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

// Centered container element
.container-fixed(@gutter: @grid-gutter-width) {
  margin-right: auto;
  margin-left: auto;
  padding-left: (@gutter / 2);
  padding-right: (@gutter / 2);

  &:extend(.clearfix all);
}

// Creates a wrapper for a series of columns
.make-row(@gutter: @grid-gutter-width) {
  .margin(left, ceil((@gutter / -2)), floor((@gutter / -2)));

  .margin(right, floor((@gutter / -2)), ceil((@gutter / -2)));

  &:extend(.clearfix all);
}

// Generate the extra small columns
.make-xs-column(@columns; @gutter: @grid-gutter-width) {
  position: relative;
  .float(left);

  width: percentage((@columns / @grid-columns));
  min-height: 1px;
  padding-left: (@gutter / 2);
  padding-right: (@gutter / 2);
}
.make-xs-column-offset(@columns) {
  .margin(left, percentage((@columns / @grid-columns)));
}
.make-xs-column-push(@columns) {
  .left(percentage((@columns / @grid-columns)));
}
.make-xs-column-pull(@columns) {
  .right(percentage((@columns / @grid-columns)));
}

// Generate the small columns
.make-sm-column(@columns; @gutter: @grid-gutter-width) {
  position: relative;
  min-height: 1px;
  padding-left: (@gutter / 2);
  padding-right: (@gutter / 2);

  @media (min-width: @screen-sm-min) {
    .float(left);

    width: percentage((@columns / @grid-columns));
  }
}
.make-sm-column-offset(@columns) {
  @media (min-width: @screen-sm-min) {
    .margin(left, percentage((@columns / @grid-columns)));
  }
}
.make-sm-column-push(@columns) {
  @media (min-width: @screen-sm-min) {
    .left(percentage((@columns / @grid-columns)));
  }
}
.make-sm-column-pull(@columns) {
  @media (min-width: @screen-sm-min) {
    .right(percentage((@columns / @grid-columns)));
  }
}

// Generate the medium columns
.make-md-column(@columns; @gutter: @grid-gutter-width) {
  position: relative;
  min-height: 1px;
  padding-left: (@gutter / 2);
  padding-right: (@gutter / 2);

  @media (min-width: @screen-md-min) {
    .float(left);

    width: percentage((@columns / @grid-columns));
  }
}
.make-md-column-offset(@columns) {
  @media (min-width: @screen-md-min) {
    .margin(left, percentage((@columns / @grid-columns)));
  }
}
.make-md-column-push(@columns) {
  @media (min-width: @screen-md-min) {
    .left(percentage((@columns / @grid-columns)));
  }
}
.make-md-column-pull(@columns) {
  @media (min-width: @screen-md-min) {
    .right(percentage((@columns / @grid-columns)));
  }
}

// Generate the large columns
.make-lg-column(@columns; @gutter: @grid-gutter-width) {
  position: relative;
  min-height: 1px;
  padding-left: (@gutter / 2);
  padding-right: (@gutter / 2);

  @media (min-width: @screen-lg-min) {
    .float(left);

    width: percentage((@columns / @grid-columns));
  }
}
.make-lg-column-offset(@columns) {
  @media (min-width: @screen-lg-min) {
    .margin(left, percentage((@columns / @grid-columns)));
  }
}
.make-lg-column-push(@columns) {
  @media (min-width: @screen-lg-min) {
    .left(percentage((@columns / @grid-columns)));
  }
}
.make-lg-column-pull(@columns) {
  @media (min-width: @screen-lg-min) {
    .right(percentage((@columns / @grid-columns)));
  }
}

// Generate the large columns
.make-xl-column(@columns; @gutter: @grid-gutter-width) {
  position: relative;
  min-height: 1px;
  padding-left: (@gutter / 2);
  padding-right: (@gutter / 2);

  @media (min-width: @screen-xl-min) {
    .float(left);

    width: percentage((@columns / @grid-columns));
  }
}
.make-xl-column-offset(@columns) {
  @media (min-width: @screen-xl-min) {
    .margin(left, percentage((@columns / @grid-columns)));
  }
}
.make-xl-column-push(@columns) {
  @media (min-width: @screen-xl-min) {
    .left(percentage((@columns / @grid-columns)));
  }
}
.make-xl-column-pull(@columns) {
  @media (min-width: @screen-xl-min) {
    .right(percentage((@columns / @grid-columns)));
  }
}