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

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  min-height: 72px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color-text-on-cream);
}

.site-header__logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-bordeaux);
  line-height: 1.2;
  white-space: nowrap;
}

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

.site-header__toggle:hover {
  background-color: var(--color-cream-dark);
}

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

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

.site-header__toggle-icon::before,
.site-header__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-bordeaux);
  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: flex;
  align-items: center;
  flex-shrink: 1;
  min-width: 0;
}

.site-header__list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-header__item {
  margin: 0;
  padding: 0;
}

.site-header__link {
  display: inline-block;
  padding: var(--space-2) 0;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-text-on-cream);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.site-header__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-bordeaux);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.site-header__link:hover,
.site-header__link:focus-visible {
  color: var(--color-bordeaux);
}

.site-header__link:hover::after,
.site-header__link:focus-visible::after {
  transform: scaleX(1);
}

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

@media (max-width: 1024px) {
  .site-header__inner {
    padding: var(--space-3) var(--space-3);
  }

  .site-header__brand-text {
    font-size: 1.125rem;
  }

  .site-header__list {
    gap: var(--space-3);
  }

  .site-header__link {
    font-size: 0.8125rem;
  }
}

@media (max-width: 768px) {
  .site-header__inner {
    min-height: 64px;
    padding: var(--space-2) var(--space-3);
    gap: var(--space-3);
  }

  .site-header__logo {
    width: 40px;
    height: 40px;
  }

  .site-header__brand-text {
    display: none;
  }

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

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-cream);
    border-bottom: 1px solid var(--color-walnut);
    box-shadow: var(--shadow-raised);
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    display: none;
    padding: var(--space-3);
  }

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

  .site-header__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-header__item {
    border-bottom: 1px solid var(--color-cream-dark);
  }

  .site-header__item:last-child {
    border-bottom: none;
  }

  .site-header__link {
    display: block;
    padding: var(--space-3) var(--space-2);
    font-size: 1rem;
    text-transform: none;
    letter-spacing: 0;
  }

  .site-header__link::after {
    display: none;
  }
}

@media (max-width: 480px) {
  .site-header__inner {
    padding: var(--space-2);
    gap: var(--space-2);
  }

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

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