.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-charcoal);
  border-bottom: var(--border-iron);
}

.site-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 64px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-ivory);
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
}

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

.site-header__logo {
  display: block;
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  display: block;
  min-width: 0;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.site-header__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-iron);
  border-radius: var(--radius-1);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__toggle:hover {
  border-color: var(--color-gold);
  background-color: var(--color-plum);
}

.site-header__toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-1);
}

.site-header__toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-ivory);
  transition: transform var(--transition-fast), opacity var(--transition-fast), background-color var(--transition-fast);
  transform-origin: center;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(7px) 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(-7px) rotate(-45deg);
}

.site-header__nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-charcoal);
  border-bottom: var(--border-iron);
  box-shadow: var(--shadow-card);
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  z-index: 999;
}

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

.site-header__nav-list {
  list-style: none !important;
  margin: 0 !important;
  padding: var(--space-4) var(--container-pad-mobile) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.site-header__nav-item {
  margin: 0 !important;
  padding: 0 !important;
}

.site-header__nav-link {
  display: block;
  padding: var(--space-2) 0;
  font-family: var(--font-body);
  font-size: var(--text-nav-size);
  font-weight: 600;
  line-height: var(--text-nav-leading);
  letter-spacing: var(--text-nav-tracking);
  text-transform: uppercase;
  color: var(--color-ash);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
  position: relative;
}

.site-header__nav-link:hover {
  color: var(--color-gold);
  background-color: var(--color-plum);
}

.site-header__nav-link:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-1);
}

.site-header__nav-link[aria-current="page"] {
  color: var(--color-gold);
  border-bottom: 2px solid var(--color-gold);
}

@media (max-width: 479px) {
  .site-header__inner {
    min-height: 60px;
    padding-inline: var(--space-4);
    gap: var(--space-3);
  }

  .site-header__brand {
    gap: var(--space-2);
  }

  .site-header__logo {
    width: 36px;
    height: 36px;
  }

  .site-header__brand-text {
    font-size: 1rem;
  }

  .site-header__toggle {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
  }

  .site-header__nav {
    max-height: calc(100dvh - 60px);
  }

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

@media (min-width: 768px) {
  .site-header__inner {
    padding-inline: var(--container-pad-tablet);
    min-height: 72px;
  }

  .site-header__logo {
    width: 44px;
    height: 44px;
  }

  .site-header__nav {
    max-height: calc(100vh - 72px);
  }
}

/* Keep the compact menu until the full desktop navigation has enough room. */
@media (min-width: 1200px) {
  .site-header__inner {
    padding-inline: var(--container-pad-desktop);
    min-height: 80px;
  }

  .site-header__logo {
    width: 48px;
    height: 48px;
  }

  .site-header__brand {
    flex: 0 0 auto;
    overflow: visible;
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: block;
    position: static;
    flex-shrink: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    max-height: none;
    overflow: visible;
  }

  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-5);
    padding: 0;
    margin: 0;
  }

  .site-header__nav-item {
    flex-shrink: 0;
  }

  .site-header__nav-link {
    padding: var(--space-2) 0;
    white-space: nowrap;
  }
}