@import 'conditionals';
@import 'css3';
@import 'measurements';
@import 'shims';

$site-width: 960px;

// An extendable selector to wrap your entire site content block
// It limits the sites width to be 960px wide and maintains consistent margins
// on the site of the page and shrinks the margins for mobile.
//
// Usage:
//
// #page-container {
//   @extend %site-width-container;
// }

%site-width-container {
  max-width: $site-width;

  @include ie-lte(8) {
    width: $site-width;
  }

  margin: 0 $gutter-half;

  @include media(tablet) {
    margin: 0 $gutter;
  }

  @include media($min-width: ($site-width + $gutter * 2)) {
    margin: 0 auto;
  }
}

// An extendable selector to outdent to the full page-width
// So that you can create elements that take up the gutters on the side of the
// page and butt up to the edge of the browser on smaller screens (rather than
// leaving a gutter at the edge of the page).
//
// Usage:
//
// .hero-image-container {
//   @extend %outdent-to-full-width;
// }
%outdent-to-full-width {
  margin-left: -$gutter-half;
  margin-right: -$gutter-half;

  @include media(tablet) {
    margin-left: -$gutter;
    margin-right: -$gutter;
  }
}

// An extendable selector to define a row for grid columns to sit in
//
// Usage:
//
// .grid-row {
//   @extend %grid-row;
// }

%grid-row {
  @extend %contain-floats;
  margin: 0 (-$gutter-half);
}

// A mixin for a grid column
// Creates a cross browser grid column with a standardised gutter between the
// columns. Widths should be defined as fractions of the full desktop width
// they want to fill. By default they break to become full width at tablet size
// but that can be configured to be desktop using the `$full-width` argument.
//
// Usage:
//
//   .column-quarter {
//     @include grid-column( 1/4 );
//   }
//   .column-half {
//     @include grid-column( 1/2 );
//   }
//   .column-third {
//     @include grid-column( 1/3 );
//   }
//   .column-two-thirds {
//     @include grid-column( 2/3 );
//   }
//   .column-desktop-third {
//     @include grid-column( 1/3, $full-width: desktop );
//   }

@mixin grid-column($width, $full-width: tablet, $float: left) {

  @include media($full-width) {
    float: $float;
    width: percentage($width);
  }

  @include ie-lte(7) {
    width: (($site-width + $gutter) * $width) - $gutter;
  }

  padding: 0 $gutter-half;
  @include box-sizing(border-box);
}


// OLD deprecated grid mixins
// You should migrate to the mixins above in the future

// Outer block sets a max width
@mixin outer-block {
  @warn "The @mixin outer-block is deprecated and should be updated to use new grid helpers";
  margin: 0 auto;
  width: auto;
  max-width: 960 + $gutter * 2;
  @extend %contain-floats;

  @include ie-lte(8) {
    width: 1020px;
  }
}

// Inner block sets either margin or padding
// to align content with header and footer
@mixin inner-block($margin-or-padding: padding) {
  @warn "The @mixin inner-block is deprecated and should be updated to use new grid helpers";
  #{$margin-or-padding}-left: $gutter-half;
  #{$margin-or-padding}-right: $gutter-half;

  @include media(tablet) {
    #{$margin-or-padding}-left: $gutter;
    #{$margin-or-padding}-right: $gutter;
  }
}