:root {
  color-scheme: light dark;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --border: #dfe3e8;
  --text: #1a2027;
  --text-muted: #5b6472;
  --accent: #8a6d1f;
  --link: #6b4f14;
  --max-width: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0f1e;
    --surface: #0d1117;
    --border: #2d3748;
    --text: #e2e8f0;
    --text-muted: #9aa4b2;
    --accent: #c8a63a;
    --link: #d9bd5f;
  }
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 80px;
}

header.site {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--accent);
  text-decoration: none;
}

nav.pages {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

nav.pages a {
  color: var(--text-muted);
  text-decoration: none;
}

nav.pages a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
}

nav.pages a:hover {
  color: var(--accent);
}

h1 {
  font-size: 28px;
  margin: 24px 0 4px;
  letter-spacing: -0.01em;
}

.updated {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0 0 40px;
}

h2 {
  font-size: 18px;
  margin: 40px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

p, li {
  color: var(--text);
  font-size: 15px;
}

p.lead {
  font-size: 16px;
  color: var(--text-muted);
}

ul {
  padding-left: 20px;
}

li + li {
  margin-top: 6px;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
  margin: 20px 0;
}

.card p:first-child { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

footer {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
}

code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}