.card-swap-container {
  position: relative;
  perspective: 900px;
  overflow: visible;
}
.card-swap-card {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 12px;
  border: 1px solid #35322A;
  background: #171511;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
@media (max-width: 768px) {
  .card-swap-container { transform: scale(0.75); }
}