.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding: 1.25rem max(var(--space), calc((100vw - var(--shell)) / 2));
  background: var(--surface);
  border-block-end: 1px solid var(--line);
}
.brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
}
.site-header nav,
.site-footer nav,
.site-tools {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-header nav a,
.site-footer nav a {
  text-decoration: none;
}
.site-footer {
  border-block-start: 1px solid var(--line);
  border-block-end: 0;
}
.site-menu,
.site-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-menu {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.site-menu details {
  position: relative;
  margin: 0;
}
.site-menu summary {
  padding: 0.5rem;
}
.site-menu ul {
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.site-menu details[open] > ul {
  position: absolute;
  z-index: 20;
  min-width: 12rem;
  max-width: 80vw;
}
.site-menu ul a {
  display: block;
  padding: 0.5rem;
}
.site-nav-toggle {
  display: none;
}
.language-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.login-card {
  max-width: 480px;
  padding: var(--space);
  margin: 5vh auto;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
@media (max-width: 850px) {
  .site-header {
    align-items: start;
  }
  .site-header > nav {
    width: 100%;
  }
  .site-menu {
    align-items: start;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
  }
  .site-menu details[open] > ul {
    position: static;
  }
  .js .site-nav-toggle {
    display: inline-flex;
  }
  .js .site-header > nav:not(.is-open) {
    display: none;
  }
  .site-tools {
    width: 100%;
    justify-content: space-between;
  }
  .login-card {
    margin: 2rem 1rem;
  }
}