.site-header {
  position: relative;
  z-index: 100;
  border-bottom: var(--border-default);
  background: var(--color-pure-white);
}

.site-header__inner {
  display: grid;
  min-height: 5.25rem;
  grid-template-columns: minmax(0, auto) minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
}

.site-header__brand {
  flex-shrink: 0;
}

.site-header .rt-brand__mark {
  width: 2.625rem;
  height: 2.625rem;
  overflow: hidden;
  padding: 0;
}

.site-header .rt-brand__mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

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

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

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

.site-header__list a {
  display: block;
  white-space: nowrap;
  color: var(--color-espresso-ink);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-decoration: none;
}

.site-header__list a:hover,
.site-header__list a[aria-current="page"] {
  color: var(--color-restrained-burgundy);
  text-decoration: underline;
  text-decoration-color: currentColor;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.35em;
}

.site-header__cta {
  min-height: 2.75rem;
  white-space: nowrap;
}

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

@media (max-width: 1080px) {
  .site-header__inner {
    min-height: 4.75rem;
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .site-header__toggle {
    display: inline-flex;
    position: relative;
    z-index: 2;
    width: 3.25rem;
    min-height: 3rem;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.45rem;
  }

  .nav-toggle__line {
    display: block;
    width: 1.25rem;
    height: 1px;
    background: currentColor;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  .nav-toggle__text {
    font-size: 0.6rem;
    line-height: 1;
  }

  .site-header__toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
    transform: translateY(0.32rem) rotate(45deg);
  }

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

  .site-header__toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
    transform: translateY(-0.32rem) rotate(-45deg);
  }

  .site-header__nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100vh - 7rem);
    overflow-y: auto;
    border-bottom: var(--border-default);
    background: var(--color-pure-white);
    box-shadow: var(--shadow-soft);
  }

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

  .site-header__list {
    display: grid;
    gap: 0;
    padding: var(--space-3) max(1.25rem, calc((100% - var(--container-max)) / 2));
  }

  .site-header__list a {
    padding: 0.9rem 0;
    border-bottom: var(--border-default);
    font-size: var(--text-sm);
  }

  .site-header__mobile-only,
  .site-header__mobile-cta {
    display: block;
  }

  .site-header__mobile-cta {
    width: calc(100% - 2.5rem);
    margin: var(--space-4) auto var(--space-5);
  }

  .site-header__cta {
    display: none;
  }
}

@media (max-width: 599px) {
  .site-header__inner {
    min-height: 4.25rem;
    gap: var(--space-3);
  }

  .site-header .rt-brand__mark {
    width: 2.25rem;
    height: 2.25rem;
  }

  .site-header .rt-brand__name {
    font-size: 1rem;
  }

  .site-header__nav {
    max-height: calc(100vh - 6rem);
  }

  .site-header__list {
    padding-right: var(--space-4);
    padding-left: var(--space-4);
  }
}

ul { list-style: none !important; }
.nav-toggle { flex-direction: column; }