.pattern-gallery-slide {
  position: relative;
}
.pattern-gallery-loader,
.pattern-lightbox-loader {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.4);
  z-index: 5;
  pointer-events: none;
}
.pattern-gallery-slide.loading .pattern-gallery-loader,
.pattern-lightbox.loading .pattern-lightbox-loader {
  display: flex;
}
.pattern-gallery-loader::after,
.pattern-lightbox-loader::after {
  content: '';
  width: 36px;
  height: 36px;
  border: 3px solid rgba(0, 0, 0, 0.15);
  border-top-color: #555;
  border-radius: 50%;
  animation: gallery-spin 0.7s linear infinite;
}
@keyframes gallery-spin {
  to {
    transform: rotate(360deg);
  }
}