:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #666666;
  --link: #2563eb;
  --border: #e5e5e5;
  --card-bg: #fafafa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14151a;
    --fg: #e8e8e8;
    --muted: #9a9a9a;
    --link: #6ea8fe;
    --border: #2a2b31;
    --card-bg: #1c1d23;
  }
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

h1 {
  font-size: 1.7rem;
  margin: 0 0 6px;
}

h2 {
  font-size: 1.25rem;
  margin: 2em 0 0.6em;
  border-top: 1px solid var(--border);
  padding-top: 1em;
}

h1 + p.subtitle {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: 2em;
}

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

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
}

th, td {
  text-align: left;
  padding: 8px 12px;
  border: 1px solid var(--border);
}

th {
  background: var(--card-bg);
}

.doc-list {
  list-style: none;
  padding: 0;
  margin: 1.5em 0;
}

.doc-list li {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  background: var(--card-bg);
}

.doc-list a {
  display: block;
  padding: 14px 18px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 500;
}

.doc-list a:hover {
  color: var(--link);
}

.back-link {
  display: inline-block;
  margin-bottom: 24px;
  font-size: 0.9rem;
  color: var(--muted);
  text-decoration: none;
}

.back-link:hover {
  color: var(--link);
}

footer {
  margin-top: 3em;
  padding-top: 1.5em;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}