:root {
  --bg: #fafaf8;
  --fg: #1d1d1b;
  --muted: #5f5f5a;
  --rule: #e2e2dc;
  --link: #1f5fa8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161615;
    --fg: #e8e8e3;
    --muted: #a3a39c;
    --rule: #2e2e2b;
    --link: #7fb0e8;
  }
}
body {
  margin: 0;
  padding-block: 3rem;
  padding-inline: 1.25rem;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 42rem; margin: 0 auto; }
h1 { font-size: 1.6rem; line-height: 1.25; margin: 0 0 .25rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 .5rem; }
.meta { color: var(--muted); margin: 0 0 2rem; }
a { color: var(--link); }
code { font-size: .9em; }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: .9rem; }