.capital-pie-container {
            text-align: center;
            margin: 20px 0;
        }
        canvas#capitalPieChart {
            max-width: 280px;
            width: 100%;
            height: auto;
            background: #f9f9f9;
            border-radius: 12px;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
        }
        .wacc-breakdown {
            background: #f8f9fc;
            border-radius: 16px;
            padding: 1rem;
        }
        .legend-color {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            display: inline-block;
            margin-right: 6px;
        }
        .legend-color.equity { background-color: #0d6efd; }
        .legend-color.debt { background-color: #fd7e14; }
        .finance-note {
            background-color: #e7f3ff;
            border-left: 4px solid #0d6efd;
            padding: 0.8rem 1rem;
            border-radius: 8px;
            font-size: 0.9rem;
            margin: 1rem 0;
        }
        .input-group-custom {
            margin-bottom: 1rem;
        }
        .tool-header p {
            font-size: 1.05rem;
        }
        .was-validated .form-control:invalid, .form-control.is-invalid {
            border-color: #dc3545;
            background-image: none;
            padding-right: 0.75rem;
        }
        .invalid-feedback {
            display: block;
            font-size: 0.8rem;
        }
        .info-icon {
            cursor: help;
            margin-left: 4px;
            color: #6c757d;
            font-size: 0.85rem;
        }
        .info-icon:hover {
            color: var(--primary-color);
        }