:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #57534e;
  --border: #e7e5e4;
  --accent: #4f46e5;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09;
    --surface: #1c1917;
    --text: #f5f5f4;
    --muted: #a8a29e;
    --border: #292524;
    --accent: #818cf8;
  }
}

* { box-sizing: border-box; }

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

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

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

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

header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 20px;
  font-size: 0.95rem;
}

nav a:hover { color: var(--text); }

.hero {
  padding: 72px 0 48px;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0;
  max-width: 560px;
}

section { padding: 32px 0; }

h2 {
  font-size: 1.3rem;
  margin: 0 0 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

dl.facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 24px;
  margin: 0;
}

dl.facts dt { color: var(--muted); }
dl.facts dd { margin: 0; }

.policy h1 {
  font-size: 2rem;
  margin: 48px 0 8px;
}

.policy h2 { margin-top: 32px; }

.policy .updated { color: var(--muted); margin-top: 0; }

footer {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

footer a { color: var(--muted); }