/* Effet 3D “reveal” propre */
@keyframes mb-logo-reveal {
  0% {
    opacity: 0;
    transform: scale(0.9) rotateX(15deg);
  }
  70% {
    opacity: 1;
    transform: scale(1.03) rotateX(0deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotateX(0deg);
  }
}