.site-header {
  background-color: var(--color-midnight-navy);
  color: var(--color-pearl-white);
  position: relative;
  z-index: 100;
  width: 100%;
}

.site-header__inner {
  max-width: var(--container-standard);
  margin-inline: auto;
  padding-inline: var(--space-5);
  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-pearl-white);
  flex-shrink: 0;
  min-width: 0;
}

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

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: var(--radius-2);
  transition: background-color var(--transition-fast);
}

.site-header__toggle:hover {
  background-color: rgba(247, 249, 250, 0.12);
}

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

.site-header__toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-pearl-white);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity 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: block;
  flex-shrink: 1;
  min-width: 0;
}

.site-header__list {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}

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

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

.site-header__link {
  display: inline-block;
  padding: var(--space-2) 0;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--color-pearl-white);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.site-header__link:hover {
  color: var(--color-pearl-white);
  border-bottom-color: var(--color-coral-signal);
}

.site-header__link[aria-current="page"] {
  color: var(--color-pearl-white);
  border-bottom-color: var(--color-coral-signal);
}

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

@media (max-width: 767px) {
  .site-header__inner {
    min-height: 56px;
    padding-inline: var(--space-4);
  }

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

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

  .site-header__toggle {
    display: flex;
  }

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-midnight-navy);
    max-height: calc(100vh - 56px);
    overflow-y: auto;
    padding: var(--space-4);
    border-top: 1px solid var(--color-pearl-white-border-dark);
    box-shadow: var(--shadow-floating);
    display: none;
  }

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

  .site-header__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .site-header__link {
    display: block;
    padding: var(--space-3) var(--space-2);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.2;
    border-bottom: none;
    border-radius: var(--radius-2);
  }

  .site-header__link:hover {
    background-color: rgba(247, 249, 250, 0.08);
    border-bottom: none;
  }

  .site-header__link[aria-current="page"] {
    background-color: rgba(226, 109, 90, 0.15);
    border-bottom: none;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .site-header__inner {
    padding-inline: var(--space-5);
  }

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

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

  .site-header__list {
    gap: var(--space-4);
  }

  .site-header__link {
    font-size: 0.8125rem;
    padding: var(--space-2) 0;
  }
}

@media (min-width: 1024px) {
  .site-header__inner {
    padding-inline: var(--space-7);
  }

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

  .site-header__brand-text {
    font-size: 1.25rem;
  }

  .site-header__list {
    gap: var(--space-5);
  }

  .site-header__link {
    font-size: 0.875rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__toggle-line,
  .site-header__link,
  .site-header__toggle {
    transition: none;
  }
}