/**
 * Styles pour le Lazy Loading des Images
 */

/* Image en cours de chargement */
img.lazy-loading {
  opacity: 0.5;
  filter: blur(5px);
  transition: opacity 0.3s, filter 0.3s;
  background-color: #f0f0f0;
  background-image: 
    linear-gradient(90deg, #f0f0f0 0px, #e0e0e0 40px, #f0f0f0 80px);
  background-size: 200px 100%;
  animation: shimmer 1.5s infinite;
}

/* Image chargée */
img.lazy-loaded {
  opacity: 1;
  filter: blur(0);
  transition: opacity 0.3s, filter 0.3s;
}

/* Image en erreur */
img.lazy-error {
  opacity: 0.3;
  background-color: #fee;
  border: 1px dashed #fcc;
}

/* Animation shimmer (effet de chargement) */
@keyframes shimmer {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

/* Skeleton loader pour les images */
.lazy-skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}