:root {
  color-scheme: dark;
  --bg: #05060d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: var(--bg);
  color: #e8ecff;
  font-family: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  overscroll-behavior: none;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

body {
  display: block;
  /* radial vignette behind the letterboxed canvas */
  background:
    radial-gradient(120% 90% at 50% 0%, #101736 0%, #05060d 60%, #02030a 100%);
}

#game {
  display: block;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
  image-rendering: auto;
}

noscript {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 18px;
}