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

:root {
  --sat-top: env(safe-area-inset-top, 0px);
  --sat-left: env(safe-area-inset-left, 0px);
  --sat-right: env(safe-area-inset-right, 0px);
  --sat-bottom: env(safe-area-inset-bottom, 0px);
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #fff;
  color: #000;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  touch-action: none;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

body {
  position: fixed;
  inset: 0;
}

#game {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: #fff;
  touch-action: none;
  cursor: crosshair;
}