Card

1"use client";
2 
3import {
4  Children,
5  cloneElement,
6  createContext,
7  forwardRef,
8  isValidElement,
9  useContext,
10  useEffect,
11  useMemo,
12  useRef,
13  type HTMLAttributes,
14  type ReactElement,
15  type ReactNode,
16} from "react";
17import Link from "next/link";
18import { motion, AnimatePresence } from "framer-motion";
19import { cn } from "@/lib/utils";
20import { spring } from "@/lib/springs";
21import { fontWeights } from "@/lib/font-weight";
22import { useShape } from "@/lib/shape-context";
23import { useIcon, type IconComponent } from "@/lib/icon-context";
24import { useProximityHover } from "@/hooks/use-proximity-hover";
25 
26// ---------------------------------------------------------------------------
27// Card is shadcn/ui's compositional card — the same parts and `data-slot`
28// contract (Card, CardHeader, CardTitle, CardDescription, CardAction,
29// CardContent, CardFooter) — with the Fluid Functionalism layer on top:
30// design tokens, a weight-animated title, and a sibling CardGroup that owns
31// layout (stacked list, inline rows, or grid) plus the magnetic proximity
32// highlight that previews where a click will land.
33//
34// Unlike stock shadcn, the surface is transparent and borderless by default:
35// cards inherit whatever substrate their parent provides (see the Surfaces
36// system) and lean on hairline dividers / the proximity highlight rather than
37// a drawn frame. A Card renders fine on its own; inside a CardGroup it
38// registers itself so the group's highlight can find it.
39// ---------------------------------------------------------------------------
40 
41type CardOrientation = "card" | "inline";
42type CardBorder = "none" | "outlined";
43 
44// ── Group context ────────────────────────────────────────
45 
46interface CardGroupContextValue {
47  registerItem: (index: number, element: HTMLElement | null) => void;
48  activeIndex: number | null;
49  /** Index of the persistently-selected card, or -1. Its neighbours drop the
50   *  hairline that would otherwise cut across the selection fill. */
51  selectedIndex: number;
52  orientation: CardOrientation;
53  columns: number;
54  count: number;
55  /** Individual cards carry their own border/tile shape (separated grids). */
56  separated: boolean;
57  /** Inner hairline dividers are drawn between adjacent cards. */
58  divided: boolean;
59  outlined: boolean;
60}
61 
62const CardGroupContext = createContext<CardGroupContextValue | null>(null);
63 
64// … truncated