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/**

 * @file

 * Positioning for a responsive layout.

 *

 * Define CSS classes to create a fluid grid layout with optional sidebars

 * depending on whether blocks are placed in the left or right sidebars.

 *

 * This layout uses the Zen Grids plugin for Compass: http://zengrids.com

 */

// We are going to create a fluid grid with 1, 3, or 5 columns and 20px gutters

// between columns (applied as 10px of left/right padding on each column).

$zen-column-count:  1;

$zen-gutter-width:  20px;

// If you need IE6/7 support for box-sizing: border-box (default), see _init.scss

//$zen-box-sizing: content-box;

// You can generate more efficient CSS if you manually apply the

// zen-grid-item-base mixin to all grid items from within a single ruleset.

$zen-auto-include-item-base: false;

// $zen-auto-include-flow-item-base: false;

// Suppress this section of CSS for RTL layouts since it contains no CSS that

// needs RTL-specific overrides.

@if $zen-reverse-all-floats == false {

/**

 * Center the page.

 *

 * For screen sizes larger than 1200px, prevent excessively long lines of text

 * by setting a max-width.

 */

#page,

.region-bottom {

  margin-left: auto;

  margin-right: auto;

  max-width: 1200px;

}

/* Apply the shared properties of grid items in a single, efficient ruleset. */

#header,

#content,

#navigation,

.region-sidebar-first,

.region-sidebar-second,

#footer {

  // See the note about $zen-auto-include-item-base above.

  @include zen-grid-item-base();

}

/* Containers for grid items and flow items. */

#header,

#main,

#footer {

  @include zen-grid-container();

}

/* Navigation bar */

@media all and (min-width: 480px) {

  #main {

    /* Move all the children of #main down to make room. */

    padding-top: $nav-height;

    position: relative;

  }

  #navigation {

    /* Move the navbar up inside #main's padding. */

    position: absolute;

    top: 0;

    height: $nav-height;

    width: $zen-grid-width;

  }

}

} // End of @if $zen-reverse-all-floats == false

/**

 * Use 3 grid columns for smaller screens.

 */

@media all and (min-width: 480px) and (max-width: 959px) {

  $zen-column-count: 3;

  /**

   * The layout when there is only one sidebar, the left one.

   */

  .sidebar-first {

    /* Span 2 columns, starting in 2nd column from left. */

    #content {

      @include zen-grid-item(2, 2);

    }

    /* Span 1 column, starting in 1st column from left. */

    .region-sidebar-first {

      @include zen-grid-item(1, 1);

    }

  }

  /**

   * The layout when there is only one sidebar, the right one.

   */

  .sidebar-second {

    /* Span 2 columns, starting in 1st column from left. */

    #content {

      @include zen-grid-item(2, 1);

    }

    /* Span 1 column, starting in 3rd column from left. */

    .region-sidebar-second {

      @include zen-grid-item(1, 3);

    }

  }

  /**

   * The layout when there are two sidebars.

   */

  .two-sidebars {

    /* Span 2 columns, starting in 2nd column from left. */

    #content {

      @include zen-grid-item(2, 2);

    }

    /* Span 1 column, starting in 1st column from left. */

    .region-sidebar-first {

      @include zen-grid-item(1, 1);

    }

    /* Start a new row and span all 3 columns. */

    .region-sidebar-second {

      @include zen-grid-item(3, 1);

      @include zen-nested-container(); // Since we're making every block in this region be a grid item.

      @include zen-clear();

      /* Apply the shared properties of grid items in a single, efficient ruleset. */

      .block {

        @include zen-grid-item-base();

      }

      /* Span 1 column, starting in the 1st column from left. */

      .block:nth-child(3n+1) {

        @include zen-grid-item(1, 1);

        @include zen-clear();

      }

      /* Span 1 column, starting in the 2nd column from left. */

      .block:nth-child(3n+2) {

        @include zen-grid-item(1, 2);

      }

      /* Span 1 column, starting in the 3rd column from left. */

      .block:nth-child(3n) {

        @include zen-grid-item(1, 3);

      }

    }

  }

}

/**

 * Use 5 grid columns for larger screens.

 */

@media all and (min-width: 960px) {

  $zen-column-count: 5;

  /**

   * The layout when there is only one sidebar, the left one.

   */

  .sidebar-first {

    /* Span 4 columns, starting in 2nd column from left. */

    #content {

      @include zen-grid-item(4, 2);

    }

    /* Span 1 column, starting in 1st column from left. */

    .region-sidebar-first {

      @include zen-grid-item(1, 1);

    }

  }

  /**

   * The layout when there is only one sidebar, the right one.

   */

  .sidebar-second {

    /* Span 4 columns, starting in 1st column from left. */

    #content {

      @include zen-grid-item(4, 1);

    }

    /* Span 1 column, starting in 5th column from left. */

    .region-sidebar-second {

      @include zen-grid-item(1, 5);

    }

  }

  /**

   * The layout when there are two sidebars.

   */

  .two-sidebars {

    /* Span 3 columns, starting in 2nd column from left. */

    #content {

      @include zen-grid-item(3, 2);

    }

    /* Span 1 column, starting in 1st column from left. */

    .region-sidebar-first {

      @include zen-grid-item(1, 1);

    }

    /* Span 1 column, starting in 5th column from left. */

    .region-sidebar-second {

      @include zen-grid-item(1, 5);

    }

  }

}