/* Navbar visual improvements */
.custom-navbar {
  background: linear-gradient(90deg, #1a1a1a, #2d7d46, #1a1a1a);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.custom-navbar.scrolled {
  background: rgba(26, 26, 26, 0.95);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.nav-link-custom {
  color: #f8f9fa !important;
  font-weight: 500;
  transition: all .3s ease;
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  position: relative;
  overflow: hidden;
}

.nav-link-custom::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(45, 125, 70, 0.3), transparent);
  transition: left 0.5s;
}

.nav-link-custom:hover::before {
  left: 100%;
}

.nav-link-custom:hover {
  background: rgba(45, 125, 70, 0.2);
  transform: translateY(-2px);
  color: #fff !important;
}

.nav-link-custom.active {
  background: rgba(45, 125, 70, 0.4);
  color: #fff !important;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
  50% { box-shadow: 0 4px 12px rgba(45, 125, 70, 0.5); }
  100% { box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
}

/* Toggle button icon visible on colored navbar */
.navbar-toggler-icon {
  filter: invert(1);
}