:root {
  --bg: #f6f8fb;
  --card: #fff;
  --text: #1a1d21;
  --muted: #5c6570;
  --accent: #1565c0;
  --border: #e2e8f0;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: 1rem;
}
header {
  background: linear-gradient(135deg, #1565c0, #0d47a1);
  color: #fff;
  padding: 1.5rem 1.25rem 1.75rem;
}
header h1 { margin: 0 0 0.35rem; font-size: 1.35rem; }
header p { margin: 0; opacity: 0.92; font-size: 0.95rem; }
nav.back {
  padding: 0.75rem 1.25rem;
  background: rgba(0,0,0,0.08);
}
nav.back a {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
}
nav.back a:hover { text-decoration: underline; }
main {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}
.card {
  background: var(--card);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  border: 1px solid var(--border);
}
.card h2 { margin-top: 0; font-size: 1.1rem; color: var(--accent); }
.card ul { margin: 0; padding-left: 1.2rem; }
.card li { margin: 0.35rem 0; }
.card a {
  color: var(--accent);
  font-weight: 600;
}
footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}
article.card h2 { font-size: 1.05rem; margin-top: 1.5rem; }
article.card h2:first-of-type { margin-top: 0; }
article.card table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 0.75rem 0;
}
article.card th, article.card td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.6rem;
  text-align: left;
}
article.card th { background: #f1f5f9; }
.disclaimer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px dashed var(--border);
  font-size: 0.88rem;
  color: var(--muted);
}