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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.crt {
  position: fixed;
  inset: 0;
  background: #0a0a0a;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow:
    0 0 60px rgba(0, 255, 65, 0.06),
    inset 0 0 120px rgba(0, 0, 0, 0.5);
}

.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.18) 0px,
    rgba(0, 0, 0, 0.18) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  z-index: 10;
}

canvas {
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}