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

body {
  margin: 0;
  min-height: 100dvh;
  background: #000;
  overflow: hidden;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  padding: 0.75rem 1rem;
}

header a {
  color: #999;
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

header a:hover {
  color: #e0e0e0;
}

main {
  width: 100%;
  height: 100dvh;
  position: relative;
  z-index: 0;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 0;
  image-rendering: auto;
}