#sphereCanvasContainer {
            width: 100%;
            height: 450px;
            background-color: #111;
            border-radius: 12px;
            overflow: hidden;
            margin-top: 1rem;
            border: 1px solid #ddd;
        }
        .legend {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            margin: 0.75rem 0;
            font-size: 0.85rem;
        }
        .legend-item {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .legend-color {
            width: 14px;
            height: 14px;
            border-radius: 50%;
        }
        .legend-color.red { background-color: #ff3333; }
        .legend-color.blue { background-color: #3399ff; }
        .legend-color.gray { background-color: #aaaaaa; }