/* Responsive adjustments for medium-sized screens (<= 900px width) */
.gallery-grid {
    width: 98vw;                     /* use almost full viewport width for grid */
  }
  .thumb {
    width: 70px;
    height: 70px;
    transform: scale(1.5);           /* maintain 150% scale on smaller thumbs */
  }
  .thumb:hover {
    transform: scale(1.59);
  }
  .gallery-container {
  overflow: visible;
}