.error-note { background-color: #f8d7da; border: 1px solid #f5c6cb; color: #721c24; padding: 0.5rem 1rem; border-radius: 4px; margin: 1rem 0; }
        .geometry-canvas { width: 100%; height: auto; background-color: #f9f9fc; border: 1px solid #cfdde6; border-radius: 12px; margin-top: 1.5rem; display: block; box-shadow: 0 2px 6px rgba(0,0,0,0.05); }
        .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: 2px; }
        .legend-color.blue { background-color: #0d6efd; }
        .legend-color.gray { background-color: #6c757d; }
        .legend-color.green { background-color: #198754; }
        .legend-color.orange { background-color: #fd7e14; }
        .input-group-custom { margin-bottom: 1rem; }
        .angle-slider { width: 100%; margin-top: 0.5rem; }
        .unit-note { font-size: 0.85rem; color: #6c757d; }