root = Card([locationCard, deliveryDateCard, reportSection])
locationCard = Card([locationHeader, locationText])
deliveryDateCard = Card([deliveryDateHeader, deliveryDateText])
reportSection = Card([reportBtn])
locationHeader = CardHeader("Package Location")
locationText = TextContent("Currently in transit to New York", "default")
deliveryDateHeader = CardHeader("Estimated Delivery")
deliveryDateText = TextContent("Dec 15, 2025", "default")
reportBtn = Button("Report Problem", null, "secondary")