.site-header {
  position: relative;
  z-index: 900;
  min-height: 5.25rem;
  border-bottom: 1px solid var(--color-border-subtle);
  background: color-mix(in srgb, var(--surface-deep) 94%, transparent);
}

.site-header__inner {
  display: grid;
  min-height: 5.25rem;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-4);
}

.site-header__nav {
  min-width: 0;
}

.site-header__nav--right {
  justify-self: end;
}

.site-header__links,
.site-header__mobile-links {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.8vw, 1.5rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__links li,
.site-header__mobile-links li,
.site-header__links li + li,
.site-header__mobile-links li + li {
  margin: 0;
  padding: 0;
}

.site-header__links a,
.site-header__mobile-links a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-ivory-50);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__links a::after,
.site-header__mobile-links a::after {
  width: 100%;
  height: 1px;
  margin-top: 0.3rem;
  background: var(--color-relic-gold-500);
  content: "";
  opacity: 0;
  transform: scaleX(0.45);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.site-header__links a,
.site-header__mobile-links a {
  flex-direction: column;
  justify-content: center;
}

.site-header__links a:hover::after,
.site-header__links a:focus-visible::after,
.site-header__mobile-links a:hover::after,
.site-header__mobile-links a:focus-visible::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  min-height: 4.5rem;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  color: var(--color-ivory-50);
  text-decoration: none;
}

.site-header__logo {
  width: 3.25rem;
  height: 3.25rem;
  flex: 0 0 3.25rem;
  object-fit: contain;
}

.site-header__brand-text {
  color: var(--color-ivory-50);
  font-family: var(--font-heading);
  font-size: clamp(1.125rem, 1.7vw, 1.25rem);
  font-weight: 600;
  letter-spacing: 0.055em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
}

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

@media (max-width: 899px) {
  .site-header {
    min-height: 4.25rem;
  }

  .site-header__inner {
    min-height: 4.25rem;
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .site-header__nav {
    display: none;
  }

  .site-header__brand {
    justify-self: start;
    min-height: 4.25rem;
  }

  .site-header__logo {
    width: 2.625rem;
    height: 2.625rem;
    flex-basis: 2.625rem;
  }

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

  .site-header__toggle {
    display: inline-flex;
    width: 2.75rem;
    height: 2.75rem;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.3rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: transparent;
  }

  .site-header__toggle-line {
    display: block;
    width: 1.2rem;
    height: 1px;
    background: var(--color-ivory-50);
    transform-origin: center;
    transition: transform var(--transition-fast), opacity var(--transition-fast), background-color var(--transition-fast);
  }

  .site-header__toggle[aria-expanded="true"] {
    border-color: var(--color-ember-300);
    background: color-mix(in srgb, var(--color-ember-600) 20%, transparent);
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
    transform: translateY(0.4rem) rotate(45deg);
  }

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

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
    transform: translateY(-0.4rem) rotate(-45deg);
  }

  .site-header__mobile-nav {
    display: block;
    position: absolute;
    z-index: 910;
    top: 100%;
    right: max(1.25rem, calc((100vw - var(--container-max)) / 2));
    width: min(20rem, calc(100vw - 2.5rem));
    max-height: calc(100vh - 4.25rem);
    overflow-y: auto;
    border: 1px solid var(--color-border);
    border-top: 0;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    background: var(--surface-deep);
    box-shadow: var(--shadow-drawer);
  }

  .site-header__mobile-nav[hidden] {
    display: none !important;
  }

  .site-header__mobile-inner {
    padding: var(--space-4);
  }

  .site-header__mobile-links {
    align-items: stretch;
    flex-direction: column;
    gap: 0;
  }

  .site-header__mobile-links a {
    width: 100%;
    min-height: 3rem;
    align-items: flex-start;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border-subtle);
    font-size: 0.75rem;
    white-space: normal;
  }

  .site-header__mobile-links li:last-child a {
    border-bottom: 0;
  }
}

@media (max-width: 420px) {
  .site-header__brand-text {
    font-size: 0.875rem;
    letter-spacing: 0.035em;
  }
}

@media (hover: hover) and (pointer: fine) {
  .site-header__toggle:hover {
    border-color: var(--color-firelight-300);
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-line,
  .site-header__links a::after,
  .site-header__mobile-links a::after {
    transition: none;
  }
}