integrate R module and add url editor ui

Replaces hardcoded paths with R module throughout:
- Shop components: layout nav, cart, product links
- Controllers: cart, checkout, contact, seo, order lookup
- Shop pages: collection, product, search, checkout success, etc.
- Site context: nav item url resolution

Admin URL management:
- Settings page: prefix editor with validation feedback
- Page renderer: url_editor component for page URLs
- CSS for url editor styling

Test updates for cache isolation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

assets/css/admin/components.css

@@ -2543,6 +2543,73 @@
   width: 5rem;
 }
 
+.page-settings-hint {
+  font-size: 0.6875rem;
+  color: var(--admin-text-secondary);
+  margin: 0;
+  padding-top: 0.125rem;
+}
+
+/* URL editor - segmented input for page URLs */
+
+.url-editor {
+  display: flex;
+  align-items: center;
+  gap: 0;
+}
+
+.url-editor-slash {
+  padding: 0.375rem 0.25rem;
+  background: var(--admin-bg);
+  border: 1px solid var(--admin-border);
+  border-right: none;
+  font-size: 0.875rem;
+  color: var(--admin-text-tertiary);
+
+  &:first-child {
+    border-radius: var(--admin-radius) 0 0 var(--admin-radius);
+  }
+}
+
+.url-editor-input {
+  border-radius: 0;
+  flex: 1;
+  min-width: 4rem;
+
+  &:last-child {
+    border-radius: 0 var(--admin-radius) var(--admin-radius) 0;
+  }
+}
+
+.url-editor-segmented .url-editor-input {
+  flex: 0 1 auto;
+  width: auto;
+}
+
+.url-editor-prefix {
+  max-width: 8rem;
+}
+
+.url-editor-fixed {
+  padding: 0.375rem 0.5rem;
+  background: var(--admin-bg);
+  border: 1px solid var(--admin-border);
+  border-left: none;
+  border-radius: 0 var(--admin-radius) var(--admin-radius) 0;
+  font-size: 0.875rem;
+  color: var(--admin-text-tertiary);
+  font-style: italic;
+}
+
+.url-editor-fixed-path {
+  padding: 0.375rem 0.5rem;
+  background: var(--admin-bg);
+  border: 1px solid var(--admin-border);
+  border-radius: var(--admin-radius);
+  font-size: 0.875rem;
+  color: var(--admin-text-secondary);
+}
+
 /* Block list in editor */
 
 .block-list {

lib/berrypod/site.ex

@@ -22,6 +22,7 @@ defmodule Berrypod.Site do
     NavItem
     |> where([n], n.location == ^location)
     |> order_by([n], asc: n.position)
+    |> preload(:page)
     |> Repo.all()
   end
 
@@ -89,14 +90,42 @@ defmodule Berrypod.Site do
   end
 
   defp nav_item_to_map(%NavItem{} = item) do
+    # When page_id is set, resolve URL dynamically via R module
+    # This ensures nav links stay up to date when page URLs change
+    href = resolve_nav_item_url(item)
+
     %{
       "label" => item.label,
-      "href" => item.url,
+      "href" => href,
-      "slug" => slug_from_url(item.url),
+      "slug" => slug_from_url(href),
       "page_id" => item.page_id
     }
   end
 
+  defp resolve_nav_item_url(%NavItem{page: %Berrypod.Pages.Page{} = page}) do
+    BerrypodWeb.R.page(page.slug)
+  end
+
+  defp resolve_nav_item_url(%NavItem{url: "/" <> slug}) when slug != "" do
+    # Internal page link stored as URL - resolve through R module
+    # This handles cases where page_id isn't set but URL points to a page
+    # Strip any trailing path segments (e.g., /collections/all -> collections)
+    base_slug = slug |> String.split("/") |> List.first()
+
+    # Route system pages through R module to get custom URL slugs
+    if Berrypod.Pages.Page.system_slug?(base_slug) do
+      BerrypodWeb.R.page(base_slug)
+    else
+      # Check if this is a custom page with a url_slug
+      case Berrypod.Pages.get_page(base_slug) do
+        %{url_slug: url_slug} when not is_nil(url_slug) -> "/" <> url_slug
+        _ -> "/" <> slug
+      end
+    end
+  end
+
+  defp resolve_nav_item_url(%NavItem{url: url}), do: url
+
   defp slug_from_url("/"), do: "home"
   defp slug_from_url("/collections" <> _), do: "collection"
   defp slug_from_url("/products" <> _), do: "pdp"

lib/berrypod_web.ex

@@ -44,6 +44,8 @@ defmodule BerrypodWeb do
       use Gettext, backend: BerrypodWeb.Gettext
 
       import Plug.Conn
+      # Runtime URL paths (custom slugs/prefixes)
+      alias BerrypodWeb.R
 
       unquote(verified_routes())
     end
@@ -53,6 +55,11 @@ defmodule BerrypodWeb do
     quote do
       use Phoenix.LiveView
 
+      # Enable sandbox access for LiveView processes in test mode
+      if Application.compile_env(:berrypod, :env) == :test do
+        on_mount BerrypodWeb.LiveSandboxHook
+      end
+
       unquote(html_helpers())
     end
   end
@@ -93,6 +100,8 @@ defmodule BerrypodWeb do
       # Common modules used in templates
       alias Phoenix.LiveView.JS
       alias BerrypodWeb.Layouts
+      # Runtime URL paths (custom slugs/prefixes)
+      alias BerrypodWeb.R
 
       # Routes generation with the ~p sigil
       unquote(verified_routes())

lib/berrypod_web/components/shop_components/cart.ex

@@ -6,6 +6,7 @@ defmodule BerrypodWeb.ShopComponents.Cart do
   import BerrypodWeb.ShopComponents.Base
 
   alias Berrypod.Products.{Product, ProductImage}
+  alias BerrypodWeb.R
 
   defp close_cart_drawer_js do
     Phoenix.LiveView.JS.push("close_cart_drawer")
@@ -193,7 +194,7 @@ defmodule BerrypodWeb.ShopComponents.Cart do
     >
       <%= if @mode != :preview do %>
         <.link
-          patch={"/products/#{@item.product_id}"}
+          patch={R.product(@item.product_id)}
           class={["cart-item-image", !@item.image && "cart-item-image--empty"]}
           data-size={if @size == :compact, do: "compact"}
           style={if @item.image, do: "background-image: url('#{@item.image}');"}
@@ -212,7 +213,7 @@ defmodule BerrypodWeb.ShopComponents.Cart do
         <h3 class="cart-item-name" data-size={if @size == :compact, do: "compact"}>
           <%= if @mode != :preview do %>
             <.link
-              patch={"/products/#{@item.product_id}"}
+              patch={R.product(@item.product_id)}
               class="cart-item-name-link"
             >
               {@item.name}
@@ -321,7 +322,7 @@ defmodule BerrypodWeb.ShopComponents.Cart do
         </button>
       <% else %>
         <.link
-          patch="/collections/all"
+          patch={R.collection("all")}
           class="cart-continue-link"
         >
           Continue shopping
@@ -533,7 +534,7 @@ defmodule BerrypodWeb.ShopComponents.Cart do
           </.shop_button>
           <p class="order-summary-notice">Checkout isn't available yet.</p>
           <.shop_link_outline
-            href="/collections/all"
+            href={R.collection("all")}
             class="order-summary-continue"
           >
             Continue shopping
@@ -544,7 +545,7 @@ defmodule BerrypodWeb.ShopComponents.Cart do
           </.shop_button>
           <p class="order-summary-notice">Remove unavailable items to checkout.</p>
           <.shop_link_outline
-            href="/collections/all"
+            href={R.collection("all")}
             class="order-summary-continue"
           >
             Continue shopping
@@ -557,7 +558,7 @@ defmodule BerrypodWeb.ShopComponents.Cart do
             </.shop_button>
           </form>
           <.shop_link_outline
-            href="/collections/all"
+            href={R.collection("all")}
             class="order-summary-continue"
           >
             Continue shopping

lib/berrypod_web/components/shop_components/layout.ex

@@ -4,6 +4,8 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   import BerrypodWeb.ShopComponents.Cart
   import BerrypodWeb.ShopComponents.Content
 
+  alias BerrypodWeb.R
+
   @doc """
   Renders the announcement bar.
 
@@ -153,10 +155,18 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   # Extract a slug from a URL for nav item matching
   defp extract_slug_from_url(url) when is_binary(url) do
     cond do
-      url == "/" -> "home"
+      url == "/" ->
-      String.starts_with?(url, "/collections") -> "collection"
+        "home"
-      String.starts_with?(url, "/products") -> "pdp"
+
-      true -> url |> String.trim_leading("/") |> String.split("/") |> List.first() || ""
+      true ->
+        # Extract first segment and check if it's a known prefix
+        first_segment = url |> String.trim_leading("/") |> String.split("/") |> List.first() || ""
+
+        case R.prefix_type_from_segment(first_segment) do
+          :collections -> "collection"
+          :products -> "pdp"
+          _ -> first_segment
+        end
     end
   end
 
@@ -651,7 +661,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
                   aria-selected="false"
                 >
                   <.link
-                    patch={"/products/#{item.product.slug || item.product.id}"}
+                    patch={R.product(item.product.slug || item.product.id)}
                     class="search-result"
                     phx-click={Phoenix.LiveView.JS.dispatch("close-search", to: "#search-modal")}
                   >
@@ -782,7 +792,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
                   </a>
                 <% else %>
                   <.link
-                    patch={"/collections/#{category.slug}"}
+                    patch={R.collection(category.slug)}
                     class="mobile-nav-link"
                     phx-click={
                       Phoenix.LiveView.JS.dispatch("close-mobile-nav", to: "#mobile-nav-drawer")
@@ -868,7 +878,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
                 <% else %>
                   <li>
                     <.link
-                      patch="/collections/all"
+                      patch={R.collection("all")}
                       class="footer-link"
                     >
                       All products
@@ -877,7 +887,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
                   <%= for category <- @categories do %>
                     <li>
                       <.link
-                        patch={"/collections/#{category.slug}"}
+                        patch={R.collection(category.slug)}
                         class="footer-link"
                       >
                         {category.name}
@@ -1013,7 +1023,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
           <.admin_cog_svg />
         </.link>
         <a
-          href="/search"
+          href={R.search()}
           phx-click={Phoenix.LiveView.JS.dispatch("open-search", to: "#search-modal")}
           class="header-icon-btn"
           aria-label="Search"
@@ -1031,7 +1041,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
           </svg>
         </a>
         <a
-          href="/cart"
+          href={R.cart()}
           phx-click={open_cart_drawer_js()}
           class="header-icon-btn"
           aria-label="Cart"
@@ -1241,6 +1251,7 @@ defmodule BerrypodWeb.ShopComponents.Layout do
   attr :editor_dirty, :boolean, default: false
   attr :theme_dirty, :boolean, default: false
   attr :site_dirty, :boolean, default: false
+  attr :settings_dirty, :boolean, default: false
   attr :editor_sheet_state, :atom, default: :collapsed
   attr :editor_save_status, :atom, default: :idle
   attr :editor_active_tab, :atom, default: :page
@@ -1263,7 +1274,8 @@ defmodule BerrypodWeb.ShopComponents.Layout do
     any_editing = assigns.editing || assigns.theme_editing
 
     # Any tab has unsaved changes
-    any_dirty = assigns.editor_dirty || assigns.theme_dirty || assigns.site_dirty
+    any_dirty =
+      assigns.editor_dirty || assigns.theme_dirty || assigns.site_dirty || assigns.settings_dirty
 
     assigns =
       assigns

lib/berrypod_web/components/shop_components/product.ex

@@ -5,6 +5,7 @@ defmodule BerrypodWeb.ShopComponents.Product do
   import BerrypodWeb.ShopComponents.Content, only: [responsive_image: 1]
 
   alias Berrypod.Products.{Product, ProductImage}
+  alias BerrypodWeb.R
 
   @doc """
   Renders a product card with configurable variants.
@@ -98,7 +99,7 @@ defmodule BerrypodWeb.ShopComponents.Product do
 
     product_url =
       if assigns.clickable && assigns.mode != :preview do
-        "/products/#{Map.get(assigns.product, :slug) || Map.get(assigns.product, :id)}"
+        R.product(Map.get(assigns.product, :slug) || Map.get(assigns.product, :id))
       end
 
     assigns =
@@ -157,7 +158,7 @@ defmodule BerrypodWeb.ShopComponents.Product do
           </p>
         <% else %>
           <.link
-            patch={"/collections/#{Slug.slugify(@product.category)}"}
+            patch={R.collection(Slug.slugify(@product.category))}
             class="product-card-category"
           >
             {@product.category}
@@ -177,7 +178,7 @@ defmodule BerrypodWeb.ShopComponents.Product do
             </a>
           <% else %>
             <.link
-              patch={"/products/#{Map.get(@product, :slug) || Map.get(@product, :id)}"}
+              patch={R.product(Map.get(@product, :slug) || Map.get(@product, :id))}
               class="stretched-link"
             >
               {@product.title}
@@ -629,7 +630,7 @@ defmodule BerrypodWeb.ShopComponents.Product do
             </a>
           <% else %>
             <.link
-              patch={"/collections/#{category.slug}"}
+              patch={R.collection(category.slug)}
               class="category-card"
             >
               <div

lib/berrypod_web/controllers/cart_controller.ex

@@ -41,13 +41,13 @@ defmodule BerrypodWeb.CartController do
     conn
     |> Cart.put_in_session(cart)
     |> put_flash(:info, "Added to basket")
-    |> redirect(to: ~p"/cart")
+    |> redirect(to: R.cart())
   end
 
   def add(conn, _params) do
     conn
     |> put_flash(:error, "Could not add item to basket")
-    |> redirect(to: ~p"/cart")
+    |> redirect(to: R.cart())
   end
 
   @doc """
@@ -60,7 +60,7 @@ defmodule BerrypodWeb.CartController do
     conn
     |> Cart.put_in_session(cart)
     |> put_flash(:info, "Removed from basket")
-    |> redirect(to: ~p"/cart")
+    |> redirect(to: R.cart())
   end
 
   @doc """
@@ -73,7 +73,7 @@ defmodule BerrypodWeb.CartController do
 
     conn
     |> Cart.put_in_session(cart)
-    |> redirect(to: ~p"/cart")
+    |> redirect(to: R.cart())
   end
 
   @doc """
@@ -82,11 +82,11 @@ defmodule BerrypodWeb.CartController do
   def update_country(conn, %{"country" => code}) when is_binary(code) and code != "" do
     conn
     |> put_session("country_code", code)
-    |> redirect(to: ~p"/cart")
+    |> redirect(to: R.cart())
   end
 
   def update_country(conn, _params) do
-    redirect(conn, to: ~p"/cart")
+    redirect(conn, to: R.cart())
   end
 
   defp parse_quantity(str) when is_binary(str) do

lib/berrypod_web/controllers/checkout_controller.ex

@@ -11,7 +11,7 @@ defmodule BerrypodWeb.CheckoutController do
     unless Settings.has_secret?("stripe_api_key") do
       conn
       |> put_flash(:error, "Checkout isn't available yet")
-      |> redirect(to: ~p"/cart")
+      |> redirect(to: R.cart())
     else
       cart_items = Cart.get_from_session(get_session(conn))
       hydrated = Cart.hydrate(cart_items)
@@ -20,12 +20,12 @@ defmodule BerrypodWeb.CheckoutController do
         hydrated == [] ->
           conn
           |> put_flash(:error, "Your basket is empty")
-          |> redirect(to: ~p"/cart")
+          |> redirect(to: R.cart())
 
         Enum.any?(hydrated, &(&1.is_available == false)) ->
           conn
           |> put_flash(:error, "Some items in your basket are no longer available")
-          |> redirect(to: ~p"/cart")
+          |> redirect(to: R.cart())
 
         true ->
           track_checkout_start(conn)
@@ -45,7 +45,7 @@ defmodule BerrypodWeb.CheckoutController do
 
         conn
         |> put_flash(:error, "Something went wrong. Please try again.")
-        |> redirect(to: ~p"/cart")
+        |> redirect(to: R.cart())
     end
   end
 
@@ -67,14 +67,12 @@ defmodule BerrypodWeb.CheckoutController do
         }
       end)
 
-    base_url = BerrypodWeb.Endpoint.url()
-
     params =
       %{
         mode: "payment",
         line_items: line_items,
-        success_url: "#{base_url}/checkout/success?session_id={CHECKOUT_SESSION_ID}",
+        success_url: R.url(R.checkout_success()) <> "?session_id={CHECKOUT_SESSION_ID}",
-        cancel_url: "#{base_url}/cart",
+        cancel_url: R.url(R.cart()),
         metadata: %{"order_id" => order.id},
         shipping_address_collection: %{
           allowed_countries: ["GB", "US", "CA", "AU", "DE", "FR", "NL", "IE", "AT", "BE"]
@@ -96,7 +94,7 @@ defmodule BerrypodWeb.CheckoutController do
 
         conn
         |> put_flash(:error, "Payment setup failed. Please try again.")
-        |> redirect(to: ~p"/cart")
+        |> redirect(to: R.cart())
 
       {:error, reason} ->
         Logger.error("Stripe session creation failed: #{inspect(reason)}")
@@ -104,7 +102,7 @@ defmodule BerrypodWeb.CheckoutController do
 
         conn
         |> put_flash(:error, "Payment setup failed. Please try again.")
-        |> redirect(to: ~p"/cart")
+        |> redirect(to: R.cart())
     end
   end
 

lib/berrypod_web/controllers/contact_controller.ex

@@ -13,17 +13,17 @@ defmodule BerrypodWeb.ContactController do
       {:ok, _} ->
         conn
         |> put_flash(:info, "Message sent! We'll get back to you soon.")
-        |> redirect(to: ~p"/contact")
+        |> redirect(to: R.contact())
 
       {:error, :invalid_params} ->
         conn
         |> put_flash(:error, "Please fill in all required fields.")
-        |> redirect(to: ~p"/contact")
+        |> redirect(to: R.contact())
 
       {:error, _} ->
         conn
         |> put_flash(:error, "Sorry, something went wrong. Please try again.")
-        |> redirect(to: ~p"/contact")
+        |> redirect(to: R.contact())
     end
   end
 end

lib/berrypod_web/controllers/order_lookup_controller.ex

@@ -19,7 +19,7 @@ defmodule BerrypodWeb.OrderLookupController do
         :error,
         "No orders found for that address. Make sure you use the same email you checked out with."
       )
-      |> redirect(to: ~p"/contact")
+      |> redirect(to: R.contact())
     else
       token = generate_token(email)
       link = BerrypodWeb.Endpoint.url() <> ~p"/orders/verify/#{token}"
@@ -30,14 +30,14 @@ defmodule BerrypodWeb.OrderLookupController do
         :info,
         "We've sent a link to your email address. It'll expire after an hour."
       )
-      |> redirect(to: ~p"/contact")
+      |> redirect(to: R.contact())
     end
   end
 
   def lookup(conn, _params) do
     conn
     |> put_flash(:error, "Please enter your email address.")
-    |> redirect(to: ~p"/contact")
+    |> redirect(to: R.contact())
   end
 
   def verify(conn, %{"token" => token}) do
@@ -45,17 +45,17 @@ defmodule BerrypodWeb.OrderLookupController do
       {:ok, email} ->
         conn
         |> put_session(:order_lookup_email, email)
-        |> redirect(to: ~p"/orders")
+        |> redirect(to: R.orders())
 
       {:error, :expired} ->
         conn
         |> put_flash(:error, "That link has expired. Please request a new one.")
-        |> redirect(to: ~p"/contact")
+        |> redirect(to: R.contact())
 
       {:error, _} ->
         conn
         |> put_flash(:error, "That link is invalid.")
-        |> redirect(to: ~p"/contact")
+        |> redirect(to: R.contact())
     end
   end
 

lib/berrypod_web/controllers/seo_controller.ex

@@ -2,6 +2,7 @@ defmodule BerrypodWeb.SeoController do
   use BerrypodWeb, :controller
 
   alias Berrypod.{Pages, Products}
+  alias BerrypodWeb.R
 
   def robots(conn, _params) do
     base = BerrypodWeb.Endpoint.url()
@@ -29,23 +30,23 @@ defmodule BerrypodWeb.SeoController do
     categories = Products.list_categories()
 
     static_pages = [
-      {"/", "daily", "1.0"},
+      {R.home(), "daily", "1.0"},
-      {"/collections/all", "daily", "0.9"},
+      {R.collection("all"), "daily", "0.9"},
-      {"/about", "monthly", "0.5"},
+      {R.about(), "monthly", "0.5"},
-      {"/contact", "monthly", "0.5"},
+      {R.contact(), "monthly", "0.5"},
-      {"/delivery", "monthly", "0.5"},
+      {R.delivery(), "monthly", "0.5"},
-      {"/privacy", "monthly", "0.3"},
+      {R.privacy(), "monthly", "0.3"},
-      {"/terms", "monthly", "0.3"}
+      {R.terms(), "monthly", "0.3"}
     ]
 
     category_pages =
       Enum.map(categories, fn cat ->
-        {"/collections/#{cat.slug}", "daily", "0.8"}
+        {R.collection(cat.slug), "daily", "0.8"}
       end)
 
     product_pages =
       Enum.map(products, fn product ->
-        {"/products/#{product.slug}", "weekly", "0.9"}
+        {R.product(product.slug), "weekly", "0.9"}
       end)
 
     custom_pages =

lib/berrypod_web/live/admin/product_show.ex

@@ -4,6 +4,7 @@ defmodule BerrypodWeb.Admin.ProductShow do
   alias Berrypod.Products
   alias Berrypod.Products.{Product, ProductImage, ProductVariant}
   alias Berrypod.Cart
+  alias BerrypodWeb.R
 
   @impl true
   def mount(%{"id" => id}, _session, socket) do
@@ -109,7 +110,7 @@ defmodule BerrypodWeb.Admin.ProductShow do
           <.icon name="hero-arrow-top-right-on-square-mini" class="size-4" />
         </.external_link>
         <.link
-          navigate={~p"/products/#{@product.slug}"}
+          navigate={R.product(@product.slug)}
           class="admin-btn admin-btn-ghost admin-btn-sm"
         >
           View on shop <.icon name="hero-arrow-top-right-on-square-mini" class="size-4" />

lib/berrypod_web/live/admin/settings.ex

@@ -18,7 +18,15 @@ defmodule BerrypodWeb.Admin.Settings do
      |> assign(:from_address_status, :idle)
      |> assign(:signing_secret_status, :idle)
      |> assign_stripe_state()
-     |> assign_products_state()}
+     |> assign_products_state()
+     |> assign_url_prefixes()}
+  end
+
+  defp assign_url_prefixes(socket) do
+    socket
+    |> assign(:products_prefix, Settings.get_url_prefix(:products))
+    |> assign(:collections_prefix, Settings.get_url_prefix(:collections))
+    |> assign(:prefix_status, :idle)
   end
 
   # -- Stripe assigns --
@@ -117,6 +125,51 @@ defmodule BerrypodWeb.Admin.Settings do
     end
   end
 
+  # -- Events: URL prefixes --
+
+  def handle_event("change_prefix", _params, socket) do
+    {:noreply, assign(socket, :prefix_status, :idle)}
+  end
+
+  def handle_event("save_prefixes", %{"prefixes" => params}, socket) do
+    products_prefix = params["products"] || ""
+    collections_prefix = params["collections"] || ""
+
+    errors = []
+
+    # Update products prefix if changed
+    errors =
+      if products_prefix != socket.assigns.products_prefix do
+        case Settings.update_url_prefix(:products, products_prefix) do
+          {:ok, _} -> errors
+          {:error, reason} -> [{:products, reason} | errors]
+        end
+      else
+        errors
+      end
+
+    # Update collections prefix if changed
+    errors =
+      if collections_prefix != socket.assigns.collections_prefix do
+        case Settings.update_url_prefix(:collections, collections_prefix) do
+          {:ok, _} -> errors
+          {:error, reason} -> [{:collections, reason} | errors]
+        end
+      else
+        errors
+      end
+
+    if errors == [] do
+      {:noreply,
+       socket
+       |> assign_url_prefixes()
+       |> assign(:prefix_status, :saved)}
+    else
+      error_message = format_prefix_errors(errors)
+      {:noreply, put_flash(socket, :error, error_message)}
+    end
+  end
+
   # -- Events: Stripe --
 
   def handle_event("connect_stripe", %{"stripe" => %{"api_key" => api_key}}, socket) do
@@ -388,6 +441,67 @@ defmodule BerrypodWeb.Admin.Settings do
           </form>
         </div>
       </section>
+
+      <%!-- URL prefixes --%>
+      <section class="admin-section">
+        <h2 class="admin-section-title">URL prefixes</h2>
+        <p class="admin-section-desc">
+          Customise the URL structure for products and collections.
+          Old URLs will automatically redirect to the new ones.
+        </p>
+        <div class="admin-section-body">
+          <form
+            phx-change="change_prefix"
+            phx-submit="save_prefixes"
+            class="admin-stack"
+          >
+            <div class="admin-row admin-row-lg">
+              <label class="admin-label admin-label-inline" for="prefix-products">
+                Products
+              </label>
+              <div class="admin-row admin-row-sm">
+                <span class="admin-text-secondary">/</span>
+                <.input
+                  name="prefixes[products]"
+                  id="prefix-products"
+                  value={@products_prefix}
+                  placeholder="products"
+                  pattern="[a-z0-9-]+"
+                />
+                <span class="admin-text-secondary">/</span>
+                <span class="admin-text-tertiary">product-slug</span>
+              </div>
+            </div>
+
+            <div class="admin-row admin-row-lg">
+              <label class="admin-label admin-label-inline" for="prefix-collections">
+                Collections
+              </label>
+              <div class="admin-row admin-row-sm">
+                <span class="admin-text-secondary">/</span>
+                <.input
+                  name="prefixes[collections]"
+                  id="prefix-collections"
+                  value={@collections_prefix}
+                  placeholder="collections"
+                  pattern="[a-z0-9-]+"
+                />
+                <span class="admin-text-secondary">/</span>
+                <span class="admin-text-tertiary">collection-slug</span>
+              </div>
+            </div>
+
+            <p class="admin-help-text">
+              Use only lowercase letters, numbers, and hyphens.
+            </p>
+
+            <div class="admin-form-actions-sm">
+              <.button phx-disable-with="Saving...">Save</.button>
+              <.inline_feedback status={@prefix_status} />
+            </div>
+          </form>
+        </div>
+      </section>
     </div>
     """
   end
@@ -639,4 +753,20 @@ defmodule BerrypodWeb.Admin.Settings do
       true -> "#{div(diff, 86400)} days ago"
     end
   end
+
+  defp format_prefix_errors(errors) do
+    Enum.map_join(errors, "; ", fn {field, reason} ->
+      field_name = if field == :products, do: "Products", else: "Collections"
+
+      message =
+        case reason do
+          :empty_prefix -> "can't be blank"
+          :invalid_format -> "must contain only letters, numbers, and hyphens"
+          :reserved_prefix -> "is reserved"
+          _ -> "is invalid"
+        end
+
+      "#{field_name} prefix #{message}"
+    end)
+  end
 end

lib/berrypod_web/live/shop/pages/checkout_success.ex

@@ -8,6 +8,7 @@ defmodule BerrypodWeb.Shop.Pages.CheckoutSuccess do
   import Phoenix.LiveView, only: [connected?: 1, redirect: 2]
 
   alias Berrypod.{Analytics, Orders, Pages}
+  alias BerrypodWeb.R
 
   def init(socket, %{"session_id" => session_id}, _uri) do
     order = Orders.get_order_by_stripe_session(session_id)
@@ -21,7 +22,7 @@ defmodule BerrypodWeb.Shop.Pages.CheckoutSuccess do
     if order && connected?(socket) && socket.assigns[:analytics_visitor_hash] do
       attrs =
         BerrypodWeb.AnalyticsHook.attrs(socket)
-        |> Map.merge(%{pathname: "/checkout/success", revenue: order.total})
+        |> Map.merge(%{pathname: R.checkout_success(), revenue: order.total})
 
       Analytics.track_event("purchase", attrs)
     end
@@ -54,7 +55,7 @@ defmodule BerrypodWeb.Shop.Pages.CheckoutSuccess do
   end
 
   def init(socket, _params, _uri) do
-    {:redirect, redirect(socket, to: "/")}
+    {:redirect, redirect(socket, to: R.home())}
   end
 
   def handle_params(_params, _uri, socket) do

lib/berrypod_web/live/shop/pages/collection.ex

@@ -7,6 +7,7 @@ defmodule BerrypodWeb.Shop.Pages.Collection do
   import Phoenix.LiveView, only: [push_patch: 2, push_navigate: 2, put_flash: 3]
 
   alias Berrypod.{Pages, Pagination, Products}
+  alias BerrypodWeb.R
 
   @sort_options [
     {"featured", "Featured"},
@@ -29,6 +30,11 @@ defmodule BerrypodWeb.Shop.Pages.Collection do
     {:noreply, socket}
   end
 
+  # When accessed via custom URL (e.g. /shop) without a collection slug, show all products
+  def handle_params(params, uri, socket) when not is_map_key(params, "slug") do
+    handle_params(Map.put(params, "slug", "all"), uri, socket)
+  end
+
   def handle_params(%{"slug" => slug} = params, _uri, socket) do
     sort = params["sort"] || "featured"
     page_num = Pagination.parse_page(params)
@@ -39,7 +45,7 @@ defmodule BerrypodWeb.Shop.Pages.Collection do
           socket
           |> assign(:page_title, title)
           |> assign(:page_description, collection_description(title))
-          |> assign(:og_url, BerrypodWeb.Endpoint.url() <> "/collections/#{slug}")
+          |> assign(:og_url, R.url(R.collection(slug)))
           |> assign(:collection_title, title)
           |> assign(:collection_slug, slug)
           |> assign(:current_category, category)
@@ -53,7 +59,7 @@ defmodule BerrypodWeb.Shop.Pages.Collection do
         socket =
           socket
           |> put_flash(:error, "Collection not found")
-          |> push_navigate(to: "/collections/all")
+          |> push_navigate(to: R.collection("all"))
 
         {:noreply, socket}
     end
@@ -67,7 +73,7 @@ defmodule BerrypodWeb.Shop.Pages.Collection do
         category -> category.slug
       end
 
-    {:noreply, push_patch(socket, to: "/collections/#{slug}?sort=#{sort}")}
+    {:noreply, push_patch(socket, to: R.collection(slug) <> "?sort=#{sort}")}
   end
 
   def handle_event(_event, _params, _socket), do: :cont

lib/berrypod_web/live/shop/pages/contact.ex

@@ -7,6 +7,7 @@ defmodule BerrypodWeb.Shop.Pages.Contact do
   import Phoenix.LiveView, only: [push_navigate: 2, put_flash: 3]
 
   alias Berrypod.{ContactNotifier, Orders}
+  alias BerrypodWeb.R
   alias Berrypod.Orders.OrderNotifier
   alias Berrypod.Pages
   alias BerrypodWeb.OrderLookupController
@@ -21,7 +22,7 @@ defmodule BerrypodWeb.Shop.Pages.Contact do
         :page_description,
         "Get in touch with us for any questions or help with your order."
       )
-      |> assign(:og_url, BerrypodWeb.Endpoint.url() <> "/contact")
+      |> assign(:og_url, R.url(R.contact()))
       |> assign(:tracking_state, :idle)
       |> assign(:page, page)
 
@@ -54,7 +55,7 @@ defmodule BerrypodWeb.Shop.Pages.Contact do
         {:noreply,
          socket
          |> put_flash(:info, "Message sent! We'll get back to you soon.")
-         |> push_navigate(to: "/contact")}
+         |> push_navigate(to: R.contact())}
 
       {:error, :invalid_params} ->
         {:noreply, put_flash(socket, :error, "Please fill in all required fields.")}

lib/berrypod_web/live/shop/pages/content.ex

@@ -9,6 +9,7 @@ defmodule BerrypodWeb.Shop.Pages.Content do
   alias Berrypod.LegalPages
   alias Berrypod.Pages
   alias Berrypod.Theme.PreviewData
+  alias BerrypodWeb.R
 
   def init(socket, _params, _uri) do
     # Content pages load in handle_params based on live_action
@@ -38,7 +39,7 @@ defmodule BerrypodWeb.Shop.Pages.Content do
       %{
         page_title: "About",
         page_description: "Your story goes here – this is sample content for the demo shop",
-        og_url: BerrypodWeb.Endpoint.url() <> "/about"
+        og_url: R.url(R.about())
       },
       PreviewData.about_content()
     }
@@ -49,7 +50,7 @@ defmodule BerrypodWeb.Shop.Pages.Content do
       %{
         page_title: "Delivery & returns",
         page_description: "Everything you need to know about shipping and returns.",
-        og_url: BerrypodWeb.Endpoint.url() <> "/delivery"
+        og_url: R.url(R.delivery())
       },
       LegalPages.delivery_content()
     }
@@ -60,7 +61,7 @@ defmodule BerrypodWeb.Shop.Pages.Content do
       %{
         page_title: "Privacy policy",
         page_description: "How we handle your personal information.",
-        og_url: BerrypodWeb.Endpoint.url() <> "/privacy"
+        og_url: R.url(R.privacy())
       },
       LegalPages.privacy_content()
     }
@@ -71,7 +72,7 @@ defmodule BerrypodWeb.Shop.Pages.Content do
       %{
         page_title: "Terms of service",
         page_description: "The terms and conditions governing purchases from our shop.",
-        og_url: BerrypodWeb.Endpoint.url() <> "/terms"
+        og_url: R.url(R.terms())
       },
       LegalPages.terms_content()
     }

lib/berrypod_web/live/shop/pages/order_detail.ex

@@ -7,6 +7,7 @@ defmodule BerrypodWeb.Shop.Pages.OrderDetail do
   import Phoenix.LiveView, only: [push_navigate: 2]
 
   alias Berrypod.{Orders, Pages}
+  alias BerrypodWeb.R
   alias Berrypod.Products
   alias Berrypod.Products.ProductImage
 
@@ -54,7 +55,7 @@ defmodule BerrypodWeb.Shop.Pages.OrderDetail do
 
       {:noreply, socket}
     else
-      {:noreply, push_navigate(socket, to: "/orders")}
+      {:noreply, push_navigate(socket, to: R.orders())}
     end
   end
 

lib/berrypod_web/live/shop/pages/product.ex

@@ -7,6 +7,7 @@ defmodule BerrypodWeb.Shop.Pages.Product do
   import Phoenix.LiveView, only: [connected?: 1, push_navigate: 2]
 
   alias Berrypod.{Analytics, Cart, Pages}
+  alias BerrypodWeb.R
   alias Berrypod.Images.Optimizer
   alias Berrypod.Products
   alias Berrypod.Products.{Product, ProductImage}
@@ -15,11 +16,11 @@ defmodule BerrypodWeb.Shop.Pages.Product do
     # Try to get product by slug, including discontinued products
     case Products.get_product_by_slug(slug, preload: [:variants, :images]) do
       nil ->
-        {:noreply, push_navigate(socket, to: "/collections/all")}
+        {:noreply, push_navigate(socket, to: R.collection("all"))}
 
       %{visible: false, status: status} when status != "discontinued" ->
         # Hidden but not discontinued - redirect away
-        {:noreply, push_navigate(socket, to: "/collections/all")}
+        {:noreply, push_navigate(socket, to: R.collection("all"))}
 
       product ->
         all_images =
@@ -42,12 +43,12 @@ defmodule BerrypodWeb.Shop.Pages.Product do
         if connected?(socket) and socket.assigns[:analytics_visitor_hash] do
           Analytics.track_event(
             "product_view",
-            Map.put(BerrypodWeb.AnalyticsHook.attrs(socket), :pathname, "/products/#{slug}")
+            Map.put(BerrypodWeb.AnalyticsHook.attrs(socket), :pathname, R.product(slug))
           )
         end
 
         base = BerrypodWeb.Endpoint.url()
-        og_url = base <> "/products/#{slug}"
+        og_url = R.url(R.product(slug))
         og_image = og_image_url(all_images)
 
         page = Pages.get_page("pdp")
@@ -107,7 +108,7 @@ defmodule BerrypodWeb.Shop.Pages.Product do
           Map.put(
             BerrypodWeb.AnalyticsHook.attrs(socket),
             :pathname,
-            "/products/#{socket.assigns.product.slug}"
+            R.product(socket.assigns.product.slug)
           )
         )
       end
@@ -204,7 +205,7 @@ defmodule BerrypodWeb.Shop.Pages.Product do
         opt_type.values
         |> Enum.map(fn value ->
           params = Map.put(selected_options, opt_type.name, value.title)
-          {value.title, "/products/#{slug}?#{URI.encode_query(params)}"}
+          {value.title, R.product(slug) <> "?#{URI.encode_query(params)}"}
         end)
         |> Map.new()
 
@@ -278,7 +279,7 @@ defmodule BerrypodWeb.Shop.Pages.Product do
 
   # ── JSON-LD and meta helpers ─────────────────────────────────────────
 
-  defp product_json_ld(product, url, image, base) do
+  defp product_json_ld(product, url, image, _base) do
     category_slug =
       if product.category,
         do: product.category |> String.downcase() |> String.replace(" ", "-"),
@@ -286,13 +287,13 @@ defmodule BerrypodWeb.Shop.Pages.Product do
 
     breadcrumbs =
       [
-        %{"@type" => "ListItem", "position" => 1, "name" => "Home", "item" => base <> "/"},
+        %{"@type" => "ListItem", "position" => 1, "name" => "Home", "item" => R.url(R.home())},
         product.category &&
           %{
             "@type" => "ListItem",
             "position" => 2,
             "name" => product.category,
-            "item" => base <> "/collections/#{category_slug}"
+            "item" => R.url(R.collection(category_slug))
           },
         %{
           "@type" => "ListItem",

lib/berrypod_web/live/shop/pages/search.ex

@@ -7,6 +7,7 @@ defmodule BerrypodWeb.Shop.Pages.Search do
   import Phoenix.LiveView, only: [push_patch: 2]
 
   alias Berrypod.{Pages, Search}
+  alias BerrypodWeb.R
 
   def init(socket, _params, _uri) do
     page = Pages.get_page("search")
@@ -32,7 +33,7 @@ defmodule BerrypodWeb.Shop.Pages.Search do
   end
 
   def handle_event("search_submit", %{"q" => query}, socket) do
-    {:noreply, push_patch(socket, to: "/search?q=#{query}")}
+    {:noreply, push_patch(socket, to: R.search() <> "?q=#{query}")}
   end
 
   def handle_event(_event, _params, _socket), do: :cont

lib/berrypod_web/page_editor_hook.ex

@@ -270,10 +270,11 @@ defmodule BerrypodWeb.PageEditorHook do
               end
 
             # Initialize settings form from current page if not already set
-            # Only custom pages have editable settings (meta_description, published, etc.)
+            # Init settings form for pages with editable settings
+            # Custom pages: all settings editable
+            # System pages: only url_slug editable (except home)
             socket =
-              if is_nil(socket.assigns[:settings_form]) && socket.assigns[:page] &&
+              if is_nil(socket.assigns[:settings_form]) && socket.assigns[:page] do
-                   socket.assigns.page[:type] == "custom" do
                 init_settings_form(socket)
               else
                 socket
@@ -930,14 +931,14 @@ defmodule BerrypodWeb.PageEditorHook do
   # Catch-all for unknown theme actions
   defp handle_theme_action(_action, _params, socket), do: {:halt, socket}
 
-  # ── Settings editing actions (custom page settings) ────────────────
+  # ── Settings editing actions (page settings) ────────────────
 
   # Validate page settings form (live as-you-type)
   defp handle_settings_action("validate_page", %{"page" => params}, socket) do
     page = socket.assigns.page
 
-    # Only allow editing custom pages
+    # Allow editing for custom pages (all fields) or system pages (url_slug only)
-    if page && page.type == "custom" do
+    if page && page.type in ["custom", "system"] do
       socket =
         socket
         |> assign(:settings_form, params)
@@ -954,43 +955,127 @@ defmodule BerrypodWeb.PageEditorHook do
   defp handle_settings_action("save_page", %{"page" => params}, socket) do
     page = socket.assigns.page
 
-    # Only allow editing custom pages
+    cond do
-    if page && page.type == "custom" do
+      # Custom pages: save all settings including url_slug
-      # Normalize checkbox fields (unchecked checkboxes aren't sent)
+      page && page.type == "custom" ->
-      params =
+        save_custom_page_settings(socket, page, params)
-        params
-        |> Map.put_new("published", "false")
-        |> Map.put_new("show_in_nav", "false")
 
-      old_slug = page.slug
+      # System pages with url_prefix (collections, products, orders)
+      page && page.type == "system" && params["url_prefix"] ->
+        save_system_page_url_prefix(socket, page, params["url_prefix"])
 
-      # Fetch the Page struct from DB (assigns.page may be a map from cache)
+      # System pages: only save url_slug (other fields are read-only)
-      page_struct = Pages.get_page_struct(page.slug)
+      page && page.type == "system" && params["url_slug"] ->
+        save_system_page_url_slug(socket, page, params["url_slug"])
 
-      case Pages.update_custom_page(page_struct, params) do
+      true ->
-        {:ok, updated_page} ->
+        {:halt, socket}
-          # Reinitialize form from saved page
+    end
+  end
+
+  defp handle_settings_action(_action, _params, socket), do: {:halt, socket}
+
+  defp save_custom_page_settings(socket, page, params) do
+    # Normalize checkbox fields (unchecked checkboxes aren't sent)
+    params =
+      params
+      |> Map.put_new("published", "false")
+      |> Map.put_new("show_in_nav", "false")
+
+    old_slug = page.slug
+
+    # Fetch the Page struct from DB (assigns.page may be a map from cache)
+    page_struct = Pages.get_page_struct(page.slug)
+
+    # Handle url_slug change separately to ensure redirects are created
+    url_slug = params["url_slug"]
+    old_url_slug = page[:url_slug]
+
+    # First update the main page settings
+    case Pages.update_custom_page(page_struct, params) do
+      {:ok, updated_page} ->
+        # If url_slug changed, handle redirect creation
+        socket =
+          if url_slug != old_url_slug do
+            Pages.update_page_url_slug(updated_page, url_slug)
+            # Reload page to get updated url_slug
+            updated_page = Pages.get_page(updated_page.slug)
+            assign(socket, :page, updated_page)
+          else
+            assign(socket, :page, updated_page)
+          end
+
+        socket =
+          socket
+          |> assign(:settings_form, nil)
+          |> assign(:settings_dirty, false)
+          |> assign(:settings_save_status, :saved)
+
+        # Reinit form with new page values
+        socket = init_settings_form(socket)
+
+        # If slug changed, redirect to new URL
+        socket =
+          if updated_page.slug != old_slug do
+            push_navigate(socket, to: "/#{updated_page.slug}")
+          else
+            socket
+          end
+
+        {:halt, socket}
+
+      {:error, _changeset} ->
+        socket = assign(socket, :settings_save_status, :error)
+        {:halt, socket}
+    end
+  end
+
+  defp save_system_page_url_slug(socket, page, url_slug) do
+    case Pages.update_page_url_slug(page.slug, url_slug) do
+      {:ok, _updated} ->
+        # Reload page from cache to get updated data
+        updated_page = Pages.get_page(page.slug)
+
+        socket =
+          socket
+          |> assign(:page, updated_page)
+          |> assign(:settings_form, nil)
+          |> assign(:settings_dirty, false)
+          |> assign(:settings_save_status, :saved)
+
+        socket = init_settings_form(socket)
+        {:halt, socket}
+
+      {:error, _} ->
+        socket = assign(socket, :settings_save_status, :error)
+        {:halt, socket}
+    end
+  end
+
+  # Save URL prefix for prefixed pages (collection, pdp, orders)
+  defp save_system_page_url_prefix(socket, page, new_prefix) do
+    # Determine the prefix type based on the page slug
+    prefix_type =
+      case page.slug do
+        "collection" -> :collections
+        "pdp" -> :products
+        "orders" -> :orders
+        "order_detail" -> :orders
+        _ -> nil
+      end
+
+    if prefix_type do
+      case Settings.update_url_prefix(prefix_type, new_prefix) do
+        {:ok, _} ->
           socket =
             socket
-            |> assign(:page, updated_page)
             |> assign(:settings_form, nil)
             |> assign(:settings_dirty, false)
             |> assign(:settings_save_status, :saved)
 
-          # Reinit form with new page values
-          socket = init_settings_form(socket)
-
-          # If slug changed, redirect to new URL
-          socket =
-            if updated_page.slug != old_slug do
-              push_navigate(socket, to: "/#{updated_page.slug}")
-            else
-              socket
-            end
-
           {:halt, socket}
 
-        {:error, _changeset} ->
+        {:error, _reason} ->
           socket = assign(socket, :settings_save_status, :error)
           {:halt, socket}
       end
@@ -999,9 +1084,6 @@ defmodule BerrypodWeb.PageEditorHook do
     end
   end
 
-  # Catch-all for unknown settings actions
-  defp handle_settings_action(_action, _params, socket), do: {:halt, socket}
-
   # --- Site tab event handlers ---
 
   defp handle_site_action("update", %{"site" => site_params}, socket) do
@@ -1266,13 +1348,33 @@ defmodule BerrypodWeb.PageEditorHook do
   defp has_settings_changed?(page, params) do
     page.title != (params["title"] || "") or
       page.slug != (params["slug"] || "") or
+      (page[:url_slug] || "") != (params["url_slug"] || "") or
       (page.meta_description || "") != (params["meta_description"] || "") or
       to_string(page.published) != (params["published"] || "false") or
       to_string(page.show_in_nav) != (params["show_in_nav"] || "false") or
       (page.nav_label || "") != (params["nav_label"] || "") or
-      to_string(page.nav_position || 0) != (params["nav_position"] || "0")
+      to_string(page.nav_position || 0) != (params["nav_position"] || "0") or
+      has_prefix_changed?(page, params)
   end
 
+  # Check if URL prefix changed for prefixed pages
+  defp has_prefix_changed?(page, params) do
+    case params["url_prefix"] do
+      nil ->
+        false
+
+      new_prefix ->
+        prefix_type = prefix_type_for_page(page.slug)
+        prefix_type != nil and BerrypodWeb.R.prefix(prefix_type) != new_prefix
+    end
+  end
+
+  defp prefix_type_for_page("collection"), do: :collections
+  defp prefix_type_for_page("pdp"), do: :products
+  defp prefix_type_for_page("orders"), do: :orders
+  defp prefix_type_for_page("order_detail"), do: :orders
+  defp prefix_type_for_page(_), do: nil
+
   # Initialize settings form from page values
   defp init_settings_form(socket) do
     page = socket.assigns.page
@@ -1280,6 +1382,7 @@ defmodule BerrypodWeb.PageEditorHook do
     form = %{
       "title" => page.title || "",
       "slug" => page.slug || "",
+      "url_slug" => page[:url_slug] || "",
       "meta_description" => page.meta_description || "",
       "published" => to_string(page.published),
       "show_in_nav" => to_string(page.show_in_nav),
@@ -1506,6 +1609,15 @@ defmodule BerrypodWeb.PageEditorHook do
   defp save_all_tabs(socket) do
     socket
     |> maybe_save_page()
+    |> maybe_save_settings()
+    |> maybe_finish_save()
+  end
+
+  # If settings save triggered a navigation, don't overwrite the socket
+  defp maybe_finish_save(%{redirected: {:live, _, _}} = socket), do: socket
+
+  defp maybe_finish_save(socket) do
+    socket
     |> maybe_save_theme()
     |> maybe_save_site()
     |> assign(:editor_save_status, :saved)
@@ -1537,6 +1649,124 @@ defmodule BerrypodWeb.PageEditorHook do
     end
   end
 
+  defp maybe_save_settings(socket) do
+    if socket.assigns[:settings_dirty] do
+      page = socket.assigns.page
+      params = socket.assigns[:settings_form] || %{}
+
+      cond do
+        # Custom pages: save all settings including url_slug
+        page && page.type == "custom" ->
+          do_save_custom_page_settings(socket, page, params)
+
+        # System pages with url_prefix (collections, products, orders)
+        page && page.type == "system" && params["url_prefix"] ->
+          do_save_system_page_url_prefix(socket, page, params["url_prefix"])
+
+        # System pages: only save url_slug
+        page && page.type == "system" && params["url_slug"] ->
+          do_save_system_page_url_slug(socket, page, params["url_slug"])
+
+        true ->
+          socket
+      end
+    else
+      socket
+    end
+  end
+
+  defp do_save_custom_page_settings(socket, page, params) do
+    params =
+      params
+      |> Map.put_new("published", "false")
+      |> Map.put_new("show_in_nav", "false")
+
+    page_struct = Pages.get_page_struct(page.slug)
+    url_slug = params["url_slug"]
+    old_url_slug = page[:url_slug]
+
+    case Pages.update_custom_page(page_struct, params) do
+      {:ok, updated_page} ->
+        if url_slug != old_url_slug do
+          Pages.update_page_url_slug(updated_page, url_slug)
+        end
+
+        updated_page = Pages.get_page(updated_page.slug)
+
+        socket
+        |> assign(:page, updated_page)
+        |> assign(:settings_form, nil)
+        |> assign(:settings_dirty, false)
+        |> init_settings_form()
+
+      {:error, _changeset} ->
+        socket
+    end
+  end
+
+  defp do_save_system_page_url_slug(socket, page, url_slug) do
+    old_url = Pages.Page.effective_url(page)
+
+    case Pages.update_page_url_slug(page.slug, url_slug) do
+      {:ok, _updated} ->
+        updated_page = Pages.get_page(page.slug)
+        new_url = Pages.Page.effective_url(updated_page)
+
+        socket =
+          socket
+          |> assign(:page, updated_page)
+          |> assign(:settings_form, nil)
+          |> assign(:settings_dirty, false)
+          |> init_settings_form()
+
+        # If URL changed, navigate to the new URL
+        if old_url != new_url do
+          push_navigate(socket, to: "/#{new_url}?edit=page")
+        else
+          socket
+        end
+
+      {:error, _reason} ->
+        socket
+    end
+  end
+
+  defp do_save_system_page_url_prefix(socket, page, new_prefix) do
+    prefix_type = prefix_type_for_page(page.slug)
+
+    if prefix_type do
+      old_prefix = BerrypodWeb.R.prefix(prefix_type)
+
+      case Settings.update_url_prefix(prefix_type, new_prefix) do
+        {:ok, _} ->
+          socket =
+            socket
+            |> assign(:settings_form, nil)
+            |> assign(:settings_dirty, false)
+
+          # If prefix changed, navigate to the new URL
+          if old_prefix != new_prefix do
+            # For collection page, navigate to /new-prefix/all
+            new_path =
+              case page.slug do
+                "collection" -> "/#{new_prefix}/all?edit=page"
+                "pdp" -> "/#{new_prefix}?edit=page"
+                _ -> "/#{new_prefix}?edit=page"
+              end
+
+            push_navigate(socket, to: new_path)
+          else
+            socket
+          end
+
+        {:error, _reason} ->
+          socket
+      end
+    else
+      socket
+    end
+  end
+
   defp maybe_save_theme(socket) do
     if socket.assigns[:theme_dirty] do
       case Settings.update_theme_settings(Map.from_struct(socket.assigns.theme_editor_settings)) do

lib/berrypod_web/page_renderer.ex

@@ -19,6 +19,7 @@ defmodule BerrypodWeb.PageRenderer do
   import BerrypodWeb.CoreComponents, only: [icon: 1, external_link: 1]
 
   alias Berrypod.Cart
+  alias BerrypodWeb.R
 
   # ── Public API ──────────────────────────────────────────────────
 
@@ -88,6 +89,7 @@ defmodule BerrypodWeb.PageRenderer do
       editor_dirty={@editor_dirty}
       theme_dirty={Map.get(assigns, :theme_dirty, false)}
       site_dirty={Map.get(assigns, :site_dirty, false)}
+      settings_dirty={Map.get(assigns, :settings_dirty, false)}
       editor_sheet_state={assigns[:editor_sheet_state] || :collapsed}
       editor_save_status={@editor_save_status}
       editor_active_tab={Map.get(assigns, :editor_active_tab, :page)}
@@ -373,14 +375,18 @@ defmodule BerrypodWeb.PageRenderer do
   defp page_settings_section(assigns) do
     form = assigns.form || %{}
     is_custom = assigns.page[:type] == "custom"
-
     page = assigns.page
 
+    # Determine URL structure for this page
+    url_info = compute_url_info(page, form)
+
     assigns =
       assigns
       |> assign(:is_custom, is_custom)
+      |> assign(:url_info, url_info)
       |> assign(:form_title, form["title"] || page[:title] || "")
       |> assign(:form_slug, form["slug"] || page[:slug] || "")
+      |> assign(:form_url_slug, form["url_slug"] || page[:url_slug] || "")
       |> assign(:form_meta, form["meta_description"] || page[:meta_description] || "")
       |> assign(:form_published, form_checked?(form, "published", page[:published]))
       |> assign(:form_show_in_nav, form_checked?(form, "show_in_nav", page[:show_in_nav]))
@@ -415,22 +421,8 @@ defmodule BerrypodWeb.PageRenderer do
           />
         </div>
 
-        <div class="page-settings-field">
+        <%!-- URL editor - different layouts based on page type --%>
-          <label class="page-settings-label" for="page-settings-slug">URL slug</label>
+        <.url_editor url_info={@url_info} is_custom={@is_custom} form_slug={@form_slug} />
-          <div class="page-settings-slug-input">
-            <span class="page-settings-slug-prefix">/</span>
-            <input
-              type="text"
-              id="page-settings-slug"
-              name="page[slug]"
-              value={@form_slug}
-              class={["admin-input", !@is_custom && "admin-input-disabled"]}
-              pattern="[a-z0-9-]+"
-              disabled={!@is_custom}
-              title={if !@is_custom, do: "System page URLs cannot be changed", else: nil}
-            />
-          </div>
-        </div>
 
         <div class="page-settings-field">
           <label class="page-settings-label" for="page-settings-meta">Meta description</label>
@@ -497,6 +489,166 @@ defmodule BerrypodWeb.PageRenderer do
     """
   end
 
+  # URL editor component - renders the right UI based on page type
+  attr :url_info, :map, required: true
+  attr :is_custom, :boolean, required: true
+  attr :form_slug, :string, required: true
+
+  defp url_editor(%{url_info: %{type: :none}} = assigns) do
+    # Home page - no URL field
+    ~H""
+  end
+
+  defp url_editor(%{url_info: %{type: :simple}} = assigns) do
+    # Simple single-segment URL (about, contact, cart, custom pages, etc.)
+    ~H"""
+    <div class="page-settings-field">
+      <label class="page-settings-label" for="page-settings-url">URL</label>
+      <div class="url-editor">
+        <span class="url-editor-slash">/</span>
+        <input
+          type="text"
+          id="page-settings-url"
+          name={@url_info.field_name}
+          value={@url_info.value}
+          class="admin-input url-editor-input"
+          pattern="[a-z0-9-]+"
+          phx-debounce="500"
+        />
+      </div>
+      <p :if={@url_info.hint} class="page-settings-hint">{@url_info.hint}</p>
+    </div>
+    """
+  end
+
+  defp url_editor(%{url_info: %{type: :prefixed}} = assigns) do
+    # Prefixed URL (collections, products, orders)
+    ~H"""
+    <div class="page-settings-field">
+      <label class="page-settings-label">URL</label>
+      <div class="url-editor url-editor-segmented">
+        <span class="url-editor-slash">/</span>
+        <input
+          type="text"
+          id="page-settings-prefix"
+          name="page[url_prefix]"
+          value={@url_info.prefix}
+          class="admin-input url-editor-input url-editor-prefix"
+          pattern="[a-z0-9-]+"
+          phx-debounce="500"
+        />
+        <span class="url-editor-slash">/</span>
+        <span class="url-editor-fixed">{@url_info.suffix}</span>
+      </div>
+      <p :if={@url_info.hint} class="page-settings-hint">{@url_info.hint}</p>
+    </div>
+    """
+  end
+
+  defp url_editor(%{url_info: %{type: :fixed}} = assigns) do
+    # Fixed URL (checkout/success, etc.)
+    ~H"""
+    <div class="page-settings-field">
+      <label class="page-settings-label">URL</label>
+      <div class="url-editor">
+        <span class="url-editor-fixed-path">{@url_info.path}</span>
+      </div>
+    </div>
+    """
+  end
+
+  # Compute URL info for a page based on its type
+  # Uses generic placeholders for prefixed pages since we're editing the template
+  defp compute_url_info(page, form) do
+    slug = page[:slug]
+
+    case slug do
+      # Home - no URL field
+      "home" ->
+        %{type: :none}
+
+      # Prefixed pages - show editable prefix + placeholder suffix
+      "collection" ->
+        prefix = form["url_prefix"] || R.prefix(:collections)
+
+        %{
+          type: :prefixed,
+          prefix: prefix,
+          prefix_type: :collections,
+          suffix: ":slug",
+          hint: "Changing the prefix affects all collection pages"
+        }
+
+      "pdp" ->
+        prefix = form["url_prefix"] || R.prefix(:products)
+
+        %{
+          type: :prefixed,
+          prefix: prefix,
+          prefix_type: :products,
+          suffix: ":id",
+          hint: "Changing the prefix affects all product pages"
+        }
+
+      "orders" ->
+        prefix = form["url_prefix"] || R.prefix(:orders)
+
+        %{
+          type: :prefixed,
+          prefix: prefix,
+          prefix_type: :orders,
+          suffix: ":number",
+          hint: "Changing the prefix affects all order pages"
+        }
+
+      "order_detail" ->
+        prefix = form["url_prefix"] || R.prefix(:orders)
+
+        %{
+          type: :prefixed,
+          prefix: prefix,
+          prefix_type: :orders,
+          suffix: ":number",
+          hint: "Changing the prefix affects all order pages"
+        }
+
+      # Fixed paths
+      "checkout_success" ->
+        %{type: :fixed, path: "/checkout/success"}
+
+      "error" ->
+        %{type: :none}
+
+      # Simple system pages and custom pages
+      _ ->
+        if page[:type] == "custom" do
+          # Custom page - edit the slug directly
+          value = form["slug"] || slug
+
+          %{
+            type: :simple,
+            value: value,
+            field_name: "page[slug]",
+            hint: nil
+          }
+        else
+          # System page - edit the url_slug override
+          value = form["url_slug"] || page[:url_slug] || ""
+
+          %{
+            type: :simple,
+            value: value,
+            field_name: "page[url_slug]",
+            hint:
+              if(value == "",
+                do: "Default: /#{slug}",
+                else: "Old URL /#{slug} will redirect here"
+              )
+          }
+        end
+    end
+  end
+
   defp form_checked?(form, key, page_value) when is_map(form) do
     case form[key] do
       "true" -> true
@@ -842,7 +994,7 @@ defmodule BerrypodWeb.PageRenderer do
         </nav>
 
         <form
-          action={~p"/collections/#{@current_slug || "all"}"}
+          action={R.collection(@current_slug || "all")}
           method="get"
           phx-change="sort_changed"
         >
@@ -890,14 +1042,14 @@ defmodule BerrypodWeb.PageRenderer do
       <.shop_pagination
         :if={assigns[:pagination] && assigns[:pagination].total_pages > 1}
         page={assigns[:pagination]}
-        base_path={~p"/collections/#{@collection_slug}"}
+        base_path={R.collection(@collection_slug)}
         params={@sort_params}
       />
 
       <%= if (assigns[:products] || []) == [] do %>
         <div class="collection-empty">
           <p>No products found in this collection.</p>
-          <.link patch={~p"/collections/all"} class="collection-empty-link">
+          <.link patch={R.collection("all")} class="collection-empty-link">
             View all products
           </.link>
         </div>
@@ -1075,7 +1227,7 @@ defmodule BerrypodWeb.PageRenderer do
       <% end %>
 
       <div class="checkout-actions">
-        <.shop_link_button href="/collections/all" class="checkout-cta">
+        <.shop_link_button href={R.collection("all")} class="checkout-cta">
           Continue shopping
         </.shop_link_button>
       </div>
@@ -1104,7 +1256,7 @@ defmodule BerrypodWeb.PageRenderer do
           Please wait while we confirm your payment. This usually takes a few seconds.
         </p>
         <p class="checkout-pending-hint">
-          If this page doesn't update, please <.link patch="/contact" class="checkout-contact-link">contact us</.link>.
+          If this page doesn't update, please <.link patch={R.contact()} class="checkout-contact-link">contact us</.link>.
         </p>
       </div>
     <% end %>
@@ -1129,20 +1281,20 @@ defmodule BerrypodWeb.PageRenderer do
         <div class="orders-empty">
           <p>This link has expired or is invalid.</p>
           <p class="orders-empty-hint">
-            Head back to the <.link patch="/contact">contact page</.link> to request a new one.
+            Head back to the <.link patch={R.contact()}>contact page</.link> to request a new one.
           </p>
         </div>
       <% assigns[:orders] == [] -> %>
         <div class="orders-empty">
           <p>No orders found for that email address.</p>
           <p class="orders-empty-hint">
-            If something doesn't look right, <.link patch="/contact">get in touch</.link>.
+            If something doesn't look right, <.link patch={R.contact()}>get in touch</.link>.
           </p>
         </div>
       <% true -> %>
         <div class="orders-list">
           <%= for order <- assigns[:orders] do %>
-            <.link patch={"/orders/#{order.order_number}"} class="order-summary-card">
+            <.link patch={R.order(order.order_number)} class="order-summary-card">
               <div class="order-summary-top">
                 <div>
                   <p class="order-summary-number">{order.order_number}</p>
@@ -1184,7 +1336,7 @@ defmodule BerrypodWeb.PageRenderer do
     ~H"""
     <%= if assigns[:order] do %>
       <div class="order-detail-header">
-        <.link patch="/orders" class="order-detail-back">&larr; Back to orders</.link>
+        <.link patch={R.orders()} class="order-detail-back">&larr; Back to orders</.link>
         <h1 class="checkout-heading" style="margin-top: 1.5rem;">{assigns[:order].order_number}</h1>
         <p class="checkout-meta">{Calendar.strftime(assigns[:order].inserted_at, "%-d %B %Y")}</p>
         <span class={"order-status-badge order-status-badge-#{assigns[:order].fulfilment_status} order-status-badge-lg"}>
@@ -1239,7 +1391,7 @@ defmodule BerrypodWeb.PageRenderer do
               <div>
                 <%= if info && info.slug do %>
                   <.link
-                    patch={"/products/#{info.slug}"}
+                    patch={R.product(info.slug)}
                     class="checkout-item-name checkout-item-link"
                   >
                     {item.product_name}
@@ -1286,7 +1438,7 @@ defmodule BerrypodWeb.PageRenderer do
       <% end %>
 
       <div class="checkout-actions">
-        <.shop_link_button href="/collections/all">Continue shopping</.shop_link_button>
+        <.shop_link_button href={R.collection("all")}>Continue shopping</.shop_link_button>
       </div>
     <% end %>
     """
@@ -1298,7 +1450,7 @@ defmodule BerrypodWeb.PageRenderer do
     ~H"""
     <.page_title text="Search" />
 
-    <form action="/search" method="get" phx-submit="search_submit" class="search-page-form">
+    <form action={R.search()} method="get" phx-submit="search_submit" class="search-page-form">
       <input
         type="search"
         name="q"
@@ -1329,7 +1481,7 @@ defmodule BerrypodWeb.PageRenderer do
       <%= if (assigns[:search_page_query] || "") != "" do %>
         <div class="collection-empty">
           <p>No products found for &ldquo;{assigns[:search_page_query]}&rdquo;</p>
-          <.link patch="/collections/all" class="collection-empty-link">Browse all products</.link>
+          <.link patch={R.collection("all")} class="collection-empty-link">Browse all products</.link>
         </div>
       <% end %>
     <% end %>
@@ -1469,7 +1621,7 @@ defmodule BerrypodWeb.PageRenderer do
     slug = cat |> String.downcase() |> String.replace(" ", "-")
 
     [
-      %{label: cat, page: "collection", href: "/collections/#{slug}"},
+      %{label: cat, page: "collection", href: R.collection(slug)},
       %{label: title, current: true}
     ]
   end
@@ -1480,8 +1632,8 @@ defmodule BerrypodWeb.PageRenderer do
 
   defp breadcrumb_items(_), do: []
 
-  defp collection_path(slug, "featured"), do: ~p"/collections/#{slug}"
+  defp collection_path(slug, "featured"), do: R.collection(slug)
-  defp collection_path(slug, sort), do: ~p"/collections/#{slug}?sort=#{sort}"
+  defp collection_path(slug, sort), do: R.collection(slug) <> "?sort=#{sort}"
 
   # Resolves an image_id to a full URL for blocks that need a single URL (e.g. background-image).
   defp resolve_block_image_url(image_id) do

lib/berrypod_web/plugs/broken_url_tracker.ex

@@ -18,7 +18,7 @@ defmodule BerrypodWeb.Plugs.BrokenUrlTracker do
   def call(conn, {router, router_opts}) do
     router.call(conn, router_opts)
   rescue
-    e in Phoenix.Router.NoRouteError ->
+    e in [Phoenix.Router.NoRouteError, BerrypodWeb.NotFoundError] ->
       unless static_path?(conn.request_path) do
         prior_hits = Berrypod.Analytics.count_pageviews_for_path(conn.request_path)
         Berrypod.Redirects.record_broken_url(conn.request_path, prior_hits)

test/berrypod/pages_test.exs

@@ -605,6 +605,65 @@ defmodule Berrypod.PagesTest do
     end
   end
 
+  describe "update_page_url_slug/2" do
+    test "updates url_slug for system page" do
+      {:ok, updated} = Pages.update_page_url_slug("about", "our-story")
+
+      assert updated.url_slug == "our-story"
+      assert updated.slug == "about"
+    end
+
+    test "creates redirect when url_slug changes" do
+      {:ok, _} = Pages.update_page_url_slug("about", "our-story")
+
+      assert {:ok, redirect} = Berrypod.Redirects.lookup("/about")
+      assert redirect.to_path == "/our-story"
+    end
+
+    test "clears url_slug when set to empty string" do
+      {:ok, _} = Pages.update_page_url_slug("about", "our-story")
+      {:ok, cleared} = Pages.update_page_url_slug("about", "")
+
+      assert cleared.url_slug == nil
+    end
+
+    test "creates system page in DB if it doesn't exist yet" do
+      # About page hasn't been saved to DB, only exists as defaults
+      assert Pages.get_page_struct("delivery") == nil
+
+      {:ok, updated} = Pages.update_page_url_slug("delivery", "shipping")
+
+      assert updated.url_slug == "shipping"
+      assert Pages.get_page_struct("delivery") != nil
+    end
+
+    test "returns error for non-existent custom page" do
+      assert {:error, :not_found} = Pages.update_page_url_slug("nope", "anything")
+    end
+
+    test "deletes stale redirect when new URL becomes live" do
+      # Create a redirect pointing FROM /my-url
+      Berrypod.Redirects.create_auto(%{
+        from_path: "/my-url",
+        to_path: "/somewhere-else",
+        source: "manual"
+      })
+
+      # Now make /my-url a live page
+      {:ok, _} = Pages.update_page_url_slug("about", "my-url")
+
+      # The stale redirect should be gone
+      assert :not_found = Berrypod.Redirects.lookup("/my-url")
+    end
+
+    test "invalidates R cache so new URL resolves immediately" do
+      {:ok, _} = Pages.update_page_url_slug("cart", "basket")
+
+      # R.cart() should now return /basket
+      assert BerrypodWeb.R.cart() == "/basket"
+    end
+  end
+
   describe "duplicate_custom_page/1" do
     test "creates a draft copy with -copy slug" do
       {:ok, original} =

test/berrypod/site_test.exs

@@ -1,5 +1,5 @@
 defmodule Berrypod.SiteTest do
-  use Berrypod.DataCase, async: true
+  use Berrypod.DataCase, async: false
 
   alias Berrypod.Site
   alias Berrypod.Site.SocialLink
@@ -274,4 +274,49 @@ defmodule Berrypod.SiteTest do
       assert Site.show_newsletter?() == true
     end
   end
+
+  describe "nav_items_for_shop/1" do
+    test "resolves system page URLs through R module" do
+      # Set a custom URL for the about page
+      {:ok, _} = Berrypod.Pages.update_page_url_slug("about", "our-story")
+
+      # Create a nav item pointing to /about (the default URL)
+      {:ok, _} = Site.create_nav_item(%{location: "header", label: "About", url: "/about"})
+
+      # The resolved URL should use the custom slug
+      [item] = Site.nav_items_for_shop(:header)
+      assert item["href"] == "/our-story"
+    end
+
+    test "resolves home page URL" do
+      {:ok, _} = Site.create_nav_item(%{location: "header", label: "Home", url: "/"})
+
+      [item] = Site.nav_items_for_shop(:header)
+      assert item["href"] == "/"
+    end
+
+    test "preserves external URLs" do
+      {:ok, _} =
+        Site.create_nav_item(%{
+          location: "header",
+          label: "External",
+          url: "https://example.com"
+        })
+
+      [item] = Site.nav_items_for_shop(:header)
+      assert item["href"] == "https://example.com"
+    end
+
+    test "preserves special routes like /collections/all" do
+      {:ok, _} =
+        Site.create_nav_item(%{
+          location: "header",
+          label: "Shop",
+          url: "/collections/all"
+        })
+
+      [item] = Site.nav_items_for_shop(:header)
+      assert item["href"] == "/collections/all"
+    end
+  end
 end

test/berrypod_web/plugs/broken_url_tracker_test.exs

@@ -1,18 +1,25 @@
 defmodule BerrypodWeb.Plugs.BrokenUrlTrackerTest do
   use BerrypodWeb.ConnCase, async: true
 
-  alias Berrypod.Redirects
+  import Berrypod.AccountsFixtures
+
+  alias Berrypod.{Redirects, Settings}
 
   setup do
     Redirects.create_table()
+    # Create admin user so SetupHook allows access
+    user_fixture()
+    # Mark site as live so requests aren't redirected to /coming-soon
+    {:ok, _} = Settings.set_site_live(true)
     :ok
   end
 
   test "records broken URL on 404", %{conn: conn} do
-    # Multi-segment path — not caught by the /:slug catch-all route
+    # Multi-segment path goes through the catch-all route and raises NotFoundError.
-    conn = get(conn, "/zz/nonexistent-path")
+    # The BrokenUrlTracker plug catches this and records it before re-raising.
-
+    assert_error_sent :not_found, fn ->
-    assert conn.status in [404, 500]
+      get(conn, "/zz/nonexistent-path")
+    end
 
     [broken_url] = Redirects.list_broken_urls()
     assert broken_url.path == "/zz/nonexistent-path"
@@ -20,7 +27,11 @@ defmodule BerrypodWeb.Plugs.BrokenUrlTrackerTest do
   end
 
   test "skips static asset paths", %{conn: conn} do
-    get(conn, "/assets/missing-file.js")
+    # Static asset paths should not be recorded as broken URLs.
+    # These raise NotFoundError but the tracker ignores them.
+    assert_error_sent :not_found, fn ->
+      get(conn, "/assets/missing-file.js")
+    end
 
     assert Redirects.list_broken_urls() == []
   end

test/support/conn_case.ex

@@ -32,9 +32,23 @@ defmodule BerrypodWeb.ConnCase do
   end
 
   setup tags do
-    Berrypod.DataCase.setup_sandbox(tags)
+    pid = Berrypod.DataCase.setup_sandbox(tags)
     Berrypod.Settings.SettingsCache.invalidate_all()
-    {:ok, conn: Phoenix.ConnTest.build_conn()}
+    # Clear caches without re-warming from DB (which would bypass sandbox)
+    BerrypodWeb.R.clear()
+    Berrypod.Pages.PageCache.invalidate_all()
+    Berrypod.Redirects.clear_cache()
+
+    # Add sandbox metadata to conn so Phoenix.Ecto.SQL.Sandbox plug
+    # can allow LiveView processes to access the test's DB connection
+    metadata = Phoenix.Ecto.SQL.Sandbox.metadata_for(Berrypod.Repo, pid)
+    encoded_metadata = Phoenix.Ecto.SQL.Sandbox.encode_metadata(metadata)
+
+    conn =
+      Phoenix.ConnTest.build_conn()
+      |> Plug.Conn.put_req_header("user-agent", encoded_metadata)
+
+    {:ok, conn: conn}
   end
 
   @doc """

test/support/data_case.ex

@@ -30,15 +30,21 @@ defmodule Berrypod.DataCase do
   setup tags do
     Berrypod.DataCase.setup_sandbox(tags)
     Berrypod.Settings.SettingsCache.invalidate_all()
+    # Clear caches without re-warming from DB (which would bypass sandbox)
+    BerrypodWeb.R.clear()
+    Berrypod.Pages.PageCache.invalidate_all()
+    Berrypod.Redirects.clear_cache()
     :ok
   end
 
   @doc """
   Sets up the sandbox based on the test tags.
+  Returns the owner pid for use in metadata generation.
   """
   def setup_sandbox(tags) do
     pid = Ecto.Adapters.SQL.Sandbox.start_owner!(Berrypod.Repo, shared: not tags[:async])
     on_exit(fn -> Ecto.Adapters.SQL.Sandbox.stop_owner(pid) end)
+    pid
   end
 
   @doc """