                  label: 'Remaining',
                            data: remaining,
                            backgroundColor: 'rgba(231, 76, 60, 0.2)',
                            borderColor: '#e74c3c',
                            borderWidth: 2,
                            tension: 0.1,
                            fill: true
                        },
                        {
                            label: 'Used',
                            data: used,
                            backgroundColor: 