:root {
  --bg: #fbfbfa;
  --fg: #1d2125;
  --muted: #5b6470;
  --line: #e2e5e9;
  --card: #ffffff;
  --accent: #1f5fbf;
  --accent-soft: #e8f0fc;
  --bar: #9bbbe8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181c;
    --fg: #e6e8eb;
    --muted: #a0a8b3;
    --line: #2c3239;
    --card: #1c2025;
    --accent: #7fb0ff;
    --accent-soft: #1e2a3b;
    --bar: #3f6aa8;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 16px; }
header.site { border-bottom: 1px solid var(--line); background: var(--card); }
header.site .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; padding-top: 12px; padding-bottom: 12px; }
header.site .brand { font-weight: 700; color: var(--fg); text-decoration: none; margin-right: auto; }
header.site nav { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 15px; }
header.site nav a { text-decoration: none; }
header.site nav a[aria-current="page"] { color: var(--fg); font-weight: 600; }
main { padding: 28px 0 40px; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 1.3rem; margin: 32px 0 8px; }
h3 { font-size: 1.05rem; margin: 20px 0 4px; }
.lede { font-size: 1.1rem; color: var(--muted); margin-top: 0; }
.small { font-size: 14px; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 20px 0; }
.card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; text-decoration: none; color: var(--fg); }
.card:hover, .card:focus { border-color: var(--accent); }
.card strong { display: block; color: var(--accent); margin-bottom: 4px; }
.card span { font-size: 15px; color: var(--muted); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin: 16px 0; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; }
.stat b { display: block; font-size: 1.4rem; }
.stat span { font-size: 14px; color: var(--muted); }
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--card); }
table { border-collapse: collapse; width: 100%; font-size: 15px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
th { font-weight: 600; white-space: nowrap; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
th button { all: unset; cursor: pointer; }
th button:focus-visible { outline: 2px solid var(--accent); }
th[aria-sort="ascending"] button::after { content: " \25B2"; font-size: 11px; }
th[aria-sort="descending"] button::after { content: " \25BC"; font-size: 11px; }
td button.link { all: unset; cursor: pointer; color: var(--accent); text-decoration: underline; }
td button.link:focus-visible { outline: 2px solid var(--accent); }
tr.selected td { background: var(--accent-soft); }
.bar { display: block; height: 8px; border-radius: 4px; background: var(--bar); min-width: 2px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px; margin: 16px 0; }
form.rank { display: grid; gap: 12px; }
form.rank label { display: grid; gap: 4px; font-weight: 600; font-size: 15px; }
input, select, button.primary { font: inherit; padding: 9px 11px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg); width: 100%; }
button.primary { background: var(--accent); color: #fff; border-color: var(--accent); cursor: pointer; font-weight: 600; width: auto; justify-self: start; }
button.primary[disabled] { opacity: .6; cursor: default; }
@media (prefers-color-scheme: dark) { button.primary { color: #10151c; } }
.result-rank { font-size: 1.6rem; font-weight: 700; margin: 0; }
.error { color: #b3261e; }
@media (prefers-color-scheme: dark) { .error { color: #ff8a80; } }
footer.site { border-top: 1px solid var(--line); padding: 20px 0 32px; font-size: 14px; color: var(--muted); }
footer.site a { color: var(--muted); }
@media (max-width: 520px) {
  body { font-size: 16px; }
  h1 { font-size: 1.55rem; }
  table { font-size: 14px; }
  th, td { padding: 7px 6px; }
  th { white-space: normal; }
}