.navbar {
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
  border-bottom: 2px solid #333;
  z-index: 1000;
}

.nav-btn.active {
  background: var(--bs-primary);
  color: #000;
  border-color: var(--bs-primary);
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.3);
}

.nav-btn.active:hover {
  color: #000;
}