.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;
        }
        .geometry-canvas {
            width: 100%;
            height: auto;
            background: #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.granite {
            background: #8B7D6B;
        }
        .legend-color.marble {
            background: #D4C4B7;
        }
        .legend-color.limestone {
            background: #C4B8A8;
        }
        .legend-color.sandstone {
            background: #C4A882;
        }
        .shape-selector {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
        }
        .shape-btn {
            padding: 0.5rem 1rem;
            border: 2px solid #dee2e6;
            border-radius: 4px;
            background: #fff;
            cursor: pointer;
            transition: all 0.2s;
            font-weight: 500;
        }
        .shape-btn.active {
            border-color: var(--primary-color);
            background: rgba(70, 130, 180, 0.1);
            color: var(--primary-color);
        }
        .shape-btn:hover {
            background: #f1f3f5;
        }
        .dimension-group {
            display: none;
        }
        .dimension-group.active {
            display: block;
        }
        .result-card {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 1.2rem;
            margin: 0.5rem 0;
            border-left: 4px solid var(--primary-color);
        }
        .result-label {
            font-size: 0.9rem;
            color: #6c757d;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .result-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
        }
        .result-unit {
            font-size: 1rem;
            color: #6c757d;
            margin-left: 0.3rem;
        }
        .material-badge {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            border-radius: 12px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .material-badge.granite {
            background: #8B7D6B;
            color: #fff;
        }
        .material-badge.marble {
            background: #D4C4B7;
            color: #333;
        }
        .material-badge.limestone {
            background: #C4B8A8;
            color: #333;
        }
        .material-badge.sandstone {
            background: #C4A882;
            color: #333;
        }
        .material-badge.slate {
            background: #5A5A5A;
            color: #fff;
        }
        .material-badge.travertine {
            background: #DBC8B0;
            color: #333;
        }
        .material-badge.quartzite {
            background: #C8C0B8;
            color: #333;
        }
        .material-badge.basalt {
            background: #3D3D3D;
            color: #fff;
        }
        .stone-image-placeholder {
            width: 100%;
            height: 120px;
            background: linear-gradient(135deg, #ddd 0%, #ccc 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #888;
            font-size: 0.9rem;
            margin: 1rem 0;
        }
        .form-select-sm {
            font-size: 0.9rem;
        }