@function remy($value) {
  @return ($value / 16px) * 1rem;
}
body {
  font: 100% "Open sans", "Trebuchet MS", sans-serif;
}
a {text-decoration: none;}
/**
 * Hidden fallback
 */
[hidden] {
  display: none;
  visibility: hidden;
}
/**
 * Styling navigation
 */

/**
 * Styling top level items
 */
.nav a,
.nav label {
  display: block;
  padding: .85rem;
  color: #fff;
  background-color: #151515;
  box-shadow: inset 0 -1px lighten(#151515, 3%);
  transition: all .25s ease-in;
  &:focus,
  &:hover {
    color: rgba(255,255,255,.5);
    background: darken(#151515, 7%);
  }
}
.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 lighten(#252525, 7%);
  &:focus,
  &:hover {background: darken(#252525, 7%);}
}
/**
 * Styling second level list items
 */
.sub-group-list a,
.sub-group-list label {
  padding-left: 4rem;
  background: #353535;
  box-shadow: inset 0 -1px lighten(#353535, 7%);
  &:focus,
  &:hover {background: darken(#353535, 7%);}
}
/**
 * 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 lighten(#454545, 7%);
  &:focus,
  &:hover {background: darken(#454545, 7%);}
}
/**
 * Hide nested lists
 */
.group-list,
.sub-group-list,
.sub-sub-group-list {
  height: 100%;
  max-height: 0;
  overflow: hidden;
  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;
  transition: transform .65s ease;
}
.nav__list input[type=checkbox]:checked + label > span {transform: rotate(90deg);}
/**
 * Styling footer
 */
footer {
  padding-top: 1rem;
  padding-bottom: 1rem;
  background-color: #050505;
}
.soc-media {
  display: flex;
  justify-content: center;
}
.soc-media li:nth-child(n+2) {margin-left: 1rem;}
.soc-media a {
  font-size: 1.25rem;
  color: rgba(255,255,255,.65);
  transition: color .25s ease-in;
  &:focus,
  &:hover {color: rgba(255,255,255,.2);}
}