/* Skeleton shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg, rgba(255,255,255,0.06) 25%, rgba(255,255,255,0.12) 37%, rgba(255,255,255,0.06) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
}