:root {
  --bg: #fbfaf7; --fg: #1d1d1b; --muted: #6b6b66; --line: #e3e0d8; --head: #f0ede5; --accent: #2f5d8a;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161615; --fg: #e8e6e0; --muted: #9a978f; --line: #33322f; --head: #22211f; --accent: #8bb4dd; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 48px; }
h1 { font-size: 1.6rem; margin: 0 0 4px; }
#about { color: var(--muted); margin: 0 0 16px; max-width: 70ch; }
label { display: flex; flex-direction: column; gap: 2px; font-size: 0.85rem; color: var(--muted); }
.dataset { max-width: 360px; margin-bottom: 16px; }
#filters { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
#filters label { min-width: 120px; }
input, select, button { font: inherit; font-size: 0.95rem; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; }
input[type=number] { width: 7em; }
button { cursor: pointer; }
button:disabled { opacity: 0.4; cursor: default; }
nav { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 8px 0; color: var(--muted); }
#count { margin-right: auto; color: var(--fg); font-weight: 600; }
.wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { padding: 6px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { background: var(--head); cursor: pointer; user-select: none; position: sticky; top: 0; }
td:first-child { font-weight: 600; color: var(--accent); }
.num { text-align: right; font-variant-numeric: tabular-nums; }
[hidden] { display: none !important; }