:root {
  color-scheme: light dark;
  --bg: #fafaf8;
  --fg: #16161a;
  --muted: #5d5d66;
  --line: #e2e2dc;
  --card: #ffffff;
  --accent: #e8572a;
  --accent-ink: #b8401b;
  --note: #fff4e5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121214;
    --fg: #f0f0ee;
    --muted: #a6a6ad;
    --line: #2c2c31;
    --card: #1b1b1f;
    --accent-ink: #ff8a5c;
    --note: #2b2117;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header, main, footer { max-width: 44rem; margin: 0 auto; padding: 0 1rem; }
header { display: flex; flex-wrap: wrap; gap: .25rem 1rem; align-items: baseline; padding-top: 1.25rem; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
header .brand { font-weight: 700; color: var(--fg); text-decoration: none; margin-right: auto; }
header nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; }
header nav a { color: var(--muted); text-decoration: none; }
header nav a[aria-current="page"] { color: var(--fg); font-weight: 600; }
main { padding-top: 2rem; padding-bottom: 3rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .5rem; }
h2 { font-size: 1.3rem; margin: 2.25rem 0 .5rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 .25rem; }
p, li { max-width: 40rem; }
a { color: var(--accent-ink); }
.lead { font-size: 1.15rem; color: var(--muted); margin-top: 0; }
.updated { color: var(--muted); font-size: .9rem; }
.note { background: var(--note); border-left: 4px solid var(--accent); padding: .75rem 1rem; border-radius: .25rem; }
.card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: .75rem; padding: 1rem 1.25rem; color: var(--fg); text-decoration: none; margin: 1rem 0; }
.card strong { font-size: 1.15rem; }
.card span { display: block; color: var(--muted); }
table { border-collapse: collapse; width: 100%; margin: 1rem 0; font-size: .95rem; }
th, td { text-align: left; vertical-align: top; padding: .5rem .5rem .5rem 0; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }
.table-wrap { overflow-x: auto; }
details { border-bottom: 1px solid var(--line); padding: .6rem 0; }
summary { cursor: pointer; font-weight: 600; }
footer { color: var(--muted); font-size: .9rem; padding-top: 1rem; padding-bottom: 2rem; border-top: 1px solid var(--line); }
footer a { color: var(--muted); }