/* Only the first existing gallery image is enhanced. No new visible UI. */
.media-viewer { position: relative; }
.media-canvas { display: block; position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; }
.media-ready > .media-canvas { opacity: 1; }
.media-ready > .media-fallback { visibility: hidden; }
.media-failed > .media-fallback { visibility: visible; }
.media-canvas[hidden] { display: none; }
.media-detail > .media-canvas { cursor: grab; touch-action: pan-y; }
.media-detail > .media-canvas:active { cursor: grabbing; }
.media-canvas:focus-visible { outline: 1px solid var(--deep-blue, #222); outline-offset: -2px; }
#shop-detail-action[hidden] { display: none; }