@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.55s ease, transform 0.55s ease;
  }

  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }

  .reveal-stagger > *:nth-child(1) { transition-delay: 0.05s; }
  .reveal-stagger > *:nth-child(2) { transition-delay: 0.12s; }
  .reveal-stagger > *:nth-child(3) { transition-delay: 0.19s; }
  .reveal-stagger > *:nth-child(4) { transition-delay: 0.26s; }
  .reveal-stagger > *:nth-child(5) { transition-delay: 0.33s; }
  .reveal-stagger > *:nth-child(6) { transition-delay: 0.4s; }

  .btn {
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
  }

  .btn:hover {
    transform: translateY(-1px);
  }

  .card-service,
  .card-advantage,
  .card-tech,
  .card-portfolio {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }

  .card-service:hover,
  .card-tech:hover,
  .card-portfolio:hover {
    transform: translateY(-4px);
  }

  .modal.is-open {
    animation: modal-fade 0.2s ease;
  }

  .modal.is-open .modal__dialog {
    animation: modal-pop 0.25s ease;
  }

  @keyframes modal-fade {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  @keyframes modal-pop {
    from { transform: translateY(12px) scale(0.98); opacity: 0; }
    to { transform: none; opacity: 1; }
  }

  .nav-list > li > a {
    transition: background 0.15s ease;
  }

  .carousel__track {
    scroll-behavior: smooth;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}