.stack {
  position: fixed;
  /* Inside the editor island's bottom-right corner, clear of the right stripe. */
  right: 78px;
  bottom: calc(var(--h-statusbar) + 16px);
  /* Balloons belong to the main window: modal dialogs cover them, like IDEA. */
  z-index: calc(var(--z-dialog) - 1);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  pointer-events: none;
}
.balloon {
  pointer-events: auto;
  animation: slideIn var(--dur) var(--ease);
}
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(12px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .balloon {
    animation: none;
  }
}
.list {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: auto;
  outline: none;
}
.entry {
  width: 100%;
  flex: none;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  box-shadow: none;
  background: none;
}
.entry:last-child {
  border-bottom: 0;
}