//	==================================================
//	USEFUL PROPERTY SETS TO RE-USE IN .LESS FILES
//	==================================================


//	CLEAR FLOATS (apply to container of floats)
//	---------------------------------------------------
.clearfix() {
	zoom: 1; //FOR IE

	&:before, &:after {
		display: table;
		content: "";
		zoom: 1; //FOR IE
	}

	&:after {clear: both;}
}

//	CENTER BLOCK LEVEL ELEMENT
//	---------------------------------------------------
.center-block() {
	display: block;
	margin-left: auto;
	margin-right: auto;
}

//	SET ELEMENT SIZES
//	---------------------------------------------------
.size(@width: 5px,@height: 5px) {
	height: @height;
	width: @width;
}

//	INPUT PLACEHOLDER TEXT
//	---------------------------------------------------
.placeholder(@color: @gray25) {
	:-moz-placeholder {
		color: @color;
	}
	::-webkit-input-placeholder {
		color: @color;
	}
}


//	FONT STACKS
//	---------------------------------------------------
#font {
	.shorthand(@weight: normal, @size: @baseFontSize, @lineHeight: @baseLineHeight) {
		font-size: @size;
		font-weight: @weight;
		line-height: @lineHeight;
	}
	.sans-serif(@weight: normal, @size: @baseFontSize, @lineHeight: @baseLineHeight) {
		font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
		font-size: @size;
		font-weight: @weight;
		line-height: @lineHeight;
	}
	.serif(@weight: normal, @size: @baseFontSize, @lineHeight: @baseLineHeight) {
		font-family: "Georgia", Times New Roman, Times, serif;
		font-size: @size;
		font-weight: @weight;
		line-height: @lineHeight;
	}
	.monospace(@weight: normal, @baseFontSize, @lineHeight: @baseLineHeight) {
		font-family: "Monaco", Courier New, monospace;
		font-size: @size;
		font-weight: @weight;
		line-height: @lineHeight;
	}
}

//	GRID HELPERS
//	---------------------------------------------------
.fixed-container() {
	width: @siteWidth;
	margin-left: auto;
	margin-right: auto;
	.clear();
}
.columns(@columnSpan: 1) {
	width: (@gridColumnWidth * @columnSpan) + (@gridGutterWidth * (@columnSpan - 1));
}
.push(@columnOffset: 1) {
	margin-left: (@gridColumnWidth * @columnOffset) + (@gridGutterWidth * (@columnOffset - 1)) + @extraSpace;
}
.pull(@columnOffset: 1) {
	margin-left: -((@gridColumnWidth * @columnOffset) + (@gridGutterWidth * (@columnOffset - 1)));
}
// Necessary grid styles for every column to make them appear next to each other horizontally
.gridColumn() {
	display: inline;
	float: left;
	margin-left: @gridGutterWidth;
}
// makeColumn can be used to mark any element (e.g., .content-primary) as a column without changing markup to .span something
.makeColumn(@columnSpan: 1) {
	.gridColumn();
	.columns(@columnSpan);
}


//	BORDER-RADIUS
//	---------------------------------------------------
.border-radius(@radius: 3px) {
	-webkit-border-radius: @radius;
	-moz-border-radius: @radius;
	border-radius: @radius;
}

//	BOX-SHADOWS (prepend with "inset" if needed)
//	---------------------------------------------------
.box-shadow(@shadow: 0 1px 3px rgba(0,0,0,.25)) {
	-webkit-box-shadow: @shadow;
	-moz-box-shadow: @shadow;
	box-shadow: @shadow;
}

//	CSS3 TRANSITIONS
//	---------------------------------------------------
.transition(@transition) {
	-webkit-transition: @transition;
	-moz-transition: @transition;
	-ms-transition: @transition;
	-o-transition: @transition;
	transition: @transition;
}

//	CSS3 TRANSLATE
//	---------------------------------------------------
.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);
}

//	CSS3 ROTATE
//	---------------------------------------------------
.rotate(@deg) {
	-webkit-transform: rotate(@deg);
	-moz-transform: rotate(@deg);
	-ms-transform: rotate(@deg);
	-o-transform: rotate(@deg);
	transform: rotate(@deg);
}

//	BACKGROUND CLIP (border-box|padding-box|content-box)
//	---------------------------------------------------
.background-clip(@clip) {
	-webkit-background-clip: @clip;
	-moz-background-clip: @clip;
	background-clip: @clip;
}

//	CSS3 COLUMNS
//	---------------------------------------------------
.content-columns(@columnCount, @columnGap: 20px) {
	-webkit-column-count: @columnCount;
	-moz-column-count: @columnCount;
	column-count: @columnCount;
	-webkit-column-gap: @columnGap;
	-moz-column-gap: @columnGap;
	column-gap: @columnGap;
}

//	MAKE AN ELEMENT RESIZABLE
//	---------------------------------------------------
.resizable(@direction: both) {
	resize: @direction; // Options are horizontal, vertical, both
	overflow: auto; // Safari fix
}

//	TRANSLUCENT COLOR
//	---------------------------------------------------
// 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;
	}
}

//	GRADIENTS
//	---------------------------------------------------

//for buttons and alerts
.gradientBar(@primaryColor, @secondaryColor) {
	#gradient > .vertical(@primaryColor, @secondaryColor);
	text-shadow: 0 -1px 0 rgba(0,0,0,.25);
	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%);
}

//for everything else
#gradient {
	.horizontal (@startColor: #555, @endColor: #333) {
		background-color: @endColor;
		background-repeat: repeat-x;
		background-image: -khtml-gradient(linear, left top, right top, from(@startColor), to(@endColor)); // Konqueror
		background-image: -moz-linear-gradient(left, @startColor, @endColor); // FF 3.6+
		background-image: -ms-linear-gradient(left, @startColor, @endColor); // IE10
		background-image: -webkit-gradient(linear, left top, right top, color-stop(0%, @startColor), color-stop(100%, @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(left, @startColor, @endColor); // Le standard
		filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",@startColor,@endColor)); // IE9 and down
	}
	.vertical (@startColor: #555, @endColor: #333) {
		background-color: @endColor;
		background-repeat: repeat-x;
		background-image: -khtml-gradient(linear, left top, left bottom, from(@startColor), to(@endColor)); // Konqueror
		background-image: -moz-linear-gradient(top, @startColor, @endColor); // FF 3.6+
		background-image: -ms-linear-gradient(top, @startColor, @endColor); // IE10
		background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, @startColor), color-stop(100%, @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(top, @startColor, @endColor); // The standard
		filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",@startColor,@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: -ms-linear-gradient(@deg, @startColor, @endColor); // IE10
		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); // The standard
	}
	.vertical-three-colors(@startColor: #00b3ee, @midColor: #7a43b6, @colorStop: 50%, @endColor: #c3325f) {
		background-color: @endColor;
		background-repeat: no-repeat;
		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: -ms-linear-gradient(@startColor, @midColor @colorStop, @endColor);
		background-image: -o-linear-gradient(@startColor, @midColor @colorStop, @endColor);
		background-image: linear-gradient(@startColor, @midColor @colorStop, @endColor);
		filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",@startColor,@endColor)); // IE9 and down, gets no color-stop at all for proper fallback
	}
}

//	RESET FILTERS FOR IE
//	---------------------------------------------------
.reset-filter() {
	filter: e(%("progid:DXImageTransform.Microsoft.gradient(enabled = false)"));
}

//	OPACITY (%)
//	---------------------------------------------------
.opacity(@opacity: 100) {
	filter: e(%("alpha(opacity=%d)", @opacity));
	-khtml-opacity: @opacity / 100;
	-moz-opacity: @opacity / 100;
	opacity: @opacity / 100;
}