:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
        }
          
        .simulation-container {
            position: relative;
            width: 100%;
            height: 400px;
            background-color: #f8f9fa;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 1.5rem;
        }
        
        #simulationCanvas {
            width: 100%;
            height: 100%;
            display: block;
        }
        
        .simulation-controls {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .control-group {
            flex: 1;
            min-width: 200px;
        }
        
        .simulation-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
            margin-top: 1.5rem;
        }
        
        .stat-item {
            background: white;
            border-radius: 6px;
            padding: 1rem;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        
        .stat-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }
        
        .speed-chart-container {
            height: 250px;
            margin-top: 1.5rem;
        }
        
        .simulation-and-chart {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 1.5rem;
        }
        
        @media (max-width: 992px) {
            .simulation-and-chart {
                grid-template-columns: 1fr;
            }
        }
        
        .info-box {
            background-color: rgba(44, 125, 160, 0.05);
            border-left: 3px solid var(--primary-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        .distribution-status {
            display: flex;
            align-items: center;
            margin-top: 1rem;
            padding: 0.5rem;
            border-radius: 4px;
            background-color: rgba(40, 167, 69, 0.1);
            color: #28a745;
        }
        
        .speed-control {
            margin-top: 1rem;
        }
        
        .progress {
            height: 8px;
        }
        
        .progress-bar {
            transition: width 0.3s ease;
        }