// Button variants
.button-primary-variant(@font-base-color; @primary-color; @calc-readable-color:false) {
  @color-event-light: color(~`palette('@{primary-color}', 300) `);
  @color-light: color(~`palette('@{primary-color}', 400) `);
  @color-dark: color(~`palette('@{primary-color}', 600) `);
  @color-darker: color(~`palette('@{primary-color}', 700) `);
  /* stylelint-disable-next-line */ // calcFontColor is hack function
  @readable-color: color(~`calcFontColor('@{color-darker}') `);
  @font-color: if(boolean(@calc-readable-color), @readable-color, @font-base-color);

  color: @font-color;
  background-color: @color-darker;
  .btn-icon-with-text(@color-dark);

  .btn-loading-reset(@font-color, @color-darker);

  &:focus,
  &.@{ns}btn-focus {
    color: @font-color;
    background-color: @color-dark;
    .btn-icon-with-text(@primary-color);
  }

  &:hover {
    color: @font-color;
  }

  &:not(.@{ns}btn-disabled):hover {
    background-color: @color-dark;
    .btn-icon-with-text(@primary-color);
  }

  &:active,
  &.@{ns}btn-active,
  .@{ns}open > .@{ns}dropdown-toggle& {
    color: @font-color;
    background-color: @color-light;
    .btn-icon-with-text(@color-event-light);

    &:hover,
    &:focus,
    &.focus {
      color: @font-color;
      background-color: @color-light;
      .btn-icon-with-text(@color-event-light);
    }
  }

  &:active,
  &.@{ns}btn-active,
  .open > .@{ns}dropdown-toggle& {
    background-image: none;
  }

  &.@{ns}btn-disabled {
    &:hover,
    &:focus,
    &.focus {
      background: @color-darker;
    }
  }
}

.btn-subtle-variant(@color) {
  @color-light: color(~`palette('@{color}', 400) `);
  @color-dark: color(~`palette('@{color}', 600) `);

  color: @btn-subtle-color;
  background-color: transparent;

  .btn-loading-reset(@btn-subtle-color);

  &:focus,
  &.@{ns}btn-focus,
  &:hover {
    color: @btn-subtle-hover-color;
    background: @color;
  }

  &:active,
  &.@{ns}btn-active,
  .@{ns}open > .@{ns}dropdown-toggle& {
    color: @btn-subtle-active-color;
    background-color: @color-light;
    background-image: none;

    &:hover,
    &:focus,
    &.focus {
      color: @btn-subtle-active-color;
      background-color: @color-light;
    }
  }

  &.@{ns}btn-disabled {
    &,
    &:hover,
    &:focus,
    &.focus,
    &:active,
    &:hover:active {
      color: @btn-subtle-disabled-color;
      background: none;
    }
  }
}

.btn-ghost-variant(@font-base-color,@border-base-color) {
  @color: @font-base-color;
  @color-light: color(~`palette('@{color}', 400) `);
  @color-border-light: color(~`palette('@{color}', 400) `);
  @border-color: @border-base-color;
  @color-lighter: color(~`palette('@{border-color}', 200) `);
  @color-border-lighter: color(~`palette('@{border-color}', 200) `);

  color: @color;
  border: 1px solid @border-color;
  background-color: transparent;

  .btn-loading-reset(@color);

  &:focus,
  &.@{ns}btn-focus {
    color: @color-light;
    border-color: @color-border-light;
  }

  &:hover {
    color: @color-light;
    border-color: @color-border-light;
  }

  &:active,
  &.@{ns}btn-active,
  .@{ns}open > .@{ns}dropdown-toggle& {
    color: @color-lighter;
    border-color: @color-border-lighter;
    background-image: none;

    &:hover,
    &:focus,
    &.@{ns}btn-focus {
      color: @color-lighter;
      border-color: @color-border-lighter;
    }
  }

  &.@{ns}btn-disabled {
    &:hover,
    &:focus,
    &.focus {
      background: none;
    }
  }
}

.btn-link-variant(@base-color) {
  @color: @base-color;
  @hover-color: color(~`palette('@{base-color}', 400) `);
  @active-color: color(~`palette('@{base-color}', 200) `);

  color: @color;
  font-weight: normal;
  border-radius: 0;

  .btn-loading-reset(@color);

  &,
  &:active,
  &.@{ns}btn-active {
    background-color: transparent;
  }

  &,
  &:hover,
  &:focus,
  &:active {
    border-color: transparent;
  }

  &:hover,
  &:focus {
    color: @hover-color;
    text-decoration: @link-hover-decoration;
    background-color: transparent;
  }

  &:active,
  &.@{ns}btn-active {
    color: @active-color;

    &:hover,
    &:focus,
    &.focus {
      color: @active-color;
    }
  }

  &.@{ns}btn-disabled {
    &:hover,
    &:focus {
      color: @color;
      text-decoration: none;
    }
  }
}