:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --text: #1a1a1a;
  --text-secondary: #555555;
  --link: #208AEF;
  --border: #e5e5e5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d0d;
    --text: #f0f0f0;
    --text-secondary: #a0a0a0;
    --link: #5AB2FF;
    --border: #2a2a2a;
  }
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

h1 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
}

h2 {
  font-size: 1.15rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.updated {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

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

nav {
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

nav a {
  margin-right: 1rem;
}

ul {
  padding-left: 1.25rem;
}