:root {
  --bg: #fbfaf7;
  --fg: #1f2328;
  --muted: #5b626b;
  --link: #1a56b0;
  --rule: #e3e0d8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17191c;
    --fg: #e8e6e1;
    --muted: #a0a6ae;
    --link: #8ab4f8;
    --rule: #2c3036;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1rem 4rem;
}
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 0.5rem; }
h2 { font-size: 1.25rem; margin: 2.25rem 0 0.5rem; }
p, ul { margin: 0.75rem 0; }
ul { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }
a { color: var(--link); }
.lede { color: var(--muted); font-size: 1.1rem; }
footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.9rem;
}