/* Modern Navbar */
.navbar-modern {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  box-shadow: var(--box-shadow);
  padding: 0.9rem 0;
  transition: var(--transition);
  z-index: 1030;
  
}

/* Brand */
.navbar-brand {
  font-weight: 800;
  font-size: 1.7rem;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--light) !important;
  text-shadow: 0 2px 8px rgba(255, 255, 255, 0.15);
}

.navbar-brand i {
  font-size: 2rem;
  color: var(--success);
  filter: drop-shadow(0 0 6px rgba(76, 201, 240, 0.6));
  animation: pulseGlow 2.5s infinite ease-in-out;
}

/* Navbar Links */
.nav-link {
  font-weight: 500;
  color: var(--light) !important;
  padding: 0.5rem 1rem !important;
  border-radius: var(--border-radius);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link i {
  font-size: 1.1rem;
  color: var(--light);
  opacity: 0.9;
}

.nav-link:hover,
.nav-link.active {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-1px);
  color: #fff !important;
}

/* Navbar Toggler */
.navbar-toggler {
  border: none;
  padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* Glow animation for BioTrack icon */
@keyframes pulseGlow {
  0%, 100% {
    filter: drop-shadow(0 0 4px rgba(76, 201, 240, 0.4));
  }
  50% {
    filter: drop-shadow(0 0 10px rgba(76, 201, 240, 0.8));
  }
}