/* Light theme — shared rulebook pages */
:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --panel: #ffffff;
  --panel-2: #fafbfc;
  --text: #18181b;
  --text-secondary: #3f3f46;
  --muted: #71717a;
  --line: #e4e4e7;
  --line-soft: #f0f0f2;
  --accent: #0e7490;
  --accent-dim: rgba(14, 116, 144, 0.1);
  --shadow: 0 1px 3px rgba(24, 24, 27, 0.06), 0 8px 24px rgba(24, 24, 27, 0.06);
  --font: "SF Pro Rounded", "Avenir Next Rounded", "Segoe UI", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body.doc-page {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.doc-page .page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 0% 0%, rgba(14, 116, 144, 0.06), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 10%, rgba(113, 37, 255, 0.04), transparent 50%),
    radial-gradient(ellipse 50% 30% at 50% 100%, rgba(74, 196, 50, 0.04), transparent 45%),
    var(--bg);
}

.doc-page .hero {
  padding: 2rem 1.5rem 1.5rem;
}

.doc-page .hero-badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(14, 116, 144, 0.18);
  margin-bottom: 0.75rem;
}

.doc-page .hero h1 {
  margin: 0;
  font-size: clamp(1.75rem, 5vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
}

.doc-page .hero-lead {
  margin: 0.85rem 0 0;
  max-width: 44rem;
  color: var(--muted);
  font-size: 1rem;
}

.doc-page .hero-lead + .hero-lead {
  margin-top: 0.65rem;
}

.doc-page .hero-lead-list {
  margin: 0.65rem 0 0;
  padding-left: 1.25rem;
  max-width: 44rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.doc-page .hero-lead-list li {
  padding: 0.2rem 0;
}

.doc-page .hero-lead-list strong {
  color: var(--text);
}

.doc-page .hero-lead strong {
  color: var(--text);
}

.doc-page .content {
  padding: 0 1.5rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.doc-page .panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.doc-page .panel-head {
  padding: 1.15rem 1.35rem 0.85rem;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}

.doc-page .panel-head h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.doc-page .panel-note {
  margin: 0.3rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.doc-page .table-wrap {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
}

.doc-page .rules-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.doc-page .rules-table thead {
  background: var(--line-soft);
}

.doc-page .rules-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.doc-page .rules-table td {
  padding: 0.95rem 1rem;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  color: var(--text-secondary);
}

.doc-page .rules-table tbody tr:last-child td {
  border-bottom: 0;
}

.doc-page .rules-table tbody tr:hover {
  background: rgba(14, 116, 144, 0.03);
}

.doc-page .rules-table strong {
  color: var(--text);
  font-weight: 650;
}

.doc-page .glossary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  padding: 1.15rem 1.35rem 1.25rem;
}

.doc-page .glossary-card {
  padding: 1rem 1.1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel-2);
}

.doc-page .glossary-card h3 {
  margin: 0 0 0.45rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
}

.doc-page .glossary-card p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.5;
}

.doc-page .example-row {
  margin: 0;
  padding: 0.85rem 1.35rem 1.25rem;
  font-size: 0.86rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  line-height: 1.55;
}

.doc-page .example-row strong {
  color: var(--text);
}

.doc-page .example-row mark {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
  font-style: normal;
  font-weight: 600;
}

.doc-page .example-row a {
  color: var(--accent);
  font-weight: 600;
}

.doc-page .steps {
  margin: 0;
  padding: 1rem 1.35rem 1.25rem 2.5rem;
  list-style: none;
}

.doc-page .steps li {
  position: relative;
  padding: 0.5rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.doc-page .steps li::before {
  content: "";
  position: absolute;
  left: -1.15rem;
  top: 1rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.75;
}

.doc-page .steps strong {
  color: var(--text);
}

.doc-page .steps code {
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: #f4f4f5;
  color: var(--text-secondary);
  font-size: 0.88em;
}

.doc-page .footer {
  padding: 0 1.5rem 2rem;
  text-align: center;
}

.doc-page .footer p {
  margin: 0;
  font-size: 0.78rem;
  color: #a1a1aa;
}

@media (max-width: 640px) {
  .doc-page .hero {
    padding: 0.7rem 0.75rem 0.55rem;
  }

  .doc-page .content {
    gap: 0.65rem;
    padding: 0 0.75rem 1.5rem;
  }

  .doc-page .panel {
    border-radius: 12px;
  }

  .doc-page .panel-head {
    padding: 0.7rem 0.75rem 0.55rem;
  }

  .doc-page .glossary-grid {
    grid-template-columns: 1fr;
    gap: 0.65rem;
    padding: 0.7rem 0.75rem;
  }

  .doc-page .glossary-card {
    padding: 0.75rem 0.8rem;
    border-radius: 10px;
  }

  .doc-page .example-row {
    padding: 0.6rem 0.75rem 0.75rem;
  }

  .doc-page .steps {
    padding: 0.6rem 0.75rem 0.7rem 1.55rem;
  }

  .doc-page .footer {
    padding: 0 0.75rem 1.5rem;
  }

  .doc-page .rules-table {
    font-size: 0.86rem;
  }

  .doc-page .rules-table th,
  .doc-page .rules-table td {
    padding: 0.7rem 0.65rem;
  }
}