;border-radius:12px;font-size:.8rem;font-weight:600;text-transform:uppercase}.submission-date{color:#6c757d;font-size:.9rem;text-align:right}.view-all-submissions{text-align:center;padding:20px;color:#6c757d;font-style:italic}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px;color:#6c757d}@media (max-width: 768px){.final-exam-management{padding:15px}.header-content{flex-direction:column;align-items:flex-start;gap:15px}.exam-header{flex-direction:column;gap:20px}.exam-actions{align-self:stretch}.action-btn{flex:1;justify-content:center}.stats-grid{grid-template-columns:1fr}.submission-card{grid-template-columns:1fr;gap:15px;text-align:center}.submission-date{text-align:center}.submission-actions{justify-content:center}}.header-actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.bulk-certification-btn{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;background:linear-gradient(45deg,#10b981,#059669);color:#fff;border:none;border-radius:.5rem;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .3s ease;white-space:nowrap}.bulk-certification-btn:hover{background:linear-gradient(45deg,#059669,#047857);transform:translateY(-1px);box-shadow:0 4px 12px #10b9814d}.certification-btn{display:flex;align-items:center;gap:.25rem;padding:.5rem .75rem;background:linear-gradient(45deg,#10b981,#059669);color:#fff;border:none;border-radius:.375rem;font-size:.75rem;font-weight:500;cursor:pointer;transition:all .3s ease;white-space:nowrap;min-width:100px;justify-content:center}.certification-btn:hover:not(:disabled){background:linear-gradient(45deg,#059669,#047857);transform:translateY(-1px);box-shadow:0 2px 8px #10b9814d}.certification-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.spinner-small{width:14px;height:14px;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite}.submission-actions{display:flex;gap:.5rem;align-items:center}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.header-actions{justify-content:space-between;width:100%}.bulk-certification-btn{font-size:.75rem;padding:.5rem .75rem}.submission-actions{flex-direction:column;gap:.25rem}.certification-btn{font-size:.7rem;padding:.375rem .5rem;min-width:85px}}.instructor-students-container{padding:1rem;width:100%;max-width:1400px;margin:0 auto}.course-selector{margin:1.5rem 0;background:#1a2135cc;border-radius:12px;padding:2rem;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.course-selector label{display:block;margin-bottom:.8rem;font-weight:600;color:#ffffffe6;font-size:1rem}.course-selector select{width:100%;padding:1rem;background:#121825cc;border:1px solid rgba(79,70,229,.3);border-radius:8px;color:#fff;font-size:1rem;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.course-selector select:focus{outline:none;border-color:#9b87f5;box-shadow:0 0 0 2px #9b87f533}.students-header{display:flex;justify-content:space-between;align-items:center;margin:2rem 0;flex-wrap:wrap;gap:1rem}.search-bar{flex:1;max-width:400px}.search-bar input{padding:.8rem 1.2rem;width:100%;background:#121825cc;border:1px solid rgba(79,70,229,.3);border-radius:8px;color:#fff;font-size:1rem;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.search-bar input::placeholder{color:#ffffff80}.search-bar input:focus{outline:none;border-color:#9b87f5;box-shadow:0 0 0 2px #9b87f533}.student-count{font-weight:600;padding:.8rem 1.2rem;background:#1a2135cc;border-radius:8px;border:1px solid rgba(79,70,229,.2);color:#ffffffe6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.no-students,.select-course-prompt,.no-courses{background:#1a2135cc;border-radius:12px;padding:3rem 2rem;text-align:center;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);margin:2rem 0;box-shadow:0 4px 20px #0000004d}.no-students h3,.select-course-prompt h3,.no-courses h3{color:#ffffffe6;margin-bottom:1rem;font-size:1.3rem}.no-students p,.select-course-prompt p,.no-courses p{color:#ffffffb3;margin-bottom:1.5rem}.students-table-container{overflow-x:auto;background:#1a2135cc;border-radius:12px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.students-table{width:100%;border-collapse:collapse;min-width:800px}.students-table th,.students-table td{padding:1.2rem 1rem;text-align:left;border-bottom:1px solid rgba(255,255,255,.08)}.students-table th{background:#0b1437e6;font-weight:600;color:#ffffffe6;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px;position:sticky;top:0;z-index:10}.students-table td{color:#fffc}.students-table tr:hover td{background:#4f46e514}.students-table tr:last-child td{border-bottom:none}.progress-bar{width:100%;height:24px;background-color:#121825cc;border-radius:12px;overflow:hidden;border:1px solid rgba(79,70,229,.2);position:relative}.progress-fill{height:100%;background:linear-gradient(135deg,#4f46e5,#7c3aed);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.8rem;font-weight:700;min-width:40px;transition:width .6s ease;border-radius:11px;box-shadow:0 2px 8px #4f46e54d}.create-course-btn{display:inline-flex;align-items:center;gap:.8rem;margin-top:1.5rem;padding:1rem 2rem;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s ease;border:none;cursor:pointer}.create-course-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}@media (max-width: 768px){.instructor-students-container{padding:.5rem}.course-selector{margin:1rem 0;padding:1.5rem}.students-header{flex-direction:column;align-items:stretch;gap:1rem}.search-bar{max-width:100%}.students-table-container{margin:1rem 0}.students-table{font-size:.9rem;min-width:600px}.students-table th,.students-table td{padding:1rem .8rem}.no-students,.select-course-prompt,.no-courses{padding:2rem 1.5rem;margin:1.5rem 0}}@media (max-width: 480px){.instructor-students-container{padding:.25rem}.course-selector{padding:1rem}.students-table{font-size:.8rem;min-width:500px}.students-table th,.students-table td{padding:.8rem .6rem}.progress-bar{height:20px}.progress-fill{font-size:.7rem;min-width:30px}.no-students,.select-course-prompt,.no-courses{padding:1.5rem 1rem}}.students-header h2{color:#fffffff2;font-size:1.8rem;font-weight:600;margin:0}.enrollment-date{color:#ffffffb3;font-size:.9rem}.students-table tr{transition:all .2s ease}.students-table tr:nth-child(2n) td{background:#1218254d}.students-table tr:hover{transform:translateY(-1px)}.instructor-submissions{padding:1rem;width:100%;max-width:1400px;margin:0 auto}.instructor-submissions h1{font-size:2rem;color:#fffffff2;margin-bottom:2rem;font-weight:700;background:linear-gradient(135deg,#fff,#9b87f5);-webkit-background-clip:text;background-clip:text;color:transparent}.filters-container{background:#1a2135cc;border-radius:12px;padding:2rem;margin:2rem 0;display:flex;flex-wrap:wrap;gap:1.5rem;align-items:flex-end;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.filter-group{flex:1;min-width:220px}.filter-group label{display:block;margin-bottom:.8rem;font-weight:600;color:#ffffffe6;font-size:.95rem}.filter-group select,.filter-group input{width:100%;padding:.8rem 1rem;background:#121825cc;border:1px solid rgba(79,70,229,.3);border-radius:8px;color:#fff;font-size:1rem;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.filter-group select:focus,.filter-group input:focus{outline:none;border-color:#9b87f5;box-shadow:0 0 0 2px #9b87f533}.filter-group input::placeholder{color:#ffffff80}.status-buttons{display:flex;gap:.8rem;flex-wrap:wrap}.status-buttons button{padding:.8rem 1.2rem;background:#121825cc;border:1px solid rgba(79,70,229,.3);border-radius:8px;color:#fffc;cursor:pointer;transition:all .3s ease;font-weight:500;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.status-buttons button:hover{background:#4f46e533;color:#fff}.status-buttons button.active{background:linear-gradient(135deg,#4f46e5,#7c3aed);border-color:transparent;color:#fff;box-shadow:0 4px 15px #4f46e54d}.no-submissions{background:#1a2135cc;border-radius:12px;padding:3rem 2rem;text-align:center;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);margin-top:2rem;box-shadow:0 4px 20px #0000004d}.no-submissions h3{color:#ffffffe6;margin-bottom:1rem;font-size:1.3rem}.no-submissions p{color:#ffffffb3}.submissions-table-container{overflow-x:auto;margin-top:2rem;background:#1a2135cc;border-radius:12px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.submissions-table{width:100%;border-collapse:collapse;min-width:900px}.submissions-table th,.submissions-table td{padding:1.2rem 1rem;text-align:left;border-bottom:1px solid rgba(255,255,255,.08)}.submissions-table th{background:#0b1437e6;font-weight:600;color:#ffffffe6;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px;position:sticky;top:0;z-index:10}.submissions-table td{color:#fffc}.submissions-table tr:hover td{background:#4f46e514}.submissions-table tr:last-child td{border-bottom:none}.student-info{display:flex;flex-direction:column}.student-info .student-name{font-weight:600;color:#fffffff2;margin-bottom:.3rem}.student-email{font-size:.85rem;color:#fff9}.status-badge{display:inline-block;padding:.4rem 1rem;border-radius:20px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-badge.graded{background:#10b98133;border:1px solid rgba(16,185,129,.4);color:#10b981}.status-badge.submitted{background:#f59e0b33;border:1px solid rgba(245,158,11,.4);color:#f59e0b}.grade-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.6rem 1.2rem;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-radius:8px;text-decoration:none;font-size:.9rem;font-weight:500;transition:all .3s ease;border:none;cursor:pointer}.grade-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 4px 15px #4f46e54d}.quiz-title{font-weight:600;color:#fffffff2}.submission-date{color:#ffffffb3;font-size:.9rem}@media (max-width: 768px){.instructor-submissions{padding:.5rem}.instructor-submissions h1{font-size:1.8rem;margin-bottom:1.5rem}.filters-container{flex-direction:column;gap:1.5rem;padding:1.5rem}.filter-group{width:100%;min-width:auto}.status-buttons{width:100%;justify-content:stretch}.status-buttons button{flex:1;min-width:0;text-align:center}.submissions-table-container{margin-top:1.5rem}.submissions-table{font-size:.9rem;min-width:700px}.submissions-table th,.submissions-table td{padding:1rem .8rem}.no-submissions{padding:2rem 1.5rem;margin-top:1.5rem}}@media (max-width: 480px){.instructor-submissions{padding:.25rem}.instructor-submissions h1{font-size:1.6rem}.filters-container{padding:1rem}.status-buttons{flex-direction:column}.submissions-table{font-size:.8rem;min-width:600px}.submissions-table th,.submissions-table td{padding:.8rem .6rem}.grade-btn{padding:.5rem 1rem;font-size:.8rem}.no-submissions{padding:1.5rem 1rem}}.submissions-table tr{transition:all .2s ease}.submissions-table tr:nth-child(2n) td{background:#1218254d}.submissions-table tr:hover{transform:translateY(-1px)}.filter-group select option{background:#121825e6;color:#fff}.instructor-attendance-container{padding:1rem;color:#ffffffe6;max-width:1400px;margin:0 auto}.attendance-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2.5rem;flex-wrap:wrap;gap:1rem}.attendance-header h1{font-size:2rem;color:#fffffff2;margin:0;font-weight:700;background:linear-gradient(135deg,#fff,#9b87f5);-webkit-background-clip:text;background-clip:text;color:transparent}.view-toggle-container{display:flex;gap:.8rem;flex-wrap:wrap}.view-toggle-btn{display:flex;align-items:center;gap:.8rem;padding:.8rem 1.2rem;border:1px solid rgba(79,70,229,.3);background:#121825cc;color:#fffc;border-radius:8px;cursor:pointer;transition:all .3s ease;font-weight:500;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.view-toggle-btn:hover{background:#4f46e533;color:#fff;transform:translateY(-2px)}.view-toggle-btn.active{background:linear-gradient(135deg,#4f46e5,#7c3aed);border-color:transparent;color:#fff;box-shadow:0 4px 15px #4f46e54d}.attendance-controls{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding:2rem;background:#1a2135cc;border-radius:12px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d;flex-wrap:wrap;gap:1.5rem}.date-selector{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.date-selector label{font-size:1rem;color:#ffffffe6;font-weight:600}.date-selector input[type=date]{background:#121825cc;border:1px solid rgba(79,70,229,.3);padding:.8rem 1rem;border-radius:8px;color:#fff;font-size:1rem;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.date-selector input[type=date]:focus{outline:none;border-color:#9b87f5;box-shadow:0 0 0 2px #9b87f533}.bulk-actions{display:flex;gap:1rem;flex-wrap:wrap}.mark-all-btn{display:flex;align-items:center;gap:.8rem;padding:.8rem 1.5rem;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease;color:#fff;font-weight:600;font-size:.95rem}.mark-all-btn.present{background:linear-gradient(135deg,#10b981cc,#059669cc)}.mark-all-btn.present:hover{background:linear-gradient(135deg,#10b981,#059669);transform:translateY(-2px);box-shadow:0 4px 15px #10b9814d}.mark-all-btn.absent{background:linear-gradient(135deg,#ef4444cc,#dc2626cc)}.mark-all-btn.absent:hover{background:linear-gradient(135deg,#ef4444,#dc2626);transform:translateY(-2px);box-shadow:0 4px 15px #ef44444d}.attendance-table-container{width:100%;overflow-x:auto;margin-bottom:2rem;background:#1a2135cc;border-radius:12px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.attendance-table{width:100%;border-collapse:collapse;min-width:800px}.attendance-table th{padding:1.5rem 1rem;text-align:left;border-bottom:1px solid rgba(255,255,255,.1);color:#ffffffe6;background:#0b1437e6;font-weight:600;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px;position:sticky;top:0;z-index:10}.attendance-table th:first-child{border-top-left-radius:12px}.attendance-table th:last-child{border-top-right-radius:12px}.attendance-table td{padding:1.2rem 1rem;border-bottom:1px solid rgba(255,255,255,.08);color:#fffc}.attendance-table tr:last-child td{border-bottom:none}.attendance-table tr.present{background:#10b9811a}.attendance-table tr.absent{background:#ef44441a}.attendance-table tr:hover td{background:#4f46e514}.attendance-table tr{transition:all .2s ease}.attendance-table tr:nth-child(2n) td{background:#1218254d}.student-name{font-weight:600;color:#fffffff2}.student-email{font-size:.85rem;color:#fff9;margin-top:.2rem}.attendance-toggle{display:flex;align-items:center;position:relative}.attendance-toggle input{opacity:0;width:0;height:0}.toggle-slider{position:relative;display:inline-block;width:50px;height:26px;background:#ef444499;border-radius:26px;cursor:pointer;margin-right:1rem;transition:all .3s;border:2px solid rgba(255,255,255,.1)}.toggle-slider:before{position:absolute;content:"";height:20px;width:20px;left:3px;bottom:1px;background-color:#fff;border-radius:50%;transition:all .3s;box-shadow:0 2px 4px #0003}input:checked+.toggle-slider{background:#10b981cc;border-color:#10b9814d}input:checked+.toggle-slider:before{transform:translate(24px)}.toggle-label{font-size:.95rem;font-weight:500;color:#fffc}.attendance-table input[type=text]{width:100%;background:#121825cc;border:1px solid rgba(79,70,229,.3);padding:.6rem;border-radius:6px;color:#ffffffe6;font-size:.9rem;transition:all .3s ease}.attendance-table input[type=text]:focus{outline:none;border-color:#9b87f5;box-shadow:0 0 0 2px #9b87f533}.save-attendance{display:flex;justify-content:flex-end;margin-top:2rem}.save-btn{display:flex;align-items:center;gap:.8rem;padding:1rem 2rem;background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border:none;border-radius:8px;cursor:pointer;transition:all .3s ease;font-size:1rem;font-weight:600}.save-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}.save-btn:disabled{background:#6b728080;cursor:not-allowed;transform:none;box-shadow:none}.loading,.no-students{text-align:center;padding:3rem 2rem;font-size:1.1rem;color:#ffffffb3;background:#1a2135cc;border-radius:12px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.no-students h3{color:#ffffffe6;margin-bottom:1rem;font-size:1.3rem}.no-students p{color:#ffffffb3;line-height:1.6}.attendance-summary-container{padding:2rem;background:#1a2135cc;border-radius:12px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);border:1px solid rgba(79,70,229,.2);box-shadow:0 4px 20px #0000004d}.attendance-summary-container h2{margin-top:0;margin-bottom:2rem;font-size:1.8rem;color:#fffffff2;font-weight:600}.summary-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;margin-bottom:3rem}.stats-card{padding:2rem;background:#121825cc;border-radius:12px;text-align:center;border:1px solid rgba(79,70,229,.2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 15px #0003;transition:all .3s ease}.stats-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px #4f46e54d}.stats-card h3{margin-top:0;margin-bottom:.8rem;font-size:1rem;color:#fffc;text-transform:uppercase;letter-spacing:.5px;font-weight:500}.stats-value{font-size:2.2rem;font-weight:700;color:#fff;margin-bottom:0}.attendance-dates h3{margin-bottom:1.5rem;font-size:1.3rem;color:#ffffffe6;font-weight:600}.date-chips{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2rem}.date-chip{padding:.8rem 1.2rem;background:#121825cc;border:1px solid rgba(79,70,229,.3);border-radius:8px;color:#ffffffe6;cursor:pointer;transition:all .3s ease;font-weight:500}.date-chip:hover{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;transform:translateY(-2px);box-shadow:0 4px 15px #4f46e54d}.more-dates{padding:.8rem 1.2rem;background:#12182599;border-radius:8px;color:#ffffffb3;font-style:italic}.no-attendance-dates{text-align:center;padding:3rem 0}.no-attendance-dates p{margin-bottom:2rem;color:#ffffffb3;font-size:1.1rem;line-height:1.6}.record-first-btn{padding:1rem 2rem;background:linear-gradient(135deg,#4f46e5,#7c3aed);border:none;border-radius:8px;color:#fff;cursor:pointer;transition:all .3s ease;font-size:1rem;font-weight:600}.record-first-btn:hover{background:linear-gradient(135deg,#4338ca,#6d28d9);transform:translateY(-2px);box-shadow:0 8px 25px #4f46e54d}@media (max-width: 768px){.instructor-attendance-container{padding:.5rem}.attendance-header{flex-direction:column;align-items:stretch;gap:1.5rem;margin-bottom:2rem}.attendance-header h1{font-size:1.8rem;text-align:center}.view-toggle-container{justify-content:center}.attendance-controls{flex-direction:column;align-items:stretch;gap:1.5rem;padding:1.5rem}.date-selector,.bulk-actions{justify-content:center}.mark-all-btn{flex:1;justify-content:center}.attendance-table-container{margin-bottom:1.5rem}.attendance-table{font-size:.9rem;min-width:600px}.attendance-table th,.attendance-table td{padding:1rem .8rem}.summary-stats{grid-template-columns:1fr;gap:1rem;margin-bottom:2rem}.stats-card{padding:1.5rem}.date-chips,.save-attendance{justify-content:center}.no-students,.loading{padding:2rem 1.5rem}.attendance-summary-container{padding:1.5rem}}@media (max-width: 480px){.instructor-attendance-container{padding:.25rem}.attendance-header h1{font-size:1.6rem}.view-toggle-btn{padding:.6rem 1rem;font-size:.9rem}.attendance-controls{padding:1rem}.date-selector{flex-direction:column;align-items:stretch}.bulk-actions{flex-direction:column}.attendance-table{font-size:.8rem;min-width:500px}.attendance-table th,.attendance-table td{padding:.8rem .6rem}.toggle-slider{width:40px;height:22px}.toggle-slider:before{height:16px;width:16px}input:checked+.toggle-slider:before{transform:translate(18px)}.stats-value{font-size:1.8rem}.date-chips{flex-direction:column}.no-students,.loading{padding:1.5rem 1rem}.attendance-summary-container{padding:1rem}}.attendance-table tr:hover .toggle-slider{transform:scale(1.05)}.stats-card:first-child .stats-value{color:#10b981}.stats-card:nth-child(2) .stats-value{color:#ef4444}.stats-card:nth-child(3) .stats-value{color:#9b87f5}.date-selector input[type=date]::-webkit-calendar-picker-indicator{filter:invert(1)}.messaging-container{max-width:100%;margin:0;padding:0;height:100vh;display:flex;flex-direction:column;background:#0b141a;color:#e9edef}.messaging-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;border-bottom:1px solid #2a3942;background:#202c33;min-height:60px;max-height:60px;box-shadow:0 2px 4px #00000026}.messaging-header h1{color:#e9edef;margin:0;font-size:18px;font-weight:600}.course-selector{display:flex;align-items:center;gap:10px}.course-select{padding:8px 12px;border:1px solid #2a3942;border-radius:8px;background:#2a3942;color:#e9edef;font-size:13px;min-width:150px;transition:all .2s ease}.course-select:focus{outline:none;border-color:#00a884;box-shadow:0 0 0 2px #00a88433}.admin-messaging-indicator,.instructor-messaging-note{font-size:13px;color:#8696a0;display:flex;align-items:center;gap:8px;padding:8px 16px;background:#00a8841a;border-radius:6px}.messaging-content{display:flex;flex:1;height:calc(100vh - 60px);overflow:hidden}.messaging-sidebar{width:380px;background:#111b21;border-right:1px solid #2a3942;display:flex;flex-direction:column;flex-shrink:0}.messaging-main{flex:1;background:#0b141a;display:flex;flex-direction:column;position:relative;min-width:0}.messaging-main:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:radial-gradient(circle at 25% 25%,rgba(255,255,255,.02) 1px,transparent 1px),radial-gradient(circle at 75% 75%,rgba(255,255,255,.02) 1px,transparent 1px);background-size:50px 50px;pointer-events:none;opacity:.3}.conversation-list{height:100%;display:flex;flex-direction:column}.conversation-list-header{padding:16px 20px;border-bottom:1px solid #2a3942;display:flex;justify-content:space-between;align-items:center;background:#202c33;min-height:56px}.conversation-list-header h3{margin:0;color:#e9edef;font-size:17px;font-weight:600}.new-conversation-btn{background:linear-gradient(135deg,#00a884,#06cf9c);color:#fff;border:none;border-radius:50%;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;font-size:14px;box-shadow:0 2px 8px #00a8844d}.new-conversation-btn:hover{transform:scale(1.1);box-shadow:0 4px 12px #00a88466}.conversations{flex:1;overflow-y:auto}.conversations::-webkit-scrollbar{width:4px}.conversations::-webkit-scrollbar-track{background:#111b21}.conversations::-webkit-scrollbar-thumb{background:#2a3942;border-radius:2px}.conversation-item{padding:12px 16px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:12px;border-bottom:1px solid rgba(42,57,66,.3);min-height:72px;position:relative}.conversation-item:hover{background:#2a3942}.conversation-item.selected{background:#2a3942;border-right:3px solid #00a884}.conversation-avatar{position:relative;flex-shrink:0}.avatar-circle{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#00a884,#06cf9c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px;box-shadow:0 2px 8px #0003}.conversation-info{flex:1;min-width:0}.conversation-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}.conversation-name{font-weight:500;color:#e9edef;display:flex;align-items:center;gap:6px;font-size:15px}.conversation-time{font-size:11px;color:#8696a0;flex-shrink:0}.conversation-preview{display:flex;justify-content:space-between;align-items:center;gap:8px}.last-message{color:#8696a0;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;line-height:1.3}.search-container{padding:12px 16px;border-bottom:1px solid #2a3942;background:#111b21}.search-input-wrapper{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:12px;color:#8696a0;font-size:14px;z-index:1}.search-input{width:100%;padding:10px 12px 10px 36px;border:1px solid #2a3942;border-radius:20px;background:#2a3942;color:#e9edef;font-size:14px;outline:none;transition:all .2s ease}.search-input::placeholder{color:#8696a0}.search-input:focus{border-color:#00a884;background:#3b4a54;box-shadow:0 0 0 2px #00a88433}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:#202c33;border-radius:12px;max-width:480px;width:90%;max-height:75vh;overflow:hidden;box-shadow:0 8px 24px #0006;animation:slideIn .3s ease-out}@keyframes slideIn{0%{transform:scale(.9) translateY(-20px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.modal-header{padding:16px 20px;border-bottom:1px solid #2a3942;display:flex;justify-content:space-between;align-items:center;background:#111b21}.modal-header h3{margin:0;color:#e9edef;font-size:16px;font-weight:500}.close-button{background:none;border:none;font-size:18px;cursor:pointer;color:#8696a0;padding:8px;border-radius:50%;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.close-button:hover{color:#e9edef;background:#2a3942}.modal-body{padding:16px;max-height:400px;overflow-y:auto}.modal-body::-webkit-scrollbar{width:4px}.modal-body::-webkit-scrollbar-track{background:#202c33}.modal-body::-webkit-scrollbar-thumb{background:#2a3942;border-radius:2px}.members-list{display:flex;flex-direction:column;gap:8px;margin-top:8px}.member-item{padding:12px 14px;border:1px solid #2a3942;border-radius:10px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:12px;background:#111b21}.member-item:hover{background:#2a3942;border-color:#00a884;transform:translateY(-1px);box-shadow:0 2px 8px #00a88433}.member-avatar{position:relative;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#00a884,#06cf9c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;flex-shrink:0}.member-info{flex:1}.member-name{font-weight:500;color:#e9edef;display:flex;align-items:center;gap:6px;font-size:14px;margin-bottom:2px}.member-role{font-size:12px;color:#8696a0;margin-bottom:2px}.member-status{font-size:11px}.status-online{color:#00a884;font-weight:500}.status-offline{color:#8696a0}.loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px;color:#8696a0;background:#0b141a}.loading-spinner{width:32px;height:32px;border:3px solid #2a3942;border-top:3px solid #00a884;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:12px}.no-conversations,.no-members{text-align:center;padding:40px 20px;color:#8696a0}.empty-state h4{color:#e9edef;font-size:16px;margin-bottom:8px}.empty-state p{color:#8696a0;font-size:14px}.no-conversation-selected{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;background:#0b141a;text-align:center;padding:40px}.no-conversation-selected h3{margin-bottom:8px;color:#e9edef;font-weight:500;font-size:18px}.no-conversation-selected p{color:#8696a0;font-size:14px;margin:4px 0}.instructor-hint{font-size:13px!important;margin-top:16px!important;padding:12px;background:#00a8841a;border-radius:8px;border-left:3px solid #00a884}.admin-badge,.admin-badge-chat{color:#3b82f6;font-size:14px;margin-left:6px}.admin-check{color:#3b82f6;font-size:10px}.unread-badge{background:linear-gradient(135deg,#00a884,#06cf9c);color:#fff;border-radius:12px;padding:2px 8px;font-size:10px;font-weight:600;min-width:18px;text-align:center;flex-shrink:0;line-height:1.2;box-shadow:0 1px 4px #00a8844d}.online-indicator{position:absolute;bottom:2px;right:2px;color:#00a884;font-size:10px;background:#111b21;border-radius:50%;padding:1px}.chat-window{height:100%;display:flex;flex-direction:column;position:relative;z-index:1}.chat-header{padding:12px 16px;border-bottom:1px solid #2a3942;background:#202c33;box-shadow:0 1px 2px #0000001a;min-height:64px;display:flex;align-items:center}.chat-user-info{display:flex;align-items:center;gap:12px}.chat-avatar{position:relative;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#00a884,#06cf9c);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px;flex-shrink:0}.chat-user-details h3{margin:0;color:#e9edef;display:flex;align-items:center;gap:6px;font-size:15px;font-weight:500}.user-status{font-size:12px;color:#8696a0;margin-top:1px}.chat-messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:6px;position:relative;z-index:1}.chat-messages::-webkit-scrollbar{width:4px}.chat-messages::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:#8696a04d;border-radius:2px}.message{max-width:70%;display:flex;flex-direction:column;gap:2px;margin:1px 0}.message.sent{align-self:flex-end}.message.received{align-self:flex-start}.message-content{padding:8px 12px;border-radius:8px;word-wrap:break-word;line-height:1.4;font-size:14px;position:relative;box-shadow:0 1px 1px #0003;margin-bottom:2px}.message.sent .message-content{background:#005c4b;color:#e9edef;border-bottom-right-radius:3px}.message.received .message-content{background:#202c33;color:#e9edef;border-bottom-left-radius:3px}.chat-input-form{padding:12px 16px;background:#202c33;border-top:1px solid #2a3942}.chat-input-container{display:flex;gap:8px;align-items:end}.chat-input{flex:1;padding:10px 16px;border:none;border-radius:22px;outline:none;font-size:15px;background:#2a3942;color:#e9edef;resize:none;max-height:100px;min-height:40px;line-height:1.4;transition:background .2s ease}.chat-input::placeholder{color:#8696a0}.chat-input:focus{background:#3b4a54}.send-button{background:linear-gradient(135deg,#00a884,#06cf9c);color:#fff;border:none;border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;font-size:16px;flex-shrink:0;box-shadow:0 2px 8px #00a8844d}.send-button:hover:not(:disabled){transform:scale(1.05);box-shadow:0 4px 12px #00a88466}.send-button:disabled{background:#3b4a54;cursor:not-allowed;transform:none;box-shadow:none}@media (max-width: 1024px){.messaging-sidebar{width:320px}.message{max-width:75%}}@media (max-width: 768px){.messaging-header{padding:10px 16px;min-height:56px;max-height:56px}.messaging-header h1{font-size:16px}.course-select{min-width:120px;font-size:12px}.admin-messaging-indicator,.instructor-messaging-note{font-size:12px}.messaging-content{height:calc(100vh - 56px);position:relative}.messaging-sidebar{position:absolute;left:0;top:0;height:100%;z-index:10;transform:translate(-100%);transition:transform .3s ease;width:100%;max-width:320px}.messaging-sidebar.mobile-open{transform:translate(0);box-shadow:4px 0 12px #0000004d}.messaging-main{width:100%}.modal-content{width:95%;max-height:80vh}}@media (max-width: 480px){.modal-content{width:98%;margin:10px;border-radius:8px}.member-item{padding:10px 12px}.member-avatar{width:32px;height:32px;font-size:13px}}.social-icons{display:flex;gap:8px;margin-top:8px}.course-overview-page{padding:1.5rem}.overview-header{margin-bottom:2rem}.overview-header h1{font-size:1.8rem;color:#fff;margin-bottom:1.5rem}.overview-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{background:#1e1e2db3;border-radius:8px;padding:1.5rem;display:flex;align-items:center;gap:1rem;box-shadow:0 4px 15px #0003}.stat-icon{font-size:2rem;color:#385ea7}.stat-info{display:flex;flex-direction:column}.stat-number{font-size:1.8rem;font-weight:600;color:#fff}.stat-label{font-size:.9rem;color:#b1b1b1}.loading-container{display:flex;justify-content:center;align-items:center;height:200px;color:#b1b1b1;font-size:1.1rem}.courses-container{display:flex;flex-direction:column;gap:1rem}.course-card{background:#1e1e2d80;border-radius:8px;box-shadow:0 4px 15px #0003;overflow:hidden;transition:all .3s ease}.course-card:hover{box-shadow:0 6px 20px #0000004d}.course-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;cursor:pointer;transition:background .2s}.course-header:hover{background:#28283c4d}.course-info{flex:1}.course-title{font-size:1.3rem;color:#fff;margin-bottom:.5rem;font-weight:600}.course-description{color:#b1b1b1;margin-bottom:1rem;line-height:1.5}.course-meta{display:flex;flex-wrap:wrap;gap:1rem;align-items:center}.course-category{background:#385ea733;color:#64b5f6;padding:.25rem .75rem;border-radius:12px;font-size:.8rem;font-weight:500}.course-price{display:flex;align-items:center;gap:.25rem;color:#81c784;font-weight:500}.course-duration{display:flex;align-items:center;gap:.25rem;color:#ffb74d}.course-instructor{display:flex;align-items:center;gap:.25rem;color:#e57373}.course-stats{display:flex;align-items:center;gap:1rem}.stat{display:flex;align-items:center;gap:.5rem;color:#b1b1b1;font-size:.9rem}.expand-icon{color:#385ea7;font-size:1.2rem;margin-left:1rem}.course-details{border-top:1px solid rgba(255,255,255,.1);padding:1.5rem;background:#1919234d}.lectures-section,.quizzes-section{margin-bottom:2rem}.lectures-section:last-child,.quizzes-section:last-child{margin-bottom:0}.lectures-section h4,.quizzes-section h4{display:flex;align-items:center;gap:.5rem;color:#fff;margin-bottom:1rem;font-size:1.1rem;font-weight:600}.lectures-list,.quizzes-list{display:grid;gap:.75rem}.lecture-item,.quiz-item{background:#28283c80;border-radius:6px;padding:1rem;border-left:3px solid #385ea7}.lecture-item h5,.quiz-item h5{color:#fff;margin-bottom:.5rem;font-size:1rem;font-weight:500}.lecture-item p{color:#b1b1b1;font-size:.9rem;margin-bottom:.5rem;line-height:1.4}.lecture-type{background:#4caf5033;color:#81c784;padding:.2rem .5rem;border-radius:8px;font-size:.75rem;font-weight:500;text-transform:capitalize}.quiz-meta{display:flex;gap:1rem;color:#b1b1b1;font-size:.85rem}.no-courses,.no-content{text-align:center;color:#b1b1b1;padding:2rem;font-style:italic}@media (max-width: 768px){.course-overview-page{padding:1rem}.overview-stats{grid-template-columns:1fr}.course-header{flex-direction:column;align-items:flex-start;gap:1rem}.course-stats{align-self:flex-end}.course-meta{flex-direction:column;align-items:flex-start;gap:.5rem}.quiz-meta{flex-direction:column;gap:.25rem}}.final-exam-container{max-width:1000px;margin:0 auto;padding:20px;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.exam-header{background:#fffffff2;border-radius:15px;padding:30px;margin-bottom:30px;box-shadow:0 10px 30px #0003}.exam-header h1{color:#333;margin-bottom:10px;font-size:2.5rem;font-weight:700}.exam-header p{color:#666;font-size:1.1rem;margin-bottom:20px}.exam-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-top:20px}.info-item{display:flex;align-items:center;gap:8px;padding:12px;background:#f8f9fa;border-radius:8px;font-weight:600;color:#555}.info-item svg{color:#667eea}.questions-section{space-y:20px}.question-card{background:#fffffff2;border-radius:15px;padding:25px;margin-bottom:20px;box-shadow:0 5px 20px #0000001a}.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid #e9ecef}.question-header h3{color:#333;font-size:1.3rem;font-weight:600}.marks{background:#667eea;color:#fff;padding:4px 12px;border-radius:20px;font-size:.9rem;font-weight:600}.question-text{font-size:1.1rem;color:#444;margin-bottom:20px;line-height:1.6}.options-list{display:flex;flex-direction:column;gap:12px}.option-label{display:flex;align-items:center;gap:12px;padding:15px;background:#f8f9fa;border-radius:10px;cursor:pointer;transition:all .3s ease;border:2px solid transparent}.option-label:hover{background:#e9ecef;transform:translate(5px)}.option-label input[type=radio]:checked+span{font-weight:600;color:#667eea}.option-label input[type=radio]:checked{accent-color:#667eea}.option-label input[type=radio]{width:18px;height:18px}.written-answer textarea{width:100%;padding:15px;border:2px solid #e9ecef;border-radius:10px;font-size:1rem;font-family:inherit;resize:vertical;transition:border-color .3s ease}.written-answer textarea:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.exam-footer{display:flex;justify-content:center;margin-top:30px}.submit-exam-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:15px 40px;border-radius:50px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 5px 15px #667eea66}.submit-exam-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px #667eea99}.submit-exam-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.submission-result{background:#fffffff2;border-radius:15px;padding:40px;text-align:center;box-shadow:0 10px 30px #0003}.result-header{margin-bottom:30px}.result-header.passed{color:#28a745}.result-header.failed{color:#dc3545}.result-header svg{font-size:3rem;margin-bottom:15px}.result-header h2{font-size:2.5rem;font-weight:700;margin:0}.result-details{margin-bottom:30px}.score-display{margin-bottom:25px}.score-display h3{font-size:2rem;color:#333;margin-bottom:10px}.score-display p{font-size:1.2rem;color:#666}.pass-message,.fail-message{background:#f8f9fa;padding:20px;border-radius:10px;margin:20px 0}.pass-message{border-left:4px solid #28a745}.fail-message{border-left:4px solid #dc3545}.feedback-section{background:#e9ecef;padding:20px;border-radius:10px;margin-top:20px;text-align:left}.feedback-section h4{color:#333;margin-bottom:10px}.action-buttons{display:flex;justify-content:center;gap:15px}.return-btn{background:#6c757d;color:#fff;border:none;padding:12px 30px;border-radius:25px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.return-btn:hover{background:#5a6268;transform:translateY(-2px)}@media (max-width: 768px){.final-exam-container{padding:15px}.exam-header{padding:20px}.exam-header h1{font-size:2rem}.exam-info{grid-template-columns:1fr}.question-card{padding:20px}.question-header{flex-direction:column;align-items:flex-start;gap:10px}.submission-result{padding:25px}.result-header h2{font-size:2rem}.score-display h3{font-size:1.5rem}}.certificate-preview-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000c;display:flex;justify-content:center;align-items:center;z-index:1000;padding:20px}.certificate-preview-overlay.fullscreen{padding:0}.certificate-preview-container{background:#fff;border-radius:8px;width:90%;max-width:1000px;height:85vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 40px #0000004d}.certificate-preview-overlay.fullscreen .certificate-preview-container{width:100%;height:100vh;border-radius:0;max-width:none}.preview-header{padding:15px 20px;border-bottom:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center;background:#f8f9fa}.preview-header h3{margin:0;color:#333;font-size:18px}.preview-actions{display:flex;gap:10px}.action-btn{padding:8px 12px;border:none;border-radius:4px;background:#6c757d;color:#fff;cursor:pointer;display:flex;align-items:center;gap:5px;font-size:14px;transition:background-color .2s}.action-btn:hover{background:#5a6268}.action-btn.download{background:#28a745}.action-btn.download:hover{background:#218838}.action-btn.close{background:#dc3545}.action-btn.close:hover{background:#c82333}.preview-content{flex:1;padding:0;overflow:hidden}.certificate-iframe{width:100%;height:100%;border:none;background:#f5f5f5}@media (max-width: 768px){.certificate-preview-overlay{padding:10px}.certificate-preview-container{width:95%;height:80vh}.preview-header{padding:10px 15px}.preview-header h3{font-size:16px}.action-btn{padding:6px 10px;font-size:12px}}.certificate-iframe:before{content:"Loading certificate...";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#666;font-size:16px}.certificates-container{max-width:1200px;margin:0 auto;padding:20px;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:50vh;color:#fff}.certificates-header{text-align:center;margin-bottom:40px;color:#fff}.certificates-header h1{font-size:3rem;font-weight:700;margin-bottom:10px;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.certificates-header p{font-size:1.2rem;opacity:.9}.no-certificates{text-align:center;background:#fffffff2;border-radius:20px;padding:60px 40px;box-shadow:0 15px 35px #0003}.no-cert-icon{font-size:4rem;color:#667eea;margin-bottom:20px}.no-certificates h2{color:#333;font-size:2rem;margin-bottom:15px}.no-certificates p{color:#666;font-size:1.1rem;margin-bottom:30px}.browse-courses-btn{display:inline-block;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;text-decoration:none;padding:15px 30px;border-radius:50px;font-weight:600;transition:all .3s ease;box-shadow:0 5px 15px #667eea66}.browse-courses-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px #667eea99}.certificates-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:25px}.certificate-card{background:#fffffff2;border-radius:20px;padding:25px;box-shadow:0 10px 25px #0000001a;transition:all .3s ease;border:1px solid rgba(255,255,255,.2)}.certificate-header{display:flex;align-items:center;gap:15px;margin-bottom:20px;padding-bottom:15px;border-bottom:2px solid #f8f9fa}.cert-icon{font-size:2.5rem;color:#667eea;background:#667eea1a;padding:15px;border-radius:50%}.certificate-info h3{color:#333;font-size:1.3rem;font-weight:700;margin-bottom:5px}.cert-number{color:#667eea;font-size:.9rem;font-weight:600;background:#667eea1a;padding:4px 8px;border-radius:12px;display:inline-block}.certificate-content{margin-bottom:20px}.course-description{color:#666;line-height:1.6;margin-bottom:15px}.certificate-meta{display:flex;flex-direction:column;gap:8px}.meta-item{display:flex;align-items:center;gap:8px;color:#555;font-size:.9rem}.meta-item svg{color:#667eea;width:14px;height:14px}.certificate-actions{display:flex;gap:10px}.download-btn,.view-btn{flex:1;padding:12px 16px;border:none;border-radius:10px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:8px}.download-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 12px #667eea4d}.download-btn:hover{transform:translateY(-2px);box-shadow:0 6px 18px #667eea66}.view-btn{background:#f8f9fa;color:#667eea;border:2px solid #667eea}.view-btn:hover{background:#667eea;color:#fff;transform:translateY(-2px)}@media (max-width: 768px){.certificates-container{padding:15px}.certificates-header h1{font-size:2.5rem}.certificates-grid{grid-template-columns:1fr}.certificate-card{padding:20px}.certificate-header{flex-direction:column;text-align:center}.cert-icon{font-size:2rem;padding:12px}.certificate-actions{flex-direction:column}.no-certificates{padding:40px 20px}.no-cert-icon{font-size:3rem}}@media (max-width: 480px){.certificates-header h1{font-size:2rem}.certificate-info h3{font-size:1.1rem}.download-btn,.view-btn{padding:10px 12px;font-size:.9rem}}.certification-management{padding:20px}.page-header{margin-bottom:30px}.page-header h1{color:#fff;font-size:2.5rem;font-weight:700;margin-bottom:10px}.page-header p{color:#fffc;font-size:1.1rem}.filters-section{margin-bottom:30px}.filter-buttons{display:flex;gap:15px;flex-wrap:wrap}.filter-btn{padding:12px 20px;border:2px solid rgba(255,255,255,.3);background:#ffffff1a;color:#fff;border-radius:25px;cursor:pointer;transition:all .3s ease;font-weight:600}.filter-btn:hover{background:#fff3;transform:translateY(-2px)}.filter-btn.active{background:#fff;color:#667eea;border-color:#fff}.no-requests{text-align:center;background:#ffffff1a;border-radius:20px;padding:60px 40px;color:#fff}.no-requests-icon{font-size:4rem;margin-bottom:20px;opacity:.7}.no-requests h2{font-size:2rem;margin-bottom:15px}.requests-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(400px,1fr));gap:20px}.request-card{background:#fffffff2;border-radius:15px;padding:25px;box-shadow:0 10px 25px #0000001a;transition:all .3s ease}.request-card:hover{transform:translateY(-5px);box-shadow:0 15px 35px #00000026}.request-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px;padding-bottom:15px;border-bottom:2px solid #f8f9fa}.student-info{display:flex;align-items:center;gap:12px}.user-icon{background:#667eea;color:#fff;padding:10px;border-radius:50%;font-size:1.2rem}.student-info h3{color:#333;font-size:1.2rem;font-weight:700;margin-bottom:5px}.student-info p{color:#666;font-size:.9rem}.status-badge{display:flex;align-items:center;gap:6px;padding:8px 12px;border-radius:20px;color:#fff;font-size:.8rem;font-weight:700;text-transform:uppercase}.request-content{margin-bottom:20px}.course-info h4{color:#333;font-size:1.3rem;font-weight:600;margin-bottom:10px}.course-info p{color:#666;font-size:.9rem;margin-bottom:5px}.exam-info{background:#f8f9fa;padding:15px;border-radius:10px;margin:15px 0}.exam-info p{margin-bottom:5px;color:#555}.notes-section{background:#e9ecef;padding:15px;border-radius:10px;margin-top:15px}.notes-section strong{color:#333}.notes-section p{color:#666;margin-top:8px}.request-actions{display:flex;gap:10px;flex-wrap:wrap}.approve-btn,.upload-btn,.view-btn{padding:10px 16px;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:6px;flex:1;justify-content:center}.approve-btn{background:#28a745;color:#fff}.approve-btn:hover{background:#218838;transform:translateY(-2px)}.upload-btn{background:#007bff;color:#fff}.upload-btn:hover{background:#0056b3;transform:translateY(-2px)}.view-btn{background:#6c757d;color:#fff}.view-btn:hover{background:#545b62;transform:translateY(-2px)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.upload-modal{background:#fff;border-radius:15px;width:90%;max-width:500px;max-height:90vh;overflow-y:auto;position:relative}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:25px;border-bottom:2px solid #f8f9fa}.modal-header h2{color:#333;font-size:1.5rem;font-weight:700}.close-btn{background:none;border:none;font-size:1.5rem;color:#666;cursor:pointer;padding:5px;border-radius:50%;transition:all .3s ease}.close-btn:hover{background:#f8f9fa;color:#333}.modal-content{padding:25px}.student-details{text-align:center;margin-bottom:25px;padding:20px;background:#f8f9fa;border-radius:10px}.student-details h3{color:#333;font-size:1.3rem;margin-bottom:5px}.student-details p{color:#667eea;font-weight:600}.upload-section{margin-bottom:25px}.upload-label{display:flex;align-items:center;justify-content:center;gap:10px;padding:40px 20px;border:2px dashed #667eea;border-radius:10px;background:#667eea0d;color:#667eea;font-weight:600;cursor:pointer;transition:all .3s ease}.upload-label:hover{background:#667eea1a;border-color:#5a67d8}.modal-actions{display:flex;gap:15px;justify-content:flex-end}.cancel-btn{padding:12px 25px;border:2px solid #6c757d;background:transparent;color:#6c757d;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease}.cancel-btn:hover:not(:disabled){background:#6c757d;color:#fff}.cancel-btn:disabled{opacity:.5;cursor:not-allowed}.upload-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#ffffffe6;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:15px}.upload-overlay .spinner{border-color:#667eea;border-top-color:transparent}@media (max-width: 768px){.certification-management{padding:15px}.page-header h1{font-size:2rem}.filter-buttons{justify-content:center}.requests-grid{grid-template-columns:1fr}.request-card{padding:20px}.request-header{flex-direction:column;gap:15px;align-items:flex-start}.request-actions{flex-direction:column}.upload-modal{width:95%;margin:20px}.modal-content{padding:20px}}.final-exam-creation{max-width:1000px;margin:0 auto;padding:20px}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px;color:#fff}.spinner{width:40px;height:40px;border:4px solid rgba(255,255,255,.3);border-top:4px solid white;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:20px}.exam-header{text-align:center;margin-bottom:30px;color:#fff}.exam-header h1{font-size:2.5rem;font-weight:700;margin-bottom:10px}.exam-header p{font-size:1.1rem;opacity:.9}.exam-form{background:#fffffff2;border-radius:15px;padding:30px;box-shadow:0 10px 30px #0003}.basic-info-section,.questions-section{margin-bottom:30px}.basic-info-section h2,.questions-section h2{color:#333;font-size:1.8rem;font-weight:600;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid #e9ecef}.form-group{margin-bottom:20px}.form-group label{display:flex;align-items:center;gap:8px;font-weight:600;color:#333;margin-bottom:8px}.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 15px;border:2px solid #e9ecef;border-radius:8px;font-size:1rem;transition:border-color .3s ease}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}.exam-stats{display:flex;gap:20px;padding:15px;background:#f8f9fa;border-radius:10px;margin-top:20px}.stat-item{display:flex;align-items:center;gap:8px;font-weight:600;color:#555}.stat-item svg{color:#667eea}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.add-question-btn{display:flex;align-items:center;gap:8px;background:#667eea;color:#fff;border:none;padding:12px 20px;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease}.add-question-btn:hover{background:#5a67d8;transform:translateY(-2px)}.no-questions{text-align:center;padding:60px 20px;color:#666}.no-questions svg{font-size:3rem;margin-bottom:20px;color:#667eea}.no-questions p{font-size:1.2rem;margin-bottom:20px}.add-first-question-btn{background:#667eea;color:#fff;border:none;padding:15px 30px;border-radius:25px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.add-first-question-btn:hover{background:#5a67d8;transform:translateY(-2px)}.questions-list{display:flex;flex-direction:column;gap:20px}.question-card{border:2px solid #e9ecef;border-radius:12px;padding:20px;background:#fafafa}.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding-bottom:10px;border-bottom:1px solid #e9ecef}.question-header h3{color:#333;font-size:1.2rem;font-weight:600}.remove-question-btn{background:#dc3545;color:#fff;border:none;padding:8px 12px;border-radius:6px;cursor:pointer;transition:all .3s ease}.remove-question-btn:hover{background:#c82333;transform:scale(1.1)}.question-content{background:#fff;padding:20px;border-radius:8px}.options-section{margin-top:15px}.options-section label{font-weight:600;color:#333;margin-bottom:10px;display:block}.option-row{display:flex;align-items:center;gap:10px;margin-bottom:10px}.option-row input[type=radio]{width:auto;margin:0}.option-row input[type=text]{flex:1;margin:0}.helper-text{font-size:.9rem;color:#666;font-style:italic;margin-top:10px}.form-actions{display:flex;justify-content:flex-end;gap:15px;padding-top:20px;border-top:2px solid #e9ecef}.cancel-btn,.save-btn{padding:12px 25px;border:none;border-radius:8px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px}.cancel-btn{background:#6c757d;color:#fff}.cancel-btn:hover:not(:disabled){background:#5a6268;transform:translateY(-2px)}.save-btn{background:#28a745;color:#fff}.save-btn:hover:not(:disabled){background:#218838;transform:translateY(-2px)}.save-btn:disabled,.cancel-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}@media (max-width: 768px){.final-exam-creation{padding:15px}.exam-header h1{font-size:2rem}.exam-form{padding:20px}.form-row{grid-template-columns:1fr}.section-header{flex-direction:column;gap:15px;align-items:stretch}.exam-stats{flex-direction:column;gap:10px}.question-card{padding:15px}.question-header{flex-direction:column;gap:10px;align-items:flex-start}.form-actions{flex-direction:column}.option-row{flex-direction:column;align-items:stretch;gap:5px}.option-row input[type=text]{margin-left:0}}@media (max-width: 480px){.exam-header h1{font-size:1.8rem}.basic-info-section h2,.questions-section h2{font-size:1.5rem}.question-header h3{font-size:1.1rem}}.submission-review{padding:20px;max-width:1200px;margin:0 auto}.review-header{margin-bottom:30px;display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.header-content{display:flex;align-items:center;gap:20px}.back-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#f8f9fa;border:1px solid #dee2e6;border-radius:8px;color:#6c757d;text-decoration:none;font-weight:500;transition:all .3s ease;cursor:pointer}.back-btn:hover{background:#e9ecef;border-color:#adb5bd;color:#495057}.header-info h1{margin:0;color:#2c3e50;font-size:2rem;font-weight:700}.header-info p{margin:5px 0 0;color:#6c757d;font-size:1.1rem}.action-buttons{display:flex;gap:10px}.edit-btn,.save-btn,.cancel-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;border:none;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s ease;font-size:.9rem}.edit-btn{background:#3b82f61a;color:#3b82f6}.edit-btn:hover{background:#3b82f633;transform:translateY(-1px)}.save-btn{background:#22c55e1a;color:#22c55e}.save-btn:hover:not(:disabled){background:#22c55e33;transform:translateY(-1px)}.save-btn:disabled{opacity:.6;cursor:not-allowed}.cancel-btn{background:#6b72801a;color:#6b7280}.cancel-btn:hover{background:#6b728033}.edit-actions{display:flex;gap:10px}.student-info{margin-bottom:30px}.info-card{background:#fff;border-radius:15px;padding:25px;box-shadow:0 4px 20px #0000001a;display:flex;justify-content:space-between;align-items:center;gap:30px}.student-details{display:flex;flex-direction:column;gap:10px}.detail-item{display:flex;align-items:center;gap:10px;color:#6c757d;font-weight:500}.detail-item svg{color:#8b5cf6}.score-summary{display:flex;align-items:center;gap:30px}.current-score{text-align:center}.current-score h3{margin:0 0 10px;color:#2c3e50;font-size:1.2rem}.score-display{font-size:2rem;font-weight:700;color:#8b5cf6;margin-bottom:5px}.percentage{font-size:1.2rem;font-weight:600;color:#6c757d}.status{display:flex;flex-direction:column;align-items:center;gap:8px;padding:15px 20px;border-radius:12px;font-weight:600;text-transform:uppercase;font-size:.9rem}.status svg{font-size:1.5rem}.status.passed{background:#22c55e1a;color:#22c55e}.status.failed{background:#ef44441a;color:#ef4444}.answers-section{margin-bottom:30px}.answers-section h2{color:#2c3e50;margin-bottom:20px;font-size:1.8rem;font-weight:700}.answer-card{background:#fff;border-radius:15px;padding:25px;margin-bottom:20px;box-shadow:0 4px 20px #0000001a}.question-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding-bottom:15px;border-bottom:1px solid #e9ecef}.question-header h3{margin:0;color:#2c3e50;font-size:1.3rem}.marks-info{color:#6c757d;font-weight:500;background:#f8f9fa;padding:5px 12px;border-radius:20px;font-size:.9rem}.question-text{margin-bottom:20px}.question-text p{font-size:1.1rem;line-height:1.6;color:#2c3e50;margin:0}.answer-content{margin-bottom:20px;padding:15px;background:#f8f9fa;border-radius:10px}.answer-content h4{margin:0 0 10px;color:#2c3e50;font-size:1rem}.mcq-answer p{margin:5px 0;color:#6c757d}.written-answer p{margin:0;color:#6c757d;font-style:italic;line-height:1.6}.grading-section{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start}.marks-input{display:flex;align-items:center;gap:10px}.marks-input label{font-weight:600;color:#2c3e50;white-space:nowrap}.marks-input input{width:80px;padding:8px 12px;border:1px solid #dee2e6;border-radius:6px;font-size:1rem;text-align:center}.marks-input input.editable{border-color:#8b5cf6;background:#fff}.marks-input input.readonly{background:#f8f9fa;color:#6c757d}.marks-input input:focus.editable{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 3px #8b5cf61a}.feedback-input{display:flex;flex-direction:column;gap:8px}.feedback-input label{font-weight:600;color:#2c3e50}.feedback-input textarea{padding:12px;border:1px solid #dee2e6;border-radius:8px;font-size:1rem;resize:vertical;min-height:80px}.feedback-input textarea.editable{border-color:#8b5cf6;background:#fff}.feedback-input textarea.readonly{background:#f8f9fa;color:#6c757d}.feedback-input textarea:focus.editable{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 3px #8b5cf61a}.overall-feedback{background:#fff;border-radius:15px;padding:25px;box-shadow:0 4px 20px #0000001a}.overall-feedback h3{margin:0 0 15px;color:#2c3e50;font-size:1.5rem;font-weight:700}.feedback-textarea{width:100%;padding:15px;border:1px solid #8b5cf6;border-radius:10px;font-size:1rem;resize:vertical;min-height:120px}.feedback-textarea:focus{outline:none;box-shadow:0 0 0 3px #8b5cf61a}.loading-state,.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px;color:#6c757d}.loading-state .spinner{width:40px;height:40px;border:4px solid #f3f3f3;border-top:4px solid #8b5cf6;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:20px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.submission-review{padding:15px}.review-header{flex-direction:column;gap:15px}.header-content{flex-direction:column;align-items:flex-start;gap:15px}.info-card{flex-direction:column;gap:20px;text-align:center}.score-summary{flex-direction:column;gap:20px}.grading-section{grid-template-columns:1fr;gap:15px}.marks-input{justify-content:center}.edit-actions{justify-content:center;width:100%}.action-buttons{align-self:stretch}}