:root {
  --paper: #fbf8f1;
  --ink: #2b2620;
  --muted: #6d6458;
  --accent: #a8741a;
  --rule: #e6dfd2;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1b1915;
    --ink: #ece6da;
    --muted: #a99f90;
    --accent: #e0aa4c;
    --rule: #34302a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 48px 16px 24px; }
h1 { font-size: 2.2rem; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 1.2rem; margin: 32px 0 8px; }
.lead { color: var(--muted); margin-top: 0; }
a { color: var(--accent); }
code { font-size: .9em; background: var(--rule); padding: 1px 5px; border-radius: 4px; }
ul { padding-left: 20px; }
footer { max-width: 680px; margin: 0 auto; padding: 24px 16px 48px; border-top: 1px solid var(--rule); color: var(--muted); font-size: .9rem; }