// // 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;
.button-size(@padding-base-vertical; @padding-base-horizontal; @font-size-base; @line-height-base; @btn-border-radius-base);
.user-select(none);

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

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

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

&.disabled,
&[disabled],
fieldset[disabled] & {
  cursor: @cursor-disabled;
  .opacity(.65);
  .box-shadow(none);
}

a& {
  &.disabled,
  fieldset[disabled] & {
    pointer-events: none; // Future-proof disabling of clicks on `<a>` elements
  }
}

}

// Alternate buttons // ————————————————–

.btn-default {

.button-variant(@btn-default-color; @btn-default-bg; @btn-default-border);

} .btn-primary {

.button-variant(@btn-primary-color; @btn-primary-bg; @btn-primary-border);

} // Success appears as green .btn-success {

.button-variant(@btn-success-color; @btn-success-bg; @btn-success-border);

} // Info appears as blue-green .btn-info {

.button-variant(@btn-info-color; @btn-info-bg; @btn-info-border);

} // Warning appears as orange .btn-warning {

.button-variant(@btn-warning-color; @btn-warning-bg; @btn-warning-border);

} // Danger and error appear as red .btn-danger {

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

} .btn-xs {

.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, input, input {

&.btn-block {
  width: 100%;
}

}