:root {
  color-scheme: light dark;
  --bg: #fafafa;
  --fg: #1d1f23;
  --muted: #5c6370;
  --link: #1f5fbf;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e6e8eb;
    --muted: #9aa3ad;
    --link: #7fb2ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto;
  max-width: 42rem;
  padding: 1rem;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.5 system-ui, sans-serif;
  overflow-wrap: anywhere;
}
h1 { font-size: 1.5rem; margin: 0.5rem 0 1rem; }
a { color: var(--link); }
nav ul { list-style: none; margin: 0 0 1.5rem; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; }
pre { max-width: 100%; overflow-x: auto; }