.result-value-large {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
            font-family: 'Courier New', monospace;
        }
        .formula-card {
            background: #f8f9fe;
            border-radius: 16px;
            padding: 1.2rem;
            margin: 1rem 0;
            border-left: 5px solid var(--primary-color);
            font-family: 'Cambria Math', 'Latin Modern Math', monospace;
        }
        .series-type-selector {
            background: white;
            border-radius: 12px;
            padding: 0.5rem;
            border: 1px solid #dee2e6;
            margin-bottom: 1.5rem;
        }
        .dynamic-inputs {
            background: #ffffff;
            border-radius: 12px;
            padding: 1rem;
            margin-top: 0.5rem;
            box-shadow: 0 2px 6px rgba(0,0,0,0.03);
        }
        .step-explanation {
            background-color: rgba(70, 130, 180, 0.05);
            border-radius: 12px;
            padding: 1.2rem;
            margin: 1.5rem 0;
        }
        .series-table th, .series-table td {
            vertical-align: middle;
        }
        .badge-series {
            background: #2c7da0;
            color: white;
            font-size: 0.8rem;
        }
        .math-symbol {
            font-family: 'Times New Roman', serif;
            font-size: 1.2rem;
        }
        .convergence-note {
            border-radius: 12px;
            background: #e9ecef;
            padding: 0.75rem 1rem;
            font-size: 0.9rem;
        }
        .result-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 1rem;
        }
        .clear-result-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            line-height: 1;
            cursor: pointer;
            opacity: 0.6;
            transition: opacity 0.2s;
        }
        .clear-result-btn:hover {
            opacity: 1;
        }