/* ── Base ── */
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; scroll-padding-top: 80px; }
  body { overflow-x: hidden; }
  img { display: block; max-width: 100%; }

  /* ── Scroll reveal (progressive enhancement) ── */
  @media (prefers-reduced-motion: no-preference) {
    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    }
    .reveal.revealed {
      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; }
  }

  /* ── Service card hover ── */
  .service-card {
    transition: background-color 0.3s ease;
  }
  .service-card:hover {
    background-color: #fafafa;
  }

  /* ── Mobile menu open state ── */
  #mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
  }

  /* ── Hamburger animation ── */
  #menu-btn.active #bar1 {
    transform: translateY(4px) rotate(45deg);
  }
  #menu-btn.active #bar2 {
    opacity: 0;
  }
  #menu-btn.active #bar3 {
    transform: translateY(-4px) rotate(-45deg);
  }

  /* ── Form success state ── */
  #form-success.show {
    display: flex;
  }

  /* ── Subtle selection color ── */
  ::selection {
    background: #c9a84c;
    color: #0a1628;
  }