:root { --ink: #1d2433; --muted: #5b6475; --bg: #fbfaf7; --rule: #e3dfd6; --link: #2b5c8a; }
@media (prefers-color-scheme: dark) {
  :root { --ink: #e9e6de; --muted: #a7a293; --bg: #161a22; --rule: #2c3240; --link: #8fb8e0; }
}
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 system-ui, sans-serif; }
main { max-width: 38rem; margin: 0 auto; padding: 2.5rem 16px 4rem; }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 2rem 0 .5rem; }
a { color: var(--link); }
.muted { color: var(--muted); }
hr { border: 0; border-top: 1px solid var(--rule); margin: 2rem 0; }
footer a { margin-right: 1rem; }