// mixins for button
// ------------------------
.button-size(@padding; @font-size; @line-height; @border-radius) {
  padding: @padding;
  font-size: @font-size;
  line-height: @line-height;
  border-radius: @border-radius;
}
.button-variant-primary(@color; @background; @border; @background-hover; @background-active) {
  .button-color(@color; @background; @border);

  &:hover,
  &:focus {
    .button-bg-color(@background-hover);
  }

  &:active,
  &.active {
    .button-bg-color(@background-active);
  }
}
.button-variant-plain(@color; @border; @hover-color; @hover-border-color; @active-color; @active-border-color) {
  .button-color(@color; transparent; @border);

  &:hover,
  &:focus {
    .button-font-color-border(@hover-color, @hover-border-color);
  }

  &:active,
  &.active {
    .button-font-color-border(@active-color, @active-border-color);
  }
}
.button-variant-hover-color(@color; @background; @hover-color; @active-color) {
  .button-color(@color, @background, @background);
  &:hover,
  &:focus {
    .button-font-color(@hover-color);
  }

  &:active,
  &.active {
    .button-font-color(@active-color);
  }
}
// Base styles of buttons
// --------------------------------------------------
.button() {
  position: relative;
  display: inline-block;
  font-weight: @button-font-weight;
  white-space: nowrap;
  text-align: center;
  background-image: none;
  border: @button-border-width @button-border-style transparent;
  cursor: pointer;
  transition: all 0.3s @ease-in-out;
  user-select: none;
  touch-action: manipulation;
  margin-right: 12px;
  &:last-child {
    margin-right: 0;
  }
  .button-size(@button-padding-base; @font-size-base; @line-height-base; @button-border-radius-base);
  .button-default;
  > .@{iconfont-css-prefix} {
    line-height: 1;
  }
  &,
  &:active,
  &:focus {
    outline: 0;
  }
  &:not([disabled]):hover {
    text-decoration: none;
  }
  &:not([disabled]):active {
    outline: 0;
    box-shadow: none;
  }
  &.disabled,
  &[disabled] {
    cursor: not-allowed;
    > * {
      pointer-events: none;
    }
  }
  &.is-round {
    border-radius: @border-radius-xl;
  }
  &.is-disabled {
    opacity: 0.3;
  }
}
.button-default() {
  font-size: @font-size-sm;
  .button-color(@button-default-color; @button-default-bg; transparent);
  &:hover,
  &:focus {
    .button-bg-color(@button-default-hover-bg);
    .button-font-size(@button-default-hover-font);
  }

  &:active,
  &.active {
    .button-bg-color(@button-default-active-bg);
    .button-font-size(@button-default-active-font);
  }
}
// primary button style
// --------------------------------------------------
.button-primary() {
  font-size: @font-size-base;
  .button-variant-primary(@button-primary-color; @button-primary-bg; @button-primary-color; @button-primary-hover-bg; @button-primary-active-bg);
  &.is-plain {
    .button-variant-plain(@button-primary-plain-color; @button-primary-plain-color; @button-primary-plain-hover-color; @button-primary-plain-hover-color; @button-primary-plain-active-color; @button-primary-plain-active-color);
  }
  &.is-text {
    .button-variant-hover-color(@button-primary-text-color; transparent; @button-primary-text-hover-color; @button-primary-text-active-color);
  }
  &.is-light {
    .button-variant-hover-color(@button-primary-text-color; @button-primary-light-bg; @button-primary-text-hover-color; @button-primary-text-active-color);
  }
}

.button-danger() {
  font-size: @font-size-base;
  .button-variant-primary(@button-danger-color; @button-danger-bg; @button-danger-color; @button-danger-hover-bg; @button-danger-active-bg);
  &.is-plain {
    .button-variant-plain(@button-danger-plain-color; @button-danger-plain-border; @button-danger-plain-hover-color; @button-danger-plain-hover-border; @button-danger-plain-active-color; @button-danger-plain-active-border);
  }
  &.is-text {
    .button-variant-hover-color(@button-danger-text-color; transparent; @button-danger-text-hover-color; @button-danger-text-active-color);
  }
  &.is-light {
    .button-variant-primary(@button-danger-text-color; @button-danger-light-bg; @button-danger-light-bg; @button-danger-light-hover-bg; @button-danger-light-active-bg);
  }
}

.button-color(@color; @background; @border) {
  color: @color;
  background-color: @background;
  border-color: @border;
  > a:only-child {
    color: currentColor;
    &::after {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      background: transparent;
      content: '';
    }
  }
}
.button-bg-color(@background) {
  background-color: @background;
  border-color: @background;
}
.button-font-size(@font-size) {
  font-size: @font-size;
}
.button-font-color(@color) {
  color: @color;
}
.button-border-color(@border) {
  border-color: @border;
}
.button-font-border-color(@color) {
  .button-font-color(@color);
  .button-border-color(@color);
}

.button-font-color-border(@color, @border) {
  .button-font-color(@color);
  .button-border-color(@border);
}

.button-disabled(@color: @btn-disable-color; @background: @btn-disable-bg; @border: @btn-disable-border) {
  &-disabled,
  &.disabled,
  &[disabled] {
    &,
    &:hover,
    &:focus,
    &:active,
    &.active {
      .button-color(@color; @background; @border);

      text-shadow: none;
      box-shadow: none;
    }
  }
}