:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --card: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --accent: #2d8a4e;
  --border: rgba(0, 0, 0, 0.08);
  --max-width: 720px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --text: #f5f5f7;
    --text-secondary: #98989d;
    --border: rgba(255, 255, 255, 0.12);
  }
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px 48px;
}

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

.site-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}

.meta {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.meta span + span::before {
  content: " · ";
}

.doc-section {
  margin-bottom: 28px;
}

.doc-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.doc-section p {
  margin: 0 0 12px;
}

.doc-section ul,
.doc-section ol {
  margin: 0 0 12px;
  padding-left: 1.25rem;
}

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

.site-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

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

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

/* Landing / marketing */

.hero {
  text-align: center;
  padding: 32px 0 24px;
}

.hero-icon {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  background: linear-gradient(145deg, #3cb371, #2d8a4e);
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.hero h1 {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.03em;
}

.hero .tagline {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin: 0 0 24px;
}

.features {
  display: grid;
  gap: 16px;
  margin: 32px 0;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 8px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin: 0;
}

.cta-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.cta-links a {
  display: block;
  text-align: center;
  padding: 14px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-weight: 500;
  color: var(--text);
}

.cta-links a:hover {
  text-decoration: none;
  border-color: var(--accent);
}

.cta-links a.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Marketing landing sections (h2 blocks in main) */

.hero + main h2 {
  font-size: 1rem;
  font-weight: 600;
  margin: 24px 0 8px;
  padding: 20px 20px 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 16px 16px 0 0;
}

.hero + main h2:first-of-type {
  margin-top: 0;
}

.hero + main h2 + p {
  margin: 0 0 16px;
  padding: 0 20px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 16px 16px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* Language picker */

.lang-picker {
  list-style: none;
  padding: 0;
  margin: 24px 0;
}

.lang-picker li {
  margin-bottom: 12px;
}

.lang-picker a {
  display: block;
  padding: 16px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-weight: 500;
  color: var(--text);
}

.lang-picker a:hover {
  text-decoration: none;
  border-color: var(--accent);
}

@media print {
  body {
    background: #fff;
    color: #000;
  }

  .site-footer .nav-links {
    display: none;
  }
}