.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;
        }
        .geometry-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;
        }
        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .legend-color {
            width: 16px;
            height: 16px;
            border-radius: 50%;
        }
        .legend-color.blue {
            background-color: #0d6efd;
        }
        .legend-color.gray {
            background-color: #6c757d;
        }
        .legend-color.green {
            background-color: #28a745;
        }
        .unit-selector {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            margin: 0.5rem 0;
        }
        .unit-btn {
            padding: 0.25rem 0.75rem;
            border-radius: 4px;
            border: 1px solid #ced4da;
            background: #fff;
            font-size: 0.85rem;
            cursor: pointer;
            transition: 0.15s;
        }
        .unit-btn.active {
            background: var(--primary-color);
            color: #fff;
            border-color: var(--primary-color);
        }
        .unit-btn:hover:not(.active) {
            background: #e9ecef;
        }
        .conversion-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .conversion-card {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 1rem;
            text-align: center;
            border: 1px solid #e9ecef;
        }
        .conversion-card .value {
            font-size: 1.8rem;
            font-weight: 600;
            color: var(--primary-color);
        }
        .conversion-card .label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .volume-display {
            background: #fff;
            border-radius: 12px;
            padding: 1.5rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
            border: 1px solid #e9ecef;
            margin-top: 1rem;
        }
        .volume-display .main-value {
            font-size: 3rem;
            font-weight: 700;
            color: var(--primary-color);
            line-height: 1.2;
        }
        .volume-display .sub-value {
            font-size: 1.1rem;
            color: var(--text-muted);
        }
        .dimension-group {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 1rem;
            margin-bottom: 1rem;
        }