* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  border: none;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

a-scene {
  width: 100vw;
  height: 100vh;
}

/* Base Containers */
.stack {
  display: flex;
  flex-direction: column;
}
.center {
  text-align: center;
  align-items: center;
  justify-content: center;
}

/* Scanning prompt overlay */
.scanning {
  position: fixed;
  inset: 0;
  z-index: 10;
  padding: 2rem;
  pointer-events: none;
}