/* Bouton de Nexia */
#nexia-chatbox {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  background-color: #ffffff;
  color: #333333;
  padding: 12px 14px;
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  user-select: none;
  font-size: 20px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Effet au survol */
#nexia-chatbox:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* Apparition douce si besoin */
#nexia-chatbox.show {
  opacity: 1;
  transition: opacity 0.3s ease-in-out;
}

#nexia-chatbox.hidden {
  opacity: 0;
  pointer-events: none;
}