root = Card([header, bio, divider, messageSection])
header = CardHeader("Alex Rivera", "Senior Product Designer")
bio = TextContent("Alex is a product designer with eight years of experience shaping tools for creative teams. They care deeply about typography, motion, and making complex workflows feel simple. Before joining the design systems group, Alex led the onboarding redesign at Fieldnote and shipped design tooling at Brightloop.")
divider = Separator()
messageSection = Card([messageTitle, messageForm], "sunk")
messageTitle = Heading("Send a message", "h3")
messageForm = Form("direct-message", formButtons, [messageField])
messageField = FormControl("Message", messageInput, "This goes straight to Alex's inbox.")
messageInput = TextArea("message", "Hi Alex, ...", 4)
formButtons = Buttons([sendBtn, cancelBtn])
sendBtn = Button("Send message", null, "primary")
cancelBtn = Button("Cancel", null, "tertiary")