/* ── Base ── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { margin: 0; }
  img { max-width: 100%; height: auto; display: block; }
  a { text-decoration: none; }
  button { cursor: pointer; border: none; background: none; font-family: inherit; }
  input, select, textarea { font-family: inherit; font-size: inherit; }

  /* ── Scroll reveal ── */
  .reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .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; }

  /* ── Nav scroll state ── */
  #site-header.scrolled {
    background: rgba(10, 31, 63, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
  }
  #site-header.scrolled .nav-link { color: rgba(255,255,255,0.9); }

  /* ── Service cards ── */
  .service-card {
    position: relative;
    overflow: hidden;
  }
  .service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #D4A84B, #E8C060);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    border-radius: 3px 3px 0 0;
  }
  .service-card:hover::after {
    transform: scaleX(1);
  }

  /* ── Testimonial cards ── */
  .testimonial-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(10, 31, 63, 0.1) !important;
  }

  /* ── Mobile menu animation ── */
  #mobile-menu {
    animation: slideDown 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  }
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* ── Mobile link hover ── */
  .mobile-link { border-radius: 8px; padding-left: 12px; margin-left: -12px; }
  .mobile-link:hover { background: rgba(255,255,255,0.05); }

  /* ── Form select arrow ── */
  select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%239CA3AF' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
  }

  /* ── Reduced motion ── */
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .service-card::after { transition: none; }
    .service-card:hover::after { transform: scaleX(1); }
    .service-card .group:hover { transform: none; }
    .service-card .group:hover > div { transform: none; }
    img { transition: none; }
  }