:root {
  --primary: #52aebc;
  --primary-dark: #2a8e9e;
  --text: #1a1a1a;
  --text-muted: #5f6368;
  --border: #e0e0e0;
  --bg: #ffffff;
  --bg-soft: #f7fbfc;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-soft);
}

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

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}

.site-header .container {
  padding-top: 0;
  padding-bottom: 0;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-name {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.brand-tagline {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  margin-top: 24px;
}

.page-title {
  margin: 0 0 8px;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
}

.last-updated {
  margin: 0 0 24px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.section {
  margin-bottom: 28px;
}

.section:last-child {
  margin-bottom: 0;
}

.section-heading {
  margin: 0 0 8px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.section-body {
  margin: 0;
  color: var(--text);
  white-space: pre-line;
}

.section-body ul {
  margin: 8px 0 0;
  padding-left: 1.25rem;
}

.section-body li {
  margin-bottom: 6px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-top: 16px;
}

.nav-links a {
  font-weight: 500;
}

.home-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.home-links li {
  border-bottom: 1px solid var(--border);
}

.home-links li:last-child {
  border-bottom: none;
}

.home-links a {
  display: block;
  padding: 16px 0;
  font-size: 1.05rem;
  font-weight: 600;
}

.home-links span {
  display: block;
  margin-top: 4px;
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-muted);
}

.site-footer {
  text-align: center;
  padding: 24px 20px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--primary-dark);
}

@media (min-width: 640px) {
  .container {
    padding: 32px 24px 64px;
  }

  .card {
    padding: 36px 32px;
  }
}