:root {
  --bg: #ffffff;
  --fg: #1d2329;
  --muted: #5d6873;
  --line: #e2e6ea;
  --link: #2a6fb0;
  --code: #f3f5f7;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #182026;
    --fg: #e6eaee;
    --muted: #9aa6b2;
    --line: #2c3740;
    --link: #7ab3e6;
    --code: #222c33;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header.site { border-bottom: 1px solid var(--line); }
header.site nav { max-width: 720px; margin: 0 auto; padding: 14px 16px; display: flex; flex-wrap: wrap; gap: 6px 20px; align-items: baseline; }
header.site a.brand { font-weight: 700; color: var(--fg); margin-right: auto; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; }
h2 { font-size: 21px; margin: 36px 0 8px; }
h3 { font-size: 17px; margin: 24px 0 4px; }
p.meta { color: var(--muted); margin: 0 0 28px; font-size: 15px; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; padding: 8px 10px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; }
code { background: var(--code); padding: 1px 5px; border-radius: 3px; font-size: 0.92em; }
.note { border-left: 3px solid var(--line); padding: 2px 0 2px 14px; color: var(--muted); }
footer { max-width: 720px; margin: 0 auto; padding: 20px 16px 40px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }