:root {
  --bg: #f7faff;
  --card: #ffffff;
  --text: #0a1626;
  --muted: #5b6b80;
  --primary: #0a6bbf;
  --primary-soft: #e5f1fb;
  --border: #e3eaf2;
  --radius: 16px;
  --max-width: 760px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px 80px;
}

header.site {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

header.site .logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, #2d8fd5, #0a6bbf);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
}

header.site h1 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.3px;
}

header.site .subtitle {
  color: var(--muted);
  font-size: 14px;
  margin-top: 2px;
}

h1, h2, h3 {
  letter-spacing: -0.5px;
  line-height: 1.25;
}

h1.page-title {
  font-size: 32px;
  margin: 0 0 8px;
}

.page-subtitle {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 40px;
}

h2 {
  font-size: 20px;
  margin: 40px 0 12px;
}

h3 {
  font-size: 16px;
  margin: 24px 0 8px;
  color: var(--muted);
}

p, li {
  margin: 8px 0;
}

ul {
  padding-left: 22px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin: 16px 0;
}

.callout {
  background: var(--primary-soft);
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  padding: 16px 20px;
  margin: 24px 0;
}

.callout p { margin: 0; }

.muted { color: var(--muted); font-size: 14px; }

footer.site {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  color: var(--muted);
  font-size: 14px;
}

footer.site nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.cards .card {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cards .card h3 {
  color: var(--text);
  font-size: 17px;
  margin: 0;
}

.cards .card p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  h1.page-title { font-size: 26px; }
  .container { padding-top: 24px; }
}