.site-header {
  position: relative;
  z-index: 50;
  background: var(--color-coal-950);
}

.site-header__warning {
  position: relative;
  z-index: 1;
}

.site-header__rail {
  border-bottom: 2px solid var(--color-steel-400);
  background-color: var(--color-coal-950);
  background-image: var(--texture-rust), var(--texture-steel);
  box-shadow: inset 0 -1px 0 var(--color-coal-950);
}

.site-header__inner {
  display: grid;
  grid-template-columns: minmax(13rem, 1fr) auto minmax(13rem, 1fr);
  align-items: center;
  width: min(100% - (var(--container-gutter) * 2), var(--container-max));
  min-height: 5.25rem;
  margin-inline: auto;
  gap: var(--space-4);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  justify-self: start;
  gap: var(--space-3);
  color: var(--text-primary);
  text-decoration: none;
}

.site-header__brand:hover {
  color: var(--color-focus-yellow);
}

.site-header__logo {
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 2.5rem;
  object-fit: contain;
}

.site-header__brand-name {
  min-width: 0;
  color: currentColor;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.075em;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
}

.site-header__navigation {
  grid-column: 1 / -1;
  grid-row: 2;
  min-width: 0;
  border-top: 1px solid var(--color-steel-650);
}

.site-header__nav-list {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: clamp(0.25rem, 1vw, 1rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__nav-list li,
.site-header__nav-list li + li {
  display: flex;
  min-width: 0;
  margin: 0;
  padding: 0;
}

.site-header__nav-list a {
  display: inline-flex;
  min-width: 0;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  border-bottom: 2px solid transparent;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.05;
  padding: 0.5rem 0.25rem;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
}

.site-header__nav-list a:hover,
.site-header__nav-list a[aria-current="page"] {
  border-bottom-color: var(--color-warning-yellow);
  color: var(--color-warning-yellow);
}

.site-header__reserve {
  justify-self: end;
  min-height: 2.75rem;
  font-size: 0.875rem;
  padding: 0.625rem 0.875rem;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
}

.site-header a:focus-visible,
.site-header__toggle:focus-visible {
  box-shadow: var(--focus-ring);
}

@media (max-width: 68.6875rem) {
  .site-header__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    min-height: 4.5rem;
  }

  .site-header__brand {
    justify-self: start;
  }

  .site-header__logo {
    width: 2rem;
    height: 2rem;
    flex-basis: 2rem;
  }

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

  .site-header__reserve {
    display: none;
  }

  .site-header__toggle {
    display: inline-flex;
    min-height: 3rem;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    border-color: var(--color-warning-yellow);
    background: var(--color-warning-yellow);
    box-shadow: var(--shadow-control);
    color: var(--color-coal-950);
    font-size: 0.875rem;
    padding: 0.625rem 0.75rem;
  }

  .site-header__toggle-lines {
    display: grid;
    width: 1rem;
    gap: 3px;
  }

  .site-header__toggle-lines span {
    display: block;
    width: 100%;
    height: 2px;
    background: currentColor;
    transition: transform 160ms ease, opacity 160ms ease;
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
  }

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

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
  }

  .site-header__navigation {
    display: none;
    grid-column: 1 / -1;
    grid-row: 2;
    max-height: calc(100vh - 4.5rem);
    overflow-y: auto;
    border: 2px solid var(--color-steel-400);
    border-top: 0;
    background-color: var(--color-steel-800);
    background-image: var(--texture-rust), var(--texture-steel);
    box-shadow: var(--shadow-hard);
  }

  .site-header__navigation.is-open {
    display: block;
  }

  .site-header__nav-list {
    display: block;
    padding: var(--space-2);
  }

  .site-header__nav-list li,
  .site-header__nav-list li + li {
    display: block;
  }

  .site-header__nav-list a {
    width: 100%;
    min-height: 3rem;
    justify-content: flex-start;
    border: 0;
    border-left: 3px solid transparent;
    padding-inline: var(--space-3);
    text-align: left;
  }

  .site-header__nav-list a:hover,
  .site-header__nav-list a[aria-current="page"] {
    border-bottom-color: transparent;
    border-left-color: var(--color-warning-yellow);
    background: var(--color-coal-900);
  }
}

@media (max-width: 29.9375rem) {
  .site-header__inner {
    gap: var(--space-2);
  }

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

  .site-header__brand-name {
    font-size: 0.875rem;
    letter-spacing: 0.055em;
  }

  .site-header__toggle-text {
    display: none;
  }

  .site-header__toggle {
    width: 3rem;
    padding: 0.625rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-lines span {
    transition: none;
  }
}