.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(4, 8, 16, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-text {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
}

.logo-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--accent-cyan); }

.nav-toggle { display: none; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
  }
  .nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-secondary);
    transition: var(--transition);
  }
}