//
// Buttons
// ==================================================

// Base styles
// --------------------------------------------------

// Core styles
.btn
{
  font-family: @headings-font-family;
  display: inline-block;
  margin-bottom: 0; // For input.btn
  font-weight: @btn-font-weight;
  text-align: center;
  vertical-align: middle;
  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;
  .button-size(@padding-base-vertical; @padding-base-horizontal; @font-size-base; @line-height-base; @border-radius-base);
  .user-select(none);
  .transition(all,@animation-speed-slow,@animation-type);
  @shadow: inset 0 1px 0 rgba(255,255,255,.15), 0 1px 1px rgba(0,0,0,.075);
  // .box-shadow(@shadow);

  &:focus
  {
    .tab-focus();
  }

  &:hover,
  &:focus
  {
    color: @btn-default-color;
    text-decoration: none;
  }

  &:active,
  &.active
  {
    outline: none;
    background-image: none;
    .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
  }

  &.disabled,
  &[disabled],
  fieldset[disabled] &
  {
    cursor: not-allowed;
    pointer-events: none; // Future-proof disabling of clicks
    .opacity(.65);
    .box-shadow(none);
  }

}


// Alternate buttons
// --------------------------------------------------

// .btn-default,
.btn
{
  .button-variant(@btn-default-color; @btn-default-bg; @btn-default-border);
  text-shadow: 0 1px 0 #fff; border-color: #ccc;
}
.btn-primary
{
  .button-variant(@btn-primary-color; @btn-primary-bg; @btn-primary-border);
  text-shadow: 0 -1px 0 rgba(0,0,0,.2);
}
// Warning appears as orange
.btn-warning
{
  .button-variant(@btn-warning-color; @btn-warning-bg; @btn-warning-border);
  text-shadow: 0 -1px 0 rgba(0,0,0,.2);
}
// Danger and error appear as red
.btn-danger
{
  .button-variant(@btn-danger-color; @btn-danger-bg; @btn-danger-border);
  text-shadow: 0 -1px 0 rgba(0,0,0,.2);
}
// Success appears as green
.btn-success
{
  .button-variant(@btn-success-color; @btn-success-bg; @btn-success-border);
  text-shadow: 0 -1px 0 rgba(0,0,0,.2);
}
// Info appears as blue-green
.btn-info
{
  .button-variant(@btn-info-color; @btn-info-bg; @btn-info-border);
  text-shadow: 0 -1px 0 rgba(0,0,0,.2);
}


// Link buttons
// -------------------------

// Make a button look and behave like a link
.btn-link
{
  color: @link-color;
  font-weight: normal;
  cursor: pointer;
  text-shadow: none;
  box-shadow: none;
  background: none;

  &,
  &:active,
  &[disabled],
  fieldset[disabled] &,
  &:hover,
  &:focus
  {
    border-color: transparent;
    .box-shadow(none);
  }
  &:hover,
  &:focus
  {
    color: @link-hover-color;
  }
  &[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
  .button-size(@padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @border-radius-base);
}
.btn-sm,
.btn-xs,.btn-mini
{
  // line-height: ensure proper height of button next to small input
  .button-size(@padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @border-radius-base);
}
.btn-xs,.btn-mini
{
  padding: 1px 5px;
}


// Block button
// --------------------------------------------------

.btn-block
{
  display: block;
  width: 100%;
  padding-left: 0;
  padding-right: 0;
}

// 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%;
  }
}


// Reposition the caret
.btn .caret
{
  margin-left: 0;
}
// Carets in other button sizes
.btn-lg .caret
{
  border-width: @caret-width-large @caret-width-large 0;
  border-bottom-width: 0;
}
// Upside down carets for .dropup
.dropup .btn-lg .caret
{
  border-width: 0 @caret-width-large @caret-width-large;
}


// Checkbox and radio options
[data-toggle="buttons"] > .btn > input[type="radio"],
[data-toggle="buttons"] > .btn > input[type="checkbox"]
{
  display: none;
}
