@import url("https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css");

html,body,div,ul,li,label,footer,header,nav{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:'';content:none}table{border-collapse:collapse;border-spacing:0}


a {
  text-decoration: none;
}

/**
 * Hidden fallback
 */
[hidden] {
  display: none;
  visibility: hidden;
}

/**
 * Styling top level items
 */
.nav a,
.nav label {
  display: block;
  padding: .85rem;
  color: #fff;
  background-color: #151515;
  box-shadow: inset 0 -1px #1d1d1d;
  -webkit-transition: all .25s ease-in;
          transition: all .25s 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;
}

/**
 * Styling first level lists items
 */
.group-list a,
.group-list label {
  padding-left: 2rem;
  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;
}


/**
 * Hide nested lists
 */
.group-list,
.sub-group-list,
.sub-sub-group-list {
  height: 100%;
  max-height: 0;
  overflow: hidden;
  -webkit-transition: max-height .5s ease-in-out;
          transition: max-height .5s ease-in-out;
}

.nav__list input[type=checkbox]:checked + label + ul {
  /* reset the height when checkbox is checked */
  max-height: 1000px;
}

/**
 * Rotating chevron icon
 */
label > span {
  float: right;
  -webkit-transition: -webkit-transform .65s ease;
          transition: transform .65s ease;
}

.nav__list input[type=checkbox]:checked + label > span {
  -webkit-transform: rotate(90deg);
      -ms-transform: rotate(90deg);
          transform: rotate(90deg);
}