@import "compass/utilities"
@import "compass/css3"

// Modules
@import "modules/awesome-clearfix"

// Configure Grid Coordinates
$grid-columns: 12 !default
$grid-width: 60px !default
$grid-gutter-width: 20px !default

// Support for deprecated clearfix options
// See modules/awesome-clearfix for details
$support-legacy-grid-clearfix: true !default

=grid-coordinates
  .a-clearfix
    @include a-clearfix
  @if $support-legacy-grid-clearfix
    .grid-clearfix, .grid-pie-clearfix
      @extend .a-clearfix
  .grid-container
    @include grid-container-base
    @extend .a-clearfix
  .nested-grid-container
    @include nested-grid-container-base
    @extend .a-clearfix
  .grid-block
    @include grid-block-base
    @extend .a-clearfix
  .grid-full
    @include grid-base($grid-columns)
    @extend .grid-block

  // Loops
  @for $i from 1 through $grid-columns
    .grid-#{$i}
      @include grid-base($i)
      @extend .grid-block
  @for $i from 1 through $grid-columns - 1
    .grid-prefix-#{$i}
      @include grid-prefix($i)
  @for $i from 1 through $grid-columns - 1
    .grid-suffix-#{$i}
      @include grid-suffix($i)
  @for $i from 1 through $grid-columns - 1
    .grid-push-#{$i}
      @include grid-push($i)
  @for $i from 1 through $grid-columns - 1
    .grid-pull-#{$i}
      @include grid-pull($i)

// Grid Container
=grid-container-base
  margin:
    right: auto
    left: auto
  width: ($grid-columns * $grid-width) + ($grid-columns * $grid-gutter-width)

=grid-container
  @include a-clearfix
  @include grid-container-base

// Nested Container
=nested-grid-container-base
  display: inline-block
  margin:
    left: -($grid-gutter-width / 2)
    right: -($grid-gutter-width / 2)
  width: auto

=nested-grid-container
  @include a-clearfix
  @include nested-grid-container-base

// Grid Block
=grid-block-base
  @include box-sizing(border-box)
  @include float-left
  position: relative
  margin:
    right: ($grid-gutter-width / 2)
    left: ($grid-gutter-width / 2)

=grid-block
  @include grid-block-base
  @include a-clearfix

// Grid
=grid-base($grid-columns)
  @include grid-width($grid-columns)

=grid($grid-columns)
  @include grid-base($grid-columns)
  @include grid-block

=grid-full
  @include grid($grid-columns)

// Grid logic
=grid-width($grid-columns)
  @if $grid-columns == 1
    width: $grid-width
  @else
    width: (($grid-columns * $grid-width) + ($grid-columns * $grid-gutter-width)) - $grid-gutter-width

=grid-prefix($grid-columns)
  margin-left: (($grid-columns * $grid-width) + ($grid-columns * $grid-gutter-width)) + ($grid-gutter-width / 2)

=grid-suffix($grid-columns)
  margin-right: (($grid-columns * $grid-width) + ($grid-columns * $grid-gutter-width)) + ($grid-gutter-width / 2)

=grid-push($grid-columns)
  left: ($grid-columns * $grid-width) + ($grid-columns * $grid-gutter-width)

=grid-pull($grid-columns)
  left: -($grid-columns * $grid-width) + ($grid-columns * $grid-gutter-width)