:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --link: #0b5fff;
  --border: #e3e3e3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14151a;
    --fg: #e8e8e8;
    --muted: #9a9a9a;
    --link: #6ea8ff;
    --border: #2a2b31;
  }
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
}

header.page-header {
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
}

header.page-header a.home {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

h1 {
  font-size: 1.6rem;
  margin: 0.3rem 0 0.2rem;
}

h2 {
  font-size: 1.15rem;
  margin-top: 2rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9rem;
}

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

ul.doc-list {
  list-style: none;
  padding: 0;
}

ul.doc-list li {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
}

ul.doc-list a {
  font-size: 1.05rem;
  text-decoration: none;
}

ul.doc-list a:hover { text-decoration: underline; }

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}