.gradient-bg {
    background: linear-gradient(135deg, #000000 0%, #1e40af 100%);
  }
  .category-content {
    display: none;
    transition: all 0.3s ease;
  }
  .category-content.active {
    display: block;
    animation: fadeIn 0.4s ease-in-out;
  }
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .social-icon {
    transition: all 0.3s ease;
  }
  .social-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }
  .social-icon.active {
    border-color: #3b82f6;
    background-color: rgba(59, 130, 246, 0.1);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
  }
  .service-item {
    transition: all 0.2s ease;
  }
  .service-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
  }
  /* Custom scrollbar */
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
  }
  ::-webkit-scrollbar-thumb {
    background: #94a3b8;
    border-radius: 10px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: #64748b;
  }