Premier commit de la v2 de l'app

app/not-found.tsx

@@ -0,0 +1,32 @@
+"use client";
+
+import { motion } from "framer-motion";
+import { Frown } from "lucide-react";
+import Link from "next/link";
+
+export default function NotFound() {
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-[#0f1117] px-4">
+      <motion.div
+        initial={{ opacity: 0, y: 15 }}
+        animate={{ opacity: 1, y: 0 }}
+        transition={{ duration: 0.4, ease: "easeOut" }}
+        className="text-center max-w-md"
+      >
+        <div className="mb-4 flex justify-center">
+          <Frown className="h-12 w-12 text-red-500" />
+        </div>
+        <h1 className="text-3xl font-bold text-white mb-2">404 — Page introuvable</h1>
+        <p className="text-white/70 mb-6">
+          La page que tu cherches n&apos;existe pas ou a été déplacée.
+        </p>
+        <Link
+          href="/"
+          className="inline-block rounded-lg bg-red-500 px-4 py-2 text-sm font-semibold text-white transition hover:bg-red-600"
+        >
+          Retour à l&apos;accueil
+        </Link>
+      </motion.div>
+    </div>
+  );
+}