:root {
  --navy: #0b1f3a;
  --teal: #0e7c7b;
  --gold: #c99a2e;
  --slate: #4a5568;
  --bg: #ffffff;
  --fg: #1a2233;
  --muted: #4a5568;
  --card: #f5f7fa;
  --border: #e2e8f0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1220;
    --fg: #e8ecf3;
    --muted: #a7b0c0;
    --card: #121a2c;
    --border: #22304a;
  }
}

* { box-sizing: border-box; }

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

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

header.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
}

header.brand img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
}

header.brand h1 {
  font-size: 1.3rem;
  margin: 0;
}

h1, h2 { color: var(--navy); }
@media (prefers-color-scheme: dark) {
  h1, h2 { color: var(--fg); }
}

h2 {
  font-size: 1.05rem;
  margin-top: 2em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.muted { color: var(--muted); font-size: 0.9rem; }

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 12px 0;
}

.links a {
  display: inline-block;
  margin-right: 18px;
}

footer {
  margin-top: 48px;
  font-size: 0.85rem;
  color: var(--muted);
}