.site-header {
  position: relative;
  z-index: 800;
  padding-top: var(--space-4);
  background: var(--color-page);
}

.site-header__bar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  width: min(100% - (var(--gutter) * 2), var(--container-wide-max));
  min-height: 5.75rem;
  margin-inline: auto;
  padding: var(--space-3) var(--space-5);
  border: 1px solid var(--color-stone);
  background: var(--color-ivory-white);
  box-shadow: var(--shadow-floating);
  gap: var(--space-4);
}

.site-header__brand {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: var(--space-2);
  color: var(--color-deep-olive);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__mark {
  width: 2.75rem;
  height: 2.75rem;
  flex: 0 0 2.75rem;
  object-fit: contain;
}

.site-header__navigation {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  min-width: 0;
  gap: var(--space-5);
}

.site-header__desktop-group {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: var(--space-3);
}

.site-header__desktop-group--right {
  justify-content: flex-end;
}

.site-header__group-label {
  flex: 0 0 auto;
  color: var(--color-deep-olive);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.site-header__desktop-group ul {
  display: flex;
  align-items: center;
  min-width: 0;
  margin: 0;
  padding: 0;
  gap: var(--space-3);
  list-style: none;
}

.site-header__desktop-group li,
.site-header__desktop-group li + li {
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
}

.site-header__desktop-group a {
  display: block;
  padding-block: 0.35rem;
  border-bottom: 1px solid transparent;
  color: var(--color-deep-olive);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}

.site-header__desktop-group a:hover,
.site-header__desktop-group a[aria-current="page"] {
  border-bottom-color: var(--color-satin-bronze);
}

.site-header__action {
  min-width: 0;
  padding-inline: var(--space-3);
  white-space: nowrap;
}

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

.site-header__info {
  display: flex;
  width: min(100% - (var(--gutter) * 2), var(--container-wide-max));
  margin: var(--space-2) auto 0;
  padding: var(--space-2) 0;
  overflow-x: auto;
  gap: var(--space-3);
  color: var(--color-deep-olive);
  font-size: var(--text-meta);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.4;
  scrollbar-width: none;
  white-space: nowrap;
}

.site-header__info::-webkit-scrollbar {
  display: none;
}

.site-header__info span {
  display: inline-flex;
  align-items: center;
}

.site-header__info span:not(:last-child)::after {
  margin-left: var(--space-3);
  color: var(--color-satin-bronze);
  content: "•";
}

.site-header--scrolled {
  position: sticky;
  top: 0;
  padding-top: 0;
}

.site-header--scrolled .site-header__bar {
  min-height: 4rem;
  border-color: var(--color-satin-bronze);
  border-top: 0;
  background: rgba(247, 244, 236, 0.86);
  backdrop-filter: blur(14px);
}

.site-header--scrolled .site-header__mark {
  width: 2.25rem;
  height: 2.25rem;
  flex-basis: 2.25rem;
}

.site-header--scrolled .site-header__info {
  display: none;
}

@media (max-width: 75rem) {
  .site-header__bar {
    grid-template-columns: auto 1fr auto;
  }

  .site-header__navigation {
    justify-self: end;
    display: block;
  }

  .site-header__desktop-group {
    display: none;
  }

  .site-header__action {
    display: none;
  }

  .site-header__toggle {
    position: relative;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    min-width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    border: 1px solid var(--color-olive-green);
    border-radius: var(--radius-control);
    background: transparent;
    color: var(--color-deep-olive);
    gap: 0.25rem;
  }

  .site-header__toggle:hover {
    background: var(--color-linen);
    color: var(--color-deep-olive);
  }

  .site-header__toggle span {
    position: absolute;
    width: 1.15rem;
    height: 1px;
    background: currentColor;
    transition: transform var(--transition-control), opacity var(--transition-control);
  }

  .site-header__toggle span:nth-child(1) { transform: translateY(-0.35rem); }
  .site-header__toggle span:nth-child(3) { transform: translateY(0.35rem); }

  .site-header--open .site-header__toggle span:nth-child(1) { transform: rotate(45deg); }
  .site-header--open .site-header__toggle span:nth-child(2) { opacity: 0; }
  .site-header--open .site-header__toggle span:nth-child(3) { transform: rotate(-45deg); }

  .site-header__navigation {
    position: fixed;
    z-index: 2;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    visibility: hidden;
    overflow-y: auto;
    padding: 6.5rem var(--gutter) var(--space-6);
    background: var(--color-ivory-white);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-control), visibility var(--transition-control);
  }

  .site-header--open .site-header__navigation {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    width:100%;
  }

  .site-header__mobile-menu {
    display: flex;
    flex-direction: column;
    width: min(100%, 42rem);
    margin-inline: auto;
    gap: var(--space-4);
  }

  .site-header__mobile-intro {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-deep-olive);
    font-family: var(--font-heading);
    font-size: 1.5rem;
  }

  .site-header__mobile-intro img {
    width: 3.5rem;
    height: 3.5rem;
    object-fit: contain;
  }

  .site-header__mobile-section {
    border-top: 1px solid var(--color-satin-bronze);
  }

  .site-header__mobile-section summary {
    display: flex;
    align-items: center;
    min-height: 3.5rem;
    padding-block: var(--space-3);
    color: var(--color-deep-olive);
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: clamp(1.65rem, 6vw, 2.4rem);
    line-height: 1.1;
    list-style: none;
    gap: var(--space-3);
  }

  .site-header__mobile-section summary::-webkit-details-marker {
    display: none;
  }

  .site-header__mobile-section summary::after {
    margin-left: auto;
    color: var(--color-satin-bronze);
    content: "+";
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 400;
  }

  .site-header__mobile-section[open] summary::after {
    content: "−";
  }

  .site-header__mobile-section summary span {
    color: var(--color-satin-bronze);
    font-family: var(--font-body);
    font-size: var(--text-meta);
    font-weight: 700;
    letter-spacing: 0.08em;
  }

  .site-header__mobile-section-content {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(8rem, 0.75fr);
    padding-bottom: var(--space-4);
    gap: var(--space-4);
  }

  .site-header__mobile-section-content ul {
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    gap: var(--space-2);
    list-style: none;
  }

  .site-header__mobile-section-content li,
  .site-header__mobile-section-content li + li {
    margin: 0;
    padding: 0;
  }

  .site-header__mobile-section-content a {
    display: block;
    padding-block: 0.35rem;
    color: var(--color-deep-olive);
    font-size: 0.9375rem;
    text-decoration: none;
  }

  .site-header__mobile-section-content img {
    width: 100%;
    height: 12rem;
    object-fit: cover;
  }

  .site-header__mobile-action {
    align-self: flex-start;
    margin-top: var(--space-2);
  }

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

@media (max-width: 44.9375rem) {
  .site-header {
    padding-top: var(--space-2);
  }

  .site-header__bar {
    min-height: 4rem;
    padding: var(--space-2) var(--space-3);
  }

  .site-header__mark {
    width: 2.25rem;
    height: 2.25rem;
    flex-basis: 2.25rem;
  }

  .site-header__brand-name {
    font-size: 1.0625rem;
  }

  .site-header__info {
    width: 100%;
    padding-inline: var(--gutter);
  }

  .site-header__navigation {
    padding-top: 5.5rem;
  }

  .site-header__mobile-section-content {
    grid-template-columns: 1fr;
  }

  .site-header__mobile-section-content img {
    height: 10rem;
  }
}