:root { --fg: #1d232b; --muted: #5b6573; --bg: #fbfbf9; --card: #ffffff; --line: #dfe2e6; --accent: #1f5f99;
        --quote: #f2f4f7; }
@media (prefers-color-scheme: dark) {
  :root { --fg: #e4e7eb; --muted: #9aa4b1; --bg: #15181c; --card: #1c2026; --line: #2f353d; --accent: #7fb3e6;
          --quote: #222831; } }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--fg); background: var(--bg); }
header { border-bottom: 1px solid var(--line); background: var(--card); }
nav, main, footer { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
nav { display: flex; flex-wrap: wrap; gap: 4px 18px; padding-top: 12px; padding-bottom: 12px; }
nav a { color: var(--fg); text-decoration: none; } nav a.brand { font-weight: 700; }
main { padding-top: 16px; padding-bottom: 40px; }
a { color: var(--accent); }
h1 { font-size: 1.6rem; line-height: 1.25; } h2 { font-size: 1.25rem; margin-top: 2rem; } h3 { font-size: 1.05rem; }
.muted, footer { color: var(--muted); } footer { font-size: .85rem; padding-top: 16px; padding-bottom: 32px; border-top: 1px solid var(--line); }
.table { overflow-x: auto; } table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { border-bottom: 1px solid var(--line); padding: 6px 8px; text-align: left; vertical-align: top; }
th { font-weight: 600; } td.n, th.n { text-align: right; font-variant-numeric: tabular-nums; }
blockquote { margin: 6px 0; padding: 6px 12px; background: var(--quote); border-left: 3px solid var(--line); }
code { font-size: .88em; overflow-wrap: anywhere; } .card { background: var(--card); border: 1px solid var(--line); border-radius: 6px; padding: 12px 16px; margin: 12px 0; }
.label { display: inline-block; font-size: .78rem; padding: 0 6px; margin: 1px 2px 1px 0; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); }
.claim { border-top: 1px solid var(--line); padding: 10px 0; } .cite { font-size: .9rem; margin: 6px 0 10px; }