.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  backdrop-filter: blur(20px);
  background: linear-gradient(to bottom, rgba(5, 6, 8, 0.96), rgba(5, 6, 8, 0.88), transparent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.header-shell {
  padding-block: 0;
  min-width: 0;
  max-width: 100%;
}
.header-inner {
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-width: 0;
  max-width: 100%;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text);
  min-width: 0;
  flex: 1 1 auto;
}
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(224, 177, 90, 0.8);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  background: radial-gradient(circle at 0 0, rgba(224, 177, 90, 0.35), transparent 60%);
  box-shadow: 0 0 0 1px rgba(5, 6, 8, 0.9), 0 10px 24px rgba(0, 0, 0, 0.7);
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.brand-title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  letter-spacing: var(--tracking-tight);
}
.brand-subtitle {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
}
.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-shrink: 0;
}
.nav-desktop {
  display: none;
}
.nav-toggle {
  position: relative;
  width: 40px;
  height: 32px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background-color: rgba(7, 9, 15, 0.96);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
}
.nav-toggle-bar {
  width: 16px;
  height: 1.5px;
  border-radius: 999px;
  background-color: var(--color-text-soft);
  transition: transform var(--transition-med), opacity var(--transition-med), background-color var(--transition-med);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:first-child {
  transform: translateY(2px) rotate(42deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:last-child {
  transform: translateY(-2px) rotate(-42deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar {
  background-color: var(--color-accent);
}
.nav-mobile {
  position: fixed;
  inset-inline: 0;
  top: var(--nav-height);
  z-index: var(--z-overlay);
  background: radial-gradient(circle at 0 0, rgba(224, 177, 90, 0.12), transparent 60%), rgba(5, 6, 8, 0.98);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-med), transform var(--transition-med), visibility var(--transition-med);
}
.nav-mobile[hidden] {
  display: none;
}
.nav-mobile-inner {
  padding-inline: var(--space-lg);
  padding-block: var(--space-md) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.nav-link-mobile {
  font-size: var(--text-sm);
}
.nav-mobile-cta {
  margin-top: var(--space-md);
}
.nav-mobile.is-open {
  display: block;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}
@media (max-width: 479px) {
  .brand-subtitle {
    display: none;
  }
}

@media (max-width: 767px) {
  .header-shell {
    padding-inline: var(--space-lg);
  }
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
  .nav-toggle {
    display: none;
  }
  .nav-mobile {
    display: none;
  }
}