feat(landing): add landing page with Hero, HowItWorks and FeatureCards

apps/web/src/components/landing/FeatureCards.tsx

@@ -0,0 +1,45 @@
+const features = [
+  {
+    emoji: "📱",
+    title: "Mobile-first",
+    description: "Designed for your thumb. Play on the go, anytime.",
+  },
+  {
+    emoji: "🌍",
+    title: "5 languages",
+    description:
+      "English, Italian, German, French, Spanish — with more on the way.",
+  },
+  {
+    emoji: "⚔️",
+    title: "Multiplayer coming",
+    description: "Challenge friends and see who has the bigger vocabulary.",
+  },
+];
+
+const FeatureCards = () => {
+  return (
+    <section className="py-16">
+      <h2 className="text-center text-3xl font-black tracking-tight text-(--color-text) mb-12">
+        Why lila
+      </h2>
+
+      <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
+        {features.map(({ emoji, title, description }) => (
+          <div
+            key={title}
+            className="flex flex-col gap-3 p-6 rounded-2xl border border-(--color-primary-light)"
+          >
+            <span className="text-3xl">{emoji}</span>
+            <h3 className="text-lg font-bold text-(--color-text)">{title}</h3>
+            <p className="text-sm text-(--color-text-muted) leading-relaxed">
+              {description}
+            </p>
+          </div>
+        ))}
+      </div>
+    </section>
+  );
+};
+
+export default FeatureCards;

apps/web/src/components/landing/Hero.tsx

@@ -0,0 +1,64 @@
+import { Link } from "@tanstack/react-router";
+import { useSession } from "../../lib/auth-client";
+
+const Hero = () => {
+  const { data: session } = useSession();
+
+  return (
+    <section className="relative flex flex-col items-center text-center pt-20 pb-16">
+      <div className="-rotate-1 mb-2">
+        <span className="text-sm font-semibold tracking-widest uppercase text-(--color-accent)">
+          Vocabulary trainer
+        </span>
+      </div>
+
+      <h1 className="text-6xl font-black tracking-tight text-(--color-text) leading-tight">
+        Meet{" "}
+        <span className="inline-block rotate-1 px-3 py-1 bg-(--color-primary) text-white rounded-xl">
+          lila
+        </span>
+      </h1>
+
+      <p className="mt-6 text-xl font-medium text-(--color-text-muted) max-w-sm">
+        Learn words.{" "}
+        <span className="text-(--color-accent) font-bold">Beat friends.</span>
+      </p>
+
+      <div className="mt-4 flex gap-2 flex-wrap justify-center">
+        {["🇬🇧", "🇮🇹", "🇩🇪", "🇫🇷", "🇪🇸"].map((flag) => (
+          <span key={flag} className="text-2xl">
+            {flag}
+          </span>
+        ))}
+      </div>
+
+      <div className="mt-10 flex gap-4">
+        {session ? (
+          <Link
+            to="/play"
+            className="px-8 py-3 rounded-full text-white font-bold text-sm bg-(--color-primary) hover:bg-(--color-primary-dark)"
+          >
+            Start playing →
+          </Link>
+        ) : (
+          <>
+            <Link
+              to="/login"
+              className="px-8 py-3 rounded-full text-white font-bold text-sm bg-(--color-primary) hover:bg-(--color-primary-dark)"
+            >
+              Get started →
+            </Link>
+            <Link
+              to="/login"
+              className="px-8 py-3 rounded-full font-bold text-sm text-(--color-primary) border-2 border-(--color-primary) hover:bg-(--color-surface)"
+            >
+              Login
+            </Link>
+          </>
+        )}
+      </div>
+    </section>
+  );
+};
+
+export default Hero;

apps/web/src/components/landing/HowItWorks.tsx

@@ -0,0 +1,48 @@
+const steps = [
+  {
+    number: "01",
+    title: "See a word",
+    description:
+      "A word appears in your target language, ready to challenge you.",
+  },
+  {
+    number: "02",
+    title: "Pick the translation",
+    description:
+      "Choose from four options. Only one is correct — trust your gut.",
+  },
+  {
+    number: "03",
+    title: "Track your score",
+    description: "See how you did and challenge a friend to beat it.",
+  },
+];
+
+const HowItWorks = () => {
+  return (
+    <section className="py-16">
+      <h2 className="text-center text-3xl font-black tracking-tight text-(--color-text) mb-12">
+        How it works
+      </h2>
+
+      <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
+        {steps.map(({ number, title, description }) => (
+          <div
+            key={number}
+            className="flex flex-col gap-3 p-6 rounded-2xl bg-(--color-surface) border border-(--color-primary-light)"
+          >
+            <span className="text-4xl font-black text-(--color-primary-light)">
+              {number}
+            </span>
+            <h3 className="text-lg font-bold text-(--color-text)">{title}</h3>
+            <p className="text-sm text-(--color-text-muted) leading-relaxed">
+              {description}
+            </p>
+          </div>
+        ))}
+      </div>
+    </section>
+  );
+};
+
+export default HowItWorks;

apps/web/src/routes/index.tsx

@@ -1,11 +1,16 @@
 import { createFileRoute } from "@tanstack/react-router";
+import Hero from "../components/landing/Hero";
+import HowItWorks from "../components/landing/HowItWorks";
+import FeatureCards from "../components/landing/FeatureCards";
 
 export const Route = createFileRoute("/")({ component: Index });
 
 function Index() {
   return (
-    <div className="p-2 text-3xl text-amber-400">
-      <h3>Welcome Home!</h3>
+    <div className="flex flex-col">
+      <Hero />
+      <HowItWorks />
+      <FeatureCards />
     </div>
   );
 }