*{
  margin: 0;
  padding: 0;
  list-style-type:none;
  touch-action: none;
  user-select: none;
}

.bg {
  position: absolute;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  background: url(../img/banner-3.jpg);
  background-size: cover;
  transform: scale(1.1);
}

canvas {
  position: relative;
  z-index: 1;
}

.header {
  position: fixed;
  z-index: 3;
  top: 0;
  left: 0;
  display: flex;
  justify-content: space-between;
  margin: 20px;
  padding: 13px 20px;
  font-size: 15px;
  font-family: Lato, Arial;
  color: #333;
  box-sizing: border-box;
  box-shadow: 0 2px 3px rgba(0, 0, 0, .1);
  background: rgba(255, 255, 255, .8);
  border-radius: 30px;
  width: calc(100% - 40px);
  text-transform: uppercase;
  
  &.game-over {
    color: transparent;
    background: black;

    &:before {
      content: "GAME OVER!";
      color: #fff;
      text-align: center;
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
    }
  }
}