* { box-sizing: border-box; }
  html, body { margin: 0; padding: 0; background: var(--surface-page); }
  body { font-family: var(--font-body); }
  a { color: var(--text-accent); text-decoration: none; }
  a:hover { color: var(--blue-600); }
  img { max-width: 100%; display: block; }
  section[id] { scroll-margin-top: 84px; }

  /* HOME HEADER (anchor-link variant — see 01-header-component.md §5) */
  .site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,0.82); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-subtle); }
  .site-header .bar { max-width: 1160px; margin: 0 auto; padding: 12px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
  .site-header .logo { display: flex; align-items: center; gap: 10px; }
  .site-header .wordmark { font-family: var(--font-display); font-weight: 700; font-size: 18px; letter-spacing: -0.02em; color: var(--text-primary); }
  .site-header .nav-desktop { display: flex; align-items: center; gap: 28px; }
  .site-header .nav-desktop a { font-family: var(--font-body); font-weight: 500; font-size: 14.5px; color: var(--text-secondary); transition: color 0.2s ease; }
  .site-header .nav-desktop a:hover { color: var(--blue-600); }
  .site-header .nav-burger { display: none; align-items: center; justify-content: center; width: 42px; height: 42px; border: 1px solid var(--border-subtle); background: var(--white); border-radius: 10px; cursor: pointer; color: var(--text-primary); }

  @media (max-width: 900px) {
    .g-2, .g-3, .g-ba { grid-template-columns: 1fr !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .footer-grid { grid-template-columns: 1fr 1fr !important; }
    .ba-arrow { transform: rotate(90deg); margin: 6px auto; }
    .divided > div { border-left: none !important; border-top: 1px solid var(--border-subtle) !important; }
    .divided > div:first-child { border-top: none !important; }
  }
  @media (max-width: 720px) {
    .nav-desktop { display: none !important; }
    .nav-burger { display: inline-flex !important; }
    .stats-grid { grid-template-columns: 1fr 1fr !important; }
    .footer-grid { grid-template-columns: 1fr !important; }
    .hero-pad { padding-left: 22px !important; padding-right: 22px !important; padding-top: 44px !important; }
  }

  /* Case studies: 4-up grid */
  @media (max-width: 1080px) {
    .g-4 { grid-template-columns: repeat(2, 1fr) !important; }
  }
  @media (max-width: 640px) {
    .g-4 { grid-template-columns: 1fr !important; }
  }