/* Paint inside the existing image box, preserving gallery and transition layouts. */
img.oo-image-pending {
  background: linear-gradient(100deg, #efefed 25%, #fafaf8 45%, #efefed 65%);
  background-size: 250% 100%;
  animation: oo-image-shimmer 1.5s ease-in-out infinite;
}
img.oo-image-reveal { animation: oo-image-fade .35s ease-out both; }
@keyframes oo-image-shimmer {
  from { background-position: 100% 0; }
  to { background-position: -100% 0; }
}
@keyframes oo-image-fade { from { opacity: .25; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  img.oo-image-pending { animation: none; background: #efefed; }
  img.oo-image-reveal { animation: none; }
}