:root { --bg: #fdfdfc; --fg: #1f2328; --muted: #59636e; --rule: #d8dee4; --link: #0b5cad; }
@media (prefers-color-scheme: dark) {
  :root { --bg: #16181b; --fg: #e6e8eb; --muted: #9aa3ad; --rule: #30363d; --link: #6cb6ff; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
main { max-width: 40rem; margin: 0 auto; padding: 3rem 1rem 2rem; }
h1 { font-size: 1.8rem; line-height: 1.25; margin: 0 0 .5rem; }
h2 { font-size: 1.2rem; margin: 2.2rem 0 .4rem; }
p, ul { margin: 0 0 1rem; }
a { color: var(--link); }
code { font: .9em ui-monospace, SFMono-Regular, Menlo, monospace; }
.meta { color: var(--muted); margin-bottom: 2rem; }
footer { max-width: 40rem; margin: 0 auto; padding: 1rem 1rem 3rem; border-top: 1px solid var(--rule);
  color: var(--muted); font-size: .9rem; }
footer a { color: var(--muted); margin-right: 1rem; }