@keyframes spinCube {
  from { transform: rotateX(0) rotateY(0); }
  to   { transform: rotateX(360deg) rotateY(360deg); }
}
.animate-spinCube {
  animation: spinCube 1.5s infinite linear;
  transform-style: preserve-3d;
}

@keyframes flipCard {
  0%   { transform: perspective(200px) rotateY(0deg); }
  50%  { transform: perspective(200px) rotateY(180deg); }
  100% { transform: perspective(200px) rotateY(360deg); }
}
.animate-flipCard {
  animation: flipCard 1.2s infinite linear;
  transform-style: preserve-3d;
}

/* dst... (bisa tambahkan bounce3d, spinRings, dll) */