.popup-scroll-fade {
  position: absolute;
  z-index: 3;
  bottom: 0;
  left: 0;
  right: 0;
  height: 30px;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--popup-surface, #1d2025));
}
.popup-scroll-fade[hidden] { display: none; }