.privacy-note, .physics-canvas { width: 100%; height: auto; background-color: #f9f9f9; border: 1px solid #ddd; border-radius: 8px; margin-top: 1rem; display: block; cursor: crosshair; }
        .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.red { background-color: #dc3545; }
        .legend-color.gray { background-color: #6c757d; }
        .tooltip-custom { position: absolute; background: rgba(0,0,0,0.75); color: white; padding: 4px 8px; border-radius: 6px; font-size: 12px; pointer-events: none; transition: opacity 0.2s; font-family: monospace; z-index: 100; }
        .constant-selector { background-color: #e9ecef; padding: 8px 12px; border-radius: 6px; margin-bottom: 12px; display: inline-block; }