:root {
  --bg: #ffffff;
  --surface: #f4f6f9;
  --text: #11181c;
  --muted: #5b6670;
  --accent: #208aef;
  --line: #e3e7ec;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1214;
    --surface: #1a1f23;
    --text: #eceff1;
    --muted: #9ba5ad;
    --accent: #4aa3f5;
    --line: #2a3137;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

header {
  border-bottom: 1px solid var(--line);
}

nav,
main,
footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 20px;
  min-height: 60px;
  padding-top: 10px;
  padding-bottom: 10px;
}

nav .brand {
  font-weight: 700;
  color: var(--text);
  margin-right: auto;
}

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

nav a[aria-current='page'],
nav a:hover {
  color: var(--accent);
}

main {
  padding-top: 32px;
  padding-bottom: 48px;
}

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 8px;
}

h2 {
  font-size: 1.25rem;
  margin: 36px 0 8px;
}

h3 {
  font-size: 1.05rem;
  margin: 24px 0 4px;
}

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

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  margin-top: 0;
}

.updated {
  color: var(--muted);
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 20px 0;
}

.card p {
  margin: 0;
}

.links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 28px 0;
}

.links a {
  display: block;
  background: var(--surface);
  border-radius: 14px;
  padding: 16px 20px;
  text-decoration: none;
  color: var(--text);
}

.links a strong {
  display: block;
  color: var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.95rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
}

.table-wrap {
  overflow-x: auto;
}

footer {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  padding-bottom: 40px;
  color: var(--muted);
  font-size: 0.9rem;
}