.loading {
  opacity: 0;
  visibility: hidden;
  display: flex;
  position: absolute;
  background: rgba(255, 255, 255, 0.8);
  z-index: 9999;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  gap: 10px;
  transition: opacity 0.5s ease, visibility 0.5s ease;

  &.show {
    opacity: 1;
    visibility: visible;
  }

  .bar {
    width: 5px;
    height: 50px;
    border-radius: 100px;
    background: #000;
    animation: wave 1.2s infinite ease-in-out;
  }
  .bar:nth-child(1) {
    animation-delay: 0s;
  }
  .bar:nth-child(2) {
    animation-delay: 0.2s;
  }
  .bar:nth-child(3) {
    animation-delay: 0.4s;
  }
  .bar:nth-child(4) {
    animation-delay: 0.6s;
  }
  .bar:nth-child(5) {
    animation-delay: 0.8s;
  }
}

@keyframes wave {
  0%,
  100% {
    height: 50px;
  }
  50% {
    height: 25px;
  }
}