.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
}

.gallery-grid .item {
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.gallery-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
  cursor: pointer;
}

.gallery-grid img:hover {
  transform: scale(1.2);
}