.complex-point {
            font-weight: 600;
            color: #0d6efd;
        }
        .canvas-container {
            background: #fefefe;
            border-radius: 12px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            margin-top: 20px;
            text-align: center;
        }
        canvas {
            width: 100%;
            height: auto;
            background: #ffffff;
            border-radius: 12px;
            border: 1px solid #dee2e6;
        }
        .legend {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.2rem;
            margin-top: 12px;
        }
        .legend-color {
            width: 18px;
            height: 18px;
            border-radius: 50%;
            display: inline-block;
            margin-right: 6px;
        }