root = Card([header, bio, sendSection])
header = CardHeader("Alex Rivera", "Senior Product Designer")
bio = TextContent("Alex is a Senior Product Designer on the Core Experience team, where they lead design for our checkout and account flows. For the past six years Alex has championed accessibility and design systems across the company, and they currently mentor three junior designers. Outside of work, Alex enjoys trail running, ceramic pottery, and volunteering at the local community garden.")
sendSection = Card([sendHeader, messageField, actions], "sunk")
sendHeader = Heading("Send a message", "h3")
messageField = FormControl("Message", messageInput, "A note will be delivered to Alex's inbox")
messageInput = TextArea("message", "Type your message to Alex…", 4)
actions = Buttons([sendBtn])
sendBtn = Button("Send message", null, "primary")