.video-box {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  background: #000; /* fallback background */
}

.video-box:hover {
  transform: scale(1.02);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
}

.video-box iframe {
  border-radius: 0; /* not needed, handled by parent */
}