.firepit
  .fire
    .flame
    .flame
    .flame
    .flame
    .spark
    .spark
    .spark
    .spark
    .spark
    .spark
    .spark
    .spark
    .spark
    .spark
    .spark
    .spark

@import "compass/css3";

$orange: rgb(255, 106, 0);
$red: rgb(255, 34, 0);
$yellow: rgb(255, 200, 0);
$blue: rgb(0, 55, 255);

body {
   background: rgb(22,22,30); 
}
.firepit {
  position: absolute;
  bottom: 0;
  left: 47%;
}
.fire {
  position: relative;
  width: 60px;
  height: 60px;
  
  .flame {
    position: absolute;
    bottom: 0;
    left: 0;
    opacity: .9;
    width: 100%;
    height: 100%;
    border-bottom-right-radius: 70%;
    border-bottom-left-radius: 70%;
    border-top-left-radius: 70%;
    transform: rotate(-45deg)  skew(-10deg, -10deg);
    background-color: $red;
    background-image: linear-gradient(top right, fade-out($red, .1), fade-out($orange, .3));
    z-index: 1;
    
    animation-iteration-count: infinite;
    animation-fill-mode: forwards;
    animation-name: burn-left;
    animation-duration: 300ms;
    
    &:nth-of-type(2n){
      animation-name: burn-right;
      animation-duration: 400ms;
    }
    
    &:nth-of-type(2) {
      height: 80%;
      width: 80%;
      left: 10%;
      background-color: $orange;
      background-image: linear-gradient(top right, fade-out($orange, .9), fade-out($yellow, .9));
      z-index: 2;
    }
    
    &:nth-of-type(3) {
      height: 50%;
      width: 50%;
      left: 25%;
      background-image: linear-gradient(top right, $yellow, white);
      z-index: 3;
    }
    
    &:nth-of-type(4) {
      height: 30%;
      width: 30%;
      left: 35%;
      background-color: white;
      background-image: linear-gradient(top right, fade-out(white, .7), fade-out($blue,.1));
      opacity: 1;
      z-index: 4;
    }
  }
}

.spark {
  position: absolute;
  bottom: 46%;
  left: 15%;
  width: 3px;
  height: 3px;
  background-color: fade-out($orange,.6);
  
  animation-name: fly-up-burnout-1;
  animation-duration: 6s;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  animation-delay: .4s;
  
  &:nth-of-type(2n) {
    animation-name: fly-up-burnout-2;
    animation-duration: 8.4s;
    animation-delay: 1s;
  }
  &:nth-of-type(3n) {
    animation-delay: 1.9s;
    animation-duration: 8s;
    left: 55%;
  }
  &:nth-of-type(4n) {
    animation-delay: 2.6s;
    animation-duration: 7s;
    left: 88%;
  }
  &:nth-of-type(5n) {
    animation-delay: 1.4s;
    animation-duration: 7s;
    left: 22%;
  }
  &:nth-of-type(6n) {
    animation-delay: 3.2s;
    left: 61%;
  }
  &:nth-of-type(7n) {
    animation-delay: .8s;
    animation-duration: 5s;
    left: 64%;
  }
  &:nth-of-type(8n) {
    animation-delay: 5s;
    left: 19%;
  }
  &:nth-of-type(9n) {
    animation-delay: 4s;
    animation-duration: 6.8s;
    left: 22%;
  }
  &:nth-of-type(10n) {
    animation-delay: 5.2s;
    left: 61%;
  }
  &:nth-of-type(11n) {
    animation-delay: 3.5s;
    animation-duration: 8s;
    left: 81%;
  }
  &:nth-of-type(12n) {
    animation-delay: 2s;
    left: 85%;
  }
}

@keyframes burn-left {
  0%, 100%{transform: rotate(-45deg)  skew(-10deg, -10deg) scale(1);}
  30%, 60%{transform: rotate(-44deg)  skew(-12deg, -12deg) scale(1.01);}
}

@keyframes burn-right {
  0%, 100%{transform: rotate(-45deg)  skew(-10deg, -10deg) scale(1);}
  30%, 60%{transform: rotate(-46deg)  skew(-6deg, -6deg) scale(1.01);}
}

@keyframes fly-up-burnout-1 {
  0% {
    transform: translate(0, 0);
    opacity: 1;
  }
  
  33%{
    transform: translate(12px, -70px);
  }
  
  66% {
    transform: translate(0, -140px);
    opacity: .6;
  }
  
  100% {
    transform: translate(6px, -200px);
    opacity: 0;
  }
}

@keyframes fly-up-burnout-2 {
  0% {
    transform: translate(0, 0);
    opacity: 1;
  }
  
  50%{
    transform: translate(-10px, -80px);
  }
  
  80% {
    transform: translate(-4px, -140px);
    opacity: .6;
  }
  
  100% {
    transform: translate(-6px, -160px);
    opacity: 0;
  }
}