:root {
  color-scheme: light dark;
  --bg: #fbfaf7;
  --fg: #1f2328;
  --muted: #5b6570;
  --rule: #e3e0d8;
  --link: #1f5fbf;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e6e6e3;
    --muted: #9aa3ab;
    --rule: #2b2f34;
    --link: #8ab4f8;
  }
}
* {
  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: 1.6rem;
  line-height: 1.25;
  margin: 0 0 0.5rem;
}
h2 {
  font-size: 1.1rem;
  margin: 2rem 0 0.25rem;
}
.lede,
footer {
  color: var(--muted);
}
a {
  color: var(--link);
}
footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-size: 0.9rem;
}