body {
  margin: 0;
  font-family: sans-serif;
  background: #111;
  color: #fff;
}

.masonry-gallery {
  column-count: 3;
  column-gap: 1rem;
  padding: 1rem;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1rem;
  opacity: 0;
  transform: scale(0.95);
  transition: all 0.6s ease;
}

.gallery-item img {
  width: 100%;
  border-radius: 8px;
  display: block;
  box-shadow: 0 4px 10px rgba(0,0,0,0.4);
}

.gallery-item.visible {
  opacity: 1;
  transform: scale(1);
}

@media (max-width: 768px) {
  .masonry-gallery {
    column-count: 2;
  }
}

@media (max-width: 480px) {
  .masonry-gallery {
    column-count: 1;
  }
}