:root {
  color-scheme: light dark;
  --text: #1f2328;
  --muted: #59636e;
  --link: #0b57d0;
  --bg: #ffffff;
  --code-bg: #f3f4f6;
  --rule: #d1d9e0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6e8eb;
    --muted: #a3abb5;
    --link: #8ab4f8;
    --bg: #16181c;
    --code-bg: #262a31;
    --rule: #3a404a;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main,
footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1rem;
}

main {
  padding-top: 2rem;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 0.5rem 0 0.75rem;
}

h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

h3 {
  font-size: 1.05rem;
  margin: 1.75rem 0 0.25rem;
}

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

code {
  background: var(--code-bg);
  border-radius: 4px;
  padding: 0.05em 0.35em;
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.brand {
  margin: 0;
  font-weight: 600;
}

.brand a {
  color: var(--muted);
  text-decoration: none;
}

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

footer {
  color: var(--muted);
  font-size: 0.85rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
}