diff --git a/apps/web/src/components/NotFound.tsx b/apps/web/src/components/NotFound.tsx
new file mode 100644
index 0000000..be4219d
--- /dev/null
+++ b/apps/web/src/components/NotFound.tsx
@@ -0,0 +1,43 @@
+import { Link } from "@tanstack/react-router";
+
+export default function NotFound() {
+  return (
+    <section className="relative flex flex-col items-center justify-center py-24 text-center overflow-hidden">
+      <div className="absolute inset-0 -z-10">
+        <div className="absolute top-0 left-1/2 h-72 w-184 -translate-x-1/2 rounded-full bg-(--color-primary) opacity-[0.10] blur-3xl" />
+        <div className="absolute top-10 left-1/2 h-72 w-184 -translate-x-1/2 rounded-full bg-(--color-accent) opacity-[0.10] blur-3xl" />
+      </div>
+
+      <div className="-rotate-1 mb-4">
+        <span className="inline-flex items-center gap-2 rounded-full bg-(--color-surface) px-4 py-1 text-xs font-semibold tracking-widest uppercase text-(--color-accent) border border-(--color-primary-light)">
+          lost in translation
+        </span>
+      </div>
+
+      <h1 className="text-8xl font-black tracking-tight text-(--color-text) leading-none">
+        4
+        <span className="inline-block rotate-1 px-3 py-1 bg-(--color-primary) text-white rounded-xl">
+          0
+        </span>
+        4
+      </h1>
+
+      <p className="mt-6 text-lg font-medium text-(--color-text-muted) max-w-sm">
+        This page doesn't exist. Maybe it never did - or maybe you{" "}
+        <span className="text-(--color-accent) font-bold">
+          just guessed wrong
+        </span>
+        .
+      </p>
+
+      <div className="mt-8">
+        <Link
+          to="/"
+          className="px-7 py-3 rounded-full text-white font-bold text-sm bg-(--color-primary) hover:bg-(--color-primary-dark)"
+        >
+          Back to home
+        </Link>
+      </div>
+    </section>
+  );
+}
diff --git a/apps/web/src/components/landing/Hero.tsx b/apps/web/src/components/landing/Hero.tsx
index 6a6de87..81f7bba 100644
--- a/apps/web/src/components/landing/Hero.tsx
+++ b/apps/web/src/components/landing/Hero.tsx
@@ -7,8 +7,8 @@ const Hero = () => {
   return (
     <section className="relative pt-10 md:pt-16 pb-10 md:pb-14">
       <div className="absolute inset-0 -z-10">
-        <div className="absolute -top-24 left-1/2 h-72 w-[46rem] -translate-x-1/2 rounded-full bg-(--color-primary) opacity-[0.10] blur-3xl" />
-        <div className="absolute -top-10 left-1/2 h-72 w-[46rem] -translate-x-1/2 rounded-full bg-(--color-accent) opacity-[0.10] blur-3xl" />
+        <div className="absolute -top-24 left-1/2 h-72 w-184 -translate-x-1/2 rounded-full bg-(--color-primary) opacity-[0.10] blur-3xl" />
+        <div className="absolute -top-10 left-1/2 h-72 w-184 -translate-x-1/2 rounded-full bg-(--color-accent) opacity-[0.10] blur-3xl" />
       </div>
 
       <div className="grid items-center gap-10 md:grid-cols-2">
@@ -28,9 +28,11 @@ const Hero = () => {
           </h1>
 
           <p className="mt-5 text-lg md:text-xl font-medium text-(--color-text-muted) max-w-xl mx-auto md:mx-0">
-            A word appears. You pick the translation. You score points.
-            Then you queue up a room and{" "}
-            <span className="text-(--color-accent) font-bold">beat friends</span>{" "}
+            A word appears. You pick the translation. You score points. Then you
+            queue up a room and{" "}
+            <span className="text-(--color-accent) font-bold">
+              beat friends
+            </span>{" "}
             in real time.
           </p>
 
diff --git a/apps/web/src/routes/__root.tsx b/apps/web/src/routes/__root.tsx
index 1dc4378..4dcdf3c 100644
--- a/apps/web/src/routes/__root.tsx
+++ b/apps/web/src/routes/__root.tsx
@@ -1,6 +1,7 @@
 import { createRootRoute, Outlet } from "@tanstack/react-router";
 import { TanStackRouterDevtools } from "@tanstack/react-router-devtools";
 import Navbar from "../components/navbar/NavBar";
+import NotFound from "../components/NotFound";
 
 const RootLayout = () => {
   return (
@@ -14,4 +15,7 @@ const RootLayout = () => {
   );
 };
 
-export const Route = createRootRoute({ component: RootLayout });
+export const Route = createRootRoute({
+  component: RootLayout,
+  notFoundComponent: NotFound,
+});