header {
  width: 100%;
  height: fit-content;
  position: fixed;
  background-color: white;
  z-index: var(--z-index-top);
  border-bottom: 1px solid black;
}

header ul {
  font-family: var(--default-font-header);
  font-size: var(--font-size-medium);
}

.header-list {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--grid-gap);
  list-style: none;
  padding: var(--spacing-vertical) var(--spacing-horizontal);
}

.header-item {
  text-transform: uppercase;
}

.header-item.logo {
  text-align: center;
  font-size: var(--font-size-large);
  line-height: 0.75;
}

.header-item:nth-child(3) {
  text-align: right;
}

.language-code.active {
  color: var(--hna-color-blue);
}

.language-code::after {
  content: "/ ";
  color: black;
}

.language-code:last-of-type::after {
  content: " ";
}

.join-button {
  margin-left: 6px;
  padding: 0 8px;
  background-color: var(--hna-color-blue);
  color: white;
  border-radius: 4px;
  cursor: pointer;
}

.nav-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
  align-items: start;
  padding: var(--spacing-vertical-paragraph) var(--spacing-horizontal);
  line-height: var(--line-height-medium);
}

nav {
  display: none;
  visibility: hidden;
}

nav[open] {
  display: block;
  visibility: visible;
}

.nav-list-item {
  align-items: start;
}

.nav-category {
  text-transform: uppercase;
  line-height: var(--line-height-medium);
}

.nav-list-sub-item {
  line-height: var(--line-height-medium);
}

.nav-list-sub-item a:hover {
  color: var(--hna-color-gray);
}

.menu-button {
  background: none;
  border: none;
  padding: 0;
  font-family: var(--default-font-header);
  font-size: var(--font-size-medium);
  text-transform: uppercase;
  cursor: pointer;
  color: black;
}

form.search {
  width: 100%;
  padding: var(--spacing-vertical-paragraph) var(--spacing-horizontal);
  display: grid;
  grid-template-columns: 1fr auto;
  grid-gap: 6px;
}

form.search input[type="text"] {
  width: 100%;
  padding: 4px 8px 0px 8px;
  border: 1px solid black;
  border-radius: 4px;
}

form.search button {
  border-radius: 6px;
  margin-left: 8px;
  text-transform: uppercase;
  border: 1px solid black;
  background-color: black;
  color: white;
  font-size: var(--font-size-medium);
  cursor: pointer;
}

@media screen and (max-width: 480px) {
  .join-button {
    display: none;
  }

  .nav-list {
    grid-template-columns: 1fr;
  }

  nav[open] {
    height: calc(100dvh - var(--font-size-large) + var(--spacing-vertical));
    overflow: scroll;
  }

  .nav-list-item {
    text-align: center;
  }
}

@media screen and (min-width: 481px) and (max-width: 768px) {
  .join-button {
    display: none;
  }

  nav[open] {
    height: calc(100dvh - var(--font-size-large) + var(--spacing-vertical));
    overflow: scroll;
  }

  .nav-list {
    grid-template-columns: 1fr 1fr;
  }
}