/* ==========================================================================
   Header & Brand Elements
   ========================================================================== */

.site-header {
  background: var(--color-primary-dark);
  border-top: .2rem solid var(--color-primary-darker);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.site-header .container {
  order: 1;
  padding-inline: 0;
}

.site-header .brand {
  inset-block-start: .5rem;
  inset-inline-start: 50%;
  position: absolute;
  transform: translateX(-50%);
  z-index: 100;
}

.site-header .brand img {
  block-size: 10rem;
  inline-size: auto;
  max-inline-size: 100%;
  transition: block-size var(--transition-fast);
}

.site-header.is-menu-open .brand img {
  block-size: 4rem;
}

.site-header .brand-tagline {
  background-color: var(--color-primary-darker);
  border-top: 1px solid #507d9a;
  display: grid;
  grid-template-rows: 0fr;
  inline-size: 100%;
  opacity: 0;
  order: 2;
  overflow: hidden;
  transition: grid-template-rows var(--transition-normal), opacity var(--transition-normal), padding var(--transition-normal);
}

.site-header.is-menu-open .brand-tagline {
  grid-template-rows: 1fr;
  opacity: 1;
  padding: .5rem;
}

.site-header .brand-tagline p {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 500;
  overflow: hidden;
  text-align: center;
}



/* ==========================================================================
   Navigation & Toggle
   ========================================================================== */

.site-header .nav-toggle {
  block-size: 5rem;
  display: grid;
  inline-size: 5rem;
  place-items: center;
}

.site-header .nav-toggle svg {
  block-size: 4rem;
  color: var(--color-white);
  grid-area: 1 / 1;
  inline-size: 4rem;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.site-header .nav-toggle[aria-expanded="false"] .icon-menu-open,
.site-header .nav-toggle[aria-expanded="true"] .icon-menu-close {
  opacity: 1;
  transform: rotate(0);
}

.site-header .nav-toggle[aria-expanded="false"] .icon-menu-close {
  opacity: 0;
  transform: rotate(-90deg);
}

.site-header .nav-toggle[aria-expanded="true"] .icon-menu-open {
  opacity: 0;
  transform: rotate(90deg);
}

.site-header .nav {
  display: block;
  inline-size: 100%;
  max-height: 0;
  opacity: 0;
  overflow-x: clip;
  overflow-y: hidden;
  transition:
    max-height var(--transition-normal),
    opacity var(--transition-normal);
}

.site-header .nav-toggle[aria-expanded="true"] ~ .nav {
  max-height: calc(100dvh - 5rem - 3rem);
  opacity: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.site-header .nav .nav-content {
  display: flex;
  flex-direction: column;
}

.site-header .nav .nav-content .menu {
  display: flex;
  flex-direction: column;
  list-style: none;
  padding: 1rem 1rem 0 1rem;
}

.site-header .nav .nav-content .menu > li > a,
.site-header .nav .nav-content .menu > li > button,
.site-header .nav .nav-content .menu .submenu > li > a {
  align-items: center;
  color: var(--color-white);
  display: inline-flex;
  gap: .5rem;
  inline-size: 100%;
  position: relative;
  text-transform: uppercase;
}

.site-header .nav .nav-content .menu > li > a,
.site-header .nav .nav-content .menu > li > button {
  background:
    linear-gradient(#7c9eb3, #7c9eb3) left bottom / 4rem 1px no-repeat,
    linear-gradient(#507d9a, #507d9a) left bottom / 100% 1px no-repeat;
  block-size: 4rem;
  font-size: 1.6rem;
  font-weight: 500;
}

.site-header .nav .nav-content .menu > li > a .youtube-brand {
  display: none;
}

.site-header .nav .nav-content .menu a svg,
.site-header .nav .nav-content .menu button svg {
  block-size: 2rem;
  flex-shrink: 0;
  inline-size: 4rem;
}

.site-header .nav .nav-content .menu .submenu-toggle .icon-chevron {
  block-size: 1.6rem;
  inline-size: 1.6rem;
  margin-inline-start: auto;
  transition: transform var(--transition-normal);
}

.site-header .nav .nav-content .menu .submenu-toggle[aria-expanded="true"] .icon-chevron {
  transform: rotate(180deg);
}

.site-header .nav .nav-content .menu .submenu-wrapper {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-normal);
}

.site-header .nav .nav-content .menu .submenu-toggle[aria-expanded="true"] + .submenu-wrapper {
  grid-template-rows: 1fr;
}

.site-header .nav .nav-content .menu .submenu {
  background: var(--color-primary-darker);
  list-style: none;
  overflow: hidden;
}

.site-header .nav .nav-content .menu .submenu li {
  opacity: 0;
  transform: translateY(-5px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.site-header .nav .nav-content .menu .submenu-toggle[aria-expanded="true"] + .submenu-wrapper .submenu li {
  opacity: 1;
  transform: translateY(0);
}

.site-header .nav .nav-content .menu .submenu > li > a {
  background:
    linear-gradient(#7c9eb3, #7c9eb3) left bottom / 5rem 1px no-repeat,
    linear-gradient(#507d9a, #507d9a) left bottom / 100% 1px no-repeat;
  block-size: 4rem;
  font-size: 1.5rem;
  font-weight: 400;
  padding-inline-start: .7rem;
}

.site-header .nav .nav-content .menu .submenu .flag {
  block-size: auto;
  border-radius: var(--radius-xs);
  flex-shrink: 0;
  inline-size: 3rem;
  margin-inline: .5rem;
  object-fit: contain;
  object-position: center;
}



/* ==========================================================================
   Search
   ========================================================================== */

.site-header .nav .site-search {
  align-items: center;
  display: flex;
  gap: 1rem;
  padding: 2rem 1rem;
  position: relative;
}

.site-header .nav .site-search input {
  background-color: var(--color-white);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-gray-800);
  font-size: 1.4rem;
  padding: .5rem 3rem .5rem .5rem;
  width: 100%;
}

.site-header .nav .site-search button {
  block-size: 3rem;
  display: grid;
  inline-size: 3rem;
  inset-inline-end: 1.5rem;
  place-items: center;
  position: absolute;
}

.site-header .nav .site-search button svg {
  block-size: 2rem;
  color: var(--color-gray-800);
  inline-size: 2rem;
  opacity: .5;
  transition: opacity var(--transition-fast);
}

.site-header .nav .site-search button:hover svg,
.site-header .nav .site-search button:focus-visible svg {
  opacity: 1;
}



/* ==========================================================================
   Social Links
   ========================================================================== */

.site-header .nav .social-links {
  padding: 0 0 1rem 0;
  position: relative;
  text-align: center;
  inline-size: 100%;
}

.site-header .nav .social-links a {
  display: inline-block;
  margin: 0 1rem;
}

.site-header .nav .social-links a img {
  display: block;
  height: 1.6rem;
  width: auto;
}



/* ==========================================================================
   Responsive Desktop
   ========================================================================== */

@media (min-width: 1024px) {

  .site-header {
    background-color: transparent;
    position: relative;
    top: initial;
  }

  .site-header .brand-tagline p {
    box-sizing: border-box;
    margin-inline: auto;
    max-width: 102.4rem;
    padding-left: 16.8rem;
    text-align: left;
    width: 100%;
  }

  .site-header .container {
    background-color: var(--color-white);
    padding-inline: var(--container-padding);
  }
  
  .site-header .brand {
    inset-block-start: -1rem;
    inset-inline-start: 1rem;
    transform: none;
    transition: transform var(--transition-normal);
  }
  
  .site-header .brand:hover,
  .site-header .brand:focus-visible {
    transform: scale(1.1);
  }

  .site-header .brand img {
    block-size: 14rem;
  }

  .site-header .brand-tagline {
    background: var(--color-primary-dark);
    border-top: none;
    grid-template-rows: 1fr;
    opacity: 1;
    order: 0;
    padding: .1rem 0;
  }



  /* ==========================================================================
     Navigation & Toggle
     ========================================================================== */

  .site-header .nav-toggle {
    display: none;
  }

  .site-header .nav {
    max-height: none;
    opacity: 1;
    overflow: visible;
  }

  .site-header .nav .nav-content {
    align-items: center;
    flex-direction: row;
    inline-size: 100%;
  }

  .site-header .nav .nav-content .menu {
    flex: 1;
    flex-direction: row;
    padding: 1rem 1rem 1rem 15rem;
  }

  .site-header .nav .nav-content .menu > li {
    flex: 1 1 auto;
    position: relative;
  }

  .site-header .nav .nav-content .menu > li > a,
  .site-header .nav .nav-content .menu > li > button,
  .site-header .nav .nav-content .menu .submenu > li > a {
    color: var(--color-primary-dark);
    justify-content: center;
    width: 100%;
    transition: color var(--transition-normal);
  }

  .site-header .nav .nav-content .menu > li:hover > button,
  .site-header .nav .nav-content .menu > li > a:hover,
  .site-header .nav .nav-content .menu .submenu > li > a:hover,
  .site-header .nav .nav-content .menu > li:focus-visible > button,
  .site-header .nav .nav-content .menu > li > a:focus-visible,
  .site-header .nav .nav-content .menu .submenu > li > a:focus-visible {
    color: var(--color-primary);
  }

  .site-header .nav .nav-content .menu > li > a,
  .site-header .nav .nav-content .menu > li > button {
    background: none;
    font-size: 1.4rem;
    font-weight: 600;
  }

  .site-header .nav .nav-content .menu > li > a .youtube-text {
    display: none;
  }

  .site-header .nav .nav-content .menu > li > a .youtube-brand {
    display: block;
    transition: transform var(--transition-normal);
  }

  .site-header .nav .nav-content .menu > li > a:hover .youtube-brand,
  .site-header .nav .nav-content .menu > li > a:focus-visible .youtube-brand {
    transform: scale(1.1);
  }

  .site-header .nav .nav-content .menu a svg:first-of-type,
  .site-header .nav .nav-content .menu button svg:first-of-type {
    display: none;
  }

  .site-header .nav .nav-content .menu .submenu-toggle .icon-chevron {
    color: var(--color-primary);
    block-size: 1.3rem;
    inline-size: 1.3rem;
    margin-inline-start: 0;
    transition: color var(--transition-normal), transform var(--transition-normal);
  }

  .site-header .nav .nav-content .menu > li:hover .icon-chevron,
  .site-header .nav .nav-content .menu > li:focus-within .icon-chevron {
    color: var(--color-primary-dark);
    transform: rotate(180deg);
  }

  .site-header .nav .nav-content .menu .submenu-wrapper {
    inset-block-start: 100%;
    inset-inline-start: 50%;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    visibility: hidden;
    transform: translateX(-50%);
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
  }

  .site-header .nav .nav-content .menu > li:hover > .submenu-wrapper,
  .site-header .nav .nav-content .menu > li:focus-within > .submenu-wrapper {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-header .nav .nav-content .menu > li:hover > .submenu-wrapper .submenu li,
  .site-header .nav .nav-content .menu > li:focus-within > .submenu-wrapper .submenu li {
    opacity: 1;
    transform: translateY(0);
  }

  .site-header .nav .nav-content .menu .submenu {
    display: block;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: 0 0 1rem rgba(0,0,0,.25);
    inline-size: max-content;
    min-inline-size: 18rem;
    overflow: hidden;
  }

  .site-header .nav .nav-content .menu .submenu > li:first-child {
    padding-top: 1rem;
  }

  .site-header .nav .nav-content .menu .submenu > li:last-child {
    padding-bottom: 1rem;
  }

  .site-header .nav .nav-content .menu .submenu > li > a {
    background: none;
    block-size: auto;
    font-size: 1.4rem;
    font-weight: 600;
    justify-content: flex-start;
    padding: .5rem 2rem;
    text-transform: none;
  }

  .site-header .nav .nav-content .menu .submenu .flag {
    transition: transform var(--transition-normal);
  }

  .site-header .nav .nav-content .menu .submenu > li > a:hover .flag {
    transform: scale(1.2);
  }



  /* ==========================================================================
     Search
     ========================================================================== */

  .site-header .nav .site-search {
    padding: 1rem 0;
  }

  .site-header .nav .site-search input {
    background-color: var(--color-gray-100);
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    padding: .5rem 2.5rem .5rem .5rem;
  }

  .site-header .nav .site-search button {
    inset-inline-end: 0;
  }



  /* ==========================================================================
     Social Links
     ========================================================================== */

  .site-header .nav .social-links {
    display: none;
  }

}