:root {
  --bg: #fbfbfa;
  --panel: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: #e3e3e0;
  --accent: #2f6fdf;
  --up: #c2392b;
  --down: #1f8a5b;
  --warn: #fff6dd;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161617;
    --panel: #1f1f21;
    --text: #ececee;
    --muted: #9a9aa0;
    --line: #333336;
    --accent: #6b9cff;
    --up: #ff7a6b;
    --down: #5fd49b;
    --warn: #3a3320;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
header { background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 1; }
nav { max-width: 1200px; margin: 0 auto; padding: 0 16px; display: flex; gap: 4px; overflow-x: auto; }
nav a { padding: 12px 14px; color: var(--muted); text-decoration: none; border-bottom: 2px solid transparent; }
nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }
main { max-width: 1200px; margin: 0 auto; padding: 16px; }
h1 { font-size: 24px; margin: 8px 0 12px; }
h2 { font-size: 17px; margin: 20px 0 8px; }
h3 { font-size: 15px; margin: 16px 0 4px; }
a { color: var(--accent); }
.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 12px; }
.filters label { color: var(--muted); display: flex; gap: 6px; align-items: center; }
input, select { font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 5px 8px; }
input[type="search"] { width: min(480px, 100%); }
.summary { color: var(--muted); }
.summary strong { color: var(--text); }
.chart { margin: 8px 0 16px; height: 320px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); gap: 24px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 4px 12px 12px; margin-top: 20px; }
table { width: 100%; border-collapse: collapse; }
.table-scroll { overflow-x: auto; }
th, td { padding: 6px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.small { font-size: 12px; font-weight: normal; }
.up { color: var(--up); }
.down { color: var(--down); }
tr.unreliable td { background: var(--warn); }
@media (max-width: 600px) { .columns { grid-template-columns: 1fr; } .chart { height: 240px; } }
.category-group { margin: 10px 0; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); }
.category-group > summary { cursor: pointer; padding: 2px 0; }
.category-group > table { margin-top: 12px; }