.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: var(--color-charcoal-950);
  border-bottom: 1px solid var(--color-dark-steel-700);
}

.site-header__bar {
  border-top: 2px solid var(--color-antique-brass);
}

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

.site-header__brand {
  display: inline-flex;
  flex: 0 1 auto;
  align-items: center;
  gap: 0.625rem;
  min-width: 0;
  color: var(--color-warm-ivory);
  line-height: 1;
  text-decoration: none;
}

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

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

.site-header__brand-name {
  color: var(--color-warm-ivory);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 0.9;
  white-space: nowrap;
}

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

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  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 {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  color: var(--color-steel-mist);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.105em;
  line-height: 1;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

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

.site-header__nav-list a[aria-current="page"] {
  box-shadow: inset 0 -2px 0 var(--color-antique-brass);
}

.site-header__cta,
.site-header__mobile-cta {
  flex: 0 0 auto;
  font-size: 0.625rem;
  white-space: nowrap;
}

.site-header__cta {
  margin-left: auto;
}

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

@media (max-width: 74.99rem) {
  .site-header__inner {
    min-height: 4.75rem;
    justify-content: space-between;
  }

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

  .site-header__brand-name {
    font-size: 0.95rem;
  }

  .site-header__cta {
    display: none;
  }

  .site-header__toggle {
    display: inline-flex;
    flex: 0 0 2.875rem;
    align-items: center;
    justify-content: center;
    width: 2.875rem;
    min-height: 2.875rem;
    padding: 0.625rem;
    border: 1px solid var(--color-dark-steel-700);
    background: transparent;
    color: var(--color-warm-ivory);
  }

  .site-header__toggle:hover,
  .site-header__toggle[aria-expanded="true"] {
    border-color: var(--color-antique-brass);
    background: var(--color-poker-green-800);
  }

  .site-header__toggle-line {
    position: absolute;
    width: 1.25rem;
    height: 1px;
    background: currentColor;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  .site-header__toggle-line:nth-child(1) {
    transform: translateY(-0.38rem);
  }

  .site-header__toggle-line:nth-child(3) {
    transform: translateY(0.38rem);
  }

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

  .site-header__nav {
    position: fixed;
    top: 4.875rem;
    right: 0;
    bottom: 0;
    z-index: 999;
    display: flex;
    flex-direction: column;
    width: min(25rem, 100%);
    padding: var(--space-5);
    overflow-y: auto;
    visibility: hidden;
    border-left: 1px solid var(--color-dark-steel-700);
    background: var(--color-charcoal-950);
    opacity: 0;
    pointer-events: none;
    transform: translateX(100%);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  }

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

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-top: 1px solid var(--color-dark-steel-700);
  }

  .site-header__nav-list a {
    justify-content: space-between;
    min-height: 3.25rem;
    padding-inline: var(--space-2);
    border-bottom: 1px solid var(--color-dark-steel-700);
    font-size: var(--text-utility);
  }

  .site-header__nav-list a::after {
    color: var(--color-antique-brass);
    content: "→";
  }

  .site-header__mobile-cta {
    display: inline-flex;
    width: 100%;
    margin-top: var(--space-5);
  }
}

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