/* Tooltip personnalisé pour dates bloquées */
.custom-tooltip {
  position: absolute;
  background: rgba(255, 0, 0, 0.85);
  color: #fff;
  padding: 3px 6px;
  border-radius: 4px;
  font-size: 12px;
  pointer-events: none;
  z-index: 9999;
  white-space: nowrap;
  transition: opacity 0.2s;
  opacity: 0;
}

.custom-tooltip.show {
  opacity: 1;
}