.canvas-container {
            text-align: center;
            margin-top: 1rem;
            background: #f8f9fa;
            border-radius: 8px;
            padding: 15px;
        }
        .geometry-canvas {
            width: 100%;
            height: auto;
            background-color: #fff;
            border: 1px solid #ddd;
            border-radius: 8px;
            max-width: 500px;
            margin: 0 auto;
        }
        .legend {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin-top: 0.8rem;
            font-size: 0.85rem;
        }
        .legend-color {
            width: 14px;
            height: 14px;
            display: inline-block;
            border-radius: 2px;
            margin-right: 5px;
        }
        .kfactor-table td, .kfactor-table th { font-size: 0.9rem; }