// Underline
@mixin underline($width: 2px, $style: solid, $border-color: $link) {
  border-bottom: 2px solid $border-color; 
}

// Clearfix
@mixin clearfix {
 // For modern browsers
  &:before,
  &:after {
    content:"";
    display:table;
  }  &:after {
    clear:both;
  }  // For IE 6/7 (trigger hasLayout)
  & {
    zoom:1;
    }
}

// BACKGROUND GRADIENT 
@mixin background-gradient($startColor: #3C3C3C, $endColor: #999999) {
    background-color: $startColor;
    background-image: -webkit-gradient(linear, left top, left bottom, from($startColor), to($endColor));
    background-image: -webkit-linear-gradient(top, $startColor, $endColor);
    background-image:    -moz-linear-gradient(top, $startColor, $endColor);
    background-image:     -ms-linear-gradient(top, $startColor, $endColor);
    background-image:      -o-linear-gradient(top, $startColor, $endColor);
    background-image:         linear-gradient(top, $startColor, $endColor);
    filter:            progid:DXImageTransform.Microsoft.gradient(startColorStr=$startColor, EndColorStr=$endColor);
}

// BACKGROUND SIZE
@mixin background-size($width: 100%, $height: 100%) {
     -moz-background-size: $width $height;
  -webkit-background-size: $width $height;
          background-size: $width $height;
}

// BORDER RADIUS
@mixin br($radius: 5px) {
    -moz-border-radius:    $radius;
    -webkit-border-radius: $radius;
    border-radius:         $radius;
}

@mixin border-radius-separate($topLeftRadius: 5px, $topRightRadius: 5px, $bottomLeftRadius: 5px, $bottomRightRadius: 5px) {
    -webkit-border-top-left-radius:     $topLeftRadius;
    -webkit-border-top-right-radius:    $topRightRadius;
    -webkit-border-bottom-right-radius: $bottomLeftRadius;
    -webkit-border-bottom-left-radius:  $bottomRightRadius;

    -moz-border-radius-topleft:     $topLeftRadius;
    -moz-border-radius-topright:    $topRightRadius;
    -moz-border-radius-bottomright: $bottomLeftRadius;
    -moz-border-radius-bottomleft:  $bottomRightRadius;

    border-top-left-radius:     $topLeftRadius;
    border-top-right-radius:    $topRightRadius;
    border-bottom-right-radius: $bottomLeftRadius;
    border-bottom-left-radius:  $bottomRightRadius;
}

/* BOX */
@mixin box($orient: horizontal, $pack: center, $align: center) {
    display: -webkit-box;
    display: -moz-box;
    display: box;

    -webkit-box-orient: $orient;
    -moz-box-orient:    $orient;
    box-orient:         $orient;

    -webkit-box-pack: $pack;
    -moz-box-pack:    $pack;
    box-pack:         $pack;

    -webkit-box-align: $align;
    -moz-box-align:    $align;
    box-align:         $align;
}

/* BOX RGBA */
@mixin box-rgba($r: 60, $g: 3, $b: 12, $opacity: 0.23, $color: #3C3C3C) {
  background-color: transparent;
  background-color: rgba($r, $g, $b, $opacity);
            filter: progid:DXImageTransform.Microsoft.gradient(startColorstr#$color,endColorstr=$color);
            zoom:   1;
}

/* BOX SHADOW */
@mixin bxshd($x: 2px, $y: 2px, $blur: 5px, $color: rgba(0,0,0,.4), $inset: "") {
    -webkit-box-shadow: $inset $x $y $blur $color;
    -moz-box-shadow:    $inset $x $y $blur $color;
    box-shadow:         $inset $x $y $blur $color;
}

/* BOX SIZING */
@mixin box-sizing($type: border-box) {
    -webkit-box-sizing:   $type;
    -moz-box-sizing:      $type;
    box-sizing:           $type;
}

/* COLUMNS */
@mixin columns($count: 3, $gap: 10) {
    -webkit-column-count: $count;
    -moz-column-count:    $count;
    column-count:         $count;

    -webkit-column-gap:   $gap;
    -moz-column-gap:      $gap;
    column-gap:           $gap;
}

/* DOUBLE BORDERS */
@mixin double-borders($colorOne: #3C3C3C, $colorTwo: #999999, $radius: 0) {
    border: 1px solid $colorOne;

    -webkit-box-shadow: 0 0 0 1px $colorTwo;
    -moz-box-shadow:    0 0 0 1px $colorTwo;
    box-shadow:         0 0 0 1px $colorTwo;

    @include border-radius( $radius );
}

/* FLEX */
@mixin flex($value: 1) {
    -webkit-box-flex: $value;
    -moz-box-flex:    $value;
    box-flex:         $value;
}

/* FLIP */
@mixin flip($scaleX: -1) {
	-moz-transform:    scaleX($scaleX);
	-o-transform:      scaleX($scaleX);
	-webkit-transform: scaleX($scaleX);
	transform:         scaleX($scaleX);
	filter:            FlipH;
	-ms-filter:        "FlipH";
}

/* OPACITY */
@mixin opacity($opacity: 0.5) {
    filter:         alpha(opacity=($opacity * 100));
    -ms-filter:     "progid:DXImageTransform.Microsoft.Alpha(Opacity=" + ($opacity * 100) + ")";
    -moz-opacity:   $opacity;
    -khtml-opacity: $opacity;
    opacity:        $opacity;
}

/* ROTATE*/
@mixin rotate($deg: 0, $m11: 0, $m12: 0, $m21: 0, $m22: 0) {
     -moz-transform: rotate($deg + deg);
       -o-transform: rotate($deg + deg);
  -webkit-transform: rotate($deg + deg);
      -ms-transform: rotate($deg + deg);
          transform: rotate($deg + deg);
             filter: progid:DXImageTransform.Microsoft.Matrix(
                     M11=$m11, M12=$m12,M21=$m21, M22=$m22, sizingMethod='auto expand');
               zoom: 1;
}

/* TEXT SHADOW */
@mixin tshd($x: 2px, $y: 2px, $blur: 5px, $color: rgba(0,0,0,.4)) {
    text-shadow: $x $y $blur $color;
}

/* TRANSITION */
@mixin transit($what: all, $length: 1s, $easing: ease-in-out) {
    -moz-transition:    $what $length $easing;
    -o-transition:      $what $length $easing;
    -webkit-transition: $what $length $easing;
    -ms-transition:     $what $length $easing;
    transition:         $what $length $easing;

}
