@charset "UTF-8";
/* CSS Document */

/*------------------
   bg animation
------------------*/

.circles{
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100%;
  overflow: hidden;
  z-index: -1; /*3*/
}

.circles li{
  position: absolute;
  display: block;
  animation: animate 25s linear infinite;
  bottom: -150px;
  width: 50px;
}

.circles li img {
  width: 100%;
  height: auto;
}

.circles li:nth-child(1){
  left: 10%;
  animation-delay: 2s;
  animation-duration: 12s;
  width: 60px;
}

.circles li:nth-child(2){
  left: 50%;
  width: 72px;
  animation-delay: 3s;
  animation-duration: 30s;
}

.circles li:nth-child(3){
  left: 25%;
  animation-delay: 0s;
}

.circles li:nth-child(4){
  left: 17%;
  width: 90px;
  animation-delay: .5s;
  animation-duration: 15s;
  width: 60px;
}

.circles li:nth-child(5){
  left: 30%;
  animation-delay: 0s;
  animation-duration: 10s;
}

.circles li:nth-child(6){
  left: 40%;
  width: 72px;
  animation-delay: 2s;
  animation-duration: 15s;
}

.circles li:nth-child(7){
  left: 85%;
  animation-delay: 0s;
  width: 60px;
}

.circles li:nth-child(8){
  left: 70%;
  animation-delay: 4s;
}

.circles li:nth-child(9){
  left: 75%;
  animation-delay: 3s;
}

.circles li:nth-child(10){
  left: 80%;
  animation-delay: 0s;
  animation-duration: 11s;
}

.circles li:nth-child(11){
  left: 30%;
  animation-delay: 1s;
  animation-duration: 30s;
}

.circles li:nth-child(12){
  left: 65%;
  animation-delay: 1.5s;
  animation-duration: 25s;
}

@keyframes animate {

  0%{
    transform: translate(0,0) rotate(0);
    opacity: .8;
  }

  40% {
    transform: translate(50px,-400px) rotate(90deg);
  }

  60%{
    transform: translate(-40px,-600px) rotate(135deg);
  }

  80%{
    transform: translate(10px,-800px) rotate(160deg);
  }

  100%{
    transform: translate(0,-1200px) rotate(180deg);
    opacity: 0;
  }

}