:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;color:#333;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;overflow-x:hidden;width:100%}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600}a{font-weight:500;text-decoration:inherit}button{font-family:inherit}[dir=rtl]{direction:rtl;text-align:right}[dir=ltr]{direction:ltr;text-align:left}[lang=ar]{font-family:Segoe UI,Tahoma,Arial,sans-serif}[dir=rtl] .form-group,[dir=rtl] .form-group label,[dir=rtl] .form-group input,[dir=rtl] .form-group select,[dir=rtl] .form-group textarea{text-align:right}[dir=rtl] .students-table{direction:rtl}[dir=rtl] .students-table th,[dir=rtl] .students-table td{text-align:right}[dir=rtl] .pagination{direction:rtl}[dir=rtl] .btn-back:before{content:"→"}[dir=ltr] .btn-back:before{content:"←"}[dir=rtl] .filter-group label{text-align:right}[dir=rtl] .action-buttons,[dir=rtl] .checkbox-group label{direction:rtl}[dir=rtl] input[type=checkbox]{margin-left:.5rem;margin-right:0}[dir=rtl] .page-header{direction:rtl}[dir=rtl] .results-info,[dir=rtl] .empty-state{text-align:right}.language-switcher{position:relative;display:inline-block}.language-switcher-current{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;background-color:#ffffff1a;border:1px solid rgba(255,255,255,.2);border-radius:8px;cursor:pointer;transition:all .3s ease;color:#fff;font-size:.9rem;font-weight:500;outline:none;box-shadow:0 2px 4px #0000001a}.language-switcher-current:hover{background-color:#fff3;transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.language-switcher-current.active{background-color:#ffffff40;border-color:#fff6;box-shadow:0 4px 12px #0003}.language-flag{font-size:1.3rem;line-height:1;filter:drop-shadow(0 1px 2px rgba(0,0,0,.2))}.language-name{font-weight:500;white-space:nowrap}.language-arrow{font-size:.7rem;transition:transform .3s ease;margin-left:.25rem}.language-arrow.open{transform:rotate(180deg)}.language-dropdown{position:absolute;top:calc(100% + .5rem);left:0;background-color:#fff;border-radius:8px;box-shadow:0 8px 24px #0003;overflow:hidden;z-index:1000;min-width:160px;animation:slideDown .2s ease-out;border:1px solid rgba(0,0,0,.1)}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}[dir=rtl] .language-dropdown{left:auto;right:0}.language-option{display:flex;align-items:center;gap:.75rem;width:100%;padding:.75rem 1rem;background:none;border:none;text-align:left;cursor:pointer;transition:all .2s ease;color:#333;font-size:.9rem;font-weight:500;position:relative;outline:none}[dir=rtl] .language-option{text-align:right}.language-option:hover{background-color:#f5f5f5;padding-left:1.25rem}[dir=rtl] .language-option:hover{padding-left:1rem;padding-right:1.25rem}.language-option.active{background-color:#e3f2fd;color:#2d4f6b;font-weight:600}.language-option.active:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background-color:#2d4f6b}[dir=rtl] .language-option.active:before{left:auto;right:0}.language-check{margin-left:auto;color:#2d4f6b;font-weight:700;font-size:1rem}[dir=rtl] .language-check{margin-left:0;margin-right:auto}.admin-sidebar .language-switcher{width:100%;padding:0 1.5rem;margin-bottom:1rem}.admin-sidebar .language-switcher-current{background-color:#ffffff1a;border-color:#fff3;color:#fff;width:100%;justify-content:space-between}.admin-sidebar .language-switcher-current:hover{background-color:#fff3}.admin-sidebar .language-dropdown{left:1.5rem;right:1.5rem;width:calc(100% - 3rem)}[dir=rtl] .admin-sidebar .language-dropdown{left:1.5rem;right:1.5rem}.navbar .language-switcher-current{background-color:transparent;border-color:#ffffff4d;color:#fff}.navbar .language-switcher-current:hover{background-color:#ffffff26}.navbar.scrolled .language-switcher-current{background-color:#2d4f6b1a;border-color:#2d4f6b4d;color:#2d4f6b}.navbar.scrolled .language-switcher-current:hover{background-color:#2d4f6b26}.navbar.scrolled .language-flag{filter:none}@media(max-width:768px){.language-name{display:none}.language-switcher-current{padding:.5rem;gap:.25rem}.language-dropdown{min-width:120px}.language-option{padding:.625rem .875rem;font-size:.85rem}.navbar .language-switcher-current{background-color:#fff!important;border-color:#ddd!important;color:#333!important}.navbar .language-switcher-current:hover{background-color:#f5f5f5!important}.navbar .language-switcher-current.active{background-color:#e3f2fd!important;border-color:#2d4f6b!important;color:#2d4f6b!important}.navbar .language-flag{filter:none!important}.navbar .language-arrow{color:#333!important}}.navbar{background-color:transparent;padding:0;position:fixed;top:0;left:0;right:0;z-index:1000;transition:background-color .3s,box-shadow .3s}.navbar.scrolled{background-color:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 4px #0000001a}.navbar-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;position:relative}.navbar-logo{display:flex;align-items:center;gap:.75rem;text-decoration:none;z-index:1001}.logo-img{height:40px;width:auto;object-fit:contain}.logo-text{font-size:1.5rem;font-weight:700;color:#2d4f6b}.navbar:not(.scrolled) .logo-text{color:#fff}.navbar-menu{display:flex;align-items:center;gap:2rem}.navbar-link{color:#333;text-decoration:none;font-weight:500;transition:color .3s}.navbar:not(.scrolled) .navbar-link{color:#fff}.navbar-link:hover{color:#2d4f6b}.navbar:not(.scrolled) .navbar-link:hover{color:#fffc}.navbar-language{display:flex;align-items:center}.navbar-buttons{display:flex;align-items:center;gap:1rem;margin-left:1rem}[dir=rtl] .navbar-buttons{margin-left:0;margin-right:1rem}.navbar-btn{padding:.6rem 1.5rem;border-radius:5px;text-decoration:none;font-weight:500;transition:all .3s;border:none;cursor:pointer;display:inline-block;text-align:center}.navbar-btn-login{background-color:#fff;color:#2d4f6b;border:2px solid #2d4f6b}.navbar:not(.scrolled) .navbar-btn-login{background-color:transparent;color:#fff;border:2px solid white}.navbar-btn-login:hover{background-color:#f0f7ff}.navbar:not(.scrolled) .navbar-btn-login:hover{background-color:#fff3}.navbar-btn-signup{background-color:#2d4f6b;color:#fff}.navbar:not(.scrolled) .navbar-btn-signup{background-color:#fff;color:#2d4f6b}.navbar-btn-signup:hover{background-color:#1f3647}.navbar:not(.scrolled) 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.language-switcher-current{width:100%;background-color:#fff;color:#333;border:1px solid #ddd}.navbar-buttons{flex-direction:column;margin-left:0;width:100%;gap:1rem;margin-top:1rem;padding-top:.5rem}.navbar-btn{width:100%;text-align:center;color:#2d4f6b!important;background-color:#fff!important;border:2px solid #2d4f6b!important}.navbar-btn-signup{background-color:#2d4f6b!important;color:#fff!important}}@media(max-width:480px){.navbar-container{padding:1rem}.logo-text{font-size:1.2rem}.logo-img{height:35px}}.footer{background-color:#2d4f6b;color:#fff;padding:3rem 2rem 1rem;margin-top:auto}.footer-container{max-width:1200px;margin:0 auto}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-bottom:2rem}.footer-section h3{color:#fff;margin-bottom:1rem;font-size:1.5rem}.footer-section h4{color:#fff;margin-bottom:1rem;font-size:1.1rem}.footer-section p{color:#fffc;line-height:1.6;font-size:.9rem}.footer-section ul{list-style:none;padding:0;margin:0}.footer-section ul li{margin-bottom:.75rem}.footer-section ul li a{color:#fffc;text-decoration:none;transition:color .3s;font-size:.9rem}.footer-section ul li a:hover{color:#fff}.phone-number{direction:ltr!important;text-align:left!important;unicode-bidi:embed}.footer-section ul li{color:#fffc;font-size:.9rem}.social-links{display:flex;gap:1rem;flex-wrap:wrap}.social-links a{color:#fffc;text-decoration:none;transition:color .3s;font-size:.9rem}.social-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.2);padding-top:1.5rem;text-align:center}.footer-bottom p{color:#fffc;font-size:.9rem;margin:0}@media(max-width:768px){.footer{padding:2rem 1rem 1rem}.footer-content{grid-template-columns:1fr;gap:2rem}.social-links{flex-direction:column;gap:.5rem}}.admin-sidebar{width:250px;background-color:#2d4f6b;color:#fff;height:100vh;position:fixed;left:0;top:0;display:flex;flex-direction:column;box-shadow:2px 0 4px #0000001a;z-index:100;transition:left .3s}[dir=rtl] .admin-sidebar{left:auto;right:0;box-shadow:-2px 0 4px #0000001a}.nav-label{font-size:.95rem;font-weight:500;flex:1}.nav-group{width:100%}.nav-group-toggle{position:relative}.nav-arrow{margin-left:auto;font-size:.8rem;transition:transform .3s}[dir=rtl] .nav-arrow{margin-left:0;margin-right:auto}[dir=rtl] .nav-arrow.open{transform:rotate(-90deg)}.nav-submenu{background-color:#0003;padding:.5rem 0}.nav-subitem{padding-left:3rem}[dir=rtl] .nav-subitem{padding-left:1.5rem;padding-right:3rem}.logout-btn{width:100%;display:flex;align-items:center;padding:1rem 1.5rem;background:none;border:none;color:#fffc;cursor:pointer;transition:all .3s;font-size:.95rem;font-weight:500;font-family:inherit}.logout-btn:hover{background-color:#ffffff1a;color:#fff}@media(max-width:768px){.sidebar-toggle-btn{display:flex;align-items:center;justify-content:center}.sidebar-overlay{display:block}.admin-sidebar{width:280px;max-width:85%;left:-100%;transition:left 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.sidebar-toggle-btn{left:auto;right:1rem}.sidebar-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100vh;background-color:#00000080;z-index:99}.student-sidebar{width:250px;background-color:#2d4f6b;color:#fff;height:100vh;position:fixed;left:0;top:0;display:flex;flex-direction:column;box-shadow:2px 0 4px #0000001a;z-index:100;transition:left .3s}[dir=rtl] .student-sidebar{left:auto;right:0;box-shadow:-2px 0 4px #0000001a}.sidebar-header{padding:2rem 1.5rem;border-bottom:1px solid rgba(255,255,255,.1);position:relative}.sidebar-close-btn{display:none;position:absolute;top:1rem;right:1rem;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;padding:.5rem;border-radius:50%;width:35px;height:35px;align-items:center;justify-content:center;transition:background-color .3s}.sidebar-close-btn:hover{background-color:#fff3}[dir=rtl] .sidebar-close-btn{right:auto;left:1rem}.sidebar-header h2{margin:0 0 .5rem;font-size:1.5rem;color:#fff}.sidebar-header p{margin:0;font-size:.85rem;opacity:.8}.sidebar-user-info-link{text-decoration:none;color:inherit;display:block;transition:background-color .3s}.sidebar-user-info-link:hover{background-color:#ffffff1a}.sidebar-user-info{padding:1.5rem;border-bottom:1px solid rgba(255,255,255,.1);display:flex;align-items:center;gap:1rem}.user-avatar,.user-avatar-image{width:50px;height:50px;border-radius:50%;background-color:#fff3;display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0;color:#fff;object-fit:cover;border:2px solid rgba(255,255,255,.3)}.user-details{flex:1;min-width:0}.user-name{font-weight:500;font-size:.95rem;margin-bottom:.25rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-email{font-size:.8rem;opacity:.8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-language{padding:0 1.5rem;margin-bottom:1rem}.sidebar-nav{flex:1;padding:1rem 0;overflow-y:auto}.nav-item{display:flex;align-items:center;padding:1rem 1.5rem;color:#fffc;text-decoration:none;transition:all .3s;border-left:3px solid transparent;width:100%;background:none;border-top:none;border-bottom:none;border-right:none;text-align:left;font-family:inherit;font-size:.95rem;cursor:pointer}[dir=rtl] .nav-item{border-left:none;border-right:3px solid transparent;text-align:right}.nav-item:hover{background-color:#ffffff1a;color:#fff}.nav-item.active{background-color:#ffffff26;color:#fff;border-left-color:#fff}[dir=rtl] .nav-item.active{border-left-color:transparent;border-right-color:#fff}.nav-icon{font-size:1.2rem;margin-right:.75rem;width:24px;text-align:center;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:inherit}[dir=rtl] .nav-icon{margin-right:0;margin-left:.75rem}.nav-label{flex:1}.nav-group{position:relative}.nav-group-toggle{display:flex;align-items:center;justify-content:space-between}.nav-arrow{transition:transform .3s;font-size:.8rem}.nav-arrow.open{transform:rotate(90deg)}.nav-submenu{background-color:#0003;padding-left:1rem}.nav-subitem{padding-left:3rem!important;font-size:.9rem}[dir=rtl] .nav-subitem{padding-left:1rem!important;padding-right:3rem!important}.sidebar-footer{padding:1rem 0;border-top:1px solid rgba(255,255,255,.1)}.logout-btn{display:flex;align-items:center;padding:1rem 1.5rem;color:#fffc;text-decoration:none;transition:all .3s;border:none;width:100%;background:none;text-align:left;font-family:inherit;font-size:.95rem;cursor:pointer}[dir=rtl] .logout-btn{text-align:right}.logout-btn:hover{background-color:#f003;color:#fff}@media(max-width:768px){.sidebar-toggle-btn{display:flex;align-items:center;justify-content:center}.sidebar-overlay{display:block}.student-sidebar{width:280px;max-width:85%;left:-100%;transition:left .3s ease}.student-sidebar.open{left:0}[dir=rtl] .student-sidebar{left:auto;right:-100%;transition:right .3s ease}[dir=rtl] .student-sidebar.open{right:0}.sidebar-close-btn{display:flex}}.student-layout{display:flex;min-height:100vh;background-color:#f5f5f5}.student-main-content{flex:1;margin-left:250px;padding:2rem;transition:margin-left .3s}[dir=rtl] .student-main-content{margin-left:0;margin-right:250px}@media(max-width:768px){.student-main-content{margin-left:0;padding:5rem 1rem 1rem}[dir=rtl] .student-main-content{margin-right:0}}.whatsapp-button{position:fixed;bottom:20px;right:20px;width:60px;height:60px;background-color:#25d366;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px #25d36666;z-index:999;transition:all .3s ease;outline:none;animation:slideInRight .5s ease-out}[dir=rtl] .whatsapp-button{right:auto;left:20px;animation:slideInLeft .5s ease-out}@keyframes slideInRight{0%{transform:translate(100px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes slideInLeft{0%{transform:translate(-100px);opacity:0}to{transform:translate(0);opacity:1}}.whatsapp-button:hover{background-color:#20ba5a;transform:scale(1.1);box-shadow:0 6px 20px #25d36699}.whatsapp-button:active{transform:scale(.95)}.whatsapp-icon{width:32px;height:32px;color:#fff;z-index:2;position:relative}.whatsapp-pulse{position:absolute;width:100%;height:100%;border-radius:50%;background-color:#25d366;animation:pulse 2s infinite;z-index:1}@keyframes pulse{0%{transform:scale(1);opacity:1}50%{transform:scale(1.3);opacity:.5}to{transform:scale(1.5);opacity:0}}@media(max-width:768px){.whatsapp-button{width:56px;height:56px;bottom:15px;right:15px}[dir=rtl] .whatsapp-button{left:15px}.whatsapp-icon{width:28px;height:28px}}@media(max-width:480px){.whatsapp-button{width:50px;height:50px;bottom:10px;right:10px}[dir=rtl] .whatsapp-button{left:10px}.whatsapp-icon{width:24px;height:24px}}.home{min-height:calc(100vh - 80px);overflow-x:hidden;width:100%}.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;color:#fff;text-align:center;overflow:hidden}.hero-video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1}.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,#2d4f6bb3,#1f3647b3);z-index:2}.hero-content{position:relative;z-index:3;max-width:800px;padding:2rem;margin:0 auto}.hero-title{font-size:3rem;margin-bottom:1rem;font-weight:700}.hero-subtitle{font-size:1.5rem;margin-bottom:1rem;opacity:.9}.hero-description{font-size:1.1rem;margin-bottom:2rem;opacity:.8;line-height:1.6}.hero-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn{padding:.8rem 2rem;border-radius:5px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .3s;border:none}.btn-primary{background-color:#fff;color:#2d4f6b}.btn-primary:hover{background-color:#f0f7ff;transform:translateY(-2px);box-shadow:0 4px 8px #0003}.btn-secondary{background-color:transparent;color:#fff;border:2px solid white}.btn-secondary:hover{background-color:#ffffff1a;transform:translateY(-2px)}.container{max-width:1200px;margin:0 auto;padding:0 2rem}.feature-section{padding:6rem 0;opacity:0;transform:translateY(50px);transition:all .8s ease-out;position:relative}.feature-section:nth-child(2n){background:linear-gradient(180deg,#fff,#f8f9fa)}.feature-section:nth-child(odd){background:linear-gradient(180deg,#f8f9fa,#fff)}.feature-section.visible{opacity:1;transform:translateY(0)}.feature-content{display:flex;align-items:center;gap:4rem;max-width:1100px;margin:0 auto}.feature-content.reverse{flex-direction:row-reverse}.feature-icon-wrapper{flex:0 0 auto;display:flex;align-items:center;justify-content:center}.feature-icon{width:180px;height:180px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#2d4f6b,#4a90a4);border-radius:50%;color:#fff;font-size:5rem;box-shadow:0 10px 30px #2d4f6b4d;position:relative}.feature-icon.floating{animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.feature-icon:before{content:"";position:absolute;inset:-10px;border-radius:50%;background:linear-gradient(135deg,#2d4f6b33,#4a90a433);z-index:-1;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:.7}50%{transform:scale(1.1);opacity:.4}}.feature-text{flex:1}.feature-title{font-size:2.5rem;color:#2d4f6b;margin-bottom:1.5rem;font-weight:700;line-height:1.2}.feature-description{font-size:1.2rem;color:#666;line-height:1.8;margin-bottom:2rem}.btn-cta{background:linear-gradient(135deg,#2d4f6b,#4a90a4);color:#fff;padding:1rem 2.5rem;font-size:1.1rem;font-weight:600;border-radius:50px;border:none;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #2d4f6b4d}.btn-cta:hover{transform:translateY(-2px);box-shadow:0 6px 20px #2d4f6b66;background:linear-gradient(135deg,#1f3d52,#2d4f6b)}@media(max-width:768px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1.2rem}.feature-section{padding:4rem 0}.feature-content{flex-direction:column!important;gap:2.5rem;text-align:center}.feature-content.reverse{flex-direction:column!important}.feature-icon{width:140px;height:140px;font-size:4rem}.feature-title{font-size:2rem;margin-bottom:1rem}.feature-description{font-size:1.1rem;margin-bottom:1.5rem}.btn-cta{padding:.9rem 2rem;font-size:1rem}.container{padding:0 1.5rem}}.levels-intro{padding:5rem 2rem;background:linear-gradient(180deg,#fff,#f0f7ff);text-align:center}.levels-intro-title{font-size:2.8rem;color:#2d4f6b;margin-bottom:1rem;font-weight:700;position:relative;display:inline-block;width:100%}.levels-intro-title:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:80px;height:4px;background:linear-gradient(90deg,#2d4f6b,#4a90a4);border-radius:2px}.levels-intro-subtitle{font-size:1.2rem;color:#666;margin-top:2rem;max-width:600px;margin-left:auto;margin-right:auto}.level-section{padding:5rem 0;opacity:0;transition:all .8s 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