.lobby-edge-blur {
  position: fixed;
  inset: 0;
  z-index: 900;
  pointer-events: none;
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  mask-image: radial-gradient(ellipse farthest-corner at center, transparent 76%, rgba(0,0,0,.15) 84%, rgba(0,0,0,.65) 94%, #000 100%);
  -webkit-mask-image: radial-gradient(ellipse farthest-corner at center, transparent 76%, rgba(0,0,0,.15) 84%, rgba(0,0,0,.65) 94%, #000 100%);
}
.lobby-edge-blur[hidden] { display: none; }
@media (max-width: 600px) {
  .lobby-edge-blur { backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
}