.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  width: 100%;
  border-bottom: 1px solid var(--color-line-steel);
  background: rgba(11, 12, 16, 0.97);
  color: var(--color-white-signal);
}

@supports (backdrop-filter: blur(8px)) {
  .site-header {
    background: rgba(11, 12, 16, 0.9);
    backdrop-filter: blur(8px);
  }
}

.site-header__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  width: min(100% - (var(--gutter) * 2), 116rem);
  min-height: 4.5rem;
  margin-inline: auto;
  gap: var(--space-4);
}

.site-header__brand {
  display: inline-flex;
  grid-column: 2;
  grid-row: 1;
  align-items: center;
  justify-self: center;
  gap: var(--space-3);
  min-width: 0;
  color: var(--color-white-signal);
  text-decoration: none;
}

.site-header__brand:hover {
  color: var(--color-white-signal);
  text-decoration: none;
}

.site-header__logo {
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 2.75rem;
  object-fit: contain;
}

.site-header__brand-name {
  min-width: 0;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 0.95;
}

.site-header__navigation {
  display: contents;
}

.site-header__menu {
  display: flex;
  align-items: center;
  min-width: 0;
  margin: 0;
  padding: 0;
  list-style: none !important;
}

.site-header__menu--left {
  grid-column: 1;
  grid-row: 1;
  justify-content: flex-start;
  gap: clamp(0.5rem, 1.25vw, 1.25rem);
}

.site-header__menu--right {
  grid-column: 3;
  grid-row: 1;
  justify-content: flex-end;
  gap: clamp(0.5rem, 1.25vw, 1.25rem);
}

.site-header__menu li,
.site-header__menu li + li {
  margin: 0;
  padding: 0;
}

.site-header__menu a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  border-bottom: 2px solid transparent;
  color: var(--color-white-signal);
  font-family: var(--font-display);
  font-size: 1rem;
  font-style: italic;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.site-header__menu a:hover,
.site-header__menu a:focus-visible,
.site-header__menu a[aria-current="page"] {
  border-color: var(--color-acid-voltage);
  color: var(--color-acid-voltage);
  transform: translateY(-1px);
}

.site-header__menu a:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
}

.nav-toggle,
.site-header__mobile-menu {
  display: none;
}

@media (max-width: 111.9375rem) {
  .site-header__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 4rem;
  }

  .site-header__brand {
    grid-column: 1;
    justify-self: start;
  }

  .site-header__logo {
    width: 2.25rem;
    height: 2.25rem;
    flex-basis: 2.25rem;
  }

  .site-header__brand-name {
    font-size: 1rem;
  }

  .site-header__navigation {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: block;
    max-height: calc(100vh - 4rem);
    overflow-x: hidden;
    overflow-y: auto;
    border-bottom: 1px solid var(--color-line-steel);
    background: var(--color-steel-panel);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-0.5rem);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .site-header__navigation.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .site-header__menu {
    display: grid;
    gap: 0;
    margin: 0;
    padding: var(--space-3) var(--gutter) var(--space-4);
    list-style: none !important;
  }

  .site-header__menu--left,
  .site-header__menu--right {
    justify-content: stretch;
  }

  .site-header__menu--right {
    padding-top: 0;
  }

  .site-header__menu a {
    justify-content: space-between;
    width: 100%;
    min-height: 2.75rem;
    padding-inline: var(--space-2);
    border-bottom: 1px solid var(--color-line-steel);
    font-size: 1.125rem;
  }

  .site-header__menu--right li:last-child a {
    border-bottom: 0;
  }

  .site-header__menu a::after {
    color: var(--color-acid-voltage);
    content: "\2197";
  }

  .nav-toggle {
    display: inline-flex;
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
    border-color: var(--color-line-steel);
    background: var(--color-steel-panel);
    transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
  }

  .nav-toggle:hover,
  .nav-toggle:focus-visible,
  .nav-toggle[aria-expanded="true"] {
    border-color: var(--color-acid-voltage);
    background: var(--color-acid-voltage);
    color: var(--color-cosmic-black);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(0.3125rem) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-0.3125rem) rotate(-45deg);
  }

  .nav-toggle span {
    transition: opacity var(--transition-fast), transform var(--transition-fast);
  }
}

@media (max-width: 25rem) {
  .site-header__inner {
    gap: var(--space-2);
  }

  .site-header__brand {
    gap: var(--space-2);
  }

  .site-header__brand-name {
    font-size: 0.9375rem;
  }
}