/* ── Base ── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; -webkit-font-smoothing: antialiased; }
  img { max-width: 100%; display: block; }

  /* ── Header scroll state ── */
  #site-header {
    background: rgba(253, 248, 240, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(16, 185, 129, 0.08);
  }
  #site-header.scrolled {
    box-shadow: 0 4px 24px rgba(6, 78, 59, 0.07);
  }

  /* ── Mobile menu ── */
  #mobile-menu.open { opacity: 1; pointer-events: auto; }
  #mobile-menu.closed { opacity: 0; pointer-events: none; }
  .mobile-link { transition: opacity 0.2s; }

  /* ── Hero floating cards ── */
  .hero-card {
    transform: translateY(0);
    transition: transform 0.35s cubic-bezier(.4,0,.2,1), box-shadow 0.35s ease;
  }
  .hero-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(6, 78, 59, 0.12);
  }

  /* ── Card lift (selection) ── */
  .card-lift {
    transition: transform 0.35s cubic-bezier(.4,0,.2,1), box-shadow 0.35s ease;
  }
  .card-lift:hover {
    transform: translateY(-6px);
  }

  /* ── Scroll reveal (progressive enhancement) ── */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.7s cubic-bezier(.4,0,.2,1), transform 0.7s cubic-bezier(.4,0,.2,1);
    }
    .reveal.revealed {
      opacity: 1;
      transform: translateY(0);
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; }
  }

  /* ── Focus visible ── */
  :focus-visible {
    outline: 2px solid #10b981;
    outline-offset: 2px;
    border-radius: 4px;
  }