* {
  box-sizing: border-box;
}

.sidenav {
  position: relative;
  overflow: hidden;
}

.sidenav li,
.sidenav ul {
  display: block;
  width: 100%;
  padding: 0;
  margin: 0;
}

.sidenav a {
  text-decoration: none;
}

.sidenav a,
.sidenav span {
  display: block;
  padding: 6px 0;
  cursor: pointer;
}

.sidenav_slide .sidenav__articles-list,
.sidenav_slide .sidenav__categories-list,
.sidenav_slide .sidenav__sections-list {
  position: absolute;
  top: 0;
  width: 100%;
  transition-timing-function: ease-out;
}

.sidenav_slide > .sidenav__categories-list {
  left: 0;
}

.sidenav_slide > .sidenav__categories-list .sidenav__articles-list,
.sidenav_slide > .sidenav__categories-list .sidenav__sections-list {
  left: 100%;
  visibility: hidden;
}

.sidenav_slide > .sidenav__categories-list .sidenav__articles-list.is-active,
.sidenav_slide > .sidenav__categories-list .sidenav__sections-list.is-active {
  visibility: visible;
}

.sidenav_slide > .sidenav__sections-list {
  left: 0;
}

.sidenav_slide > .sidenav__sections-list .sidenav__articles-list {
  left: 100%;
  visibility: hidden;
}

.sidenav_slide > .sidenav__sections-list .sidenav__articles-list.is-active {
  visibility: visible;
}

.sidenav_slide > .sidenav__articles-list {
  left: 0;
}

.sidenav_slide.sidenav_categories-is-active .sidenav__articles-list,
.sidenav_slide.sidenav_categories-is-active .sidenav__categories-list,
.sidenav_slide.sidenav_categories-is-active .sidenav__sections-list {
  -webkit-transform: translateX(0);
  transform: translateX(0);
}

.sidenav_slide.sidenav_sections-is-active .sidenav__categories-list {
  -webkit-transform: translateX(-100%);
  transform: translateX(-100%);
}

.sidenav_slide.sidenav_sections-is-active .sidenav__articles-list,
.sidenav_slide.sidenav_sections-is-active .sidenav__sections-list {
  -webkit-transform: translateX(0);
  transform: translateX(0);
}

.sidenav_slide.sidenav_articles-is-active .sidenav__categories-list,
.sidenav_slide.sidenav_articles-is-active .sidenav__sections-list {
  -webkit-transform: translateX(-100%);
  transform: translateX(-100%);
}

.sidenav_slide.sidenav_articles-is-active .sidenav__articles-list {
  -webkit-transform: translateX(0);
  transform: translateX(0);
}

.sidenav_slide .sidenav__back {
  font-weight: 700;
}

.sidenav_slide.sidenav_init
  .sidenav__category.is-active
  > .sidenav__sections-list,
.sidenav_slide.sidenav_init
  .sidenav__section.is-active
  > .sidenav__articles-list {
  visibility: visible;
}

.sidenav_accordion > .sidenav__categories-list .sidenav__articles-list,
.sidenav_accordion > .sidenav__categories-list .sidenav__sections-list,
.sidenav_accordion > .sidenav__sections-list .sidenav__articles-list {
  display: none;
  padding-left: 16px;
}

.sidenav_accordion .sidenav__category.is-active > .sidenav__sections-list {
  display: block;
}

.sidenav_accordion
  .sidenav__category.is-active
  > span.sidenav__category-name:after {
  -webkit-transform: translateY(-50%) rotate(90deg);
  transform: translateY(-50%) rotate(90deg);
}

.sidenav_accordion .sidenav__section.is-active > .sidenav__articles-list {
  display: block;
}

.sidenav_accordion
  .sidenav__section.is-active
  > span.sidenav__section-name:after {
  -webkit-transform: translateY(-50%) rotate(90deg);
  transform: translateY(-50%) rotate(90deg);
}

.sidenav__article.is-active > a,
.sidenav__article.is-active > span,
.sidenav__category.is-active > a,
.sidenav__category.is-active > span,
.sidenav__section.is-active > a,
.sidenav__section.is-active > span {
  font-weight: 700;
}

span.sidenav__category-name,
span.sidenav__section-name {
  position: relative;
  display: block;
  padding-right: 20px;
}

span.sidenav__category-name::after,
span.sidenav__section-name::after {
  position: absolute;
  top: 50%;
  right: 5px;
  display: inline-block;
  font-family: "Font Awesome 5 Free";
  font-style: normal;
  font-weight: 900;
  font-variant: normal;
  line-height: 1;
  content: "\f105";
  transition: all 0.3s;
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  text-rendering: auto;
}

.sidenav__back span {
  position: relative;
  display: block;
  padding-left: 20px;
}

.sidenav__back span::before {
  position: absolute;
  top: 50%;
  left: 0;
  display: inline-block;
  font-family: "Font Awesome 5 Free";
  font-size: 0.75em;
  font-style: normal;
  font-weight: 900;
  font-variant: normal;
  line-height: 1;
  content: "\f060";
  -webkit-transform: translateY(-50%);
  transform: translateY(-50%);
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  text-rendering: auto;
}