body {
  background-color: black;
  background-size: cover;
  background-image: url(../images/main-bg.jpg);
  user-select: none;
}

.container {
  margin: 50px auto 0;
  display: flex;
  justify-content: center;
}

.info, .score, .start, .continue {
  padding: 0 10px;
  border: 3px solid black;
  border-radius: 20px;
  color: black;
  width: 250px;
  height: 100px;
  background-color: rgb(109, 165, 211);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  font-family: fantasy;
  letter-spacing: 2px;
  font-size: 36px;
  z-index: 200;
}

.info {
  margin-right: 30px;
}

.info > div {
  width: 100%;
  display: flex;
  justify-content: space-between;
}

.score {
  margin-left: 30px;
  flex-direction: row;
  justify-content: space-between;
}

.score.pvp {
  display: none;
  height: 180px;
}

.game {
  width: 770px;
  height: 770px;
  border: 3px solid black;
  border-radius: 20px;
  position: relative;
  background-size: cover;
  background-image: url(../images/game-bg.jpg);
}

.alien {
  width: 70px;
  height: 70px;
  background-image: url(../images/alien.png);
  position: absolute;
  background-size: contain;
  top: 10px;
}

.start {
  cursor: pointer;
  position: absolute;
  top: 50%;
  left: 50%;
}

.start.single {
  transform: translate(-50%, -55%);
}

.start.pvp {
  transform: translate(-50%, 55%);
}

.start:hover, .continue:hover {
  color: white;
  background-color: black;
}

.continue {
  cursor: pointer;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: none;
}

.player, .player2 {
  width: 70px;
  height: 80px;
  position: absolute;
  bottom: 10px;
  left: 490px;
  background-image: url(../images/aircraft.png);
  background-size: contain;
}

.player2 {
  left: 210px;
  background-image: url(../images/aircraft2.png);
}

.laser {
  position: absolute;
  left: 378px;
  height: 50px;
  width: 10px;
  background: linear-gradient(to left, rgb(35, 12, 240), rgb(100, 240, 230));
  box-shadow: 0px 5px 20px 5px rgb(40, 18, 238);
  color: transparent;
  animation: moveUp1 0.5s normal linear;
}

.laser2 {
  background: linear-gradient(to left, rgb(226, 9, 9), rgb(240, 153, 235));
  box-shadow: 0px 5px 20px 5px rgb(238, 18, 73);
  animation: moveUp2 0.5s normal linear;
}

@keyframes moveUp1 {
  0% {
    top: var(--bullet-top0, 600px);
  }
  100% {
    top: 0px;
    display: none;
  }
}

@keyframes moveUp2 {
  0% {
    top: var(--bullet-top1, 600px);
  }
  100% {
    top: 0px;
    display: none;
  }
}