#toast {
  position: fixed;
  left: 50%;
  bottom: calc(30px + env(safe-area-inset-bottom, 0px));
  z-index: 12000;
  width: max-content;
  max-width: calc(100% - 40px);
  padding: 12px 20px;
  border: 1px solid var(--border-light);
  background: var(--bg-light);
  color: var(--text-light);
  font: inherit;
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 6px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms;
}
body.dark #toast {background: var(--bg-dark); color: var(--text-dark); border-color: var(--border-dark)}
#toast.is-visible {opacity: 1; visibility: visible; transform: translate(-50%, 0)}
@media (prefers-reduced-motion: reduce) {#toast {transition: none}}