/* The legacy mobile GIF is wide (990 × 360); reserve its actual height. */
@media (max-width: 660px) {
  .popup-session { height: auto; max-height: 90vh; overflow-y: auto; }
  .popup-session .popup__image { height: auto; flex-shrink: 0; }
  .popup-session .popup__image img:only-child { display: block; }
}