@import '../../styles/variables.less';

@chasing-ring-prefix: ~'@{so-prefix}-chasing-ring';

.@{chasing-ring-prefix} {
  @animationDuration: 2s;

  position: relative;
  margin: auto;
  // border-radius: 50%;
  // animation: @loading 2.3s linear infinite;

  @loading: ~'@{chasing-ring-prefix}-loading';
  @loading1: ~'@{chasing-ring-prefix}-loading1';
  @loading2: ~'@{chasing-ring-prefix}-loading2';
  @loading3: ~'@{chasing-ring-prefix}-loading3';
  @loading4: ~'@{chasing-ring-prefix}-loading4';

  @keyframes @loading {
    0% {
      transform: rotateZ(0deg);
    }

    100% {
      transform: rotateZ(360deg);
    }
  }

  @keyframes @loading1 {
    0% {
      transform: rotateZ(0deg);
    }

    44% {
      transform: rotateZ(225deg);
    }

    100% {
      transform: rotateZ(360deg);
    }
  }

  @keyframes @loading2 {
    0% {
      transform: rotateZ(75deg);
    }

    44% {
      transform: rotateZ(225deg);
    }

    100% {
      transform: rotateZ(435deg);
    }
  }

  @keyframes @loading3 {
    0% {
      transform: rotateZ(150deg);
    }

    44% {
      transform: rotateZ(225deg);
    }

    100% {
      transform: rotateZ(510deg);
    }
  }

  @keyframes @loading4 {
    0% {
      transform: rotateZ(225deg);
    }

    44% {
      transform: rotateZ(225deg);
    }

    100% {
      transform: rotateZ(585deg);
    }
  }

  &-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border: solid 1px transparent;
    border-radius: 100%;
    transform-origin: 50% 50%;
  }

  &-item:nth-child(1) {
    animation: @loading1 @animationDuration infinite;
  }

  &-item:nth-child(2) {
    animation: @loading2 @animationDuration infinite;
  }

  &-item:nth-child(3) {
    animation: @loading3 @animationDuration infinite;
  }

  &-item:nth-child(4) {
    animation: @loading4 @animationDuration infinite;
  }
}