.analyzing-section{background:linear-gradient(135deg,#fff9e6,#fff4d4);border:1px solid #ffd966;border-radius:12px;padding:24px;margin:24px 0}.analyzing-header{display:flex;align-items:center;gap:16px;margin-bottom:20px}.spinner{width:40px;height:40px;border:4px solid #ffd966;border-top-color:#f59e0b;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.analyzing-title{font-size:18px;font-weight:600;color:#2c3e50;margin:0}.analyzing-text{font-size:14px;color:#666;margin:4px 0 0}.progress-stats{display:flex;gap:24px;justify-content:space-between;margin-top:12px;padding-top:12px;border-top:1px solid #ffd966;font-size:14px;color:#555}.progress-percent{margin-left:auto;font-weight:600;color:#f59e0b}.email-input-group{display:flex;align-items:center;gap:12px;margin:15px 0}.email-input-group label{display:block;font-size:14px;color:#64748b;min-width:120px}.email-input{padding:12px 16px;border:1px solid #cbd5e1;border-radius:8px;width:450px;font-size:15px}.email-input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px #4a90e21a}.semester-selector{display:flex;gap:24px;margin-top:16px}.semester-selector>div{display:flex;flex-direction:column;gap:8px}.semester-selector label{font-size:14px;color:var(--text-secondary);font-weight:500}:root{--primary-color: #1e3a5f;--secondary-color: #7889a3;--accent-color: #4a90e2;--success-color: #28a745;--warning-color: #ffc107;--danger-color: #dc3545;--light-bg: #f5f7fa;--card-bg: #ffffff;--border-color: #e1e8ed;--text-primary: #2c3e50;--text-secondary: #6c757d}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:var(--light-bg);color:var(--text-primary);line-height:1.6}.container{max-width:1400px;margin:0 auto;padding:0 20px}.header{background-color:var(--primary-color);color:#fff;padding:20px 0;box-shadow:0 2px 8px #0000001a}.header-content{display:flex;justify-content:space-between;align-items:center}.system-title{font-size:24px;font-weight:600;margin-bottom:4px}.subtitle{font-size:14px;opacity:.9}.user-role{text-align:right}.role-badge{display:inline-block;background-color:var(--accent-color);padding:6px 16px;border-radius:20px;font-size:14px;font-weight:500;margin-left:8px}.main-content{padding:40px 0;min-height:calc(100vh - 120px)}.upload-card{background:var(--card-bg);border-radius:12px;padding:48px;max-width:800px;margin:0 auto;box-shadow:0 2px 12px #00000014}.upload-title{font-size:28px;text-align:center;margin-bottom:8px;color:var(--text-primary)}.upload-subtitle{text-align:center;color:var(--text-secondary);margin-bottom:32px}.upload-area{border:2px dashed var(--border-color);border-radius:8px;padding:60px 40px;text-align:center;cursor:pointer;transition:all .3s ease;margin-bottom:24px}.upload-area:hover{border-color:var(--accent-color);background-color:#f8f9fa}.upload-area.drag-over{border-color:var(--accent-color);background-color:#e7f3ff}.upload-icon{width:64px;height:64px;margin:0 auto 16px;color:var(--secondary-color);background-color:#e8ecf1;border-radius:50%;display:flex;align-items:center;justify-content:center}.upload-text{font-size:18px;font-weight:500;color:var(--text-primary);margin-bottom:8px}.upload-subtext{color:var(--text-secondary);margin-bottom:16px}.upload-format{display:flex;align-items:center;justify-content:center;gap:8px;color:var(--text-secondary);font-size:14px}.progress-area{background-color:#fffbf0;border:1px solid #ffe69c;border-radius:8px;padding:24px;margin-bottom:24px}.progress-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.spinner{animation:spin 1s linear infinite;color:var(--warning-color)}@keyframes 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var(--border-color)}.btn-secondary:hover{background-color:#f8f9fa}.dashboard-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:32px}.dashboard-title{font-size:32px;margin-bottom:8px}.dashboard-subtitle{color:var(--text-secondary);margin-bottom:16px}.semester-selector{display:flex;gap:12px}.semester-select,.course-select{padding:10px 16px;border:1px solid var(--border-color);border-radius:6px;font-size:14px;background-color:#fff}.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px;margin-bottom:32px}.kpi-card{background:var(--card-bg);padding:24px;border-radius:12px;box-shadow:0 2px 8px #0000000f}.kpi-label{font-size:14px;color:var(--text-secondary);margin-bottom:12px;font-weight:500}.kpi-value{font-size:36px;font-weight:700;color:var(--primary-color);margin-bottom:8px}.kpi-value.sentiment{color:var(--success-color)}.kpi-change,.kpi-subtext{font-size:13px;color:var(--text-secondary)}.sentiment-bar{width:100%;height:8px;background-color:#e9ecef;border-radius:4px;overflow:hidden;margin-top:12px}.sentiment-fill{height:100%;background:linear-gradient(90deg,#dc3545,#ffc107,#28a745);width:68%}.kpi-trend{display:flex;align-items:center;gap:8px;font-size:24px;font-weight:600;color:var(--success-color)}.chart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(500px,1fr));gap:24px;margin-bottom:32px}.chart-card{background:var(--card-bg);padding:24px;border-radius:12px;box-shadow:0 2px 8px #0000000f}.chart-title{font-size:18px;font-weight:600;margin-bottom:20px;color:var(--text-primary)}.section-title{font-size:20px;font-weight:600;margin-bottom:20px}.keywords-cloud{display:flex;flex-wrap:wrap;gap:12px;padding:20px}.keyword-tag{display:inline-block;padding:8px 16px;background-color:var(--accent-color);color:#fff;border-radius:20px;font-size:14px;font-weight:500}.feedback-summary{margin-bottom:32px}.themes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}.theme-card{background:var(--card-bg);padding:20px;border-radius:8px;border-left:4px solid}.theme-card.low{border-color:var(--success-color);background-color:#f0f9f4}.theme-card.medium{border-color:var(--warning-color);background-color:#fffbf0}.theme-card.high{border-color:var(--danger-color);background-color:#fef2f2}.theme-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.theme-name{font-weight:600;font-size:16px}.theme-score{font-size:20px;font-weight:700}.theme-label{font-size:12px;padding:4px 12px;border-radius:12px;font-weight:500}.theme-label.low{background-color:var(--success-color);color:#fff}.theme-label.medium{background-color:var(--warning-color);color:#fff}.theme-label.high{background-color:#6c757d;color:#fff}.theme-description{font-size:14px;color:var(--text-secondary);margin-top:8px}.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:24px;margin-bottom:32px}.insight-card{background:var(--card-bg);padding:24px;border-radius:12px;box-shadow:0 2px 8px #0000000f}.insight-title{display:flex;align-items:center;gap:12px;font-size:18px;margin-bottom:16px}.icon-success{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background-color:var(--success-color);color:#fff;border-radius:50%;font-size:18px}.icon-warning{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background-color:var(--warning-color);color:#fff;border-radius:50%;font-size:18px}.insight-item{padding:16px;margin-bottom:12px;border-radius:8px;border-left:3px solid}.insight-item.success{background-color:#f0f9f4;border-color:var(--success-color)}.insight-item.warning{background-color:#fffbf0;border-color:var(--warning-color)}.insight-item-title{font-weight:600;margin-bottom:4px}.insight-item-text{font-size:14px;color:var(--text-secondary)}.insight-priority{font-size:12px;padding:4px 8px;border-radius:4px;background-color:#e9ecef;color:var(--text-secondary);margin-top:8px;display:inline-block}.recommendations-card{background:var(--card-bg);padding:24px;border-radius:12px;box-shadow:0 2px 8px #0000000f;margin-bottom:32px}.recommendations-list{list-style:none;counter-reset:recommendations}.recommendations-list li{counter-increment:recommendations;margin-bottom:12px;background-color:#f8f9fa;border-radius:8px;position:relative;padding:16px 16px 16px 48px}.recommendations-list li:before{content:counter(recommendations);position:absolute;left:16px;top:16px;display:flex;align-items:center;justify-content:center;width:24px;height:24px;background-color:var(--primary-color);color:#fff;border-radius:50%;font-weight:600;font-size:14px}.alert-box{background-color:#fffbf0;border:1px solid var(--warning-color);border-radius:12px;padding:24px;margin-bottom:32px}.alert-title{display:flex;align-items:center;gap:12px;font-size:18px;margin-bottom:16px}.icon-alert{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background-color:var(--warning-color);color:#fff;border-radius:50%}.alert-item{padding:12px;background-color:#fff;border-radius:6px;margin-bottom:8px;font-size:14px}.ai-insights-footer{background-color:#e7f3ff;padding:20px;border-radius:8px;display:flex;align-items:center;gap:16px;margin-top:32px}.ai-icon{width:40px;height:40px;background-color:var(--accent-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#00000080;z-index:1000;display:flex;align-items:center;justify-content:center;animation:fadeIn .3s ease}@keyframes 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solid var(--accent-color)}.feedback-item.positive{border-left-color:var(--success-color)}.feedback-item.slightly-positive{border-left-color:#90d090}.feedback-item.neutral{border-left-color:var(--warning-color)}.feedback-item.slightly-negative{border-left-color:#f96}.feedback-item.negative{border-left-color:var(--danger-color)}.feedback-question{font-weight:600;color:var(--text-primary);margin-bottom:8px;font-size:14px}.feedback-answer{background-color:#fff;padding:12px;border-radius:6px;margin-bottom:12px;font-size:15px;color:var(--text-primary);border:1px solid var(--border-color)}.feedback-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:13px}.meta-item{display:flex;flex-direction:column;gap:4px}.meta-label{font-weight:600;color:var(--text-secondary);text-transform:uppercase;font-size:11px;letter-spacing:.5px}.meta-value{color:var(--text-primary)}.sentiment-badge{display:inline-block;padding:4px 12px;border-radius:16px;font-size:12px;font-weight:600}.sentiment-badge.positive{background-color:#d4edda;color:#155724}.sentiment-badge.slightly-positive{background-color:#d1ecf1;color:#0c5460}.sentiment-badge.neutral{background-color:#fff3cd;color:#856404}.sentiment-badge.slightly-negative{background-color:#f8d7da;color:#721c24}.sentiment-badge.negative{background-color:#f5c6cb;color:#721c24}.feedback-reasoning{margin-top:12px;padding:12px;background-color:#f0f7ff;border-left:3px solid var(--accent-color);border-radius:4px;font-size:13px;color:var(--text-secondary);font-style:italic}.modal-loading,.modal-empty{text-align:center;padding:40px;color:var(--text-secondary)}.theme-card{cursor:pointer;transition:transform .2s,box-shadow .2s}.theme-card:hover{transform:translateY(-2px);box-shadow:0 6px 12px #00000026}@media(max-width:768px){.header-content,.dashboard-header{flex-direction:column;gap:16px}.semester-selector{flex-direction:column}.kpi-grid,.chart-grid,.insights-grid,.themes-grid{grid-template-columns:1fr}}