@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    transform: translateY(36px);
    opacity: 0;
    transition: transform 780ms var(--ease), opacity 780ms var(--ease), clip-path 900ms var(--ease);
  }

  .js .reveal[data-reveal="left"] {
    transform: translateX(-42px);
  }

  .js .reveal[data-reveal="right"] {
    transform: translateX(42px);
  }

  .js .reveal.is-visible {
    transform: translate3d(0, 0, 0);
    opacity: 1;
  }

  .js .stagger > * {
    transition-delay: calc(var(--stagger-index, 0) * 80ms);
  }

  .hero-component .detail {
    animation: detail-pulse 4s ease-in-out infinite alternate;
  }

  .js .component-shot.reveal {
    clip-path: none;
  }

  .js .component-shot.reveal .component-shot__media {
    clip-path: inset(0 0 100% 0);
    transition: clip-path 900ms var(--ease);
  }

  .js .component-shot:nth-child(even).reveal .component-shot__media {
    clip-path: inset(100% 0 0 0);
  }

  .js .component-shot.reveal.is-visible .component-shot__media {
    clip-path: inset(0 0 0 0);
  }

  .js .split-feature__media.reveal {
    clip-path: inset(0 18% 0 0);
  }

  .js .split-feature__media.reveal.is-visible {
    clip-path: inset(0 0 0 0);
  }

  .js .split-feature__media.reveal img {
    transform: scale(1.08);
    transition: transform 1.2s var(--ease);
  }

  .js .split-feature__media.reveal.is-visible img {
    transform: scale(1);
  }

  .scroll-cue::after {
    animation: scroll-line 2.2s ease-in-out infinite;
    transform-origin: top;
  }

  .operation-item::after {
    transition: transform 520ms var(--ease), border-color 520ms var(--ease);
  }

  .operation-item:hover::after {
    transform: scale(1.35);
    border-color: rgba(10, 61, 120, 0.36);
  }

  .machine-item {
    animation: machine-enter 380ms var(--ease) both;
    animation-delay: calc(var(--item-index, 0) * 35ms);
  }

  .story-phase__media {
    transition: transform 680ms var(--ease), border-color 680ms var(--ease);
  }

  .story-phase.is-active .story-phase__media {
    transform: translateY(-8px);
    border-color: rgba(33, 182, 255, 0.6);
  }

  @keyframes dash-flow {
    to { stroke-dashoffset: -240; }
  }

  @keyframes detail-pulse {
    from { opacity: 0.45; }
    to { opacity: 1; }
  }

  @keyframes scroll-line {
    0%, 100% { transform: scaleY(0.2); opacity: 0.4; }
    50% { transform: scaleY(1); opacity: 1; }
  }

  @keyframes machine-enter {
    from { transform: translateY(15px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }

  @keyframes year-reveal {
    from { clip-path: inset(0 0 100% 0); transform: translateY(24px); opacity: 0; }
    to { clip-path: inset(0 0 0 0); transform: translateY(0); opacity: 1; }
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .home-hero {
    height: 100vh;
    min-height: 720px;
  }

  .hero-stage {
    position: relative;
  }

  .hero-component-wrap {
    transform: none !important;
  }

  .hero-component .metal-volume { opacity: 0.95; }
  .hero-component .metal-surface { opacity: 0.92; }
  .hero-component .metal-highlight { opacity: 0.78; }
  .hero-component .machined-holes { opacity: 1; }

  .component-shot img {
    transform: scale(1.04) !important;
  }

  .js .history-timeline {
    height: auto;
  }

  .js .history-timeline__sticky {
    position: relative;
    height: auto;
    overflow: visible;
  }

  .js .history-track {
    width: auto;
    height: auto;
    transform: none !important;
    grid-template-columns: repeat(2, 1fr);
  }

  .js .history-panel {
    min-height: 620px;
    padding-top: 80px;
  }
}