html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: black;
  font-family: Arial, sans-serif;
  touch-action: none;
  overscroll-behavior: none;
}

body {
  position: fixed;
  width: 100%;
}

#container {
  width: 100vw;
  height: 100vh;
}

#startScreen {
  position: absolute;
  width: 100%;
  height: 100%;
  background: #000;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 10;
}

#rotateScreen {
  position: absolute;
  width: 100%;
  height: 100%;
  background: #000;
  color: white;
  display: none;
  justify-content: center;
  align-items: center;
  text-align: center;
  z-index: 30;
}

/* Mobile joystick */
.joystick {
  position: absolute;
  bottom: 40px;
  left: 40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  z-index: 20;
}

.stick {
  position: absolute;
  width: 40px;
  height: 40px;
  left: 40px;
  top: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
}