fix: clarify map setup without zones

frontend/src/components/maps/LocationMapSetupPanel.jsx

@@ -1,6 +1,7 @@
 export default function LocationMapSetupPanel({
   hasAnyMap,
   canManage,
+  zoneCount = 0,
   saving,
   onContinue,
   onPreview,
@@ -15,6 +16,10 @@ export default function LocationMapSetupPanel({
     : canManage
       ? "Create a rough map for this store location."
       : "A household admin has not published a map yet.";
+  const hasZones = zoneCount > 0;
+  const createFromZonesLabel = hasZones
+    ? `Create From ${zoneCount} Zone${zoneCount === 1 ? "" : "s"}`
+    : "Create From Zones";
 
   return (
     <section className="location-map-setup">
@@ -22,7 +27,6 @@ export default function LocationMapSetupPanel({
       <p>{description}</p>
       {hasAnyMap && canManage ? (
         <div className="location-map-setup-actions">
-          <>
           <button type="button" className="btn-primary" onClick={onContinue}>
             Continue Editing
           </button>
@@ -32,18 +36,20 @@ export default function LocationMapSetupPanel({
           <button type="button" className="btn-primary" onClick={onPublish} disabled={saving || !canManage}>
             Publish Map
           </button>
-          </>
         </div>
       ) : !hasAnyMap && canManage ? (
         <div className="location-map-setup-actions">
-          <>
+          {!hasZones ? (
-            <button type="button" className="btn-primary" onClick={onCreateFromZones} disabled={saving}>
+            <p className="location-map-setup-note">
-              Create Map From Existing Zones
+              No zones are available yet. Create a blank map now, or add zones first for an automatic starter layout.
+            </p>
+          ) : null}
+          <button type="button" className="btn-primary" onClick={onCreateFromZones} disabled={saving || !hasZones}>
+            {createFromZonesLabel}
           </button>
           <button type="button" className="btn-secondary" onClick={onCreateBlank} disabled={saving}>
             Create Blank Map
           </button>
-          </>
         </div>
       ) : null}
     </section>

frontend/src/pages/LocationMapManager.jsx

@@ -475,6 +475,7 @@ export default function LocationMapManager() {
           <LocationMapSetupPanel
             hasAnyMap={hasAnyMap}
             canManage={canManage}
+            zoneCount={mapState?.zones?.length || 0}
             saving={saving}
             onContinue={() => setMode("edit")}
             onPreview={handlePreviewDraft}

frontend/src/styles/pages/LocationMapManager.css

@@ -553,6 +553,17 @@
   gap: 0.6rem;
 }
 
+.location-map-setup-note {
+  margin: 0;
+  padding: 0.6rem 0.7rem;
+  border: 1px solid rgba(245, 158, 11, 0.28);
+  border-radius: 8px;
+  background: rgba(245, 158, 11, 0.1);
+  color: #f8fafc;
+  font-size: 0.9rem;
+  font-weight: 700;
+}
+
 .location-map-loading {
   margin: 3rem auto;
   color: #9fb3c8;

frontend/tests/location-map-manager.spec.ts

@@ -262,10 +262,10 @@ test("admin creates a map from zones, saves a draft, and publishes it", async ({
   await expect(page.getByRole("heading", { name: "Costco" })).toBeVisible();
   await expect(page.getByText("Eastvale")).toBeVisible();
   await expect(page.getByRole("heading", { name: "No Map" })).toBeVisible();
-  await expect(page.getByRole("button", { name: "Create Map From Existing Zones" })).toBeVisible();
+  await expect(page.getByRole("button", { name: "Create From 2 Zones" })).toBeVisible();
   await expect(page.getByLabel("Map controls")).toHaveCount(0);
 
-  await page.getByRole("button", { name: "Create Map From Existing Zones" }).click();
+  await page.getByRole("button", { name: "Create From 2 Zones" }).click();
   await expect(page.getByText("Bakery")).toBeVisible();
   await expect(page.getByText("Frozen Foods")).toBeVisible();
   await expect(page.getByRole("button", { name: "Pan Mode" })).toBeVisible();
@@ -373,6 +373,31 @@ test("admin creates a map from zones, saves a draft, and publishes it", async ({
   await expect(page.getByText("loose batteries")).toBeVisible();
 });
 
+test("admin setup explains when no zones exist yet", async ({ page }) => {
+  await mockMapShell(page);
+
+  await page.route("**/households/1/locations/10/map", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        ...noMapState(true),
+        zones: [],
+        items: [],
+        unmapped_count: 0,
+      }),
+    });
+  });
+
+  await page.goto("/stores/100/locations/10/map");
+
+  await expect(page.getByRole("heading", { name: "No Map" })).toBeVisible();
+  await expect(page.getByText("No zones are available yet.")).toBeVisible();
+  await expect(page.getByRole("button", { name: "Create From Zones" })).toBeDisabled();
+  await expect(page.getByRole("button", { name: "Create Blank Map" })).toBeEnabled();
+  await expect(page.getByLabel("Map controls")).toHaveCount(0);
+});
+
 test("admin status follows the visible map when a saved draft exists", async ({ page }) => {
   await mockMapShell(page);
 
@@ -857,7 +882,7 @@ test("members see a clean empty state when no map is published", async ({ page }
   await expect(page.getByRole("heading", { name: "No Map" })).toBeVisible();
   await expect(page.getByText("A household admin has not published a map yet.")).toBeVisible();
   await expect(page.getByText("Create a rough map for this store location.")).toHaveCount(0);
-  await expect(page.getByRole("button", { name: "Create Map From Existing Zones" })).toHaveCount(0);
+  await expect(page.getByRole("button", { name: /Create From/ })).toHaveCount(0);
   await expect(page.getByRole("button", { name: "Create Blank Map" })).toHaveCount(0);
   await expect(page.getByLabel("Map controls")).toHaveCount(0);
 });