.geometry-canvas {
            width: 100%;
            height: auto;
            background-color: #f9f9f9;
            border: 1px solid #ddd;
            border-radius: 8px;
            margin-top: 1.5rem;
            display: block;
        }
        .canvas-container {
            text-align: center;
            margin-top: 1rem;
        }.math-result{text-align:left}
        .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: 50%;
        }
        .legend-color.red { background-color: #e74c3c; }
        .legend-color.blue { background-color: #2c3e50; }
        .inflection-badge {
            background-color: #e74c3c;
            color: white;
            border-radius: 20px;
            padding: 2px 8px;
            font-size: 0.8rem;
        }
        .coord-input {
            width: 100%;
        }
        .interval-list {
            background: #f8f9fa;
            padding: 1rem;
            border-radius: 8px;
        }