html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overscroll-behavior: none;
}

#game[hidden],
#menu[hidden] {
  display: none !important;
}

#game:not([hidden]),
#menu:not([hidden]) {
  display: block;
}

#game {
  max-width: 100vw;
  max-height: 100vh;
}

#world,
#effects {
  touch-action: none;
  user-select: none;
}

#menu {
  box-sizing: border-box;
  width: calc(100% - 24px);
  max-width: 830px;
  height: calc(100% - 24px);
  max-height: 440px;
  overflow: auto;
}

#menu h1 {
  font-size: clamp(46px, 12vw, 86px);
}

#menu .credits {
  margin-top: 18px;
  color: #9aa;
  font-size: 11px;
}