:root {
  color-scheme: light;
  --ink: #1a1a2e;
  --muted: #5b5b6b;
  --accent: #5b3df5;
  --bg: #fafafc;
  --card: #ffffff;
  --border: #e6e6ee;
}

* {
  box-sizing: border-box;
}

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

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

header.page {
  margin-bottom: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  color: var(--accent);
  text-decoration: none;
}

h1 {
  font-size: 28px;
  margin: 20px 0 4px;
}

.effective-date {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 20px;
}

.intro {
  margin-bottom: 32px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin-bottom: 16px;
}

.card h2 {
  font-size: 17px;
  margin: 0 0 8px;
}

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

nav.links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

nav.links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

nav.links a:hover {
  text-decoration: underline;
}

footer.page {
  margin-top: 48px;
  color: var(--muted);
  font-size: 13px;
}

.index-links a {
  display: block;
  padding: 16px 20px;
  margin-bottom: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}

.index-links a:hover {
  border-color: var(--accent);
}