@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn 0.6s ease-out forwards}.delay-100{animation-delay:0.1s}.delay-200{animation-delay:0.2s}.delay-300{animation-delay:0.3s}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg-body)}::-webkit-scrollbar-thumb{background:var(--secondary-color);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--primary-color)}.custom-scrollbar::-webkit-scrollbar{width:6px}.custom-scrollbar::-webkit-scrollbar-track{background:rgba(0,0,0,0.05);border-radius:10px}.custom-scrollbar::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:10px}.hover-primary:hover{color:var(--primary-color)!important;transition:color 0.2s ease}.transition-all{transition:all 0.3s ease}.z-1{z-index:1}.z-2{z-index:2}.z-3{z-index:3}.min-vh-75{min-height:75vh}.min-vh-50{min-height:50vh}.text-gradient{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.spinner{border:3px solid rgba(0,0,0,0.1);border-left-color:var(--primary-color);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#toggle-theme{width:50px;height:50px;display:flex;align-items:center;justify-content:center;border-radius:50%;border:none;cursor:pointer;background-color:var(--bg-surface);color:var(--primary-color);box-shadow:0 6px 18px rgba(0,0,0,0.1);transition:all 0.4s ease;font-size:1.3rem}#toggle-theme:hover{transform:scale(1.1);box-shadow:0 10px 25px rgba(0,0,0,0.15)}#toggle-theme i{transform:none!important;transition:color 0.4s ease}body,.glass-card,.navbar,footer{transition:background 0.5s ease,color 0.5s ease,box-shadow 0.5s ease}[data-theme="dark"] .text-muted{color:#cbd5e1!important}[data-theme="dark"] .feature-card h3,[data-theme="dark"] .feature-card h4,[data-theme="dark"] .feature-card p{color:#f1f5f9}[data-theme="dark"] .hero-section h1,[data-theme="dark"] .hero-section p{color:#f8f9fa}[data-theme="dark"] .badge{color:#f8f9fa!important}[data-theme="dark"] .btn-outline-primary{color:var(--primary-color)!important;border-color:var(--primary-color)!important}[data-theme="dark"] .btn-outline-primary:hover{color:#fff!important;background-color:var(--primary-color)!important}.main-navbar{background:rgba(255,255,255,0.75);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:20px;padding:10px 18px;transition:all 0.3s ease-in-out}.main-navbar .nav-link{color:#1e293b!important;font-weight:500}.main-navbar .nav-link:hover{color:var(--primary-color)!important}.main-navbar .navbar-brand span{color:var(--primary-color)}.main-navbar .navbar-toggler{filter:invert(0)}[data-theme="dark"] .main-navbar{background:rgba(15,23,42,0.75);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:#f1f5f9}[data-theme="dark"] .main-navbar .nav-link{color:#f8fafc!important}[data-theme="dark"] .main-navbar .nav-link:hover{color:var(--primary-color)!important}[data-theme="dark"] .main-navbar .navbar-brand span{color:var(--primary-color)}[data-theme="dark"] .main-navbar .navbar-toggler{filter:invert(1)}.video-container{position:relative;background:linear-gradient(135deg,rgba(67,97,238,0.05),rgba(76,201,240,0.05));border-radius:var(--radius-lg);padding:1rem}@media (max-width:768px){.video-container{padding:0.5rem;border-radius:12px}}.video-wrapper{display:none;width:100%}.video-wrapper.active{display:block}.video-frame{position:relative;width:100%;aspect-ratio:16 / 9;background:#000;border-radius:12px;overflow:hidden}.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:none}@media (max-width:768px){.video-container{margin-left:-12px;margin-right:-12px;border-radius:0}.video-frame{border-radius:0}}.video-pagination{margin-top:12px;text-align:center}.video-pagination button{min-width:40px;min-height:40px}@media (max-width:768px){.video-pagination button{min-width:44px;min-height:44px;font-size:16px}}.lesson-sidebar{position:sticky;top:100px}@media (max-width:768px){.lesson-sidebar{position:static}}@media (max-width:768px){.container{padding-left:8px;padding-right:8px}}.video-frame{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:12px}.video-frame iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:0}:root{--primary-color:#0062ff;--primary-hover:#004ecc;--secondary-color:#1e293b;--accent-color:#4cc9f0;--success-color:#06d6a0;--warning-color:#ffd166;--danger-color:#ef476f;--bg-body:#f0f4f8;--bg-surface:rgba(255,255,255,0.85);--bg-glass:rgba(255,255,255,0.4);--text-main:#1a1c2e;--text-secondary:#52627a;--text-light:#ffffff;--shadow-sm:0 4px 12px rgba(0,98,255,0.08);--shadow-md:0 12px 32px rgba(0,98,255,0.12);--shadow-lg:0 24px 64px rgba(0,20,50,0.15);--glass-border:1px solid rgba(255,255,255,0.5);--glass-blur:blur(16px);--radius-md:12px;--radius-lg:20px;--radius-xl:30px;--padding-inline:1.5rem}[data-theme="dark"]{--primary-color:#3b82f6;--bg-body:#0b1120;--bg-surface:rgba(21,32,54,0.8);--bg-glass:rgba(30,41,59,0.6);--text-main:#f1f5f9;--text-secondary:#94a3b8;--glass-border:1px solid rgba(255,255,255,0.08);--shadow-lg:0 24px 64px rgba(0,0,0,0.4)}[dir="ltr"] .fa-arrow-right{transform:rotate(0deg)}[dir="rtl"] .fa-arrow-right{transform:rotate(180deg)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background-color:var(--bg-body);color:var(--text-main);line-height:1.6;transition:background-color 0.3s ease,color 0.3s ease;overflow-x:hidden;text-align:start}a{text-decoration:none;color:inherit;transition:color 0.2s ease}ul{list-style:none}.glass-card{background:var(--bg-surface);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border:var(--glass-border);border-radius:var(--radius-md);box-shadow:var(--shadow-md);transition:transform 0.3s ease,box-shadow 0.3s ease}.glass-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.btn-modern{display:inline-flex;align-items:center;justify-content:center;padding:0.75rem 1.5rem;border-radius:var(--radius-xl);font-weight:600;letter-spacing:0.5px;transition:all 0.3s ease;border:none;cursor:pointer;gap:0.5rem}.btn-primary-modern{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--text-light);box-shadow:0 4px 15px rgba(67,97,238,0.3)}.btn-primary-modern:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(67,97,238,0.4);filter:brightness(1.1)}.btn-base{display:inline-flex;align-items:center;justify-content:center;padding:var(--btn-padding-y) var(--btn-padding-x);font-weight:var(--btn-font-weight);border-radius:var(--radius-xl);transition:var(--btn-transition);border:2px solid transparent;cursor:pointer;text-decoration:none;gap:0.5rem;white-space:nowrap}.btn-modern,.btn-base{display:inline-flex;align-items:center;justify-content:center;padding:0.75rem 1.75rem;border-radius:var(--radius-xl);font-weight:600;gap:0.75rem;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.btn-base:hover{transform:translateY(-2px)}.btn-base:active{transform:translateY(0)}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:var(--text-light);box-shadow:0 4px 15px rgba(67,97,238,0.3)}.btn-primary:hover{box-shadow:0 6px 20px rgba(67,97,238,0.4);filter:brightness(1.1)}.btn-secondary{background:var(--bg-surface);color:var(--text-main);border-color:rgba(0,0,0,0.1)}.btn-secondary:hover{background:var(--bg-body);border-color:var(--primary-color)}.btn-success{background:var(--success-color);color:var(--text-light);box-shadow:0 4px 15px rgba(76,201,240,0.3)}.btn-danger{background:var(--danger-color);color:var(--text-light);box-shadow:0 4px 15px rgba(230,57,70,0.3)}.btn-outline{background:transparent;border-color:var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:var(--text-light)}.btn-sm{padding:0.5rem 1rem;font-size:0.875rem}.btn-lg{padding:1rem 2rem;font-size:1.125rem}.btn-icon{width:45px;height:45px;padding:0;border-radius:50%}.btn-icon i{font-size:1.25rem}.nav-responsive-dir{direction:ltr;text-align:left}@media (max-width:991.98px){.nav-responsive-dir{direction:rtl!important;text-align:right!important}.nav-responsive-dir .navbar-nav{padding-right:0;padding-left:0}}.nav-assets-wrapper{display:flex;align-items:center;gap:15px}.user-assets-pill{display:flex;align-items:center;background:rgba(255,255,255,0.05);border:1px solid var(--glass-border);border-radius:50px;padding:4px 12px;backdrop-filter:blur(5px)}.asset-item{display:flex;align-items:center;gap:6px;padding:2px 5px}.asset-divider{width:1px;height:18px;background:var(--glass-border);margin:0 10px}.asset-value{font-weight:700;font-size:0.95rem;color:var(--text-main)}.asset-unit{font-size:0.75rem;color:var(--text-secondary)}.wallet-icon{color:#2ecc71}.points-icon{color:#f1c40f}.nav-cart-link{position:relative;color:var(--text-main);font-size:1.2rem;transition:transform 0.2s}.nav-cart-link:hover{transform:scale(1.1)}.cart-badge{position:absolute;top:-8px;right:-10px;background:var(--amazon-orange,#ff9900);color:#000;font-size:0.7rem;font-weight:800;min-width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:2px solid var(--bg-body)}@media (max-width:500px){.asset-unit{display:none}.user-assets-pill{padding:4px 8px}.nav-assets-wrapper{gap:10px}}@media (min-width:992px){[dir="ltr"] .text-lg-start{text-align:left!important}[dir="ltr"] .text-lg-end{text-align:right!important}.main-footer .container{max-width:100%;padding-left:5%;padding-right:5%}}.main-footer{background:var(--bg-surface);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);border-top:var(--glass-border);padding:2.5rem 0;box-shadow:var(--shadow-lg)}.social-link{background:var(--bg-glass);color:var(--primary-color);border:var(--glass-border);border-radius:var(--radius-md);width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;transition:all 0.3s ease}.social-link:hover{background:var(--primary-color);color:var(--text-light);transform:translateY(-3px)}.main-footer{background:var(--bg-surface);backdrop-filter:var(--glass-blur);border-top:var(--glass-border);padding:3rem 0 2rem 0;color:var(--text-main);transition:all 0.3s ease}.footer-logo{color:var(--primary-color);font-weight:800;letter-spacing:-0.5px}.footer-tagline{color:var(--text-secondary)}.install-app-btn{background:var(--primary-color);color:var(--text-light);border:none;padding:8px 20px;border-radius:var(--radius-md);font-size:0.9rem;font-weight:600;display:inline-flex;align-items:center;gap:8px;transition:all 0.3s ease;box-shadow:var(--shadow-sm)}.install-app-btn:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.social-link{width:42px;height:42px;display:flex;align-items:center;justify-content:center;background:var(--bg-glass);color:var(--primary-color);border:var(--glass-border);border-radius:var(--radius-md);text-decoration:none;transition:all 0.3s cubic-bezier(0.4,0,0.2,1)}.social-link:hover{background:var(--primary-color);color:var(--text-light);transform:translateY(-5px) rotate(8deg);box-shadow:var(--shadow-md)}.copyright-text{color:var(--text-secondary);font-size:0.85rem}.copyright-text strong{color:var(--primary-color)}@media (max-width:991px){.footer-content{text-align:center}.install-app-btn{margin-bottom:1rem}}