body {
  margin: 0;
  overflow: hidden;
  font-family: Arial, sans-serif;
  background-color: #000;
}
#blocker {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 99;
}
#instructions {
  width: 100%;
  color: white;
  text-align: center;
  font-size: 14px;
  cursor: pointer;
}
#loading {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 999;
}
.joystick-container {
  position: absolute;
  bottom: 20px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  touch-action: none; /* important on mobile to prevent default gestures */
  display: none; /* hidden by default, shown only if on mobile */
}
#joystick-left {
  left: 40px;
}
#joystick-right {
  right: 40px;
}
.joystick {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 72px;
  height: 72px;
  margin-left: -36px;
  margin-top: -36px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.3);
  touch-action: none;
}