: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;
        }
        
   
        .page-header {
            background: linear-gradient(135deg, rgba(169, 214, 229, 0.4) 0%, rgba(44, 125, 160, 0.4) 100%);
            padding: 1.5rem 0;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(44, 125, 160, 0.2);
            position: relative;
            overflow: hidden;color:black
        }
         
        .summary-card {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            border: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .summary-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .summary-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        /* Chart Container */
        .chart-container {
            position: relative;
            height: 400px;
            width: 100%;
            margin: 2rem 0;
        }
        
        /* Water Quality Parameters Table */
        .parameter-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .parameter-table th, .parameter-table td {
            padding: 0.75rem;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        
        .parameter-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        
        .parameter-table tr:hover {
            background-color: rgba(44, 125, 160, 0.05);
        }
        
         
        /* Responsive Adjustments */
        @media (max-width: 768px) {
 
            .parameter-group {
                grid-template-columns: 1fr;
            }
        }
     
        /* Water Type Selector */
        .water-type-selector {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin-bottom: 1.5rem;
        }
        
        .water-type-btn {
            padding: 0.75rem 1.5rem;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            background-color: white;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
            flex: 1;
            min-width: 120px;
        }
        
        .water-type-btn.active {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        
        /* Parameter Input Groups */
        .parameter-group {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .parameter-input {
            display: flex;
            flex-direction: column;
        }
        
        .parameter-input label {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-color);
        }
        
        .parameter-input .unit {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.25rem;
        }
        
        /* Water Quality Rating */
        .quality-rating {
            display: flex;
            align-items: center;
            margin: 1.5rem 0;
            padding: 1rem;
            border-radius: 8px;
            background-color: rgba(44, 125, 160, 0.05);
        }
        
        .rating-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            font-size: 1.5rem;
            color: white;
        }
        
        .rating-content {
            flex-grow: 1;
        }
        
        .rating-title {
            font-weight: 600;
            margin-bottom: 0.25rem;
        }
        
        .rating-description {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        /* Quality Cards */
        .quality-cards {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        
        .quality-card {
            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);
        }
        
        .quality-card h4 {
            font-size: 1.1rem;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .quality-card .value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-color);
            margin-bottom: 0.5rem;
        }
        
        .quality-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        
        /* FAQ Accordion */
        .faq-section {
            margin-top: 3rem;
        }
        
        .accordion-button {
            font-weight: 600;
            color: var(--primary-color);
            background-color: white;
            border: 1px solid var(--border-color);
        }
        
        .accordion-button:not(.collapsed) {
            background-color: rgba(44, 125, 160, 0.05);
            color: var(--primary-color);
            border-color: var(--primary-color);
        }
        
        .accordion-button:focus {
            box-shadow: 0 0 0 0.25rem rgba(44, 125, 160, 0.25);
            border-color: var(--primary-color);
        }
        
        .accordion-body {
            background-color: white;
            border: 1px solid var(--border-color);
            border-top: none;
            border-radius: 0 0 0.375rem 0.375rem;
        }
        
        .accordion-item {
            border: none;
            margin-bottom: 0.5rem;
        }
        
        .faq-icon {
            color: var(--primary-color);
            margin-right: 0.5rem;
        }
        
        /* Parameter Status Indicators */
        .parameter-status {
            display: inline-block;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            margin-right: 0.5rem;
        }
        
        .status-excellent { background-color: #28a745; }
        .status-good { background-color: #7bc143; }
        .status-fair { background-color: #ffc107; }
        .status-poor { background-color: #fd7e14; }
        .status-very-poor { background-color: #dc3545; }
        
        /* Confidence Interval */
        .confidence-interval {
            display: flex;
            align-items: center;
            margin-top: 1rem;
            padding: 0.75rem;
            background-color: rgba(255, 255, 255, 0.7);
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        
        .confidence-label {
            font-weight: 600;
            margin-right: 0.5rem;
            color: var(--text-muted);
        }
        
        .confidence-value {
            font-weight: 600;
            color: var(--primary-color);
        }
        
        /* Generating Indicator */
        .generating-indicator {
            display: none;
            padding: 1rem;
            text-align: center;
            background-color: rgba(44, 125, 160, 0.1);
            border-radius: 6px;
            margin: 1rem 0;
            color: var(--primary-color);
            font-weight: 600;
        }
        
        /* Tabs for Parameter Categories */
        .parameter-tabs {
            margin-bottom: 1.5rem;
        }@media (max-width: 768px) { 
        .quality-rating{display:grid} 
.parameter-group{grid-template-columns: 1fr;}
}
        .parameter-tabs .nav-link {
            color: var(--text-muted);
            border: none;
            border-bottom: 2px solid transparent;
            border-radius: 0;
            padding: 0.75rem 1rem;
        }
        
        .parameter-tabs .nav-link.active {
            color: var(--primary-color);
            background-color: transparent;
            border-bottom: 2px solid var(--primary-color);
        }
        
        .parameter-tab-content {
            padding: 1rem 0;
        }
        
        .tab-pane {
            display: none;
        }
        
        .tab-pane.active {
            display: block;
        }