.nut-theme-dark {
  .nut-checkbox {
    &__label {
      color: $dark-color;

      &--disabled {
        color: $checkbox-label-disable-color;
      }
    }

    &__button {
      color: $dark-color;
      background: $dark-background;

      &--disabled {
        color: $checkbox-label-disable-color;
        border: 1px solid $checkbox-label-disable-color;
      }
    }
  }
}

.nut-checkbox {
  display: $checkbox-display;
  align-items: center;
  margin-right: $checkbox-margin-right;
  vertical-align: bottom;

  &--reverse {
    flex-direction: row-reverse;

    .nut-checkbox__label {
      margin-right: $checkbox-label-margin-left;
      margin-left: 0;
    }
  }

  &__button {
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    padding: $checkbox-button-padding;
    overflow: hidden;
    font-size: $checkbox-button-font-size;
    color: $checkbox-label-color;
    background: $checkbox-button-background;
    border: 1px solid $checkbox-button-border-color;
    border-radius: $checkbox-button-border-radius;

    &--active {
      position: relative;
      color: $checkbox-button-font-color-active;
      background: transparent;
      border: 1px solid $checkbox-button-border-color-active;

      &::after {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        content: "";
        background-color: $checkbox-button-background-active;
        opacity: 0.05;
      }
    }

    &--disabled {
      color: $checkbox-label-disable-color;
      border: none;
    }
  }

  &__label {
    flex: 1;
    margin-left: $checkbox-label-margin-left;
    font-size: $checkbox-label-font-size;
    color: $checkbox-label-color;

    &--disabled {
      color: $checkbox-label-disable-color;
    }
  }

  &__icon {
    font-size: $checkbox-icon-font-size;
    color: $primary-color;
    transition-duration: 0.3s;
    transition-property: color, border-color, background-color;
  }

  &__icon--unchecked {
    font-size: $checkbox-icon-font-size;
    color: $checkbox-icon-disable-color;
  }

  &__icon--indeterminate {
    font-size: $checkbox-icon-font-size;
    color: $primary-color;
  }

  &__icon--disabled,
  // TODO 2.x移除
  &__icon--disable {
    font-size: $checkbox-icon-font-size;
    color: $checkbox-icon-disable-color2;
  }
}