:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666666;
  --border: #d8dadf;
  --accent: #3b6ef6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1e1f22;
    --fg: #f0f0f2;
    --muted: #a0a3ab;
    --border: #3a3b40;
    --accent: #8da7ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--fg);
  background: var(--bg);
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 56px;
}

nav {
  display: flex;
  gap: 10px;
  margin-bottom: 32px;
  font-size: 14px;
}

h1 {
  margin: 0;
  font-size: 30px;
  line-height: 1.25;
}

h2 {
  margin: 28px 0 8px;
  font-size: 20px;
}

p,
ul {
  margin: 12px 0;
}

ul {
  padding-inline-start: 24px;
}

li + li {
  margin-top: 10px;
}

.updated {
  color: var(--muted);
  font-size: 14px;
}

a,
a:visited {
  color: var(--accent);
}

hr {
  margin: 44px 0;
  border: 0;
  border-top: 1px solid var(--border);
}

@media (max-width: 480px) {
  main {
    padding: 24px 18px 40px;
  }

  h1 {
    font-size: 26px;
  }
}