.property-table th,
        .property-table td {
            padding: 0.75rem;
            text-align: left;
            border: 1px solid var(--border-color);
        }
        .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;
        }
        .chemistry-canvas {
            width: 100%;
            height: auto;
            background-color: #f9f9f9;
            border: 1px solid #ddd;
            border-radius: 8px;
            margin-top: 1.5rem;
            display: block;
        }
        .canvas-container {
            text-align: center;
            margin-top: 1rem;
        }
        .legend {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 0.5rem 0;
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .legend-color {
            width: 16px;
            height: 16px;
            border-radius: 50%;
        }
        .legend-color.green {
            background-color: #28a745;
        }
        .legend-color.orange {
            background-color: #fd7e14;
        }
        .legend-color.purple {
            background-color: #6f42c1;
        }
        .legend-color.gray {
            background-color: #6c757d;
        }
        .result-display {
            font-size: 1.8rem;
            font-weight: 600;
            color: #0d6efd;
            font-family: 'Cambria Math', 'Latin Modern Math', STIXGeneral, serif;
        }
        .result-label {
            font-weight: 500;
            color: #495057;
        }
        .avogadro-badge {
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 20px;
            font-size: 1rem;
            font-weight: 600;
            display: inline-block;
        }
        .conversion-arrow {
            font-size: 2rem;
            color: #6c757d;
            margin: 0 0.5rem;
        }
        .input-group-sci {
            font-family: 'Courier New', monospace;
        }
        .sci-prefix {
            font-size: 0.8rem;
            color: #6c757d;
        }
        .mole-fact {
            background: #f0f4f8;
            border-radius: 6px;
            padding: 0.8rem 1.2rem;
            margin: 0.5rem 0;
            border-left: 3px solid #28a745;
        }
        .mole-fact i {
            color: #28a745;
            margin-right: 0.5rem;
        }
        .constant-box {
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            border-radius: 10px;
            padding: 1.2rem;
            text-align: center;
            margin: 1.2rem 0;
            border: 1px solid #dee2e6;
        }
        .constant-box .number {
            font-size: 2.2rem;
            font-weight: 700;
            color: #0d6efd;
            font-family: 'Cambria Math', serif;
        }
        .constant-box .label {
            font-size: 1rem;
            color: #495057;
        }
        .unit-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin: 1rem 0;
        }
        .unit-toggle .badge {
            font-size: 1rem;
            padding: 0.4rem 0.8rem;
        }