body {
  font-family: sans-serif;
  background: #111;
  color: white;
  text-align: center;
  margin: 0;
  padding: 20px;
}

video {
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
  margin-bottom: 20px;
  max-width: 100%;
}

.video-thumbnails {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
  max-width: 900px;
  margin: 0 auto;
}

.video-thumbnails video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-thumbnails video:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(255,0,0,0.6);
}

.back-link a {
  display: inline-block;
  margin-top: 30px;
  padding: 10px 20px;
  background: #444;
  color: white;
  text-decoration: none;
  border-radius: 6px;
}

.back-link a:hover {
  background: #666;
}