.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(246, 247, 249, 0.96), rgba(232, 237, 242, 0.9));
  border-bottom: 1px solid rgba(220, 227, 232, 0.9);
}

.site-header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.header-brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.header-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.header-logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 0%, var(--color-accent), var(--color-primary));
  color: #ffffff;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.22);
}

.header-logo-text {
  display: flex;
  flex-direction: column;
}

.header-logo-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-heading);
}

.header-logo-subtitle {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.nav-primary-wrapper {
  display: flex;
  align-items: center;
}

.nav-primary {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-link {
  position: relative;
  padding: 0.25rem 0;
  color: var(--gray-700);
  transition: color var(--transition-medium);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  transition: width var(--transition-medium);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-primary);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  width: 100%;
}

.badge-21 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.3rem 0.9rem;
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #ffffff;
  background: radial-gradient(circle at 0% 0%, #ff7a7a, #b3001f);
  box-shadow: 0 14px 36px rgba(179, 0, 31, 0.35);
}


.badge-21 span {
  position: relative;
}

.badge-21-label {
  margin-left: 0.4rem;
  font-weight: 500;
}

.badge-21-fixed {
  top: 0px;
width: 100%;  z-index: var(--z-fixed-badge);
}

.nav-toggle {
  display: none;
  position: relative;
  width: 42px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid rgba(220, 227, 232, 0.9);
  background: rgba(246, 247, 249, 0.9);
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-700);
  transition: transform var(--transition-medium), opacity var(--transition-medium), width var(--transition-medium);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child {
  transform: translateY(3px) rotate(45deg);
  width: 20px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child {
  transform: translateY(-3px) rotate(-45deg);
  width: 20px;
}

@media (max-width: 900px) {
  .site-header-inner {
    height: auto;
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .nav-primary-wrapper {
    position: fixed;
    inset: 96px 0 auto 0;
    background: rgba(246, 247, 249, 0.98);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(220, 227, 232, 0.9);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-medium), opacity var(--transition-medium), visibility var(--transition-medium);
  }

  .nav-primary {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-5) var(--space-5);
    gap: var(--space-3);
  }

  .nav-primary-wrapper.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

 
}

@media (max-width: 600px) {
  .header-logo-subtitle {
    display: none;
  }

  .header-logo-title {
    font-size: 0.98rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-primary-wrapper {
    transition: none;
  }
  .nav-toggle-bar {
    transition: none;
  }
}