:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1b1f24;
  --muted: #57606a;
  --link: #0f6cbd;
  --rule: #d8dee4;
  --code-bg: #f3f5f7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --fg: #e6e8eb;
    --muted: #9aa4ae;
    --link: #6cb4f0;
    --rule: #2c3238;
    --code-bg: #1e2328;
  }
}

* {
  box-sizing: border-box;
}

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

main,
footer {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2rem 1rem;
}

footer {
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.875rem;
  padding-top: 1rem;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 0.5rem 0 1rem;
}

h2 {
  font-size: 1.2rem;
  margin: 2rem 0 0.5rem;
}

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

code {
  background: var(--code-bg);
  border-radius: 4px;
  font-size: 0.9em;
  padding: 0.1em 0.3em;
}

.meta {
  color: var(--muted);
  margin-top: -0.5rem;
}

li + li {
  margin-top: 0.4rem;
}