.loader-container {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  width: 100vw;
  height: 100vh;
  background-color: #e5e5f7;
  background-image: radial-gradient(#444cf7 0.65px, #e5e5f7 0.65px);
  background-size: 13px 13px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: auto;
}

/* HTML: <div class="loader"></div> */
.loader {
  width: 35px;
  aspect-ratio: 1;
  --_g: no-repeat radial-gradient(farthest-side, #000 94%, #0000);
  background: var(--_g) 0 0, var(--_g) 100% 0, var(--_g) 100% 100%,
    var(--_g) 0 100%;
  background-size: 40% 40%;
  animation: l38 0.5s infinite;
}
@keyframes l38 {
  100% {
    background-position: 100% 0, 100% 100%, 0 100%, 0 0;
  }
}

.fade-out {
  animation: fade-out 0.5s ease-in-out forwards;
}
@keyframes fade-out {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    visibility: hidden;
  }
}