// Grid system
//
// Generate semantic grid columns with these mixins.

// Centered container element
@mixin container-fixed($gutter: $grid-gutter-width){
	margin-right: auto;
	margin-left: auto;
	padding-left:  ($gutter / 2);
	padding-right: ($gutter / 2);
	@include clearfix;
}

// Creates a wrapper for a series of columns
@mixin make-row($gutter: $grid-gutter-width){
	margin-left:  ceil(($gutter / -2));
	margin-right: floor(($gutter / -2));
	@include clearfix;
}

// Generate the extra small columns
@mixin make-xs-column($columns, $gutter: $grid-gutter-width){
	position: relative;
	float: left;
	width: percentage(($columns / $grid-columns));
	min-height: 1px;
	padding-left:  ($gutter / 2);
	padding-right: ($gutter / 2);
}
@mixin make-xs-column-offset($columns){
	margin-left: percentage(($columns / $grid-columns));
}
@mixin make-xs-column-push($columns){
	left: percentage(($columns / $grid-columns));
}
@mixin make-xs-column-pull($columns){
	right: percentage(($columns / $grid-columns));
}

// Generate the small columns
@mixin make-sm-column($columns, $gutter: $grid-gutter-width){
	position: relative;
	min-height: 1px;
	padding-left:  ($gutter / 2);
	padding-right: ($gutter / 2);

	@media (min-width: $screen-sm-min){
		float: left;
		width: percentage(($columns / $grid-columns));
	}
}
@mixin make-sm-column-offset($columns){
	@media (min-width: $screen-sm-min){
		margin-left: percentage(($columns / $grid-columns));
	}
}
@mixin make-sm-column-push($columns){
	@media (min-width: $screen-sm-min){
		left: percentage(($columns / $grid-columns));
	}
}
@mixin make-sm-column-pull($columns){
	@media (min-width: $screen-sm-min){
		right: percentage(($columns / $grid-columns));
	}
}

// Generate the medium columns
@mixin make-md-column($columns, $gutter: $grid-gutter-width){
	position: relative;
	min-height: 1px;
	padding-left:  ($gutter / 2);
	padding-right: ($gutter / 2);

	@media (min-width: $screen-md-min){
		float: left;
		width: percentage(($columns / $grid-columns));
	}
}
@mixin make-md-column-offset($columns){
	@media (min-width: $screen-md-min){
		margin-left: percentage(($columns / $grid-columns));
	}
}
@mixin make-md-column-push($columns){
	@media (min-width: $screen-md-min){
		left: percentage(($columns / $grid-columns));
	}
}
@mixin make-md-column-pull($columns){
	@media (min-width: $screen-md-min){
		right: percentage(($columns / $grid-columns));
	}
}

// Generate the large columns
@mixin make-lg-column($columns, $gutter: $grid-gutter-width){
	position: relative;
	min-height: 1px;
	padding-left:  ($gutter / 2);
	padding-right: ($gutter / 2);

	@media (min-width: $screen-lg-min){
		float: left;
		width: percentage(($columns / $grid-columns));
	}
}
@mixin make-lg-column-offset($columns){
	@media (min-width: $screen-lg-min){
		margin-left: percentage(($columns / $grid-columns));
	}
}
@mixin make-lg-column-push($columns){
	@media (min-width: $screen-lg-min){
		left: percentage(($columns / $grid-columns));
	}
}
@mixin make-lg-column-pull($columns){
	@media (min-width: $screen-lg-min){
		right: percentage(($columns / $grid-columns));
	}
}
