.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background:
    radial-gradient(circle at top, rgba(21, 184, 154, 0.22), transparent 60%),
    radial-gradient(circle at bottom, rgba(139, 20, 52, 0.18), transparent 60%),
    rgba(5, 6, 8, 0.94);
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.25rem;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

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

.site-header__logo-mark {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.9rem;
  background:
    radial-gradient(circle at 20% 0, rgba(255, 255, 255, 0.35), transparent 60%),
    conic-gradient(from 210deg, var(--color-primary), var(--color-gold), var(--color-secondary), var(--color-primary));
  box-shadow: var(--shadow-gold-glow);
  position: relative;
}

.site-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 0.16rem;
  border-radius: inherit;
  background: radial-gradient(circle at top, #050608, #050608 55%, transparent 80%);
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-header__logo-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header__logo-tagline {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

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

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.site-header__nav-item--cta .site-header__cta-link {
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(217, 179, 108, 0.65);
  background: radial-gradient(circle at top left, rgba(21, 184, 154, 0.34), transparent 60%),
              rgba(7, 10, 18, 0.96);
  color: var(--color-text);
  font-size: var(--text-xs);
}

.site-header__cta-link:hover {
  background: radial-gradient(circle at top left, rgba(217, 179, 108, 0.4), transparent 60%),
              rgba(10, 12, 22, 0.98);
  border-color: var(--color-gold);
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(7, 10, 18, 0.96);
  color: var(--color-text);
  cursor: pointer;
}

.site-header__toggle-label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.site-header__toggle-icon {
  width: 1.3rem;
  height: 1rem;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.site-header__toggle-icon span {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-gold));
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon span:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-icon span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* Backdrop for mobile nav */
.site-header__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(3px);
  z-index: 35;
}

/* Mobile layout */
@media (max-width: 900px) {
  .site-header__toggle {
    display: inline-flex;
    z-index: 100;
  }
  .site-header__logo{
    z-index: 100;
  }

  .site-header__nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 0;
    transform: translateY(-100%);
    transition: transform var(--transition-base);
    background: radial-gradient(circle at top, rgba(21, 184, 154, 0.24), transparent 60%),
                radial-gradient(circle at bottom, rgba(139, 20, 52, 0.2), transparent 60%),
                #050608;
    padding-top: 4.25rem;
    padding-bottom: var(--space-8);
    z-index: 36;
  }

  .site-header__nav--open {
    transform: translateY(0);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 var(--space-5);
    gap: var(--space-4);
  }

  .site-header__nav-item--cta {
    margin-top: var(--space-4);
  }

  .site-header__nav-item--cta .site-header__cta-link {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 600px) {
  .site-header__logo-tagline {
    display: none;
  }
}

@media (min-width: 901px) {
  .site-header__backdrop {
    display: none !important;
  }
}

/* Focus styles enhancement */
.site-header__toggle:focus-visible,
.site-header a:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}