/*
 *  Usage:
 *
      <div class="xt_woofc-spinner-fading-circle">
        <div class="xt_woofc-spinner-circle1 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle2 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle3 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle4 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle5 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle6 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle7 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle8 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle9 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle10 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle11 xt_woofc-spinner-circle"></div>
        <div class="xt_woofc-spinner-circle12 xt_woofc-spinner-circle"></div>
      </div>
 *
 */
@import "../variables";

.xt_woofc-spinner-fading-circle {
  $circleCount: 12;
  $animationDuration: 1.2s;

  width: $spinkit-spinner-size;
  height: $spinkit-spinner-size;
  position: relative;

  .xt_woofc-spinner-circle {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
  }

  .xt_woofc-spinner-circle:before {
    content: '';
    display: block;
    margin: 0 auto;
    width: 15%;
    height: 15%;
    background-color: $spinkit-spinner-color;
    border-radius: 100%;
    animation: xt_woofc-spinner-circleFadeDelay $animationDuration infinite ease-in-out both;
  }

  @for $i from 2 through $circleCount {
    .xt_woofc-spinner-circle#{$i} { transform: rotate(360deg / $circleCount * ($i - 1)); }
  }

  @for $i from 2 through $circleCount {
    .xt_woofc-spinner-circle#{$i}:before { animation-delay: $animationDuration + $animationDuration / $circleCount * ($i - 1); }
  }

}

@keyframes xt_woofc-spinner-circleFadeDelay {
  0%, 39%, 100% { opacity: 0 }
  40% { opacity: 1 }
}