card
a box that holds one thing: its title, a line of detail, the body and what to do next.
bunx --bun shadcn@latest add @mk/cardexample
upstream
card is a pass item: base-nova’s card with its imports pointed at superthread and every class left as upstream wrote it. the tokens set the look. the radius is zero, so the corners are square. the edge is --foreground at 10 percent, and the fill is --card, which matches the stock in light and sits a step above it in dark.