:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --muted: #595959;
  --link: #0b5cad;
  --rule: #d9d9d9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --text: #f2f2f2;
    --muted: #b3b3b3;
    --link: #8ab4f8;
    --rule: #3a3a3a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    17px/1.6 -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    sans-serif;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 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,
li {
  margin: 0.5rem 0;
}

a {
  color: var(--link);
}

.muted {
  color: var(--muted);
}

.tagline {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0.25rem 0 1.5rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.9rem;
}