/* Instagram styling */
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html, body { 
      height: 100%; 
      overflow: hidden; 
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; 
      background: linear-gradient(135deg, #4facfe 0%, #B8E0F0 100%);
      /* #fafafa; */
    }

    .action-icon.liked {
      color: #ed4956;
    }

    h1 {
      position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
      z-index: 1000; color: #262626; font-weight: 600; font-size: 24px;
    }
    #feed-container {
      height: 100vh; width: 100vw; overflow-y: scroll;
      scroll-snap-type: y mandatory; scroll-behavior: smooth;
      background: #fafafa;
    }
    .video-post {
      height: 100vh; width: 100vw; position: relative;
      scroll-snap-align: start; scroll-snap-stop: always;
    }
    .player-container {
      width: 390px; height: 640px; position: absolute;
      top: 50%; left: 50%; transform: translate(-50%, -50%);
      border-radius: 12px; overflow: hidden; box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    }
    .video-overlay {
      position: absolute; bottom: 0; left: 0; right: 0;
      background: linear-gradient(transparent, rgba(0,0,0,0.8));
      color: white; padding: 40px 30px 30px;
    }
    .video-info .author { font-weight: 600; font-size: 16px; margin-bottom: 4px; }
    .video-info .title { font-size: 14px; line-height: 1.4; opacity: 0.9; }
    .video-actions {
      position: absolute; bottom: 30px; right: 30px;
      display: flex; flex-direction: column; gap: 20px;
    }
    .video-actions .action-icon {
      font-size: 28px !important; color: white !important; cursor: pointer !important;
      text-shadow: 0 1px 4px rgba(0,0,0,0.5) !important; transition: all 0.2s !important;
      width: 40px; height: 40px; display: flex !important; align-items: center; justify-content: center;
    }
    .video-actions .action-icon:hover { color: #fff !important; transform: scale(1.1); }
    .video-actions .action-icon.liked { color: #ed4956 !important; }
    .video-post.item-hide { opacity: 0; transform: scale(0.8); }
    .video-post.item-focus, .video-post.item-next { opacity: 1; transform: scale(1); }
    #feed-container iframe { border: none !important; }
    #feed-container .ytp-chrome-top, .ytp-gradient-top, .ytp-pause-overlay { display: none !important; }
    @media (max-width: 768px) {
      .player-container { width: 100%; height: 100vh; position: static; transform: none; border-radius: 0; }
    }
    #feed-container::-webkit-scrollbar { width: 4px; }
    #feed-container::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.2); border-radius: 2px; }
    /* Dark modal */
    .comment-modal .modal-background { background-color: rgba(10,10,10,0.85) !important; }
    .comment-modal .box { background-color: #262626 !important; border: 1px solid #404040 !important; }
    .comment-modal .input { background-color: #1e1e1e !important; border: 1px solid #404040 !important; color: white !important; }
    .comment-modal .input::placeholder { color: #8e8e8e !important; }