.canvas-container {
            text-align: center;
            margin-top: 1rem;
        }
        .viscosity-canvas {
            width: 100%;
            height: auto;
            background-color: #fefefe;
            border: 1px solid #ddd;
            border-radius: 8px;
            box-shadow: 0 2px 6px rgba(0,0,0,0.05);
        }
        .legend {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 0.5rem 0;
            font-size: 0.85rem;
        }
        .legend-color {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            display: inline-block;
        }
        .legend-color.blue-curve { background-color: #0d6efd; border-radius: 2px; width: 20px; height: 3px; vertical-align: middle; }
        .legend-color.red-dot { background-color: #dc3545; }
        .slider-container {
            margin: 1rem 0;
        }
        .coord-input {
            margin-bottom: 0.5rem;
        }
        .unit-note {
            font-size: 0.85rem;
            color: #6c757d;
        }
        .reference-badge {
            background-color: #e9ecef;
            border-radius: 20px;
            padding: 0.2rem 0.8rem;
            font-size: 0.8rem;
            display: inline-block;
            margin-right: 0.5rem;
        }
        .accuracy-note {
            font-size: 0.85rem;
            background-color: #e7f1ff;
            padding: 0.5rem 1rem;
            border-radius: 6px;
            margin-top: 0.75rem;
        }