.site-header {
  position: relative;
  z-index: 1000;
  background-color: var(--color-antique-ivory);
  border-bottom: 1px solid var(--color-champagne);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  max-width: var(--container-standard);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  min-height: 72px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  text-decoration: none;
  color: var(--color-dark-mahogany);
  flex-shrink: 0;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.site-header__logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-dark-mahogany);
  white-space: nowrap;
}

.site-header__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
  z-index: 1001;
}

.site-header__toggle-icon {
  position: relative;
  width: 24px;
  height: 2px;
  background-color: var(--color-dark-mahogany);
  transition: background-color var(--transition-fast);
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-dark-mahogany);
  transition: transform var(--transition-medium), top var(--transition-medium);
}

.site-header__toggle-icon::before {
  top: -8px;
}

.site-header__toggle-icon::after {
  top: 8px;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon {
  background-color: transparent;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-header__toggle:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
  box-shadow: var(--focus-glow);
}

.site-header__nav {
  display: none;
}

.site-header__nav.is-open {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-dark-mahogany);
  padding: var(--space-24);
  max-height: calc(100vh - 72px);
  overflow-y: auto;
  z-index: 1000;
  box-shadow: var(--shadow-modal);
}

.site-header__nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

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

.site-header__nav-link {
  display: block;
  padding: var(--space-12) var(--space-16);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--color-antique-ivory);
  text-decoration: none;
  border-radius: var(--radius-small);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  background-color: rgba(107, 168, 160, 0.15);
  color: var(--color-dusty-turquoise);
}

.site-header__nav-link:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
  box-shadow: var(--focus-glow);
}

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

@media (min-width: 1024px) {
  .site-header__inner {
    padding-inline: var(--container-padding-desktop);
  }

  .site-header__toggle {
    display: none;
  }

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

  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-24);
  }

  .site-header__nav-link {
    padding: var(--space-8) 0;
    color: var(--color-dark-mahogany);
    border-bottom: 2px solid transparent;
    border-radius: 0;
    transition: color var(--transition-fast), border-color var(--transition-fast);
  }

  .site-header__nav-link:hover,
  .site-header__nav-link:focus-visible {
    background-color: transparent;
    color: var(--color-dusty-turquoise);
    border-bottom-color: var(--color-dusty-turquoise);
  }

  .site-header__nav-link:focus-visible {
    outline: var(--focus-outline);
    outline-offset: var(--focus-offset);
    box-shadow: var(--focus-glow);
  }
}