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

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

@mixin make-container-widths($widths: $container-widths) {
   @each $breakpoint, $container-width in $widths {
      @media (min-width: map-get($grid-breakpoints, $breakpoint)) {
         width: $container-width;
      }
   }
}

// 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;
}

@mixin make-col-offset($size, $columns: $grid-columns) {
   margin-left: percentage($size / $columns);
}

@mixin make-col-push($size, $columns: $grid-columns) {
   left: if($size > 0, percentage($size / $columns), auto);
}

@mixin make-col-pull($size, $columns: $grid-columns) {
   right: if($size > 0, percentage($size / $columns), auto);
}

@mixin make-col-modifier($type, $size, $columns) {
   // Work around the lack of dynamic mixin @include support (https://github.com/sass/sass/issues/626)
   @if $type == push {
      @include make-col-push($size, $columns);
   } @else if $type == pull {
      @include make-col-pull($size, $columns);
   } @else if $type == offset {
      @include make-col-offset($size, $columns);
   }
}