/* Desktop introductions retain each sentence as a line when space allows. */
@media (min-width: 960px) {
  #gallery .gallery-heading,
  #materials .section-heading {
    flex-wrap: wrap;
    gap: 22px 36px;
  }

  #gallery .gallery-heading > p,
  #materials .section-heading > p {
    flex: 0 0 auto;
    width: max-content;
    max-width: 100%;
  }

  /* Grow the reference in place; the model and controls keep their layout. */
  #materials .lab-reference {
    width: clamp(144px, 10vw, 168px);
    pointer-events: auto;
    transition: width 240ms cubic-bezier(.2, .65, .3, 1);
  }

  #materials .lab-reference img {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
    object-fit: contain;
    padding: 0;
    border: 1px solid rgba(206, 188, 152, .42);
    border-radius: 4px;
    background: #191c1b;
    box-shadow: 0 6px 22px rgba(0, 0, 0, .18);
    transition: border-color 180ms, box-shadow 240ms;
  }

  #materials .lab-reference:hover,
  #materials .lab-reference:focus-visible {
    width: clamp(216px, 15vw, 252px);
  }

  #materials .lab-reference:hover img,
  #materials .lab-reference:focus-visible img {
    border-color: rgba(206, 188, 152, .72);
    box-shadow: 0 12px 36px rgba(0, 0, 0, .3);
  }

  #materials .lab-reference:focus-visible {
    outline: 1px solid var(--gold);
    outline-offset: 6px;
    border-radius: 4px;
  }

  #materials .lab-gesture {
    max-width: calc(100% - clamp(144px, 10vw, 168px) - 80px);
    transition: opacity 160ms;
  }

  #materials .lab-viewport:has(.lab-reference:hover) .lab-gesture,
  #materials .lab-viewport:has(.lab-reference:focus-visible) .lab-gesture {
    opacity: 0;
  }
}

@media (min-width: 960px) and (prefers-reduced-motion: reduce) {
  #materials .lab-reference,
  #materials .lab-reference img,
  #materials .lab-gesture {
    transition: none;
  }
}