.site-header {
  position: relative;
  z-index: 100;
  width: 100%;
  border-bottom: var(--border-subtle);
  background: var(--color-ivory);
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  min-height: 5.25rem;
  gap: var(--space-5);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-burgundy);
  text-decoration: none;
  white-space: nowrap;
}

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

.site-header__logo {
  width: 2.4rem;
  height: 2.4rem;
  flex: 0 0 auto;
  object-fit: contain;
}

.site-header__brand-name {
  overflow: hidden;
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1;
  text-overflow: ellipsis;
}

.site-header__nav {
  justify-self: center;
  min-width: 0;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 1.2vw, 1.25rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.site-header__nav a,
.site-header__nav-contact a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--color-charcoal);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-header__nav-list a::after {
  position: absolute;
  bottom: 0.35rem;
  left: 0;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--color-burgundy);
  content: "";
  transition: transform var(--transition-fast);
}

.site-header__nav-list a {
  position: relative;
}

.site-header__nav a:hover,
.site-header__nav a[aria-current="page"],
.site-header__nav-contact a:hover {
  color: var(--color-burgundy);
}

.site-header__nav-list a:hover::after,
.site-header__nav-list a[aria-current="page"]::after {
  transform: scaleX(1);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-header__contact {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  color: var(--color-charcoal);
  font-size: var(--text-sm);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  padding-inline: var(--space-3);
  border: 1px solid var(--color-burgundy);
  color: var(--color-burgundy);
}

.site-header__contact:hover {
  background: var(--color-burgundy);
  color: var(--color-ivory);
  text-decoration: none;
}

.site-header__toggle,
.site-header__nav-mobile-only {
  display: none;
}

@media (max-width: 73rem) {
  .site-header__inner {
    grid-template-columns: auto 1fr auto;
    min-height: 4.75rem;
    gap: var(--space-3);
  }

  .site-header__logo {
    width: 2.15rem;
    height: 2.15rem;
  }

  .site-header__brand-name {
    font-size: 1.55rem;
  }

  .site-header__nav {
    position: absolute;
    z-index: 110;
    top: calc(100% + 1px);
    right: 0;
    display: grid;
    max-height: min(75vh, 42rem);
    padding: var(--space-5) max(var(--container-padding), 1.25rem);
    overflow-y: auto;
    visibility: hidden;
    border-bottom: var(--border-subtle);
    background: var(--color-ivory);
    box-shadow: var(--shadow-panel);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  }

  .site-header__nav.is-open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-header__nav-list {
    display: grid;
    gap: 0;
    border-top: var(--border-subtle);
  }

  .site-header__nav-list li {
    border-bottom: var(--border-subtle);
  }

  .site-header__nav a,
  .site-header__nav-contact a {
    width: 100%;
    min-height: 3rem;
    font-size: var(--text-sm);
  }

  .site-header__nav-list a::after {
    display: none;
  }

  .site-header__nav-mobile-only {
    display: block;
  }

  .site-header__nav-contact {
    margin-top: var(--space-3);
  }

  .site-header__toggle {
    display: inline-flex;
    width: 2.75rem;
    min-width: 2.75rem;
    min-height: 2.75rem;
    align-items: center;
    justify-content: center;
    padding: 0;
    border: 1px solid var(--color-line);
    background: transparent;
    color: var(--color-burgundy);
  }

  .site-header__toggle:hover {
    border-color: var(--color-burgundy);
    background: var(--color-paper);
    color: var(--color-burgundy-dark);
  }

  .site-header__toggle-lines {
    display: grid;
    width: 1.25rem;
    gap: 0.25rem;
  }

  .site-header__toggle-lines span {
    display: block;
    width: 100%;
    height: 1px;
    transform-origin: center;
    background: currentColor;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-lines span:first-child {
    transform: translateY(0.31rem) 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:last-child {
    transform: translateY(-0.31rem) rotate(-45deg);
  }

  .site-header__actions {
    order: 1;
    gap: 0;
  }

  .site-header__toggle {
    order: 2;
  }

  .site-header__contact {
    display: none;
  }
}

@media (max-width: 40rem) {
  .site-header__inner {
    min-height: 4.5rem;
    gap: var(--space-2);
  }

  .site-header__brand {
    gap: 0.45rem;
  }

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

  .site-header__brand-name {
    font-size: 1.4rem;
  }

  .site-header__nav {
    padding: var(--space-4) var(--container-padding);
  }
}