.card-media {
  position: relative;
  background-color: #f0f2f5; /* Light gray base */
  overflow: hidden;
}

.card-media .media-image {
  opacity: 0;
  transition: opacity 0.4s ease-in-out;
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
}

.card-media .media-image.loaded {
  opacity: 1;
}

.card-media .media-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(90deg, #f0f2f5 25%, #e0e4eb 50%, #f0f2f5 75%);
  background-size: 200% 100%;
  animation: pulse-loading 1.5s infinite linear;
  z-index: 1;
  transition: opacity 0.4s ease-in-out;
  color: #a0aec0;
}

.card-media .media-placeholder svg {
  width: 32px;
  height: 32px;
  opacity: 0.5;
}

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

.infinite-scroll-trigger {
  width: 100%;
  padding: 2rem 0;
  text-align: center;
  display: none; /* Block when active */
}

.infinite-scroll-trigger .spinner {
  display: inline-block;
  width: 30px;
  height: 30px;
  border: 3px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top-color: var(--primary, #0a1f7a);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}