:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
        }
         
       
        /* Chart Container */
        .chart-container {
            position: relative;
            height: 400px;
            width: 100%;
            margin: 2rem 0;
        }
        
        /* Financial Summary */
        .financial-summary {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        
        .financial-item {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .financial-item h4 {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
        }
        
        .financial-item .value {
            font-size: 1.5rem;
            font-weight: 700;
        }
        
        .financial-item .detail {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }
        
        /* Toggle switch for calculation modes */
        .calculation-modes {
            display: flex;
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 4px;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        
        .mode-btn {
            flex: 1;
            text-align: center;
            padding: 0.75rem;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 600;
            min-width: 120px;
            margin: 2px;
            background-color: transparent;
            color: var(--text-color);
            border: none;
        }
        
        .mode-btn.active {
            background-color: var(--primary-color);
            color: white;
        }
        
        /* Mode-specific form styling */
        .mode-form {
            display: none;
        }
        
        .mode-form.active {
            display: block;
        }
         
        
        /* Map Container */
        .map-container {
            background-color: #e9ecef;
            border-radius: 8px;
            padding: 1rem;
            margin: 1.5rem 0;
            height: 400px;
            position: relative;
            overflow: hidden;
        }
        
        .map-canvas {
            width: 100%;
            height: 100%;
            background-color: #cfe2ff;
            border-radius: 4px;
            position: relative;
        }
        
        .pollution-source {
            position: absolute;
            width: 20px;
            height: 20px;
            background-color: var(--danger-color);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            box-shadow: 0 0 10px rgba(220, 53, 69, 0.5);
            z-index: 10;
        }
        
        .pollution-zone {
            position: absolute;
            border-radius: 50%;
            transform: translate(-50%, -50%);
            opacity: 0.3;
            z-index: 5;
        }
        
        .zone-high { background-color: #ff0000; }
        .zone-medium { background-color: #ff7e00; }
        .zone-low { background-color: #ffff00; }
        
        /* Risk levels */
        .risk-low { color: #28a745; }
        .risk-medium { color: #ffc107; }
        .risk-high { color: #dc3545; }
        
        .risk-badge {
            display: inline-block;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-weight: bold;
            color: white;
            margin-bottom: 0.5rem;
        }
        
        .risk-low-bg { background-color: #28a745; }
        .risk-medium-bg { background-color: #ffc107; color: #333; }
        .risk-high-bg { background-color: #dc3545; }
        
        /* Generating Indicator */
        .generating-indicator {
            display: none;
            background-color: rgba(44, 125, 160, 0.1);
            padding: 1rem;
            border-radius: 6px;
            text-align: center;
            margin: 1.5rem 0;
            color: var(--primary-color);
            font-weight: 600;
        }
        
        /* Example Data Button */
        .example-btn {
            background-color: var(--secondary-color);
            border: 1px solid var(--primary-color);
            color: var(--primary-color);
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            transition: all 0.3s;
            margin-left: 0.5rem;
        }
        
        .example-btn:hover {
            background-color: var(--primary-color);
            color: white;
        }
        
        /* Responsive Adjustments */
        @media (max-width: 768px) {
 
            .financial-summary {
                grid-template-columns: 1fr;
            }
        }