.site-header {
  position: relative;
  z-index: 100;
  background-color: var(--surface-primary);
  border-bottom: var(--border-default);
}

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

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

.site-header__brand:hover {
  text-decoration: none;
}

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

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-ink-navy);
  white-space: nowrap;
}

.site-header__nav {
  display: flex;
  align-items: center;
  flex: 1 1 auto;
  justify-content: center;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-list li {
  margin: 0;
  padding: 0;
}

.site-header__nav-list li + li {
  margin: 0;
}

.site-header__nav-link {
  display: inline-block;
  padding: var(--space-xs) 0;
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
  font-weight: 600;
  color: var(--color-ink-navy);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  border-bottom: 2px solid transparent;
}

.site-header__nav-link:hover {
  color: var(--color-jade-green);
  text-decoration: none;
}

.site-header__nav-link[aria-current="page"] {
  border-bottom-color: var(--color-jade-green);
  color: var(--color-jade-green);
}

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

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.site-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-overline-size);
  line-height: var(--text-overline-line-height);
  font-weight: var(--text-overline-weight);
  letter-spacing: var(--text-overline-letter-spacing);
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-default);
  min-height: 44px;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.site-header__cta--primary {
  background-color: var(--color-jade-green);
  color: var(--surface-primary);
  border: 1px solid var(--color-jade-green);
}

.site-header__cta--primary:hover {
  background-color: #2E5A4C;
  border-color: #2E5A4C;
  text-decoration: none;
}

.site-header__cta--secondary {
  background-color: transparent;
  color: var(--color-ink-navy);
  border: 1px solid var(--color-ink-navy);
}

.site-header__cta--secondary:hover {
  background-color: var(--surface-alternate);
  text-decoration: none;
}

.site-header__cta:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
}

.site-header__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: transparent;
  border: 1px solid var(--color-ink-navy);
  border-radius: var(--radius-default);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  flex-shrink: 0;
}

.site-header__toggle:hover {
  background-color: var(--surface-alternate);
}

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

.site-header__toggle-icon {
  position: relative;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink-navy);
  transition: background-color var(--transition-fast);
}

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink-navy);
  transition: transform var(--transition-fast), top var(--transition-fast);
}

.site-header__toggle-icon::before {
  top: -6px;
}

.site-header__toggle-icon::after {
  top: 6px;
}

.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);
}

@media (max-width: 1199px) {
  .site-header__inner {
    flex-wrap: wrap;
    padding-block: var(--space-xs);
  }

  .site-header__brand {
    order: 1;
  }

  .site-header__toggle {
    display: inline-flex;
    order: 3;
  }

  .site-header__actions {
    order: 2;
    margin-left: auto;
  }

  .site-header__nav {
    order: 4;
    flex-basis: 100%;
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--surface-primary);
    border-bottom: var(--border-default);
    box-shadow: var(--shadow-card);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 99;
  }

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

  .site-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-sm) 0;
  }

  .site-header__nav-link {
    display: block;
    padding: var(--space-sm) var(--container-padding-mobile);
    border-bottom: none;
    font-size: var(--text-body-size);
    line-height: var(--text-body-line-height);
  }

  .site-header__nav-link:hover {
    background-color: var(--surface-alternate);
  }

  .site-header__nav-link[aria-current="page"] {
    border-left: 4px solid var(--color-jade-green);
    color: var(--color-jade-green);
    background-color: var(--surface-alternate);
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    padding-inline: var(--container-padding-mobile);
  }

  .site-header__logo {
    width: 32px;
    height: 32px;
  }

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

  .site-header__cta {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.6875rem;
    min-height: 40px;
  }

  .site-header__actions {
    gap: var(--space-xs);
  }
}

@media (min-width: 1200px) {
  .site-header__inner {
    padding-inline: var(--container-padding-desktop);
  }

  .site-header__nav-list {
    gap: var(--space-lg);
  }
}