:root {
  --brand: #FFC800;
  --text: #1a1a1a;
  --muted: #666;
  --border: #e5e5e5;
  --bg: #fafaf7;
  --card: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

header.doc-header {
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 4px solid var(--brand);
}

header.doc-header h1 {
  font-size: 36px;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

header.doc-header .meta {
  color: var(--muted);
  font-size: 14px;
  font-style: italic;
}

.back-link {
  display: inline-block;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
}

.back-link:hover {
  color: var(--text);
}

h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 48px 0 16px;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 32px 0 12px;
}

p {
  margin: 0 0 16px;
}

ul, ol {
  margin: 0 0 16px;
  padding-left: 24px;
}

li {
  margin-bottom: 6px;
}

a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--brand);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  transition: background 0.15s ease;
}

a:hover {
  background: var(--brand);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 24px;
  font-size: 15px;
}

th, td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  background: rgba(255, 200, 0, 0.12);
  font-weight: 600;
}

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

footer.doc-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 14px;
  color: var(--muted);
}

footer.doc-footer a {
  color: var(--muted);
}

/* Home page */
.home-intro {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 32px;
}

.home-cards {
  display: grid;
  gap: 16px;
  margin-top: 32px;
}

.home-card {
  display: block;
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.home-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  background: var(--card);
  border-color: var(--brand);
}

.home-card h2 {
  margin: 0 0 8px;
  font-size: 22px;
  border: none;
}

.home-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

@media (max-width: 600px) {
  .container {
    padding: 32px 20px 64px;
  }
  header.doc-header h1 {
    font-size: 28px;
  }
  h2 {
    font-size: 20px;
  }
  table {
    font-size: 14px;
  }
  th, td {
    padding: 10px 12px;
  }
}