.conteneur {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #25d366;
  color: var(--blanc);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.whatsapp:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.whatsapp svg {
  width: 28px;
  height: 28px;
}

.haut {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--vert-fonce);
  color: var(--blanc);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  animation: apparitionHaut 0.2s ease;
  transition: background-color 0.2s ease;
}

@keyframes apparitionHaut {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.haut:hover {
  background: var(--vert-moyen);
}

.haut svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 640px) {
  .conteneur {
    right: 16px;
    bottom: 16px;
  }
}