: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;
        }
        @media (min-width: 1200px){
.display-5 {
    font-size: 2.8rem;
}}
    
        /* CLV Calculator Specific Styles */
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .result-card {
            background-color: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.03);
        }
        
        .result-value {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--primary-color);
            margin: 0.5rem 0;
        }
        
        .result-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        
        .chart-container {
            height: 300px;
            margin-top: 2rem;
        }
        
        .key-point {
            display: flex;
            align-items: center;
            margin-bottom: 0.5rem;
        }
        
        .key-color {
            width: 16px;
            height: 16px;
            border-radius: 4px;
            margin-right: 0.75rem;
        }
        
        .key-label {
            font-size: 0.9rem;
        }
        
        .clv-high {
            color: var(--success-color);
            font-weight: 600;
        }
        
        .clv-low {
            color: var(--danger-color);
            font-weight: 600;
        }
        
        .result-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        
        .result-item {
            background-color: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.25rem;
            text-align: center;
        }
        
        .result-item-title {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        
        .result-item-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .result-item-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }
        
        .currency-input {
            position: relative;
        }
        
        .currency-symbol {
            position: absolute;
            left: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            pointer-events: none;
        }
        
        .currency-input input {
            padding-left: 30px;
        }
        
        /* CLV Formulas */
        .formula-card {
            background-color: rgba(44, 125, 160, 0.05);
            border-radius: 8px;
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            border-left: 3px solid var(--primary-color);
        }
        
        .formula-title {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-color);
        }
        
        .formula-content {
            font-family: 'Courier New', monospace;
            background-color: white;
            padding: 1rem;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }
        
        .formula-explanation {
            margin-top: 1rem;
            font-size: 0.9rem;
        }
        
        /* Guide Cards */
        .guide-card {
            background-color: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .guide-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        
        .guide-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 1rem;
        }
        
        .guide-title {
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--primary-color);
        }
        
        .guide-description {
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }
        
        .guide-link {
            font-weight: 600;
            color: var(--primary-color);
            text-decoration: none;
        }
        
        .guide-link:hover {
            text-decoration: underline;
        }
        
        .disclaimer-box {
            background-color: rgba(255, 193, 7, 0.15);
            border-left: 4px solid var(--warning-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
 
        
        .knowledge-title {
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--primary-color);
            padding-bottom: 0.5rem;
            border-bottom: 1px solid var(--border-color);
        }
        
        .knowledge-content {
            line-height: 1.8;
        }
        
        .knowledge-point {
            margin-bottom: 1rem;
            padding-left: 1.5rem;
            position: relative;
        }
        
        .knowledge-point:before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--primary-color);
            font-size: 1.5rem;
            line-height: 1;
        }
        
        .benefit-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 1rem;
            margin-top: 1rem;
        }
        
        .benefit-card {
            background-color: rgba(44, 125, 160, 0.05);
            border-radius: 8px;
            padding: 1rem;
            border-left: 3px solid var(--primary-color);
        }
        
        .benefit-title {
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--primary-color);
        }
        
        .clv-impact {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
            margin-top: 1.5rem;
        }
        
        .impact-card {
            background-color: white;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            padding: 1.25rem;
            text-align: center;
        }
        
        .impact-title {
            font-weight: 600;
            margin-bottom: 0.75rem;
            color: var(--text-muted);
        }
        
        .impact-value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        
        .impact-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.5rem;
        }
        
        .percentage-note {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-style: italic;
            margin-top: 0.25rem;
        }