:root { color-scheme: dark; }
* { box-sizing: border-box; }
html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #05070a;
}
#stage {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 100vw;
  height: 56.25vw;
  max-width: 177.7778vh;
  max-height: 100vh;
  transform: translate(-50%, -50%);
  overflow: hidden;
  background: #05070a;
}
#webrtc, #mjpeg, #hud {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
#mjpeg {
  object-fit: cover;
  display: none;
}
#webrtc { background: #05070a; }
#hud {
  pointer-events: none;
  z-index: 5;
}