:root {
  --ink: #21262e;
  --muted: #5d6570;
  --line: #d8dde4;
  --bg: #f5f6f4;
  --card: #ffffff;
  --accent: #b04a1e;
  --accent-soft: #f9ece4;
  --good: #2e7d32;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1120px; margin: 0 auto; padding: 14px 20px;
}
.brand { font-weight: 700; font-size: 1.25rem; color: var(--accent); text-decoration: none; letter-spacing: .02em; }
.nav-links a { margin-left: 18px; color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
main { max-width: 1120px; margin: 0 auto; padding: 0 20px 40px; }
.hero { padding: 26px 0 10px; }
.hero h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); margin: 0 0 8px; }
.lede { color: var(--muted); font-size: 1.05rem; max-width: 46rem; margin: 0; }

.tool {
  display: grid; grid-template-columns: minmax(260px, 4fr) minmax(420px, 8fr);
  gap: 20px; margin-top: 22px; align-items: start;
}
@media (max-width: 820px) { .tool { grid-template-columns: 1fr; } }
.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 20px 22px;
}
.panel h2 { font-size: 1.05rem; margin: 4px 0 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.panel label { display: block; margin: 12px 0 6px; font-weight: 600; font-size: .95rem; }
.row { display: flex; align-items: center; gap: 10px; }
.row input[type="range"] { flex: 1; }
.row output { min-width: 48px; text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; }
input[type="search"] { width: 100%; padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 1rem; }
select[multiple] { width: 100%; padding: 4px; border: 1px solid var(--line); border-radius: 6px; font-size: .95rem; background: #fff; }
.hint { color: var(--muted); font-size: .85rem; margin: 12px 0 2px; }
.count { font-weight: 400; color: var(--muted); text-transform: none; letter-spacing: 0; }

.tablewrap { overflow-x: auto; }
table.chart { width: 100%; border-collapse: collapse; margin: 10px 0 4px; font-size: .92rem; }
table.chart th, table.chart td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; white-space: nowrap; }
table.chart th { background: var(--accent-soft); cursor: pointer; user-select: none; }
table.chart td.num { text-align: right; font-variant-numeric: tabular-nums; }
.uwo { color: var(--muted); font-size: .78rem; }
.note { color: var(--accent); cursor: help; }

.compare { margin-top: 18px; }
.compare-tbl th { cursor: default; }
.compare a { color: var(--accent); }

.explainer { margin-top: 30px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 20px 24px; }
.explainer h2 { margin-top: 0; }

footer { border-top: 1px solid var(--line); margin-top: 40px; }
footer p { max-width: 1120px; margin: 12px auto; padding: 0 20px; color: var(--muted); font-size: .9rem; }
.fineprint { font-size: .8rem !important; }

article.page { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 26px 30px; margin-top: 24px; }
article.page h1 { margin-top: 0; }
article.page h2 { margin-top: 26px; }
table.plain { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: .95rem; }
table.plain th, table.plain td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; }
table.plain th { background: var(--accent-soft); }
.callout { background: var(--accent-soft); border-left: 4px solid var(--accent); padding: 10px 16px; border-radius: 0 8px 8px 0; margin: 16px 0; }
p.specs { font-size: .95rem; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 8px 14px; }
p.specs .src { display: block; margin-top: 4px; font-size: .8rem; color: var(--muted); }
tr:target { outline: 2px solid var(--accent); outline-offset: -2px; }