@import './core/variables.scss';

.vc-skeleton {
  background: $separator-color;
  border-radius: $generic-border-radius;

  &--anim {
    cursor: wait;
  }

  /*
    maintain size even with border
    for types that have height specified
   */
  box-sizing: border-box;

  &:before {
    content: ' ';
  }

  &--type {
    &-text {
      transform: scale(1, 0.5);
    }

    &-circle,
    &-VcAvatar {
      height: 48px;
      width: 48px;
      border-radius: 50%;
    }

    &-VcBtn {
      width: 90px;
      height: 36px;
    }

    &-VcBadge {
      width: 70px;
      height: 16px;
    }

    &-VcChip {
      width: 90px;
      height: 28px;
      border-radius: 16px;
    }

    &-VcToolbar {
      height: 50px;
    }

    &-VcCheckbox,
    &-VcRadio {
      width: 40px;
      height: 40px;
      border-radius: 50%;
    }

    &-VcToggle {
      width: 56px;
      height: 40px;
      border-radius: 7px;
    }

    &-VcSlider,
    &-VcRange {
      height: 40px;
    }

    &-VcInput {
      height: 56px;
    }
  }

  &--bordered {
    border: 1px solid rgba(0, 0, 0, 0.05);
  }

  &--square {
    border-radius: 0;
  }

  &--anim-fade {
    animation: vc-skeleton--fade 1.5s linear 0.5s infinite;
  }

  &--anim-pulse {
    animation: vc-skeleton--pulse 1.5s ease-in-out 0.5s infinite;
  }

  &--anim-pulse-x {
    animation: vc-skeleton--pulse-x 1.5s ease-in-out 0.5s infinite;
  }

  &--anim-pulse-y {
    animation: vc-skeleton--pulse-y 1.5s ease-in-out 0.5s infinite;
  }

  &--anim-wave,
  &--anim-blink,
  &--anim-pop {
    position: relative;
    overflow: hidden;
    z-index: 1;

    &:after {
      content: '';
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      z-index: 0;
    }
  }

  &--anim-blink:after {
    background: rgba(255, 255, 255, 0.7);
    animation: vc-skeleton--fade 1.5s linear 0.5s infinite;
  }

  &--anim-wave:after {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0));
    animation: vc-skeleton--wave 1.5s linear 0.5s infinite;
  }

  &--dark {
    background: rgba(255, 255, 255, 0.05);

    &.vc-skeleton--bordered {
      border: 1px solid rgba(255, 255, 255, 0.25);
    }

    &.vc-skeleton--anim-wave:after {
      background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0));
    }

    &.vc-skeleton--anim-blink:after {
      background: rgba(255, 255, 255, 0.2);
    }
  }
}

@keyframes vc-skeleton--fade {
  0% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }

  100% {
    opacity: 1;
  }
}

@keyframes vc-skeleton--pulse {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(0.85);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes vc-skeleton--pulse-x {
  0% {
    transform: scaleX(1);
  }

  50% {
    transform: scaleX(0.75);
  }

  100% {
    transform: scaleX(1);
  }
}

@keyframes vc-skeleton--pulse-y {
  0% {
    transform: scaleY(1);
  }

  50% {
    transform: scaleY(0.75);
  }

  100% {
    transform: scaleY(1);
  }
}

@keyframes vc-skeleton--wave {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}