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p{color:var(--text-secondary);margin:0}.attendance-placeholder{text-align:center;padding:48px 24px;background:var(--bg-accent);border-radius:10px}.placeholder-icon{font-size:48px;margin-bottom:16px;opacity:.4}.history-table-container{overflow-x:auto;border-radius:10px;border:1px solid var(--border-light)}.history-table{width:100%;border-collapse:collapse}.history-table thead{background:var(--bg-accent)}.history-table th{padding:14px 16px;text-align:left;font-weight:600;color:var(--text-primary);font-size:12px;text-transform:uppercase;letter-spacing:.5px}.history-table td{padding:14px 16px;border-top:1px solid var(--border-light);color:var(--text-primary);font-size:14px}.history-table tbody tr{transition:all .2s ease}.history-table tbody tr:hover{background:var(--bg-accent)}.btn-view-all{width:100%;padding:12px;background:#fff;color:var(--primary);border:1px solid var(--primary);border-radius:8px;font-weight:600;cursor:pointer;margin-top:16px;transition:all .3s ease}.btn-view-all:hover{background:var(--primary);color:#fff}.no-history{text-align:center;padding:48px 24px;background:var(--bg-accent);border-radius:10px}.no-history-icon{font-size:64px;margin-bottom:16px;opacity:.4}.no-history p{color:var(--text-secondary);margin:0}@media(max-width:1024px){.content-grid{grid-template-columns:1fr}}@media(max-width:768px){.dashboard-main{margin-left:0;padding:80px 16px 16px}.dashboard-header{flex-direction:column;gap:16px;text-align:center;padding:24px}.stats-grid{grid-template-columns:1fr}.stat-card{flex-direction:column;text-align:center}.quick-actions{grid-template-columns:1fr}}.performance-chart{padding:20px 0}.chart-container{display:flex;flex-direction:column;gap:24px}.chart-bars{display:flex;align-items:flex-end;justify-content:space-around;height:300px;gap:12px;padding:20px;background:var(--bg-accent);border-radius:12px;border:1px solid var(--border-light)}.chart-bar-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px}.bar-container{width:100%;height:260px;background:#f0f0f0;border-radius:8px 8px 0 0;position:relative;display:flex;align-items:flex-end}.bar-fill{width:100%;border-radius:8px 8px 0 0;transition:height .5s 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span{font-size:12px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.btn-take-quiz{width:100%;padding:16px;background:linear-gradient(135deg,var(--primary),#4CAF50);color:#000;border:none;border-radius:10px;font-size:16px;font-weight:700;cursor:pointer;transition:all .3s ease}.btn-take-quiz:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #4caf504d}.btn-take-quiz:disabled{background:#e0e0e0;color:#999;cursor:not-allowed}.no-quizzes{text-align:center;padding:80px 20px;background:#fff;border-radius:12px;border:1px solid var(--border-light)}.no-quizzes-icon{font-size:64px;margin-bottom:20px}.no-quizzes h3{font-size:24px;font-weight:700;color:var(--text-primary);margin-bottom:12px}.no-quizzes 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span:last-child{font-size:16px;color:var(--text-secondary)}.option{display:flex;align-items:center;gap:16px;padding:16px 20px;background:var(--bg-accent);border:2px solid var(--border-light);border-radius:10px;margin-bottom:12px;cursor:pointer;transition:all .3s ease}.option:hover{border-color:var(--primary);background:#fff}.option.selected{background:#e8f5e9;border-color:var(--primary);border-width:3px}.option input[type=radio]{display:none}.option-letter{background:var(--primary);color:#fff;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0}.option.selected .option-letter{background:#2e7d32}.option-text{font-size:15px;color:var(--text-primary);line-height:1.5}.error-container{text-align:center;padding:80px 20px;background:#fff;border-radius:12px;border:1px solid var(--border-light)}.quiz-container{max-width:900px;margin:0 auto}.quiz-header{background:var(--bg-card);border-radius:20px;padding:30px;margin-bottom:30px;border:1px solid rgba(139,92,246,.2);display:flex;justify-content:space-between;align-items:center}.quiz-header-left h1{font-size:32px;font-weight:700;margin-bottom:8px;color:var(--text-primary)}.quiz-header-left p{color:var(--text-secondary);font-size:14px}.quiz-header-actions{display:flex;gap:12px}.btn{padding:12px 24px;border:none;border-radius:10px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:14px}.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:0 4px 12px #ef44444d}.btn-danger:hover{transform:translateY(-2px);box-shadow:0 6px 16px #ef444466}.quiz-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:30px}.stat-card{background:var(--bg-card);border-radius:16px;padding:24px;border:1px solid rgba(139,92,246,.2);transition:all .3s ease}.stat-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 8px 24px #8b5cf633}.stat-label{font-size:13px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}.stat-value{font-size:32px;font-weight:700;color:var(--primary)}.quiz-card{background:var(--bg-card);border-radius:20px;padding:40px;border:1px solid rgba(139,92,246,.2);margin-bottom:30px}.quiz-info{margin-bottom:30px;padding-bottom:30px;border-bottom:1px solid rgba(139,92,246,.1)}.quiz-info h2{font-size:28px;font-weight:700;margin-bottom:12px}.quiz-info 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