/* Pendalogue site: system fonts only, nothing loaded from another host (D-0174 item 4). */
:root {
  --ink: #1d232a;
  --muted: #56606b;
  --line: #d9dee3;
  --wash: #f5f7f9;
  --accent: #1f5f8b;
  --bg: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e4e8ec;
    --muted: #a3adb7;
    --line: #37404a;
    --wash: #1b2128;
    --accent: #7db8e0;
    --bg: #12171c;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
header.site, main, footer.site {
  max-width: 46rem;
  margin: 0 auto;
  padding: 0 16px;
}
header.site {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1.25rem;
  padding-top: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}
header.site .brand { font-weight: 700; color: var(--ink); text-decoration: none; }
header.site nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; }
header.site nav a { color: var(--muted); text-decoration: none; }
header.site nav a:hover { color: var(--accent); }
main { padding-top: 1.5rem; padding-bottom: 2rem; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0.5rem 0 0.75rem; }
h2 { font-size: 1.3rem; margin-top: 2.25rem; padding-top: 0.5rem; border-top: 1px solid var(--line); }
h3 { font-size: 1.05rem; margin-top: 1.5rem; }
a { color: var(--accent); }
em { color: var(--muted); }
table {
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}
th, td { border-bottom: 1px solid var(--line); padding: 0.4rem 0.6rem; text-align: left; vertical-align: top; }
th { background: var(--wash); }
td:not(:first-child) { white-space: nowrap; }
code { font-size: 0.9em; background: var(--wash); padding: 0 0.2em; border-radius: 3px; }
/* The county page's "Method and limits", closed until the reader opens it; no script (D-0198). */
details#method { margin-top: 2.25rem; border-top: 1px solid var(--line); padding-top: 0.5rem; }
details#method > summary { cursor: pointer; font-size: 1.3rem; font-weight: 700; padding: 0.25rem 0; }
details#method > summary:hover { color: var(--accent); }
details#method[open] > summary { margin-bottom: 0.5rem; }
#notices ~ p { font-size: 0.9rem; color: var(--muted); }
/* the methods page's formulas, in words (D-0200) */
p.formula { background: var(--wash); border-left: 3px solid var(--accent); padding: 0.6rem 0.9rem; }
footer.site {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  padding-top: 1rem;
  padding-bottom: 2rem;
}

/* Charts (D-0181): inline SVG drawn by the engine; colours follow the page's theme. */
:root { --bar: #b9c3cc; --bar-hi: var(--accent); }
@media (prefers-color-scheme: dark) { :root { --bar: #6b7682; } }
figure.chart { margin: 1.5rem 0; }
figure.chart figcaption { font-size: 0.9rem; color: var(--muted); margin-bottom: 0.4rem; }
figure.chart svg { width: 100%; height: auto; display: block; font-size: 12px; }
figure.chart text { fill: var(--ink); }
figure.chart .value, figure.chart .ref-label, figure.chart .axis-title { fill: var(--muted); }
figure.chart .strip-title { font-weight: 600; }
figure.chart .label.hi { font-weight: 600; }
figure.chart .bar { fill: var(--bar); }
figure.chart .bar.hi, figure.chart .dot.hi { fill: var(--bar-hi); }
figure.chart .dot { fill: var(--bar); stroke: var(--bg); stroke-width: 1; }
figure.chart .axis { stroke: var(--line); stroke-width: 1; }
figure.chart .ref { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 4 3; }
figure.chart a:hover .bar, figure.chart a:hover .dot { fill: var(--accent); opacity: 0.8; }