/* Lightweight image load animation: blur-up + fade-in */
img.lazy-animate {
  filter: blur(12px);
  transform: scale(1.02);
  opacity: 0.7;
  transition: filter 420ms ease, transform 420ms ease, opacity 320ms ease;
  will-change: filter, transform, opacity;
}

img.lazy-animate.is-loaded {
  filter: blur(0);
  transform: none;
  opacity: 1;
}

/* Optional shimmer background for containers while images load */
.shimmer-bg {
  position: relative;
  background-color: #f3f3f3;
  overflow: hidden;
}
.shimmer-bg::after {
  content: "";
  position: absolute;
  top: 0; left: -150%;
  height: 100%; width: 150%;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.6) 50%, rgba(255,255,255,0) 100%);
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  0% { left: -150%; }
  100% { left: 100%; }
}