Phase 2

Base app architecture:

    Route groups for customer, staff and owner.
* Reusable design system with around 20 UI components.
* Complete Prisma schema.
* Authentication with email/password and Google.
* Role and permission model.
* Protected routes.
* Clean separation between features, services, components and shared utilities.

src/app/page.tsx

@@ -0,0 +1,46 @@
+import { Scissors } from "lucide-react";
+import Link from "next/link";
+import { redirect } from "next/navigation";
+import { auth } from "@/auth";
+import { Button } from "@/components/ui/button";
+
+export default async function WelcomePage() {
+  const session = await auth();
+  if (session?.user) {
+    redirect("/home");
+  }
+
+  return (
+    <div className="flex min-h-screen flex-col justify-end bg-ink px-8 pb-16 text-white">
+      <div className="mb-8 flex h-16 w-16 items-center justify-center rounded-2xl bg-white text-ink">
+        <Scissors className="h-7 w-7" aria-hidden="true" />
+      </div>
+      <h1 className="mb-4 text-5xl font-bold tracking-tight">NextChair</h1>
+      <p className="mb-12 max-w-xs text-lg text-white/70">
+        Precision grooming at your fingertips. Book your next visit in seconds.
+      </p>
+
+      <div className="space-y-4">
+        <Button asChild variant="secondary" size="lg" className="w-full bg-white">
+          <Link href="/register">Create Account</Link>
+        </Button>
+        <Button
+          asChild
+          variant="secondary"
+          size="lg"
+          className="w-full border-2 border-white/20 bg-transparent text-white hover:bg-white/10"
+        >
+          <Link href="/sign-in">Sign In</Link>
+        </Button>
+      </div>
+
+      {/*
+        The templates' "Continue as Guest" goes straight to the business
+        home/booking flow (template 20 → 15). That flow isn't built yet
+        (Phase 1: Customer Booking), so this button isn't shown rather than
+        linking somewhere that doesn't work yet — see
+        docs/implementation-plan.md §16 for the phase it belongs to.
+      */}
+    </div>
+  );
+}