/* Configuration Parameters */
@keyframes fade-opacity-in {
  0% {
    opacity: 0;
  }
  50% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

.nav {
  font: 300% "roboto", "Trebuchet MS", sans-serif;
  background-color: #d3d3d3;
  max-height: 0;
  overflow: hidden;
  margin-top: 113px;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.25);
	position: absolute;
	z-index: 10000;
	top: 0px;
}
.nav ul 
{
  /*list-style-type: none;*/
  padding: 0;
  margin: 0;
}
#hamburger-checkbox {
  display: none;
}
.hamburger-icon {
  position: absolute;
  top: 50px;
  left: 30px;
  display: block;
  cursor: pointer;
  height: 63px;
  width: 75px;
}
.hamburger-icon span {
  display: block;
  top: 24px;
  width: 75px;
  height: 15px;
  background-color: #000;
  position: relative;
  -webkit-transition-duration: 0.2s;
  -moz-transition-duration: 0.2s;
  -ms-transition-duration: 0.2s;
  -o-transition-duration: 0.2s;
  transition-duration: 0.2s;
  -webkit-transition-delay: 0s;
  -moz-transition-delay: 0s;
  -ms-transition-delay: 0s;
  -o-transition-delay: 0s;
  transition-delay: 0s;
}
.hamburger-icon span:after, .hamburger-icon span:before {
  display: block;
  content: '';
  position: absolute;
  width: 75px;
  height: 15px;
  background-color: #000;
  -webkit-transition-duration: 0.2s;
  -moz-transition-duration: 0.2s;
  -ms-transition-duration: 0.2s;
  -o-transition-duration: 0.2s;
  transition-duration: 0.2s;
  -webkit-transition-delay: 0s;
  -moz-transition-delay: 0s;
  -ms-transition-delay: 0s;
  -o-transition-delay: 0s;
  transition-delay: 0s;
}
.hamburger-icon span:before {
  margin-top: -24px;
}
.hamburger-icon span:after {
  margin-top: 24px;
}
#hamburger-checkbox:checked ~ .nav {
  width: 600px;
  max-height: 99999px;
  -webkit-transition: max-height 2s;
}
#hamburger-checkbox:checked ~ .hamburger-icon span {
  background-color: rgba(0, 0, 0, 0);
  -webkit-transition-duration: 0.2s;
  -moz-transition-duration: 0.2s;
  -ms-transition-duration: 0.2s;
  -o-transition-duration: 0.2s;
  transition-duration: 0.2s;
}
#hamburger-checkbox:checked ~ .hamburger-icon span:before, #hamburger-checkbox:checked ~ .hamburger-icon span:after {
  margin-top: 0px;
  -webkit-transition-duration: 0.2s;
  -moz-transition-duration: 0.2s;
  -ms-transition-duration: 0.2s;
  -o-transition-duration: 0.2s;
  transition-duration: 0.2s;
}
#hamburger-checkbox:checked ~ .hamburger-icon span:before {
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  transform: rotate(45deg);
}
#hamburger-checkbox:checked ~ .hamburger-icon span:after {
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -o-transform: rotate(-45deg);
  transform: rotate(-45deg);
}
.nav a, .nav label {
  display: block;
  padding: 2rem;
  color: #fff;
  background-color: #151515;
  box-shadow: inset 0 -1px #1d1d1d;
  -webkit-transition: all 0.2s ease-in;
  transition: all 0.2s ease-in;
}
.nav a:focus, .nav a:hover, .nav label:focus, .nav label:hover {
  color: rgba(255, 255, 255, 0.5);
  background: #030303;
}
.nav label {
  cursor: pointer;
}
.nav li
{
	margin-bottom: 0px;	
}
/**
 * Styling first level lists items
 */
.group-list a, .group-list label {
  padding-left: 4rem;
  background: #252525;
  box-shadow: inset 0 -1px #373737;
}
.group-list a:focus, .group-list a:hover, .group-list label:focus, .group-list label:hover {
  background: #131313;
}
/**
 * Styling second level list items
 */
.sub-group-list a, .sub-group-list label {
  padding-left: 6rem;
  background: #353535;
  box-shadow: inset 0 -1px #474747;
}
.sub-group-list a:focus, .sub-group-list a:hover, .sub-group-list label:focus, .sub-group-list label:hover {
  background: #232323;
}
/**
 * Styling third level list items
 */
.sub-sub-group-list a, .sub-sub-group-list label {
  padding-left: 6rem;
  background: #454545;
  box-shadow: inset 0 -1px #575757;
}
.sub-sub-group-list a:focus, .sub-sub-group-list a:hover, .sub-sub-group-list label:focus, .sub-sub-group-list label:hover {
  background: #333;
}
/**
 * Hide nested lists
 */
.group-list, .sub-group-list, .sub-sub-group-list {
  /*height: 100%;*/
  max-height: 0;
  overflow: hidden;
  -webkit-transition: max-height 0.2s ease-in-out;
}
.nav__list input[type=checkbox]:checked + label + ul {
  /* reset the height when checkbox is checked */
  max-height: 2000px;
}
label > span {
  float: right;
  -webkit-transition: -webkit-transform 0.2s;
  transition: transform 0.2s;
}
.nav__list input[type=checkbox]:checked + label > span {
  -webkit-transform: rotate(90deg);
  -ms-transform: rotate(90deg);
  transform: rotate(90deg);
}

.nav small {
  display: block;
  font-size: 50%;
}