Modal tela cheia

codigo completo

//html
<!--Start of Modal -->
<div class="modaal">
    <input id="modaal__trigger" type="checkbox" />
    <label class="{{className}}" for="modaal__trigger">{{buttonText}}</label>
    <div class="modaal__overlay" role="dialog" aria-labelledby="modaal__title" aria-describedby="modaal_desc">
        <div class="modaal__wrap">
            <label for="modaal__trigger">&#10006;</label>
            <ng-transclude></ng-transclude>
        </div>
    </div>
</div>
<!--End of Modal -->

//js
(function() {
  'use strict';

  angular
    .module('quiddApp')
    .directive('modal', modal);

    /** @ngInject */
    function modal($rootScope){

        var directive = {
            restrict: 'AE',
            templateUrl: 'app/components/modal/modal.html',
            scope: {
                buttonText: '@',
                className: '@'
            },
            link: modalLink,
            transclude: true
        };

        return directive;

        function modalLink($scope, $element, $attrs){

        }

    }

})();

//scss
@import url(http://fonts.googleapis.com/css?family=Lato:300,400,900);
@import url(http://fonts.googleapis.com/css?family=Audiowide);

$lato: 'Lato', sans-serif;

//color
$yellow: #FFD300;
$white: #f2f1f1;
$black: #000000;
$black-light: #5E5E5E;

//font weights:
$thin: 300;
$normal: 400;
$bold: 900;

/*====================================
  Our Modal Window styles
=====================================*/
.modaal__overlay {
  background: #FFF;
  bottom: 0;
  left: 0;
  position: fixed;
  right: 0;
  text-shadow: none;
  top: 0;
  z-index: 800;
}
.modaal__wrap {
  padding: 0em 0;
  position: relative;
  margin: 0 auto;
  max-width: 900px;
  width: 90%;
}
@media (min-width: 50em) {
  .modaal__wrap {
    padding: 0em;
  }
}
@media (min-height: 37.5em) {
  .modaal__wrap {
    left: 50%;
    position: absolute;
    top: 70%;
    transform: translate(-50%, -80%);
  }
}
.modaal__wrap > label {
  background: #FFD300;
  border-radius: 50%;
  color: #000000;
  cursor: pointer;
  display: inline-block;
  height: 1.5em;
  line-height: 1.5;
  position: absolute;
  right: -5em;
  top: -3em;
  width: 1.5em;
  text-align: center;
}

.modaal input:focus ~ label {
  transform: scale(0.97);
}
input#modaal__trigger{
  position: absolute;
  top: -1000px;
}
.modaal__overlay {
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.75s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  z-index: -100;
}
input:checked ~ .modaal__overlay {
  opacity: 1;
  transform: scale(1);
  z-index: 9999999;
}


//example usando
<modal button-text="Create New" class-name="btn btn-success">
    <div ng-controller="MainController as vm" ng-include="'app/main/main.html'"></div>
</modal>