.nut-indicator {
  display: flex;
  width: auto;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;

  &-fixed-width {
    width: $indicator-track-width;
  }

  &-dot,
  &-line {
    display: inline-block;
    vertical-align: middle;
    width: $indicator-dot-size;
    height: $indicator-dot-size;
    border-radius: 50%;
    background-color: $indicator-dot-inactive-color;
    border: $indicator-dot-border;
    box-sizing: border-box;
    margin-left: $indicator-dot-margin;

    &-0 {
      margin-left: 0;
    }

    &-active {
      width: $indicator-dot-active-size;
      height: $indicator-dot-size;
      border-radius: $indicator-border-radius;
      background: $indicator-color;
      border: $indicator-dot-border;
    }
  }

  // 双屏模式
  &-fixed-width {
    .nut-indicator-dot {
      width: $indicator-dual-screen-inactive-width;
      height: $indicator-dot-size;
      border-radius: $indicator-border-radius;

      &-active {
        width: $indicator-dot-active-size;
        height: $indicator-dot-size;
      }
    }
  }

  &-vertical {
    // 竖向固定高度
    &.nut-indicator-fixed-width {
      justify-content: flex-start;
      height: $indicator-track-width;
      width: auto;

      // 竖向双屏
      .nut-indicator-dot {
        width: $indicator-dot-size;
        height: $indicator-dual-screen-inactive-width;
        border-radius: $indicator-border-radius;

        &-active {
          width: $indicator-dot-size;
          height: $indicator-dot-active-size;
        }
      }
    }
  }

  &-line {
    width: $indicator-slider-width;
    margin: 0;
    border-radius: $indicator-border-radius;
    background-color: transparent;
    border: none;

    &-active {
      position: relative;
      z-index: 1;
      transition: transform 0.3s ease-in-out;
      background: $indicator-color;
      border: $indicator-dot-border;
      transform: translateX(
        calc(
          var(--nutui-indicator-current, 0) /
            (var(--nutui-indicator-total, 2) - 1) *
            (#{$indicator-track-width} - #{$indicator-slider-width})
        )
      );
    }
  }

  // 定位布局
  &-outside {
    margin-top: $indicator-placement-gap;
    margin-bottom: $indicator-placement-safe-gap;
    justify-content: center;
  }

  &-inside-top-right {
    position: absolute;
    top: $indicator-placement-gap;
    right: $indicator-placement-gap;
  }

  &-inside-bottom-center {
    position: absolute;
    bottom: $indicator-placement-gap;
    left: 50%;
    transform: translateX(-50%);
  }

  &-inside-bottom-left {
    position: absolute;
    bottom: $indicator-placement-gap;
    left: $indicator-placement-gap;
  }
}

.nut-indicator-track {
  position: relative;

  &:after {
    display: block;
    content: ' ';
    position: absolute;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    border-radius: $indicator-border-radius;
    background-color: $indicator-dot-inactive-color;
    border: $indicator-dot-border;
  }
}

.nut-indicator-white {
  .nut-indicator {
    &-dot,
    &-line {
      position: relative;
      background: $color-primary-text;
      opacity: 0.4;
    }

    &-line {
      opacity: 0;

      &-active {
        opacity: 1;
        background: $color-primary-text;
      }
    }

    &-dot {
      &-active {
        background: $color-primary-text;
        opacity: 1;
      }
    }
  }
}

.nut-indicator-track.nut-indicator-white {
  &:after {
    background: $color-primary-text;
    opacity: 0.4;
  }
}

.nut-indicator-vertical {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  .nut-indicator {
    &-dot {
      margin: 0;
      margin-top: $indicator-dot-margin;

      &-0 {
        margin-top: 0;
      }

      &-active {
        width: $indicator-dot-size;
        height: $indicator-dot-active-size;
      }
    }
  }

  &.nut-indicator-track {
    .nut-indicator {
      &-line {
        width: $indicator-dot-size;
        height: $indicator-slider-width;

        &-active {
          transform: translateY(
            calc(
              var(--nutui-indicator-current, 0) /
                (var(--nutui-indicator-total, 2) - 1) *
                (#{$indicator-track-width} - #{$indicator-slider-width})
            )
          );
        }
      }
    }
  }
}

[dir='rtl'] .nut-indicator,
.nut-rtl .nut-indicator {
  &-dot {
    &-0 {
      margin-right: $indicator-dot-margin;
      margin-left: 0;
    }
  }

  &-inside-top-right {
    right: auto;
    left: $indicator-placement-gap;
  }

  &-inside-bottom-left {
    left: auto;
    right: $indicator-placement-gap;
  }
}