.row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        .zone-results {
            background: #e8f5e8;
            border-radius: 10px;
            padding: 20px;
            margin: 20px 0;
        }
        
        .zone-results h4 {
            color: #2e7d32;
            margin-bottom: 15px;
        }
        
        .zone-item {
            display: flex;
            justify-content: space-between;
            margin: 10px 0;
            padding: 8px 0;
            border-bottom: 1px solid #c8e6c9;
        }
        
        .zone-item:last-child {
            border-bottom: none;
        }
        
        .zone-name {
            font-weight: 600;
            color: #2e7d32;
        }
        
        .zone-range {
            font-weight: 700;
            color: #1b5e20;
        }
        
        .tips {
            background: #fff3e0;
            border-left: 4px solid #ff9800;
            padding: 20px;
            margin: 20px 0;
            border-radius: 8px;
        }
        
        .tips h4 {
            color: #f57c00;
            margin-bottom: 10px;
        }
        
        .tips ul {
            color: #424242;
            line-height: 1.6;
            padding-left: 20px;
        }
        
        .warning {
            background: #ffebee;
            border-left: 4px solid #f44336;
            padding: 20px;
            margin: 20px 0;
            border-radius: 8px;
        }
        
        .warning h4 {
            color: #d32f2f;
            margin-bottom: 10px;
        }
        
        .warning p {
            color: #424242;
            line-height: 1.6;
        }
        
        @media (max-width: 768px) {
            .row {
                grid-template-columns: 1fr;
            }
        }