.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--night-950);
  border-bottom: 2px solid var(--neon-pink);
  box-shadow: 0 0 8px rgba(255, 60, 172, 0.4);
}

.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding-mobile);
  min-height: 64px;
}

.site-header__nav {
  display: flex;
  align-items: center;
}

.site-header__nav--left {
  justify-content: flex-start;
}

.site-header__nav--right {
  justify-content: flex-end;
}

.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__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1;
  color: var(--chrome-light);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header__link:hover {
  color: var(--neon-pink-soft);
}

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

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--chrome-light);
  min-width: 0;
}

.site-header__brand:hover {
  color: var(--neon-pink-soft);
}

.site-header__brand:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

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

.site-header__brand-text {
  font-family: var(--font-heading);
  font-size: var(--text-body-large);
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

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

.site-header__toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--chrome-light);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.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__mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 999;
  background-color: var(--night-950);
  overflow-y: auto;
  padding: var(--space-6) var(--container-padding-mobile);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.site-header__mobile-nav.is-open {
  display: block;
  opacity: 1;
  visibility: visible;
}

.site-header__mobile-nav-inner {
  max-width: var(--container-max);
  margin-inline: auto;
}

.site-header__mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

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

.site-header__mobile-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  color: var(--chrome-light);
  text-decoration: none;
  border: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.site-header__mobile-link:hover {
  color: var(--neon-pink-soft);
  border-color: var(--neon-pink);
  background-color: var(--night-800);
}

.site-header__mobile-link:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

@media (max-width: 1023px) {
  .site-header__inner {
    grid-template-columns: auto 1fr auto;
    gap: var(--space-4);
  }

  .site-header__nav--left,
  .site-header__nav--right {
    display: none;
  }

  .site-header__brand {
    justify-self: center;
  }

  .site-header__toggle {
    display: flex;
    justify-self: end;
  }

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

  .site-header__brand-text {
    font-size: var(--text-body);
  }
}

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

  .site-header__mobile-nav {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header__mobile-nav {
    transition: none;
  }
}