/* ── Base ── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; }

  /* ── Navbar scroll state ── */
  #nav.scrolled {
    background: rgba(253, 252, 250, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 12px rgba(45, 87, 45, 0.08);
  }

  /* ── Service cards ── */
  .service-card {
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }
  .service-card:hover {
    transform: translateY(-4px);
  }

  /* ── Scroll reveal (progressive enhancement) ── */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }
  }

  /* Fallback: ensure content is visible even if JS is disabled */
  .reveal { opacity: 1; transform: none; }

  /* ── Mobile menu animation ── */
  #mobileMenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
  }
  #mobileMenu.open {
    max-height: 400px;
    padding: 0.75rem 0;
  }

  /* ── Focus visible ── */
  a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid #4a8c4a;
    outline-offset: 2px;
  }