@charset "UTF-8";
/**
 * Z-INDEX MIXIN
 */

@zIndexOrder: 'background', 'content', 'tooltip', 'foreground', 'nav', 'overlay', 'alert', 'admin', 'dev';

.zIndex(@elementName, @elementOffset) {

  .loop(@elementName, @counter) when (@counter > 0) {
    .loop(@elementName, @counter - 1);
    .pickIndex(@elementName, @counter);
  }

  .loop(@elementName, length(@zIndexOrder));

  .pickIndex(@elementName, @counter) when (extract(@zIndexOrder, @counter) = @elementName) {
    z-index: @counter * 100 + @elementOffset;
  }
}

.zDev {.zIndex('dev',0);}