From 16340c3b4832e85f988270a6496bbc4760a20f0d Mon Sep 17 00:00:00 2001
From: Alireza Hassani <alirezahassani@Meshkees-Mac-mini.local>
Date: Tue, 25 Aug 2026 17:33:39 +0330
Subject: [PATCH] Add guest cart drawer, Continue handoff, and shared customer
 login.

Co-authored-by: Cursor <cursoragent@cursor.com>
---
 Ai-data/prompt-cart.txt       |  36 +++++++
 app/api/auth/handoff/route.ts |  17 ++++
 app/api/auth/me/route.ts      |  10 ++
 app/layout.tsx                |  16 ++-
 components/AccountMenu.tsx    | 138 +++++++++++++++++++++++++
 components/AppProviders.tsx   |  18 ++++
 components/CartPopup.tsx      | 181 ++++++++++++++++++++++++++++++++
 components/Header.tsx         |  77 +++++++++-----
 components/ProductTabs.tsx    |  24 ++---
 components/ProductView.tsx    |   9 +-
 lib/api.ts                    |  16 +++
 lib/cart.ts                   |  39 -------
 lib/cart.tsx                  | 187 ++++++++++++++++++++++++++++++++++
 lib/customer.ts               |  59 +++++++++++
 lib/meshkee-server.ts         |  42 ++++++++
 lib/session.tsx               | 175 +++++++++++++++++++++++++++++++
 lib/shared-auth-cookie.ts     | 123 ++++++++++++++++++++++
 lib/site.ts                   |  12 ++-
 18 files changed, 1082 insertions(+), 97 deletions(-)
 create mode 100644 Ai-data/prompt-cart.txt
 create mode 100644 app/api/auth/handoff/route.ts
 create mode 100644 app/api/auth/me/route.ts
 create mode 100644 components/AccountMenu.tsx
 create mode 100644 components/AppProviders.tsx
 create mode 100644 components/CartPopup.tsx
 delete mode 100644 lib/cart.ts
 create mode 100644 lib/cart.tsx
 create mode 100644 lib/customer.ts
 create mode 100644 lib/meshkee-server.ts
 create mode 100644 lib/session.tsx
 create mode 100644 lib/shared-auth-cookie.ts

diff --git a/Ai-data/prompt-cart.txt b/Ai-data/prompt-cart.txt
new file mode 100644
index 0000000..f059c73
--- /dev/null
+++ b/Ai-data/prompt-cart.txt
@@ -0,0 +1,36 @@
+Build storefront cart UI + Continue handoff + shared customer login for this Meshkee website.
+## Remote only
+- Production Meshkee API and live site only — no localhost / local ports.
+- Customer app: https://customer.<WEBSITE_DOMAIN>
+- Business app: https://business.<WEBSITE_DOMAIN>
+Production env:
+NEXT_PUBLIC_API_BASE_URL=https://api.meshkee.com/api/v1
+NEXT_PUBLIC_DOMAIN=<WEBSITE_DOMAIN>
+NEXT_PUBLIC_CUSTOMER_ORIGIN=https://customer.<WEBSITE_DOMAIN>
+NEXT_PUBLIC_BUSINESS_ORIGIN=https://business.<WEBSITE_DOMAIN>
+
+
+## Scope
+Website only. Do not rebuild customer checkout, payment, addresses, or account pages — those are global on customer.<WEBSITE_DOMAIN>.
+
+
+## Cart UI
+- Header cart icon + count badge
+- Popup/drawer: lines, quantity, remove, total, Continue
+- Cart lines use store item variant id (not product id)
+- Guest cart: localStorage key meshkee-guest-cart + cookie on .<WEBSITE_DOMAIN>
+- Guest line: { id, name, slug?, price, quantity, image? } (id = variant id)
+
+
+## Continue
+- Logged in → customer.<WEBSITE_DOMAIN>/checkout/cart#guestCart=<base64url JSON>
+- Guest → customer.<WEBSITE_DOMAIN>/login?redirect=/checkout/cart#guestCart=<base64url JSON>
+- If no guest lines left, open /checkout/cart without the hash
+
+
+## Shared session
+- Cookies: meshkee_customer_access_token / meshkee_customer_refresh_token on .<WEBSITE_DOMAIN> (SameSite=Lax; chunk large tokens)
+- Hydrate site session from those cookies
+- ورود → customer login with redirect=/
+- Logged in: "{firstName} عزیز" menu → profile, orders, logout; “مدیریت وبسایت” only for site admins → business app (handoff when available)
+Match existing site design. Keep the change limited to cart popup, Continue handoff, and header auth.
\ No newline at end of file
diff --git a/app/api/auth/handoff/route.ts b/app/api/auth/handoff/route.ts
new file mode 100644
index 0000000..93365f5
--- /dev/null
+++ b/app/api/auth/handoff/route.ts
@@ -0,0 +1,17 @@
+import { getBearerToken, jsonResponse, meshkeeFetch, unauthorizedResponse } from "@/lib/meshkee-server";
+
+export async function POST(request: Request) {
+  const token = getBearerToken(request);
+  if (!token) return unauthorizedResponse();
+
+  const res = await meshkeeFetch("/auth/handoff", {
+    method: "POST",
+    token,
+  });
+
+  if (!res.ok) {
+    return jsonResponse({ error: "امکان باز کردن پنل مدیریت نیست." }, res.status);
+  }
+
+  return jsonResponse(res.data);
+}
diff --git a/app/api/auth/me/route.ts b/app/api/auth/me/route.ts
new file mode 100644
index 0000000..53435fb
--- /dev/null
+++ b/app/api/auth/me/route.ts
@@ -0,0 +1,10 @@
+import { getBearerToken, jsonResponse, meshkeeFetch, unauthorizedResponse } from "@/lib/meshkee-server";
+
+export async function GET(request: Request) {
+  const token = getBearerToken(request);
+  if (!token) return unauthorizedResponse();
+
+  const res = await meshkeeFetch("/auth/me", { token });
+  if (!res.ok) return jsonResponse({ error: "Unauthorized" }, res.status);
+  return jsonResponse(res.data);
+}
diff --git a/app/layout.tsx b/app/layout.tsx
index b3d04bc..df9a501 100644
--- a/app/layout.tsx
+++ b/app/layout.tsx
@@ -1,8 +1,10 @@
 import type { Metadata } from "next";
 import { Carter_One, Oswald, Vazirmatn } from "next/font/google";
+import { AppProviders } from "@/components/AppProviders";
 import { Footer } from "@/components/Footer";
 import { Header } from "@/components/Header";
 import { TopHeader } from "@/components/TopHeader";
+import { getTenant } from "@/lib/api";
 import { SITE } from "@/lib/site";
 import "./globals.css";
 
@@ -30,14 +32,18 @@ export const metadata: Metadata = {
   description: SITE.aboutShort,
 };
 
-export default function RootLayout({ children }: LayoutProps<"/">) {
+export default async function RootLayout({ children }: LayoutProps<"/">) {
+  const tenant = await getTenant();
+
   return (
     <html lang="fa" dir="rtl" className={`${vazir.variable} ${oswald.variable} ${carter.variable} h-full antialiased`}>
       <body className="min-h-full flex flex-col bg-white text-ink">
-        <TopHeader />
-        <Header />
-        <main className="flex-1">{children}</main>
-        <Footer />
+        <AppProviders businessId={tenant ? String(tenant.id) : ""}>
+          <TopHeader />
+          <Header />
+          <main className="flex-1">{children}</main>
+          <Footer />
+        </AppProviders>
       </body>
     </html>
   );
diff --git a/components/AccountMenu.tsx b/components/AccountMenu.tsx
new file mode 100644
index 0000000..d8c6e3f
--- /dev/null
+++ b/components/AccountMenu.tsx
@@ -0,0 +1,138 @@
+"use client";
+
+import { useEffect, useRef, useState, type MouseEvent } from "react";
+import { businessDashboardUrl, customerDashboardUrl } from "@/lib/customer";
+import { useSession } from "@/lib/session";
+import { IconChevron, IconUser } from "./Icons";
+
+const itemClass =
+  "block w-full px-3 py-2.5 text-right text-sm text-ink transition-colors hover:bg-brand-soft hover:text-brand";
+
+export function AccountMenu({
+  displayName,
+  isWebsiteAdmin,
+  onLogout,
+  compact = false,
+}: {
+  displayName: string;
+  isWebsiteAdmin: boolean;
+  onLogout: () => void;
+  compact?: boolean;
+}) {
+  const [open, setOpen] = useState(false);
+  const [handoffBusy, setHandoffBusy] = useState(false);
+  const menuRef = useRef<HTMLDivElement>(null);
+  const { getAccessToken } = useSession();
+
+  useEffect(() => {
+    if (!open) return;
+    const onClickOutside = (event: Event) => {
+      if (menuRef.current && event.target instanceof Node && !menuRef.current.contains(event.target)) {
+        setOpen(false);
+      }
+    };
+    const onKeyDown = (event: KeyboardEvent) => {
+      if (event.key === "Escape") setOpen(false);
+    };
+    document.addEventListener("mousedown", onClickOutside);
+    document.addEventListener("keydown", onKeyDown);
+    return () => {
+      document.removeEventListener("mousedown", onClickOutside);
+      document.removeEventListener("keydown", onKeyDown);
+    };
+  }, [open]);
+
+  async function openBusinessDashboard(event: MouseEvent<HTMLAnchorElement>) {
+    if (event.metaKey || event.ctrlKey || event.shiftKey || event.altKey || event.button !== 0) {
+      return;
+    }
+    event.preventDefault();
+    if (handoffBusy) return;
+
+    const baseUrl = businessDashboardUrl();
+    const popup = window.open("about:blank", "_blank");
+    setHandoffBusy(true);
+    try {
+      const token = getAccessToken();
+      const res = await fetch("/api/auth/handoff", {
+        method: "POST",
+        headers: token ? { Authorization: `Bearer ${token}` } : undefined,
+      });
+      if (!res.ok) throw new Error("handoff failed");
+      const data = (await res.json()) as { ticket?: string };
+      const url = new URL(baseUrl);
+      if (data.ticket) url.searchParams.set("handoff", data.ticket);
+      if (popup) {
+        popup.opener = null;
+        popup.location.replace(url.toString());
+      } else {
+        window.open(url.toString(), "_blank", "noopener,noreferrer");
+      }
+    } catch {
+      if (popup) popup.location.replace(baseUrl);
+      else window.open(baseUrl, "_blank", "noopener,noreferrer");
+    } finally {
+      setHandoffBusy(false);
+      setOpen(false);
+    }
+  }
+
+  return (
+    <div ref={menuRef} className="relative">
+      <button
+        type="button"
+        onClick={() => setOpen((value) => !value)}
+        aria-expanded={open}
+        aria-haspopup="menu"
+        className={`flex max-w-[12rem] items-center gap-2 rounded-full px-3 py-2 text-sm hover:bg-zinc-100 ${
+          compact ? "w-full justify-between px-0 hover:bg-transparent" : ""
+        }`}
+      >
+        <span className="flex min-w-0 items-center gap-2">
+          <IconUser />
+          <span className="truncate font-medium">
+            {displayName} عزیز
+          </span>
+        </span>
+        <IconChevron className={`w-3.5 h-3.5 shrink-0 transition-transform ${open ? "rotate-90" : "-rotate-90"}`} />
+      </button>
+
+      {open && (
+        <div
+          role="menu"
+          className={`absolute z-50 mt-2 min-w-[11rem] overflow-hidden rounded-2xl border border-black/5 bg-white py-1 shadow-xl ${
+            compact ? "start-0 end-0" : "start-0"
+          }`}
+        >
+          <a role="menuitem" href={customerDashboardUrl("/profile")} className={itemClass} onClick={() => setOpen(false)}>
+            پروفایل من
+          </a>
+          <a role="menuitem" href={customerDashboardUrl("/orders")} className={itemClass} onClick={() => setOpen(false)}>
+            سفارشات من
+          </a>
+          {isWebsiteAdmin && (
+            <a
+              role="menuitem"
+              href={businessDashboardUrl()}
+              className={itemClass}
+              onClick={openBusinessDashboard}
+            >
+              {handoffBusy ? "در حال انتقال…" : "مدیریت وبسایت"}
+            </a>
+          )}
+          <button
+            type="button"
+            role="menuitem"
+            className={`${itemClass} text-brand hover:text-[#e51f1f]`}
+            onClick={() => {
+              setOpen(false);
+              onLogout();
+            }}
+          >
+            خروج
+          </button>
+        </div>
+      )}
+    </div>
+  );
+}
diff --git a/components/AppProviders.tsx b/components/AppProviders.tsx
new file mode 100644
index 0000000..ee5dcbb
--- /dev/null
+++ b/components/AppProviders.tsx
@@ -0,0 +1,18 @@
+"use client";
+
+import { CartProvider } from "@/lib/cart";
+import { SessionProvider } from "@/lib/session";
+
+export function AppProviders({
+  children,
+  businessId,
+}: {
+  children: React.ReactNode;
+  businessId: string;
+}) {
+  return (
+    <SessionProvider businessId={businessId}>
+      <CartProvider>{children}</CartProvider>
+    </SessionProvider>
+  );
+}
diff --git a/components/CartPopup.tsx b/components/CartPopup.tsx
new file mode 100644
index 0000000..5b85840
--- /dev/null
+++ b/components/CartPopup.tsx
@@ -0,0 +1,181 @@
+"use client";
+
+import Link from "next/link";
+import { useEffect, useState } from "react";
+import { createPortal } from "react-dom";
+import { customerContinueCheckoutUrl } from "@/lib/customer";
+import { useCart } from "@/lib/cart";
+import { formatPrice } from "@/lib/format";
+import { PLACEHOLDER } from "@/lib/data";
+import { useSession } from "@/lib/session";
+import { IconClose } from "./Icons";
+import { Media } from "./Media";
+
+type Props = {
+  open: boolean;
+  onClose: () => void;
+};
+
+export function CartPopup({ open, onClose }: Props) {
+  const { isAuthenticated } = useSession();
+  const { items, itemCount, total, removeItem, setQuantity } = useCart();
+  const [mounted, setMounted] = useState(false);
+
+  useEffect(() => {
+    setMounted(true);
+  }, []);
+
+  useEffect(() => {
+    if (!open) return;
+    const onKeyDown = (event: KeyboardEvent) => {
+      if (event.key === "Escape") onClose();
+    };
+    document.addEventListener("keydown", onKeyDown);
+    document.body.style.overflow = "hidden";
+    return () => {
+      document.removeEventListener("keydown", onKeyDown);
+      document.body.style.overflow = "";
+    };
+  }, [open, onClose]);
+
+  if (!mounted || !open) return null;
+
+  const continueHref = customerContinueCheckoutUrl(isAuthenticated, items);
+
+  return createPortal(
+    <div>
+      <button type="button" className="fixed inset-0 z-[120] bg-black/40" aria-label="بستن" onClick={onClose} />
+      <div
+        role="dialog"
+        aria-modal="true"
+        aria-label="سبد خرید"
+        className="fixed inset-y-0 left-0 z-[130] flex h-dvh w-full max-w-md flex-col bg-white shadow-2xl"
+      >
+        <div className="flex items-center justify-between border-b border-black/5 px-5 py-4">
+          <div>
+            <h2 className="text-base font-extrabold">سبد خرید</h2>
+            {itemCount > 0 && (
+              <p className="mt-0.5 text-xs text-zinc-400">
+                {itemCount.toLocaleString("fa-IR")} کالا
+              </p>
+            )}
+          </div>
+          <button
+            type="button"
+            onClick={onClose}
+            aria-label="بستن"
+            className="grid size-9 place-items-center rounded-full hover:bg-zinc-100"
+          >
+            <IconClose className="w-4 h-4" />
+          </button>
+        </div>
+
+        <div className="flex-1 overflow-y-auto px-5 py-4">
+          {items.length === 0 ? (
+            <div className="flex h-full flex-col items-center justify-center text-center">
+              <p className="text-sm text-zinc-500">سبد خرید شما خالی است</p>
+            </div>
+          ) : (
+            <ul className="space-y-4">
+              {items.map((item) => (
+                <li key={item.id} className="flex gap-3 border-b border-black/5 pb-4 last:border-0">
+                  <Link
+                    href={item.slug ? `/products/${item.slug}` : "/products"}
+                    onClick={onClose}
+                    className="size-20 shrink-0 overflow-hidden rounded-xl border border-black/5"
+                  >
+                    <Media src={item.image || PLACEHOLDER.product} alt="" className="size-full" sizes="80px" />
+                  </Link>
+                  <div className="min-w-0 flex-1">
+                    <Link
+                      href={item.slug ? `/products/${item.slug}` : "/products"}
+                      onClick={onClose}
+                      className="line-clamp-2 text-sm font-medium leading-6 hover:text-brand"
+                    >
+                      {item.name}
+                    </Link>
+                    <div className="mt-2 flex items-center justify-between gap-2">
+                      <div className="flex items-center overflow-hidden rounded-lg border border-black/10">
+                        <button
+                          type="button"
+                          aria-label="افزایش"
+                          onClick={() => setQuantity(item.id, item.quantity + 1)}
+                          className="grid size-8 place-items-center text-sm hover:bg-zinc-50"
+                        >
+                          +
+                        </button>
+                        <span className="min-w-7 text-center text-xs font-bold">
+                          {item.quantity.toLocaleString("fa-IR")}
+                        </span>
+                        <button
+                          type="button"
+                          aria-label="کاهش"
+                          onClick={() => setQuantity(item.id, item.quantity - 1)}
+                          className="grid size-8 place-items-center text-sm hover:bg-zinc-50"
+                        >
+                          −
+                        </button>
+                      </div>
+                      <div className="flex items-center gap-2">
+                        <span className="text-sm font-bold">
+                          {formatPrice(item.price * item.quantity)}
+                          <span className="mr-0.5 text-[11px] font-normal text-zinc-400">تومان</span>
+                        </span>
+                        <button
+                          type="button"
+                          onClick={() => removeItem(item.id)}
+                          aria-label="حذف"
+                          className="grid size-8 place-items-center rounded-lg text-zinc-400 hover:bg-brand-soft hover:text-brand"
+                        >
+                          <svg viewBox="0 0 24 24" fill="none" className="h-4 w-4" aria-hidden>
+                            <path
+                              d="M4 7h16M9 7V5a1 1 0 0 1 1-1h4a1 1 0 0 1 1 1v2m-8 0v12a1 1 0 0 0 1 1h6a1 1 0 0 0 1-1V7M10 11v5M14 11v5"
+                              stroke="currentColor"
+                              strokeWidth="1.75"
+                              strokeLinecap="round"
+                              strokeLinejoin="round"
+                            />
+                          </svg>
+                        </button>
+                      </div>
+                    </div>
+                  </div>
+                </li>
+              ))}
+            </ul>
+          )}
+        </div>
+
+        <div className="border-t border-black/5 px-5 py-4">
+          {items.length > 0 && (
+            <div className="mb-3 flex items-center justify-between text-sm">
+              <span className="text-zinc-500">جمع کل</span>
+              <span className="font-extrabold">
+                {formatPrice(total)}
+                <span className="mr-0.5 text-xs font-normal text-zinc-400">تومان</span>
+              </span>
+            </div>
+          )}
+          {items.length > 0 ? (
+            <a
+              href={continueHref}
+              onClick={onClose}
+              className="flex w-full items-center justify-center rounded-xl bg-brand py-3 text-sm text-white hover:bg-[#e51f1f]"
+            >
+              ادامه
+            </a>
+          ) : (
+            <button
+              type="button"
+              onClick={onClose}
+              className="flex w-full items-center justify-center rounded-xl bg-brand-soft py-3 text-sm font-medium text-brand"
+            >
+              ادامه خرید
+            </button>
+          )}
+        </div>
+      </div>
+    </div>,
+    document.body,
+  );
+}
diff --git a/components/Header.tsx b/components/Header.tsx
index 9b08ffe..7f35317 100644
--- a/components/Header.tsx
+++ b/components/Header.tsx
@@ -2,10 +2,14 @@
 
 import Image from "next/image";
 import Link from "next/link";
-import { useEffect, useState } from "react";
-import { cartCount } from "@/lib/cart";
+import { useState } from "react";
+import { customerLoginUrl } from "@/lib/customer";
 import { parentCategories } from "@/lib/data";
 import { SITE } from "@/lib/site";
+import { useCart } from "@/lib/cart";
+import { useSession } from "@/lib/session";
+import { AccountMenu } from "./AccountMenu";
+import { CartPopup } from "./CartPopup";
 import { IconCart, IconChevron, IconClose, IconMenu, IconUser } from "./Icons";
 import { SearchBox } from "./SearchBox";
 
@@ -19,18 +23,11 @@ const nav = [
 export function Header() {
   const [open, setOpen] = useState(false);
   const [mega, setMega] = useState(false);
-  const [count, setCount] = useState(0);
-
-  useEffect(() => {
-    const sync = () => setCount(cartCount());
-    sync();
-    window.addEventListener("cart-updated", sync);
-    window.addEventListener("storage", sync);
-    return () => {
-      window.removeEventListener("cart-updated", sync);
-      window.removeEventListener("storage", sync);
-    };
-  }, []);
+  const [cartOpen, setCartOpen] = useState(false);
+  const { itemCount } = useCart();
+  const { isAuthenticated, user, logout, isWebsiteAdmin } = useSession();
+  const displayName = user?.firstName?.trim() || "حساب من";
+  const loginHref = customerLoginUrl("/");
 
   return (
     <header className="sticky top-0 z-50 bg-white border-b border-black/5">
@@ -95,19 +92,29 @@ export function Header() {
         <SearchBox className="hidden md:block ms-4 max-w-sm flex-1 rounded-full bg-zinc-100 px-3" />
 
         <div className="flex items-center gap-2 ms-auto">
-          <a
-            href={SITE.customerUrl}
-            className="flex items-center gap-2 rounded-full px-3 py-2 text-sm hover:bg-zinc-100"
+          {isAuthenticated ? (
+            <div className="hidden sm:block">
+              <AccountMenu displayName={displayName} isWebsiteAdmin={isWebsiteAdmin} onLogout={logout} />
+            </div>
+          ) : (
+            <a href={loginHref} className="flex items-center gap-2 rounded-full px-3 py-2 text-sm hover:bg-zinc-100">
+              <IconUser />
+              <span className="hidden sm:inline">ورود / ثبت نام</span>
+            </a>
+          )}
+          <button
+            type="button"
+            onClick={() => setCartOpen(true)}
+            aria-label={itemCount > 0 ? `سبد خرید، ${itemCount.toLocaleString("fa-IR")} کالا` : "سبد خرید"}
+            className="relative grid place-items-center w-10 h-10 rounded-full hover:bg-zinc-100"
           >
-            <IconUser />
-            <span className="hidden sm:inline">ورود / ثبت نام</span>
-          </a>
-          <Link href="/cart" className="relative grid place-items-center w-10 h-10 rounded-full hover:bg-zinc-100">
             <IconCart className="w-6 h-6 text-brand" />
-            <span className="absolute top-1 left-1 grid place-items-center w-4 h-4 rounded-full bg-brand text-[10px] text-white">
-              {count.toLocaleString("fa-IR")}
-            </span>
-          </Link>
+            {itemCount > 0 && (
+              <span className="absolute top-1 left-1 grid place-items-center min-w-4 h-4 rounded-full bg-brand px-0.5 text-[10px] text-white">
+                {itemCount.toLocaleString("fa-IR")}
+              </span>
+            )}
+          </button>
         </div>
       </div>
 
@@ -147,13 +154,27 @@ export function Header() {
                   {item.name}
                 </Link>
               ))}
-              <a href={SITE.customerUrl} className="py-2">
-                ورود / ثبت نام
-              </a>
+              {isAuthenticated ? (
+                <AccountMenu
+                  displayName={displayName}
+                  isWebsiteAdmin={isWebsiteAdmin}
+                  compact
+                  onLogout={() => {
+                    logout();
+                    setOpen(false);
+                  }}
+                />
+              ) : (
+                <a href={loginHref} className="py-2">
+                  ورود / ثبت نام
+                </a>
+              )}
             </div>
           </aside>
         </div>
       )}
+
+      <CartPopup open={cartOpen} onClose={() => setCartOpen(false)} />
     </header>
   );
 }
diff --git a/components/ProductTabs.tsx b/components/ProductTabs.tsx
index d10748f..bad3394 100644
--- a/components/ProductTabs.tsx
+++ b/components/ProductTabs.tsx
@@ -1,9 +1,10 @@
 "use client";
 
-import { useEffect, useState, type FormEvent } from "react";
+import { useState, type FormEvent } from "react";
 import type { ApiComment } from "@/lib/api";
 import { formatDate } from "@/lib/format";
-import { SITE } from "@/lib/site";
+import { customerLoginUrl } from "@/lib/customer";
+import { useSession } from "@/lib/session";
 import { RichContent } from "./RichContent";
 
 type Props = {
@@ -23,26 +24,13 @@ const tabs: Tab[] = [
   { id: "comments", fa: "نظرات", en: "Comments" },
 ];
 
-function readToken() {
-  if (typeof window === "undefined") return "";
-  return (
-    window.localStorage.getItem("accessToken") ||
-    window.localStorage.getItem("meshkee_access_token") ||
-    ""
-  );
-}
-
 export function ProductTabs({ productId, descriptionHtml, comments: initialComments }: Props) {
   const [tab, setTab] = useState<"description" | "comments">("description");
   const [comments, setComments] = useState(initialComments);
   const [sent, setSent] = useState(false);
   const [sending, setSending] = useState(false);
-  const [loggedIn, setLoggedIn] = useState(false);
-  const authorName = "کاربر";
-
-  useEffect(() => {
-    setLoggedIn(Boolean(readToken()));
-  }, []);
+  const { isAuthenticated: loggedIn, user } = useSession();
+  const authorName = user?.firstName?.trim() || "کاربر";
 
   async function onSubmit(event: FormEvent<HTMLFormElement>) {
     event.preventDefault();
@@ -157,7 +145,7 @@ export function ProductTabs({ productId, descriptionHtml, comments: initialComme
               <div className="rounded-xl bg-zinc-50 px-4 py-5 text-center">
                 <p className="text-sm text-zinc-600">برای ثبت نظر ابتدا وارد حساب کاربری شوید.</p>
                 <a
-                  href={SITE.customerUrl}
+                  href={customerLoginUrl("/")}
                   className="mt-3 inline-block text-sm text-brand"
                 >
                   ورود / ثبت نام
diff --git a/components/ProductView.tsx b/components/ProductView.tsx
index ed16679..742e360 100644
--- a/components/ProductView.tsx
+++ b/components/ProductView.tsx
@@ -131,19 +131,20 @@ export function ProductView({ product, variants }: Props) {
             </div>
             <button
               type="button"
+              disabled={!variant?.id}
               onClick={() => {
+                if (!variant?.id) return;
                 addToCart({
-                  productId: product.id,
-                  variantId: variant?.id,
+                  id: variant.id,
                   slug: product.slug,
                   name: product.nameFa || product.title,
                   image: images[0] || PLACEHOLDER.product,
                   price,
-                  qty,
+                  quantity: qty,
                 });
                 setAdded(true);
               }}
-              className="inline-flex flex-1 items-center justify-center gap-2 rounded-xl bg-brand px-5 py-2.5 text-sm text-white hover:bg-[#e51f1f]"
+              className="inline-flex flex-1 items-center justify-center gap-2 rounded-xl bg-brand px-5 py-2.5 text-sm text-white hover:bg-[#e51f1f] disabled:opacity-60"
             >
               <IconCart className="w-5 h-5 text-white" />
               {added ? "به سبد اضافه شد" : "افزودن به سبد خرید"}
diff --git a/lib/api.ts b/lib/api.ts
index b01a54c..c2ce0dd 100644
--- a/lib/api.ts
+++ b/lib/api.ts
@@ -195,6 +195,22 @@ export async function getCategoryBySlug(slug: string) {
   return categories.find((category) => category.slug === slug) ?? null;
 }
 
+export type ApiTenant = {
+  id: string | number;
+  name: string;
+  nameFa?: string | null;
+  slug?: string;
+  domain?: string;
+};
+
+export async function getTenant() {
+  try {
+    return await apiGet<ApiTenant>(`/tenants/${API.domain}`);
+  } catch {
+    return null;
+  }
+}
+
 export async function getComments(entityType: "product" | "blog", entityId: string) {
   try {
     const data = await apiGet<{ items: ApiComment[] }>(`${tenant()}/comments`, { entityType, entityId });
diff --git a/lib/cart.ts b/lib/cart.ts
deleted file mode 100644
index 79fbaa8..0000000
--- a/lib/cart.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-export type CartItem = {
-  productId: string;
-  variantId?: string;
-  slug: string;
-  name: string;
-  image: string;
-  price: number;
-  qty: number;
-};
-
-const KEY = "salar-cart";
-
-export function getCart(): CartItem[] {
-  if (typeof window === "undefined") return [];
-  try {
-    const raw = window.localStorage.getItem(KEY);
-    return raw ? (JSON.parse(raw) as CartItem[]) : [];
-  } catch {
-    return [];
-  }
-}
-
-export function cartCount() {
-  return getCart().reduce((sum, item) => sum + item.qty, 0);
-}
-
-export function addToCart(item: CartItem) {
-  const cart = getCart();
-  const index = cart.findIndex(
-    (entry) => entry.productId === item.productId && entry.variantId === item.variantId,
-  );
-  if (index >= 0) {
-    cart[index] = { ...cart[index], qty: cart[index].qty + item.qty };
-  } else {
-    cart.push(item);
-  }
-  window.localStorage.setItem(KEY, JSON.stringify(cart));
-  window.dispatchEvent(new Event("cart-updated"));
-}
diff --git a/lib/cart.tsx b/lib/cart.tsx
new file mode 100644
index 0000000..aac4432
--- /dev/null
+++ b/lib/cart.tsx
@@ -0,0 +1,187 @@
+"use client";
+
+import {
+  createContext,
+  useCallback,
+  useContext,
+  useEffect,
+  useMemo,
+  useState,
+  type ReactNode,
+} from "react";
+import type { GuestCartLine } from "./customer";
+
+export type CartItem = GuestCartLine;
+
+const KEY = "meshkee-guest-cart";
+const LEGACY_KEY = "salar-cart";
+const CART_EVENT = "cart-updated";
+
+function cookieDomain(): string | undefined {
+  if (typeof window === "undefined") return undefined;
+  const host = window.location.hostname.toLowerCase();
+  if (host === "localhost" || host === "127.0.0.1") return undefined;
+  const parts = host.split(".").filter(Boolean);
+  if (parts.length < 2) return undefined;
+  return `.${parts.slice(-2).join(".")}`;
+}
+
+function parseItems(raw: string | null): CartItem[] {
+  if (!raw) return [];
+  try {
+    const parsed = JSON.parse(raw) as unknown;
+    if (!Array.isArray(parsed)) return [];
+    return parsed
+      .map((entry) => normalizeLine(entry))
+      .filter((item): item is CartItem => Boolean(item));
+  } catch {
+    return [];
+  }
+}
+
+function normalizeLine(entry: unknown): CartItem | null {
+  if (!entry || typeof entry !== "object") return null;
+  const item = entry as Record<string, unknown>;
+  const id = String(item.id ?? item.variantId ?? item.storeItemVariantId ?? "").trim();
+  if (!id) return null;
+  const quantity = Math.max(1, Math.floor(Number(item.quantity ?? item.qty) || 1));
+  const price = Number(item.price) || 0;
+  const name = String(item.name ?? "محصول");
+  const slug = item.slug ? String(item.slug) : undefined;
+  const image = item.image != null && item.image !== "" ? String(item.image) : undefined;
+  return { id, name, ...(slug ? { slug } : {}), price, quantity, ...(image ? { image } : {}) };
+}
+
+function writeSharedCookie(items: CartItem[]) {
+  if (typeof document === "undefined") return;
+  const domain = cookieDomain();
+  const maxAge = 60 * 60 * 24 * 30;
+  const encoded = encodeURIComponent(
+    JSON.stringify(
+      items.map(({ id, name, slug, price, quantity }) => ({
+        id,
+        name,
+        slug,
+        price,
+        quantity,
+        image: null as string | null,
+      })),
+    ),
+  );
+  if (encoded.length > 3500) return;
+  let cookie = `${KEY}=${encoded}; path=/; max-age=${maxAge}; SameSite=Lax`;
+  if (domain) cookie += `; domain=${domain}`;
+  document.cookie = cookie;
+}
+
+function notify() {
+  window.dispatchEvent(new Event(CART_EVENT));
+}
+
+export function getCart(): CartItem[] {
+  if (typeof window === "undefined") return [];
+  const primary = parseItems(window.localStorage.getItem(KEY));
+  if (primary.length > 0) return primary;
+  const legacy = parseItems(window.localStorage.getItem(LEGACY_KEY));
+  if (legacy.length > 0) {
+    writeCart(legacy);
+    window.localStorage.removeItem(LEGACY_KEY);
+    return legacy;
+  }
+  return [];
+}
+
+export function writeCart(items: CartItem[]) {
+  if (typeof window === "undefined") return;
+  window.localStorage.setItem(KEY, JSON.stringify(items));
+  window.localStorage.removeItem(LEGACY_KEY);
+  try {
+    writeSharedCookie(items);
+  } catch {
+    // ignore cookie failures
+  }
+  notify();
+}
+
+export function cartCount() {
+  return getCart().reduce((sum, item) => sum + item.quantity, 0);
+}
+
+export function cartTotal() {
+  return getCart().reduce((sum, item) => sum + item.price * item.quantity, 0);
+}
+
+export function addToCart(item: CartItem) {
+  const cart = getCart();
+  const quantity = Math.max(1, Math.floor(item.quantity) || 1);
+  const index = cart.findIndex((entry) => entry.id === item.id);
+  if (index >= 0) {
+    cart[index] = {
+      ...cart[index],
+      ...item,
+      quantity: cart[index].quantity + quantity,
+    };
+  } else {
+    cart.push({ ...item, quantity });
+  }
+  writeCart(cart);
+}
+
+export function setCartQuantity(id: string, quantity: number) {
+  if (quantity < 1) {
+    writeCart(getCart().filter((item) => item.id !== id));
+    return;
+  }
+  writeCart(getCart().map((item) => (item.id === id ? { ...item, quantity } : item)));
+}
+
+export function removeFromCart(id: string) {
+  writeCart(getCart().filter((item) => item.id !== id));
+}
+
+type CartContextValue = {
+  items: CartItem[];
+  itemCount: number;
+  total: number;
+  addItem: (item: CartItem) => void;
+  removeItem: (id: string) => void;
+  setQuantity: (id: string, quantity: number) => void;
+};
+
+const CartContext = createContext<CartContextValue | null>(null);
+
+export function CartProvider({ children }: { children: ReactNode }) {
+  const [items, setItems] = useState<CartItem[]>([]);
+
+  const sync = useCallback(() => setItems(getCart()), []);
+
+  useEffect(() => {
+    sync();
+    window.addEventListener(CART_EVENT, sync);
+    window.addEventListener("storage", sync);
+    return () => {
+      window.removeEventListener(CART_EVENT, sync);
+      window.removeEventListener("storage", sync);
+    };
+  }, [sync]);
+
+  const addItem = useCallback((item: CartItem) => addToCart(item), []);
+  const removeItem = useCallback((id: string) => removeFromCart(id), []);
+  const setQuantity = useCallback((id: string, quantity: number) => setCartQuantity(id, quantity), []);
+
+  const itemCount = useMemo(() => items.reduce((sum, item) => sum + item.quantity, 0), [items]);
+  const total = useMemo(() => items.reduce((sum, item) => sum + item.price * item.quantity, 0), [items]);
+
+  const value = useMemo(
+    () => ({ items, itemCount, total, addItem, removeItem, setQuantity }),
+    [items, itemCount, total, addItem, removeItem, setQuantity],
+  );
+
+  return <CartContext.Provider value={value}>{children}</CartContext.Provider>;
+}
+
+export function useCart() {
+  const ctx = useContext(CartContext);
+  if (!ctx) throw new Error("useCart must be used within CartProvider");
+  return ctx;
+}
diff --git a/lib/customer.ts b/lib/customer.ts
new file mode 100644
index 0000000..317e8f2
--- /dev/null
+++ b/lib/customer.ts
@@ -0,0 +1,59 @@
+import { BUSINESS_ORIGIN, CUSTOMER_ORIGIN } from "./site";
+
+export const GUEST_CART_URL_PARAM = "guestCart";
+
+export type GuestCartLine = {
+  id: string;
+  name: string;
+  slug?: string;
+  price: number;
+  quantity: number;
+  image?: string | null;
+};
+
+export function encodeGuestCartForUrl(items: GuestCartLine[]): string {
+  const payload = items.map(({ id, name, slug, price, quantity, image }) => ({
+    id,
+    name,
+    ...(slug ? { slug } : {}),
+    price,
+    quantity,
+    image: image ?? null,
+  }));
+  const json = JSON.stringify(payload);
+  return btoa(unescape(encodeURIComponent(json)))
+    .replace(/\+/g, "-")
+    .replace(/\//g, "_")
+    .replace(/=+$/, "");
+}
+
+export function customerDashboardUrl(path = "/"): string {
+  const normalized = path.startsWith("/") ? path : `/${path}`;
+  return `${CUSTOMER_ORIGIN}${normalized}`;
+}
+
+export function businessDashboardUrl(): string {
+  return `${BUSINESS_ORIGIN}/`;
+}
+
+export function customerLoginUrl(redirectPath = "/", cartItems?: GuestCartLine[]): string {
+  let redirect = redirectPath.startsWith("/") ? redirectPath : `/${redirectPath}`;
+  if (cartItems && cartItems.length > 0) {
+    const join = redirect.includes("#") ? "&" : "#";
+    redirect = `${redirect}${join}${GUEST_CART_URL_PARAM}=${encodeGuestCartForUrl(cartItems)}`;
+  }
+  const url = new URL("/login", CUSTOMER_ORIGIN);
+  url.searchParams.set("redirect", redirect);
+  return url.toString();
+}
+
+export function customerContinueCheckoutUrl(isAuthenticated: boolean, cartItems: GuestCartLine[] = []): string {
+  if (isAuthenticated) {
+    const url = new URL("/checkout/cart", CUSTOMER_ORIGIN);
+    if (cartItems.length > 0) {
+      url.hash = `${GUEST_CART_URL_PARAM}=${encodeGuestCartForUrl(cartItems)}`;
+    }
+    return url.toString();
+  }
+  return customerLoginUrl("/checkout/cart", cartItems);
+}
diff --git a/lib/meshkee-server.ts b/lib/meshkee-server.ts
new file mode 100644
index 0000000..699416d
--- /dev/null
+++ b/lib/meshkee-server.ts
@@ -0,0 +1,42 @@
+import { API } from "./site";
+
+export function getBearerToken(request: Request): string | null {
+  const auth = request.headers.get("authorization");
+  if (auth?.startsWith("Bearer ")) return auth.slice(7);
+  return null;
+}
+
+export async function meshkeeFetch(
+  path: string,
+  init?: RequestInit & { token?: string | null },
+): Promise<{ ok: boolean; status: number; data: unknown }> {
+  const headers = new Headers(init?.headers);
+  if (!headers.has("Content-Type") && init?.body) {
+    headers.set("Content-Type", "application/json");
+  }
+  if (init?.token) {
+    headers.set("Authorization", `Bearer ${init.token}`);
+  }
+
+  const res = await fetch(`${API.base}${path}`, {
+    ...init,
+    headers,
+  });
+
+  let data: unknown = null;
+  try {
+    data = await res.json();
+  } catch {
+    data = null;
+  }
+
+  return { ok: res.ok, status: res.status, data };
+}
+
+export function jsonResponse(data: unknown, status = 200) {
+  return Response.json(data, { status });
+}
+
+export function unauthorizedResponse() {
+  return jsonResponse({ error: "Unauthorized" }, 401);
+}
diff --git a/lib/session.tsx b/lib/session.tsx
new file mode 100644
index 0000000..81f2dc0
--- /dev/null
+++ b/lib/session.tsx
@@ -0,0 +1,175 @@
+"use client";
+
+import {
+  createContext,
+  useCallback,
+  useContext,
+  useEffect,
+  useMemo,
+  useState,
+  type ReactNode,
+} from "react";
+import {
+  clearSharedAuthCookies,
+  hydrateLocalTokensFromSharedCookies,
+  SHARED_ACCESS_TOKEN_KEY,
+  SHARED_REFRESH_TOKEN_KEY,
+  writeSharedAuthCookies,
+} from "./shared-auth-cookie";
+
+export type AuthBusinessMembership = {
+  id: string;
+  name: string;
+  slug: string;
+  isOwner: boolean;
+  teamRole: string | null;
+};
+
+export type AuthUser = {
+  id: string;
+  firstName?: string;
+  lastName?: string;
+  cellNumber?: string;
+  email?: string;
+  roles?: string[];
+  isSuperAdmin?: boolean;
+  businesses?: AuthBusinessMembership[];
+};
+
+type SessionContextValue = {
+  user: AuthUser | null;
+  isAuthenticated: boolean;
+  ready: boolean;
+  businessId: string;
+  isWebsiteAdmin: boolean;
+  logout: () => void;
+  getAccessToken: () => string | null;
+};
+
+function normalizeUser(raw: Partial<AuthUser> & { id?: string | number }): AuthUser | null {
+  if (raw.id == null) return null;
+  return {
+    id: String(raw.id),
+    firstName: raw.firstName ?? undefined,
+    lastName: raw.lastName ?? undefined,
+    cellNumber: raw.cellNumber ?? undefined,
+    email: raw.email ?? undefined,
+    roles: Array.isArray(raw.roles) ? raw.roles : undefined,
+    isSuperAdmin: Boolean(raw.isSuperAdmin),
+    businesses: Array.isArray(raw.businesses)
+      ? raw.businesses.map((business) => ({
+          id: String(business.id),
+          name: business.name,
+          slug: business.slug,
+          isOwner: Boolean(business.isOwner),
+          teamRole: business.teamRole ?? null,
+        }))
+      : undefined,
+  };
+}
+
+export function isWebsiteAdminForBusiness(user: AuthUser | null | undefined, businessId: string): boolean {
+  if (!user || !businessId) return false;
+  if (user.isSuperAdmin || user.roles?.includes("super_admin")) return true;
+  return Boolean(
+    user.businesses?.some(
+      (business) => String(business.id) === String(businessId) && (business.isOwner || Boolean(business.teamRole)),
+    ),
+  );
+}
+
+const SessionContext = createContext<SessionContextValue | null>(null);
+
+function readToken(key: string): string | null {
+  try {
+    return localStorage.getItem(key);
+  } catch {
+    return null;
+  }
+}
+
+function writeToken(key: string, value: string | null) {
+  try {
+    if (value) localStorage.setItem(key, value);
+    else localStorage.removeItem(key);
+  } catch {
+    // ignore
+  }
+}
+
+export function SessionProvider({
+  children,
+  businessId,
+}: {
+  children: ReactNode;
+  businessId: string;
+}) {
+  const [user, setUser] = useState<AuthUser | null>(null);
+  const [ready, setReady] = useState(false);
+
+  const getAccessToken = useCallback(() => {
+    hydrateLocalTokensFromSharedCookies(SHARED_ACCESS_TOKEN_KEY, SHARED_REFRESH_TOKEN_KEY);
+    return readToken(SHARED_ACCESS_TOKEN_KEY);
+  }, []);
+
+  const clearTokens = useCallback(() => {
+    writeToken(SHARED_ACCESS_TOKEN_KEY, null);
+    writeToken(SHARED_REFRESH_TOKEN_KEY, null);
+    writeToken("accessToken", null);
+    writeToken("meshkee_access_token", null);
+    clearSharedAuthCookies();
+    setUser(null);
+  }, []);
+
+  useEffect(() => {
+    const token = getAccessToken();
+    if (!token) {
+      setReady(true);
+      return;
+    }
+
+    const refresh = readToken(SHARED_REFRESH_TOKEN_KEY);
+    writeSharedAuthCookies(token, refresh ?? undefined);
+
+    fetch("/api/auth/me", { headers: { Authorization: `Bearer ${token}` } })
+      .then(async (res) => {
+        if (res.status === 401) {
+          clearTokens();
+          return;
+        }
+        if (!res.ok) return;
+        const data = (await res.json()) as { user?: AuthUser } & AuthUser;
+        const next = normalizeUser(data.user ?? data);
+        if (next) setUser(next);
+      })
+      .catch(() => undefined)
+      .finally(() => setReady(true));
+  }, [clearTokens, getAccessToken]);
+
+  const logout = useCallback(() => {
+    clearTokens();
+  }, [clearTokens]);
+
+  const isWebsiteAdmin = useMemo(() => isWebsiteAdminForBusiness(user, businessId), [user, businessId]);
+
+  const value = useMemo(
+    () => ({
+      user,
+      isAuthenticated: Boolean(user),
+      ready,
+      businessId,
+      isWebsiteAdmin,
+      logout,
+      getAccessToken,
+    }),
+    [user, ready, businessId, isWebsiteAdmin, logout, getAccessToken],
+  );
+
+  return <SessionContext.Provider value={value}>{children}</SessionContext.Provider>;
+}
+
+export function useSession() {
+  const ctx = useContext(SessionContext);
+  if (!ctx) throw new Error("useSession must be used within SessionProvider");
+  return ctx;
+}
diff --git a/lib/shared-auth-cookie.ts b/lib/shared-auth-cookie.ts
new file mode 100644
index 0000000..87843c4
--- /dev/null
+++ b/lib/shared-auth-cookie.ts
@@ -0,0 +1,123 @@
+/** Shared auth cookies so storefront + customer.{domain} share one login. */
+
+export const SHARED_ACCESS_TOKEN_KEY = "meshkee_customer_access_token";
+export const SHARED_REFRESH_TOKEN_KEY = "meshkee_customer_refresh_token";
+
+const CHUNK_SIZE = 2800;
+const MAX_CHUNKS = 24;
+
+function cookieDomain(): string | undefined {
+  if (typeof window === "undefined") return undefined;
+  const host = window.location.hostname.toLowerCase();
+  if (host === "localhost" || host === "127.0.0.1") return undefined;
+  const parts = host.split(".").filter(Boolean);
+  if (parts.length < 2) return undefined;
+  return `.${parts.slice(-2).join(".")}`;
+}
+
+function readRawCookie(name: string): string | null {
+  if (typeof document === "undefined") return null;
+  const prefix = `${name}=`;
+  const match = document.cookie.split("; ").find((row) => row.startsWith(prefix));
+  if (!match) return null;
+  return match.slice(prefix.length);
+}
+
+function writeRawCookie(name: string, value: string | null) {
+  if (typeof document === "undefined") return;
+  const domain = cookieDomain();
+  if (value == null) {
+    let cookie = `${name}=; path=/; max-age=0; SameSite=Lax`;
+    if (domain) cookie += `; domain=${domain}`;
+    document.cookie = cookie;
+    return;
+  }
+  const maxAge = 60 * 60 * 24 * 30;
+  let cookie = `${name}=${value}; path=/; max-age=${maxAge}; SameSite=Lax`;
+  if (domain) cookie += `; domain=${domain}`;
+  document.cookie = cookie;
+}
+
+function clearChunkedCookie(name: string) {
+  writeRawCookie(name, null);
+  const n = Number(readRawCookie(`${name}_n`) || "0");
+  writeRawCookie(`${name}_n`, null);
+  for (let i = 0; i < Math.max(n, MAX_CHUNKS); i++) {
+    writeRawCookie(`${name}_${i}`, null);
+  }
+}
+
+function writeCookie(name: string, value: string | null) {
+  clearChunkedCookie(name);
+  if (value == null || value === "") return;
+
+  const encoded = encodeURIComponent(value);
+  if (encoded.length <= 3500) {
+    writeRawCookie(name, encoded);
+    return;
+  }
+
+  const chunks: string[] = [];
+  for (let i = 0; i < encoded.length; i += CHUNK_SIZE) {
+    chunks.push(encoded.slice(i, i + CHUNK_SIZE));
+  }
+  writeRawCookie(`${name}_n`, String(chunks.length));
+  chunks.forEach((chunk, i) => writeRawCookie(`${name}_${i}`, chunk));
+}
+
+function readCookie(name: string): string | null {
+  const n = Number(readRawCookie(`${name}_n`) || "0");
+  if (n > 0) {
+    let encoded = "";
+    for (let i = 0; i < n; i++) {
+      const part = readRawCookie(`${name}_${i}`);
+      if (part == null) return null;
+      encoded += part;
+    }
+    try {
+      return decodeURIComponent(encoded);
+    } catch {
+      return null;
+    }
+  }
+
+  const raw = readRawCookie(name);
+  if (raw == null) return null;
+  try {
+    return decodeURIComponent(raw);
+  } catch {
+    return null;
+  }
+}
+
+export function writeSharedAuthCookies(accessToken: string, refreshToken?: string) {
+  writeCookie(SHARED_ACCESS_TOKEN_KEY, accessToken);
+  if (refreshToken) writeCookie(SHARED_REFRESH_TOKEN_KEY, refreshToken);
+}
+
+export function clearSharedAuthCookies() {
+  writeCookie(SHARED_ACCESS_TOKEN_KEY, null);
+  writeCookie(SHARED_REFRESH_TOKEN_KEY, null);
+}
+
+export function readSharedAccessToken(): string | null {
+  return readCookie(SHARED_ACCESS_TOKEN_KEY);
+}
+
+export function readSharedRefreshToken(): string | null {
+  return readCookie(SHARED_REFRESH_TOKEN_KEY);
+}
+
+export function hydrateLocalTokensFromSharedCookies(
+  accessKey = SHARED_ACCESS_TOKEN_KEY,
+  refreshKey = SHARED_REFRESH_TOKEN_KEY,
+): boolean {
+  if (typeof window === "undefined") return false;
+  if (localStorage.getItem(accessKey)) return false;
+  const access = readSharedAccessToken();
+  if (!access) return false;
+  localStorage.setItem(accessKey, access);
+  const refresh = readSharedRefreshToken();
+  if (refresh) localStorage.setItem(refreshKey, refresh);
+  return true;
+}
diff --git a/lib/site.ts b/lib/site.ts
index 564a3e0..c4de6b6 100644
--- a/lib/site.ts
+++ b/lib/site.ts
@@ -1,16 +1,22 @@
-export const DOMAIN = "salarstore.com";
+export const DOMAIN = process.env.NEXT_PUBLIC_DOMAIN || "salarstore.com";
 
 export const API = {
-  base: "https://api.meshkee.com/api/v1",
+  base: process.env.NEXT_PUBLIC_API_BASE_URL?.replace(/\/$/, "") || "https://api.meshkee.com/api/v1",
   domain: DOMAIN,
 };
 
+export const CUSTOMER_ORIGIN =
+  process.env.NEXT_PUBLIC_CUSTOMER_ORIGIN?.replace(/\/$/, "") || `https://customer.${DOMAIN}`;
+
+export const BUSINESS_ORIGIN =
+  process.env.NEXT_PUBLIC_BUSINESS_ORIGIN?.replace(/\/$/, "") || `https://business.${DOMAIN}`;
+
 export const SITE = {
   nameFa: "سالار استور",
   nameEn: "SALAR STORE",
   tagline: "فروشگاه لوازم ورزشی و کوهنوردی",
   domain: DOMAIN,
-  customerUrl: `https://customer.${DOMAIN}`,
+  customerUrl: CUSTOMER_ORIGIN,
   phone: "09127491700",
   phoneDisplay: "0912 749 1700",
   address: "قم، بسیج (هنرستان)، نبش کوچه ۹",