/* ---------- Gallery layout ---------- */
.custom-product-gallery-container { display:flex; flex-direction:column; gap:12px; }

/* Featured image full width */
.featured-image-container {
  width:100%;
  height:520px;
  overflow:hidden;
  border-radius:8px;
  background:#f6f6f6;
}
.featured-image { width:100%; height:100%; object-fit:cover; display:block; transition:transform .28s ease; }
.featured-image:hover { transform: scale(1.03); }

/* Initial two thumbnails below featured */
.initial-two-thumbs { display:grid; grid-template-columns: 1fr 1fr; gap:10px; }
.initial-thumb { background:#f6f6f6; padding:6px; border-radius:8px; display:flex; align-items:center; justify-content:center; min-height:160px; overflow:hidden; }
.initial-thumb .thumb-image { width:100%; height:100%; object-fit:cover; display:block; transition:transform .24s ease; }
.initial-thumb .thumb-image:hover { transform: scale(1.04); }

/* Remaining grid (collapsed until Show More) */
.custom-gallery-grid { display:none; grid-template-columns: repeat(2,1fr); gap:10px; max-height:420px; overflow-y:auto; -webkit-overflow-scrolling:touch; }
.custom-gallery-grid.grid-visible { display:grid; }
.custom-gallery-grid::-webkit-scrollbar { width:0; }
.custom-gallery-grid .grid-item { background:#f6f6f6; padding:1px; border-radius:8px; overflow:hidden; }
.grid-thumb { width:100%; height:100%; object-fit:cover; display:block; transition:transform .24s ease; }

/* Show More button */
.show-more-container { display:flex; justify-content:center; margin-top:1