.property-table th,
        .property-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color, #dee2e6);
        }
        .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;
        }
        .coord-input {
            margin-bottom: 0.5rem;
        }
        .compound-selector {
            margin: 1rem 0;
        }
        .result-detail {
            background: #f8faf9;
            border-radius: 6px;
            padding: 1rem;
            margin: 0.5rem 0;
            border: 1px solid #e9ecef;
        }
        .result-detail .label {
            font-weight: 500;
            color: #495057;
        }
        .result-detail .value {
            font-weight: 600;
            color: #1a6e3a;
        }
        .step-list {
            background: #f8faf9;
            border-radius: 6px;
            padding: 1rem 1.5rem;
            margin: 1rem 0;
            border: 1px solid #e9ecef;
        }
        .step-list li {
            margin-bottom: 0.4rem;
        }
        .periodic-note {
            font-size: 0.9rem;
            color: #6c757d;
            background: #f8f9fa;
            padding: 0.5rem 1rem;
            border-radius: 4px;
            margin: 0.5rem 0;
        }
        .conversion-card {
            background: white;
            border-radius: 8px;
            padding: 1.5rem;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            border: 1px solid #e9ecef;
            margin-bottom: 1.5rem;
        }
        .conversion-card .card-title {
            font-weight: 600;
            color: #1a6e3a;
            margin-bottom: 0.75rem;
        }