$forecolor: #92cbd9;
$backcolor: #6294a0;

%pseudo {
  content: "";
  position: absolute;
}

@keyframes walk {
  25% {
    transform: translate3d(0, 2px, 0);
  }
  75% {
    transform: translate3d(0, -2px, 0);
  }
}


@keyframes twinkle {
  90% {
    transform: scale3d(1, 1, 1);
  }
  95% {
    transform: scale3d(1, 0.1, 1);
  }
}


@keyframes walk-right-hand {
  25% {
    transform: rotate(-10deg);
  }
  75% {
    transform: rotate(10deg);
  }
}


@keyframes walk-left-hand {
  25% {
    transform: rotate(10deg);
  }
  75% {
    transform: rotate(-10deg);
  }
}


@keyframes walk-left-foot {
  25% {
    transform: rotate(25deg);
  }
  75% {
    transform: rotate(-25deg);
  }
}


@keyframes walk-right-foot {
  25% {
    transform: rotate(-25deg);
  }
  75% {
    transform: rotate(25deg);
  }
}

body {
  background: #646464;
}

#wrap {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#alien {
  position: relative;
  width: 100px;
  height: 180px;
  animation: walk 1s linear infinite;
  &:before {
    @extend %pseudo;
    left: -20px;
    top: -20px;
    width: 120px;
    height: 120px;
    border: 10px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    z-index: 99;
  }
}

.body {
  position: absolute;
  top: 49px;
  width: 100px;
  height: 80px;
  background: $forecolor;
  &:before {
    @extend %pseudo;
    top: -50px;
    width: 100px;
    height: 100px;
    background: $forecolor;
    border-radius: 50%;
    clip: rect(0, 100px, 50px, 0);
  }
  &:after {
    content: '';
    position: absolute;
    top: 54px;
    width: 100px;
    height: 50px;
    background: $forecolor;
    border-radius: 50%;
    clip: rect(25px, 100px, 50px, 0);
  }
}

.eyes {
  position: absolute;
  top: 0;
  width: 20px;
  height: 20px;
  background: $backcolor;
  border-radius: 50%;
  animation: twinkle 5s infinite;
  &.left {
    left: 30px;
  }
  &.right {
    left: 70px;
  }
}

.mouse {
  position: absolute;
  top: 20px;
  left: 45px;
  width: 30px;
  height: 20px;
  border: 5px solid $backcolor;
  border-radius: 50%;
  box-sizing: border-box;
  clip: rect(10px, 30px, 20px, 0);
}

.arms {
  position: absolute;
  top: 80px;
  width: 80px;
  &:before {
    @extend %pseudo;
    top: 0;
    width: 80px;
    height: 200px;
    border: 10px solid #92cbd9;
    border-top-width: 20px;
    border-radius: 50%;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
  }
  &:after {
    @extend %pseudo;
    top: 33px;
    width: 12px;
    height: 12px;
    background: #92cbd9;
    border-radius: 50%;
    clip: rect(6px, 12px, 12px, 0);
  }
  &.left {
    left: -30px;
    animation: walk-left-hand 1s linear infinite;
    &:before {
      clip: rect(0, 35px, 40px, 0);
    }
    &:after {
      left: 8px;
    }
  }
  &.right {
    right: -30px;
    animation: walk-right-hand 1s linear infinite;
    &:before {
      clip: rect(0, 80px, 40px, 45px);
    }
     &:after {
      right: 8px;
    }
  }
}

.legs {
  position: absolute;
  top: 140px;
  width: 20px;
  &:before {
    @extend %pseudo;
    width: 0;
    border: 10px solid transparent;
    border-top: 150px solid $forecolor;
    clip: rect(0px, 20px, 30px, 0);
  }
  &:after {
    @extend %pseudo;
    top: 20px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: $forecolor;
    border-radius: 50%;
    clip: rect(8px, 16px, 16px, 0);
  }
  &.left {
    left: 20%;
    animation: walk-left-foot 1s linear infinite;
  }
  &.right {
    right: 20%;
    animation: walk-right-foot 1s linear infinite;
  }
}

.halo {
  position: absolute;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  &:nth-child(1) {
    width: 30px;
    height: 30px;
    top: 10px;
    right: 10px;
  }
  &:nth-child(2) {
    width: 15px;
    height: 15px;
    bottom: 35px;
    right: 30px;
  }
  &:nth-child(3) {
    width: 13px;
    height: 13px;
    bottom: 50px;
    right: 5px;
  }
  &:nth-child(4) {
    width: 10px;
    height: 10px;
    bottom: 40px;
    right: 18px;
  }
}