@charset "UTF-8";.navbar{position:sticky;top:0;z-index:var(--z-sticky);background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--gray-100)}.navbar-container{display:flex;align-items:center;justify-content:space-between;height:70px}.navbar-logo{display:flex;align-items:center;gap:var(--space-2);text-decoration:none}.navbar-logo-img{height:50px;width:auto}.navbar-logo-text{font-size:var(--text-xl);font-weight:var(--font-bold);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.navbar-links{display:none;align-items:center;gap:var(--space-2)}@media(min-width:768px){.navbar-links{display:flex}}.navbar-link{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--text-secondary);text-decoration:none;border-radius:var(--radius-lg);transition:all var(--transition-fast)}.navbar-link:hover{color:var(--primary-600);background:var(--primary-50)}.navbar-auth{display:none}@media(min-width:768px){.navbar-auth{display:flex;align-items:center;gap:var(--space-3)}}.navbar-user,.navbar-auth-buttons{display:flex;align-items:center;gap:var(--space-2)}.navbar-menu-btn{display:flex;align-items:center;justify-content:center;padding:var(--space-2);background:none;border:none;color:var(--text-primary);cursor:pointer;border-radius:var(--radius-md);transition:background var(--transition-fast)}.navbar-menu-btn:hover{background:var(--gray-100)}@media(min-width:768px){.navbar-menu-btn{display:none}}.navbar-mobile-overlay{position:fixed;inset:0;background-color:#0f172a66;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;opacity:0;visibility:hidden;transition:all .4s 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solid rgba(226,232,240,.8);position:sticky;top:0;z-index:1000;padding:.75rem 2rem}.header-container-fluid{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.header-right-side{display:flex;align-items:center;gap:3rem}.dashboard-logo-v2{display:flex;align-items:center;transition:transform .2s ease}.dashboard-logo-v2:hover{transform:scale(1.02)}.dashboard-logo-v2 img{height:40px;width:auto;object-fit:contain}.header-desktop-nav ul{display:flex;gap:.5rem;list-style:none}.nav-header-link{display:flex;align-items:center;gap:.6rem;padding:.6rem 1rem;color:var(--text-secondary);text-decoration:none;font-weight:700;font-size:.95rem;border-radius:.75rem;transition:all .2s ease}.nav-header-link:hover{color:var(--primary-600);background:#6366f10d}.nav-header-link.active{color:var(--primary-600);background:#6366f11a}.nav-header-link svg{font-size:1.1rem}.header-left-side{display:flex;align-items:center;gap:1.5rem}.user-header-profile{display:flex;align-items:center;gap:1rem;padding-left:1.5rem;border-left:1px solid #e2e8f0}.user-avatar-small{width:38px;height:38px;background:var(--primary-gradient);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}.user-details-hide-mobile h4{font-size:.9rem;margin:0;color:#1e293b}.user-details-hide-mobile span{font-size:.75rem;color:#64748b;display:block}.header-logout-btn{background:#fff;border:1px solid #f1f5f9;color:#ef4444;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.header-logout-btn:hover{background:#fef2f2;transform:rotate(10deg)}.mobile-menu-trigger{display:none;background:none;border:none;font-size:1.5rem;color:#64748b;cursor:pointer}.mobile-nav-dropdown{display:none;background:#fff;border-bottom:1px solid 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var(--space-4);display:flex;flex-direction:column;flex-grow:1}.course-name-exact{font-size:1.1rem;font-weight:700;color:#1e293b;margin-bottom:var(--space-1);line-height:1.3}.course-subtitle-exact{color:#64748b;font-size:.75rem;font-weight:500;margin-bottom:var(--space-3);line-height:1.4}.course-badges-exact::-webkit-scrollbar{display:none}.course-badges-exact{display:flex;gap:8px;margin-bottom:var(--space-6);flex-wrap:nowrap;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}.course-badge-pill{background:#f8fafc;color:#475569;padding:4px 8px;border-radius:var(--radius-sm);font-size:.65rem;font-weight:600;display:flex;align-items:center;gap:4px;white-space:nowrap;border:1px solid #eef2f7}.badge-icon{font-size:.9rem;color:#334155}.course-stats-exact{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:var(--space-6);color:#475569;font-size:.8rem;font-weight:600;border-top:1px solid 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#ffeeba}.star-icon-small{color:#f59e0b;font-size:.75rem}.card-content-exact{text-align:center;padding:0 var(--space-5) var(--space-6)}.teacher-name-bold{font-size:1.35rem;font-weight:800;color:#1e293b;margin-bottom:2px}.teacher-bio-exact{text-align:right;color:#64748b;font-size:.85rem;line-height:1.4;margin-bottom:var(--space-4);max-width:95%;margin-left:auto;margin-right:auto}.pills-row-exact{display:flex;justify-content:space-between;align-items:center;gap:6px;margin-bottom:var(--space-8);width:100%;padding:2px 0}.pills-row-exact::-webkit-scrollbar{display:none}.pill-item-gray{background:#f1f5f9;color:#1e293b;padding:4px 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p{font-size:var(--text-lg)}.filters-section{padding:var(--space-4);margin-bottom:var(--space-6)}}@media(max-width:640px){.filters-section{flex-direction:column;align-items:stretch}.filter-select{width:100%;min-width:0}}.course-details-page-v3{background:#fdfdff;min-height:100vh;direction:rtl;font-family:Segoe UI,Tahoma,Verdana,sans-serif;padding-bottom:150px}.hero-v3-dark{background-color:#fff;padding:10px 0 80px;color:#333;position:relative;overflow:hidden}.hero-v3-container{display:flex;flex-direction:column;justify-content:space-between;min-height:200px;position:relative;text-align:right}.hero-title-card{background:linear-gradient(135deg,#6366f1,#a855f7);padding:25px 20px;border-radius:20px;margin-bottom:25px;color:#fff;box-shadow:0 10px 30px #6366f133;display:inline-block;width:100%}.hero-stats-strip{display:inline-flex;align-items:center;background:linear-gradient(135deg,#6366f1,#a855f7);color:#fff;border-radius:16px;padding:15px 30px;margin-top:25px;gap:0;box-shadow:0 5px 20px #6366f140}.stat-item-strip{display:flex;align-items:center;gap:12px;padding:0 25px}.stat-icon-box{width:42px;height:42px;background:#fff3;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#fff}.stat-info{display:flex;flex-direction:column;justify-content:center}.stat-val{font-size:1.2rem;font-weight:800;line-height:1.1;border-color:#c6f6d5}.stat-lbl{font-size:.85rem;color:#ffffffb3;font-weight:500}.stat-divider{width:1px;height:30px;background:#ffffff26}.hero-alert-banner{display:inline-flex;align-items:center;gap:12px;padding:10px 0;font-size:1rem;font-weight:700;color:#f9d423;margin-bottom:10px}.alert-v3-icon{font-size:1.2rem}.hero-date-v3{display:inline-flex;align-items:center;gap:8px;color:#fbbf24;font-weight:600;margin-left:15px}.hero-content-v3{margin-top:auto}.main-layout-v3{display:flex;gap:40px;align-items:flex-start;position:relative;z-index:10}.hero-badges-row{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin-bottom:15px}.hero-badge-v3{padding:10px 30px;border-radius:50px;font-size:1rem;font-weight:700;color:var(--text-dark-muted);gap:10px;box-shadow:0 4px 15px #6366f133;transition:transform .2s}.hero-badge-v3:hover{transform:translateY(-2px)}.hero-badge-v3.yellow,.hero-badge-v3.green{background:linear-gradient(135deg,#6366f1,#a855f7);color:#fff}.hero-badge-icon{font-size:1.2rem;color:#fff}.hero-title-v3{font-size:3rem;font-weight:900;margin-bottom:25px;letter-spacing:-1px}.content-side-v3{flex:1;margin-top:-60px}.content-card-v3{background:#fff;border-radius:12px;box-shadow:0 10px 30px 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var(--transition-fast)}.step.active{background:var(--primary-600)}.password-input-container{position:relative;width:100%}.input-icon.is-toggle{cursor:pointer;color:var(--text-muted);right:auto;left:12px}.auth-card-lg{max-width:550px}.form-row{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media(min-width:480px){.form-row{grid-template-columns:repeat(2,1fr)}}.student-code-page{align-items:center;justify-content:center}.student-code-card{background:var(--white);padding:var(--space-8);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);max-width:500px;width:100%;text-align:center}.success-icon{width:60px;height:60px;border-radius:50%;background:var(--success-100);color:var(--success-500);display:inline-flex;align-items:center;justify-content:center;font-size:2rem;margin-bottom:var(--space-4)}.student-code-display{text-align:center;padding:var(--space-6);background:var(--gray-100);border-radius:var(--radius-lg);margin:var(--space-6) 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var(--space-16)}.my-courses-grid{display:grid;grid-template-columns:1fr;gap:var(--space-6)}@media(min-width:768px){.my-courses-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.my-courses-grid{grid-template-columns:repeat(3,1fr)}}.my-course-card-new{background-color:#fff;border-radius:12px;box-shadow:0 4px 12px #00000014;overflow:hidden;display:flex;flex-direction:column}.my-course-card-new__image{height:180px}.my-course-card-new__image img{width:100%;height:100%;object-fit:cover}.my-course-card-new__body{padding:1.25rem;display:flex;flex-direction:column;flex:1}.my-course-card-new__title{font-size:1.1rem;font-weight:700;margin:0 0 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var(--space-12)}.stat-card{padding:var(--space-4)}.stat-card .stat-value{font-size:1.25rem}.my-course-card-new__title{font-size:1rem}}.empty-state-card{text-align:center;padding:var(--space-12) var(--space-6);background:var(--bg-primary);border-radius:var(--radius-xl);margin-top:var(--space-8)}.empty-state-card h3{font-size:var(--text-xl);font-weight:var(--font-bold);margin-bottom:var(--space-2)}.empty-state-card p{color:var(--text-muted);margin-bottom:var(--space-6)}.student-course-page{min-height:100vh}.course-hero{background:var(--gradient-primary);padding:var(--space-12) 0;color:var(--text-inverse)}.course-hero .back-link{display:inline-flex;align-items:center;gap:var(--space-2);color:#fffc;text-decoration:none;font-size:var(--text-sm);margin-bottom:var(--space-4)}.course-hero h1{font-size:var(--text-3xl);font-weight:var(--font-bold);margin-bottom:var(--space-4)}.course-hero-meta{display:flex;flex-wrap:wrap;gap:var(--space-4);align-items:center}.course-hero-meta 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.lesson-number{background:var(--success-500);color:var(--text-inverse)}.lesson-number{width:50px;height:50px;display:flex;align-items:center;justify-content:center;background:var(--gray-100);border-radius:var(--radius-lg);font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--text-secondary);flex-shrink:0}.lesson-info{flex:1}.lesson-type-badge{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);font-size:var(--text-xs);font-weight:var(--font-medium);margin-bottom:var(--space-2)}.lesson-type-badge.video{background:var(--primary-100);color:var(--primary-600)}.lesson-type-badge.quiz{background:var(--accent-100);color:var(--accent-600)}.lesson-info h3{font-size:var(--text-base);font-weight:var(--font-semibold);margin-bottom:var(--space-1)}.lesson-meta{display:flex;flex-wrap:wrap;gap:var(--space-2);font-size:var(--text-sm);color:var(--text-muted)}.lesson-action{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--primary-100);border-radius:var(--radius-full);color:var(--primary-600);font-size:var(--text-lg);transition:all var(--transition-fast)}.lesson-card:hover .lesson-action{background:var(--primary-600);color:var(--text-inverse)}.premium-player-container{background-color:var(--bg-secondary);min-height:100vh;direction:rtl;padding-bottom:var(--space-12)}.lesson-stats-header{background:var(--gradient-dark);padding:var(--space-6) var(--space-8);border-radius:0 0 var(--radius-2xl) var(--radius-2xl);color:var(--text-inverse);margin-bottom:var(--space-8);position:relative;overflow:hidden;box-shadow:var(--shadow-lg)}.stats-header-inner{max-width:1400px;margin:0 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rgba(255,255,255,.2)}.stat-badge-item.success{background:var(--success-600);color:var(--text-inverse)}.stat-badge-item.info{background:var(--info-600);color:var(--text-inverse)}.stat-badge-item.warning{background:var(--warning-600);color:var(--text-inverse)}.header-progress-line{position:absolute;bottom:0;left:0;right:0;height:4px;background:#ffffff1a}.progress-fill{height:100%;background:var(--primary-600);transition:width .3s ease}.player-layout-main{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:380px 1fr;gap:2rem;padding:0 2rem}.playlist-sidebar-v2{background:var(--bg-primary);border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);overflow:hidden;height:fit-content}.playlist-header-v2{background:var(--bg-dark);padding:var(--space-8);color:var(--text-inverse)}.course-title-v2 h3{margin:0;font-size:1.25rem;font-weight:800;margin-bottom:.25rem;color:var(--text-inverse)}.course-info-subtitle{font-size:.9rem;font-weight:600;color:#cbd5e1}.playlist-progress-v2{margin-top:1.5rem}.progress-labels{display:flex;justify-content:space-between;font-size:.8rem;font-weight:600;margin-bottom:.5rem}.progress-bar-v2{height:6px;background:#ffffff1a;border-radius:3px;overflow:hidden}.bar-fill{height:100%;background:#fff}.playlist-section-header{background:var(--gray-100);padding:1rem 1.5rem;display:flex;align-items:center;gap:.75rem;font-weight:800;font-size:.95rem;color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none;transition:background-color .2s}.playlist-section-header:hover{background:var(--gray-200)}.playlist-items-v2{list-style:none;padding:0;margin:0}.playlist-item-v2{display:flex;align-items:center;padding:1.25rem 1.5rem;border-bottom:1px solid #f1f5f9;cursor:pointer;transition:all .2s}.playlist-item-v2:last-child{border-bottom:none}.playlist-item-v2.active{background:var(--primary-50);border-right:4px solid var(--primary-600)}.playlist-item-v2.active .item-name{color:var(--primary-700)}.playlist-item-v2.active .item-status-icon{color:var(--primary-600)}.playlist-item-v2.completed .item-status-icon{color:var(--success-600)}.playlist-item-right{display:flex;align-items:center;gap:.75rem;margin-left:1rem}.item-status-icon{font-size:1.2rem;color:#cbd5e1;margin-right:auto}.item-details{flex:1}.item-title-row{display:flex;justify-content:space-between;align-items:center}.item-name{font-weight:700;font-size:.95rem;color:var(--text-primary)}.type-icon{font-size:1.1rem;opacity:.6;color:var(--text-secondary)}.item-index{width:24px;height:24px;background:#1e293b;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:800}.video-content-section{display:flex;flex-direction:column;gap:2rem}.video-player-display{position:relative;border-radius:1.5rem;overflow:hidden;background:#000;box-shadow:0 20px 50px #0000001a;display:flex;flex-direction:column}.premium-iframe-wrapper{position:relative;padding-top:56.25%;user-select:none;-webkit-user-select:none}.premium-iframe-wrapper 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p{color:var(--text-primary);font-size:1.1rem;font-weight:500}.empty-tab-state{text-align:center;padding:3rem;color:#94a3b8}.empty-icon{font-size:3rem;margin-bottom:1rem}@media(max-width:1024px){.player-layout-main{grid-template-columns:1fr;padding:0 1.5rem;gap:1.5rem}.playlist-sidebar-v2{order:1}.video-content-section{order:2}.stats-header-inner{flex-direction:column;gap:1rem;text-align:center}.lesson-title-main{flex-direction:column;gap:.5rem}}@media(max-width:768px){.premium-player-container{padding-bottom:var(--space-6)}.lesson-stats-header{padding:var(--space-4);margin-bottom:var(--space-4);border-radius:0 0 var(--radius-xl) var(--radius-xl)}.lesson-icon-bg{width:40px;height:40px;font-size:1rem}.lesson-title-main h2{font-size:1.15rem}.stats-badges-row{gap:.5rem;width:100%}.stat-badge-item{padding:.4rem .6rem;font-size:.7rem;flex:1;min-width:120px}.player-layout-main{padding:0 .75rem;gap:1rem}.video-content-section{gap:1rem}.video-player-display{border-radius:.75rem}.playlist-header-v2{padding:var(--space-4)}.playlist-section-header,.playlist-item-v2{padding:.75rem 1rem}.tabs-nav-header{padding:.25rem;gap:.25rem}.tab-btn-v2{padding:.6rem .4rem;font-size:.8rem;gap:.4rem;flex-direction:column}.tab-content-v2{padding:1rem}.description-v2 p{font-size:.9rem}.section-item-v2{padding:.6rem;font-size:.85rem}.quiz-v2-header,.quiz-v2-body{padding:1rem}.quiz-v2-stats-grid{flex-wrap:wrap;gap:1rem}.quiz-v2-stat-item{flex:1 1 100%}.views-limit-reached-card.is-overlay{padding:1.5rem 1rem;justify-content:center}.views-limit-reached-card .icon{width:50px;height:50px;font-size:1.5rem;margin-bottom:.75rem}.views-limit-reached-card h3{font-size:1.1rem;margin-bottom:.5rem}.views-limit-reached-card p{font-size:.8rem;max-width:250px}.stat-v2-value{font-size:1rem}.premium-iframe-wrapper{padding-top:56.25%!important;background:#000;border-radius:var(--radius-xl) var(--radius-xl) 0 0;overflow:hidden}.youtube-target,.video-thumbnail-overlay,.custom-controls-overlay-v3{height:100%!important}.custom-control-bar-v3{position:relative;height:60px;background:#0f172a!important;padding:0 12px;display:flex!important;flex-direction:column!important;justify-content:center!important;gap:0;z-index:100;border-radius:0 0 var(--radius-xl) var(--radius-xl)}.bottom-controls-row{display:flex!important;justify-content:space-between!important;align-items:center!important;width:100%!important;margin-top:5px!important}.control-group-v3.center{width:100%;margin:0;position:absolute!important;top:-2px!important;left:0;right:0;padding:0 4px;order:none!important}.timeline-wrapper-v3{height:12px;padding:0}.timeline-slider-v3{height:4px;margin:0}.control-group-v3.left,.control-group-v3.right{display:flex!important;align-items:center!important;gap:8px!important;order:none!important}.control-btn-v3{font-size:1.3rem;padding:4px}.time-display-v3{font-size:.75rem;min-width:80px;color:#94a3b8;direction:ltr;text-align:left}.volume-wrapper-v3{display:none!important}.speed-menu-v3{bottom:60px;left:auto;right:0;transform:none;min-width:80px;background:#1e293b}}.custom-player-wrapper{position:relative;overflow:hidden;background:#000}.youtube-target{width:100%;height:100%;position:absolute;top:0;left:0;pointer-events:none}.custom-controls-overlay{position:absolute;inset:0 0 48px;z-index:20;display:flex;align-items:center;justify-content:center;cursor:pointer;background:#0006;opacity:0;transition:opacity .3s}.custom-controls-overlay.show,.custom-controls-overlay:hover{opacity:1}.center-play-btn{width:70px;height:70px;background:var(--primary-600);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-inverse);font-size:2rem;box-shadow:var(--shadow-glow);transition:transform .2s}.center-play-btn:hover{transform:scale(1.1);background:var(--primary-600)}.custom-control-bar{position:absolute;bottom:0;left:0;right:0;height:48px;background:#0f172ae6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:30;align-items:center;padding:0 1rem;gap:1rem;display:flex}.control-group{display:flex;align-items:center;gap:.8rem}.control-group.center{flex:1}.control-btn{background:none;border:none;color:#cbd5e1;cursor:pointer;font-size:1.2rem;display:flex;align-items:center;transition:color .2s;padding:.25rem}.control-btn:hover{color:#fff}.time-display{color:#e2e8f0;font-size:.8rem;font-family:monospace;font-weight:500;min-width:80px}.progress-slider-custom{-webkit-appearance:none;appearance:none;width:100%;height:4px;background:#fff3;border-radius:2px;outline:none;cursor:pointer;background-image:linear-gradient(to right,var(--primary-500) 0%,var(--primary-500) 100%);background-repeat:no-repeat}.progress-slider-custom::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;background:#fff;border-radius:50%;cursor:pointer;transition:transform .1s}.progress-slider-custom::-webkit-slider-thumb:hover{transform:scale(1.2)}.volume-control-group{position:relative;display:flex;align-items:center}.volume-slider-popup{position:absolute;bottom:40px;left:50%;transform:translate(-50%);background:#0f172ae6;padding:1rem .5rem;border-radius:.5rem;display:none;box-shadow:0 -5px 15px #0003;height:100px;width:32px}.volume-slider-popup.show{display:flex;justify-content:center}.volume-slider{writing-mode:vertical-lr;direction:ltr;width:4px;height:80px;background:#475569;cursor:pointer}.animate-ping{width:1.5rem;height:1.5rem;background:#fff;border-radius:50%;opacity:.8}.premium-video-card-v3{position:relative;user-select:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none}.video-watermark-v3{position:absolute;z-index:1000;pointer-events:none;-webkit-user-select:none;user-select:none;opacity:.15;color:#fff;font-size:.85rem;font-weight:600;display:flex;flex-direction:column;gap:2px;background:#0003;padding:6px 12px;border-radius:8px;white-space:nowrap;transition:all 1.5s ease-in-out;text-shadow:1px 1px 2px rgba(0,0,0,.8);pointer-events:none!important}.video-watermark-v3 span{display:block}.video-content-section{-webkit-user-select:none!important;user-select:none!important}.quiz-start-card-v2{background:#fff;border-radius:1rem;border:1px solid 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10px}.volume-slider-horizontal-v3{-webkit-appearance:none;appearance:none;width:100%;height:4px;background:#fff3;background-image:linear-gradient(var(--primary-500),var(--primary-500));background-repeat:no-repeat;background-size:var(--volume-level) 100%;background-position:left;direction:ltr;border-radius:2px;outline:none;cursor:pointer}.volume-slider-horizontal-v3::-webkit-slider-runnable-track{background:transparent;height:100%}.volume-slider-horizontal-v3::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;background:#fff;border-radius:50%;margin-top:-4px;box-shadow:0 0 5px #00000080;border:none}.speed-control-v3{position:relative}.speed-menu-v3{position:absolute;bottom:calc(100% + 15px);left:50%;transform:translate(-50%);background:#000000e6;border-radius:var(--radius-lg);padding:var(--space-2);display:flex;flex-direction:column;min-width:80px;z-index:40}.speed-option-v3{background:none;border:none;color:#fff;padding:var(--space-2) 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h3{font-size:1.75rem;font-weight:800;margin-bottom:.75rem;color:#fff}.views-limit-reached-card p{font-size:1.1rem;color:#cbd5e1;max-width:400px}.files-list-v2{display:flex;flex-direction:column;gap:1rem}.file-item-v2{display:flex;align-items:center;gap:1rem;padding:1rem;background-color:var(--bg-secondary);border-radius:var(--radius-lg);text-decoration:none;color:var(--text-primary);transition:all .2s;border:1px solid var(--border-color)}.file-item-v2:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--primary-300)}.file-icon-wrapper{width:48px;height:48px;flex-shrink:0;background-color:var(--primary-100);color:var(--primary-600);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:1.5rem}.file-info{flex-grow:1}.file-name{font-weight:700;display:block;margin-bottom:.25rem}.file-type{font-size:.85rem;color:var(--text-secondary)}.file-action-icon{font-size:1.2rem;color:#6b7280;transition:color .2s ease-in-out}.file-item-v2.downloading{cursor:not-allowed;opacity:.7}.spinner-sm-file{width:20px;height:20px;border:2px solid rgba(0,0,0,.1);border-left-color:#4f46e5;border-radius:50%;animation:spin 1s linear infinite;margin-left:auto}.file-item-v2:hover .file-action-icon{color:var(--primary-600)}.no-attempts-left-msg{background-color:var(--danger-50);color:var(--danger-700);padding:1rem;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;gap:.75rem;font-weight:600;width:100%}.no-attempts-left-msg svg{font-size:1.2rem}#player-container-fullscreen:fullscreen{width:100vw;height:100vh;padding-top:0!important;border-radius:0;display:flex;flex-direction:column;background:#000}#player-container-fullscreen:-webkit-full-screen{width:100vw;height:100vh;padding-top:0!important;border-radius:0;display:flex;flex-direction:column;background:#000}#player-container-fullscreen:fullscreen 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var(--space-16)}.results-grid{display:flex;flex-direction:column;gap:1.5rem}.quiz-result-card{background:var(--bg-primary);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);transition:box-shadow .2s}.quiz-result-card:hover{box-shadow:var(--shadow-lg)}.card-header{padding:1.5rem;display:flex;justify-content:space-between;align-items:center;cursor:pointer}.quiz-info{display:flex;align-items:center;gap:1rem}.quiz-info svg{font-size:1.5rem;color:var(--primary-500)}.quiz-info h4{margin:0;font-size:1.2rem;font-weight:700}.quiz-info span{color:var(--text-secondary);font-size:.9rem}.summary-info{display:flex;align-items:center;gap:1.5rem;color:var(--text-secondary)}.best-score,.attempts-count{font-weight:600}.chevron-icon{font-size:1.5rem;transition:transform .3s}.chevron-icon.expanded{transform:rotate(180deg)}.attempts-table-wrapper{padding:0 1.5rem 1.5rem;border-top:1px solid var(--border-color)}.attempts-table{width:100%;border-collapse:collapse}.attempts-table th,.attempts-table td{padding:1rem;text-align:start;border-bottom:1px solid var(--gray-100)}.attempts-table th{font-weight:600;color:var(--text-secondary);font-size:.9rem}.attempts-table tr:last-child td{border-bottom:none}.status-badge{display:inline-flex;align-items:center;gap:.25rem;padding:.25rem .75rem;border-radius:var(--radius-full);font-size:.8rem;font-weight:600}.status-badge.pass{background:var(--success-100);color:var(--success-700)}.status-badge.fail{background:var(--danger-100);color:var(--danger-700)}.btn-view-result{background:var(--primary-100);color:var(--primary-700);padding:.5rem 1rem;border-radius:var(--radius-md);text-decoration:none;display:inline-flex;align-items:center;gap:.5rem;font-weight:600;transition:background .2s}.btn-view-result:hover{background:var(--primary-200)}.empty-icon{font-size:var(--text-4xl);color:var(--text-muted);margin-bottom:var(--space-4)}@media(max-width:992px){.card-header{flex-direction:column;align-items:flex-start;gap:1.5rem}.summary-info{width:100%;justify-content:space-between}}@media(max-width:768px){.exam-results-page{padding:var(--space-4) 0 var(--space-8)}.quiz-info h4{font-size:1.1rem}.best-score,.attempts-count{font-size:.85rem}.summary-info{gap:.75rem;flex-wrap:wrap}.attempts-table thead{display:none}.attempts-table,.attempts-table tbody,.attempts-table tr,.attempts-table td{display:block;width:100%}.attempts-table tr{margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--gray-100)}.attempts-table tr:last-child{border-bottom:none;padding-bottom:0}.attempts-table td{padding:.5rem 0;border:none;display:flex;justify-content:space-between;align-items:center;text-align:left}.attempts-table td:before{content:attr(data-label);font-weight:600;color:var(--text-secondary);font-size:.85rem}.btn-view-result{width:100%;justify-content:center;margin-top:.5rem}}.courses-page{padding-bottom:var(--space-16)}.filters-section{background:#fff;padding:var(--space-6);border-radius:var(--radius-2xl);box-shadow:var(--shadow-lg);display:flex;gap:var(--space-4);margin-bottom:var(--space-8);align-items:center}.search-box{flex:1;position:relative}.search-icon{position:absolute;right:var(--space-4);top:50%;transform:translateY(-50%);color:var(--text-muted)}.search-input{padding-right:var(--space-10);width:100%}.filter-select{min-width:200px}.results-count{font-size:var(--text-lg);font-weight:var(--font-semibold);margin-bottom:var(--space-6);color:var(--text-secondary)}.courses-grid{display:grid;grid-template-columns:1fr;gap:var(--space-8)}@media(min-width:768px){.courses-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.courses-grid{grid-template-columns:repeat(3,1fr)}}.empty-state{text-align:center;padding:var(--space-16);background:#fff;border-radius:var(--radius-2xl);box-shadow:var(--shadow-sm)}@media(max-width:640px){.filters-section{flex-direction:column}.filter-select{width:100%}}.profile-page-printed{padding:2rem 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var(--border-color-light)}.profile-actions{margin-top:2rem;text-align:center}.change-pass-btn{display:inline-flex;align-items:center;gap:.5rem}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:#fff;border-radius:1rem;width:100%;max-width:500px;box-shadow:var(--shadow-xl);animation:slideUp .3s ease-out}.modal-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.modal-header h2{font-size:1.25rem;margin:0}.close-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-muted)}.modal-body{padding:1.5rem}.modal-footer{padding:1.25rem 1.5rem;border-top:1px solid var(--border-color);display:flex;justify-content:flex-end;gap:1rem}@media(max-width:768px){.profile-card{padding:1.5rem}.profile-main-header h1{font-size:1.5rem}.info-grid{grid-template-columns:1fr;gap:1.5rem}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.quiz-main-area{background-color:var(--bg-primary);border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);overflow:hidden}.quiz-header-v3{background:var(--gradient-dark);color:var(--text-inverse);padding:var(--space-6) var(--space-8);position:relative}.quiz-header-top-row{display:flex;justify-content:space-between;align-items:center}.quiz-title-v3{font-size:1.5rem;font-weight:800;margin:0}.quiz-timer-v3{background:#ffffff1a;padding:.5rem 1.25rem;border-radius:var(--radius-full);font-size:1.1rem;font-weight:700;display:flex;align-items:center;gap:.5rem;font-family:var(--font-mono)}.quiz-progress-bar-v3{position:absolute;bottom:0;left:0;right:0;height:6px;background:#ffffff1a}.quiz-progress-fill-v3{height:100%;background:var(--success-500);transition:width .3s}.quiz-body-v3{padding:var(--space-8) var(--space-10)}.question-header-v3{color:var(--text-secondary);font-weight:600;margin-bottom:1rem}.question-text-v3{font-size:1.5rem;font-weight:700;margin-bottom:2rem;line-height:1.6}.question-image-v3{max-width:100%;max-height:400px;border-radius:var(--radius-lg);margin-bottom:2rem}.options-grid-v3{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}.option-card-v3{background:var(--bg-secondary);border:2px solid var(--border-color);border-radius:var(--radius-lg);padding:1.5rem;display:flex;align-items:center;gap:1rem;cursor:pointer;transition:all .2s}.option-card-v3:hover{border-color:var(--primary-300);background:var(--primary-50)}.option-card-v3.selected{border-color:var(--primary-600);background:var(--primary-100);box-shadow:0 0 0 3px var(--primary-200)}.option-letter-v3{width:40px;height:40px;flex-shrink:0;border:2px solid var(--border-color);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;transition:all .2s}.option-card-v3.selected .option-letter-v3{background:var(--primary-600);color:var(--text-inverse);border-color:var(--primary-600)}.option-text-v3{font-weight:600;font-size:1.1rem}.quiz-footer-v3{padding:var(--space-6) var(--space-10);border-top:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center}.questions-nav-pills{display:flex;gap:.5rem;flex-wrap:wrap;justify-content:center;row-gap:.75rem}.nav-pill{width:32px;height:32px;border-radius:50%;background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);font-weight:600;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.nav-pill.active{background:var(--primary-600);color:var(--text-inverse);border-color:var(--primary-600)}.nav-pill.answered{background:var(--gray-300);border-color:var(--gray-400)}.btn-quiz-action{padding:.75rem 2rem;font-weight:700;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all .2s}.btn-quiz-action.primary{background:var(--gradient-primary);color:#fff}.btn-quiz-action.secondary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color)}.quiz-result-container-v2{background-color:#f8f9fa;padding:2rem;border-radius:1.5rem;direction:rtl}.result-header-v2{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.performance-indicator{text-align:center}.performance-icon{width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;margin:0 auto .5rem}.performance-icon.pass{background-color:#28a745}.performance-icon.fail{background-color:#dc3545}.performance-indicator span{font-weight:700;color:#dc3545}.performance-indicator .pass+span{color:#28a745}.result-title-section{text-align:center}.result-title-section h3{margin:0;font-size:1.5rem}.result-title-section p{margin:0;color:#6c757d}.btn-review-v2{width:50px;height:50px;border-radius:50%;background-color:#dc3545;color:#fff;border:none;font-size:1.5rem;display:flex;align-items:center;justify-content:center;cursor:pointer}.main-score-card{background:#fff;border-radius:1rem;padding:1.5rem;text-align:center;margin-bottom:2rem;box-shadow:0 4px 15px #0000000d}.main-score-card h4{margin:0 0 1rem;color:#6c757d}.score-display{background-color:#dc3545;color:#fff;padding:.5rem 1.5rem;border-radius:999px;display:inline-block;font-size:1.2rem;font-weight:700;margin-bottom:1rem}.progress-bar-container{background-color:#e9ecef;border-radius:999px;height:10px;overflow:hidden;margin-bottom:.5rem}.progress-bar-fill{background-color:#dc3545;height:100%}.percentage-text{font-weight:700}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-bottom:2rem}.stat-card{background:#fff;border-radius:1rem;padding:1.5rem;text-align:center;box-shadow:0 4px 15px #0000000d}.stat-card svg{font-size:2rem;margin-bottom:.5rem}.stat-card.correct svg{color:#28a745}.stat-card.incorrect svg{color:#dc3545}.stat-card.unanswered svg{color:#ffc107}.stat-value{display:block;font-size:1.5rem;font-weight:700}.stat-label{color:#6c757d}.result-actions-v2{display:flex;justify-content:center;gap:1rem}@media(max-width:768px){.options-grid-v3{grid-template-columns:1fr}.quiz-body-v3{padding:var(--space-6)}.quiz-footer-v3{flex-direction:column;gap:1rem}.quiz-result-container-v2{padding:1.25rem}.result-header-v2{flex-direction:column;gap:1.5rem;text-align:center}.stats-grid{grid-template-columns:1fr!important;gap:1rem}.stat-card{padding:1rem}.stat-card 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var(--gray-100)}.students-table th{background:var(--gray-50);font-weight:var(--font-semibold);color:var(--text-secondary);font-size:var(--text-sm)}.students-table tr:hover td{background:var(--gray-50)}.student-cell{display:flex;align-items:center;gap:var(--space-3)}.student-avatar{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--primary-100);color:var(--primary-600);border-radius:var(--radius-full)}.student-cell strong{display:block;font-weight:var(--font-semibold)}.student-cell p{font-size:var(--text-sm);color:var(--text-muted)}.date-cell,.phone-cell{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-sm);color:var(--text-secondary)}.student-info-summary{padding:1rem 2rem 0;background-color:#f8fafc;display:flex;gap:1rem}.info-badge{background:#e2e8f0;color:#475569;padding:.4rem 1rem;border-radius:20px;font-size:.85rem;font-weight:600;display:flex;align-items:center;gap:.5rem}.progress-cell{display:flex;align-items:center;gap:var(--space-3)}.progress-cell .progress{flex:1;max-width:100px}.progress-cell span{font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--primary-600)}.details-row td{padding:0;border-top:none}.student-progress-details{background-color:#f8fafc;padding:1.5rem 2rem;animation:fadeIn .3s ease-out}.student-progress-details p{color:#64748b;font-weight:500}.student-progress-details ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:1rem}.student-progress-details li{display:flex;justify-content:space-between;align-items:center;padding:1rem;background-color:#fff;border-radius:.5rem;border:1px solid #e2e8f0;font-weight:600;transition:all .2s ease-in-out}.student-progress-details li:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000000d}.lesson-title-details{display:flex;align-items:center;gap:.75rem;color:#334155}.progress-value{font-weight:700;font-family:monospace;font-size:1rem;padding:.25rem .75rem;border-radius:.25rem}.progress-value.quiz{background-color:#cffafe;color:#0891b2}.progress-value.video{background-color:#ede9fe;color:#7c3aed}@media(max-width:768px){.course-students-page{padding:var(--space-4) 0 var(--space-8)}.container{padding:0 var(--space-4)}.page-header-with-back{padding:0 var(--space-1);margin-bottom:var(--space-6)}.page-header-with-back h1{font-size:var(--text-lg)}.students-table-wrapper{background:transparent;box-shadow:none;overflow:visible;width:100%}.students-table thead{display:none}.students-table tr{display:block;margin-bottom:var(--space-6);border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--gray-200);background:var(--bg-primary);box-shadow:var(--shadow-sm);width:100%}.students-table tr.details-row{margin-top:calc(-1 * var(--space-6));border-top:1px dashed var(--gray-200);border-radius:0 0 var(--radius-xl) var(--radius-xl);box-shadow:none;background:var(--bg-secondary)}.students-table td{display:flex;flex-direction:column;align-items:stretch;gap:var(--space-1);border-bottom:1px solid var(--gray-50);padding:var(--space-4) var(--space-5);width:100%;box-sizing:border-box}.students-table td:before{content:attr(data-label);font-weight:var(--font-semibold);color:var(--text-muted);font-size:var(--text-xs);text-align:start;display:block}.student-cell,.date-cell,.progress-cell,.students-table td>span{display:flex;align-items:center;width:100%;min-width:0;text-align:start;justify-content:flex-start;font-size:var(--text-sm);color:var(--text-primary);font-weight:var(--font-medium);padding-top:var(--space-1)}.students-table td:last-child{justify-content:center;padding:var(--space-6) var(--space-5);border-bottom:none}.students-table td:last-child:before{display:none}.student-cell{gap:var(--space-3);flex-direction:row;text-align:start}.student-avatar{width:40px;height:40px;flex-shrink:0;border-radius:var(--radius-full);background:var(--primary-50);color:var(--primary-700)}.student-cell>div{overflow:hidden;min-width:0;flex:1}.student-cell strong{color:var(--text-primary);display:block;font-size:var(--text-base);margin-bottom:var(--space-1);white-space:normal}.student-cell p{color:var(--text-muted);font-size:var(--text-xs);word-break:break-all}.progress-cell{gap:var(--space-4);flex-direction:row}.progress-cell .progress{flex:1;height:8px;background:var(--gray-100)}.progress-cell span{font-weight:var(--font-bold);min-width:45px}.details-btn{width:100%;height:48px;background:var(--bg-dark);color:#fff;border-radius:var(--radius-lg);font-weight:var(--font-bold);display:flex;align-items:center;justify-content:center;gap:var(--space-3);font-size:var(--text-base)}.details-btn:after{content:"تحميل التفاصيل والدرجات"}.details-btn.expanded{background:var(--primary-600)}.details-btn svg{font-size:1.25rem;transition:transform .3s}.details-btn.expanded svg{transform:rotate(180deg)}.student-progress-details{padding:var(--space-5) var(--space-4)}.student-progress-details ul{gap:var(--space-3)}.student-progress-details li{background:#fff;border:1px solid var(--gray-100);padding:var(--space-4);border-radius:var(--radius-lg);display:flex;flex-direction:column;gap:var(--space-3);align-items:stretch}.lesson-title-details{font-size:var(--text-sm);font-weight:var(--font-semibold)}.progress-value{align-self:flex-start;padding:var(--space-1) var(--space-4);background:var(--primary-50);color:var(--primary-700);border-radius:var(--radius-full);font-size:var(--text-xs);font-weight:var(--font-bold);text-align:center}}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.lesson-editor-page{padding:var(--space-8) 0 var(--space-16)}.lesson-editor-page .editor-card{background:var(--bg-primary);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-md);max-width:800px;margin:0 auto}.lesson-editor-page .form-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media(min-width:640px){.lesson-editor-page .form-grid{grid-template-columns:repeat(2,1fr)}}.lesson-editor-page .form-actions{display:flex;justify-content:flex-end;gap:var(--space-4);margin-top:var(--space-8);padding-top:var(--space-6);border-top:1px solid var(--gray-100)}.lesson-editor-page .thumbnail-upload{margin-top:var(--space-2)}.lesson-editor-page .thumbnail-preview-lesson{position:relative;width:100%;max-width:320px;aspect-ratio:16 / 9;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--gray-200)}.lesson-editor-page .thumbnail-preview-lesson img{width:100%;height:100%;object-fit:cover}.lesson-editor-page .remove-thumb{position:absolute;top:var(--space-2);right:var(--space-2);width:32px;height:32px;border-radius:var(--radius-full);background:#ef4444e6;color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-base)}.lesson-editor-page .remove-thumb:hover{background:var(--error-600);transform:scale(1.1)}.lesson-editor-page .upload-placeholder{width:100%;max-width:320px;aspect-ratio:16 / 9;border:2px dashed var(--gray-300);border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);color:var(--text-muted);cursor:pointer;transition:all var(--transition-base);background:var(--gray-50)}.lesson-editor-page .upload-placeholder:hover{border-color:var(--primary-500);color:var(--primary-600);background:var(--primary-50)}.lesson-editor-page .upload-placeholder svg{font-size:var(--text-4xl)}.files-upload-section{border:2px dashed var(--border-color);border-radius:var(--radius-lg);padding:var(--space-4)}.upload-placeholder-files{background-color:var(--bg-secondary);padding:var(--space-8);text-align:center;border-radius:var(--radius-md);cursor:pointer;color:var(--text-secondary);transition:background-color .2s}.upload-placeholder-files:hover{background-color:var(--gray-200)}.upload-placeholder-files svg{font-size:2rem;margin-bottom:var(--space-2)}.files-list{display:flex;flex-direction:column;gap:var(--space-3);margin-bottom:var(--space-4)}.file-item{display:flex;align-items:center;gap:var(--space-3);background-color:var(--bg-secondary);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-weight:500}.file-item svg{color:var(--primary-600)}.remove-file-btn{margin-right:auto;background:none;border:none;cursor:pointer;color:var(--danger-500);font-size:1.2rem}.question-editor-page{padding:var(--space-8) 0 var(--space-16)}.question-editor-page .editor-card{background:var(--bg-primary);border-radius:var(--radius-xl);padding:var(--space-8);box-shadow:var(--shadow-md);max-width:900px;margin:0 auto}.question-editor-page .options-input-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media(min-width:768px){.question-editor-page .options-input-grid{grid-template-columns:repeat(2,1fr)}}.question-editor-page .form-grid{display:grid;grid-template-columns:1fr;gap:var(--space-4)}@media(min-width:640px){.question-editor-page .form-grid{grid-template-columns:repeat(3,1fr)}}.question-editor-page .form-actions{display:flex;justify-content:flex-end;gap:var(--space-4);margin-top:var(--space-8);padding-top:var(--space-6);border-top:1px solid var(--gray-100)}.question-editor-page .thumbnail-upload{margin-top:var(--space-2)}.question-editor-page .thumbnail-preview-lesson{position:relative;width:100%;max-width:400px;aspect-ratio:16 / 9;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--gray-200)}.question-editor-page .thumbnail-preview-lesson img{width:100%;height:100%;object-fit:contain;background:#f8fafc}.question-editor-page .remove-thumb{position:absolute;top:var(--space-2);right:var(--space-2);width:32px;height:32px;border-radius:var(--radius-full);background:#ef4444e6;color:#fff;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-base)}.question-editor-page .upload-placeholder{width:100%;max-width:400px;aspect-ratio:16 / 9;border:2px dashed var(--gray-300);border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-3);color:var(--text-muted);cursor:pointer;transition:all var(--transition-base);background:var(--gray-50)}.question-editor-page .upload-placeholder:hover{border-color:var(--primary-500);color:var(--primary-600);background:var(--primary-50)}.teacher-quiz-editor{padding:var(--space-8) 0 var(--space-16)}.editor-actions{margin-bottom:var(--space-8)}.questions-list{display:flex;flex-direction:column;gap:var(--space-6)}.question-card-admin{background:var(--bg-primary);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);overflow:hidden;padding:var(--space-6)}.question-header{display:flex;align-items:center;gap:var(--space-4);margin-bottom:var(--space-4);padding-bottom:var(--space-4);border-bottom:1px solid var(--gray-100)}.question-number{font-weight:var(--font-bold);color:var(--primary-600);font-size:var(--text-lg)}.question-meta{flex:1}.question-actions{display:flex;gap:var(--space-2)}.question-text{font-size:var(--text-lg);font-weight:var(--font-medium);margin-bottom:var(--space-4)}.question-image-preview{max-width:400px;margin-bottom:var(--space-4);border-radius:var(--radius-lg);overflow:hidden}.options-grid{display:grid;grid-template-columns:1fr;gap:var(--space-3)}@media(min-width:768px){.options-grid{grid-template-columns:1fr 1fr}}.option-item{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-4);background:var(--gray-50);border-radius:var(--radius-lg);border:1px solid var(--gray-200)}.option-item.correct{background:var(--success-50);border-color:var(--success-200);color:var(--success-700);font-weight:var(--font-bold)}.correct-icon{font-size:var(--text-lg)}.quiz-modal{max-width:700px}.options-input-grid{display:grid;grid-template-columns:1fr;gap:var(--space-2);margin-bottom:var(--space-4)}@media(min-width:640px){.options-input-grid{grid-template-columns:1fr 1fr}}.teacher-quiz-editor .form-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-4)}@media(max-width:768px){.question-header{flex-direction:column;align-items:flex-start;gap:var(--space-3)}.question-actions{width:100%;justify-content:flex-end}.question-text{font-size:var(--text-base)}.question-image-preview{max-width:100%}}.teacher-profile-page{min-height:calc(100vh - 80px);display:flex;align-items:center;justify-content:center;padding:2rem 1rem;background:#f8fafc}.teacher-profile-container{width:100%;max-width:600px}.teacher-profile-card{background:#fff;border-radius:20px;padding:3rem 2.5rem;box-shadow:0 20px 60px #00000014;border:1px solid #e2e8f0}.teacher-profile-header{text-align:center;margin-bottom:2.5rem}.profile-image-wrapper{position:relative;width:120px;height:120px;margin:0 auto 1.5rem}.profile-image-lg{width:100%;height:100%;border-radius:50%;object-fit:cover;border:4px solid #f1f5f9;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:3rem;font-weight:700}.change-image-btn{position:absolute;bottom:0;right:0;width:36px;height:36px;border-radius:50%;background:#2563eb;color:#fff;border:3px solid #ffffff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.change-image-btn:hover{transform:scale(1.1);background:#1d4ed8}.teacher-profile-header h1{font-size:1.8rem;font-weight:700;color:#1e293b;margin-bottom:.25rem}.teacher-profile-header p{color:#64748b;font-size:.95rem}.teacher-profile-fields{display:flex;flex-direction:column;gap:1.25rem}.profile-field{display:flex;align-items:center;gap:1rem;padding:1.25rem;background:#f8fafc;border-radius:12px;border:1px solid #e2e8f0}.field-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:rgba(var(--primary-rgb),.1);color:var(--primary);border-radius:10px;font-size:1.2rem;flex-shrink:0}.field-content{flex:1}.field-label{display:block;font-size:.8rem;color:#64748b;margin-bottom:.15rem;font-weight:500}.field-value{display:block;font-size:1rem;color:#1e293b;font-weight:600}.profile-actions{margin-top:2.5rem;display:flex;flex-direction:column;gap:1rem}.modal-content{background:#fff;border-radius:20px;width:100%;max-width:450px;padding:2rem;box-shadow:0 25px 80px #0003}.modal-content h3{margin-bottom:1.5rem;text-align:center;font-size:1.25rem;color:#1e293b}.modal-actions{display:flex;gap:1rem;margin-top:2rem}.modal-actions .btn{flex:1}@media(max-width:640px){.teacher-profile-card{padding:2rem 1.5rem}}.admin-dashboard{padding:2rem 1rem;min-height:calc(100vh - 80px)}.dashboard-header{margin-bottom:2rem}.dashboard-header h1{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin-bottom:.25rem}.dashboard-header p{color:var(--text-secondary);font-size:.95rem}.admin-stats-grid{display:grid;gap:1.5rem}@media(max-width:480px){.admin-stats-grid{grid-template-columns:1fr}}@media(min-width:481px)and (max-width:767px){.admin-stats-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:768px){.admin-stats-grid{grid-template-columns:repeat(3,1fr)}}@media(min-width:1024px){.admin-stats-grid{grid-template-columns:repeat(6,1fr)}}.admin-stat-card{background:#fff;border-radius:16px;padding:1.25rem;box-shadow:0 4px 15px #0000000d;text-align:center;border:1px solid #e5e7eb;transition:all .3s ease}.admin-stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px #0000001a}.admin-stat-card .stat-icon{width:50px;height:50px;display:flex;align-items:center;justify-content:center;border-radius:12px;font-size:1.5rem;margin:0 auto .75rem}.stat-card-primary .stat-icon{background:rgba(var(--primary-rgb),.1);color:var(--primary)}.stat-card-secondary .stat-icon{background:#8b5cf61a;color:#8b5cf6}.stat-card-accent .stat-icon{background:#ec48991a;color:#ec4899}.stat-card-success .stat-icon{background:#10b9811a;color:#10b981}.stat-card-warning .stat-icon{background:#f59e0b1a;color:#f59e0b}.admin-stat-card .stat-value{font-size:1.75rem;font-weight:700;display:block;margin-bottom:.25rem;color:var(--text-primary)}.admin-stat-card .stat-label{font-size:.8rem;color:var(--text-secondary)}.admin-quick-actions h2{font-size:1.25rem;font-weight:700;margin-bottom:1.5rem;color:var(--text-primary)}.quick-actions-grid{display:grid;grid-template-columns:1fr;gap:1rem}@media(min-width:640px){.quick-actions-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.quick-actions-grid{grid-template-columns:repeat(4,1fr)}}.quick-action-card{background:#fff;border-radius:16px;padding:1.5rem;text-decoration:none;color:#111827;box-shadow:0 4px 15px #0000000d;transition:all .3s ease;border:2px solid transparent;display:flex;flex-direction:column;align-items:center;text-align:center}.quick-action-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px #0000001a;border-color:var(--primary)}.quick-action-card .action-icon{font-size:2.5rem;color:var(--primary);margin-bottom:1rem}.quick-action-card h3{font-size:1rem;font-weight:700;margin-bottom:.5rem}.quick-action-card p{font-size:.85rem;color:var(--text-secondary)}.teachers-admin-page{padding:2rem 1rem;min-height:calc(100vh - 80px)}.teachers-table-wrapper{background:#fff;border-radius:16px;overflow:hidden;border:1px solid #e5e7eb;box-shadow:0 4px 20px #00000014}.teachers-table{width:100%;border-collapse:collapse}.teachers-table th{background:#f9fafb;padding:1rem 1.25rem;text-align:right;font-weight:600;color:#4b5563;font-size:.85rem;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid #e5e7eb}.teachers-table td{padding:1rem 1.25rem;border-bottom:1px solid #e5e7eb;vertical-align:middle;color:#1f2937}.teachers-table tr:last-child td{border-bottom:none}.teachers-table tr:hover{background:var(--bg-secondary)}.teacher-cell{display:flex;align-items:center;gap:1rem}.teacher-avatar-sm{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem;flex-shrink:0}.teacher-name{font-weight:600;color:var(--text-primary)}.teacher-email{font-size:.85rem;color:var(--text-secondary)}.subject-badge{display:inline-block;background:rgba(var(--primary-rgb),.1);color:var(--primary);padding:.35rem .85rem;border-radius:50px;font-size:.85rem;font-weight:500}.count-badge{display:inline-flex;align-items:center;justify-content:center;background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-primary);min-width:32px;height:32px;border-radius:8px;font-weight:600;font-size:.9rem}.action-buttons{display:flex;gap:.5rem}.action-btn{width:36px;height:36px;border:none;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.action-btn.edit{background:rgba(var(--primary-rgb),.1);color:var(--primary)}.action-btn.edit:hover{background:var(--primary);color:#fff}.action-btn.delete{background:#ef44441a;color:var(--danger)}.action-btn.delete:hover{background:var(--danger);color:#fff}.teachers-cards{display:flex;flex-direction:column;gap:1rem}.teacher-card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;overflow:hidden;box-shadow:0 4px 15px #0000000d}.teacher-card-header{display:flex;align-items:center;gap:1rem;padding:1.25rem;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}.teacher-avatar-lg{width:50px;height:50px;border-radius:50%;background:#fff3;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.25rem}.teacher-info h3{font-size:1.1rem;margin-bottom:.25rem}.teacher-info p{font-size:.85rem;opacity:.9}.teacher-card-body{padding:1.25rem;display:flex;flex-direction:column;gap:1rem}.teacher-stats{display:flex;gap:1.5rem;color:var(--text-secondary);font-size:.9rem}.teacher-stats span{display:flex;align-items:center;gap:.5rem}.teacher-card-actions{display:flex;gap:.5rem;padding:0 1.25rem 1.25rem}.teacher-card-actions .btn{flex:1}.modal-content{background:#fff;border-radius:20px;width:100%;max-width:550px;max-height:90vh;overflow-y:auto;box-shadow:0 25px 80px #0000004d}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 2rem;border-bottom:1px solid #e5e7eb;background:#fff}.modal-header h3{font-size:1.25rem;font-weight:700;color:#1f2937}.modal-body{padding:2rem;background:#fff}.modal-body .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.form-group{margin-top:1rem}.form-group.full-width{grid-column:1 / -1}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-secondary);font-size:.9rem}.form-group textarea{width:100%;padding:1rem;border:2px solid #e5e7eb;border-radius:12px;font-family:inherit;font-size:1rem;resize:vertical;background:#f9fafb;color:#1f2937;transition:border-color .2s ease}.form-group textarea:focus{outline:none;border-color:var(--primary);background:#fff}.modal-footer{display:flex;gap:1rem;padding:1.5rem 2rem;border-top:1px solid #e5e7eb;background:#f9fafb}.modal-footer .btn{flex:1}@media(max-width:768px){.desktop-only{display:none}.mobile-only{display:flex}.page-header-with-action{flex-direction:column;align-items:flex-start}.page-header-with-action .btn{width:100%}.modal-body .form-grid{grid-template-columns:1fr}}.student-activation-page{padding:2rem 1rem;min-height:calc(100vh - 80px)}.students-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.student-activation-card{background:#fff;border:1px solid #e5e7eb;border-radius:20px;overflow:hidden;transition:all .3s ease;box-shadow:0 4px 20px #0000000d}.student-activation-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px #0000001a;border-color:var(--primary)}.student-card-header{display:flex;align-items:center;gap:1rem;padding:1.5rem;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}.student-avatar{width:50px;height:50px;border-radius:50%;background:#fff3;display:flex;align-items:center;justify-content:center;font-size:1.5rem}.student-main-info h3{font-size:1.15rem;font-weight:700;margin-bottom:.35rem}.student-code-badge{display:inline-block;background:#0003;color:#fff;padding:.25rem .75rem;border-radius:50px;font-size:.8rem;font-weight:600;letter-spacing:.5px}.student-card-body{padding:1.5rem;display:flex;flex-direction:column;gap:.75rem}.info-row span{word-break:break-word}.info-row.parent-phone{background:rgba(var(--primary-rgb),.1);padding:.5rem .75rem;border-radius:8px;color:var(--primary);font-weight:500}.badge{display:inline-block;padding:.35rem .85rem;border-radius:50px;font-size:.8rem;font-weight:500;background:#f9fafb;color:#4b5563;border:1px solid #e5e7eb}.student-card-actions{padding:0 1.5rem 1.5rem}.empty-state-card.success{border-color:var(--success);background:#10b9810d}.empty-state-card.success .empty-icon{color:var(--success)}@media(max-width:640px){.students-grid{grid-template-columns:1fr}.student-card-header,.student-card-body{padding:1.25rem}}.active-students-page{padding:2rem 1rem;min-height:calc(100vh - 80px)}.page-container{max-width:1200px;margin:0 auto}.page-header-with-action{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-8)}.page-header-with-action h1{font-size:var(--text-3xl);font-weight:var(--font-bold);margin-bottom:var(--space-1)}.page-header-with-action p{color:var(--text-muted)}.search-section{margin-bottom:2rem;max-width:400px}.students-table-wrapper{background:#fff;border-radius:16px;overflow:hidden;border:1px solid #e5e7eb;box-shadow:0 4px 20px #00000014}.students-table{width:100%;border-collapse:collapse}.students-table th{background:#f9fafb;padding:1rem 1.25rem;text-align:right;font-weight:600;color:#4b5563;font-size:.85rem;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid #e5e7eb}.students-table td{padding:1rem 1.25rem;border-bottom:1px solid #e5e7eb;vertical-align:middle;font-size:.9rem;color:#1f2937}.students-table tr:last-child td{border-bottom:none}.students-table tr:hover{background:#f9fafb}.student-cell{display:flex;align-items:center;gap:1rem}.student-avatar-sm{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem;flex-shrink:0}.student-name{font-weight:600;color:var(--text-primary)}.student-email{font-size:.85rem;color:var(--text-secondary)}.code-badge{display:inline-block;background:#f3f4f6;border:1px solid #e5e7eb;padding:.35rem .75rem;border-radius:8px;font-family:Courier New,monospace;font-size:.85rem;font-weight:600;letter-spacing:.5px;color:#111827}.stage-badges{display:flex;gap:.5rem;flex-wrap:wrap}.badge{display:inline-block;padding:.3rem .7rem;border-radius:50px;font-size:.75rem;font-weight:500;background:#f9fafb;color:#4b5563;border:1px solid #e5e7eb}.badge-primary{background:rgba(var(--primary-rgb),.1);color:var(--primary);border-color:transparent}.students-cards{display:flex;flex-direction:column;gap:1rem}.student-card{background:#fff;border:1px solid #e5e7eb;border-radius:16px;overflow:hidden;box-shadow:0 4px 15px #0000000d}.student-card-header{display:flex;align-items:center;gap:1rem;padding:1.25rem;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}.student-avatar-lg{width:50px;height:50px;border-radius:50%;background:#fff3;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.25rem}.student-info h3{font-size:1.1rem;margin-bottom:.35rem}.student-card-header .code-badge{background:#fff3;border:none;color:#fff}.student-card-body{padding:1.25rem;display:flex;flex-direction:column;gap:.75rem}.info-row{display:flex;align-items:center;gap:.75rem;color:var(--text-secondary);font-size:.9rem}.info-row .info-icon{color:var(--primary);flex-shrink:0}.info-row.highlight{background:rgba(var(--primary-rgb),.1);padding:.5rem .75rem;border-radius:8px;color:var(--primary);font-weight:500}.badges-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.5rem}.date-row{font-size:.85rem;margin-top:.5rem;padding-top:.75rem;border-top:1px solid var(--border-color)}.student-card-actions{padding:1rem;border-top:1px solid #e5e7eb;background:#f9fafb;display:flex;justify-content:flex-end}@media(max-width:1024px){.desktop-only{display:none}.mobile-only{display:flex}}.purchase-codes-page{padding:2rem 1rem;min-height:calc(100vh - 80px)}.page-container{max-width:900px;margin:0 auto}.page-header-with-action{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:2rem;flex-wrap:wrap}.page-header-with-action h1{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin-bottom:.25rem}.page-header-with-action p{color:var(--text-secondary);font-size:.9rem}.header-actions{display:flex;gap:.75rem}.generate-form-overlay{position:fixed;inset:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.generate-form{background:#fff;border-radius:20px;padding:2rem;width:100%;max-width:450px;box-shadow:0 25px 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h3{margin:0;font-size:.9rem;color:var(--text-secondary);margin-bottom:.5rem}.summary-value{font-size:1.8rem;font-weight:800;color:var(--text-primary)}.table-section{background-color:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.table-responsive{overflow-x:auto}.stats-table{width:100%;border-collapse:collapse}.stats-table th,.stats-table td{padding:1rem 1.5rem;text-align:right;border-bottom:1px solid var(--border-color)}.stats-table th{background-color:var(--bg-secondary);font-weight:700;color:var(--text-primary);white-space:nowrap}.stats-table tr:last-child td{border-bottom:none}.stats-table 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body{direction:ltr}a{color:inherit;text-decoration:none}img,video{max-width:100%;height:auto;display:block}button{font-family:inherit;font-size:inherit;cursor:pointer;background:none;border:none}input,textarea,select{font-family:inherit;font-size:inherit}*:focus{outline:none}*:focus-visible{outline:2px solid var(--primary-500);outline-offset:2px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--gray-100)}::-webkit-scrollbar-thumb{background:var(--gray-400);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--gray-500)}.loading-container{display:flex;align-items:center;justify-content:center;min-height:200px}.min-h-screen{min-height:100vh}.spinner-lg{width:50px;height:50px;border:4px solid var(--gray-200);border-top-color:var(--primary-600);border-radius:50%;animation:spin 1s linear infinite}@keyframes 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