.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-asphalt);
  border-bottom: 1px solid var(--color-steel);
}

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

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

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

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

.site-header__wordmark {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
}

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

.site-header__toggle:hover {
  border-color: var(--color-amber);
}

.site-header__toggle:focus-visible {
  outline: var(--border-focus);
  outline-offset: 2px;
}

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

.site-header__nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-asphalt);
  border-bottom: 1px solid var(--color-steel);
  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;
  margin: 0;
  padding: var(--space-md) var(--container-padding-mobile);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

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

.site-header__nav-link {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-offwhite);
  text-decoration: none;
  white-space: nowrap;
  border-radius: var(--radius-default);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__nav-link:hover {
  color: var(--color-amber);
  background-color: var(--color-graphite);
}

.site-header__nav-link--cta {
  color: var(--color-amber);
  border: 1px solid var(--color-amber);
  text-align: center;
}

.site-header__nav-link--cta:hover {
  color: var(--color-asphalt);
  background-color: var(--color-amber);
}

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

@media (min-width: 1024px) {
  .site-header__inner {
    gap: var(--space-xs);
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    display: block;
    position: static;
    background: transparent;
    border: none;
    max-height: none;
    overflow: visible;
    z-index: auto;
  }

  .site-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-2xs);
    padding: 0;
  }

  .site-header__nav-link {
    padding: var(--space-xs) 6px;
    font-size: 12px;
  }

  .site-header__nav-link--cta {
    padding: var(--space-xs) 10px;
  }
}

@media (min-width: 1200px) {
  .site-header__inner {
    gap: var(--space-sm);
  }

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

  .site-header__nav-link {
    padding-inline: var(--space-xs);
    font-size: 13px;
  }

  .site-header__nav-link--cta {
    padding-inline: var(--space-sm);
  }
}