.course-card{display:flex;flex-direction:column;overflow:hidden;height:100%}.card-media{position:relative;width:100%;height:180px;overflow:hidden}.card-img{width:100%;height:100%;object-fit:cover;transition:var(--transition-smooth)}.course-card:hover .card-img{transform:scale(1.08)}.card-media-overlay{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:center;pointer-events:none}.card-content{padding:20px;display:flex;flex-direction:column;flex-grow:1}.card-title{font-size:1.25rem;margin-bottom:8px;line-height:1.3}.card-description{color:var(--text-secondary);font-size:.9rem;margin-bottom:20px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis;flex-grow:1}.admin-card-stats{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:15px;border-top:1px solid 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.subtitle{color:var(--text-secondary);font-size:1.05rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.stat-card{padding:24px;gap:20px}.stat-card,.stat-icon-wrapper{display:flex;align-items:center}.stat-icon-wrapper{justify-content:center;width:54px;height:54px;border-radius:var(--radius-sm)}.stat-icon-wrapper.cyan{background:var(--glow-cyan);color:var(--primary-cyan);border:1px solid rgba(6,182,212,.2)}.stat-icon-wrapper.purple{background:var(--glow-purple);color:var(--primary-purple);border:1px solid rgba(139,92,246,.2)}.stat-icon-wrapper.pink{background:rgba(217,70,239,.1);color:var(--primary-pink);border:1px solid 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p{color:var(--text-secondary);max-width:440px;line-height:1.7}.admin-contact{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.03);padding:10px 20px;border-radius:var(--radius-sm);border:1px solid var(--border-glass);font-size:.9rem;color:var(--text-secondary);margin-top:10px}.course-viewer{display:grid;grid-template-columns:320px 1fr;gap:30px;align-items:start}.viewer-sidebar{display:flex;flex-direction:column;gap:25px;padding:24px;position:sticky;top:90px;max-height:calc(100vh - 120px);overflow-y:auto}.btn-back{background:transparent;border:none;color:var(--text-secondary);font-size:.88rem;font-weight:600;display:inline-flex;align-items:center;gap:8px;cursor:pointer;padding:8px 0;width:max-content;transition:var(--transition-fast)}.btn-back:hover{color:var(--primary-cyan)}.sidebar-course-details h2{font-size:1.3rem;font-weight:700;margin-top:8px;line-height:1.3}.syllabus-completion-bar{display:flex;flex-direction:column;gap:6px;margin-top:15px}.syllabus-completion-track{width:100%;height:4px;background:rgba(255,255,255,.08);border-radius:99px;overflow:hidden}.syllabus-completion-fill{height:100%;background:var(--primary-cyan);border-radius:99px;transition:width .3s ease}.syllabus-completion-label{font-size:.78rem;color:var(--text-secondary);font-weight:500}.syllabus-list{display:flex;flex-direction:column;gap:10px}.syllabus-title{font-size:.75rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border-glass);padding-bottom:5px}.no-lessons{font-size:.85rem;color:var(--text-muted);font-style:italic}.syllabus-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition-fast);background:rgba(255,255,255,.01);border:1px solid transparent}.syllabus-item:hover{background:rgba(255,255,255,.03);border-color:var(--border-glass)}.syllabus-item.active{background:var(--bg-glass-light);border-color:rgba(6,182,212,.2)}.btn-complete-check{background:transparent;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--transition-fast)}.btn-complete-check:hover{color:var(--primary-cyan)}.btn-complete-check.checked{color:var(--success)}.syllabus-item-meta{display:flex;flex-direction:column;flex-grow:1;overflow:hidden}.lesson-order-wrapper{display:flex;align-items:center;gap:6px}.lesson-assignment-indicator{display:inline-flex;align-items:center;color:var(--primary-cyan)}.lesson-order{font-size:.72rem;color:var(--text-secondary);font-weight:600;text-transform:uppercase}.lesson-name{font-size:.88rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.active-arrow,.syllabus-item.active .lesson-name{color:var(--primary-cyan)}.active-arrow{opacity:0;transform:translateX(-5px);transition:var(--transition-fast)}.syllabus-item.active .active-arrow{opacity:1;transform:translateX(0)}.exam-trigger-section{border-top:1px solid var(--border-glass);padding-top:20px;display:flex;flex-direction:column;gap:10px}.btn-exam-launch{width:100%}.exam-hint{display:flex;align-items:center;gap:6px;color:var(--text-muted);font-size:.75rem}.exam-status-box{display:flex;gap:12px;padding:12px 16px;border-radius:var(--radius-sm);font-size:.82rem}.exam-status-box.success{background:var(--success-glow);color:var(--success);border:1px solid rgba(16,185,129,.3)}.exam-status-box h4{font-weight:700;margin-bottom:2px}.exam-status-box p{color:var(--text-secondary)}.viewer-content{min-width:0;max-width:1000px;width:100%}.lesson-details,.viewer-content{display:flex;flex-direction:column}.lesson-details{overflow:hidden}.video-player-container{width:100%;aspect-ratio:16/9;background:#000000;border-bottom:1px solid var(--border-glass)}.lesson-video{width:100%;height:100%;display:block}.lesson-body-section{padding:30px}.lesson-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;border-bottom:1px solid var(--border-glass);padding-bottom:20px;margin-bottom:25px}.lesson-label{font-size:.75rem;font-weight:700;color:var(--primary-cyan);text-transform:uppercase;letter-spacing:.05em}.lesson-title{font-size:1.8rem;font-weight:700;margin-top:4px}.lesson-text-content{color:var(--text-secondary);font-size:1.02rem;line-height:1.85}.lesson-text-content h1,.lesson-text-content h2,.lesson-text-content h3{color:var(--text-primary);margin-top:30px;margin-bottom:15px}.lesson-text-content p{margin-bottom:15px}.lesson-text-content ul{margin-bottom:20px;padding-left:20px}.lesson-text-content li{margin-bottom:8px}.lesson-text-content pre{background:rgba(0,0,0,.4);border:1px solid var(--border-glass-bright);border-radius:var(--radius-sm);padding:16px;overflow-x:auto;margin:20px 0;font-family:monospace}.lesson-text-content code{font-family:Consolas,Monaco,Andale Mono,Ubuntu Mono,monospace;font-size:.9rem;background:rgba(255,255,255,.08);padding:2px 6px;border-radius:4px;color:#fb7185}.lesson-text-content pre code{background:transparent;padding:0;border-radius:0;color:var(--text-primary)}.course-completed-banner{margin-top:40px;padding:24px;background:var(--glow-cyan);border:1px solid rgba(6,182,212,.3);border-radius:var(--radius-md);display:flex;align-items:center;gap:20px;box-shadow:var(--shadow-cyan-glow)}.banner-icon-wrapper{background:rgba(6,182,212,.2);color:var(--primary-cyan);display:flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:var(--radius-sm);border:1px solid rgba(6,182,212,.3);flex-shrink:0}.banner-info{flex-grow:1}.banner-info h3{font-size:1.25rem;font-weight:700;margin-bottom:4px}.banner-info p{color:var(--text-secondary);font-size:.92rem;margin:0}.lesson-empty{padding:80px 40px;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px}.empty-icon{color:var(--text-muted)}.lesson-empty h3{font-size:1.4rem}.lesson-empty p{color:var(--text-secondary);max-width:320px}@media (max-width:992px){.course-viewer{grid-template-columns:1fr}.viewer-sidebar{position:static;max-height:none;overflow-y:visible}}@media 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solid var(--danger)}.attempt-meta{display:flex;flex-direction:column}.attempt-meta strong{font-size:.88rem;color:var(--text-primary)}.attempt-meta span{font-size:.72rem;color:var(--text-muted)}.attempt-score{display:flex;align-items:center;gap:10px}.score-num{font-size:1.05rem;font-weight:700;font-family:var(--font-title)}.danger-zone-content{display:flex;flex-direction:column;gap:20px}.danger-zone-alert{display:flex;align-items:flex-start;gap:15px;padding:20px;background:var(--danger-glow);border:1px solid rgba(220,38,38,.2);border-radius:var(--radius-sm);color:var(--danger);line-height:1.5}.danger-icon-heavy{flex-shrink:0;margin-top:2px}.danger-zone-alert h4{font-size:1.05rem;font-weight:700;margin-bottom:4px;color:var(--danger)}.danger-zone-alert p{font-size:.88rem;color:var(--text-secondary)}.danger-actions-panel{padding:20px;border:1px solid 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