@import"https://fonts.googleapis.com/css2?family=Cairo:wght@400;600;700;900&display=swap";html{scroll-behavior:smooth}:root{--bg-color: #ffffff;--text-main: #111111;--text-desc: #555555;--nav-bg: #ffffff;--accent-color: #6366f1;--blob-color: #f0f2f5}.container.dark{--bg-color: #0f1014;--text-main: #ffffff;--text-desc: #b0b0b0;--nav-bg: #0f1014;--blob-color: #1e2229}*{margin:0;padding:0;box-sizing:border-box;font-family:Cairo,sans-serif;transition:all .3s ease}.container{min-height:100vh;display:flex;flex-direction:column;background-color:var(--bg-color)}.navbar{display:flex;justify-content:space-between;align-items:center;padding:20px 8%;background-color:var(--nav-bg);border-bottom:1px solid rgba(0,0,0,.05);position:relative;z-index:1000;opacity:0;animation:revealUp .8s cubic-bezier(.2,.8,.2,1) forwards;animation-delay:.1s}.logo{font-size:26px;font-weight:900;color:var(--accent-color);cursor:pointer}.nav-left{display:flex;align-items:center;gap:40px}.nav-right-group{display:flex;align-items:center;gap:60px}.nav-links{display:flex;gap:25px}.nav-links.desktop-nav{display:flex}.nav-links.mobile-nav{display:none}.nav-links a{text-decoration:none;color:var(--text-main);font-weight:600;font-size:16px;position:relative;padding-bottom:5px}.nav-links a:hover{color:var(--accent-color);transform:translateY(-2px)}.nav-links a.active{color:var(--accent-color)}.nav-links a.active:after{content:"";position:absolute;bottom:0;right:0;width:100%;height:2px;background-color:var(--accent-color);border-radius:2px;animation:slideIn .3s ease forwards}.controls{display:flex;align-items:center;gap:20px}.user-controls{display:flex;align-items:center;gap:15px}.logout-btn{border:none;background-color:#8b2b2b;color:#fff;font-weight:700;padding:8px 20px;border-radius:12px;cursor:pointer;font-size:15px;transition:background-color .3s ease}.logout-btn:hover{background-color:#702222}.profile-img{width:40px;height:40px;border-radius:50%;object-fit:cover;border:2px solid var(--accent-color)}.telegram-auth-wrapper{display:flex;align-items:center}.hamburger-btn{display:none;background:none;border:none;color:var(--text-main);cursor:pointer;padding:5px}.theme-switch{width:54px;height:28px;border-radius:30px;background-color:#ccc;border:none;position:relative;cursor:pointer;transition:background-color .3s ease;display:flex;align-items:center;padding:0;flex-shrink:0}.theme-switch.active{background-color:#4ade80}.switch-knob{width:22px;height:22px;background-color:#fff;border-radius:50%;position:absolute;right:3px;transition:transform .3s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 4px #0003}.theme-switch.active .switch-knob{transform:translate(-26px)}.btn-primary{background-color:var(--accent-color);color:#fff;border:none;padding:16px 45px;border-radius:12px;font-weight:700;font-size:1.2rem;cursor:pointer;transition:all .3s ease;font-family:Cairo,sans-serif;text-decoration:none;display:inline-flex;justify-content:center;align-items:center}.btn-primary:hover{transform:translateY(-5px);box-shadow:0 10px 20px #6366f166}.btn-secondary{background:transparent;color:var(--text-main);border:2px solid var(--accent-color);padding:16px 45px;border-radius:12px;font-weight:700;font-size:1.2rem;cursor:pointer;transition:all .3s ease;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;font-family:Cairo,sans-serif}.btn-secondary:hover{background-color:#6366f10d;transform:translateY(-5px)}.btn-orange,.btn-purple{flex:1!important;padding:12px 5px!important;border-radius:10px!important;font-weight:800!important;font-size:1rem!important;cursor:pointer;border:none!important;transition:.3s ease;display:flex!important;align-items:center;justify-content:center;color:#fff!important;white-space:nowrap}.btn-orange{background-color:#e67e22!important}.btn-purple{background:linear-gradient(135deg,#6366f1,#a855f7)!important;box-shadow:0 4px 15px #a855f766;min-width:100px}.btn-orange:hover,.btn-purple:hover{transform:translateY(-3px);filter:brightness(1.1);box-shadow:0 8px 20px #0000004d}.btn-purple:hover{filter:brightness(1.2);transform:translateY(-2px);box-shadow:0 8px 25px #a855f799}.footer{opacity:1!important;animation:none!important;padding:20px;text-align:center}@keyframes revealUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes revealScale{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideIn{0%{width:0;opacity:0}to{width:100%;opacity:1}}@media(max-width:768px){.navbar{padding:15px 5%}.logo{font-size:22px}.hamburger-btn{display:block;z-index:1001}.nav-right-group{gap:20px}.nav-links.desktop-nav{display:none}.nav-links.mobile-nav{display:flex}.nav-left{position:absolute;top:100%;left:0;width:100%;background-color:var(--nav-bg);flex-direction:column;padding:20px 0;box-shadow:0 10px 30px #00000026;border-top:1px solid rgba(0,0,0,.05);gap:25px;z-index:1000;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);transition:all .3s ease}.container.dark .nav-left{box-shadow:0 10px 30px #00000080;border-top:1px solid rgba(255,255,255,.05)}.nav-left.mobile-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.nav-links{flex-direction:column;width:100%;align-items:center;gap:20px}.nav-links a{font-size:18px}.controls{flex-direction:column;width:100%;align-items:center}.telegram-auth-wrapper{transform:scale(.85);transform-origin:center}.logout-btn{padding:6px 14px;font-size:13px;border-radius:8px}.profile-img{width:32px;height:32px}}.theme-switch{position:relative;display:inline-block;width:66px;height:34px;-webkit-user-select:none;user-select:none;cursor:pointer;margin:0;padding:0}.theme-switch-input{position:absolute;opacity:0;width:0;height:0;margin:0}.slider{position:absolute;inset:0;background-color:#38bdf8;border-radius:34px;display:flex;justify-content:space-between;align-items:center;padding:0 8px;box-shadow:inset 0 2px 5px #0003;transition:background-color .4s ease,border .4s ease;overflow:hidden;border:1px solid transparent;box-sizing:border-box}.theme-switch-input:checked+.slider{background-color:#1a1c23;border:1px solid #a855f7}.slider-thumb{position:absolute;height:26px;width:26px;left:3px;bottom:3px;background-color:#fff;border-radius:50%;z-index:2;box-shadow:0 2px 6px #0000004d;transition:transform .4s cubic-bezier(.68,-.55,.26,1.55),background-color .4s}.theme-switch-input:checked+.slider .slider-thumb{transform:translate(32px);background-color:#f1f5f9}.icon{z-index:1;transition:opacity .3s ease,transform .4s ease;display:block}.sun-icon{color:#fef08a}.moon-icon{color:#fde047}.theme-switch-input:not(:checked)+.slider .moon-icon{opacity:0;transform:translate(15px)}.theme-switch-input:checked+.slider .sun-icon{opacity:0;transform:translate(-15px)}.hero-section{min-height:calc(100vh - 85px);display:flex;align-items:center;justify-content:center;padding:40px 8%;overflow:hidden;background-color:transparent}.hero-content-wrapper{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:1300px;gap:60px}.hero-text-side{flex:1;text-align:right;display:flex;flex-direction:column;align-items:flex-start;z-index:2}.hero-title{font-size:4.5rem;font-weight:900;color:var(--text-main, #ffffff);line-height:1.2;margin-bottom:15px}.highlight{color:var(--accent-color, #a855f7);text-shadow:0 0 20px rgba(168,85,247,.4)}.hero-subtitle{font-size:2rem;color:var(--text-main, #e2e8f0);margin-bottom:25px;font-weight:700}.hero-description{font-size:1.2rem;color:var(--text-desc, #94a3b8);line-height:1.8;max-width:600px;margin-bottom:40px}.hero-cta-buttons{display:flex;justify-content:flex-start;align-items:center;gap:20px;margin-top:15px}.hero-visual-side{flex:1;position:relative;display:flex;align-items:center;justify-content:center;height:550px}.css-art-container{position:relative;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle at center,#f1f5f9,#e2e8f0 70%);box-shadow:0 30px 60px #0000001a,inset 0 0 0 1px #0000000d;display:flex;align-items:center;justify-content:center;z-index:1}.dark .css-art-container{background:radial-gradient(circle at center,#242736,#151720 70%);box-shadow:0 30px 60px #00000080,inset 0 0 0 1px #ffffff0d}.center-emblem{position:absolute;width:120px;height:120px;background:linear-gradient(135deg,var(--accent-color, #a855f7),#6d28d9);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 15px 35px #a855f766,inset -5px -5px 15px #0000004d;z-index:5;animation:floatCenter 6s ease-in-out infinite;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.emblem-icon{font-size:4rem;filter:drop-shadow(0 5px 10px rgba(0,0,0,.3))}.orbit{position:absolute;border-radius:50%;border:1px dashed rgba(255,255,255,.1)}.orbit-1{width:120%;height:120%;animation:spin 40s linear infinite;border:1px solid rgba(168,85,247,.2)}.orbit-2{width:90%;height:90%;animation:spin 30s linear infinite reverse}.orbit-3{width:60%;height:60%;animation:spin 20s linear infinite;border:1px dashed rgba(251,191,36,.2)}.shape{position:absolute;animation:floatShape 7s ease-in-out infinite;z-index:4}.shape-sphere{border-radius:50%}.sphere-1{width:80px;height:80px;background:radial-gradient(circle at 30% 30%,#3b82f6,#1e3a8a);box-shadow:-10px 10px 20px #00000080;top:15%;left:15%}.sphere-2{width:50px;height:50px;background:radial-gradient(circle at 30% 30%,#fbbf24,#b45309);box-shadow:-5px 5px 15px #00000080;bottom:25%;right:15%;animation-delay:1.5s}.shape-donut{width:90px;height:90px;border:22px solid var(--accent-color, #a855f7);border-radius:50%;box-sizing:border-box;box-shadow:inset -5px 5px 10px #0000004d,-5px 5px 15px #00000080;bottom:15%;left:20%;transform:rotateX(60deg) rotateY(20deg);animation-delay:2.5s}.shape-square{width:60px;height:60px;border:4px solid #f87171;background:transparent;transform:rotate(45deg);top:25%;right:25%;animation-delay:.5s}.art-text{position:absolute;font-family:Arial Black,sans-serif;font-weight:900;z-index:6;animation:floatText 5s ease-in-out infinite alternate;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.text-1{font-size:7rem;color:#34d399;top:-5%;right:35%;text-shadow:3px 3px 0 #059669,6px 6px 15px rgba(0,0,0,.6)}.text-2{font-size:4rem;color:#f472b6;top:30%;left:10%;text-shadow:2px 2px 0 #db2777}.text-3{font-size:5.5rem;color:#22d3ee;top:25%;left:30%;text-shadow:3px 3px 0 #0891b2,5px 5px 15px rgba(0,0,0,.5);animation-delay:1s}.text-4{font-size:5rem;color:#fb923c;top:20%;right:10%;text-shadow:3px 3px 0 #ea580c;animation-delay:2s}.text-5{font-size:4.5rem;color:#c084fc;bottom:5%;left:40%;text-shadow:2px 2px 0 #9333ea;animation-delay:1.5s}.q-card{position:absolute;background-color:var(--nav-bg, #1a1c23);border:1px solid var(--accent-color, #a855f7);padding:14px 28px;border-radius:12px;font-weight:800;font-size:1.1rem;color:var(--text-main, #ffffff);box-shadow:0 15px 30px #0006;animation:floatCard 6s ease-in-out infinite;white-space:nowrap;z-index:10;cursor:pointer;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.q-card:hover{transform:scale(1.08) translateY(-5px)!important;box-shadow:0 20px 40px #a855f766;border-color:#d8b4fe;animation-play-state:paused}.q-icon{margin-left:8px}.q-card-1{top:5%;right:-20%;animation-delay:0s}.q-card-2{top:45%;left:-25%;animation-delay:1.5s}.q-card-3{bottom:10%;right:-15%;animation-delay:3s}@keyframes spin{to{transform:rotate(360deg)}}@keyframes floatCenter{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes floatShape{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-20px) rotate(10deg)}}@keyframes floatText{0%{transform:translateY(0) scale(1)}to{transform:translateY(-15px) scale(1.05)}}@keyframes floatCard{0%{transform:translateY(0)}50%{transform:translateY(-12px)}to{transform:translateY(0)}}@media(max-width:1024px){.hero-content-wrapper{flex-direction:column;text-align:center;gap:40px}.hero-text-side{align-items:center;text-align:center}.hero-cta-buttons{justify-content:center}.hero-title{font-size:3rem}.hero-subtitle{font-size:1.6rem}.hero-visual-side{height:auto;padding:40px 0;width:100%}.css-art-container{width:320px;height:320px}.center-emblem{width:80px;height:80px}.emblem-icon{font-size:2.5rem}.text-1{font-size:5rem;top:-10%;right:25%}.text-3{font-size:4rem;top:20%;left:20%}.sphere-1{width:50px;height:50px}.shape-donut{width:60px;height:60px;border-width:15px}.q-card{padding:10px 20px;font-size:.95rem}.q-card-1{top:-10%;right:-5%}.q-card-2{left:-10%;top:40%}.q-card-3{bottom:-5%;right:-5%}}.courses-section{padding:100px 8%;background-color:var(--bg-color);text-align:center}.courses-main-title{font-size:2.8rem;margin-bottom:50px;font-weight:900;color:var(--text-main);display:inline-block;border-bottom:4px solid var(--accent-color)}.courses-wrapper{animation:revealScale .4s ease forwards}.courses-grid{display:flex;justify-content:center;gap:30px;flex-wrap:wrap}.course-card{background-color:var(--blob-color);width:100%;max-width:400px;border-radius:20px;overflow:hidden;box-shadow:0 10px 30px #0000004d;border:1px solid rgba(255,255,255,.05);transition:transform .3s ease,box-shadow .3s ease}.course-card:hover{transform:translateY(-10px);box-shadow:0 15px 40px #0006}.course-img-placeholder{width:100%;height:220px;background-color:#252a33;display:flex;align-items:center;justify-content:center;color:#444;font-weight:700}.course-info{padding:30px;text-align:right}.course-info h3{font-size:1.6rem;font-weight:800;color:var(--text-main);margin-bottom:12px}.course-info p{color:var(--text-desc);font-size:1rem;line-height:1.6;margin-bottom:30px;min-height:50px}.course-btns{display:flex!important;gap:12px!important;width:100%!important;margin-top:20px}.back-btn{background:transparent;color:var(--accent-color);border:2px solid var(--accent-color);padding:10px 25px;border-radius:10px;font-weight:700;font-size:1.1rem;cursor:pointer;margin-bottom:30px;transition:.3s ease;display:inline-flex;align-items:center;gap:8px}.back-btn:hover{background-color:#6366f10d;transform:translate(5px)}@media(max-width:768px){.courses-grid{flex-direction:column;align-items:center}}.viewer-section{padding:40px 8%;background-color:var(--bg-color);min-height:80vh}.viewer-header{margin-bottom:30px;display:flex;flex-direction:column;align-items:flex-start;gap:15px}.viewer-header h2{font-size:2rem;color:var(--text-main)}.viewer-layout{display:flex;gap:30px;align-items:flex-start}.playlist-sidebar{width:350px;flex-shrink:0;background-color:var(--blob-color);border-radius:15px;padding:20px;border:1px solid rgba(150,150,150,.1);box-shadow:0 5px 20px #0000000d}.sidebar-title{font-size:1.2rem;color:var(--text-main);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--accent-color)}.module-item{margin-bottom:10px;background-color:var(--bg-color);border-radius:10px;overflow:hidden;border:1px solid rgba(150,150,150,.1)}.module-header{width:100%;display:flex;justify-content:space-between;align-items:center;padding:15px;background:none;border:none;color:var(--text-main);font-weight:700;cursor:pointer;transition:.3s}.module-header:hover,.module-header.active{background-color:#6366f10d;color:var(--accent-color)}.module-content{padding:10px;background-color:var(--bg-color);border-top:1px solid rgba(150,150,150,.1)}.video-item{display:flex;justify-content:space-between;align-items:center;padding:12px 10px;border-radius:8px;cursor:pointer;transition:.2s;color:var(--text-desc);font-size:.95rem}.video-item:hover:not(.locked){background-color:#6366f11a;color:var(--accent-color)}.video-item.locked{opacity:.5;cursor:not-allowed}.video-item-info{display:flex;align-items:center;gap:10px}.viewer-main-content{flex:1;display:flex;flex-direction:column;gap:30px}.video-player-container{background-color:var(--blob-color);border-radius:15px;overflow:hidden;border:1px solid rgba(150,150,150,.1);box-shadow:0 10px 30px #0000001a}.video-placeholder{width:100%;aspect-ratio:16 / 9;background-color:#000;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;gap:15px}.video-details{padding:20px}.video-details h3{font-size:1.5rem;color:var(--text-main);margin-bottom:10px}.exams-container{background-color:var(--blob-color);border-radius:15px;padding:25px;border:1px solid rgba(150,150,150,.1)}.exams-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.exams-title{font-size:1.3rem;color:var(--text-main);margin-bottom:0}.pdf-upload-btn{display:flex;align-items:center;gap:8px;background-color:#6366f10d;color:var(--accent-color);border:1.5px dashed var(--accent-color);padding:8px 16px;border-radius:10px;cursor:pointer;font-weight:700;font-size:.95rem;transition:all .3s ease}.pdf-upload-btn:hover{background-color:var(--accent-color);color:#fff;border-style:solid;transform:translateY(-2px);box-shadow:0 5px 15px #6366f133}.exams-list{display:flex;flex-direction:column;gap:15px}.exam-card{display:flex;justify-content:space-between;align-items:center;background-color:var(--bg-color);padding:20px;border-radius:10px;border:1px solid rgba(150,150,150,.1);transition:transform .3s ease}.exam-card:hover{transform:translateY(-3px);box-shadow:0 5px 15px #00000014}.exam-info{display:flex;align-items:center;gap:15px}.exam-info h4{color:var(--text-main);font-size:1.1rem;margin-bottom:5px}@media(max-width:1024px){.viewer-layout{flex-direction:column}.playlist-sidebar{width:100%;order:2}.viewer-main-content{width:100%;order:1}}:root{--bg-color: #ffffff;--text-primary: #111111;--text-secondary: #555555;--accent-purple: #6d4aff;--nav-footer-bg: #111111;--nav-text: #ffffff}[data-theme=dark]{--bg-color: #0f0f0f;--text-primary: #ffffff;--text-secondary: #b0b0b0;--accent-purple: #8162ff;--nav-footer-bg: #000000}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;width:100%;min-height:100vh;background-color:var(--bg-color);color:var(--text-primary);font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;transition:background-color .4s ease,color .4s ease;direction:rtl}a{text-decoration:none;color:inherit}button{cursor:pointer;transition:.3s}