.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: var(--color-bg-translucent);
  border-bottom: 1px solid var(--color-surface-border);
}

.site-header__inner {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: var(--header-height-desktop);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.site-header__nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-lg);
}

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

.site-header__nav-list--left,
.site-header__nav-list--right {
  flex: 1;
}

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

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

.site-header__nav-item {
  flex: 0 0 auto;
}

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0;
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  white-space: nowrap;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.18rem;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-accent-blue), var(--color-primary), var(--color-accent-gold));
  transition: width var(--transition-base);
}

.site-header__nav-link:hover {
  color: var(--color-text);
}

.site-header__nav-link:hover::after,
.site-header__nav-link--active::after {
  width: 100%;
}

.site-header__nav-link--active {
  color: var(--color-text);
}

.site-header__nav-link--cta {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(216, 31, 59, 0.5);
  background: radial-gradient(circle at 0% 0%, var(--color-accent-blue-soft), transparent 60%), radial-gradient(circle at 100% 100%, var(--color-accent-gold-soft), transparent 60%), #ffffff;
  color: var(--color-primary-dark);
  box-shadow: 0 10px 24px rgba(10, 16, 28, 0.08);
}

.site-header__nav-link--cta::after {
  display: none;
}

.site-header__nav-link--cta:hover,
.site-header__nav-link--active-cta {
  border-color: var(--color-primary);
  background: radial-gradient(circle at 0% 0%, rgba(31, 79, 143, 0.18), transparent 60%), radial-gradient(circle at 100% 100%, rgba(243, 181, 59, 0.22), transparent 60%), #ffffff;
  transform: translateY(-1px);
}

.site-header__brand {
  position: relative;
  flex: 0 0 auto;
  text-align: center;
  padding: 0 var(--space-lg);
}

.site-header__logo-mark {
  width: 32px;
  height: 32px;
  margin: 0 auto var(--space-2xs);
  border-radius: 999px;
  background: radial-gradient(circle at 20% 20%, var(--color-accent-gold), transparent 55%), radial-gradient(circle at 80% 80%, var(--color-accent-blue), transparent 55%), radial-gradient(circle at 50% 50%, var(--color-primary), transparent 65%);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.9), 0 12px 30px rgba(10, 16, 28, 0.25);
}

.site-header__brand-name {
  display: block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.site-header__brand-subtitle {
  display: block;
  margin-top: 0.1rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.site-header__toggle {
  position: absolute;
  right: var(--space-md);
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  background: rgba(255, 255, 255, 0.96);
  display: none;
  align-items: center;
  justify-content: center;
}

.site-header__toggle-lines {
  position: relative;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.site-header__toggle-lines::before,
.site-header__toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-base), top var(--transition-base), opacity var(--transition-base);
}

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

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

.site-header--mobile-open .site-header__toggle-lines {
  background: transparent;
}

.site-header--mobile-open .site-header__toggle-lines::before {
  top: 0;
  transform: rotate(45deg);
}

.site-header--mobile-open .site-header__toggle-lines::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-header__nav-mobile {
  position: fixed;
  inset: var(--header-height-mobile) 0 auto 0;
  background: rgba(249, 250, 252, 0.98);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border-subtle);
  box-shadow: 0 18px 40px rgba(10, 16, 28, 0.16);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}

.site-header__nav-mobile-inner {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: var(--space-md);
}

.site-header__nav-mobile-list {
  margin: 0;
  padding: 0;
  list-style: none !important;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  max-height: calc(100vh - var(--header-height-mobile) - 2 * var(--space-md));
  overflow-y: auto;
}

.site-header__nav-mobile-item {
  flex: 0 0 auto;
}

.site-header__nav-mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--color-border-subtle);
}

.site-header__nav-mobile-link--cta {
  border-color: rgba(216, 31, 59, 0.7);
  color: var(--color-primary-dark);
  background: radial-gradient(circle at 0% 0%, var(--color-accent-blue-soft), transparent 55%), radial-gradient(circle at 100% 100%, var(--color-accent-gold-soft), transparent 55%), #ffffff;
}

.site-header__nav-mobile-link:hover {
  border-color: var(--color-border-strong);
}

.site-header--mobile-open .site-header__nav-mobile {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

@media (max-width: 1023.98px) {
  .site-header__inner {
    height: var(--header-height-mobile);
  }
  .site-header__nav-list--left,
  .site-header__nav-list--right {
    display: none;
  }
  .site-header__toggle {
    display: inline-flex;
  }
  .site-header__brand {
    padding: 0;
  }
}

@media (max-width: 767.98px) {
  .site-header__brand-subtitle {
    display: none;
  }
}

@media (min-width: 1024px) {
  .site-header__nav-mobile {
    display: none;
  }
}