@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap";:root{--primary-h:230;--primary-s:85%;--primary-l:60%;--primary:hsl(var(--primary-h), var(--primary-s), var(--primary-l));--primary-light:hsl(var(--primary-h), var(--primary-s), 75%);--primary-dark:hsl(var(--primary-h), var(--primary-s), 45%);--primary-glow:hsla(var(--primary-h), var(--primary-s), var(--primary-l), .15);--secondary-h:280;--secondary-s:70%;--secondary-l:60%;--secondary:hsl(var(--secondary-h), var(--secondary-s), var(--secondary-l));--accent-h:180;--accent-s:100%;--accent-l:45%;--accent:hsl(var(--accent-h), var(--accent-s), var(--accent-l));--bg-main:#0a0c10;--bg-card:#ffffff08;--bg-surface:#12161f;--text-main:#f8fafc;--text-muted:#94a3b8;--text-dim:#64748b;--border-glass:#ffffff14;--shadow-premium:0 20px 40px #0006;--glass-blur:12px;--spacing-xs:.5rem;--spacing-sm:1rem;--spacing-md:2rem;--spacing-lg:4rem;--spacing-xl:8rem;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-full:9999px;--transition-fast:.2s cubic-bezier(.4, 0, .2, 1);--transition-smooth:.4s cubic-bezier(.4, 0, .2, 1);--transition-bounce:.5s cubic-bezier(.68, -.55, .265, 1.55);--skeleton-bg:#ffffff0d;--glass-bg:#ffffff08;--bg-subtle:#ffffff0d;--border-subtle:#ffffff14;--text-bright:#fff}[data-theme=light]{--bg-main:#f1f5f9;--bg-card:#fff;--bg-surface:#fff;--text-main:#0f172a;--text-muted:#475569;--text-dim:#64748b;--text-bright:#000;--border-glass:#00000014;--shadow-premium:0 10px 30px #0f172a14;--glass-blur:12px;--skeleton-bg:#0000000a;--glass-bg:#fffc;--bg-subtle:#0f172a0a;--border-subtle:#0f172a14}body{background-color:var(--bg-main);color:var(--text-main);transition:background-color .3s,color .3s}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-main);color:var(--text-main);-webkit-font-smoothing:antialiased;font-family:Plus Jakarta Sans,sans-serif;line-height:1.6;overflow-x:hidden}h1,h2,h3,h4,h5,h6{letter-spacing:-.02em;font-family:Outfit,sans-serif;font-weight:700}a{color:inherit;transition:var(--transition-fast);text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}input,textarea,select{outline:none;font-family:inherit}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--border-glass)}.gradient-text{background:linear-gradient(135deg, var(--primary), var(--secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text}.btn-premium{border-radius:var(--radius-md);background:var(--primary);color:#fff;transition:var(--transition-bounce);justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-weight:600;display:inline-flex;position:relative;overflow:hidden}.btn-premium:after{content:"";background:linear-gradient(120deg,#0000,#fff3,#0000);width:100%;height:100%;transition:all .6s;position:absolute;top:0;left:-100%}.btn-premium:hover:after{left:100%}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--bg-main)}::-webkit-scrollbar-thumb{background:var(--border-glass);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--text-dim)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.navbar{z-index:1000;background:0 0;align-items:center;width:100%;height:72px;padding:0;transition:all .4s cubic-bezier(.4,0,.2,1);display:flex;position:fixed;top:0;left:0}[data-theme=light] .navbar{background:#ffffff4d}.navbar.scrolled{background:var(--glass-bg);height:64px;-webkit-backdrop-filter:blur(var(--glass-blur));border-bottom:1px solid var(--border-glass);box-shadow:0 10px 30px #0003}.navbar-container{width:100%;max-width:1400px;padding:0 var(--spacing-md);justify-content:space-between;align-items:center;margin:0 auto;display:flex;position:relative}.navbar-logo{color:var(--text-main);align-items:center;gap:10px;font-family:Outfit,sans-serif;font-size:24px;font-weight:800;transition:all .3s;display:flex}.navbar-logo:hover{opacity:.9;transform:scale(1.02)}.logo-icon{color:var(--primary)}.navbar-main{align-items:center;gap:16px;margin-left:auto;margin-right:20px;display:flex}.navbar-actions{align-items:center;gap:12px;display:flex}.navbar-link{color:var(--text-main);letter-spacing:-.01em;opacity:.7;padding:8px 4px;font-size:15px;font-weight:600;transition:all .3s;position:relative}.navbar-link:hover,.navbar-link.active{opacity:1;color:var(--primary)}.navbar-link.active:after{content:"";background:var(--primary);width:100%;height:2px;box-shadow:0 2px 8px var(--primary-glow);border-radius:10px;position:absolute;bottom:-4px;left:0}.theme-toggle-btn{width:40px;height:40px;color:var(--text-muted);background:var(--bg-subtle);border:1px solid var(--border-subtle);border-radius:50%;justify-content:center;align-items:center;transition:all .3s;display:flex}.theme-toggle-btn:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-glow);transform:rotate(15deg)}.navbar-divider{background:var(--border-glass);width:1px;height:24px;margin:0 8px}.user-profile-wrapper{position:relative}.user-profile{background:var(--bg-subtle);border:1px solid var(--border-subtle);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:50px;align-items:center;gap:10px;padding:4px 14px 4px 5px;transition:all .3s;display:flex}.user-profile:hover,.user-profile.active{border-color:var(--primary);background:var(--primary-glow)}.user-avatar{background:linear-gradient(135deg, var(--primary), var(--secondary));color:#fff;border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;font-weight:700;display:flex}.user-role{color:var(--primary);text-transform:uppercase;letter-spacing:.5px;opacity:.8;font-size:9px;font-weight:800}.profile-dropdown{background:var(--bg-surface);border:1px solid var(--border-glass);border-radius:var(--radius-md);width:220px;box-shadow:var(--shadow-premium);-webkit-backdrop-filter:blur(var(--glass-blur));z-index:1001;flex-direction:column;gap:4px;padding:8px;animation:.3s ease-out slideInDown;display:flex;position:absolute;top:calc(100% + 12px);right:0}@keyframes slideInDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.dropdown-item{border-radius:var(--radius-sm);color:var(--text-muted);align-items:center;gap:12px;padding:10px 14px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.dropdown-item:hover{background:var(--bg-subtle);color:var(--primary);padding-left:18px}.dropdown-divider{background:var(--border-glass);height:1px;margin:4px 8px}.logout-item{color:#ff4757;text-align:left;width:100%}.logout-item:hover{color:#ff4757;background:#ff47571a}.auth-actions{align-items:center;gap:16px;display:flex}.login-link{color:var(--text-muted);font-size:14px;font-weight:700}.login-link:hover{color:var(--text-main)}.signup-btn{letter-spacing:.02em;border-radius:50px;padding:10px 24px;font-weight:700}.mobile-toggle{cursor:pointer;color:var(--text-main);border-radius:12px;padding:8px;transition:all .3s;display:none}.mobile-toggle:hover{background:var(--bg-subtle)}@media (width<=1024px){.navbar-main{gap:16px}}@media (width<=850px){.navbar-main{display:none}.mobile-toggle{margin-left:8px;display:flex}}@media (width<=480px){.user-profile{padding:4px 8px}.user-name,.user-role,.navbar-divider{display:none}}.mobile-menu{background:var(--bg-surface);width:100%;max-width:320px;height:100vh;transition:var(--transition-smooth);z-index:1001;flex-direction:column;padding:0;display:flex;position:fixed;top:0;right:-100%;box-shadow:-10px 0 30px #0000004d}.mobile-menu.open{right:0}.mobile-menu-header{border-bottom:1px solid var(--border-glass);justify-content:space-between;align-items:center;padding:24px;display:flex}.mobile-nav-links{flex-direction:column;flex:1;gap:8px;padding:24px;display:flex;overflow-y:auto}.mobile-nav-links a,.mobile-nav-links button{color:var(--text-main);text-align:left;border-radius:var(--radius-md);transition:var(--transition-fast);align-items:center;gap:12px;padding:14px 16px;font-size:16px;font-weight:600;display:flex}.mobile-nav-links a:hover{background:var(--bg-subtle);color:var(--primary);padding-left:20px}.mobile-logout-btn{margin-top:20px;color:#ff4757!important;background:#ff47570d!important}.mobile-menu-footer{border-top:1px solid var(--border-glass);padding:24px}.mobile-theme-toggle{background:var(--bg-subtle);border-radius:var(--radius-md);width:100%;color:var(--text-main);justify-content:center;align-items:center;gap:10px;display:flex;padding:14px!important}.dashboard-footer{color:var(--text-main);border-top:1px solid var(--border-glass);border-radius:var(--radius-md) var(--radius-md) 0 0;margin-top:60px;padding:60px 40px 20px}.footer-content{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:60px;display:grid}.footer-brand{max-width:320px}.footer-logo{letter-spacing:-.5px;margin-bottom:20px;font-size:24px;font-weight:800}.footer-tagline{color:var(--text-muted);font-size:14px;line-height:var(--line-height-relaxed)}.link-group h4,.footer-social h4{text-transform:uppercase;color:var(--text-dim);letter-spacing:1px;margin-bottom:24px;font-size:13px;font-weight:700}.link-group{flex-direction:column;gap:12px;display:flex}.link-group a{color:var(--text-muted);font-size:14px;text-decoration:none;transition:color .3s}.link-group a:hover{color:var(--primary)}.social-icons{gap:12px;margin-bottom:16px;display:flex}.social-icon{width:36px;height:36px;color:var(--text-muted);border:1px solid var(--border-glass);background:#ffffff08;border-radius:8px;justify-content:center;align-items:center;transition:all .3s;display:flex}.social-icon:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}.contact-email{color:var(--text-dim);font-size:13px;font-style:italic}.footer-bottom{border-top:1px solid #ffffff0d;justify-content:space-between;align-items:center;padding-top:30px;display:flex}.footer-bottom p{color:var(--text-dim);font-size:13px}.footer-legal{align-items:center;gap:16px;display:flex}.footer-legal a{color:var(--text-dim);font-size:13px;text-decoration:none;transition:color .3s}.footer-legal a:hover{color:var(--primary)}.dot{background:var(--text-dim);opacity:.3;border-radius:50%;width:4px;height:4px}@media (width<=1024px){.footer-content{grid-template-columns:1fr 1fr;gap:40px}}@media (width<=768px){.footer-content{text-align:center;grid-template-columns:1fr;gap:40px}.footer-brand{max-width:100%}.social-icons{justify-content:center}.footer-bottom{flex-direction:column;gap:20px;padding-bottom:20px}}.btn-premium{border-radius:var(--radius-md);background:var(--primary);color:#fff;transition:var(--transition-bounce);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-weight:600;display:inline-flex;position:relative;overflow:hidden}.btn-premium:hover{box-shadow:0 10px 20px var(--primary-glow);transform:translateY(-4px)}.btn-secondary{border-radius:var(--radius-md);border:1px solid var(--border-glass);color:var(--text-main);background:var(--bg-card);transition:var(--transition-fast);cursor:pointer;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-weight:600;display:inline-flex}.btn-premium:disabled,.btn-secondary:disabled{opacity:.6;cursor:not-allowed;box-shadow:none!important;transform:none!important}.hero-section{min-height:calc(100vh - 80px);padding:var(--spacing-lg) var(--spacing-md);justify-content:space-between;align-items:center;gap:var(--spacing-lg);max-width:1300px;margin:0 auto;display:flex;position:relative;overflow:hidden}.hero-content{flex-direction:column;flex:1;gap:24px;display:flex}.badge{border-radius:var(--radius-full);background:var(--bg-card);border:1px solid var(--border-glass);color:var(--primary-light);align-items:center;gap:8px;width:fit-content;padding:8px 16px;font-size:14px;font-weight:600;display:inline-flex}.star-icon{color:#ffb800}.hero-title{font-size:clamp(2.5rem,8vw,4rem);font-weight:800;line-height:1.1}.hero-subtitle{color:var(--text-muted);max-width:550px;font-size:1.15rem;line-height:1.6}.hero-actions{align-items:center;gap:24px;display:flex}.hero-btn{align-items:center;gap:10px;padding:16px 32px;font-size:16px;display:flex}.watch-demo{color:var(--text-main);transition:var(--transition-fast);align-items:center;gap:12px;font-weight:600;display:flex}.watch-demo:hover{color:var(--primary)}.play-icon{background:var(--bg-card);border:1px solid var(--border-glass);width:44px;height:44px;color:var(--primary);border-radius:50%;justify-content:center;align-items:center;display:flex}.hero-stats{gap:40px;margin-top:20px;display:flex}.stat-item{color:var(--text-dim);align-items:center;gap:12px;font-weight:500;display:flex}.stat-item svg{color:var(--primary)}.hero-visual{perspective:1000px;flex:1;justify-content:center;align-items:center;display:flex;position:relative}.image-container{z-index:2;width:100%;max-width:500px;position:relative}.hero-main-image{border:1px solid #ffffff1a;border-radius:30px;width:100%;height:auto;transform:rotateY(-10deg)rotateX(5deg);box-shadow:0 30px 60px #0006,0 0 40px #6366f133}.floating-elements{pointer-events:none;width:100%;height:100%;position:absolute;top:0;left:0}.glass-card{-webkit-backdrop-filter:blur(12px);z-index:3;color:#fff;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:16px;align-items:center;gap:12px;padding:12px 20px;font-size:14px;font-weight:600;display:flex;position:absolute;box-shadow:0 10px 30px #0003}.floating-stats{animation:4s ease-in-out infinite float;top:20%;right:-40px}.floating-badge{animation:5s ease-in-out infinite reverse float;bottom:20%;left:-40px}.glass-card svg{color:var(--primary)}.animate-float{animation:6s ease-in-out infinite 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img{transform:scale(1.1)}.card-badge{border-radius:var(--radius-full);background:var(--primary);color:#fff;text-transform:uppercase;z-index:1;padding:4px 12px;font-size:12px;font-weight:700;position:absolute;top:15px;right:15px}.card-content{flex-direction:column;flex:1;gap:12px;padding:24px;display:flex}.card-meta{color:var(--text-dim);align-items:center;gap:16px;font-size:13px;display:flex}.card-meta .rating{color:#ffb800;align-items:center;gap:4px;display:flex}.card-title{color:var(--text-main);font-size:1.25rem;line-height:1.3}.card-description{color:var(--text-muted);font-size:.95rem;line-height:1.5}.card-footer{border-top:1px solid var(--border-glass);justify-content:space-between;align-items:center;margin-top:auto;padding-top:15px;display:flex}.price-tag{align-items:baseline;gap:2px;display:flex}.currency{color:var(--primary-light);font-size:14px;font-weight:700}.amount{color:var(--text-main);font-size:1.5rem;font-weight:800}.card-actions{align-items:center;gap:12px;display:flex}.edit-btn{background:var(--bg-subtle);border:1px solid var(--border-glass);color:var(--text-main);border-radius:var(--radius-sm);cursor:pointer;padding:6px 14px;font-size:13px;font-weight:600;transition:all .3s}.edit-btn:hover{background:var(--bg-surface);border-color:var(--primary)}.instructor-view{color:var(--primary-light)!important}.instructor-view:hover{gap:8px!important}.enroll-card-btn{background:var(--primary);color:#fff;cursor:pointer;z-index:2;white-space:nowrap;border:none;border-radius:8px;align-items:center;gap:8px;padding:8px 16px;font-size:.85rem;font-weight:700;transition:all .3s;display:flex;box-shadow:0 4px 12px #6366f166}.enroll-card-btn:hover{background:var(--primary-light);transform:scale(1.1)}.enroll-card-btn.already-enrolled{color:#10b981;box-shadow:none;background:#10b9811a}.view-btn{color:var(--primary);cursor:pointer;transition:var(--transition-fast);background:0 0;border:none;align-items:center;gap:6px;padding:0;font-size:14px;font-weight:700;display:flex}.view-btn:hover{color:var(--primary-light);gap:10px}.instructor-actions-group{align-items:center;gap:8px;display:flex}.delete-btn-course{color:#ef4444;border-radius:var(--radius-sm);cursor:pointer;background:#ef44441a;border:1px solid #ef444433;justify-content:center;align-items:center;width:34px;height:34px;transition:all .3s;display:flex}.delete-btn-course:hover{color:#fff;background:#ef4444;border-color:#ef4444;transform:scale(1.05)}.enrolled-btn{color:#10b981}.enrolled-btn:hover{color:#34d399;gap:6px}.loader-wrapper{background:0 0;justify-content:center;align-items:center;padding:40px;display:flex}.loader-wrapper.full-page{z-index:99999;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0a0a12cc;width:100vw;height:100vh;position:fixed;top:0;left:0}.loader-content{text-align:center;flex-direction:column;align-items:center;gap:32px;display:flex}.spinner-container{justify-content:center;align-items:center;width:80px;height:80px;display:flex;position:relative}.main-spinner{color:#6366f1;z-index:2;filter:drop-shadow(0 0 8px #6366f180);position:relative}.spinner-glow{filter:blur(30px);opacity:.3;background:#6366f1;border-radius:50%;width:60px;height:60px;animation:2s ease-in-out infinite glow-pulse;position:absolute}.spinner-outer{border:2px solid #6366f11a;border-top-color:#6366f199;border-radius:50%;width:100px;height:100px;animation:1.5s linear infinite spin;position:absolute}.spinner-inner{border:2px solid #a855f71a;border-bottom-color:#a855f799;border-radius:50%;width:60px;height:60px;animation:1.2s linear infinite spin-reverse;position:absolute}.loader-message{color:#fff;letter-spacing:2px;text-transform:uppercase;background:linear-gradient(90deg,#fff,#a855f7,#6366f1,#fff) 0 0/200%;-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.2rem;font-weight:600;animation:3s linear infinite gradient-text}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes spin-reverse{0%{transform:rotate(360deg)}to{transform:rotate(0)}}@keyframes glow-pulse{0%,to{opacity:.3;transform:scale(1)}50%{opacity:.5;transform:scale(1.8)}}@keyframes 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12px;font-size:12px;font-weight:700;display:inline-block}.loading-spinner{text-align:center;color:var(--primary);letter-spacing:1px;padding:40px;font-weight:600}.mini-stats{color:var(--text-muted);margin-top:4px;font-size:12px}.admin-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-top:24px;display:grid}.admin-card{border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-bounce);padding:30px}.admin-card:hover{border-color:var(--primary);background:var(--bg-subtle);transform:translateY(-5px)}.admin-card h3{color:var(--primary-light);margin-bottom:12px}.admin-card p{color:var(--text-muted);font-size:14px;line-height:1.6}.admin-actions{gap:12px;display:flex}.admin-table{border-collapse:collapse;width:100%;margin-top:20px}.admin-table th,.admin-table td{text-align:left;border-bottom:1px solid var(--border-glass);padding:16px}.admin-table th{color:var(--text-dim);text-transform:uppercase;letter-spacing:1px;font-size:12px;font-weight:600}.role-badge-small{text-transform:uppercase;border-radius:4px;padding:4px 8px;font-size:11px;font-weight:700}.role-badge-small.admin{color:#a855f7;background:#a855f733}.role-badge-small.instructor{color:#3b82f6;background:#3b82f633}.role-badge-small.student{color:#22c55e;background:#22c55e33}.delete-btn{color:#ff4757;border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:1px solid #ff47574d;padding:6px 12px;font-size:12px;font-weight:600;transition:all .2s}.delete-btn:hover:not(:disabled){color:#fff;background:#ff4757}.delete-btn:disabled{opacity:.5;cursor:not-allowed}.admin-input{background:var(--bg-subtle);border:1px solid var(--border-glass);border-radius:var(--radius-sm);color:#fff;width:100%;padding:12px}.admin-input:focus{border-color:var(--primary);background:#ffffff14;outline:none}.admin-input option{color:#111;background:#fff}.user-info-cell{flex-direction:column;display:flex}.user-name{color:var(--text-main);font-size:14px;font-weight:600}.user-email{color:var(--text-muted);font-size:12px}.progress-cell{align-items:center;gap:12px;min-width:200px;display:flex}.progress-bar-container{background:var(--bg-subtle);border-radius:4px;flex:1;height:8px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg, var(--primary), var(--secondary));border-radius:4px;height:100%;transition:width 1s cubic-bezier(.4,0,.2,1)}.progress-bar-fill.completed{background:linear-gradient(90deg,#10b981,#34d399)}.progress-percent{color:var(--primary-light);min-width:40px;font-size:13px;font-weight:700}.enrollments-section .admin-table td{padding:20px 16px}.enrollment-count-badge{color:var(--primary-light);background:#a855f71a;border:1px solid #a855f733;border-radius:6px;padding:4px 10px;font-size:12px;font-weight:600}.new-user-row td{border-top:1px solid #ffffff26!important}.duplicate-user-row td{border-top:none!important}.duplicate-user-row:hover td,.new-user-row:hover td{background:var(--bg-subtle)}.student-modal-overlay{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:2000;background:#000000eb;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.student-modal-content{background:#0a0b10;border:1px solid #ffffff1a;border-radius:16px;flex-direction:column;width:100%;max-width:1000px;max-height:85vh;display:flex;overflow:hidden;box-shadow:0 0 0 1px #ffffff0d,0 25px 50px -12px #000c}.modal-header h2{margin-bottom:4px;font-size:1.25rem;font-weight:700}.student-subtitle{color:var(--text-muted);font-size:.875rem}.courses-table td{vertical-align:middle;border-bottom:1px solid #ffffff0d;padding:20px}.course-info{flex-direction:column;display:flex}.meta-text{color:var(--text-muted);font-size:.8125rem}.status-badge{white-space:nowrap;border-radius:6px;align-items:center;padding:6px 12px;font-size:.75rem;font-weight:600;display:inline-flex}.status-badge.completed{color:#10b981;background:#10b9811a}.status-badge.active{color:#818cf8;background:#6366f133;border:1px solid #818cf833}.progress-container{align-items:center;gap:12px;width:140px;display:flex}.progress-bar-bg{background:#ffffff0d;border-radius:3px;flex:1;height:6px;overflow:hidden}.progress-bar-fill{background:linear-gradient(90deg,#6366f1,#a855f7);border-radius:3px;height:100%;transition:width 1s cubic-bezier(.4,0,.2,1);box-shadow:0 0 10px #a855f766}.progress-percent{color:#fff;text-shadow:0 0 10px #fff3;min-width:38px;font-size:.8125rem;font-weight:800}.status-badge.inactive{color:var(--text-dim);background:#ffffff0d;border:1px solid #ffffff1a}.quiz-info-cell{flex-direction:column;gap:4px;display:flex}.attempts-count{color:var(--text-main);font-size:.875rem;font-weight:600}.attempts-count.limit-reached{color:#ef4444}.quiz-status-mini{text-transform:uppercase;letter-spacing:.05em;border-radius:4px;width:fit-content;padding:2px 6px;font-size:10px;font-weight:700}.quiz-status-mini.passed{color:#10b981;background:#10b9811a}.quiz-status-mini.failed{color:#ef4444;background:#ef44441a}.quiz-status-mini.not_started{color:var(--text-dim);background:#ffffff0d}.grant-attempt-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#6366f1,#a855f7);border:none;border-radius:6px;padding:6px 12px;font-size:.75rem;font-weight:600;transition:all .2s;box-shadow:0 4px 12px #a855f733}.grant-attempt-btn:hover{filter:brightness(1.1);transform:translateY(-1px);box-shadow:0 6px 15px #a855f74d}.grant-attempt-btn:active{transform:translateY(0)}.no-action{color:var(--text-dim);font-size:12px}.no-courses h3{color:var(--text-muted)}.instructor-modal-overlay{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:2000;background:#000000eb;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.instructor-modal-content{background:#0a0b10;border:1px solid #ffffff1a;border-radius:16px;flex-direction:column;width:100%;max-width:850px;max-height:85vh;display:flex;overflow:hidden;box-shadow:0 0 0 1px #ffffff0d,0 25px 50px -12px #000c}.modal-header{background:#11141d;border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;padding:28px;display:flex}.header-info{align-items:center;gap:16px;display:flex}.header-icon{color:#6366f1;background:#6366f11a;border-radius:12px;padding:10px}.modal-header h2{color:#fff;margin:0;font-size:1.25rem;font-weight:700}.instructor-subtitle{color:#94a3b8;margin:4px 0 0;font-size:.875rem}.close-btn{color:#94a3b8;cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:8px;transition:all .2s;display:flex}.close-btn:hover{color:#fff;background:#ffffff0d}.modal-body{flex:1;padding:24px;overflow-y:auto}.courses-table-wrapper{width:100%}.courses-table{border-collapse:collapse;width:100%}.courses-table th{text-align:left;color:#94a3b8;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid #ffffff14;padding:12px 16px;font-size:.75rem}.courses-table td{border-bottom:1px solid #ffffff0d;padding:16px}.course-title-cell{flex-direction:column;gap:4px;display:flex}.course-name{color:#fff;font-size:.9375rem;font-weight:600}.level-badge{color:#94a3b8;background:#ffffff0d;border-radius:4px;width:fit-content;padding:2px 6px;font-size:.7rem;display:inline-block}.category-tag{color:#818cf8;background:#6366f11a;border:1px solid #818cf833;border-radius:6px;padding:4px 10px;font-size:.8125rem}.price-cell{color:#10b981;font-size:.9rem;font-weight:700}.student-count-badge{color:#94a3b8;background:#ffffff05;border:1px solid #ffffff0d;border-radius:20px;align-items:center;gap:6px;padding:6px 12px;font-size:.8125rem;display:flex}.inline-icon{opacity:.7}.no-courses{color:#94a3b8;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:60px 0;display:flex}.no-courses h3{color:#cbd5e1;margin:0}.settings-page{padding:var(--spacing-lg) var(--spacing-md);max-width:1000px;margin:0 auto}.settings-grid{grid-template-columns:250px 1fr;gap:40px;margin-top:40px;display:grid}.settings-nav{flex-direction:column;gap:12px;display:flex}.nav-item{color:var(--text-dim);cursor:pointer;text-align:left;background:0 0;border:1px solid #0000;border-radius:12px;align-items:center;gap:12px;padding:14px 20px;font-weight:600;transition:all .3s;display:flex}.nav-item:hover{color:#fff;background:#ffffff0d}.nav-item.active{color:var(--primary-light);background:#6366f11a;border-color:#6366f14d}.settings-content{min-height:500px}.settings-card{border-radius:20px;padding:30px}.card-title{align-items:center;gap:15px;margin-bottom:30px;font-size:1.5rem;display:flex}.profile-image-section{border-bottom:1px solid #ffffff0d;align-items:center;gap:30px;margin-bottom:40px;padding-bottom:30px;display:flex}.profile-preview{object-fit:cover;border:3px solid var(--primary);border-radius:50%;width:100px;height:100px}.avatar-placeholder{background:var(--bg-card);width:100px;height:100px;color:var(--primary);border:2px dashed #fff3;border-radius:50%;justify-content:center;align-items:center;font-size:2rem;display:flex}.upload-btn-wrapper{display:inline-block;position:relative;overflow:hidden}.upload-btn-wrapper input[type=file]{opacity:0;cursor:pointer;font-size:100px;position:absolute;top:0;left:0}.settings-form{grid-template-columns:1fr 1fr;gap:20px;display:grid}.form-group-full{grid-column:1/-1}.settings-form label{color:var(--text-muted);margin-bottom:8px;font-size:14px;display:block}.settings-form input{color:#fff;background:#ffffff0d;border:1px solid #ffffff1a;border-radius:8px;width:100%;padding:12px 16px;transition:all .3s}.settings-form input:focus{border-color:var(--primary);background:#ffffff14;outline:none}.security-list{flex-direction:column;gap:24px;display:flex}.security-item{background:#ffffff05;border:1px solid #ffffff0d;border-radius:12px;justify-content:space-between;align-items:center;padding:20px;display:flex}.security-item-info h4{margin-bottom:4px}.security-item-info p{color:var(--text-dim);font-size:13px}.toggle-switch{width:50px;height:24px;display:inline-block;position:relative}.toggle-switch input{opacity:0;width:0;height:0}.slider{cursor:pointer;background-color:#334155;border-radius:34px;transition:all .4s;position:absolute;inset:0}.slider:before{content:"";background-color:#fff;border-radius:50%;width:18px;height:18px;transition:all .4s;position:absolute;bottom:3px;left:3px}input:checked+.slider{background-color:var(--primary)}input:checked+.slider:before{transform:translate(26px)}.activity-table{border-collapse:collapse;width:100%;margin-top:20px}.activity-table th{text-align:left;color:var(--text-dim);border-bottom:1px solid #ffffff1a;padding:12px;font-size:13px}.activity-table td{border-bottom:1px solid #ffffff0d;padding:15px 12px;font-size:14px}@media (width<=768px){.settings-grid{grid-template-columns:1fr}.settings-nav{flex-direction:row;padding-bottom:10px;overflow-x:auto}.nav-item{white-space:nowrap}.settings-form{grid-template-columns:1fr}}.course-player-container{background:var(--bg-main);height:calc(100vh - 80px);display:flex;overflow:hidden}.player-sidebar{background:var(--bg-card);border-right:1px solid var(--border-glass);flex-direction:column;width:320px;display:flex;overflow-y:auto}.sidebar-header{border-bottom:1px solid var(--border-glass);flex-direction:column;gap:16px;padding:24px;display:flex}.back-btn{color:var(--primary);cursor:pointer;background:0 0;border:none;align-items:center;gap:8px;width:fit-content;padding:0;font-size:13px;font-weight:700;transition:opacity .2s;display:flex}.back-btn:hover{opacity:.8}.course-header-branding{flex-direction:column;gap:12px;display:flex}.sidebar-course-title{color:var(--text-bright);margin:0;font-size:1.1rem;font-weight:700;line-height:1.4}.intro-video-pill{color:#fbbf24;text-transform:uppercase;letter-spacing:.5px;background:#fbbf241a;border:1px solid #fbbf2433;border-radius:20px;align-items:center;gap:6px;width:fit-content;padding:6px 12px;font-size:11px;font-weight:700;text-decoration:none;transition:all .2s;display:flex}.intro-video-pill:hover{background:#fbbf2433;transform:translateY(-1px)}.sidebar-progress-section{flex-direction:column;gap:8px;display:flex}.progress-stats{color:var(--text-dim);justify-content:space-between;align-items:center;font-size:11px;font-weight:600;display:flex}.percent-badge{color:var(--primary)}.mini-progress-bar{background:var(--bg-subtle);border-radius:10px;height:6px;overflow:hidden}.mini-progress-bar .bar-fill{background:var(--primary);height:100%;transition:width .6s cubic-bezier(.4,0,.2,1);box-shadow:0 0 10px #a855f766}.sidebar-rate-btn{color:#fbbf24;cursor:pointer;background:#fbbf241a;border:1px solid #fbbf2433;border-radius:8px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:12px;padding:8px 12px;font-size:12px;font-weight:700;transition:all .2s;display:flex}.sidebar-rate-btn:hover{background:#fbbf2433;transform:translateY(-2px);box-shadow:0 4px 12px #fbbf2433}.lesson-list{padding:0;list-style:none}.lesson-item{cursor:pointer;border-bottom:1px solid var(--border-subtle);align-items:center;gap:12px;padding:16px 24px;transition:all .2s;display:flex}.lesson-item:hover{background:var(--bg-subtle)}.lesson-item.active{border-left:4px solid var(--primary);background:#a855f71a}.lesson-item.completed{color:var(--text-dim)}.lesson-status{justify-content:center;align-items:center;width:20px;height:20px;display:flex}.lesson-title{flex:1;font-size:14px;font-weight:500}.player-main{flex-direction:column;flex:1;gap:24px;padding:40px;display:flex;overflow-y:auto}.video-container{aspect-ratio:16/9;border-radius:var(--radius-md);background:#000;width:100%;overflow:hidden}.video-placeholder{width:100%;height:100%;color:var(--text-muted);background:linear-gradient(135deg,#1e1e2e,#11111b);flex-direction:column;justify-content:center;align-items:center;display:flex}.content-area{background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-glass);padding:30px}.content-area h2{margin-bottom:16px}.content-text{color:var(--text-main);font-size:1.1rem;line-height:1.8}.player-actions{justify-content:flex-end;margin-top:20px;display:flex}@media (width<=992px){.course-player-container{flex-direction:column;height:auto}.player-sidebar{width:100%;height:300px}}.lesson-info-box{flex-direction:column;gap:4px;display:flex}.quiz-badge-sidebar{color:#818cf8;text-transform:uppercase;background:#6366f133;border-radius:4px;width:fit-content;padding:2px 6px;font-size:10px;font-weight:700}.material-link-box{background:var(--bg-subtle);border:1px dashed var(--border-subtle);border-radius:8px;align-items:center;gap:12px;margin-bottom:20px;padding:15px;display:flex}.external-link-btn{background:var(--primary);color:#fff;border-radius:6px;margin-left:auto;padding:6px 12px;font-size:12px;font-weight:600;text-decoration:none}.quiz-header-player{align-items:center;gap:10px;margin-bottom:20px;display:flex}.quiz-q-player{border-bottom:1px solid var(--border-subtle);margin-bottom:25px;padding-bottom:20px}.q-text{color:#fff;margin-bottom:15px;font-size:1rem}.q-opts-player{grid-template-columns:1fr 1fr;gap:10px;display:grid}.q-opt-btn{background:var(--bg-subtle);border:1px solid var(--border-subtle);color:var(--text-dim);text-align:left;cursor:pointer;border-radius:8px;gap:10px;padding:12px 15px;font-size:.9rem;transition:all .2s;display:flex}.q-opt-btn span{opacity:.5;font-weight:800}.q-opt-btn:hover{background:#ffffff0d}.q-opt-btn.selected{border-color:var(--primary);color:var(--text-bright);background:#6366f11a}.quiz-result-card{text-align:center;flex-direction:column;align-items:center;gap:15px;padding:20px;display:flex}.score-display{color:var(--text-bright);background:linear-gradient(#6366f1,#a855f7);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:3rem;font-weight:900}.final-quiz-container{background:var(--bg-card);border:1px solid var(--border-glass);border-radius:16px;padding:40px}.quiz-header-main{border-bottom:1px solid var(--border-glass);align-items:center;gap:20px;margin-bottom:40px;padding-bottom:20px;display:flex}.attempts-badge{color:#ef4444;background:#ef44441a;border:1px solid #ef444433;border-radius:20px;margin-left:auto;padding:6px 12px;font-size:13px;font-weight:700}.quiz-completion-view{text-align:center;flex-direction:column;align-items:center;padding:40px 0;display:flex}.score-ring{border:4px solid var(--primary);width:120px;height:120px;color:var(--text-bright);background:#6366f11a;border-radius:50%;justify-content:center;align-items:center;margin:20px 0;font-size:32px;font-weight:900;display:flex;box-shadow:0 0 30px #6366f14d}.lesson-item.locked{opacity:.5;cursor:not-allowed;filter:grayscale()}.locked-badge{color:var(--text-muted);background:#0003}.final-quiz-item.passed{border-left:4px solid #fbbf24}.quiz-footer-actions{justify-content:center;margin-top:40px;display:flex}.out-of-attempts-msg{text-align:center;color:#ef4444;background:#ef44441a;border-radius:8px;margin-top:20px;padding:20px}@keyframes pop{0%{transform:scale(.8)}50%{transform:scale(1.2)}to{transform:scale(1)}}.animate-pop{animation:.3s ease-out pop}.app-container{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1;padding-top:80px}.page-content{width:100%;max-width:1200px;padding:var(--spacing-md);margin:0 auto}.hero{text-align:center;justify-content:center;align-items:center;gap:var(--spacing-md);flex-direction:column;height:calc(100vh - 80px);display:flex}.hero-title{max-width:800px;font-size:clamp(2.5rem,8vw,4.5rem);line-height:1.1}.hero-subtitle{color:var(--text-muted);max-width:600px;margin-bottom:var(--spacing-sm);font-size:1.25rem}.hero-btns{gap:16px;display:flex}.btn-secondary{border-radius:var(--radius-md);border:1px solid var(--border-glass);color:var(--text-main);background:var(--bg-card);transition:var(--transition-fast);padding:12px 24px;font-weight:600}.btn-secondary:hover{background:var(--border-glass);transform:translateY(-2px)}