.site-header {
  position: relative;
  z-index: 100;
  width: 100%;
  border-block-end: var(--border-rule);
  background: rgba(11, 11, 10, 0.96);
}

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

.site-header__brand {
  display: inline-flex;
  grid-column: 2;
  align-items: center;
  justify-self: center;
  gap: 0.625rem;
  max-width: 11.25rem;
  color: var(--color-linen-050);
  text-decoration: none;
}

.site-header__mark {
  width: 2.375rem;
  height: 2.375rem;
  flex: 0 0 2.375rem;
  object-fit: contain;
}

.site-header__brand-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1;
  white-space: nowrap;
}

.site-header__nav--left { grid-column: 1; }
.site-header__nav--right { grid-column: 3; }
.site-header__nav--right .site-header__list { justify-content: flex-end; }

.site-header__list,
.site-header__mobile-list {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 1.65vw, 1.5rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__item,
.site-header__mobile-list li,
.site-header__item + .site-header__item,
.site-header__mobile-list li + li {
  margin: 0;
  padding: 0;
}

.site-header__link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-block-end: 2px solid transparent;
  color: var(--color-linen-100);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color var(--transition-control), color var(--transition-control);
  white-space: nowrap;
}

.site-header__link:hover,
.site-header__link[aria-current="page"] {
  border-color: var(--color-ember-700);
  color: var(--color-linen-050);
}

.site-header__toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  justify-self: end;
  padding: 0;
  border: 1px solid var(--color-rule-dark);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--color-linen-050);
}

.site-header__toggle-line {
  display: block;
  width: 1.125rem;
  height: 1px;
  margin: 0.1875rem auto;
  background: currentColor;
  transition: transform var(--transition-control), opacity var(--transition-control);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) { transform: translateY(0.25rem) 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(-0.25rem) rotate(-45deg); }

.site-header__mobile-nav {
  position: absolute;
  z-index: 101;
  top: 100%;
  right: 0;
  left: 0;
  max-height: calc(100vh - 5rem);
  overflow-y: auto;
  border-block-end: var(--border-rule);
  background: var(--color-charcoal-900);
}

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

.site-header__mobile-inner {
  padding-block: var(--space-6) var(--space-7);
}

.site-header__mobile-label {
  margin: 0 0 var(--space-4);
  color: var(--color-ember-500);
  font-size: var(--text-small);
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.site-header__mobile-list {
  align-items: stretch;
  flex-direction: column;
  gap: 0;
  border-block-start: var(--border-rule);
}

.site-header__mobile-list li { width: 100%; border-block-end: var(--border-rule); }

.site-header__mobile-link {
  display: flex;
  min-height: 3.5rem;
  align-items: center;
  padding-block: var(--space-3);
  color: var(--color-linen-050);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-decoration: none;
  text-transform: uppercase;
}

.site-header__mobile-link:hover,
.site-header__mobile-link[aria-current="page"] { color: var(--color-ember-500); }

body.site-header-menu-open { overflow: hidden; }

@media (max-width: 1040px) {
  .site-header__inner { grid-template-columns: 1fr auto 1fr; min-height: 5rem; }
  .site-header__nav { display: none; }
  .site-header__brand { grid-column: 2; }
  .site-header__toggle { display: block; grid-column: 3; }
}

@media (max-width: 759px) {
  .site-header__inner { min-height: 4.5rem; }
  .site-header__mark { width: 2rem; height: 2rem; flex-basis: 2rem; }
  .site-header__brand-name { font-size: 0.875rem; }
  .site-header__brand { gap: 0.5rem; }
  .site-header__mobile-nav { max-height: calc(100vh - 4.5rem); }
}

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