:root{--color-primary:#3498db;--color-primary-hover:#2980b9;--color-primary-light:#e8f4fd;--color-success:#27ae60;--color-success-hover:#219a52;--color-success-bg:#d4edda;--color-success-text:#155724;--color-warning:#f39c12;--color-warning-bg:#fff3cd;--color-warning-text:#856404;--color-danger:#e74c3c;--color-danger-hover:#c0392b;--color-danger-bg:#f8d7da;--color-danger-text:#721c24;--color-info:#3498db;--color-bg:#f0f2f5;--color-bg-secondary:#f8f9fa;--color-bg-hover:#f9f9f9;--color-bg-subtle:#fafafa;--color-bg-even-row:#fafbfc;--color-white:#fff;--color-text:#333;--color-text-secondary:#666;--color-text-muted:#999;--color-text-label:#888;--color-border:#ddd;--color-border-light:#eee;--color-border-dark:#dee2e6;--color-border-section:#e0e0e0;--color-border-mid:#e9ecef;--color-icon-muted:#ccc;--color-star-active:#f5a623;--color-tab-active:#1976d2;--color-sidebar:#1a1a2e;--color-sidebar-hover:#16213e;--color-sidebar-border:#333;--spacing-xs:4px;--spacing-sm:8px;--spacing-md:16px;--spacing-lg:24px;--spacing-xl:32px;--radius-sm:4px;--radius-md:6px;--radius-lg:8px;--radius-xl:12px;--radius-full:9999px;--shadow-sm:0 1px 3px #0000001a;--shadow-md:0 4px 12px #00000026;--shadow-lg:0 10px 40px #0003;--transition-fast:0.15s ease;--transition-normal:0.2s ease;--transition-slow:0.3s ease}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:#f0f2f5;background:var(--color-bg);color:#333;color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app{display:flex;min-height:100vh}.sidebar{background:#1a1a2e;background:var(--color-sidebar);color:#fff;flex-shrink:0;padding:0;width:240px}.sidebar h2{font-size:15px;margin-bottom:10px;padding:20px}.sidebar nav a{align-items:center;color:#ccc;color:var(--color-icon-muted);display:flex;gap:10px;padding:12px 20px;text-decoration:none}.main-content{flex:1 1;overflow-x:auto;padding:24px;padding:var(--spacing-lg)}.page-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:24px;margin-bottom:var(--spacing-lg)}.page-header 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#3498db;border-left:4px solid var(--color-info)}.stat-card.danger{border-left:4px solid #e74c3c;border-left:4px solid var(--color-danger)}.card{background:#fff;background:var(--color-white);border-radius:8px;border-radius:var(--radius-lg);box-shadow:0 1px 3px #0000001a;box-shadow:var(--shadow-sm);margin-bottom:20px;padding:20px;transition:transform .15s ease,box-shadow .15s ease;transition:transform var(--transition-fast),box-shadow var(--transition-fast)}.card h3{font-size:13px;margin-bottom:16px;margin-bottom:var(--spacing-md)}table{border-collapse:collapse;width:100%}td,th{border-bottom:1px solid #eee;border-bottom:1px solid var(--color-border-light);font-size:12px;padding:10px 12px;text-align:left}th{background:#fafafa;background:var(--color-bg-subtle);color:#666;color:var(--color-text-secondary);font-weight:600}tr:hover{background:#f9f9f9;background:var(--color-bg-hover)}.btn{border:none;border-radius:6px;border-radius:var(--radius-md);cursor:pointer;font-size:12px;font-weight:500;padding:8px 16px;transition:transform .15s ease,background .2s ease,box-shadow .15s ease;transition:transform var(--transition-fast),background var(--transition-normal),box-shadow var(--transition-fast)}.btn:active{transform:scale(.97)}.btn-primary{background:#3498db;background:var(--color-primary);color:#fff}.btn-primary:hover{background:#2980b9;background:var(--color-primary-hover);box-shadow:0 2px 8px #3498db4d}.btn-success{background:#27ae60;background:var(--color-success);color:#fff}.btn-success:hover{background:#219a52;background:var(--color-success-hover);box-shadow:0 2px 8px 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svg{height:16px;width:16px}.dashboard-grid{grid-gap:20px;display:grid;gap:20px;grid-template-columns:1fr 1fr;margin-bottom:20px}.chart-wrapper{display:flex;flex-direction:column}.chart-container{align-items:flex-end;display:flex;gap:4px;height:250px;padding:20px 0 0;position:relative}.chart-bar-wrapper{align-items:center;display:flex;flex:1 1;flex-direction:column;height:100%;justify-content:flex-end;min-width:20px}.chart-bar{background:linear-gradient(180deg,#3498db,#2980b9);background:linear-gradient(180deg,var(--color-primary) 0,var(--color-primary-hover) 100%);border-radius:4px 4px 0 0;cursor:pointer;position:relative;transition:all .2s ease;width:100%}.chart-bar:hover{background:linear-gradient(180deg,#2980b9,#1a6da3);background:linear-gradient(180deg,var(--color-primary-hover) 0,#1a6da3 100%);box-shadow:0 -4px 12px #3498db4d}.chart-bar .chart-tooltip{background:#1e1e1ef2;border-radius:6px;border-radius:var(--radius-md);bottom:calc(100% + 8px);box-shadow:0 4px 12px 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