*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: #1a1a2e;
  font-family: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  padding: 0.75rem 1rem;
}

header a {
  color: hsl(0 0% 80% / 0.6);
  text-decoration: none;
  font-size: 0.75rem;
  transition: color 0.2s ease;
}

header a:hover {
  color: hsl(0 0% 95% / 0.9);
}

main {
  width: 100dvw;
  height: 100dvh;
  position: relative;
}

#canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}