:root {
    --paper: #fbf6ec; --paper-pure: #ffffff; --paper-warm: #f5ecd9;
    --mist: #f8f2e3; --mist-deep: #efe2c4;
    --ink: #1c2640; --ink-soft: #2d3a5a; --ink-deep: #0e1528;
    --accent: #c9621f; --accent-deep: #a44e16; --accent-soft: #fbe3d2;
    --gold: #b7892b; --gold-soft: #f4e6c4;
    --border: #e5d9bf;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-display: 'Fraunces', 'Source Serif 4', Georgia, serif;
    --container: 920px;
  }
  *,*::before,*::after { box-sizing: border-box; }
  body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); line-height: 1.7; -webkit-font-smoothing: antialiased; }
  .container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
  .topbar { padding: 16px 0; border-bottom: 1px solid var(--border); background: var(--paper); }
  .topbar-inner { display: flex; justify-content: space-between; align-items: center; max-width: 1240px; margin: 0 auto; padding: 0 28px; }
  .logo { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; text-decoration: none; color: var(--ink); }
  .logo strong { font-weight: 600; }
  .topbar-nav { display: flex; gap: 22px; font-size: 0.92rem; }
  .topbar-nav a { color: var(--ink-soft); text-decoration: none; }
  .topbar-nav a:hover { color: var(--accent); }
  .breadcrumb { font-size: 0.85rem; color: var(--ink-soft); padding: 14px 0; max-width: 1240px; margin: 0 auto; padding-left: 28px; padding-right: 28px; }
  .breadcrumb a { color: var(--ink); text-decoration: none; }
  .post-header { padding: 30px 0 24px; }
  .post-eyebrow { display: inline-block; padding: 4px 12px; background: var(--accent); color: #fff; border-radius: 999px; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
  .post-header h1 { font-family: var(--font-display); font-size: 2.4rem; line-height: 1.15; margin: 0 0 14px; color: var(--ink); }
  .post-meta { display: flex; gap: 16px; font-size: 0.88rem; color: var(--ink-soft); margin-bottom: 18px; flex-wrap: wrap; }
  .post-meta span { padding: 3px 10px; background: var(--paper-pure); border: 1px solid var(--border); border-radius: 999px; }
  .post-content { padding: 0 0 40px; }
  .post-content h2 { font-family: var(--font-display); font-size: 1.6rem; margin: 36px 0 14px; color: var(--ink); }
  .post-content h3 { font-family: var(--font-display); font-size: 1.25rem; margin: 28px 0 10px; color: var(--ink); }
  .post-content p { margin: 0 0 16px; }
  .post-content ul, .post-content ol { margin: 0 0 16px; padding-left: 24px; }
  .post-content li { margin-bottom: 8px; color: var(--ink-soft); }
  .post-content blockquote { border-left: 4px solid var(--accent); margin: 22px 0; padding: 4px 22px; color: var(--ink-soft); font-style: italic; background: var(--mist); border-radius: 0 8px 8px 0; }
  .post-content table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.93rem; }
  .post-content th { background: var(--paper-warm); padding: 12px 14px; text-align: left; border-bottom: 2px solid var(--accent); font-weight: 700; }
  .post-content td { padding: 11px 14px; border-bottom: 1px solid var(--border); color: var(--ink-soft); }
  .ai-snippet { background: var(--mist); border-left: 4px solid var(--accent); border-radius: 10px; padding: 18px 22px; margin: 22px 0; }
  .ai-snippet-label { font-size: 0.78rem; color: var(--accent-deep); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 6px; }
  .ai-snippet p { margin: 0; }
  .figure { margin: 24px 0; background: var(--paper-pure); border: 1px solid var(--border); border-radius: 12px; padding: 18px; }
  .figure svg { width: 100%; height: auto; }
  .figure-caption { font-size: 0.85rem; color: var(--ink-soft); margin-top: 8px; font-style: italic; }
  .cta-strip { background: var(--mist-deep); border: 1px solid var(--accent); border-left: 4px solid var(--accent); border-radius: 10px; padding: 18px 22px; margin: 28px 0; }
  .cta-strip strong { color: var(--ink); font-family: var(--font-display); font-size: 1.05rem; }
  .cta-strip a.btn { display: inline-block; background: var(--accent); color: #fff; padding: 10px 20px; border-radius: 8px; font-weight: 700; text-decoration: none; margin-top: 8px; }
  .cta-strip a.btn:hover { background: var(--accent-deep); }
  .references { background: var(--mist); border-radius: 10px; padding: 18px 22px; margin: 30px 0; font-size: 0.9rem; }
  .references h3 { margin-top: 0; font-family: var(--font-display); color: var(--ink); }
  .references ol { padding-left: 22px; margin: 8px 0; }
  .references li { margin-bottom: 8px; color: var(--ink-soft); }
  .toc { background: var(--paper-pure); border: 1px solid var(--border); border-radius: 12px; padding: 16px 22px; margin: 22px 0; font-family: var(--font-body); }
  .toc-title { font-size: 0.78rem; color: var(--accent-deep); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 8px; }
  .toc ol { margin: 0; padding-left: 22px; font-size: 0.92rem; }
  .toc a { color: var(--ink); text-decoration: none; }
  .toc a:hover { color: var(--accent); }
  footer { padding: 30px 0; background: var(--ink); color: var(--paper); text-align: center; font-size: 0.88rem; margin-top: 40px; }
  footer a { color: var(--gold-soft); text-decoration: none; }
  @media (max-width: 720px) { .post-header h1 { font-size: 1.8rem; } }

  .medical-reviewer-box { background: linear-gradient(135deg, var(--mist) 0%, var(--paper-warm) 100%); border: 1px solid var(--accent); border-left: 4px solid var(--accent); border-radius: 12px; padding: 16px 22px; margin: 22px 0; display: flex; gap: 16px; align-items: flex-start; flex-wrap: wrap; }
  .reviewer-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; flex-shrink: 0; }
  .reviewer-info { flex: 1; min-width: 240px; }
  .reviewer-label { font-size: 0.72rem; color: var(--accent-deep); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
  .reviewer-name { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--ink); margin: 0; }
  .reviewer-credentials { font-size: 0.85rem; color: var(--ink-soft); margin: 2px 0 0; }
  .reviewer-dates { font-size: 0.82rem; color: var(--ink-soft); margin-top: 6px; font-family: var(--font-mono, monospace); }