.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  border-block-end: 1px solid var(--color-border);
  background: rgb(246 241 232 / 96%);
  backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  min-height: 5.25rem;
  align-items: center;
  gap: var(--space-4);
}

.site-header__brand {
  display: inline-flex;
  min-width: 0;
  flex: 0 1 auto;
  align-items: center;
  gap: 0.6875rem;
  color: var(--color-espresso);
  text-decoration: none;
}

.site-header__brand:hover { color: var(--color-espresso); }

.site-header__mark {
  width: 2.625rem;
  height: 2.625rem;
  flex: 0 0 2.625rem;
  object-fit: contain;
}

.site-header__brand-copy {
  display: grid;
  min-width: 0;
  gap: 0.0625rem;
  line-height: 1;
}

.site-header__brand-name {
  overflow: hidden;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-header__brand-descriptor {
  color: var(--color-brass);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: var(--tracking-utility);
  text-transform: uppercase;
}

.site-header__toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  margin-inline-start: auto;
  padding: 0.625rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--color-espresso);
}

.site-header__toggle-line {
  display: block;
  width: 100%;
  height: 1px;
  margin: 0.25rem 0;
  background: currentColor;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header__nav {
  display: flex;
  min-width: 0;
  flex: 1 1 auto;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-4);
}

.site-header__nav-list {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: clamp(0.75rem, 1.5vw, 1.35rem);
  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-list a,
.site-header__contact {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-block-end: 2px solid transparent;
  color: var(--color-espresso);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
}

.site-header__nav-list a:hover,
.site-header__contact:hover,
.site-header__nav-list a[aria-current="page"] {
  border-color: var(--color-brass);
  color: var(--color-brass);
}

.site-header__contact {
  padding-inline: 0.9rem;
  border: 1px solid var(--color-espresso);
  border-radius: var(--radius-control);
  background: var(--color-espresso);
  color: var(--color-warm-ivory);
}

.site-header__contact:hover {
  border-color: #2b1e19;
  background: #2b1e19;
  color: var(--color-warm-ivory);
}

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

@media (max-width: 67.99rem) {
  .site-header__inner { min-height: 4.5rem; }

  .site-header__mark {
    width: 2.125rem;
    height: 2.125rem;
    flex-basis: 2.125rem;
  }

  .site-header__brand-name { font-size: 1.2rem; }
  .site-header__toggle { display: block; }

  .site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) { transform: translateY(0.3125rem) 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(-0.3125rem) rotate(-45deg); }

  .site-header__nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100vh - 4.5rem);
    padding: var(--space-5) var(--gutter) var(--space-6);
    overflow-y: auto;
    border-block-end: 1px solid var(--color-border);
    background: var(--color-warm-ivory);
    box-shadow: var(--shadow-float);
  }

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

  .site-header__nav-list {
    display: grid;
    gap: 0;
    border-block-start: 1px solid var(--color-border);
  }

  .site-header__nav-list a {
    width: 100%;
    min-height: 3.1rem;
    border-block-end: 1px solid var(--color-border);
    font-size: 0.875rem;
  }

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

  .site-header__contact {
    width: 100%;
    justify-content: center;
    margin-block-start: var(--space-5);
  }
}

@media (max-width: 25rem) {
  .site-header__brand-copy { display: none; }
}

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