.bg-wrapper {
  position: fixed;
  width: 100%;
  height: 100%;
  overflow: hidden;
  top: 0;
  left: 0;
  z-index: -1;
  opacity: 0.64;
}

.bg-layer {
  position: absolute;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.05);
  transition:
    opacity 1.5s ease-in-out,
    transform 1.5s ease-in-out,
    filter 1.5s ease-in-out;
  filter: blur(2px);
  z-index: 0;
}

.bg-layer.active {
  opacity: 1;
  transform: scale(1);
  filter: blur(0px);
  z-index: 1;
}