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

body {
  margin: 0;
  padding: 0;
  background: #050019;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  font-family: 'Courier New', Courier, monospace;
  color: #fff;
  position: relative;
}

#overlay {
  position: absolute;
  z-index: 10;
  top: 20px;
  left: 20px;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

#sketch-holder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

canvas {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 0;
}