.rs-site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background:
    linear-gradient(to bottom, rgba(5, 3, 10, 0.96), rgba(5, 3, 10, 0.9));
  border-bottom: 1px solid rgba(185, 196, 213, 0.28);
}

.rs-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  gap: var(--space-8);
}

.rs-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
}

.rs-brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0, rgba(201, 162, 79, 0.45), transparent 55%),
              radial-gradient(circle at 70% 120%, rgba(194, 24, 58, 0.7), transparent 60%),
              linear-gradient(135deg, #1f0b39, #05030a);
  border: 1px solid rgba(185, 196, 213, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--font-size-md);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.rs-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.rs-brand-title {
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.rs-brand-subtitle {
  font-size: var(--font-size-xs);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.rs-primary-nav {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.rs-nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  padding: 0;
  margin: 0;
}

.rs-nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.25rem;
}

.rs-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-primary));
  transition: width var(--transition-normal);
}

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

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

.rs-header-cta-group {
  display: flex;
  align-items: center;
}

.rs-header-cta {
  font-size: var(--font-size-xs);
  padding-inline: 1.5rem;
}

/* Mobile Menu Toggle */
.rs-nav-toggle {
  display: none;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid rgba(185, 196, 213, 0.55);
  background: radial-gradient(circle at 30% 0, rgba(201, 162, 79, 0.24), transparent 60%),
              linear-gradient(145deg, #12091f, #05030a);
  color: inherit;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.rs-nav-toggle-bar {
  position: relative;
  display: block;
  width: 1.2rem;
  height: 2px;
  background-color: var(--gray-100);
  border-radius: 999px;
  transition: transform var(--transition-fast), opacity var(--transition-fast), top var(--transition-fast), bottom var(--transition-fast);
}

.rs-nav-toggle-bar + .rs-nav-toggle-bar {
  margin-top: 0.3rem;
}

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

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

/* Mobile layout */
@media (max-width: 768px) {
  .rs-header-inner {
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
  }

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

  .rs-primary-nav {
    position: fixed;
    inset-inline: 0;
    top: 0;
    padding-top: 4.25rem;
    padding-bottom: var(--space-16);
    background: radial-gradient(circle at top, rgba(124, 43, 255, 0.38), transparent 60%),
                radial-gradient(circle at bottom, rgba(194, 24, 58, 0.4), transparent 65%),
                linear-gradient(180deg, #05030a 10%, #020008 75%);
    border-bottom: 1px solid rgba(185, 196, 213, 0.35);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    flex-direction: column;
    gap: var(--space-10);
  }

  .rs-primary-nav.is-open {
    transform:translateY(60px);
    opacity: 1;
    visibility: visible;
  }

  .rs-nav-list {
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
  }

  .rs-nav-link {
    font-size: var(--font-size-md);
  }

  .rs-header-cta-group {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .rs-brand-subtitle {
    display: none;
  }
}