/* Custom scrollbars and step active states */
        ::-webkit-scrollbar { width: 6px; height: 6px; }
        ::-webkit-scrollbar-track { background: #f1f5f9; }
        ::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
        
        .code-highlight {
            background-color: #1e293b;
            color: #f8fafc;
        }
        .step-active {
            border-left: 4px solid #4a99cb;
            background-color: #f0f9ff;
        }