* { box-sizing: border-box; }
body { font-family: sans-serif; }

.galleria-masonry {
  width: 100vw;
  max-width: 100vw;
  margin-left: 50%;
  transform: translateX(-50%);
  padding: 0 0 2rem 0;
}
.galleria-masonry:after {
  content: '';
  display: block;
  clear: both;
}
.galleria-masonry-item {
  width: 20%;
  margin-bottom: 8px;
  float: left;
  padding: 0 4px;
  transition: transform 0.2s;
}
.galleria-masonry-item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  background: none;
  border: none;
  transition: transform 0.3s, box-shadow 0.3s;
}
.galleria-masonry-item:hover img {
  transform: scale(1.04);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
@media (max-width: 1200px) {
  .galleria-masonry-item { width: 25%; }
}
@media (max-width: 900px) {
  .galleria-masonry-item { width: 33.333%; }
}
@media (max-width: 600px) {
  .galleria-masonry-item { width: 50%; padding: 0 6px; }
}
@media (max-width: 400px) {
  .galleria-masonry-item { width: 100%; padding: 0; }
}