:root{--surface-1: #fcfcfb;--page-plane: #f9f9f7;--text-primary: #0b0b0b;--text-secondary: #52514e;--text-muted: #898781;--gridline: #e1e0d9;--baseline: #c3c2b7;--border: rgba(11, 11, 11, .1);--series-1: #2a78d6;--series-2: #1baf7a;--series-3: #eda100;--series-4: #4a3aa7;--status-good: #0ca30c;--status-warning: #fab219;--status-serious: #ec835a;--status-critical: #d03b3b}@media (prefers-color-scheme: dark){:root{--surface-1: #1a1a19;--page-plane: #0d0d0d;--text-primary: #ffffff;--text-secondary: #c3c2b7;--text-muted: #898781;--gridline: #2c2c2a;--baseline: #383835;--border: rgba(255, 255, 255, .1);--series-1: #3987e5;--series-2: #199e70;--series-3: #c98500;--series-4: #9085e9;--status-good: #0ca30c;--status-warning: #fab219;--status-serious: #ec835a;--status-critical: #d03b3b}}*{box-sizing:border-box}body{margin:0;background:var(--page-plane);color:var(--text-primary);font-family:system-ui,-apple-system,Segoe UI,sans-serif}.app{max-width:1080px;margin:0 auto;padding:24px 20px 64px}h1{font-size:1.4rem;margin:0 0 4px}.subtitle{color:var(--text-secondary);font-size:.9rem;margin:0 0 28px}.card{background:var(--surface-1);border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:24px}.card h2{font-size:1rem;margin:0 0 4px;color:var(--text-primary)}.card .card-note{font-size:.82rem;color:var(--text-muted);margin:0 0 16px}.chart-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media (max-width: 720px){.chart-row{grid-template-columns:1fr}}.discrepancy-panel{border:1px solid var(--status-critical);background:var(--surface-1)}.discrepancy-panel h2{color:var(--status-critical)}.discrepancy-item{border-top:1px solid var(--gridline);padding:12px 0}.discrepancy-item:first-of-type{border-top:none}.discrepancy-item .bill-title{font-weight:600;display:flex;align-items:center;gap:8px}.discrepancy-item .bill-date{color:var(--text-muted);font-weight:400;font-size:.85rem}.badge{display:inline-block;font-size:.72rem;font-weight:600;padding:2px 8px;border-radius:999px}.badge-critical{background:color-mix(in srgb,var(--status-critical) 18%,transparent);color:var(--status-critical)}.badge-warning{background:color-mix(in srgb,var(--status-warning) 25%,transparent);color:#7a5a00}.discrepancy-note{font-size:.88rem;color:var(--text-secondary);margin:6px 0 0}.empty-state{color:var(--text-muted);font-size:.9rem;padding:8px 0}.loading,.error{padding:40px 0;text-align:center;color:var(--text-muted)}