:root { --bg: #fbfaf7; --fg: #1d1d1b; --muted: #5c5a55; --line: #e4e1da; --link: #8a3b12; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #161513; --fg: #ecebe6; --muted: #a8a59d; --line: #2e2c28; --link: #f0a070; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 48px 16px 64px; }
h1 { font-size: 1.9rem; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 1.15rem; margin: 32px 0 8px; }
p, li { color: var(--fg); }
.lede { color: var(--muted); margin-top: 0; }
a { color: var(--link); }
ul { padding-left: 1.2em; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }