: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;
            --medical-red: #dc3545;
            --medical-green: #198754;
            --medical-yellow: #ffc107;
            --medical-orange: #fd7e14;
            --risk-low: #4caf50;
            --risk-moderate: #ff9800;
            --risk-high: #f44336;
            --risk-very-high: #9c27b0;
        }
         
        .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);
        }
         
        /* Calculation Models Toggle */
        .calculation-models {
            display: flex;
            background-color: var(--light-gray);
            border-radius: 6px;
            padding: 4px;
            margin-bottom: 1.5rem;
            flex-wrap: wrap;
        }
        
        .model-btn {
            flex: 1;
            text-align: center;
            padding: 0.75rem;
            border-radius: 4px;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 600;
            min-width: 150px;
            margin: 2px;
        }
        
        .model-btn.active {
            background-color: var(--primary-color);
            color: white;
        }
        
        /* Risk Factor Sections */
        .risk-factor-section {
            margin-bottom: 2rem;
            padding: 1.5rem;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            background-color: white;
        }
        
        .risk-factor-title {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .risk-factor-item {
            margin-bottom: 1rem;
            padding: 1rem;
            border-radius: 6px;
            background-color: var(--light-gray);
            border-left: 4px solid var(--primary-color);
        }
        
        .risk-factor-item.high-risk {
            border-left-color: var(--medical-red);
            background-color: rgba(220, 53, 69, 0.05);
        }
        
        .risk-factor-item.moderate-risk {
            border-left-color: var(--medical-orange);
            background-color: rgba(253, 126, 20, 0.05);
        }
         
        .risk-result-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);
        }
        
        .risk-score {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .risk-category {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            display: inline-block;
        }
        
        .risk-low {
            background-color: rgba(76, 175, 80, 0.1);
            color: var(--risk-low);
        }
        
        .risk-moderate {
            background-color: rgba(255, 152, 0, 0.1);
            color: var(--risk-moderate);
        }
        
        .risk-high {
            background-color: rgba(244, 67, 54, 0.1);
            color: var(--risk-high);
        }
        
        .risk-very-high {
            background-color: rgba(156, 39, 176, 0.1);
            color: var(--risk-very-high);
        }
        
        .risk-meter {
            height: 20px;
            background: linear-gradient(to right, var(--risk-low), var(--risk-moderate), var(--risk-high), var(--risk-very-high));
            border-radius: 10px;
            margin: 1.5rem 0;
            position: relative;
        }
        
        .risk-indicator {
            position: absolute;
            top: -5px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background-color: white;
            border: 3px solid var(--primary-color);
            transform: translateX(-50%);
            transition: left 1s ease;
        }
        
        /* Chart Container */
        .chart-container {
            position: relative;
            height: 400px;
            width: 100%;
            margin: 2rem 0;
        }
        
        /* Content Sections */
        .section-title {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .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;
        }
        
        .medical-alert {
            background-color: rgba(220, 53, 69, 0.05);
            border-left: 3px solid var(--medical-red);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        .medical-warning {
            background-color: rgba(253, 126, 20, 0.05);
            border-left: 3px solid var(--medical-orange);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        .medical-tip {
            background-color: rgba(40, 167, 69, 0.05);
            border-left: 3px solid var(--medical-green);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
         
        
        /* Responsive Adjustments */
        @media (max-width: 768px) { 
            
            .calculation-models {
                flex-direction: column;
            }
            
            .model-btn {
                min-width: 100%;
            }
        }
        
        /* Custom checkboxes and radio buttons */
        .form-check-input:checked {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
        }
         
        /* Prevention Tips */
        .prevention-tip {
            display: flex;
            align-items: flex-start;
            margin-bottom: 1rem;
            padding: 1rem;
            border-radius: 6px;
            background-color: rgba(76, 175, 80, 0.05);
            border-left: 3px solid var(--medical-green);
        }
        
        .prevention-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background-color: rgba(76, 175, 80, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 1rem;
            flex-shrink: 0;
            color: var(--medical-green);
        }
        
        /* Score Tables */
        .score-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        
        .score-table th, .score-table td {
            padding: 0.75rem;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .score-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        
        .score-table tr:hover {
            background-color: rgba(44, 125, 160, 0.05);
        }
        
        /* Generating indicator */
        .generating-indicator {
            display: none;
            text-align: center;
            padding: 1rem;
            color: var(--text-muted);
        }
        
        /* Risk Comparison */
        .risk-comparison {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        
        .comparison-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);
        }
        
        .comparison-value {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        
        .comparison-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        
        /* Stroke Type Info */
        .stroke-type {
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
            border-left: 5px solid;
        }
        
        .stroke-ischemic {
            background-color: rgba(44, 125, 160, 0.1);
            border-left-color: var(--primary-color);
        }
        
        .stroke-hemorrhagic {
            background-color: rgba(220, 53, 69, 0.1);
            border-left-color: var(--medical-red);
        }
        
        .stroke-tia {
            background-color: rgba(255, 193, 7, 0.1);
            border-left-color: var(--medical-yellow);
        }
        
        /* Clinical Decision Box */
        .clinical-decision {
            background: linear-gradient(135deg, rgba(44, 125, 160, 0.1) 0%, rgba(169, 214, 229, 0.1) 100%);
            border-radius: 8px;
            padding: 1.5rem;
            margin: 2rem 0;
            border: 2px solid var(--primary-color);
        }
        
        .clinical-decision h4 {
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        
        .clinical-decision ul {
            margin-bottom: 0;
        }
        
        .clinical-decision li {
            margin-bottom: 0.5rem;
        }
        
        /* Medication Info */
        .medication-info {
            background-color: rgba(255, 193, 7, 0.05);
            border-left: 3px solid var(--medical-yellow);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        
        /* Lifestyle Change Steps */
        .lifestyle-step {
            display: flex;
            margin-bottom: 1.5rem;
            align-items: flex-start;
        }
         
        /* Emergency Action Plan */
        .emergency-plan {
            background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(248, 215, 218, 0.1) 100%);
            border-radius: 8px;
            padding: 1.5rem;
            margin: 2rem 0;
            border: 2px solid var(--medical-red);
        }
        
        .emergency-plan h4 {
            color: var(--medical-red);
            margin-bottom: 1rem;
        }
        
        /* Validation Improvements */
        .validation-note {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-style: italic;
            margin-top: 0.5rem;
        }
        
        .clinical-validation {
            background-color: rgba(108, 117, 125, 0.05);
            border-left: 3px solid #6c757d;
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }