video[data-lazy] {
  background: #f0f0f0;
  min-height: 200px; 
}

video.lazy-loading {
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

video.lazy-loaded {
  opacity: 1;
  transition: opacity 0.3s ease;
}

video.lazy-error {
  background: #ffebee;
  opacity: 0.5;
}