* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: #050505;
}

.stage {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.stage-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}