/* Below the hero only. Readable first; motion is a progressive enhancement. */
.journey-evolution { position: relative; margin-top: 64px; height: 105svh; min-height: 560px; }
.evolution-stage { position: sticky; top: max(180px, 30svh); padding-block: 32px; }
.evolution-name { display: flex; gap: .16em; font: 700 clamp(48px, 10vw, 140px)/1.2 Arial, Helvetica, sans-serif; letter-spacing: -.07em; }
.evolution-air { color: var(--v-red); }
.evolution-track { height: 1px; margin-top: 40px; background: var(--v-line); overflow: hidden; }
.evolution-track > span { display: block; height: 100%; background: var(--v-red); transform-origin: left; }
.evolution-labels { display: flex; justify-content: space-between; gap: 16px; margin-top: 16px; color: var(--v-muted); font: 10px/1.5 'Courier New', monospace; letter-spacing: .06em; }
.motion-word { display: inline-block; }
.motion-unit { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .12em; margin-bottom: -.12em; }
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    .motion-heading, .motion-copy { view-timeline-name: --reading; view-timeline-axis: block; view-timeline-inset: 0; }
    .motion-heading .motion-word, .motion-copy .motion-word {
      animation: word-settle 1ms linear both;
      animation-timeline: --reading;
      /* Spread the reveal across the viewport, not just the element's entry. */
      animation-range: cover calc(10% + var(--word-progress) * 20%) cover calc(45% + var(--word-progress) * 20%);
    }
    .motion-copy .motion-word { animation-name: word-read; }
    .motion-block {
      animation: block-settle 1ms linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 95%;
    }
    .journey-evolution.motion-story { view-timeline-name: --evolution; view-timeline-axis: block; }
    .motion-story .evolution-air {
      animation: air-arrives 1ms linear both;
      animation-timeline: --evolution;
      animation-range: cover 25% cover 65%;
    }
    .motion-story .evolution-track > span {
      animation: evolution-progress 1ms linear both;
      animation-timeline: --evolution;
      animation-range: cover 25% cover 65%;
    }
  }
}
@keyframes word-settle { from { opacity: .6; transform: translate3d(0, 1.06em, 0) rotate(2deg); } to { opacity: 1; transform: none; } }
@keyframes word-read { from { color: var(--v-muted); transform: translate3d(0, .18em, 0); } to { color: var(--v-ink); transform: none; } }
@keyframes block-settle { from { opacity: 1; transform: translate3d(0, 24px, 0); } to { opacity: 1; transform: none; } }
@keyframes air-arrives { from { opacity: .15; transform: translate3d(-.18em, .12em, 0); } to { opacity: 1; transform: none; } }
@keyframes evolution-progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (max-width: 767px) {
  .journey-evolution { height: 90svh; min-height: 500px; margin-top: 40px; }
  .evolution-stage { top: max(160px, 30svh); }
  .evolution-stage .feature-code, .evolution-labels { font-size: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .journey-evolution { height: auto; min-height: 0; }
  .evolution-stage { position: static; }
  .motion-word, .motion-block, .evolution-air, .evolution-track > span { opacity: 1 !important; transform: none !important; }
  .motion-unit { overflow: visible; }
}