: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;
        }
         
        .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: var(--text-color);
        }
         
        .breadcrumb {
            background-color: transparent;
            padding: 0.5rem 0;
            margin-bottom: 0.5rem;
        }
        
        .breadcrumb-item a {
            color: var(--text-muted);
            text-decoration: none;
        }
        
        .breadcrumb-item.active {
            color: var(--text-color);
        }
         
        /* Responsive Adjustments */
        @media (max-width: 768px) { 
            .financial-summary {
                grid-template-columns: 1fr;
            }
            
            .nav-tabs .nav-link {
                padding: 0.5rem 1rem;
                font-size: 0.9rem;
            }
        }
         
        
        /* Data table specific styles */
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .data-table th, .data-table td {
            padding: 0.75rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .data-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        
        .data-table tr:hover {
            background-color: rgba(44, 125, 160, 0.05);
        }
         
        /* Molecular clock specific styles */
        .clock-model {
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 1rem;
            margin-bottom: 1rem;
        }
        
        .clock-model h5 {
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        /* Tab styles */
        .nav-tabs {
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 1.5rem;
        }
        
        .nav-tabs .nav-link {
            border: none;
            color: var(--text-muted);
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 6px 6px 0 0;
        }
        
        .nav-tabs .nav-link.active {
            color: var(--primary-color);
            background-color: white;
            border-bottom: 3px solid var(--primary-color);
        }
        
        .tab-content {
            padding: 1.5rem 0;
        }
        
        .tab-pane {
            display: none;
        }
        
        .tab-pane.active {
            display: block;
        }