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.stat-card__accent{background:linear-gradient(90deg,#ef4444,#f87171)}.dashboard-loading,.dashboard-error{color:var(--text-muted);font-size:16px}.dashboard-error{color:var(--danger)}.usage-hot{color:#ef4444;font-weight:600}.usage-cold{color:#2563eb;font-weight:600}.dashboard-section-full{grid-column:1 / -1}.empty-state{color:var(--text-muted);font-size:14px;text-align:center;padding:20px}.room-usage-comparison{display:grid;grid-template-columns:1fr 1fr;gap:24px}.room-usage-column{display:flex;flex-direction:column}.column-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--panel-border)}.column-header h3{margin:0;font-size:1.125rem;font-weight:600;color:var(--text)}.column-date{font-size:.875rem;color:var(--text-muted);font-weight:500}.rooms-list-compact{display:flex;flex-direction:column;gap:8px;max-height:600px;overflow-y:auto}.room-item-compact{display:flex;align-items:center;padding:10px 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#0206170f}.analytics-date-banner-label{font-size:.8rem;color:#94a3b8;font-weight:500;text-transform:uppercase;letter-spacing:.04em}.analytics-date-banner-range{font-size:1.05rem;font-weight:700;color:#0f172a}.analytics-date-banner-grain{font-size:.8rem;font-weight:600;color:#3b82f6;background:#eff6ff;border:1px solid #dbeafe;border-radius:6px;padding:.2rem .6rem}.analytics-date-banner-days{font-size:.8rem;color:#64748b;margin-left:auto}.analytics-section-title{font-size:1.1rem;font-weight:600;color:#334155;margin:0 0 .25rem}.analytics-section-desc{font-size:.88rem;color:#64748b;line-height:1.5;margin:0 0 1rem}.chart-desc{font-size:.88rem;color:#64748b;line-height:1.5;margin:-.75rem 0 1.25rem}.analytics-loading,.analytics-empty{color:#ffffffb8;font-size:16px;text-align:center;padding:40px}.analytics-empty 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#e2e8f0}.kpi-change{font-size:14px;font-weight:600}.kpi-avg{font-size:12px;color:#94a3b8}.kpi-note{font-size:12px;color:#94a3b8;font-style:italic;margin-top:8px}.chart-section{background:#ffffffeb;border:1px solid rgba(255,255,255,.6);border-radius:18px;padding:24px;box-shadow:0 16px 40px #0206171a;margin-bottom:24px}.chart-section h2{margin:0 0 24px;font-size:1.5rem;font-weight:700;color:#1e293b;letter-spacing:-.02em}.chart-wrapper{height:1000px!important;min-height:1000px!important;width:100%;margin-bottom:20px;position:relative;padding:30px;background:#fff;border-radius:12px;border:1px solid #e2e8f0}.chart-wrapper canvas{max-height:940px!important;height:940px!important}@media (max-width: 768px){.chart-wrapper{height:600px!important;min-height:600px!important;padding:15px}.chart-wrapper canvas{max-height:570px!important;height:570px!important}}.chart-container{display:flex;align-items:flex-end;gap:8px;height:300px;padding:20px 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.chart-total-label{color:#ffffffe6}.chart-total-value{font-size:16px;font-weight:700;color:#1e293b}.chart-total-value.hot{color:#dc2626}.chart-total-value.cold{color:#2563eb}.chart-total-item-total .chart-total-value{color:#fff}.legend-color{width:16px;height:16px;border-radius:4px}.legend-color.hot{background:linear-gradient(135deg,#dc2626,#ef4444)}.legend-color.cold{background:linear-gradient(135deg,#2563eb,#3b82f6)}.analytics-ai{background:#ffffffeb;border:1px solid rgba(255,255,255,.6);border-radius:18px;padding:24px;box-shadow:0 16px 40px #0206171a;margin-top:24px}.analytics-ai-header h2{margin:0 0 12px;font-size:18px;color:#0f172a}.analytics-ai-controls{display:grid;gap:12px}.analytics-ai-controls label{display:grid;gap:6px;font-size:12px;font-weight:600;color:#475569;text-transform:uppercase;letter-spacing:.5px}.analytics-ai-controls select,.analytics-ai-controls textarea{border:1px solid #e2e8f0;border-radius:8px;padding:8px 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