.hexagon-canvas { width: 100%; max-width: 320px; height: auto; background-color: #f9f9f9; border: 1px solid #ddd; border-radius: 12px; margin: 1rem auto; display: block; box-shadow: 0 2px 6px rgba(0,0,0,0.05); }
        .canvas-container { text-align: center; }
        .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: 4px; }
        .legend-color.blue { background-color: #2c7da0; }
        .unit-selector { max-width: 80px; margin-left: 0.5rem; }
        .unit-hint { font-size: 0.8rem; color: #6c757d; margin-top: 4px; }