$include-html-reveal-classes ?= $include-html-classes;

//
// Reveal Variables
//

// We use these to control the style of the reveal overlay.
$reveal-overlay-bg ?= rgba(#000, .45);
$reveal-overlay-bg-old ?= #000;

// We use these to control the style of the modal itself.
$reveal-modal-bg ?= #fff;
$reveal-position-top ?= 50px;
$reveal-default-width ?= 80%;
$reveal-modal-padding ?= emCalc(20px);
$reveal-box-shadow ?= 0 0 10px rgba(#000,.4);

// We use these to style the reveal close button
$reveal-close-font-size ?= emCalc(22px);
$reveal-close-top ?= emCalc(8px);
$reveal-close-side ?= emCalc(11px);
$reveal-close-color ?= #aaa;
$reveal-close-weight ?= bold;

// We use these to control the modal border
$reveal-border-style ?= solid;
$reveal-border-width ?= 1px;
$reveal-border-color ?= #666;

$reveal-modal-class ?= "reveal-modal";
$close-reveal-modal-class ?= "close-reveal-modal";

//
// Reveal Mixins
//

// We use this to create the reveal background overlay styles
reveal-bg() {
  position: fixed;
  height: 100%;
  width: 100%;
  background: $reveal-overlay-bg-old;
  background: $reveal-overlay-bg;
  z-index: 98;
  display: none;
  top: 0;
  {$default-float}: 0;
}

// We use this mixin to create the structure of a reveal modal
reveal-modal-base($base-style=true, $width=$reveal-default-width) {
  if $base-style {
    visibility: hidden;
    display: none;
    position: absolute;
    {$default-float}: 50%;
    z-index: 99;
    height: auto;
    background-color: #fff;

    // Make sure rows don't have a min-width on them
    .column,
    .columns { min-width: 0; }

    // Get rid of margin from first and last element inside modal
    & > :first-child { margin-top: 0; }
    & > :last-child { margin-bottom: 0; }
  }

  if $width {
    margin-{$default-float}: -($width / 2);
    width: $width;
  }
}

// We use this to style the reveal modal defaults
reveal-modal-style($bg=$reveal-modal-bg, $padding=$reveal-modal-padding, $border=true, $border-style=$reveal-border-style, $border-width=$reveal-border-width, $border-color=$reveal-border-color, $box-shadow=true, $top-offset=$reveal-position-top) {

  if $bg { background: $bg; }
  if $padding { padding: $padding; }

  if $border { border: $border-style $border-width $border-color; }

  // We can choose whether or not to include the default box-shadow.
  if $box-shadow {
    if $experimental {
      -webkit-box-shadow: $reveal-box-shadow;
    }
    box-shadow: $reveal-box-shadow;
  }

  if $top-offset { top: $top-offset; }
}

// We use this to create a close button for the reveal modal
reveal-close($color=$reveal-close-color) {
  font-size: $reveal-close-font-size;
  line-height: 1;
  position: absolute;
  top: $reveal-close-top;
  {$opposite-direction}: $reveal-close-side;
  color: $color;
  font-weight: $reveal-close-weight;
  cursor: $cursor-pointer-value;
}

if $include-html-reveal-classes != false {
  // Reveal Modals
  .reveal-modal-bg {
  	reveal-bg(); 
  }

  .{$reveal-modal-class} {
    reveal-modal-base();
    reveal-modal-style();

    .{$close-reveal-modal-class} {
    	reveal-close(); 
    }
  }

  // Large Screen Styles
  @media $small {

    .{$reveal-modal-class} {
      reveal-modal-style(false, emCalc(30px), false, $box-shadow: false, $top-offset: emCalc(100px));

      &.tiny  {
      	reveal-modal-base(false, 30%); 
      }
      &.small {
      	reveal-modal-base(false, 40%); 
      }
      &.medium  {
      	reveal-modal-base(false, 60%); 
      }
      &.large {
      	reveal-modal-base(false, 70%); 
      }
      &.xlarge {
      	reveal-modal-base(false, 95%); 
      }
    }
  }

  // Reveal Print Styles
  @media print {
    .{$reveal-modal-class} {background: #fff !important;}
  }
}