//
// Mixins
// --------------------------------------------------

// Utilities
@import "mixins/hide-text.less";
@import "mixins/opacity.less";
@import "mixins/image.less";
@import "mixins/labels.less";
@import "mixins/reset-filter.less";
@import "mixins/resize.less";
@import "mixins/responsive-visibility.less";
@import "mixins/size.less";
@import "mixins/tab-focus.less";
@import "mixins/reset-text.less";
@import "mixins/text-emphasis.less";
@import "mixins/text-overflow.less";
@import "mixins/vendor-prefixes.less";

// Components
@import "mixins/buttons.less";
@import "mixins/card.less";
@import "mixins/list-group.less";
@import "mixins/nav-divider.less";
@import "mixins/forms.less";
@import "mixins/progress-bar.less";
@import "mixins/table-row.less";

// Skins
@import "mixins/background-variant.less";
@import "mixins/border-radius.less";
@import "mixins/gradients.less";

// Layout
@import "mixins/clearfix.less";
@import "mixins/center-block.less";
@import "mixins/nav-vertical-align.less";
@import "mixins/grid-framework.less";
@import "mixins/grid.less";



// 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,
  .selectize-input {
    color: @textColor;
  }
  input,
  select,
  textarea,
  .selectize-input {
    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);
}



// 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;
}


// 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%);
}

// COMPONENT MIXINS
// --------------------------------------------------

// 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();
}

// 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));
    }

    [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);

  }
}