/* -------------------------------- 

File#: _1_expandable-side-navigation
Title: Expandable Side Navigation
Descr: A side navigation with expandable sub-lists and popular links
Usage: codyhouse.co/license

-------------------------------- */
/* reset */
*, *::after, *::before {
  box-sizing: border-box;
}

* {
  font: inherit;
  margin: 0;
  padding: 0;
  border: 0;
}

body {
  background-color: hsl(0, 0%, 100%);
  font-family: system-ui, sans-serif;
  color: hsl(230, 7%, 23%);
  font-size: 1rem;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  color: hsl(230, 13%, 9%);
  font-weight: 700;
}

h1 {
  font-size: 2.0736rem;
}

h2 {
  font-size: 1.728rem;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1.2rem;
}

ol, ul, menu {
  list-style: none;
}

button, input, textarea, select {
  background-color: transparent;
  border-radius: 0;
  color: inherit;
  line-height: inherit;
  appearance: none;
}

textarea {
  resize: vertical;
  overflow: auto;
  vertical-align: top;
}



table {
  border-collapse: collapse;
  border-spacing: 0;
}

img, video, svg {
  display: block;
  max-width: 100%;
}

@media (min-width: 64rem) {
  body {
    font-size: 1.25rem;
  }

  h1 {
    font-size: 3.051rem;
  }

    h2 {
    font-size: 2.44rem;
  }

    h3 {
    font-size: 1.75rem;
  }

    h4 {
    font-size: 1.5625rem;
  }
}

/* variables */
:root {
  /* colors */
  --ey9-color-primary-hsl: 250, 84%, 54%;
  --ey9-color-bg-hsl: 0, 0%, 100%;
  --ey9-color-contrast-high-hsl: 230, 7%, 23%;
  --ey9-color-contrast-higher-hsl: 230, 13%, 9%;
  --ey9-color-contrast-lower-hsl: 240, 4%, 85%;
  --ey9-color-contrast-low-hsl: 240, 4%, 65%;

  /* spacing */
  --ey9-space-4xs: 0.125rem;
  --ey9-space-3xs: 0.25rem;
  --ey9-space-2xs: 0.375rem;
  --ey9-space-xs: 0.5rem;
  --ey9-space-md: 1.25rem;

  /* typography */
  --ey9-text-sm: 0.833rem;
  --ey9-text-xs: 0.694rem;
}

@media(min-width: 64rem){
  :root {
    /* spacing */
    --ey9-space-4xs: 0.1875rem;
    --ey9-space-3xs: 0.375rem;
    --ey9-space-2xs: 0.5625rem;
    --ey9-space-xs: 0.75rem;
    --ey9-space-md: 2rem;

    /* typography */
    --ey9-text-sm: 1rem;
    --ey9-text-xs: 0.8rem;
  }
}

/* icons */
.ey9-icon {
  height: var(--ey9-size, 1em);
  width: var(--ey9-size, 1em);
  display: inline-block;
  color: inherit;
  fill: currentColor;
  line-height: 1;
  flex-shrink: 0;
  max-width: initial;
}

/* component */

.exsidenav  {
  padding: var(--sp-m);
}

.exsidenav__pop-nav {
  margin-bottom: var(--ey9-space-md);
}

.exsidenav__pop-link,
.exsidenav__link,
.exsidenav__control {
  display: flex;
  align-items: center;
  width: 100%;
  color: hsl(var(--ey9-color-contrast-high-hsl));
  text-decoration: none;
  line-height: 1;
  padding: var(--ey9-space-2xs);
  cursor: pointer;
  transition: 0.2s;
}
.exsidenav__pop-link:hover,
.exsidenav__link:hover,
.exsidenav__control:hover {
  color: #4279BC;
}

/* popular links */
.exsidenav__pop-link .exsidenav__icon {
  --ey9-size: 16px;
  margin-right: var(--ey9-space-2xs);
  opacity: 0.5;
  transition: opacity 0.2s;
}
.exsidenav__pop-link:hover .exsidenav__icon {
  opacity: 1;
}
.exsidenav__pop-link[aria-current=page] {
  color: #4279BC;
  background-color: #4279bc26;
  border-radius: 0.25em;
}
.exsidenav__pop-link[aria-current=page] .exsidenav__icon {
  opacity: 1;
}

/* main links */
.exsidenav__link {
  position: relative;
}
.exsidenav__list .exsidenav__list .exsidenav__link::before {
  /* left mark */
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  height: 100%;
  width: 1px;
}
.exsidenav__link[aria-current=page] {
  color: #4279BC;
}
.exsidenav__link[aria-current=page]::before {
  background-color: #4279BC;
}

/* list label */
.exsidenav__label-wrapper {
  margin: var(--ey9-space-md) 0 var(--ey9-space-2xs) var(--ey9-space-2xs);
}
.exsidenav__list .exsidenav__list .exsidenav__label-wrapper {
  margin: var(--ey9-space-xs) 0 var(--ey9-space-3xs) var(--ey9-space-2xs);
}

.exsidenav__label {
  color: hsl(var(--ey9-color-contrast-low-hsl));
  font-size: var(--ey9-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* button controlling sub navigations */
.exsidenav__control {
  font-weight: 600;
}
.exsidenav__control .exsidenav__icon {
  --ey9-size: 16px;
  display: block;
  margin-left: auto;
}
.exsidenav__control .icon__group {
  will-change: transform;
  -webkit-transform-origin: 8px 8px;
          transform-origin: 8px 8px;
  transition: -webkit-transform 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
  transition: transform 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
  transition: transform 0.3s cubic-bezier(0.215, 0.61, 0.355, 1), -webkit-transform 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
}
.exsidenav__control .icon__group > * {
  -webkit-transform-origin: 8px 8px;
          transform-origin: 8px 8px;
  stroke-dasharray: 17;
  -webkit-transform: translateY(3px);
          transform: translateY(3px);
  transition: stroke-dashoffset 0.3s, -webkit-transform 0.3s;
  transition: transform 0.3s, stroke-dashoffset 0.3s;
  transition: transform 0.3s, stroke-dashoffset 0.3s, -webkit-transform 0.3s;
  transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
}
.exsidenav__control .icon__group > *:first-child {
  stroke-dashoffset: 10;
}
.exsidenav__control .icon__group > *:last-child {
  stroke-dashoffset: 10;
}
.exsidenav__control[aria-expanded=true] + .exsidenav__list {
  display: block;
  /* show the subnavigation */
}
.exsidenav__control[aria-expanded=true] + .exsidenav__list > * {
  -webkit-animation: exsidenav-entry-animation 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
          animation: exsidenav-entry-animation 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  /* animate list items */
}
.exsidenav__control[aria-expanded=true] .icon__group {
  -webkit-transform: rotate(-90deg);
          transform: rotate(-90deg);
}
.exsidenav__control[aria-expanded=true] .icon__group > *:first-child, .exsidenav__control[aria-expanded=true] .icon__group *:last-child {
  stroke-dashoffset: 0;
  -webkit-transform: translateY(0px);
          transform: translateY(0px);
}

.exsidenav__list .exsidenav__list {
  display: none;
  border-left: 1px solid hsl(var(--ey9-color-contrast-lower-hsl));
  margin: var(--ey9-space-4xs) 0 0 var(--ey9-space-2xs);
}

@-webkit-keyframes exsidenav-entry-animation {
  from {
    opacity: 0;
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
  }
}

@keyframes exsidenav-entry-animation {
  from {
    opacity: 0;
    -webkit-transform: translateY(-10px);
            transform: translateY(-10px);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0px);
            transform: translateY(0px);
  }
}
@media (min-width: 64rem) {
  .exsidenav__pop-link,
.exsidenav__link,
.exsidenav__control {
    font-size: var(--ey9-text-sm);
  }
}