// // Mixins // ————————————————–

// UTILITY MIXINS // ————————————————–

// Clearfix // ——– // For clearing floats like a boss h5bp.com/q .clearfix {

*zoom: 1;
&:before,
&:after {
  display: table;
  content: "";
  // Fixes Opera/contenteditable bug:
  // http://nicolasgallagher.com/micro-clearfix-hack/#comment-36952
  line-height: 0;
}
&:after {
  clear: both;
}

}

// Webkit-style focus // —————— .tab-focus() {

// Default
outline: thin dotted #333;
// Webkit
outline: 5px auto -webkit-focus-ring-color;
outline-offset: -2px;

}

// Center-align a block level element // ———————————- .center-block() {

display: block;
margin-left: auto;
margin-right: auto;

}

// IE7 inline-block // —————- .ie7-inline-block() {

*display: inline; /* IE7 inline-block hack */
*zoom: 1;

}

// IE7 likes to collapse whitespace on either side of the inline-block elements. // Ems because we're attempting to match the width of a space character. Left // version is for form buttons, which typically come after other elements, and // right version is for icons, which come before. Applying both is ok, but it will // mean that space between those elements will be .6em (~2 space characters) in IE7, // instead of the 1 space in other browsers. .ie7-restore-left-whitespace() {

*margin-left: .3em;

&:first-child {
  *margin-left: 0;
}

}

.ie7-restore-right-whitespace() {

*margin-right: .3em;

}

// Sizing shortcuts // ————————- .size(@height, @width) {

width: @width;
height: @height;

} .square(@size) {

.size(@size, @size);

}

// Placeholder text // ————————- .placeholder(@color: @placeholderText) {

&:-moz-placeholder {
  color: @color;
}
&:-ms-input-placeholder {
  color: @color;
}
&::-webkit-input-placeholder {
  color: @color;
}

}

// Text overflow // ————————- // Requires inline-block or block for proper styling .text-overflow() {

overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;

}

// CSS image replacement // ————————- // Source: github.com/h5bp/html5-boilerplate/commit/aa0396eae757 .hide-text {

font: 0/0 a;
color: transparent;
text-shadow: none;
background-color: transparent;
border: 0;

}

// FONTS // ————————————————–

font {

#family {
  .serif() {
    font-family: @serifFontFamily;
  }
  .sans-serif() {
    font-family: @sansFontFamily;
  }
  .monospace() {
    font-family: @monoFontFamily;
  }
}
.shorthand(@size: @baseFontSize, @weight: normal, @lineHeight: @baseLineHeight) {
  font-size: @size;
  font-weight: @weight;
  line-height: @lineHeight;
}
.serif(@size: @baseFontSize, @weight: normal, @lineHeight: @baseLineHeight) {
  #font > #family > .serif;
  #font > .shorthand(@size, @weight, @lineHeight);
}
.sans-serif(@size: @baseFontSize, @weight: normal, @lineHeight: @baseLineHeight) {
  #font > #family > .sans-serif;
  #font > .shorthand(@size, @weight, @lineHeight);
}
.monospace(@size: @baseFontSize, @weight: normal, @lineHeight: @baseLineHeight) {
  #font > #family > .monospace;
  #font > .shorthand(@size, @weight, @lineHeight);
}

}

// FORMS // ————————————————–

// Block level inputs .input-block-level {

display: block;
width: 100%;
min-height: @inputHeight; // Make inputs at least the height of their button counterpart (base line-height + padding + border)
.box-sizing(border-box); // Makes inputs behave like true block-level elements

}

// Mixin for form field states .formFieldState(@textColor: #555, @borderColor: ccc, @backgroundColor: f5f5f5) {

// Set the text color
.control-label,
.help-block,
.help-inline {
  color: @textColor;
}
// Style inputs accordingly
.checkbox,
.radio,
input,
select,
textarea {
  color: @textColor;
}
input,
select,
textarea {
  border-color: @borderColor;
  .box-shadow(inset 0 1px 1px rgba(0,0,0,.075)); // Redeclare so transitions work
  &:focus {
    border-color: darken(@borderColor, 10%);
    @shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten(@borderColor, 20%);
    .box-shadow(@shadow);
  }
}
// Give a small background color for input-prepend/-append
.input-prepend .add-on,
.input-append .add-on {
  color: @textColor;
  background-color: @backgroundColor;
  border-color: @textColor;
}

}

// CSS3 PROPERTIES // ————————————————–

// Border Radius .border-radius(@radius) {

-webkit-border-radius: @radius;
   -moz-border-radius: @radius;
        border-radius: @radius;

}

// Single Corner Border Radius .border-top-left-radius(@radius) {

-webkit-border-top-left-radius: @radius;
    -moz-border-radius-topleft: @radius;
        border-top-left-radius: @radius;

} .border-top-right-radius(@radius) {

-webkit-border-top-right-radius: @radius;
    -moz-border-radius-topright: @radius;
        border-top-right-radius: @radius;

} .border-bottom-right-radius(@radius) {

-webkit-border-bottom-right-radius: @radius;
    -moz-border-radius-bottomright: @radius;
        border-bottom-right-radius: @radius;

} .border-bottom-left-radius(@radius) {

-webkit-border-bottom-left-radius: @radius;
    -moz-border-radius-bottomleft: @radius;
        border-bottom-left-radius: @radius;

}

// Single Side Border Radius .border-top-radius(@radius) {

.border-top-right-radius(@radius);
.border-top-left-radius(@radius);

} .border-right-radius(@radius) {

.border-top-right-radius(@radius);
.border-bottom-right-radius(@radius);

} .border-bottom-radius(@radius) {

.border-bottom-right-radius(@radius);
.border-bottom-left-radius(@radius);

} .border-left-radius(@radius) {

.border-top-left-radius(@radius);
.border-bottom-left-radius(@radius);

}

// Drop shadows .box-shadow(@shadow) {

-webkit-box-shadow: @shadow;
   -moz-box-shadow: @shadow;
        box-shadow: @shadow;

}

// Transitions .transition(@transition) {

-webkit-transition: @transition;
   -moz-transition: @transition;
     -o-transition: @transition;
        transition: @transition;

} .transition-delay(@transition-delay) {

-webkit-transition-delay: @transition-delay;
   -moz-transition-delay: @transition-delay;
     -o-transition-delay: @transition-delay;
        transition-delay: @transition-delay;

} .transition-duration(@transition-duration) {

-webkit-transition-duration: @transition-duration;
   -moz-transition-duration: @transition-duration;
     -o-transition-duration: @transition-duration;
        transition-duration: @transition-duration;

}

// Transformations .rotate(@degrees) {

-webkit-transform: rotate(@degrees);
   -moz-transform: rotate(@degrees);
    -ms-transform: rotate(@degrees);
     -o-transform: rotate(@degrees);
        transform: rotate(@degrees);

} .scale(@ratio) {

-webkit-transform: scale(@ratio);
   -moz-transform: scale(@ratio);
    -ms-transform: scale(@ratio);
     -o-transform: scale(@ratio);
        transform: scale(@ratio);

} .translate(@x, @y) {

-webkit-transform: translate(@x, @y);
   -moz-transform: translate(@x, @y);
    -ms-transform: translate(@x, @y);
     -o-transform: translate(@x, @y);
        transform: translate(@x, @y);

} .skew(@x, @y) {

-webkit-transform: skew(@x, @y);
   -moz-transform: skew(@x, @y);
    -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twbs/bootstrap/issues/4885
     -o-transform: skew(@x, @y);
        transform: skew(@x, @y);
-webkit-backface-visibility: hidden; // See https://github.com/twbs/bootstrap/issues/5319

} .translate3d(@x, @y, @z) {

-webkit-transform: translate3d(@x, @y, @z);
   -moz-transform: translate3d(@x, @y, @z);
     -o-transform: translate3d(@x, @y, @z);
        transform: translate3d(@x, @y, @z);

}

// Backface visibility // Prevent browsers from flickering when using CSS 3D transforms. // Default value is `visible`, but can be changed to `hidden // See git pull github.com/dannykeane/bootstrap.git backface-visibility for examples .backface-visibility(@visibility){

-webkit-backface-visibility: @visibility;
   -moz-backface-visibility: @visibility;
        backface-visibility: @visibility;

}

// Background clipping // Heads up: FF 3.6 and under need “padding” instead of “padding-box” .background-clip(@clip) {

-webkit-background-clip: @clip;
   -moz-background-clip: @clip;
        background-clip: @clip;

}

// Background sizing .background-size(@size) {

-webkit-background-size: @size;
   -moz-background-size: @size;
     -o-background-size: @size;
        background-size: @size;

}

// Box sizing .box-sizing(@boxmodel) {

-webkit-box-sizing: @boxmodel;
   -moz-box-sizing: @boxmodel;
        box-sizing: @boxmodel;

}

// User select // For selecting text on the page .user-select(@select) {

-webkit-user-select: @select;
   -moz-user-select: @select;
    -ms-user-select: @select;
     -o-user-select: @select;
        user-select: @select;

}

// Resize anything .resizable(@direction) {

resize: @direction; // Options: horizontal, vertical, both
overflow: auto; // Safari fix

}

// CSS3 Content Columns .content-columns(@columnCount, @columnGap: @gridGutterWidth) {

-webkit-column-count: @columnCount;
   -moz-column-count: @columnCount;
        column-count: @columnCount;
-webkit-column-gap: @columnGap;
   -moz-column-gap: @columnGap;
        column-gap: @columnGap;

}

// Optional hyphenation .hyphens(@mode: auto) {

word-wrap: break-word;
-webkit-hyphens: @mode;
   -moz-hyphens: @mode;
    -ms-hyphens: @mode;
     -o-hyphens: @mode;
        hyphens: @mode;

}

// Opacity .opacity(@opacity) {

opacity: @opacity / 100;
filter: ~"alpha(opacity=@{opacity})";

}

// BACKGROUNDS // ————————————————–

// Add an alphatransparency value to any background or border color (via Elyse Holladay) translucent {

.background(@color: @white, @alpha: 1) {
  background-color: hsla(hue(@color), saturation(@color), lightness(@color), @alpha);
}
.border(@color: @white, @alpha: 1) {
  border-color: hsla(hue(@color), saturation(@color), lightness(@color), @alpha);
  .background-clip(padding-box);
}

}

// Gradient Bar Colors for buttons and alerts .gradientBar(@primaryColor, @secondaryColor, @textColor: fff, @textShadow: 0 -1px 0 rgba(0,0,0,.25)) {

color: @textColor;
text-shadow: @textShadow;
#gradient > .vertical(@primaryColor, @secondaryColor);
border-color: @secondaryColor @secondaryColor darken(@secondaryColor, 15%);
border-color: rgba(0,0,0,.1) rgba(0,0,0,.1) fadein(rgba(0,0,0,.1), 15%);

}

// Gradients gradient {

.horizontal(@startColor: #555, @endColor: #333) {
  background-color: @endColor;
  background-image: -moz-linear-gradient(left, @startColor, @endColor); // FF 3.6+
  background-image: -webkit-gradient(linear, 0 0, 100% 0, from(@startColor), to(@endColor)); // Safari 4+, Chrome 2+
  background-image: -webkit-linear-gradient(left, @startColor, @endColor); // Safari 5.1+, Chrome 10+
  background-image: -o-linear-gradient(left, @startColor, @endColor); // Opera 11.10
  background-image: linear-gradient(to right, @startColor, @endColor); // Standard, IE10
  background-repeat: repeat-x;
  filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",argb(@startColor),argb(@endColor))); // IE9 and down
}
.vertical(@startColor: #555, @endColor: #333) {
  background-color: mix(@startColor, @endColor, 60%);
  background-image: -moz-linear-gradient(top, @startColor, @endColor); // FF 3.6+
  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@startColor), to(@endColor)); // Safari 4+, Chrome 2+
  background-image: -webkit-linear-gradient(top, @startColor, @endColor); // Safari 5.1+, Chrome 10+
  background-image: -o-linear-gradient(top, @startColor, @endColor); // Opera 11.10
  background-image: linear-gradient(to bottom, @startColor, @endColor); // Standard, IE10
  background-repeat: repeat-x;
  filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down
}
.directional(@startColor: #555, @endColor: #333, @deg: 45deg) {
  background-color: @endColor;
  background-repeat: repeat-x;
  background-image: -moz-linear-gradient(@deg, @startColor, @endColor); // FF 3.6+
  background-image: -webkit-linear-gradient(@deg, @startColor, @endColor); // Safari 5.1+, Chrome 10+
  background-image: -o-linear-gradient(@deg, @startColor, @endColor); // Opera 11.10
  background-image: linear-gradient(@deg, @startColor, @endColor); // Standard, IE10
}
.horizontal-three-colors(@startColor: #00b3ee, @midColor: #7a43b6, @colorStop: 50%, @endColor: #c3325f) {
  background-color: mix(@midColor, @endColor, 80%);
  background-image: -webkit-gradient(left, linear, 0 0, 0 100%, from(@startColor), color-stop(@colorStop, @midColor), to(@endColor));
  background-image: -webkit-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
  background-image: -moz-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
  background-image: -o-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
  background-image: linear-gradient(to right, @startColor, @midColor @colorStop, @endColor);
  background-repeat: no-repeat;
  filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down, gets no color-stop at all for proper fallback
}

.vertical-three-colors(@startColor: #00b3ee, @midColor: #7a43b6, @colorStop: 50%, @endColor: #c3325f) {
  background-color: mix(@midColor, @endColor, 80%);
  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@startColor), color-stop(@colorStop, @midColor), to(@endColor));
  background-image: -webkit-linear-gradient(@startColor, @midColor @colorStop, @endColor);
  background-image: -moz-linear-gradient(top, @startColor, @midColor @colorStop, @endColor);
  background-image: -o-linear-gradient(@startColor, @midColor @colorStop, @endColor);
  background-image: linear-gradient(@startColor, @midColor @colorStop, @endColor);
  background-repeat: no-repeat;
  filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down, gets no color-stop at all for proper fallback
}
.radial(@innerColor: #555, @outerColor: #333) {
  background-color: @outerColor;
  background-image: -webkit-gradient(radial, center center, 0, center center, 460, from(@innerColor), to(@outerColor));
  background-image: -webkit-radial-gradient(circle, @innerColor, @outerColor);
  background-image: -moz-radial-gradient(circle, @innerColor, @outerColor);
  background-image: -o-radial-gradient(circle, @innerColor, @outerColor);
  background-repeat: no-repeat;
}
.striped(@color: #555, @angle: 45deg) {
  background-color: @color;
  background-image: -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.25, rgba(255,255,255,.15)), color-stop(.25, transparent), color-stop(.5, transparent), color-stop(.5, rgba(255,255,255,.15)), color-stop(.75, rgba(255,255,255,.15)), color-stop(.75, transparent), to(transparent));
  background-image: -webkit-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
  background-image: -moz-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
  background-image: -o-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
  background-image: linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
}

} // Reset filters for IE .reset-filter() {

filter: e(%("progid:DXImageTransform.Microsoft.gradient(enabled = false)"));

}

// COMPONENT MIXINS // ————————————————–

// Horizontal dividers // ————————- // Dividers (basically an hr) within dropdowns and nav lists .nav-divider(@top: e5e5e5, @bottom: @white) {

// IE7 needs a set width since we gave a height. Restricting just
// to IE7 to keep the 1px left/right space in other browsers.
// It is unclear where IE is getting the extra space that we need
// to negative-margin away, but so it goes.
*width: 100%;
height: 1px;
margin: ((@baseLineHeight / 2) - 1) 1px; // 8px 1px
*margin: -5px 0 5px;
overflow: hidden;
background-color: @top;
border-bottom: 1px solid @bottom;

}

// Button backgrounds // —————— .buttonBackground(@startColor, @endColor, @textColor: fff, @textShadow: 0 -1px 0 rgba(0,0,0,.25)) {

// gradientBar will set the background to a pleasing blend of these, to support IE<=9
.gradientBar(@startColor, @endColor, @textColor, @textShadow);
*background-color: @endColor; /* Darken IE7 buttons by default so they stand out more given they won't have borders */
.reset-filter();

// in these cases the gradient won't cover the background, so we override
&:hover, &:focus, &:active, &.active, &.disabled, &[disabled] {
  color: @textColor;
  background-color: @endColor;
  *background-color: darken(@endColor, 5%);
}

// IE 7 + 8 can't handle box-shadow to show active, so we darken a bit ourselves
&:active,
&.active {
  background-color: darken(@endColor, 10%) e("\9");
}

}

// Navbar vertical align // ————————- // Vertically center elements in the navbar. // Example: an element has a height of 30px, so write out `.navbarVerticalAlign(30px);` to calculate the appropriate top margin. .navbarVerticalAlign(@elementHeight) {

margin-top: (@navbarHeight - @elementHeight) / 2;

}

// Grid System // ———–

// Centered container element .container-fixed() {

margin-right: auto;
margin-left: auto;
.clearfix();

}

// Table columns .tableColumns(@columnSpan: 1) {

float: none; // undo default grid column styles
width: ((@gridColumnWidth) * @columnSpan) + (@gridGutterWidth * (@columnSpan - 1)) - 16; // 16 is total padding on left and right of table cells
margin-left: 0; // undo default grid column styles

}

// Make a Grid // Use .makeRow and .makeColumn to assign semantic layouts grid system behavior .makeRow() {

margin-left: @gridGutterWidth * -1;
.clearfix();

} .makeColumn(@columns: 1, @offset: 0) {

float: left;
margin-left: (@gridColumnWidth * @offset) + (@gridGutterWidth * (@offset - 1)) + (@gridGutterWidth * 2);
width: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns - 1));

}

// The Grid grid {

.core (@gridColumnWidth, @gridGutterWidth) {

  .spanX (@index) when (@index > 0) {
    .span@{index} { .span(@index); }
    .spanX(@index - 1);
  }
  .spanX (0) {}

  .offsetX (@index) when (@index > 0) {
    .offset@{index} { .offset(@index); }
    .offsetX(@index - 1);
  }
  .offsetX (0) {}

  .offset (@columns) {
    margin-left: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns + 1));
  }

  .span (@columns) {
    width: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns - 1));
  }

  .row {
    margin-left: @gridGutterWidth * -1;
    .clearfix();
  }

  [class*="span"] {
    float: left;
    min-height: 1px; // prevent collapsing columns
    margin-left: @gridGutterWidth;
  }

  // Set the container width, and override it for fixed navbars in media queries
  .container,
  .navbar-static-top .container,
  .navbar-fixed-top .container,
  .navbar-fixed-bottom .container { .span(@gridColumns); }

  // generate .spanX and .offsetX
  .spanX (@gridColumns);
  .offsetX (@gridColumns);

}

.fluid (@fluidGridColumnWidth, @fluidGridGutterWidth) {

  .spanX (@index) when (@index > 0) {
    .span@{index} { .span(@index); }
    .spanX(@index - 1);
  }
  .spanX (0) {}

  .offsetX (@index) when (@index > 0) {
    .offset@{index} { .offset(@index); }
    .offset@{index}:first-child { .offsetFirstChild(@index); }
    .offsetX(@index - 1);
  }
  .offsetX (0) {}

  .offset (@columns) {
    margin-left: (@fluidGridColumnWidth * @columns) + (@fluidGridGutterWidth * (@columns - 1)) + (@fluidGridGutterWidth*2);
        *margin-left: (@fluidGridColumnWidth * @columns) + (@fluidGridGutterWidth * (@columns - 1)) - (.5 / @gridRowWidth * 100 * 1%) + (@fluidGridGutterWidth*2) - (.5 / @gridRowWidth * 100 * 1%);
  }

  .offsetFirstChild (@columns) {
    margin-left: (@fluidGridColumnWidth * @columns) + (@fluidGridGutterWidth * (@columns - 1)) + (@fluidGridGutterWidth);
    *margin-left: (@fluidGridColumnWidth * @columns) + (@fluidGridGutterWidth * (@columns - 1)) - (.5 / @gridRowWidth * 100 * 1%) + @fluidGridGutterWidth - (.5 / @gridRowWidth * 100 * 1%);
  }

  .span (@columns) {
    width: (@fluidGridColumnWidth * @columns) + (@fluidGridGutterWidth * (@columns - 1));
    *width: (@fluidGridColumnWidth * @columns) + (@fluidGridGutterWidth * (@columns - 1)) - (.5 / @gridRowWidth * 100 * 1%);
  }

  .row-fluid {
    width: 100%;
    .clearfix();
    [class*="span"] {
      .input-block-level();
      float: left;
      margin-left: @fluidGridGutterWidth;
      *margin-left: @fluidGridGutterWidth - (.5 / @gridRowWidth * 100 * 1%);
    }
    [class*="span"]:first-child {
      margin-left: 0;
    }

    // Space grid-sized controls properly if multiple per line
    .controls-row [class*="span"] + [class*="span"] {
      margin-left: @fluidGridGutterWidth;
    }

    // generate .spanX and .offsetX
    .spanX (@gridColumns);
    .offsetX (@gridColumns);
  }

}

.input(@gridColumnWidth, @gridGutterWidth) {

  .spanX (@index) when (@index > 0) {
    input.span@{index}, textarea.span@{index}, .uneditable-input.span@{index} { .span(@index); }
    .spanX(@index - 1);
  }
  .spanX (0) {}

  .span(@columns) {
    width: ((@gridColumnWidth) * @columns) + (@gridGutterWidth * (@columns - 1)) - 14;
  }

  input,
  textarea,
  .uneditable-input {
    margin-left: 0; // override margin-left from core grid system
  }

  // Space grid-sized controls properly if multiple per line
  .controls-row [class*="span"] + [class*="span"] {
    margin-left: @gridGutterWidth;
  }

  // generate .spanX
  .spanX (@gridColumns);

}

}