@keyframes sway-right {
  0%   { transform: translateX(0); }
  50%  { transform: translateX(8px); }
  100% { transform: translateX(0); }
}

@keyframes sway-left {
  0%   { transform: translateX(0); }
  50%  { transform: translateX(-8px); }
  100% { transform: translateX(0); }
}

.ak-top-card {
  animation: sway-right 6s ease-in-out infinite;
}

.ak-bottom-card {
  animation: sway-left 6s ease-in-out infinite;
}

@media (max-width: 639px) {
  .ak-top-card,
  .ak-bottom-card {
    animation: none !important;
  }
}