body {
      margin: 0;
      overflow: hidden;
      background: #1a1a1a;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: 100vh;
      font-family: Arial, sans-serif;
}

canvas {
      display: block;
      border: 2px solid #333;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.info {
      position: absolute;
      top: 20px;
      left: 20px;
      color: white;
      background: rgba(0,0,0,0.7);
      padding: 10px;
      border-radius: 5px;
      font-size: 14px;
}
    
#input_video {
  position: fixed;
  top: 10px;
  right: 10px;
  width: 320px;
  height: 240px;
}

#handOverlay {
  position: fixed;
  top: 10px;
  right: 10px;
  width: 320px;
  height: 240px;
  pointer-events: none;
}