.centered {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.modal-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  /* transparent-blur class */
  background-color: rgba(255, 255, 255, 0.65);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}