Upgrade Next.js to 16.3.6

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.env.example

@@ -1,7 +1,7 @@
 # Shopify Storefront
 NEXT_PUBLIC_SHOPIFY_DOMAIN=mock.shop
-# NEXT_PUBLIC_SHOPIFY_STOREFRONT_ACCESS_TOKEN=
+# NEXT_PUBLIC_SHOPIFY_PUBLIC_ACCESS_TOKEN=
-# NEXT_PUBLIC_SHOPIFY_API_VERSION=2025-07
+# NEXT_PUBLIC_SHOPIFY_API_VERSION=2026-10
 
 # Store assistant — set to 1 to show the Ask launcher; anything else hides it
 NEXT_PUBLIC_ENABLE_AI=0

.gitignore

@@ -5,3 +5,6 @@ next-env.d.ts
 .yarn/install-state.gz
 .env*.local
 tsconfig.tsbuildinfo
+
+# Temp tsconfig written by `hydrogen gql check`; normally cleaned up on exit
+.hydrogen-gql-*.json

app/account/activate/[id]/[token]/page.tsx

@@ -1,8 +1,6 @@
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import AccountForm from '@/components/shopify/account-form';
 
-export const metadata = { title: 'Activate your account — Shop' };
+export const metadata = { title: 'Activate your account' };
 
 // Shopify's emailed activation link is /account/activate/{id}/{token}.
 export default async function Page({
@@ -13,27 +11,23 @@ export default async function Page({
   const { id, token } = await params;
 
   return (
-    <>
+    <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
-      <Header storeName="Shop" logoUrl="" />
+      <AccountForm
-      <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
+        title="Activate your account"
-        <AccountForm
+        description="Choose a password to finish setting up your account."
-          title="Activate your account"
+        fields={[
-          description="Choose a password to finish setting up your account."
+          {
-          fields={[
+            name: 'password',
-            {
+            label: 'Password',
-              name: 'password',
+            type: 'password',
-              label: 'Password',
+            autoComplete: 'new-password',
-              type: 'password',
+          },
-              autoComplete: 'new-password',
+        ]}
-            },
+        submitLabel="Activate account"
-          ]}
+        endpoint="/api/account/activate"
-          submitLabel="Activate account"
+        extraPayload={{ id, activationToken: token }}
-          endpoint="/api/account/activate"
+        redirectTo="/account"
-          extraPayload={{ id, activationToken: token }}
+      />
-          redirectTo="/account"
+    </main>
-        />
-      </main>
-      <Footer storeName="Shop" copyright="© 2026 Shop. All rights reserved." />
-    </>
   );
 }

app/account/login/page.tsx

@@ -1,44 +1,38 @@
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import AccountForm, { AccountFormLink } from '@/components/shopify/account-form';
 
-export const metadata = { title: 'Sign in — Shop' };
+export const metadata = { title: 'Sign in' };
 
 export default function Page() {
   return (
-    <>
+    <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
-      <Header storeName="Shop" logoUrl="" />
+      <AccountForm
-      <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
+        title="Sign in"
-        <AccountForm
+        fields={[
-          title="Sign in"
+          { name: 'email', label: 'Email', type: 'email', autoComplete: 'email' },
-          fields={[
+          {
-            { name: 'email', label: 'Email', type: 'email', autoComplete: 'email' },
+            name: 'password',
-            {
+            label: 'Password',
-              name: 'password',
+            type: 'password',
-              label: 'Password',
+            autoComplete: 'current-password',
-              type: 'password',
+          },
-              autoComplete: 'current-password',
+        ]}
-            },
+        submitLabel="Sign in"
-          ]}
+        endpoint="/api/account/login"
-          submitLabel="Sign in"
+        redirectTo="/account"
-          endpoint="/api/account/login"
+        footer={
-          redirectTo="/account"
+          <>
-          footer={
+            <span>
-            <>
+              New here?{' '}
-              <span>
+              <AccountFormLink href="/account/register">
-                New here?{' '}
+                Create an account
-                <AccountFormLink href="/account/register">
-                  Create an account
-                </AccountFormLink>
-              </span>
-              <AccountFormLink href="/account/recover">
-                Forgot your password?
               </AccountFormLink>
-            </>
+            </span>
-          }
+            <AccountFormLink href="/account/recover">
-        />
+              Forgot your password?
-      </main>
+            </AccountFormLink>
-      <Footer storeName="Shop" copyright="© 2026 Shop. All rights reserved." />
+          </>
-    </>
+        }
+      />
+    </main>
   );
 }

app/account/page.tsx

@@ -1,11 +1,9 @@
 import { redirect } from 'next/navigation';
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import OrderHistory from '@/components/shopify/order-history';
 import { getSessionToken } from '@/services/shopify/session';
 import { getCustomer } from '@/services/shopify/customer';
 
-export const metadata = { title: 'Order history — Shop' };
+export const metadata = { title: 'Order history' };
 
 export default async function Page() {
   const token = await getSessionToken();
@@ -16,23 +14,17 @@ export default async function Page() {
   if (!customer) redirect('/account/login');
 
   return (
-    <>
+    <main className="max-w-screen-2xl mx-auto w-full px-8 py-12">
-      <Header storeName="Shop" logoUrl="" />
+      <h1 className="text-2xl md:text-3xl font-normal text-foreground">
+        Order history
+      </h1>
+      <p className="mt-1 text-sm text-muted-foreground">
+        {customer.displayName} · {customer.email}
+      </p>
 
-      <main className="max-w-screen-2xl mx-auto w-full px-8 py-12">
+      <div className="mt-10">
-        <h1 className="text-2xl md:text-3xl font-normal text-foreground">
+        <OrderHistory customer={customer} />
-          Order history
+      </div>
-        </h1>
+    </main>
-        <p className="mt-1 text-sm text-muted-foreground">
-          {customer.displayName} · {customer.email}
-        </p>
-
-        <div className="mt-10">
-          <OrderHistory customer={customer} />
-        </div>
-      </main>
-
-      <Footer storeName="Shop" copyright="© 2026 Shop. All rights reserved." />
-    </>
   );
 }

app/account/recover/page.tsx

@@ -1,29 +1,23 @@
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import AccountForm, { AccountFormLink } from '@/components/shopify/account-form';
 
-export const metadata = { title: 'Reset password — Shop' };
+export const metadata = { title: 'Reset password' };
 
 export default function Page() {
   return (
-    <>
+    <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
-      <Header storeName="Shop" logoUrl="" />
+      <AccountForm
-      <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
+        title="Reset password"
-        <AccountForm
+        description="Enter your email and we'll send you a link to set a new password."
-          title="Reset password"
+        fields={[
-          description="Enter your email and we'll send you a link to set a new password."
+          { name: 'email', label: 'Email', type: 'email', autoComplete: 'email' },
-          fields={[
+        ]}
-            { name: 'email', label: 'Email', type: 'email', autoComplete: 'email' },
+        submitLabel="Send reset link"
-          ]}
+        endpoint="/api/account/recover"
-          submitLabel="Send reset link"
+        successMessage="If that email has an account, a reset link is on its way."
-          endpoint="/api/account/recover"
+        footer={
-          successMessage="If that email has an account, a reset link is on its way."
+          <AccountFormLink href="/account/login">Back to sign in</AccountFormLink>
-          footer={
+        }
-            <AccountFormLink href="/account/login">Back to sign in</AccountFormLink>
+      />
-          }
+    </main>
-        />
-      </main>
-      <Footer storeName="Shop" copyright="© 2026 Shop. All rights reserved." />
-    </>
   );
 }

app/account/register/page.tsx

@@ -1,49 +1,43 @@
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import AccountForm, { AccountFormLink } from '@/components/shopify/account-form';
 
-export const metadata = { title: 'Create account — Shop' };
+export const metadata = { title: 'Create account' };
 
 export default function Page() {
   return (
-    <>
+    <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
-      <Header storeName="Shop" logoUrl="" />
+      <AccountForm
-      <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
+        title="Create account"
-        <AccountForm
+        fields={[
-          title="Create account"
+          {
-          fields={[
+            name: 'firstName',
-            {
+            label: 'First name',
-              name: 'firstName',
+            autoComplete: 'given-name',
-              label: 'First name',
+            required: false,
-              autoComplete: 'given-name',
+          },
-              required: false,
+          {
-            },
+            name: 'lastName',
-            {
+            label: 'Last name',
-              name: 'lastName',
+            autoComplete: 'family-name',
-              label: 'Last name',
+            required: false,
-              autoComplete: 'family-name',
+          },
-              required: false,
+          { name: 'email', label: 'Email', type: 'email', autoComplete: 'email' },
-            },
+          {
-            { name: 'email', label: 'Email', type: 'email', autoComplete: 'email' },
+            name: 'password',
-            {
+            label: 'Password',
-              name: 'password',
+            type: 'password',
-              label: 'Password',
+            autoComplete: 'new-password',
-              type: 'password',
+          },
-              autoComplete: 'new-password',
+        ]}
-            },
+        submitLabel="Create account"
-          ]}
+        endpoint="/api/account/register"
-          submitLabel="Create account"
+        redirectTo="/account"
-          endpoint="/api/account/register"
+        footer={
-          redirectTo="/account"
+          <span>
-          footer={
+            Already have an account?{' '}
-            <span>
+            <AccountFormLink href="/account/login">Sign in</AccountFormLink>
-              Already have an account?{' '}
+          </span>
-              <AccountFormLink href="/account/login">Sign in</AccountFormLink>
+        }
-            </span>
+      />
-          }
+    </main>
-        />
-      </main>
-      <Footer storeName="Shop" copyright="© 2026 Shop. All rights reserved." />
-    </>
   );
 }

app/account/reset/[id]/[token]/page.tsx

@@ -1,8 +1,6 @@
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import AccountForm from '@/components/shopify/account-form';
 
-export const metadata = { title: 'Set a new password — Shop' };
+export const metadata = { title: 'Set a new password' };
 
 // Shopify's emailed reset link is /account/reset/{id}/{token}.
 export default async function Page({
@@ -13,26 +11,22 @@ export default async function Page({
   const { id, token } = await params;
 
   return (
-    <>
+    <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
-      <Header storeName="Shop" logoUrl="" />
+      <AccountForm
-      <main className="max-w-screen-2xl mx-auto w-full px-8 py-16">
+        title="Set a new password"
-        <AccountForm
+        fields={[
-          title="Set a new password"
+          {
-          fields={[
+            name: 'password',
-            {
+            label: 'New password',
-              name: 'password',
+            type: 'password',
-              label: 'New password',
+            autoComplete: 'new-password',
-              type: 'password',
+          },
-              autoComplete: 'new-password',
+        ]}
-            },
+        submitLabel="Save password"
-          ]}
+        endpoint="/api/account/reset"
-          submitLabel="Save password"
+        extraPayload={{ id, resetToken: token }}
-          endpoint="/api/account/reset"
+        redirectTo="/account"
-          extraPayload={{ id, resetToken: token }}
+      />
-          redirectTo="/account"
+    </main>
-        />
-      </main>
-      <Footer storeName="Shop" copyright="© 2026 Shop. All rights reserved." />
-    </>
   );
 }

app/collections/[handle]/page.tsx

@@ -1,23 +1,53 @@
-import Header from '@/components/shopify/header';
+import type { Metadata } from 'next';
-import Footer from '@/components/shopify/footer';
 import CollectionDetail from '@/components/shopify/collection-detail';
+import { getCollectionProductsPage } from '@/services/shopify/catalog';
+import { truncate } from '@/lib/utils';
+
+export async function generateMetadata({
+  params,
+}: {
+  params: Promise<{ handle: string }>;
+}): Promise<Metadata> {
+  const { handle } = await params;
+
+  // No collection-only query exists, so ask for the smallest page of products
+  // and use just the collection node off it.
+  const { collection } = await getCollectionProductsPage(handle, {
+    first: 1,
+  }).catch(() => ({ collection: null }));
+
+  if (!collection) return { title: 'Collection' };
+
+  const description = collection.description
+    ? truncate(collection.description, 160)
+    : `Shop the ${collection.title} collection.`;
+
+  return {
+    title: collection.title,
+    description,
+    alternates: { canonical: `/collections/${collection.handle}` },
+    openGraph: {
+      title: collection.title,
+      description,
+      url: `/collections/${collection.handle}`,
+      images: collection.image
+        ? [
+            {
+              url: collection.image.url,
+              alt: collection.image.altText ?? collection.title,
+            },
+          ]
+        : undefined,
+    },
+    twitter: {
+      card: 'summary_large_image',
+      title: collection.title,
+      description,
+      images: collection.image ? [collection.image.url] : undefined,
+    },
+  };
+}
 
 export default function Page() {
-  return (
+  return <CollectionDetail />;
-    <>
-      <Header
-        storeName="Shop"
-        logoUrl=""
-        links={[
-          { label: 'Products', url: '/' },
-          { label: 'Collections', url: '/collections' },
-        ]}
-      />
-      <CollectionDetail />
-      <Footer
-        storeName="Shop"
-        copyright="© 2026 Shop. All rights reserved."
-      />
-    </>
-  );
 }

app/collections/page.tsx

@@ -1,23 +1,11 @@
-import Header from '@/components/shopify/header';
+import type { Metadata } from 'next';
-import Footer from '@/components/shopify/footer';
 import Collections from '@/components/shopify/collections';
 
+export const metadata: Metadata = {
+  title: 'Collections',
+  description: 'Browse every collection in the store.',
+};
+
 export default function Page() {
-  return (
+  return <Collections title="Our Collections" />;
-    <>
-      <Header
-        storeName="Shop"
-        logoUrl=""
-        links={[
-          { label: 'Products', url: '/' },
-          { label: 'Collections', url: '/collections' },
-        ]}
-      />
-      <Collections title="Our Collections" />
-      <Footer
-        storeName="Shop"
-        copyright="© 2026 Shop. All rights reserved."
-      />
-    </>
-  );
 }

app/error.tsx

@@ -10,7 +10,7 @@ export default function Error({
   reset: () => void;
 }) {
   return (
-    <div className="flex items-center justify-center min-h-screen">
+    <div className="flex items-center justify-center min-h-[60vh]">
       <div className="flex items-center gap-6">
         <div className="text-lg font-medium text-black font-sans whitespace-nowrap">
           Something went wrong

app/layout.tsx

@@ -1,7 +1,11 @@
 import React from 'react';
+import type { Metadata } from 'next';
 import './globals.css';
 import { Geist, Geist_Mono } from 'next/font/google';
+import Header from '@/components/shopify/header';
+import Footer from '@/components/shopify/footer';
 import StoreAssistant from '@/components/shopify/store-assistant';
+import { site } from '@/config/site';
 
 const geist = Geist({
   subsets: ['latin'],
@@ -13,6 +17,29 @@ const geistMono = Geist_Mono({
   variable: '--font-geist-mono',
 });
 
+// Routes only set their own `title`; the template appends the store name, and
+// everything else here is inherited unless a page overrides it.
+export const metadata: Metadata = {
+  metadataBase: new URL(site.url),
+  title: {
+    default: site.storeName,
+    template: `%s — ${site.storeName}`,
+  },
+  description: site.description,
+  openGraph: {
+    type: 'website',
+    siteName: site.storeName,
+    title: site.storeName,
+    description: site.description,
+    url: '/',
+  },
+  twitter: {
+    card: 'summary_large_image',
+    title: site.storeName,
+    description: site.description,
+  },
+};
+
 export default function RootLayout({
   children,
 }: {
@@ -20,8 +47,16 @@ export default function RootLayout({
 }) {
   return (
     <html lang="en" className={`${geist.variable} ${geistMono.variable}`}>
-      <body className="font-body antialiased bg-background text-foreground m-0 p-0">
+      <body className="font-body antialiased bg-background text-foreground m-0 p-0 flex min-h-screen flex-col">
-        {children}
+        {/* Header owns the cart drawer, search and account menu, so every
+            route gets them by rendering here rather than page by page. */}
+        <Header
+          storeName={site.storeName}
+          logoUrl={site.logoUrl}
+          links={site.navLinks}
+        />
+        <div className="flex-1">{children}</div>
+        <Footer storeName={site.storeName} copyright={site.copyright} />
         <StoreAssistant />
       </body>
     </html>

app/not-found.tsx

@@ -5,7 +5,7 @@ import Link from 'next/link';
 
 export default function NotFound() {
   return (
-    <div className="flex items-center justify-center min-h-screen">
+    <div className="flex items-center justify-center min-h-[60vh]">
       <div className="flex items-center gap-6">
         <div className="text-lg font-medium text-black font-sans whitespace-nowrap">
           404

app/page.tsx

@@ -1,26 +1,19 @@
-import Header from '@/components/shopify/header';
+import type { Metadata } from 'next';
-import Footer from '@/components/shopify/footer';
 import Products from '@/components/shopify/products';
+import { site } from '@/config/site';
+
+// The home page keeps the bare store name, so `title.absolute` opts out of the
+// root template rather than rendering "Shop — Shop".
+export const metadata: Metadata = {
+  title: { absolute: site.storeName },
+  description: site.description,
+};
 
 export default function Page() {
   return (
-    <>
+    <Products
-      <Header
+      title="Shopify Hydrogen Storefront"
-        storeName="Shop"
+      subtitle="An agent-friendly Shopify storefront built with Next.js and Hydrogen."
-        logoUrl=""
+    />
-        links={[
-          { label: 'Products', url: '/' },
-          { label: 'Collections', url: '/collections' },
-        ]}
-      />
-      <Products
-        title="Shopify Hydrogen Storefront"
-        subtitle="An agent-friendly Shopify storefront built with Next.js and Hydrogen."
-      />
-      <Footer
-        storeName="Shop"
-        copyright="© 2026 Shop. All rights reserved."
-      />
-    </>
   );
 }

app/policies/[handle]/page.tsx

@@ -1,7 +1,6 @@
 import { notFound } from 'next/navigation';
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import { getShopPolicy, POLICY_HANDLES } from '@/hooks/use-shopify-policies';
+import { site } from '@/config/site';
 
 export function generateStaticParams() {
   return POLICY_HANDLES.map((handle) => ({ handle }));
@@ -15,8 +14,12 @@ export async function generateMetadata({
   const { handle } = await params;
   const policy = await getShopPolicy(handle);
 
+  if (!policy) return { title: 'Policy' };
+
   return {
-    title: policy ? `${policy.title} — Shop` : 'Policy — Shop',
+    title: policy.title,
+    description: `Read the ${policy.title.toLowerCase()} for ${site.storeName}.`,
+    alternates: { canonical: `/policies/${policy.handle}` },
   };
 }
 
@@ -33,33 +36,17 @@ export default async function PolicyPage({
   }
 
   return (
-    <>
+    <main className="max-w-screen-2xl mx-auto w-full px-5 lg:px-10 py-16">
-      <Header
+      <div className="max-w-2xl mx-auto">
-        storeName="Shop"
+        <h1 className="text-3xl md:text-4xl font-normal text-foreground">
-        logoUrl=""
+          {policy.title}
-        links={[
+        </h1>
-          { label: 'Products', url: '/' },
-          { label: 'Collections', url: '/collections' },
-        ]}
-      />
 
-      <main className="max-w-screen-2xl mx-auto w-full px-5 lg:px-10 py-16">
+        <div
-        <div className="max-w-2xl mx-auto">
+          className="policy-body mt-8 text-[15px] leading-7 text-foreground"
-          <h1 className="text-3xl md:text-4xl font-normal text-foreground">
+          dangerouslySetInnerHTML={{ __html: policy.body }}
-            {policy.title}
+        />
-          </h1>
+      </div>
-
+    </main>
-          <div
-            className="policy-body mt-8 text-[15px] leading-7 text-foreground"
-            dangerouslySetInnerHTML={{ __html: policy.body }}
-          />
-        </div>
-      </main>
-
-      <Footer
-        storeName="Shop"
-        copyright="© 2026 Shop. All rights reserved."
-      />
-    </>
   );
 }

app/products/[handle]/page.tsx

@@ -1,25 +1,53 @@
-import Header from '@/components/shopify/header';
+import type { Metadata } from 'next';
-import Footer from '@/components/shopify/footer';
 import ProductDetail from '@/components/shopify/product-detail';
 import ProductRecommendations from '@/components/shopify/product-recommendations';
+import { getProduct } from '@/services/shopify/catalog';
+import { truncate } from '@/lib/utils';
+import { site } from '@/config/site';
+
+export async function generateMetadata({
+  params,
+}: {
+  params: Promise<{ handle: string }>;
+}): Promise<Metadata> {
+  const { handle } = await params;
+
+  // ProductDetail fetches client-side and renders its own empty state, so a
+  // failed lookup here falls back to generic tags rather than a 500.
+  const product = await getProduct(handle).catch(() => null);
+  if (!product) return { title: 'Product' };
+
+  const description = product.description
+    ? truncate(product.description, 160)
+    : site.description;
+  const image = product.images.edges[0]?.node;
+
+  return {
+    title: product.title,
+    description,
+    alternates: { canonical: `/products/${product.handle}` },
+    openGraph: {
+      title: product.title,
+      description,
+      url: `/products/${product.handle}`,
+      images: image
+        ? [{ url: image.url, alt: image.altText ?? product.title }]
+        : undefined,
+    },
+    twitter: {
+      card: 'summary_large_image',
+      title: product.title,
+      description,
+      images: image ? [image.url] : undefined,
+    },
+  };
+}
 
 export default function Page() {
   return (
     <>
-      <Header
-        storeName="Shop"
-        logoUrl=""
-        links={[
-          { label: 'Products', url: '/' },
-          { label: 'Collections', url: '/collections' },
-        ]}
-      />
       <ProductDetail addToCartLabel="Add to Cart" />
       <ProductRecommendations title="You May Also Like" />
-      <Footer
-        storeName="Shop"
-        copyright="© 2026 Shop. All rights reserved."
-      />
     </>
   );
 }

app/search/page.tsx

@@ -1,33 +1,16 @@
 import { Suspense } from 'react';
-import Header from '@/components/shopify/header';
-import Footer from '@/components/shopify/footer';
 import SearchResults from '@/components/shopify/search-results';
 
 export const metadata = {
-  title: 'Search — Shop',
+  title: 'Search',
+  description: 'Search the catalogue by product name, description or type.',
 };
 
 export default function Page() {
   return (
-    <>
+    // useSearchParams needs a Suspense boundary to prerender this route.
-      <Header
+    <Suspense fallback={<div className="py-10" />}>
-        storeName="Shop"
+      <SearchResults />
-        logoUrl=""
+    </Suspense>
-        links={[
-          { label: 'Products', url: '/' },
-          { label: 'Collections', url: '/collections' },
-        ]}
-      />
-
-      {/* useSearchParams needs a Suspense boundary to prerender this route. */}
-      <Suspense fallback={<div className="py-10" />}>
-        <SearchResults />
-      </Suspense>
-
-      <Footer
-        storeName="Shop"
-        copyright="© 2026 Shop. All rights reserved."
-      />
-    </>
   );
 }

app/shop/collections/page.tsx

@@ -1,23 +1,13 @@
-import Header from '@/components/shopify/header';
+import type { Metadata } from 'next';
-import Footer from '@/components/shopify/footer';
 import Collections from '@/components/shopify/collections';
 
+export const metadata: Metadata = {
+  title: 'Collections',
+  description: 'Browse every collection in the store.',
+  // Same listing as /collections; point crawlers at the canonical route.
+  alternates: { canonical: '/collections' },
+};
+
 export default function Page() {
-  return (
+  return <Collections title="Our Collections" />;
-    <>
-      <Header
-        storeName="Shop"
-        logoUrl=""
-        links={[
-          { label: 'Products', url: '/' },
-          { label: 'Collections', url: '/shop/collections' },
-        ]}
-      />
-      <Collections title="Our Collections" />
-      <Footer
-        storeName="Shop"
-        copyright="© 2026 Shop. All rights reserved."
-      />
-    </>
-  );
 }

components/shopify/cart-drawer.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import React, { useState } from 'react';
+import Image from 'next/image';
 import { useCartStore, redirectToCheckout } from '@/hooks/use-shopify-cart';
 import { Button } from '@/components/ui/button';
 import { Loader } from '@/components/ui/loader';
@@ -171,9 +172,11 @@ const CartDrawer: React.FC = () => {
                         {/* Product Image */}
                         <div className="w-16 h-16 bg-zinc-100 overflow-hidden shrink-0">
                           {image ? (
-                            <img
+                            <Image
                               src={image}
                               alt={item.merchandise.product.title}
+                              width={64}
+                              height={64}
                               className="w-full h-full object-cover"
                             />
                           ) : (

components/shopify/collection-card.tsx

@@ -1,9 +1,10 @@
 import React from 'react';
 import Link from 'next/link';
+import Image from 'next/image';
 
 interface CollectionImage {
   url: string;
-  altText?: string;
+  altText?: string | null;
 }
 
 interface Collection {
@@ -11,7 +12,7 @@ interface Collection {
   title: string;
   handle: string;
   description?: string;
-  image?: CollectionImage;
+  image?: CollectionImage | null;
 }
 
 interface CollectionCardProps {
@@ -27,10 +28,12 @@ const CollectionCard: React.FC<CollectionCardProps> = ({ collection }) => {
       {/* Collection Image */}
       <div className="relative aspect-square overflow-hidden">
         {collection.image ? (
-          <img
+          <Image
             src={collection.image.url}
             alt={collection.image.altText || collection.title}
-            className="w-full h-full object-cover transition-transform duration-500 group-hover:scale-[1.04]"
+            fill
+            sizes="(min-width: 1024px) 25vw, 50vw"
+            className="object-cover transition-transform duration-500 group-hover:scale-[1.04]"
           />
         ) : (
           <div className="absolute inset-0 flex items-center justify-center text-zinc-300">

components/shopify/header.tsx

@@ -6,6 +6,7 @@ import { useCartStore } from '@/hooks/use-shopify-cart';
 import CartDrawer from '@/components/shopify/cart-drawer';
 import SearchDialog from '@/components/shopify/search-dialog';
 import AccountMenu from '@/components/shopify/account-menu';
+import ShopMenu from '@/components/shopify/shop-menu';
 import { RiShoppingBagLine, RiCloseLine, RiMenu3Line } from '@remixicon/react';
 import { Button } from '@/components/ui/button';
 import Logo from '@/components/logo';
@@ -49,7 +50,7 @@ interface HeaderProps {
 }
 
 const Header: React.FC<HeaderProps> = ({
-  storeName = 'Shop',
+  storeName = 'Logo',
   logoUrl,
   links = [
     { label: 'Shop', url: '/' },
@@ -88,6 +89,7 @@ const Header: React.FC<HeaderProps> = ({
 
           {/* Desktop Navigation */}
           <div className="hidden md:flex items-center gap-x-8 text-sm">
+            <ShopMenu />
             {links.map((link, index) => (
               <Link
                 key={index}
@@ -127,6 +129,7 @@ const Header: React.FC<HeaderProps> = ({
       {menuOpen && (
         <div className="md:hidden bg-background">
           <div className="max-w-screen-2xl mx-auto px-8 pb-6 flex flex-col gap-y-4 text-sm">
+            <ShopMenu mobile onNavigate={() => setMenuOpen(false)} />
             {links.map((link, index) => (
               <Link
                 key={index}

components/shopify/order-history.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import React, { useState } from 'react';
+import Image from 'next/image';
 import { RiImageLine } from '@remixicon/react';
 import type { Customer, CustomerOrder } from '@/services/shopify/customer';
 
@@ -123,9 +124,11 @@ const OrderHistory: React.FC<OrderHistoryProps> = ({ customer }) => {
                 <li key={index} className="flex items-start gap-x-3">
                   <div className="h-16 w-16 shrink-0 overflow-hidden bg-zinc-100">
                     {node.variant?.image ? (
-                      <img
+                      <Image
                         src={node.variant.image.url}
                         alt={node.variant.image.altText || node.title}
+                        width={64}
+                        height={64}
                         className="h-full w-full object-cover"
                       />
                     ) : (

components/shopify/product-card.tsx

@@ -1,10 +1,11 @@
 import React from 'react';
 import Link from 'next/link';
+import Image from 'next/image';
 import { truncate } from '@/lib/utils';
 
 interface ProductImage {
   url: string;
-  altText?: string;
+  altText?: string | null;
 }
 
 interface ProductPrice {
@@ -68,10 +69,12 @@ const ProductCard: React.FC<ProductCardProps> = ({ product }) => {
       {/* Product Image */}
       <div className="relative aspect-square overflow-hidden">
         {firstImage ? (
-          <img
+          <Image
             src={firstImage.url}
             alt={firstImage.altText || product.title}
-            className="w-full h-full object-contain transition-transform duration-500 group-hover:scale-[1.04]"
+            fill
+            sizes="(min-width: 1280px) 20vw, (min-width: 1024px) 25vw, (min-width: 640px) 33vw, 50vw"
+            className="object-contain transition-transform duration-500 group-hover:scale-[1.04]"
           />
         ) : (
           <div className="absolute inset-0 flex items-center justify-center text-zinc-300">

components/shopify/product-detail/index.tsx

@@ -29,8 +29,8 @@ interface ProductVariant {
   }>;
   image?: {
     url: string;
-    altText?: string;
+    altText?: string | null;
-  };
+  } | null;
 }
 
 export type { Product };

components/shopify/product-detail/product-detail-gallery.tsx

@@ -1,12 +1,15 @@
 'use client';
 
 import React, { useCallback, useEffect, useRef, useState } from 'react';
+import Image from 'next/image';
 import { RiCloseLine } from '@remixicon/react';
 import { Button } from '@/components/ui/button';
 
 interface ProductImage {
   url: string;
-  altText?: string;
+  altText?: string | null;
+  width?: number | null;
+  height?: number | null;
 }
 
 interface ProductDetailGalleryProps {
@@ -136,11 +139,14 @@ const ProductDetailGallery: React.FC<ProductDetailGalleryProps> = ({
               isSingle ? 'sm:col-span-2' : ''
             }`}
           >
-            <img
+            <Image
               src={image.url}
               alt={image.altText || 'Product image'}
+              fill
+              sizes="(min-width: 1024px) 30vw, (min-width: 640px) 50vw, 100vw"
+              priority={index === 0}
               draggable={false}
-              className="w-full h-full object-cover select-none"
+              className="object-cover select-none"
             />
           </button>
         ))}
@@ -173,11 +179,19 @@ const ProductDetailGallery: React.FC<ProductDetailGalleryProps> = ({
           onClick={close}
           className="fixed inset-0 z-100 flex items-center justify-center bg-foreground/20 backdrop-blur-md p-6 md:p-10"
         >
-          <img
+          <Image
             src={zoomedImage.url}
             alt={zoomedImage.altText || 'Product image'}
+            // Shopify gives us the intrinsic size; the square fallback only
+            // reserves space until CSS scales it down to fit the overlay.
+            width={zoomedImage.width || 1600}
+            height={zoomedImage.height || 1600}
+            sizes="100vw"
             onClick={(event) => event.stopPropagation()}
-            className="max-h-full max-w-full object-contain"
+            // w/h-auto keeps the box at the image's own ratio; without it the
+            // width+height attributes make both axes definite and the element
+            // stretches to the overlay, swallowing backdrop clicks that close it.
+            className="max-h-full max-w-full w-auto h-auto object-contain"
           />
 
           <Button

components/shopify/product-detail/product-detail-info.tsx

@@ -172,12 +172,22 @@ const ProductDetailInfo: React.FC<ProductDetailInfoProps> = ({
                           : 'ring-1 ring-border hover:ring-foreground/40'
                       } ${isSoldOut ? 'option-unavailable text-foreground/60 opacity-60' : ''}`}
                       style={{
-                        backgroundColor: background,
+                        // With no colour and no image the circle would be fully
+                        // transparent, leaving just a hairline ring that
+                        // antialiases unevenly and reads as a speckled border.
+                        // A neutral fill makes the initial-letter fallback look
+                        // deliberate. Set inline so it beats the ghost variant's
+                        // hover background.
+                        backgroundColor:
+                          background ??
+                          (image ? undefined : 'var(--color-muted)'),
                         backgroundImage: image ? `url(${image})` : undefined,
                       }}
                     >
                       {!background && !image && (
-                        <span className="text-[10px]">{value.name.at(0)}</span>
+                        <span className="text-[10px] font-medium uppercase text-muted-foreground">
+                          {value.name.at(0)}
+                        </span>
                       )}
                     </Button>
                   );

components/shopify/product-filters.tsx

@@ -208,10 +208,15 @@ const ProductFilters: React.FC<ProductFiltersProps> = ({
                                 ? 'ring-2 ring-foreground ring-offset-2'
                                 : 'ring-1 ring-border hover:ring-foreground/40'
                             }`}
-                            style={{ backgroundColor: color ?? undefined }}
+                            style={{
+                              // A colourless swatch would otherwise be a fully
+                              // transparent circle behind a hairline ring,
+                              // which antialiases into a speckled border.
+                              backgroundColor: color ?? 'var(--color-muted)',
+                            }}
                           >
                             {!color && (
-                              <span className="text-[10px]">
+                              <span className="text-[10px] font-medium uppercase text-muted-foreground">
                                 {value.label.at(0)}
                               </span>
                             )}

components/shopify/products.tsx

@@ -8,7 +8,7 @@ import { Loader } from '@/components/ui/loader';
 
 interface ProductImage {
   url: string;
-  altText?: string;
+  altText?: string | null;
 }
 
 interface ProductPrice {

components/shopify/search-dialog.tsx

@@ -1,6 +1,7 @@
 'use client';
 
 import React, { useEffect, useRef, useState } from 'react';
+import Image from 'next/image';
 import { useRouter } from 'next/navigation';
 import {
   CommandDialog,
@@ -162,9 +163,11 @@ const SearchDialog: React.FC = () => {
                     >
                       <div className="h-14 w-14 shrink-0 overflow-hidden bg-zinc-100">
                         {product.featuredImage ? (
-                          <img
+                          <Image
                             src={product.featuredImage.url}
                             alt={product.featuredImage.altText || product.title}
+                            width={56}
+                            height={56}
                             className="h-full w-full object-cover"
                           />
                         ) : (

components/shopify/shop-menu.tsx

@@ -0,0 +1,152 @@
+'use client';
+
+import React, { useEffect, useState } from 'react';
+import Link from 'next/link';
+import { RiArrowDownSLine } from '@remixicon/react';
+import { useCollectionsOnDemand } from '@/hooks/use-shopify-collections';
+import { cn } from '@/lib/utils';
+
+interface ShopMenuProps {
+  label?: string;
+  /** Renders inline inside the mobile menu instead of as a floating panel. */
+  mobile?: boolean;
+  /** Fires after a collection is picked, so the mobile menu can close itself. */
+  onNavigate?: () => void;
+}
+
+const ShopMenu: React.FC<ShopMenuProps> = ({
+  label = 'Shop',
+  mobile = false,
+  onNavigate,
+}) => {
+  const [open, setOpen] = useState(false);
+  const { collections, loading, error, load } = useCollectionsOnDemand();
+
+  // The collection list is only worth fetching once someone opens the menu.
+  const toggle = () => {
+    const next = !open;
+    setOpen(next);
+    if (next) load();
+  };
+
+  const close = () => {
+    setOpen(false);
+    onNavigate?.();
+  };
+
+  useEffect(() => {
+    if (!open) return;
+
+    const handleKeyDown = (event: KeyboardEvent) => {
+      if (event.key === 'Escape') setOpen(false);
+    };
+
+    window.addEventListener('keydown', handleKeyDown);
+    return () => window.removeEventListener('keydown', handleKeyDown);
+  }, [open]);
+
+  const itemClasses = cn(
+    'block text-sm text-foreground hover:bg-accent transition-colors',
+    mobile ? 'px-3 py-2' : 'px-4 py-2'
+  );
+
+  const body = (
+    <>
+      {loading &&
+        Array.from({ length: 5 }).map((_, index) => (
+          <div key={index} className={cn(itemClasses, 'py-2.5')}>
+            <div className="h-3 w-2/3 animate-pulse bg-muted" />
+          </div>
+        ))}
+
+      {error && (
+        <div className={cn(itemClasses, 'hover:bg-transparent')}>
+          <p className="text-muted-foreground">{error}</p>
+          <button
+            onClick={load}
+            className="mt-1 underline underline-offset-2 hover:text-muted-foreground"
+          >
+            Try again
+          </button>
+        </div>
+      )}
+
+      {!loading && !error && collections.length === 0 && (
+        <p className={cn(itemClasses, 'text-muted-foreground hover:bg-transparent')}>
+          No collections yet.
+        </p>
+      )}
+
+      {collections.map((collection) => (
+        <Link
+          key={collection.id}
+          href={`/collections/${collection.handle}`}
+          onClick={close}
+          className={itemClasses}
+        >
+          {collection.title}
+        </Link>
+      ))}
+
+      {collections.length > 0 && (
+        <>
+          <div className="my-1 h-px bg-border" />
+          <Link
+            href="/collections"
+            onClick={close}
+            className={cn(itemClasses, 'text-muted-foreground')}
+          >
+            View all collections
+          </Link>
+        </>
+      )}
+    </>
+  );
+
+  const trigger = (
+    <button
+      onClick={toggle}
+      aria-expanded={open}
+      className={cn(
+        'flex items-center gap-x-1 text-foreground hover:text-muted-foreground transition-colors',
+        mobile && 'w-full justify-between'
+      )}
+    >
+      <span>{label}</span>
+      <RiArrowDownSLine
+        className={cn('size-4 transition-transform', open && 'rotate-180')}
+      />
+    </button>
+  );
+
+  if (mobile) {
+    return (
+      <div>
+        {trigger}
+        {open && (
+          <div className="mt-2 flex flex-col border-l border-border pl-1">
+            {body}
+          </div>
+        )}
+      </div>
+    );
+  }
+
+  return (
+    <div className="relative">
+      {trigger}
+
+      {open && (
+        <>
+          {/* Catches the click that dismisses the panel. */}
+          <div className="fixed inset-0 z-40" onClick={() => setOpen(false)} />
+          <div className="absolute left-0 top-full z-50 mt-2 max-h-[70vh] w-64 overflow-y-auto rounded-md border border-border bg-background py-1 shadow-md">
+            {body}
+          </div>
+        </>
+      )}
+    </div>
+  );
+};
+
+export default ShopMenu;

components/shopify/shop-pay-button.tsx

@@ -1,7 +1,7 @@
 'use client';
 
 import React from 'react';
-import { SHOPIFY_STORE_DOMAIN } from '@/services/shopify/client';
+import { SHOPIFY_STORE_DOMAIN } from '@/services/shopify/config';
 import ShopPayLogo from '@/components/shopify/shop-pay-logo';
 import { Loader } from '@/components/ui/loader';
 import { Button } from '@/components/ui/button';

config/site.ts

@@ -0,0 +1,21 @@
+import type { NavLink } from '@/components/shopify/header';
+
+/** Chrome shared by every route — rendered once in the root layout. */
+export const site = {
+  storeName: 'Shop',
+  description:
+    'An agent-friendly Shopify storefront built with Next.js and Hydrogen.',
+  // Absolute origin behind `metadataBase`, so Open Graph images resolve to full
+  // URLs. Vercel injects VERCEL_PROJECT_PRODUCTION_URL on deployed builds.
+  url:
+    process.env.NEXT_PUBLIC_SITE_URL ??
+    (process.env.VERCEL_PROJECT_PRODUCTION_URL
+      ? `https://${process.env.VERCEL_PROJECT_PRODUCTION_URL}`
+      : 'http://localhost:3000'),
+  logoUrl: '',
+  copyright: '© 2026 Shop. All rights reserved.',
+  navLinks: [
+    { label: 'Products', url: '/' },
+    { label: 'Collections', url: '/collections' },
+  ] as NavLink[],
+};

graphql/cart.ts

@@ -1,5 +1,7 @@
+import { gql } from '@shopify/hydrogen';
+
 // Cart Fragment for consistent cart data
-const CartFragment = `
+const CartFragment = gql(`
   fragment CartFragment on Cart {
     id
     checkoutUrl
@@ -64,12 +66,13 @@ const CartFragment = `
       }
     }
   }
-`;
+`);
 
 // Create a new cart
-export const CREATE_CART_MUTATION = `
+export const CREATE_CART_MUTATION = gql(
-  ${CartFragment}
+  `
-  mutation CreateCart($lines: [CartLineInput!]) {
+  mutation CreateCart($lines: [CartLineInput!], $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     cartCreate(input: { lines: $lines }) {
       cart {
         ...CartFragment
@@ -80,12 +83,15 @@ export const CREATE_CART_MUTATION = `
       }
     }
   }
-`;
+`,
+  [CartFragment]
+);
 
 // Add lines to cart
-export const ADD_CART_LINES_MUTATION = `
+export const ADD_CART_LINES_MUTATION = gql(
-  ${CartFragment}
+  `
-  mutation AddCartLines($cartId: ID!, $lines: [CartLineInput!]!) {
+  mutation AddCartLines($cartId: ID!, $lines: [CartLineInput!]!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     cartLinesAdd(cartId: $cartId, lines: $lines) {
       cart {
         ...CartFragment
@@ -96,12 +102,15 @@ export const ADD_CART_LINES_MUTATION = `
       }
     }
   }
-`;
+`,
+  [CartFragment]
+);
 
 // Update cart lines
-export const UPDATE_CART_LINES_MUTATION = `
+export const UPDATE_CART_LINES_MUTATION = gql(
-  ${CartFragment}
+  `
-  mutation UpdateCartLines($cartId: ID!, $lines: [CartLineUpdateInput!]!) {
+  mutation UpdateCartLines($cartId: ID!, $lines: [CartLineUpdateInput!]!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     cartLinesUpdate(cartId: $cartId, lines: $lines) {
       cart {
         ...CartFragment
@@ -112,12 +121,15 @@ export const UPDATE_CART_LINES_MUTATION = `
       }
     }
   }
-`;
+`,
+  [CartFragment]
+);
 
 // Remove lines from cart
-export const REMOVE_CART_LINES_MUTATION = `
+export const REMOVE_CART_LINES_MUTATION = gql(
-  ${CartFragment}
+  `
-  mutation RemoveCartLines($cartId: ID!, $lineIds: [ID!]!) {
+  mutation RemoveCartLines($cartId: ID!, $lineIds: [ID!]!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     cartLinesRemove(cartId: $cartId, lineIds: $lineIds) {
       cart {
         ...CartFragment
@@ -128,12 +140,15 @@ export const REMOVE_CART_LINES_MUTATION = `
       }
     }
   }
-`;
+`,
+  [CartFragment]
+);
 
 // Apply (or clear) discount codes on the cart
-export const UPDATE_CART_DISCOUNT_CODES_MUTATION = `
+export const UPDATE_CART_DISCOUNT_CODES_MUTATION = gql(
-  ${CartFragment}
+  `
-  mutation UpdateCartDiscountCodes($cartId: ID!, $discountCodes: [String!]) {
+  mutation UpdateCartDiscountCodes($cartId: ID!, $discountCodes: [String!]!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     cartDiscountCodesUpdate(cartId: $cartId, discountCodes: $discountCodes) {
       cart {
         ...CartFragment
@@ -144,14 +159,19 @@ export const UPDATE_CART_DISCOUNT_CODES_MUTATION = `
       }
     }
   }
-`;
+`,
+  [CartFragment]
+);
 
 // Get cart by ID
-export const GET_CART_QUERY = `
+export const GET_CART_QUERY = gql(
-  ${CartFragment}
+  `
-  query GetCart($cartId: ID!) {
+  query GetCart($cartId: ID!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     cart(id: $cartId) {
       ...CartFragment
     }
   }
-`;
+`,
+  [CartFragment]
+);

graphql/collections.ts

@@ -1,8 +1,10 @@
+import { gql } from '@shopify/hydrogen';
 import { ProductFragment } from '@/graphql/products';
 
 // Get all collections
-export const GET_COLLECTIONS_QUERY = `
+export const GET_COLLECTIONS_QUERY = gql(`
-  query GetCollections($first: Int!) {
+  query GetCollections($first: Int!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     collections(first: $first) {
       edges {
         node {
@@ -26,11 +28,11 @@ export const GET_COLLECTIONS_QUERY = `
       }
     }
   }
-`;
+`);
 
 // Get products in a collection
-export const GET_COLLECTION_PRODUCTS_QUERY = `
+export const GET_COLLECTION_PRODUCTS_QUERY = gql(
-  ${ProductFragment}
+  `
   query GetCollectionProducts(
     $handle: String!
     $first: Int!
@@ -38,7 +40,9 @@ export const GET_COLLECTION_PRODUCTS_QUERY = `
     $sortKey: ProductCollectionSortKeys
     $reverse: Boolean
     $filters: [ProductFilter!]
-  ) {
+    $country: CountryCode
+    $language: LanguageCode
+  ) @inContext(country: $country, language: $language) {
     collection(handle: $handle) {
       id
       title
@@ -82,4 +86,6 @@ export const GET_COLLECTION_PRODUCTS_QUERY = `
       }
     }
   }
-`;
+`,
+  [ProductFragment]
+);

graphql/customer.ts

@@ -1,7 +1,8 @@
 // Customer account operations (classic Storefront customer accounts).
 // https://shopify.dev/docs/api/storefront/latest/objects/Customer
+import { gql } from '@shopify/hydrogen';
 
-const CustomerFragment = `
+const CustomerFragment = gql(`
   fragment CustomerFragment on Customer {
     id
     email
@@ -24,10 +25,10 @@ const CustomerFragment = `
       phone
     }
   }
-`;
+`);
 
-export const CUSTOMER_QUERY = `
+export const CUSTOMER_QUERY = gql(
-  ${CustomerFragment}
+  `
   query GetCustomer($customerAccessToken: String!, $orderCount: Int!) {
     customer(customerAccessToken: $customerAccessToken) {
       ...CustomerFragment
@@ -63,9 +64,11 @@ export const CUSTOMER_QUERY = `
       }
     }
   }
-`;
+`,
+  [CustomerFragment]
+);
 
-export const CUSTOMER_CREATE_MUTATION = `
+export const CUSTOMER_CREATE_MUTATION = gql(`
   mutation CustomerCreate($input: CustomerCreateInput!) {
     customerCreate(input: $input) {
       customer {
@@ -79,9 +82,9 @@ export const CUSTOMER_CREATE_MUTATION = `
       }
     }
   }
-`;
+`);
 
-export const CUSTOMER_ACCESS_TOKEN_CREATE_MUTATION = `
+export const CUSTOMER_ACCESS_TOKEN_CREATE_MUTATION = gql(`
   mutation CustomerAccessTokenCreate($input: CustomerAccessTokenCreateInput!) {
     customerAccessTokenCreate(input: $input) {
       customerAccessToken {
@@ -95,9 +98,9 @@ export const CUSTOMER_ACCESS_TOKEN_CREATE_MUTATION = `
       }
     }
   }
-`;
+`);
 
-export const CUSTOMER_ACCESS_TOKEN_DELETE_MUTATION = `
+export const CUSTOMER_ACCESS_TOKEN_DELETE_MUTATION = gql(`
   mutation CustomerAccessTokenDelete($customerAccessToken: String!) {
     customerAccessTokenDelete(customerAccessToken: $customerAccessToken) {
       deletedAccessToken
@@ -107,10 +110,10 @@ export const CUSTOMER_ACCESS_TOKEN_DELETE_MUTATION = `
       }
     }
   }
-`;
+`);
 
 // Sends the "reset your password" email.
-export const CUSTOMER_RECOVER_MUTATION = `
+export const CUSTOMER_RECOVER_MUTATION = gql(`
   mutation CustomerRecover($email: String!) {
     customerRecover(email: $email) {
       customerUserErrors {
@@ -120,10 +123,10 @@ export const CUSTOMER_RECOVER_MUTATION = `
       }
     }
   }
-`;
+`);
 
 // Completes the reset using the id + token from the emailed link.
-export const CUSTOMER_RESET_MUTATION = `
+export const CUSTOMER_RESET_MUTATION = gql(`
   mutation CustomerReset($id: ID!, $input: CustomerResetInput!) {
     customerReset(id: $id, input: $input) {
       customerAccessToken {
@@ -137,10 +140,10 @@ export const CUSTOMER_RESET_MUTATION = `
       }
     }
   }
-`;
+`);
 
 // Activation link sent to customers created by the merchant.
-export const CUSTOMER_ACTIVATE_MUTATION = `
+export const CUSTOMER_ACTIVATE_MUTATION = gql(`
   mutation CustomerActivate($id: ID!, $input: CustomerActivateInput!) {
     customerActivate(id: $id, input: $input) {
       customerAccessToken {
@@ -154,10 +157,10 @@ export const CUSTOMER_ACTIVATE_MUTATION = `
       }
     }
   }
-`;
+`);
 
-export const CUSTOMER_UPDATE_MUTATION = `
+export const CUSTOMER_UPDATE_MUTATION = gql(
-  ${CustomerFragment}
+  `
   mutation CustomerUpdate($customerAccessToken: String!, $customer: CustomerUpdateInput!) {
     customerUpdate(customerAccessToken: $customerAccessToken, customer: $customer) {
       customer {
@@ -170,4 +173,6 @@ export const CUSTOMER_UPDATE_MUTATION = `
       }
     }
   }
-`;
+`,
+  [CustomerFragment]
+);

graphql/policies.ts

@@ -1,6 +1,8 @@
+import { gql } from '@shopify/hydrogen';
+
 // Shop policies are exposed on the `shop` object of the Storefront API.
 // There is no lookup-by-handle field, so we fetch all of them and match.
-export const GET_SHOP_POLICIES_QUERY = `
+export const GET_SHOP_POLICIES_QUERY = gql(`
   query GetShopPolicies {
     shop {
       privacyPolicy {
@@ -40,4 +42,4 @@ export const GET_SHOP_POLICIES_QUERY = `
       }
     }
   }
-`;
+`);

graphql/products.ts

@@ -1,5 +1,7 @@
+import { gql } from '@shopify/hydrogen';
+
 // Product Fragment for consistent product data
-export const ProductFragment = `
+export const ProductFragment = gql(`
   fragment ProductFragment on Product {
     id
     title
@@ -47,7 +49,6 @@ export const ProductFragment = `
           id
           title
           availableForSale
-          quantityAvailable
           selectedOptions {
             name
             value
@@ -98,12 +99,13 @@ export const ProductFragment = `
       }
     }
   }
-`;
+`);
 
 // Get multiple products
-export const GET_PRODUCTS_QUERY = `
+export const GET_PRODUCTS_QUERY = gql(
-  ${ProductFragment}
+  `
-  query GetProducts($first: Int!, $after: String, $query: String, $sortKey: ProductSortKeys, $reverse: Boolean) {
+  query GetProducts($first: Int!, $after: String, $query: String, $sortKey: ProductSortKeys, $reverse: Boolean, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     products(first: $first, after: $after, query: $query, sortKey: $sortKey, reverse: $reverse) {
       edges {
         node {
@@ -116,24 +118,32 @@ export const GET_PRODUCTS_QUERY = `
       }
     }
   }
-`;
+`,
+  [ProductFragment]
+);
 
 // Get a single product by handle
-export const GET_PRODUCT_QUERY = `
+export const GET_PRODUCT_QUERY = gql(
-  ${ProductFragment}
+  `
-  query GetProduct($handle: String!) {
+  query GetProduct($handle: String!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     product(handle: $handle) {
       ...ProductFragment
     }
   }
-`;
+`,
+  [ProductFragment]
+);
 
 // Get product recommendations
-export const QUERY_PRODUCT_RECOMMENDATIONS = `
+export const QUERY_PRODUCT_RECOMMENDATIONS = gql(
-  ${ProductFragment}
+  `
-  query GetProductRecommendations($productId: ID!) {
+  query GetProductRecommendations($productId: ID!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     productRecommendations(productId: $productId) {
       ...ProductFragment
     }
   }
-`;
+`,
+  [ProductFragment]
+);

graphql/search.ts

@@ -1,10 +1,11 @@
+import { gql } from '@shopify/hydrogen';
 import { ProductFragment } from '@/graphql/products';
 
 // Storefront search over products. `productFilters` accepts the raw `input`
 // values returned in `productFilters[].values[].input`, so facets round-trip
 // without the client needing to know each filter's shape.
-export const SEARCH_PRODUCTS_QUERY = `
+export const SEARCH_PRODUCTS_QUERY = gql(
-  ${ProductFragment}
+  `
   query SearchProducts(
     $query: String!
     $first: Int!
@@ -12,7 +13,9 @@ export const SEARCH_PRODUCTS_QUERY = `
     $sortKey: SearchSortKeys
     $reverse: Boolean
     $productFilters: [ProductFilter!]
-  ) {
+    $country: CountryCode
+    $language: LanguageCode
+  ) @inContext(country: $country, language: $language) {
     search(
       query: $query
       first: $first
@@ -40,6 +43,9 @@ export const SEARCH_PRODUCTS_QUERY = `
       }
       edges {
         node {
+          # types: PRODUCT already narrows the results, but the schema still
+          # types nodes as a union — __typename lets callers narrow too.
+          __typename
           ... on Product {
             ...ProductFragment
           }
@@ -47,16 +53,20 @@ export const SEARCH_PRODUCTS_QUERY = `
       }
     }
   }
-`;
+`,
+  [ProductFragment]
+);
 
 // Lightweight variant for the autocomplete dropdown — just enough to render a
 // row, so the dialog stays responsive while typing.
-export const SEARCH_SUGGESTIONS_QUERY = `
+export const SEARCH_SUGGESTIONS_QUERY = gql(`
-  query SearchSuggestions($query: String!, $first: Int!) {
+  query SearchSuggestions($query: String!, $first: Int!, $country: CountryCode, $language: LanguageCode)
+  @inContext(country: $country, language: $language) {
     search(query: $query, first: $first, types: PRODUCT) {
       totalCount
       edges {
         node {
+          __typename
           ... on Product {
             id
             title
@@ -76,4 +86,4 @@ export const SEARCH_SUGGESTIONS_QUERY = `
       }
     }
   }
-`;
+`);

hooks/use-shopify-cart.ts

@@ -1,7 +1,7 @@
 'use client';
 
 import { create } from 'zustand';
-import { shopifyFetch } from '@/services/shopify/client';
+import { storefront, unwrapStorefrontResult } from '@/services/shopify/client';
 import {
   CREATE_CART_MUTATION,
   ADD_CART_LINES_MUTATION,
@@ -45,12 +45,12 @@ interface CartLine {
       currencyCode: string;
     };
     image?: {
-      id: string;
+      id?: string | null;
       url: string;
-      altText?: string;
+      altText?: string | null;
-      width: number;
+      width?: number | null;
-      height: number;
+      height?: number | null;
-    };
+    } | null;
     product: {
       id: string;
       title: string;
@@ -82,7 +82,7 @@ export interface Cart {
     totalTaxAmount?: {
       amount: string;
       currencyCode: string;
-    };
+    } | null;
   };
   lines: {
     edges: Array<{
@@ -93,92 +93,105 @@ export interface Cart {
 
 // ─── Shopify API functions ───────────────────────────────────────────
 
-async function createCartApi(lines: CartLineInput[] = []): Promise<Cart> {
+/**
-  const response = await shopifyFetch({
+ * Every cart mutation returns the same `{ cart, userErrors }` payload, and both
-    query: CREATE_CART_MUTATION,
+ * the payload and the cart inside it are nullable — Shopify returns no cart when
-    variables: { lines: lines.length > 0 ? lines : null },
+ * the mutation could not be applied. Callers want a cart or an exception.
-  });
+ */
-
+function unwrapCartPayload<T>(
-  if (response.data.cartCreate.userErrors.length > 0) {
+  payload:
-    throw new Error(response.data.cartCreate.userErrors[0].message);
+    | {
+        cart?: T | null;
+        userErrors: ReadonlyArray<{ message: string }>;
+      }
+    | null
+    | undefined
+): T {
+  if (payload?.userErrors.length) {
+    throw new Error(payload.userErrors[0].message);
   }
 
-  return response.data.cartCreate.cart;
+  if (!payload?.cart) {
+    throw new Error('Cart update failed. Please try again.');
+  }
+
+  return payload.cart;
+}
+
+async function createCartApi(lines: CartLineInput[] = []): Promise<Cart> {
+  const data = unwrapStorefrontResult(
+    await storefront.graphql(CREATE_CART_MUTATION, {
+      variables: { lines: lines.length > 0 ? lines : null },
+    }),
+    'CreateCart'
+  );
+
+  return unwrapCartPayload(data.cartCreate);
 }
 
 async function addCartLinesApi(
   cartId: string,
   lines: CartLineInput[]
 ): Promise<Cart> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: ADD_CART_LINES_MUTATION,
+    await storefront.graphql(ADD_CART_LINES_MUTATION, {
-    variables: { cartId, lines },
+      variables: { cartId, lines },
-  });
+    }),
+    'AddCartLines'
+  );
 
-  if (response.data.cartLinesAdd.userErrors.length > 0) {
+  return unwrapCartPayload(data.cartLinesAdd);
-    throw new Error(response.data.cartLinesAdd.userErrors[0].message);
-  }
-
-  return response.data.cartLinesAdd.cart;
 }
 
 async function updateCartLinesApi(
   cartId: string,
   lines: CartLineUpdateInput[]
 ): Promise<Cart> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: UPDATE_CART_LINES_MUTATION,
+    await storefront.graphql(UPDATE_CART_LINES_MUTATION, {
-    variables: { cartId, lines },
+      variables: { cartId, lines },
-  });
+    }),
+    'UpdateCartLines'
+  );
 
-  if (response.data.cartLinesUpdate.userErrors.length > 0) {
+  return unwrapCartPayload(data.cartLinesUpdate);
-    throw new Error(response.data.cartLinesUpdate.userErrors[0].message);
-  }
-
-  return response.data.cartLinesUpdate.cart;
 }
 
 async function removeCartLinesApi(
   cartId: string,
   lineIds: string[]
 ): Promise<Cart> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: REMOVE_CART_LINES_MUTATION,
+    await storefront.graphql(REMOVE_CART_LINES_MUTATION, {
-    variables: { cartId, lineIds },
+      variables: { cartId, lineIds },
-  });
+    }),
+    'RemoveCartLines'
+  );
 
-  if (response.data.cartLinesRemove.userErrors.length > 0) {
+  return unwrapCartPayload(data.cartLinesRemove);
-    throw new Error(response.data.cartLinesRemove.userErrors[0].message);
-  }
-
-  return response.data.cartLinesRemove.cart;
 }
 
 async function updateCartDiscountCodesApi(
   cartId: string,
   discountCodes: string[]
 ): Promise<Cart> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: UPDATE_CART_DISCOUNT_CODES_MUTATION,
+    await storefront.graphql(UPDATE_CART_DISCOUNT_CODES_MUTATION, {
-    variables: { cartId, discountCodes },
+      variables: { cartId, discountCodes },
-  });
+    }),
+    'UpdateCartDiscountCodes'
+  );
 
-  if (response.data.cartDiscountCodesUpdate.userErrors.length > 0) {
+  return unwrapCartPayload(data.cartDiscountCodesUpdate);
-    throw new Error(
-      response.data.cartDiscountCodesUpdate.userErrors[0].message
-    );
-  }
-
-  return response.data.cartDiscountCodesUpdate.cart;
 }
 
 async function getCartApi(cartId: string): Promise<Cart | null> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: GET_CART_QUERY,
+    await storefront.graphql(GET_CART_QUERY, { variables: { cartId } }),
-    variables: { cartId },
+    'GetCart'
-  });
+  );
 
-  return response.data.cart;
+  return data.cart;
 }
 
 export function redirectToCheckout(checkoutUrl: string): void {

hooks/use-shopify-collections.ts

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useEffect, useCallback } from 'react';
+import { useState, useEffect, useCallback, useRef } from 'react';
 import {
   getCollections,
   getCollectionProducts,
@@ -60,6 +60,36 @@ export function useCollections(first = 50) {
   return { collections, loading, error, refetch: fetchCollections };
 }
 
+// Deferred variant of useCollections: nothing is requested until `load` runs,
+// so a menu can hold off until it's actually opened. The fetch happens once —
+// re-opening reuses what's already in state.
+export function useCollectionsOnDemand(first = 50) {
+  const [collections, setCollections] = useState<Collection[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const requested = useRef(false);
+
+  const load = useCallback(async () => {
+    if (requested.current) return;
+    requested.current = true;
+
+    try {
+      setLoading(true);
+      setError(null);
+      setCollections(await getCollections(first));
+    } catch (err) {
+      console.error('Error fetching collections:', err);
+      // Let the next open (or a retry) try again.
+      requested.current = false;
+      setError(err instanceof Error ? err.message : 'Failed to load collections');
+    } finally {
+      setLoading(false);
+    }
+  }, [first]);
+
+  return { collections, loading, error, load };
+}
+
 // Hook for fetching products in a collection
 export function useCollectionProducts(
   handle: string | null,

hooks/use-shopify-policies.ts

@@ -1,4 +1,7 @@
-import { SHOPIFY_STOREFRONT_API_URL } from '@/services/shopify/client';
+import {
+  cachedStorefront,
+  unwrapStorefrontResult,
+} from '@/services/shopify/client';
 import { GET_SHOP_POLICIES_QUERY } from '@/graphql/policies';
 
 export interface ShopPolicy {
@@ -9,12 +12,6 @@ export interface ShopPolicy {
   url: string;
 }
 
-interface ShopPoliciesResponse {
-  data?: {
-    shop?: Record<string, ShopPolicy | null>;
-  };
-}
-
 // Handles Shopify uses for each policy — also the routes under /policies/[handle].
 export const POLICY_HANDLES = [
   'terms-of-service',
@@ -24,32 +21,23 @@ export const POLICY_HANDLES = [
   'subscription-policy',
 ] as const;
 
-// Policies change rarely, so this uses its own fetch (revalidated hourly)
+// Policies change rarely, so this reads through the cached client (revalidated
-// rather than the no-store `shopifyFetch` used for carts and products.
+// hourly) rather than the no-store one used for carts and products.
 export async function getShopPolicies(): Promise<ShopPolicy[]> {
-  const token = process.env.NEXT_PUBLIC_SHOPIFY_STOREFRONT_ACCESS_TOKEN;
+  try {
+    const data = unwrapStorefrontResult(
+      await cachedStorefront.graphql(GET_SHOP_POLICIES_QUERY),
+      'GetShopPolicies'
+    );
 
-  const response = await fetch(SHOPIFY_STOREFRONT_API_URL, {
+    return Object.values(data.shop ?? {}).filter(
-    method: 'POST',
+      (policy): policy is ShopPolicy => Boolean(policy?.handle)
-    headers: {
+    );
-      'Content-Type': 'application/json',
+  } catch (err) {
-      ...(token ? { 'X-Shopify-Storefront-Access-Token': token } : {}),
+    // A storefront without policies configured shouldn't break the footer.
-    },
+    console.error('Failed to load shop policies:', err);
-    body: JSON.stringify({ query: GET_SHOP_POLICIES_QUERY }),
-    next: { revalidate: 3600 },
-  });
-
-  if (!response.ok) {
-    console.error('Failed to load shop policies:', response.status);
     return [];
   }
-
-  const json: ShopPoliciesResponse = await response.json();
-  const shop = json.data?.shop ?? {};
-
-  return Object.values(shop).filter((policy): policy is ShopPolicy =>
-    Boolean(policy?.handle)
-  );
 }
 
 export async function getShopPolicy(

next-env.d.ts

@@ -0,0 +1,6 @@
+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+import "./.next/dev/types/routes.d.ts";
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

next.config.js

@@ -4,21 +4,21 @@ export default {
     ignoreBuildErrors: true,
   },
   images: {
-    unoptimized: true,
     remotePatterns: [
-    {
+      {
-      protocol: 'https',
+        protocol: 'https',
-      hostname: 'images.unsplash.com',
+        hostname: 'images.unsplash.com',
-    },
+      },
-    {
+      // Covers cdn.shopify.com plus any other Shopify-hosted image subdomain.
-      protocol: 'https',
+      {
-      hostname: 'cdn.shopify.com',
+        protocol: 'https',
-    },
+        hostname: '**.shopify.com',
-    {
+      },
-      protocol: 'https',
+      {
-      hostname: '**.frontend.co',
+        protocol: 'https',
-    },
+        hostname: '**.frontend.co',
-  ], 
+      },
+    ],
   },
   experimental: { 
     reactDebugChannel: false 

package.json

@@ -5,17 +5,18 @@
     "scripts": {
         "dev": "next dev --webpack",
         "build": "next build --webpack",
-        "start": "next start"
+        "start": "next start",
+        "typecheck": "tsc --noEmit && hydrogen gql check"
     },
     "version": "0.0.0",
     "dependencies": {
         "@ai-sdk/react": "^4.0.47",
-        "@next/swc-wasm-web": "16.2.10",
+        "@next/swc-wasm-web": "16.3.6",
         "@openrouter/ai-sdk-provider": "^3.0.0",
         "@radix-ui/react-slot": "^1.3.3",
         "@radix-ui/react-use-controllable-state": "^1.2.6",
         "@remixicon/react": "^4.9.0",
-        "@shopify/storefront-api-client": "^1.0.0",
+        "@shopify/hydrogen": "0.0.0-preview-116d5d7-20260730141607",
         "ai": "^7",
         "class-variance-authority": "0.7.1",
         "clsx": "^2.1.1",
@@ -27,7 +28,7 @@
         "lucide-react": "^0.562.0",
         "motion": "^12.23.26",
         "nanoid": "^6.0.0",
-        "next": "16.2.10",
+        "next": "16.3.6",
         "radix-ui": "^1.6.7",
         "react": "^19.0.0",
         "react-dom": "^19.0.0",
@@ -52,5 +53,6 @@
         "@types/react": "^19",
         "@types/react-dom": "^19",
         "typescript": "^5.7.3"
-    }
+    },
+    "packageManager": "yarn@4.18.0+sha512.fcb8716fe7cd0eece141ffc18b92193a9df9204c1ba83189c288835223fc0bbe64af473bab0d5e9927a7daeb5caf2bb07eb2787cc9338ca040ea125f2a1f2f7e"
 }

services/shopify/catalog.ts

@@ -3,7 +3,8 @@
 // These are plain async functions with no React imports, so they can be called
 // from Route Handlers (see app/api/chat/route.ts) as well as from the client
 // hooks in hooks/use-shopify-*.ts, which re-export them.
-import { shopifyFetch } from '@/services/shopify/client';
+import type { StorefrontApi } from '@shopify/hydrogen';
+import { storefront, unwrapStorefrontResult } from '@/services/shopify/client';
 import {
   GET_PRODUCTS_QUERY,
   GET_PRODUCT_QUERY,
@@ -18,9 +19,11 @@ import {
   SEARCH_SUGGESTIONS_QUERY,
 } from '@/graphql/search';
 
+// Optional fields are `| null` rather than just optional: the Storefront API
+// returns explicit nulls, and the typed `gql()` documents now surface that.
 interface ProductImage {
   url: string;
-  altText?: string;
+  altText?: string | null;
 }
 
 interface ProductPrice {
@@ -37,7 +40,7 @@ interface ProductVariant {
     name: string;
     value: string;
   }>;
-  image?: ProductImage;
+  image?: ProductImage | null;
 }
 
 export interface ProductOptionValue {
@@ -146,12 +149,14 @@ export async function getProductsPage({
   sortKey = 'BEST_SELLING',
   reverse = false,
 }: UseProductsOptions = {}): Promise<ProductsPage> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: GET_PRODUCTS_QUERY,
+    await storefront.graphql(GET_PRODUCTS_QUERY, {
-    variables: { first, after, query, sortKey, reverse },
+      variables: { first, after, query, sortKey, reverse },
-  });
+    }),
+    'GetProducts'
+  );
 
-  const { edges, pageInfo } = response.data.products;
+  const { edges, pageInfo } = data.products;
 
   return {
     products: edges.map((edge: { node: Product }) => edge.node),
@@ -162,28 +167,30 @@ export async function getProductsPage({
 
 // Fetch a single product by handle
 export async function getProduct(handle: string): Promise<Product | null> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: GET_PRODUCT_QUERY,
+    await storefront.graphql(GET_PRODUCT_QUERY, { variables: { handle } }),
-    variables: { handle },
+    'GetProduct'
-  });
+  );
 
-  return response.data.product;
+  return data.product;
 }
 
 // Fetch product recommendations
 export async function getProductRecommendations(productId: string): Promise<Product[]> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: QUERY_PRODUCT_RECOMMENDATIONS,
+    await storefront.graphql(QUERY_PRODUCT_RECOMMENDATIONS, {
-    variables: { productId },
+      variables: { productId },
-  });
+    }),
+    'GetProductRecommendations'
+  );
 
-  return response.data.productRecommendations || [];
+  return data.productRecommendations ?? [];
 }
 
 
 interface CollectionImage {
   url: string;
-  altText?: string;
+  altText?: string | null;
 }
 
 export interface Collection {
@@ -192,7 +199,7 @@ export interface Collection {
   handle: string;
   description?: string;
   descriptionHtml?: string;
-  image?: CollectionImage;
+  image?: CollectionImage | null;
 }
 
 export interface CollectionWithProducts extends Collection {
@@ -237,12 +244,12 @@ export interface ProductFilterFacet {
 
 // Fetch all collections
 export async function getCollections(first = 50): Promise<Collection[]> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: GET_COLLECTIONS_QUERY,
+    await storefront.graphql(GET_COLLECTIONS_QUERY, { variables: { first } }),
-    variables: { first },
+    'GetCollections'
-  });
+  );
 
-  return response.data.collections.edges.map((edge: { node: Collection }) => edge.node);
+  return data.collections.edges.map((edge) => edge.node);
 }
 
 // Fetch products in a collection by handle
@@ -267,28 +274,23 @@ export async function getCollectionProductsPage(
     filterInputs = [],
   }: UseCollectionProductsOptions = {}
 ): Promise<CollectionProductsPage> {
-  const filters = filterInputs.flatMap((input) => {
+  const filters = parseFilterInputs(filterInputs);
-    try {
-      return [JSON.parse(input)];
-    } catch {
-      console.warn('Ignoring malformed product filter input:', input);
-      return [];
-    }
-  });
 
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: GET_COLLECTION_PRODUCTS_QUERY,
+    await storefront.graphql(GET_COLLECTION_PRODUCTS_QUERY, {
-    variables: {
+      variables: {
-      handle,
+        handle,
-      first,
+        first,
-      after,
+        after,
-      sortKey,
+        sortKey,
-      reverse,
+        reverse,
-      filters: filters.length ? filters : null,
+        filters: filters.length ? filters : null,
-    },
+      },
-  });
+    }),
+    'GetCollectionProducts'
+  );
 
-  const collection = response.data.collection;
+  const collection = data.collection;
   if (!collection) {
     return {
       collection: null,
@@ -342,7 +344,7 @@ export interface SearchSuggestion {
   handle: string;
   featuredImage?: {
     url: string;
-    altText?: string;
+    altText?: string | null;
   } | null;
   priceRange: {
     minVariantPrice: {
@@ -362,10 +364,18 @@ interface SearchProductsOptions {
   filterInputs?: string[];
 }
 
-function parseFilterInputs(inputs: string[]): unknown[] {
+// The `ProductFilter` input shape, taken from the query that consumes it so it
+// tracks the schema rather than being restated here.
+type ProductFilterInput = NonNullable<
+  StorefrontApi.VariablesOf<typeof GET_COLLECTION_PRODUCTS_QUERY>['filters']
+>[number];
+
+// Facet `input` values are opaque JSON strings produced by Shopify and handed
+// straight back as filter inputs, so they are parsed, not constructed.
+function parseFilterInputs(inputs: string[]): ProductFilterInput[] {
   return inputs.flatMap((input) => {
     try {
-      return [JSON.parse(input)];
+      return [JSON.parse(input) as ProductFilterInput];
     } catch {
       console.warn('Ignoring malformed product filter input:', input);
       return [];
@@ -381,24 +391,30 @@ export async function searchProducts({
   reverse = false,
   filterInputs = [],
 }: SearchProductsOptions): Promise<SearchProductsResult> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: SEARCH_PRODUCTS_QUERY,
+    await storefront.graphql(SEARCH_PRODUCTS_QUERY, {
-    variables: {
+      variables: {
-      query,
+        query,
-      first,
+        first,
-      after,
+        after,
-      sortKey,
+        sortKey,
-      reverse,
+        reverse,
-      productFilters: filterInputs.length
+        productFilters: filterInputs.length
-        ? parseFilterInputs(filterInputs)
+          ? parseFilterInputs(filterInputs)
-        : null,
+          : null,
-    },
+      },
-  });
+    }),
+    'SearchProducts'
+  );
 
-  const search = response.data.search;
+  const search = data.search;
 
   return {
-    products: search.edges.map((edge: { node: Product }) => edge.node),
+    products: search.edges
+      .map((edge) => edge.node)
+      .filter((node): node is Extract<typeof node, { __typename: 'Product' }> =>
+        node.__typename === 'Product'
+      ),
     totalCount: search.totalCount ?? 0,
     filters: search.productFilters ?? [],
     hasNextPage: Boolean(search.pageInfo?.hasNextPage),
@@ -410,15 +426,21 @@ export async function searchSuggestions(
   query: string,
   first = 3
 ): Promise<{ products: SearchSuggestion[]; totalCount: number }> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: SEARCH_SUGGESTIONS_QUERY,
+    await storefront.graphql(SEARCH_SUGGESTIONS_QUERY, {
-    variables: { query, first },
+      variables: { query, first },
-  });
+    }),
+    'SearchSuggestions'
+  );
 
-  const search = response.data.search;
+  const search = data.search;
 
   return {
-    products: search.edges.map((edge: { node: SearchSuggestion }) => edge.node),
+    products: search.edges
+      .map((edge) => edge.node)
+      .filter((node): node is Extract<typeof node, { __typename: 'Product' }> =>
+        node.__typename === 'Product'
+      ),
     totalCount: search.totalCount ?? 0,
   };
 }

services/shopify/client.js

@@ -1,48 +0,0 @@
-// Shopify Storefront API Service
-const SHOPIFY_STORE_DOMAIN = process.env.NEXT_PUBLIC_SHOPIFY_DOMAIN;
-const SHOPIFY_STOREFRONT_ACCESS_TOKEN = process.env.NEXT_PUBLIC_SHOPIFY_STOREFRONT_ACCESS_TOKEN;
-const SHOPIFY_API_VERSION = process.env.NEXT_PUBLIC_SHOPIFY_API_VERSION || '2025-07';
-const SHOPIFY_STOREFRONT_API_URL = `https://${SHOPIFY_STORE_DOMAIN}/api/${SHOPIFY_API_VERSION}/graphql.json`;
-
-// Shopify API request with optional access token
-async function shopifyFetch({ query, variables = {} }) {
-  try {
-    const headers = {
-      'Content-Type': 'application/json',
-    };
-
-    // Add access token if available
-    if (SHOPIFY_STOREFRONT_ACCESS_TOKEN) {
-      headers['X-Shopify-Storefront-Access-Token'] = SHOPIFY_STOREFRONT_ACCESS_TOKEN;
-    }
-
-    const response = await fetch(SHOPIFY_STOREFRONT_API_URL, {
-      method: 'POST',
-      headers,
-      body: JSON.stringify({
-        query,
-        variables,
-      }),
-      cache: 'no-store', // Ensure fresh data for cart operations
-    });
-
-    if (!response.ok) {
-      const errorBody = await response.text();
-      throw new Error(`Shopify API HTTP error! Status: ${response.status}, Body: ${errorBody}`);
-    }
-
-    const json = await response.json();
-
-    if (json.errors) {
-      console.error('Shopify API errors:', json.errors);
-      throw new Error(`Shopify GraphQL errors: ${JSON.stringify(json.errors)}`);
-    }
-
-    return json;
-  } catch (error) {
-    console.error('Shopify fetch error:', error);
-    throw error;
-  }
-}
-
-export { shopifyFetch, SHOPIFY_STORE_DOMAIN, SHOPIFY_STOREFRONT_API_URL };

services/shopify/client.ts

@@ -0,0 +1,105 @@
+// Storefront API clients, built on `@shopify/hydrogen`.
+//
+// Call sites use the package's own API — `storefront.graphql(DOCUMENT, {
+// variables })` — and pass the result through `unwrapStorefrontResult`, which
+// applies this app's error policy: fail loudly. Hydrogen deliberately does not
+// do that itself, because a 200 carrying partial data and GraphQL errors is a
+// valid response that some callers want to render.
+import {
+  createShopifyRequestContext,
+  createStorefrontClient,
+  type GraphQLFormattedError,
+} from '@shopify/hydrogen';
+import {
+  SHOPIFY_API_VERSION,
+  SHOPIFY_PUBLIC_ACCESS_TOKEN,
+  SHOPIFY_STORE_DOMAIN,
+} from '@/services/shopify/config';
+
+// No incoming request and no buyer context: these clients are module-scoped and
+// serve both server rendering and the browser-side hooks, so they must not close
+// over per-request state. `$country`/`$language` are injected from this i18n.
+const requestContext = createShopifyRequestContext({
+  request: { headers: new Headers() },
+  i18n: { country: 'US', language: 'EN' },
+});
+
+/**
+ * Workaround for a bug in this preview build of `@shopify/hydrogen`.
+ *
+ * The client tags every request with `X-Hydrogen-Version`, but the Storefront
+ * API does not list that header in its CORS `access-control-allow-headers`.
+ * Browsers therefore reject the preflight and `fetch` throws, which hydrogen
+ * reports as the generic "SFAPI request failed". It only bites against real
+ * stores — `mock.shop` answers `access-control-allow-headers: *`.
+ *
+ * Stripped in the browser only: server-side requests are not subject to CORS,
+ * so they keep sending the header. Remove this once the API allows it (or once
+ * these queries move server-side, which is the better long-term fix).
+ */
+const CORS_BLOCKED_HEADERS = ['X-Hydrogen-Version'];
+
+// Hydrogen calls `fetch(url, init, cacheOptions)`; Next's caching hints ride
+// along on `init`, which is how the two ways of caching get to coexist.
+const fetchWith = (overrides: RequestInit): typeof globalThis.fetch =>
+  ((url, init) => {
+    const headers = new Headers(init?.headers);
+
+    if (typeof document !== 'undefined') {
+      for (const header of CORS_BLOCKED_HEADERS) headers.delete(header);
+    }
+
+    return globalThis.fetch(url, { ...init, ...overrides, headers });
+  }) as typeof globalThis.fetch;
+
+const config = {
+  storeDomain: SHOPIFY_STORE_DOMAIN!,
+  apiVersion: SHOPIFY_API_VERSION,
+  publicStorefrontToken: SHOPIFY_PUBLIC_ACCESS_TOKEN,
+};
+
+/**
+ * Default client. Uncached, because carts and customer reads must never serve a
+ * stale response.
+ */
+export const storefront = createStorefrontClient({
+  type: 'public',
+  requestContext,
+  config: { ...config, fetch: fetchWith({ cache: 'no-store' }) },
+});
+
+/**
+ * Client for data that changes rarely (shop policies, and anything else safe to
+ * serve from Next's data cache for an hour).
+ */
+export const cachedStorefront = createStorefrontClient({
+  type: 'public',
+  requestContext,
+  config: { ...config, fetch: fetchWith({ next: { revalidate: 3600 } }) },
+});
+
+/**
+ * Returns the data from a `graphql()` result, throwing if Shopify reported any
+ * GraphQL errors. Transport failures — non-200, timeouts, unparseable bodies —
+ * have already thrown as `StorefrontApiError` by this point.
+ *
+ * `operation` names the query in the log and the thrown message, so a failure
+ * points at the call site rather than just at "Shopify".
+ */
+export function unwrapStorefrontResult<TData>(
+  result: { data: TData | null; errors?: GraphQLFormattedError[] },
+  operation: string
+): TData {
+  if (result.errors?.length) {
+    console.error(`Shopify GraphQL errors (${operation}):`, result.errors);
+    throw new Error(
+      `Shopify GraphQL errors (${operation}): ${JSON.stringify(result.errors)}`
+    );
+  }
+
+  if (result.data == null) {
+    throw new Error(`Shopify returned no data for ${operation}.`);
+  }
+
+  return result.data;
+}

services/shopify/config.ts

@@ -0,0 +1,16 @@
+// Storefront configuration, read from the environment in one place.
+//
+// These are all `NEXT_PUBLIC_*`, so Next inlines them at build time and they are
+// safe to read from client components as well as server code.
+export const SHOPIFY_STORE_DOMAIN = process.env.NEXT_PUBLIC_SHOPIFY_DOMAIN;
+
+/**
+ * Public Storefront API access token. Safe to expose to the browser — that is
+ * what "public" means here. Omitted for tokenless storefronts such as
+ * `mock.shop`. Never put a *private* token behind a `NEXT_PUBLIC_` name.
+ */
+export const SHOPIFY_PUBLIC_ACCESS_TOKEN =
+  process.env.NEXT_PUBLIC_SHOPIFY_PUBLIC_ACCESS_TOKEN;
+
+export const SHOPIFY_API_VERSION =
+  process.env.NEXT_PUBLIC_SHOPIFY_API_VERSION || '2026-07';

services/shopify/customer.ts

@@ -3,7 +3,7 @@
 // The customer access token is a credential: it is only ever handled here and
 // in the /api/account route handlers, and is stored in an httpOnly cookie so
 // client JavaScript can never read it.
-import { shopifyFetch } from '@/services/shopify/client';
+import { storefront, unwrapStorefrontResult } from '@/services/shopify/client';
 import {
   CUSTOMER_QUERY,
   CUSTOMER_CREATE_MUTATION,
@@ -18,7 +18,8 @@ import {
 export const CUSTOMER_TOKEN_COOKIE = 'customerAccessToken';
 
 export interface CustomerUserError {
-  code?: string;
+  /** One of `CustomerErrorCode`; kept as a string so new codes don't break. */
+  code?: string | null;
   field?: string[] | null;
   message: string;
 }
@@ -57,7 +58,7 @@ export interface CustomerOrder {
 
 export interface Customer {
   id: string;
-  email: string;
+  email: string | null;
   firstName?: string | null;
   lastName?: string | null;
   phone?: string | null;
@@ -84,6 +85,13 @@ const firstMessage = (errors: CustomerUserError[]) =>
 
 export { firstMessage as customerErrorMessage };
 
+// Shopify returns a null mutation payload when the mutation could not run at
+// all. That is not a success, so it surfaces as a generic error rather than an
+// empty error list, which callers read as "it worked".
+const MUTATION_FAILED: CustomerUserError[] = [
+  { message: 'Something went wrong. Please try again.' },
+];
+
 export async function createCustomer(input: {
   email: string;
   password: string;
@@ -91,24 +99,32 @@ export async function createCustomer(input: {
   lastName?: string;
   acceptsMarketing?: boolean;
 }): Promise<{ errors: CustomerUserError[] }> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: CUSTOMER_CREATE_MUTATION,
+    await storefront.graphql(CUSTOMER_CREATE_MUTATION, {
-    variables: { input },
+      variables: { input },
-  });
+    }),
+    'CustomerCreate'
+  );
 
-  return { errors: response.data.customerCreate.customerUserErrors ?? [] };
+  const result = data.customerCreate;
+  if (!result) return { errors: MUTATION_FAILED };
+
+  return { errors: result.customerUserErrors ?? [] };
 }
 
 export async function login(
   email: string,
   password: string
 ): Promise<AuthResult> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: CUSTOMER_ACCESS_TOKEN_CREATE_MUTATION,
+    await storefront.graphql(CUSTOMER_ACCESS_TOKEN_CREATE_MUTATION, {
-    variables: { input: { email, password } },
+      variables: { input: { email, password } },
-  });
+    }),
+    'CustomerAccessTokenCreate'
+  );
 
-  const result = response.data.customerAccessTokenCreate;
+  const result = data.customerAccessTokenCreate;
+  if (!result) return { token: null, errors: MUTATION_FAILED };
 
   return {
     token: result.customerAccessToken ?? null,
@@ -118,8 +134,7 @@ export async function login(
 
 export async function logout(accessToken: string): Promise<void> {
   try {
-    await shopifyFetch({
+    await storefront.graphql(CUSTOMER_ACCESS_TOKEN_DELETE_MUTATION, {
-      query: CUSTOMER_ACCESS_TOKEN_DELETE_MUTATION,
       variables: { customerAccessToken: accessToken },
     });
   } catch (err) {
@@ -132,8 +147,7 @@ export async function logout(accessToken: string): Promise<void> {
 // would leak account membership.
 export async function recoverPassword(email: string): Promise<void> {
   try {
-    await shopifyFetch({
+    await storefront.graphql(CUSTOMER_RECOVER_MUTATION, {
-      query: CUSTOMER_RECOVER_MUTATION,
       variables: { email },
     });
   } catch (err) {
@@ -146,12 +160,15 @@ export async function resetPassword(
   resetToken: string,
   password: string
 ): Promise<AuthResult> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: CUSTOMER_RESET_MUTATION,
+    await storefront.graphql(CUSTOMER_RESET_MUTATION, {
-    variables: { id, input: { resetToken, password } },
+      variables: { id, input: { resetToken, password } },
-  });
+    }),
+    'CustomerReset'
+  );
 
-  const result = response.data.customerReset;
+  const result = data.customerReset;
+  if (!result) return { token: null, errors: MUTATION_FAILED };
 
   return {
     token: result.customerAccessToken ?? null,
@@ -164,12 +181,15 @@ export async function activateAccount(
   activationToken: string,
   password: string
 ): Promise<AuthResult> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: CUSTOMER_ACTIVATE_MUTATION,
+    await storefront.graphql(CUSTOMER_ACTIVATE_MUTATION, {
-    variables: { id, input: { activationToken, password } },
+      variables: { id, input: { activationToken, password } },
-  });
+    }),
+    'CustomerActivate'
+  );
 
-  const result = response.data.customerActivate;
+  const result = data.customerActivate;
+  if (!result) return { token: null, errors: MUTATION_FAILED };
 
   return {
     token: result.customerAccessToken ?? null,
@@ -182,12 +202,14 @@ export async function getCustomer(
   orderCount = 10
 ): Promise<Customer | null> {
   try {
-    const response = await shopifyFetch({
+    const data = unwrapStorefrontResult(
-      query: CUSTOMER_QUERY,
+      await storefront.graphql(CUSTOMER_QUERY, {
-      variables: { customerAccessToken: accessToken, orderCount },
+        variables: { customerAccessToken: accessToken, orderCount },
-    });
+      }),
+      'GetCustomer'
+    );
 
-    return response.data.customer ?? null;
+    return data.customer ?? null;
   } catch (err) {
     // An expired or revoked token reads as "not signed in".
     console.error('Failed to load customer:', err);
@@ -204,12 +226,15 @@ export async function updateCustomer(
     phone?: string;
   }
 ): Promise<{ customer: Customer | null; errors: CustomerUserError[] }> {
-  const response = await shopifyFetch({
+  const data = unwrapStorefrontResult(
-    query: CUSTOMER_UPDATE_MUTATION,
+    await storefront.graphql(CUSTOMER_UPDATE_MUTATION, {
-    variables: { customerAccessToken: accessToken, customer },
+      variables: { customerAccessToken: accessToken, customer },
-  });
+    }),
+    'CustomerUpdate'
+  );
 
-  const result = response.data.customerUpdate;
+  const result = data.customerUpdate;
+  if (!result) return { customer: null, errors: MUTATION_FAILED };
 
   return {
     customer: result.customer ?? null,

tsconfig.json

@@ -20,6 +20,9 @@
     "plugins": [
       {
         "name": "next"
+      },
+      {
+        "name": "@shopify/hydrogen/ts-plugin"
       }
     ],
     "paths": {

yarn.lock

@@ -5,6 +5,31 @@ __metadata:
   version: 10
   cacheKey: 10c0
 
+"@0no-co/graphql.web@npm:^1.0.5, @0no-co/graphql.web@npm:^1.3.1":
+  version: 1.3.3
+  resolution: "@0no-co/graphql.web@npm:1.3.3"
+  peerDependencies:
+    graphql: ^14.0.0 || ^15.0.0 || ^16.0.0
+  peerDependenciesMeta:
+    graphql:
+      optional: true
+  checksum: 10c0/7237b805118049e9023e5fa4fd71c9334e1f85df6f98933038cc1b919f388e814fd1beae9e41b6a7509643f6a208ece0422dbc5d8474d24bec957020c899fb93
+  languageName: node
+  linkType: hard
+
+"@0no-co/graphqlsp@npm:^1.12.13":
+  version: 1.17.3
+  resolution: "@0no-co/graphqlsp@npm:1.17.3"
+  dependencies:
+    "@gql.tada/internal": "npm:^1.2.0"
+    graphql: "npm:^15.5.0 || ^16.0.0 || ^17.0.0"
+  peerDependencies:
+    graphql: ^15.5.0 || ^16.0.0 || ^17.0.0
+    typescript: ^5.0.0 || ^6.0.0
+  checksum: 10c0/fa0f2d74275827e1c8aee36e07aaa0d86138b9f450e3e06e51be05cd507a95c1f7e7f603eaf611f6defdb2634f19acd0c2be16c222eff4802c67916ca77d4d7d
+  languageName: node
+  linkType: hard
+
 "@ai-sdk/gateway@npm:4.0.33":
   version: 4.0.33
   resolution: "@ai-sdk/gateway@npm:4.0.33"
@@ -88,7 +113,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@emnapi/runtime@npm:^1.11.1, @emnapi/runtime@npm:^1.7.0":
+"@emnapi/runtime@npm:^1.11.1, @emnapi/runtime@npm:^1.11.3":
   version: 1.11.3
   resolution: "@emnapi/runtime@npm:1.11.3"
   dependencies:
@@ -144,18 +169,64 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@img/colour@npm:^1.0.0":
+"@gql.tada/cli-utils@npm:1.7.3":
+  version: 1.7.3
+  resolution: "@gql.tada/cli-utils@npm:1.7.3"
+  dependencies:
+    "@0no-co/graphqlsp": "npm:^1.12.13"
+    "@gql.tada/internal": "npm:1.0.9"
+    graphql: "npm:^15.5.0 || ^16.0.0 || ^17.0.0"
+  peerDependencies:
+    "@0no-co/graphqlsp": ^1.12.13
+    "@gql.tada/svelte-support": 1.0.2
+    "@gql.tada/vue-support": 1.0.2
+    graphql: ^15.5.0 || ^16.0.0 || ^17.0.0
+    typescript: ^5.0.0 || ^6.0.0
+  peerDependenciesMeta:
+    "@gql.tada/svelte-support":
+      optional: true
+    "@gql.tada/vue-support":
+      optional: true
+  checksum: 10c0/55405687375cbda9a9e963fc627939a55c64e81816c8d6433add3564f2fc2c0600ec60c98e01de77fa21511713daf9e84b644362d9ce571f0ea5c43851c68b6f
+  languageName: node
+  linkType: hard
+
+"@gql.tada/internal@npm:1.0.9":
+  version: 1.0.9
+  resolution: "@gql.tada/internal@npm:1.0.9"
+  dependencies:
+    "@0no-co/graphql.web": "npm:^1.0.5"
+  peerDependencies:
+    graphql: ^15.5.0 || ^16.0.0 || ^17.0.0
+    typescript: ^5.0.0 || ^6.0.0
+  checksum: 10c0/5599ab58bc5859bf9d38f13e4ca0aae564cf7e94fbfa9afdb9932d4719fb945cb19da917fe23ed0cf115550ce07d31bcac89c229385fe7077754b54c2bed16e9
+  languageName: node
+  linkType: hard
+
+"@gql.tada/internal@npm:^1.2.0":
+  version: 1.2.2
+  resolution: "@gql.tada/internal@npm:1.2.2"
+  dependencies:
+    "@0no-co/graphql.web": "npm:^1.3.1"
+  peerDependencies:
+    graphql: ^15.5.0 || ^16.0.0 || ^17.0.0
+    typescript: ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0
+  checksum: 10c0/2861061a64fa88dbd8bac84cff87bc33a30e9ed971cbee9f8d9a52ec27a17ffc64c389fb6a75f2231458524556829b81f4744b55ccb433e46d28e1066a5d4655
+  languageName: node
+  linkType: hard
+
+"@img/colour@npm:^1.1.0":
   version: 1.1.0
   resolution: "@img/colour@npm:1.1.0"
   checksum: 10c0/2ebea2c0bbaee73b99badcefa04e1e71d83f36e5369337d3121dca841f4569533c4e2faddda6d62dd247f0d5cca143711f9446c59bcce81e427ba433a7a94a17
   languageName: node
   linkType: hard
 
-"@img/sharp-darwin-arm64@npm:0.34.5":
+"@img/sharp-darwin-arm64@npm:0.35.4":
-  version: 0.34.5
+  version: 0.35.4
-  resolution: "@img/sharp-darwin-arm64@npm:0.34.5"
+  resolution: "@img/sharp-darwin-arm64@npm:0.35.4"
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+    "@img/sharp-libvips-darwin-arm64": "npm:1.3.3"
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+  version: 0.35.4
-  resolution: "@img/sharp-darwin-x64@npm:0.34.5"
+  resolution: "@img/sharp-darwin-x64@npm:0.35.4"
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+    "@img/sharp-libvips-darwin-x64": "npm:1.3.3"
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-  resolution: "@img/sharp-libvips-darwin-arm64@npm:1.2.4"
+  resolution: "@img/sharp-freebsd-wasm32@npm:0.35.4"
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+    "@img/sharp-libvips-linux-arm64": "npm:1.3.3"
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+"graphql@npm:^15.5.0 || ^16.0.0 || ^17.0.0":
+  version: 17.0.2
+  resolution: "graphql@npm:17.0.2"
+  checksum: 10c0/766546216b891439ed09fd8584963df2013e26f2f79f096036eaaa2788c38964e049c8a142d68e3afdabdd8bbe70042639e83f0f4b82edbc7c6850421f072bb6
+  languageName: node
+  linkType: hard
+
 "hast-util-sanitize@npm:^5.0.0":
   version: 5.0.2
   resolution: "hast-util-sanitize@npm:5.0.2"
@@ -3283,7 +3399,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"nanoid@npm:^3.3.16, nanoid@npm:^3.3.6":
+"nanoid@npm:^3.3.16":
   version: 3.3.16
   resolution: "nanoid@npm:3.3.16"
   bin:
@@ -3301,24 +3417,24 @@ __metadata:
   languageName: node
   linkType: hard
 
-"next@npm:16.2.10":
+"next@npm:16.3.6":
-  version: 16.2.10
+  version: 16.3.6
-  resolution: "next@npm:16.2.10"
+  resolution: "next@npm:16.3.6"
   dependencies:
-    "@next/env": "npm:16.2.10"
+    "@next/env": "npm:16.3.6"
-    "@next/swc-darwin-arm64": "npm:16.2.10"
+    "@next/swc-darwin-arm64": "npm:16.3.6"
-    "@next/swc-darwin-x64": "npm:16.2.10"
+    "@next/swc-darwin-x64": "npm:16.3.6"
-    "@next/swc-linux-arm64-gnu": "npm:16.2.10"
+    "@next/swc-linux-arm64-gnu": "npm:16.3.6"
-    "@next/swc-linux-arm64-musl": "npm:16.2.10"
+    "@next/swc-linux-arm64-musl": "npm:16.3.6"
-    "@next/swc-linux-x64-gnu": "npm:16.2.10"
+    "@next/swc-linux-x64-gnu": "npm:16.3.6"
-    "@next/swc-linux-x64-musl": "npm:16.2.10"
+    "@next/swc-linux-x64-musl": "npm:16.3.6"
-    "@next/swc-win32-arm64-msvc": "npm:16.2.10"
+    "@next/swc-win32-arm64-msvc": "npm:16.3.6"
-    "@next/swc-win32-x64-msvc": "npm:16.2.10"
+    "@next/swc-win32-x64-msvc": "npm:16.3.6"
-    "@swc/helpers": "npm:0.5.15"
+    "@swc/helpers": "npm:0.5.23"
     baseline-browser-mapping: "npm:^2.9.19"
     caniuse-lite: "npm:^1.0.30001579"
-    postcss: "npm:8.4.31"
+    postcss: "npm:8.5.23"
-    sharp: "npm:^0.34.5"
+    sharp: "npm:^0.35.4"
     styled-jsx: "npm:5.1.6"
   peerDependencies:
     "@opentelemetry/api": ^1.1.0
@@ -3357,7 +3473,7 @@ __metadata:
       optional: true
   bin:
     next: dist/bin/next
-  checksum: 10c0/e242f60b3caaf05bdf62a9ca85cea774f3081e1e900ac9ffe5b5975ca10584a904cf566873812abf1f25b965ef3de6451e7790e947800616909c2d4ecb54d1b9
+  checksum: 10c0/a67c2f34374d495e9b9cd7a7825404f50713012ee8653dc9cf3f454adba48a2303d3424c70c5a40fe1f421f65e3e10175a17604acb86106242ff65c59e115e56
   languageName: node
   linkType: hard
 
@@ -3366,12 +3482,12 @@ __metadata:
   resolution: "nextjs-app@workspace:."
   dependencies:
     "@ai-sdk/react": "npm:^4.0.47"
-    "@next/swc-wasm-web": "npm:16.2.10"
+    "@next/swc-wasm-web": "npm:16.3.6"
     "@openrouter/ai-sdk-provider": "npm:^3.0.0"
     "@radix-ui/react-slot": "npm:^1.3.3"
     "@radix-ui/react-use-controllable-state": "npm:^1.2.6"
     "@remixicon/react": "npm:^4.9.0"
-    "@shopify/storefront-api-client": "npm:^1.0.0"
+    "@shopify/hydrogen": "npm:0.0.0-preview-116d5d7-20260730141607"
     "@tailwindcss/postcss": "npm:^4"
     "@types/hast": "npm:^3.0.5"
     "@types/node": "npm:^22"
@@ -3388,7 +3504,7 @@ __metadata:
     lucide-react: "npm:^0.562.0"
     motion: "npm:^12.23.26"
     nanoid: "npm:^6.0.0"
-    next: "npm:16.2.10"
+    next: "npm:16.3.6"
     radix-ui: "npm:^1.6.7"
     react: "npm:^19.0.0"
     react-dom: "npm:^19.0.0"
@@ -3424,7 +3540,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"picocolors@npm:^1.0.0, picocolors@npm:^1.1.1":
+"picocolors@npm:^1.1.1":
   version: 1.1.1
   resolution: "picocolors@npm:1.1.1"
   checksum: 10c0/e2e3e8170ab9d7c7421969adaa7e1b31434f789afb9b3f115f6b96d91945041ac3ceb02e9ec6fe6510ff036bcc0bf91e69a1772edc0b707e12b19c0f2d6bcf58
@@ -3438,14 +3554,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"postcss@npm:8.4.31":
+"postcss@npm:8.5.23":
-  version: 8.4.31
+  version: 8.5.23
-  resolution: "postcss@npm:8.4.31"
+  resolution: "postcss@npm:8.5.23"
   dependencies:
-    nanoid: "npm:^3.3.6"
+    nanoid: "npm:^3.3.16"
-    picocolors: "npm:^1.0.0"
+    picocolors: "npm:^1.1.1"
-    source-map-js: "npm:^1.0.2"
+    source-map-js: "npm:^1.2.1"
-  checksum: 10c0/748b82e6e5fc34034dcf2ae88ea3d11fd09f69b6c50ecdd3b4a875cfc7cdca435c958b211e2cb52355422ab6fccb7d8f2f2923161d7a1b281029e4a913d59acf
+  checksum: 10c0/ed714e635b330bb42666ecdd0c0b4f30224ded15b0b0052d6bc2b92832f2cf17d1c1141359453f96f0a84f8fbf4c405a74df187f559163b8f31131b2535455aa
   languageName: node
   linkType: hard
 
@@ -3683,7 +3799,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"semver@npm:^7.7.3":
+"semver@npm:^7.8.5":
   version: 7.8.5
   resolution: "semver@npm:7.8.5"
   bin:
@@ -3692,42 +3808,45 @@ __metadata:
   languageName: node
   linkType: hard
 
-"sharp@npm:^0.34.5":
+"sharp@npm:^0.35.4":
-  version: 0.34.5
+  version: 0.35.4
-  resolution: "sharp@npm:0.34.5"
+  resolution: "sharp@npm:0.35.4"
   dependencies:
-    "@img/colour": "npm:^1.0.0"
+    "@img/colour": "npm:^1.1.0"
-    "@img/sharp-darwin-arm64": "npm:0.34.5"
+    "@img/sharp-darwin-arm64": "npm:0.35.4"
-    "@img/sharp-darwin-x64": "npm:0.34.5"
+    "@img/sharp-darwin-x64": "npm:0.35.4"
-    "@img/sharp-libvips-darwin-arm64": "npm:1.2.4"
+    "@img/sharp-freebsd-wasm32": "npm:0.35.4"
-    "@img/sharp-libvips-darwin-x64": "npm:1.2.4"
+    "@img/sharp-libvips-darwin-arm64": "npm:1.3.3"
-    "@img/sharp-libvips-linux-arm": "npm:1.2.4"
+    "@img/sharp-libvips-darwin-x64": "npm:1.3.3"
-    "@img/sharp-libvips-linux-arm64": "npm:1.2.4"
+    "@img/sharp-libvips-linux-arm": "npm:1.3.3"
-    "@img/sharp-libvips-linux-ppc64": "npm:1.2.4"
+    "@img/sharp-libvips-linux-arm64": "npm:1.3.3"
-    "@img/sharp-libvips-linux-riscv64": "npm:1.2.4"
+    "@img/sharp-libvips-linux-ppc64": "npm:1.3.3"
-    "@img/sharp-libvips-linux-s390x": "npm:1.2.4"
+    "@img/sharp-libvips-linux-riscv64": "npm:1.3.3"
-    "@img/sharp-libvips-linux-x64": "npm:1.2.4"
+    "@img/sharp-libvips-linux-s390x": "npm:1.3.3"
-    "@img/sharp-libvips-linuxmusl-arm64": "npm:1.2.4"
+    "@img/sharp-libvips-linux-x64": "npm:1.3.3"
-    "@img/sharp-libvips-linuxmusl-x64": "npm:1.2.4"
+    "@img/sharp-libvips-linuxmusl-arm64": "npm:1.3.3"
-    "@img/sharp-linux-arm": "npm:0.34.5"
+    "@img/sharp-libvips-linuxmusl-x64": "npm:1.3.3"
-    "@img/sharp-linux-arm64": "npm:0.34.5"
+    "@img/sharp-linux-arm": "npm:0.35.4"
-    "@img/sharp-linux-ppc64": "npm:0.34.5"
+    "@img/sharp-linux-arm64": "npm:0.35.4"
-    "@img/sharp-linux-riscv64": "npm:0.34.5"
+    "@img/sharp-linux-ppc64": "npm:0.35.4"
-    "@img/sharp-linux-s390x": "npm:0.34.5"
+    "@img/sharp-linux-riscv64": "npm:0.35.4"
-    "@img/sharp-linux-x64": "npm:0.34.5"
+    "@img/sharp-linux-s390x": "npm:0.35.4"
-    "@img/sharp-linuxmusl-arm64": "npm:0.34.5"
+    "@img/sharp-linux-x64": "npm:0.35.4"
-    "@img/sharp-linuxmusl-x64": "npm:0.34.5"
+    "@img/sharp-linuxmusl-arm64": "npm:0.35.4"
-    "@img/sharp-wasm32": "npm:0.34.5"
+    "@img/sharp-linuxmusl-x64": "npm:0.35.4"
-    "@img/sharp-win32-arm64": "npm:0.34.5"
+    "@img/sharp-webcontainers-wasm32": "npm:0.35.4"
-    "@img/sharp-win32-ia32": "npm:0.34.5"
+    "@img/sharp-win32-arm64": "npm:0.35.4"
-    "@img/sharp-win32-x64": "npm:0.34.5"
+    "@img/sharp-win32-ia32": "npm:0.35.4"
+    "@img/sharp-win32-x64": "npm:0.35.4"
     detect-libc: "npm:^2.1.2"
-    semver: "npm:^7.7.3"
+    semver: "npm:^7.8.5"
   dependenciesMeta:
     "@img/sharp-darwin-arm64":
       optional: true
     "@img/sharp-darwin-x64":
       optional: true
+    "@img/sharp-freebsd-wasm32":
+      optional: true
     "@img/sharp-libvips-darwin-arm64":
       optional: true
     "@img/sharp-libvips-darwin-x64":
@@ -3764,7 +3883,7 @@ __metadata:
       optional: true
     "@img/sharp-linuxmusl-x64":
       optional: true
-    "@img/sharp-wasm32":
+    "@img/sharp-webcontainers-wasm32":
       optional: true
     "@img/sharp-win32-arm64":
       optional: true
@@ -3772,7 +3891,10 @@ __metadata:
       optional: true
     "@img/sharp-win32-x64":
       optional: true
-  checksum: 10c0/fd79e29df0597a7d5704b8461c51f944ead91a5243691697be6e8243b966402beda53ddc6f0a53b96ea3cb8221f0b244aa588114d3ebf8734fb4aefd41ab802f
+  peerDependenciesMeta:
+    "@types/node":
+      optional: true
+  checksum: 10c0/dbcc0909200cbff98e82805c86085b94afbd45f373897a04b21e52e9bbc1671dc64970350dd3cb6b2d0970f3444be7100d728005dc6620e39b599269ed7e15eb
   languageName: node
   linkType: hard
 
@@ -3786,7 +3908,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"source-map-js@npm:^1.0.2, source-map-js@npm:^1.2.1":
+"source-map-js@npm:^1.2.1":
   version: 1.2.1
   resolution: "source-map-js@npm:1.2.1"
   checksum: 10c0/7bda1fc4c197e3c6ff17de1b8b2c20e60af81b63a52cb32ec5a5d67a20a7d42651e2cb34ebe93833c5a2a084377e17455854fee3e21e7925c64a51b6a52b0faf