/* Shared gallery thumbnails; video controls are browser-native. */
.ad-lightbox__thumbnails { grid-column: 1 / -1; grid-row: 2; display: flex; justify-self: center; max-width: 100%; gap: var(--ui-space-8); overflow-x: auto; padding: var(--ui-space-4); }
.ad-lightbox__thumbnails[hidden] { display: none; }
.ad-lightbox__thumbnails button { flex: 0 0 72px; width: 72px; height: 56px; padding: 0; overflow: hidden; border: 2px solid transparent; border-radius: var(--ui-radius-11); opacity: .55; background: transparent; cursor: pointer; }
.ad-lightbox__thumbnails button[aria-current="true"], .ad-lightbox__thumbnails button:focus-visible, .ad-lightbox__thumbnails button:hover { opacity: 1; border-color: var(--ui-color-white); }
.ad-lightbox__thumbnails img { display: block; width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 600px) { .ad-lightbox__thumbnails button { flex-basis:60px; width:60px; height:48px; } }