.chart-container{position:relative;margin:2rem 0;padding:1.5rem;background:#fff;border-radius:8px;box-shadow:0 2px 4px rgba(0,0,0,.1)}.chart-container canvas{max-height:400px}@media (max-width:768px){.chart-container{padding:1rem}.chart-container canvas{max-height:300px}}