/* ============================================================
   BRIEF #91 Sprint C — Toast undo (stack 1, slide-up bottom-left)
   ZÉRO hex hardcodé. Dark mode pris en charge via tokens.
   ============================================================ */
.undo-toast-host {
  position: fixed;
  left: var(--sp-4);
  bottom: var(--sp-4);
  z-index: var(--z-toast);
  pointer-events: none;
  display: flex;
  flex-direction: column-reverse;
  gap: var(--sp-2);
}

.undo-toast {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  min-width: 260px;
  max-width: 360px;
  background: var(--color-text);
  color: var(--color-bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transform: translateY(20px);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.undo-toast.undo-toast-in {
  transform: translateY(0);
  opacity: 1;
}

.undo-toast.undo-toast-out {
  transform: translateY(20px);
  opacity: 0;
}

.undo-toast-msg {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.undo-toast-btn {
  background: transparent;
  border: 1px solid var(--color-bg-card);
  color: var(--color-bg-card);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semi);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px var(--sp-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  font-family: inherit;
}

.undo-toast-btn:hover {
  background: var(--color-bg-card);
  color: var(--color-text);
}

.undo-toast-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Dark mode : le toast garde un contraste fort (couleurs inversées via tokens
   color-text / color-bg-card). Le toggle body.dark de Complis swap les valeurs
   sémantiques, donc aucune surcharge spécifique requise. */