//

// Buttons

// --------------------------------------------------

// Base styles

// --------------------------------------------------

.btn {

  display: inline-block;

  margin-bottom: 0; // For input.btn

  font-weight: $btn-font-weight;

  text-align: center;

  vertical-align: middle;

  touch-action: manipulation;

  cursor: pointer;

  background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214

  border: 1px solid transparent;

  white-space: nowrap;

  @include button-size($padding-base-vertical, $padding-base-horizontal, $font-size-base, $line-height-base, $btn-border-radius-base);

  @include user-select(none);

  &,

  &:active,

  &.active {

    &:focus,

    &.focus {

      @include tab-focus;

    }

  }

  &:hover,

  &:focus,

  &.focus {

    color: $btn-default-color;

    text-decoration: none;

  }

  &:active,

  &.active {

    outline: 0;

    background-image: none;

    @include box-shadow(inset 0 3px 5px rgba(0,0,0,.125));

  }

  &.disabled,

  &[disabled],

  fieldset[disabled] & {

    cursor: $cursor-disabled;

    @include opacity(.65);

    @include box-shadow(none);

  }

  // [converter] extracted a& to a.btn

}

a.btn {

  &.disabled,

  fieldset[disabled] & {

    pointer-events: none; // Future-proof disabling of clicks on `<a>` elements

  }

}

// Alternate buttons

// --------------------------------------------------

.btn-default {

  @include button-variant($btn-default-color, $btn-default-bg, $btn-default-border);

}

.btn-primary {

  @include button-variant($btn-primary-color, $btn-primary-bg, $btn-primary-border);

}

// Success appears as green

.btn-success {

  @include button-variant($btn-success-color, $btn-success-bg, $btn-success-border);

}

// Info appears as blue-green

.btn-info {

  @include button-variant($btn-info-color, $btn-info-bg, $btn-info-border);

}

// Warning appears as orange

.btn-warning {

  @include button-variant($btn-warning-color, $btn-warning-bg, $btn-warning-border);

}

// Danger and error appear as red

.btn-danger {

  @include button-variant($btn-danger-color, $btn-danger-bg, $btn-danger-border);

}

// Link buttons

// -------------------------

// Make a button look and behave like a link

.btn-link {

  color: $link-color;

  font-weight: normal;

  border-radius: 0;

  &,

  &:active,

  &.active,

  &[disabled],

  fieldset[disabled] & {

    background-color: transparent;

    @include box-shadow(none);

  }

  &,

  &:hover,

  &:focus,

  &:active {

    border-color: transparent;

  }

  &:hover,

  &:focus {

    color: $link-hover-color;

    text-decoration: $link-hover-decoration;

    background-color: transparent;

  }

  &[disabled],

  fieldset[disabled] & {

    &:hover,

    &:focus {

      color: $btn-link-disabled-color;

      text-decoration: none;

    }

  }

}

// Button Sizes

// --------------------------------------------------

.btn-lg {

  // line-height: ensure even-numbered height of button next to large input

  @include button-size($padding-large-vertical, $padding-large-horizontal, $font-size-large, $line-height-large, $btn-border-radius-large);

}

.btn-sm {

  // line-height: ensure proper height of button next to small input

  @include button-size($padding-small-vertical, $padding-small-horizontal, $font-size-small, $line-height-small, $btn-border-radius-small);

}

.btn-xs {

  @include button-size($padding-xs-vertical, $padding-xs-horizontal, $font-size-small, $line-height-small, $btn-border-radius-small);

}

// Block button

// --------------------------------------------------

.btn-block {

  display: block;

  width: 100%;

}

// Vertically space out multiple block buttons

.btn-block + .btn-block {

  margin-top: 5px;

}

// Specificity overrides

input[type="submit"],

input[type="reset"],

input[type="button"] {

  &.btn-block {

    width: 100%;

  }

}