$desktop_small: "(max-width: 320px)";
$desktop_320: "(min-width: 320px)";
$desktop_640: "(min-width: 640px)";
$desktop_800: "(min-width: 800px)";
$desktop_1024: "(min-width: 1024px)";
$desktop_big: "(min-width: 1200px)";

$background: #2d2d2d;
$box_background: rgba(0, 0, 0, 0.3);
$text_color: #f0f0f0;
$link_color: #09b7fa;

$content_padding: 186px;

/** MIXINS START **/
@mixin pre_wrap() {
  white-space: pre-wrap; /* CSS 3 */
  white-space: -moz-pre-wrap; /* Mozilla, since 1999 */
  white-space: -pre-wrap; /* Opera 4-6 */
  white-space: -o-pre-wrap; /* Opera 7 */
  word-wrap: break-word; /* Internet Explorer 5.5+ */
}

@mixin clearfix() {
  &:after {
    content: "";
    display: table;
    clear: both;
  }
}

@mixin border_radius($radius: 5px) {
  -webkit-border-radius: $radius;
  -moz-border-radius: $radius;
  -ms-border-radius: $radius;
  border-radius: $radius;
}

@mixin boxed() {
  padding: 5px 10px;
  border: 1px solid darken($link_color, 5);
  background: $box_background;
  text-align: center;
}

@mixin wrapper_width($width: 1200px) {
  width: $width;
}

/** MIXINS END **/

/** MEDIAS START **/
@media #{$desktop_small} {
  $width: 300px;
  $font_size: 14px;
  $content_padding_top: 20px;
  $margin: 0;
  $content_padding: 0;

  p, pre {
    font-size: $font_size;
  }
  .wrapper {
    @include wrapper_width($width);

    .content {
      padding-top: $content_padding_top;
      padding-bottom: $content_padding;

      .center {
        margin: $margin;
      }
    }
  }

  .footer,
  .left-sidebar,
  .right-sidebar,
  .boxes {
    display: none;
  }
}

@media #{$desktop_320} {
  $width: 300px;
  $font_size: 16px;
  $content_padding_top: 20px;
  $center_margin: 0;
  $content_padding: 0;

  p, pre {
    font-size: $font_size;
  }
  .wrapper {
    @include wrapper_width($width);

    .content {
      padding-top: $content_padding_top;
      padding-bottom: $content_padding;

      .center {
        margin: $center_margin;
      }
    }
  }
  .footer,
  .left-sidebar,
  .right-sidebar,
  .boxes {
    display: none;
  }
}

@media #{$desktop_640} {
  $width: 600px;
  $font_size: 18px;
  $content_padding_top: 20px;
  $center_margin: 0 60px;
  $content_padding: 160px;

  p, pre {
    font-size: $font_size;
  }
  .wrapper {
    @include wrapper_width($width);

    .content {
      padding-top: $content_padding_top;
      padding-bottom: $content_padding;

      .center {
        margin: $center_margin;
      }
    }

    .footer {
      width: $width;
    }
    .boxes {
      .box {
        width: 106px;
      }
    }
  }
  .footer,
  .left-sidebar,
  .right-sidebar,
  .boxes {
    display: block;
  }
}

@media #{$desktop_800} {
  $width: 750px;
  $font_size: 20px;
  $content_padding_top: 20px;
  $center_margin: 0 70px;
  $content_padding: 166px;

  p, pre {
    font-size: $font_size;
  }
  .wrapper {
    @include wrapper_width($width);

    .content {
      padding-top: $content_padding_top;
      padding-bottom: $content_padding;

      .center {
        margin: $center_margin;
      }
    }

    .footer {
      width: $width;
    }
    .boxes {
      .box {
        width: 145px;
      }
    }
  }
  .footer,
  .left-sidebar,
  .right-sidebar,
  .boxes {
    display: block;
  }
}

@media #{$desktop_1024} {
  $width: 960px;
  $font_size: 22px;
  $content_padding_top: 20px;
  $center_margin: 0 70px;
  $content_padding: 180px;

  p, pre {
    font-size: $font_size;
  }
  .wrapper {
    @include wrapper_width($width);

    .content {
      padding-top: $content_padding_top;
      padding-bottom: $content_padding;

      .center {
        margin: $center_margin;
      }
    }

    .footer {
      width: $width;
    }
    .boxes {
      .box {
        width: 195px;
      }
    }
  }
  .footer,
  .left-sidebar,
  .right-sidebar,
  .boxes {
    display: block;
  }
}

@media #{$desktop_big} {
  $width: 1100px;
  $font_size: 24px;
  $content_padding_top: 20px;
  $center_margin: 0 75px;

  p, pre {
    font-size: $font_size;
  }
  .wrapper {
    @include wrapper_width($width);

    .content {
      padding-top: $content_padding_top;
      padding-bottom: $content_padding;

      .center {
        margin: $center_margin;
      }
    }

    .footer {
      width: $width;
    }

    .boxes {
      .box {
        width: 232px;
      }
    }
  }
  .footer,
  .left-sidebar,
  .right-sidebar,
  .boxes {
    display: block;
  }
}

/** MEDIAS END **/

body {
  margin: 0;
  padding: 0;
  background: $background;
  color: $text_color;
  position: absolute;
  width: 100%;
  min-height: 100%;
}

.wrapper {
  padding: 0;
  margin: 0 auto;

  .header {
    @include clearfix();
    padding: 0 0 20px;
    .logo {
      @include boxed();
      float: left;
    }
    .right {
      @include boxed();
      @include border_radius(10px);
      float: right;
    }
  }

  .menu, .menu-footer {
    @include boxed();
    ul {
      @include clearfix();
      margin: 0;
      padding: 0;
      li {
        margin: 0;
        padding: 0 10px;
        list-style: none;
        float: left;
        a {
          color: $link_color;
        }
      }
    }
  }

  .boxes {
    @include clearfix();
    margin-right: -10px;
    padding: 20px 0 20px;
    .box {
      @include boxed();
      float: left;
      margin: 0 10px;
    }
  }

  .content {
    .left-sidebar {
      @include boxed();
      float: left;
    }
    .right-sidebar {
      @include boxed();
      float: right;
    }
    .center {
      @include boxed();
      text-align: left;
      pre {
        @include pre_wrap();
      }
    }
    @include clearfix();
  }

  .footer {
    position: absolute;
    bottom: 0;
    padding: 20px 0 20px;
    margin: 0 auto;
    .footer-inner {
      padding: 20px 0 0;
      .left {
        float: left;
        @include boxed();
      }
      .right {
        float: right;
        @include boxed();
      }
      @include clearfix();
    }
  }
}