/* Bouton flottant Support IA (#btn-flottant) — pulsation légère */

#btn-flottant {
  animation: btn-flottant-pulse 2.2s ease-in-out infinite;
  box-shadow: 0 4px 16px rgba(var(--bs-primary-rgb), 0.5);
}

@keyframes btn-flottant-pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 4px 16px rgba(var(--bs-primary-rgb), 0.45);
  }
  50% {
    transform: scale(1.17);
    box-shadow: 0 6px 24px rgba(var(--bs-primary-rgb), 0.7);
  }
}

@media (prefers-reduced-motion: reduce) {
  #btn-flottant {
    animation: none;
    transform: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
  }
}