:root {
  color-scheme: light dark;
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1a2332;
  --muted: #5b677a;
  --accent: #2563eb;
  --border: #dbe3ef;
  --code-bg: #eef2f8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419;
    --card: #171d26;
    --text: #e8edf5;
    --muted: #9aa7ba;
    --accent: #60a5fa;
    --border: #2a3444;
    --code-bg: #222b38;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

header {
  margin-bottom: 2rem;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  line-height: 1.2;
}

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.card + .card {
  margin-top: 1rem;
}

h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.15rem;
}

h2:first-child {
  margin-top: 0;
}

p, li {
  color: var(--text);
}

ul {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.35rem;
}

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

.lang-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.lang-nav a {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.875rem;
}

.lang-nav a[aria-current="page"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925rem;
  margin: 1rem 0;
}

th, td {
  border: 1px solid var(--border);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

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

footer {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.home-links {
  display: grid;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.home-links a {
  display: block;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  background: var(--card);
}

.home-links a strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.home-links a span {
  color: var(--muted);
  font-size: 0.9rem;
}