body[data-lab-route="atlas-motion"] .atlas-motion-page {
  overflow-x: hidden;
}

body[data-lab-route="atlas-motion"] .atlas-motion-intro h1 span {
  color: var(--accent);
  font-size: .62em;
  letter-spacing: -.02em;
}

body[data-lab-route="atlas-motion"] .atlas-motion-stage {
  padding-top: 48px;
}

.atlas-motion-player {
  margin: 0;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-1);
}

.atlas-motion-player video {
  display: block;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  background: #050507;
  border: 1px solid var(--border-hi);
}

.atlas-motion-player figcaption {
  max-width: 720px;
  margin: 14px auto 0;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.7;
}

.atlas-motion-facts {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(17, 17, 24, .72);
}

.atlas-motion-facts dl,
.atlas-motion-record dl {
  margin: 0;
}

.atlas-motion-facts dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.atlas-motion-facts dl > div,
.atlas-motion-record dl > div {
  min-width: 0;
  padding: 18px 20px;
  border-top: 1px solid var(--border);
}

.atlas-motion-facts dl > div:nth-child(-n + 3) {
  border-top: 0;
}

.atlas-motion-facts dt,
.atlas-motion-record dt {
  margin-bottom: 8px;
  color: var(--text-faint);
  font-size: 10px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.atlas-motion-facts dd,
.atlas-motion-record dd {
  margin: 0;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.atlas-motion-sequence {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: motion-step;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--border);
  overflow: hidden;
}

.atlas-motion-sequence li {
  position: relative;
  min-width: 0;
  padding: 22px 24px 22px 72px;
  background: var(--bg-1);
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}

.atlas-motion-sequence li::before {
  position: absolute;
  top: 22px;
  left: 24px;
  color: var(--accent);
  content: counter(motion-step, decimal-leading-zero);
  counter-increment: motion-step;
  font-size: 12px;
  letter-spacing: .08em;
}

.atlas-motion-sequence strong,
.atlas-motion-determinism h3,
.atlas-motion-record h3 {
  color: var(--text);
}

.atlas-motion-sequence-note {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--text-faint);
  font-size: 13px;
  line-height: 1.7;
}

.atlas-motion-provenance-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.atlas-motion-record {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-1);
  overflow: hidden;
}

.atlas-motion-record h3 {
  margin: 0;
  padding: 20px 20px 16px;
  font-size: 16px;
  font-weight: 500;
}

.atlas-motion-record dl > div:first-child {
  border-top: 1px solid var(--border);
}

.atlas-motion-determinism {
  max-width: 860px;
  margin-top: 16px;
  padding: 24px;
  border-left: 2px solid var(--accent);
  background: rgba(245, 166, 35, .06);
}

.atlas-motion-determinism h3 {
  margin: 0 0 10px;
  font-size: 16px;
  font-weight: 500;
}

.atlas-motion-determinism p,
.atlas-motion-boundary p {
  max-width: 720px;
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}

.atlas-motion-boundary {
  border-bottom: 0;
}

.atlas-motion-boundary ul {
  display: grid;
  gap: 12px;
  max-width: 860px;
  margin: 0 0 20px;
  padding-left: 22px;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.8;
}

.atlas-motion-noscript {
  width: min(calc(100% - 48px), 1180px);
  margin: 24px auto;
  padding: 16px 20px;
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .atlas-motion-facts dl,
  .atlas-motion-provenance-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .atlas-motion-facts dl > div:nth-child(3) {
    border-top: 1px solid var(--border);
  }

  .atlas-motion-facts dl > div:nth-child(-n + 2) {
    border-top: 0;
  }
}

@media (max-width: 620px) {
  .atlas-motion-player {
    padding: 8px;
  }

  .atlas-motion-facts dl,
  .atlas-motion-provenance-grid {
    grid-template-columns: 1fr;
  }

  .atlas-motion-facts dl > div,
  .atlas-motion-facts dl > div:nth-child(3),
  .atlas-motion-record dl > div {
    border-top: 1px solid var(--border);
  }

  .atlas-motion-facts dl > div:first-child,
  .atlas-motion-record dl > div:first-child {
    border-top: 0;
  }

  .atlas-motion-sequence li {
    padding: 20px 18px 20px 58px;
  }

  .atlas-motion-sequence li::before {
    top: 20px;
    left: 18px;
  }

  .atlas-motion-determinism {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body[data-lab-route="atlas-motion"] *,
  body[data-lab-route="atlas-motion"] *::before,
  body[data-lab-route="atlas-motion"] *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}