:root {
            --primary-color: #2c7da0;
            --secondary-color: #a9d6e5;
            --accent-color: #01497c;
            --tax-color: #28a745;
            --tax-secondary: #20c997;
            --loss-color: #6c757d;
            --light-gray: #f8f9fa;
            --border-color: #eaeaea;
            --text-color: #333;
            --text-muted: #6c757d;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --math-color: #6f42c1;
        }
        .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);
        }
        .form-control.is-invalid {
            border-color: var(--danger-color);
            box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.15);
        }
        .invalid-feedback {
            color: var(--danger-color);
            font-size: 0.875rem;
            margin-top: 0.25rem;
        }
        .capital-gain {
            color: var(--tax-color);
        }
        .capital-loss {
            color: var(--loss-color);
        }
        .tax-amount {
            color: var(--danger-color);
        }
        .net-proceeds {
            color: var(--primary-color);
        }
        .tax-box {
            background-color: rgba(40, 167, 69, 0.05);
            border-left: 3px solid var(--tax-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        .warning-box {
            background-color: rgba(255, 193, 7, 0.05);
            border-left: 3px solid var(--warning-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }
        @media (max-width: 768px) {
            }
        .calculation-step {
            margin-bottom: 1.5rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px dashed var(--border-color);
        }
        .tax-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
        }
        .tax-table th, .tax-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .tax-table th {
            background-color: var(--light-gray);
            font-weight: 600;
        }
        .tax-table tr:nth-child(even) {
            background-color: rgba(44, 125, 160, 0.05);
        }
        .tax-rate-indicator {
            display: flex;
            align-items: center;
            margin: 1rem 0;
            padding: 1rem;
            background-color: rgba(255,255,255,0.8);
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        .tax-rate-value {
            font-family: 'Courier New', monospace;
            background-color: rgba(40, 167, 69, 0.1);
            padding: 0.5rem;
            border-radius: 4px;
            margin: 0 0.5rem;
        }
        .rate-label {
            font-weight: 600;
            margin-right: 0.5rem;
        }
        .graph-legend {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1rem;
        }
        .legend-item {
            display: flex;
            align-items: center;
        }
        .legend-color {
            width: 20px;
            height: 20px;
            margin-right: 0.5rem;
            border-radius: 4px;
        }
        .cost-color {
            background-color: rgba(44, 125, 160, 0.8);
        }
        .gain-color {
            background-color: rgba(40, 167, 69, 0.8);
        }
        .loss-color {
            background-color: rgba(108, 117, 125, 0.8);
        }
        .tax-color {
            background-color: rgba(220, 53, 69, 0.8);
        }
        .proceeds-color {
            background-color: rgba(111, 66, 193, 0.8);
        }
        .scenario-examples {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1rem 0;
        }
        .scenario-btn {
            background-color: rgba(44, 125, 160, 0.1);
            border: 1px solid rgba(44, 125, 160, 0.2);
            border-radius: 4px;
            padding: 0.5rem 0.75rem;
            font-size: 0.9rem;
            color: var(--primary-color);
            cursor: pointer;
            transition: all 0.2s;
        }
        .scenario-btn:hover {
            background-color: rgba(44, 125, 160, 0.2);
            transform: translateY(-2px);
        }
        .breakdown-item {
            display: flex;
            justify-content: space-between;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border-color);
        }
        .breakdown-item:last-child {
            border-bottom: none;
        }
        .breakdown-label {
            color: var(--text-muted);
        }
        .breakdown-value {
            font-weight: 600;
        }
        .holding-indicator {
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 1rem 0;
            padding: 1rem;
            background-color: rgba(255,255,255,0.8);
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        .period-badge {
            padding: 0.5rem 1rem;
            border-radius: 20px;
            font-weight: 600;
            margin: 0 0.5rem;
        }
        .short-term {
            background-color: rgba(220, 53, 69, 0.1);
            color: var(--danger-color);
        }
        .long-term {
            background-color: rgba(40, 167, 69, 0.1);
            color: var(--tax-color);
        }
        .calculation-details {
            margin-top: 1.5rem;
            padding: 1rem;
            background-color: white;
            border-radius: 6px;
            border: 1px solid var(--border-color);
        }
        .detail-step {
            margin-bottom: 1rem;
            padding-bottom: 1rem;
            border-bottom: 1px solid var(--light-gray);
        }
        .detail-step:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        .detail-formula {
            font-family: 'Courier New', monospace;
            background-color: var(--light-gray);
            padding: 0.5rem;
            border-radius: 4px;
            margin: 0.5rem 0;
        }
        .marginal-rate-container {
            margin-top: 1rem;
            padding: 1rem;
            background-color: rgba(40, 167, 69, 0.05);
            border-radius: 6px;
            border: 1px solid rgba(40, 167, 69, 0.2);
        }
        .state-tax-container {
            margin-top: 1rem;
            padding: 1rem;
            background-color: rgba(44, 125, 160, 0.05);
            border-radius: 6px;
            border: 1px solid rgba(44, 125, 160, 0.2);
        }
        .loss-deduction {
            background-color: rgba(108, 117, 125, 0.05);
            border-left: 3px solid var(--loss-color);
            padding: 1rem;
            border-radius: 0 4px 4px 0;
            margin: 1.5rem 0;
        }