.input-group-custom {
            margin-bottom: 1rem;
        }
        .deep-dive {
            margin: 1.8rem 0;
        }
        .deep-dive p {
            text-align: justify;
        }
        .unit-note {
            font-size: 0.9rem;
            color: #6c757d;
        }
        .steps-container {
            background-color: #f8f9fa;
            border: 1px solid #dee2e6;
            border-radius: 6px;
            padding: 1.2rem;
            font-family: 'Courier New', monospace;
            font-size: 1rem;
            white-space: pre-wrap;
            max-height: 400px;
            overflow-y: auto;
            margin-top: 1rem;
        }
        .step-line {
            padding: 0.2rem 0;
            border-bottom: 1px dotted #ccc;
        }
        .legend {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 0.5rem 0;
            font-size: 0.9rem;
        }
        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }