.yt-playlist-wrapper {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.yt-main-player {
  flex: 2 1 640px;
  min-width: 300px;
}
.yt-sidebar {
  flex: 1 1 320px;
  max-height: 480px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.yt-video-thumb {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f8f8f8;
  padding: 8px;
  border-radius: 5px;
  transition: background 0.2s;
}
.yt-video-thumb:hover {
  background: #eee;
}
.yt-video-thumb img {
  width: 120px;
  height: auto;
  border-radius: 3px;
}