* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  width: 100%; height: 100%; overflow: hidden;
  background: #1b1430;
  touch-action: none; -webkit-user-select: none; user-select: none;
  overscroll-behavior: none;
  position: fixed; inset: 0;
}
#game { display: block; width: 100%; height: 100%; touch-action: none; }
/* loading flash */
#boot-loader {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(#ffd9e6, #ffe9cf); z-index: 10; font: 800 28px Heebo, Rubik, sans-serif; color: #e96f95;
}