/* ─── Toast notification ─── */
#add-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 20px;
  font-size: .78rem;
  font-weight: 600;
  color: var(--text);
  box-shadow: 0 8px 32px rgba(0, 0, 0, .4);
  z-index: 3000;
  transition: transform .3s ease, opacity .3s ease;
  opacity: 0;
  pointer-events: none;
}
#add-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}