Merge branch 'fix/TL-1860' into develop

commit 38d03588b1
Merge: 8e987d0 6f4aa3b
Author: ncoronel <ncoronel@quo.ar>
Date:   Wed Aug 26 10:25:23 2026 -0300

    Merge branch 'fix/cart-expiration-notification' of https://gitea.quo.ar/tbianchini/shopit-front into fix/cart-expiration-notification

commit 8e987d0ce6
Author: ncoronel <ncoronel@quo.ar>
Date:   Wed Aug 26 10:02:26 2026 -0300

    fix(purchase-status): clear cart on approved purchase

commit e171b9a233
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 17:06:07 2026 -0300

    refactor(checkout): use purchase id route segment

commit 643d43adea
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 17:05:59 2026 -0300

    fix(checkout): handle expired purchase exits

commit d89d01b511
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 16:47:17 2026 -0300

    fix(checkout): refresh expired carts

commit eeb245209b
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 16:46:12 2026 -0300

    fix(checkout): show backend start errors

commit 9d3754c2d8
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 16:33:44 2026 -0300

    fix(cart): refresh state after expiration

commit 6f4aa3b1bd
Author: ncoronel <ncoronel@quo.ar>
Date:   Wed Aug 26 10:02:26 2026 -0300

    fix(purchase-status): clear cart on approved purchase

commit 2b342ec235
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 17:06:07 2026 -0300

    refactor(checkout): use purchase id route segment

commit d06b146104
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 17:05:59 2026 -0300

    fix(checkout): handle expired purchase exits

commit f4e0a9e028
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 16:47:17 2026 -0300

    fix(checkout): refresh expired carts

commit 8c2b738806
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 16:46:12 2026 -0300

    fix(checkout): show backend start errors

commit 1362d0c163
Author: ncoronel <ncoronel@quo.ar>
Date:   Tue Aug 25 16:33:44 2026 -0300

    fix(cart): refresh state after expiration

angular.json

@@ -47,6 +47,9 @@
           },
           "configurations": {
             "production": {
+              "optimization": true,
+              "extractLicenses": true,
+              "sourceMap": false,
               "budgets": [
                 {
                   "type": "initial",
@@ -84,6 +87,9 @@
               ]
             },
             "homo": {
+              "optimization": true,
+              "extractLicenses": true,
+              "sourceMap": false,
               "fileReplacements": [
                 {
                   "replace": "src/environments/environment.ts",

src/app/app.routes.spec.ts

@@ -7,6 +7,7 @@ import { of } from 'rxjs';
 import { App } from './app';
 import { AuthService } from './core/services/auth/auth.service';
 import { CartService } from './core/services/cart/cart.service';
+import { CheckoutService } from './core/services/checkout.service';
 import { Tenant } from './core/services/tenant.interface';
 import { TenantService } from './core/services/tenant.service';
 import { routes } from './app.routes';
@@ -97,6 +98,21 @@ async function renderAppAt(
       {
         provide: AuthService,
         useValue: authService
+      },
+      {
+        provide: CheckoutService,
+        useValue: {
+          withCustomLoading() {
+            return this;
+          },
+          getPurchase: vi.fn().mockResolvedValue({
+            id: 25,
+            status: 'created',
+            items: [],
+            subtotal: '0.00',
+            total: '0.00'
+          })
+        }
       }
     ]
   }).compileComponents();
@@ -246,15 +262,33 @@ describe('app routes', () => {
     expect(compiled.textContent).toContain('No encontramos una tienda para este dominio');
   });
 
-  it('redirects unauthenticated users from /checkout to /login', async () => {
+  it('redirects unauthenticated users from /checkout/:id to /login', async () => {
-    const { router } = await renderAppAt('/checkout', createTenantServiceStub(), createAuthServiceStub(false));
+    const { router } = await renderAppAt('/checkout/25', createTenantServiceStub(), createAuthServiceStub(false));
 
-    expect(router.url).toBe('/login?returnUrl=%2Fcheckout');
+    expect(router.url).toBe('/login?returnUrl=%2Fcheckout%2F25');
   });
 
-  it('allows authenticated users to access /checkout', async () => {
+  it('allows authenticated users to access /checkout/:id', async () => {
-    const { router } = await renderAppAt('/checkout', createTenantServiceStub(), createAuthServiceStub(true));
+    const checkoutTenant = {
+      ...tenant,
+      menues: [
+        {
+          id: 1,
+          code: 'checkout',
+          label: 'Checkout',
+          parent_menu_code: null,
+          content_type: 'dynamic' as const,
+          route: '/checkout',
+          submenues: []
+        }
+      ]
+    };
+    const { router } = await renderAppAt(
+      '/checkout/25',
+      createTenantServiceStub('ready', checkoutTenant),
+      createAuthServiceStub(true)
+    );
 
-    expect(router.url).toBe('/checkout');
+    expect(router.url).toBe('/checkout/25');
   });
 });

src/app/app.spec.ts

@@ -115,6 +115,6 @@ describe('App', () => {
     expect(fixture.nativeElement.textContent).toContain('No encontramos una tienda para este dominio');
     expect(document.title).toBe('ShopitFront');
     expect(document.head.querySelector<HTMLLinkElement>('link[rel~="icon"]')?.getAttribute('href'))
-      .toBe('favicon.ico');
+      .toBe("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'/%3E");
   });
 });

src/app/app.ts

@@ -9,6 +9,8 @@ import { GlobalLoadingComponent } from './shared/components/global-loading/globa
 import { ModalHostComponent } from './shared/components/modal-host/modal-host.component';
 import { ToastContainerComponent } from './shared/components/toast-container/toast-container.component';
 
+const EMPTY_FAVICON = "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'/%3E";
+
 function hexToRgb(hex: string): string {
   const cleanHex = hex.replace('#', '').trim();
   let r = 0, g = 0, b = 0;
@@ -66,7 +68,7 @@ export class App {
     effect(() => {
       const tenant = this.tenantService.tenant();
       const siteTitle = tenant?.site_title?.trim() || 'ShopitFront';
-      const faviconHref = tenant?.favicon || 'favicon.ico';
+      const faviconHref = tenant?.favicon || EMPTY_FAVICON;
 
       this.title.setTitle(siteTitle);
 

src/app/core/guards/menu.guard.spec.ts

@@ -62,7 +62,7 @@ describe('hasMenuGuard', () => {
   });
 
   it('redirects a missing menu route to the store root', () => {
-    const result = runGuard('checkout', '/checkout', tenant);
+    const result = runGuard('checkout', '/checkout/25', tenant);
 
     expect(result instanceof UrlTree).toBe(true);
     expect(TestBed.inject(Router).serializeUrl(result as UrlTree)).toBe('/');

src/app/core/layout/store-layout/store-footer/store-footer.component.html

@@ -22,14 +22,18 @@
 
       <div class="col-12 col-md-6 col-xl-5 d-grid gap-3 align-content-start store-layout__contact">
         <div class="d-grid gap-2 store-layout__contact-details">
-          <div class="d-flex align-items-center gap-2">
+          @if (address) {
-            <i class="fa-solid fa-location-dot" aria-hidden="true"></i>
+            <div class="d-flex align-items-center gap-2">
-            <span>Av. San Lorenzo 1542, Rosario</span>
+              <i class="fa-solid fa-location-dot" aria-hidden="true"></i>
-          </div>
+              <span>{{ address }}</span>
-          <div class="d-flex align-items-center gap-2">
+            </div>
-            <i class="fa-solid fa-phone" aria-hidden="true"></i>
+          }
-            <span>54 9 (0341) 6658247</span>
+          @if (phone) {
-          </div>
+            <div class="d-flex align-items-center gap-2">
+              <i class="fa-solid fa-phone" aria-hidden="true"></i>
+              <span>{{ phone }}</span>
+            </div>
+          }
         </div>
 
         <p class="mb-0 small store-layout__muted-text store-layout__copyright">

src/app/core/layout/store-layout/store-footer/store-footer.component.ts

@@ -27,5 +27,7 @@ export class StoreFooterComponent {
   @Input() logoUrl: string | null = null;
   @Input() backgroundImageUrl: string | null = null;
   @Input() storeName: string | null = null;
+  @Input() address: string | null = null;
+  @Input() phone: string | null = null;
   readonly logoutClick = output<void>();
 }

src/app/core/layout/store-layout/store-header/store-header.component.html

@@ -79,10 +79,13 @@
 
           @if (displayCart()) {
             <app-cart-icon
-              [quantity]="cartQuantity()"
+              [quantity]="cartDisabled() ? null : cartQuantity()"
-              ariaLabel="Carrito de compras"
+              [disabled]="cartDisabled()"
-              title="Carrito"
+              [ariaLabel]="
-              (click)="cartClick.emit()"
+                cartDisabled() ? 'Carrito no disponible durante el checkout' : 'Carrito de compras'
+              "
+              [title]="cartDisabled() ? 'Carrito no disponible durante el checkout' : 'Carrito'"
+              (click)="onCartClick()"
             />
           }
 
@@ -149,9 +152,9 @@
     </div>
   </div>
 
-  @if (displayCategories()) {
+  <div class="store-layout__categories d-none d-md-block">
-    <div class="store-layout__categories d-none d-md-block">
+    <div class="container-xl h-100 px-3 px-md-4 d-flex align-items-center">
-      <div class="container-xl px-3 px-md-4">
+      @if (displayCategories()) {
         <div class="store-layout__category-menu">
           <button
             type="button"
@@ -172,7 +175,18 @@
             (categorySelect)="onCategorySelect($event)"
           />
         </div>
-      </div>
+      }
+
+      @if (checkoutRemainingTime(); as remainingTime) {
+        <div
+          class="store-layout__checkout-timer ms-auto d-none d-md-flex align-items-baseline gap-3"
+          role="timer"
+          aria-label="Tiempo restante de compra"
+        >
+          <span class="store-layout__checkout-timer-label">Tiempo restante de compra:</span>
+          <span class="store-layout__checkout-timer-value">{{ remainingTime }}</span>
+        </div>
+      }
     </div>
-  }
+  </div>
 </header>

src/app/core/layout/store-layout/store-header/store-header.component.scss

@@ -10,6 +10,26 @@
   border-bottom: 1px solid var(--border-color);
 }
 
+.store-layout__categories {
+  height: 3.5rem;
+}
+
+.store-layout__checkout-timer {
+  color: var(--tenant-primary);
+  font-weight: 700;
+  white-space: nowrap;
+}
+
+.store-layout__checkout-timer-label {
+  font-size: 13px;
+}
+
+.store-layout__checkout-timer-value {
+  font-size: 20px;
+  line-height: 1;
+  font-variant-numeric: tabular-nums;
+}
+
 .store-layout__brand-slot {
   min-width: 150px;
 }

src/app/core/layout/store-layout/store-header/store-header.component.ts

@@ -1,4 +1,13 @@
-import { Component, ElementRef, HostListener, inject, input, output, signal } from '@angular/core';
+import {
+  Component,
+  computed,
+  ElementRef,
+  HostListener,
+  inject,
+  input,
+  output,
+  signal,
+} from '@angular/core';
 import { Router, RouterLink } from '@angular/router';
 import { AuthUser } from '../../../services/auth/auth.interfaces';
 import { CartIconComponent } from '../../../../shared/components/cart-icon/cart-icon.component';
@@ -39,6 +48,8 @@ export class StoreHeaderComponent {
   readonly displayCategories = input(true);
   readonly displaySeachBar = input(true);
   readonly displayCart = input(true);
+  readonly cartDisabled = input(false);
+  readonly checkoutRemainingSeconds = input<number | null>(null);
   readonly cartClick = output<void>();
   readonly ticketsClick = output<void>();
   readonly loginClick = output<void>();
@@ -52,6 +63,26 @@ export class StoreHeaderComponent {
   protected readonly minSearchLength = 3;
   protected readonly showSearchError = signal(false);
   protected readonly searchControl = new FormControl('', { nonNullable: true });
+  protected readonly checkoutRemainingTime = computed(() => {
+    const remainingSeconds = this.checkoutRemainingSeconds();
+
+    if (remainingSeconds === null) {
+      return null;
+    }
+
+    const minutes = Math.floor(remainingSeconds / 60);
+    const seconds = remainingSeconds % 60;
+
+    return `${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
+  });
+
+  protected onCartClick(): void {
+    if (this.cartDisabled()) {
+      return;
+    }
+
+    this.cartClick.emit();
+  }
 
   @HostListener('document:click', ['$event'])
   protected onDocumentClick(event: MouseEvent): void {

src/app/core/layout/store-layout/store-layout.component.html

@@ -12,7 +12,9 @@
     [displayCategories]="tenant()?.display_categories ?? true"
     [displaySeachBar]="tenant()?.display_seach_bar ?? true"
     [displayCart]="displayCart()"
-    (cartClick)="isCartOpen.set(!isCartOpen())"
+    [cartDisabled]="isCheckoutRoute()"
+    [checkoutRemainingSeconds]="checkoutRemainingSeconds()"
+    (cartClick)="onCartClick()"
     (ticketsClick)="onTicketsClick()"
     (loginClick)="onLoginClick()"
     (logoutClick)="onLogoutClick()"
@@ -20,7 +22,7 @@
     (categorySelect)="onCategorySelect($event)"
   />
 
-  @if (displayCart() && isCartOpen()) {
+  @if (displayCart() && !isCheckoutRoute() && isCartOpen()) {
     <div class="store-layout__cart-overlay" (click)="isCartOpen.set(false)"></div>
     <div class="store-layout__cart-dropdown card border-0 shadow-lg">
       <app-cart
@@ -29,7 +31,11 @@
         [subtotal]="cartSubtotal()"
         [discount]="cartDiscount()"
         [total]="cartTotal()"
-        [readonly]="!cartEditingEnabled()"
+        [readonly]="!canModifyCart()"
+        [allowModify]="canModifyCart()"
+        [allowUpdateQuantity]="canUpdateCartQuantity()"
+        [allowUpdateVariant]="canUpdateCartVariant()"
+        [allowDelete]="canDeleteCartItems()"
         [backgroundColor]="'#ffffff'"
         (closed)="isCartOpen.set(false)"
       >
@@ -63,6 +69,8 @@
     [logoUrl]="tenant()?.footer_logo ?? null"
     [backgroundImageUrl]="tenant()?.footer_bg_image ?? null"
     [storeName]="tenant()?.nombre ?? null"
+    [address]="tenant()?.address ?? null"
+    [phone]="tenant()?.phone ?? null"
     (logoutClick)="onLogoutClick()"
   />
 </div>

src/app/core/layout/store-layout/store-layout.component.scss

@@ -1,5 +1,7 @@
 :host {
   display: flex;
+  width: 100%;
+  min-width: 0;
   min-height: 100dvh;
   background: #f5f5f5;
   color: #202020;
@@ -7,6 +9,8 @@
 
 .store-layout {
   position: relative;
+  width: 100%;
+  min-width: 0;
 }
 
 .store-layout__cart-overlay {
@@ -21,6 +25,8 @@
 
 .store-layout__cart-dropdown {
   position: absolute;
+  display: flex;
+  flex-direction: column;
   top: 100px;
   right: calc((100% - 1320px) / 2 + 1.5rem);
   width: 100%;
@@ -34,6 +40,10 @@
   overflow: hidden;
   animation: store-layout-slide-down 0.2s ease-out;
 
+  > app-cart {
+    min-height: 0;
+  }
+
   @media (max-width: 1400px) {
     right: 1.5rem;
   }

src/app/core/layout/store-layout/store-layout.component.spec.ts

@@ -1,10 +1,18 @@
 import { describe, it, expect, beforeEach, vi } from 'vitest';
 import { signal } from '@angular/core';
+import { HttpErrorResponse } from '@angular/common/http';
 import { TestBed } from '@angular/core/testing';
 import { By } from '@angular/platform-browser';
-import { provideRouter, Router } from '@angular/router';
+import {
+  ActivatedRoute,
+  convertToParamMap,
+  ParamMap,
+  provideRouter,
+  Router,
+  UrlSerializer,
+} from '@angular/router';
 
-import { of } from 'rxjs';
+import { BehaviorSubject, of } from 'rxjs';
 
 import { Tenant } from '../../services/tenant.interface';
 import { TenantService } from '../../services/tenant.service';
@@ -16,12 +24,16 @@ import { AuthUser } from '../../services/auth/auth.interfaces';
 import { StoreLayoutComponent } from './store-layout.component';
 import { StoreHeaderComponent } from './store-header/store-header.component';
 import { CheckoutService } from '../../services/checkout.service';
+import { CheckoutCountdownService } from '../../services/checkout-countdown.service';
+import { TenantUrlSerializer } from '../../services/tenant-url.serializer';
 
 const tenant: Tenant = {
   id: 1,
   codigo: 'test',
   nombre: 'Test Tenant',
   dominio: 'localhost',
+  address: 'Calle Test 123, Rosario',
+  phone: '+54 341 555 1234',
   primary_color: '#6376F3',
   secondary_color: '#A0A0A0',
   danger_color: '#FF8888',
@@ -32,6 +44,13 @@ const tenant: Tenant = {
   footer_logo: 'https://example.com/footer.png',
   header_bg_image: 'https://example.com/header-background.png',
   footer_bg_image: 'https://example.com/footer-background.png',
+  cart_editing_policy: {
+    code: 'full',
+    allow_modify: true,
+    allow_delete: true,
+    allow_update_quantity: true,
+    allow_update_variant: true,
+  },
   categories: [],
   menues: [
     {
@@ -132,12 +151,16 @@ describe('StoreLayoutComponent', () => {
   let tenantState = signal<Tenant | null>(tenant);
   let cartState = signal<Cart | null>(null);
   let authUserState = signal<AuthUser | null>(null);
+  let checkoutRemainingSecondsState = signal<number | null>(null);
   let checkoutServiceStub: { startCheckout: ReturnType<typeof vi.fn> };
+  let queryParamMapState: BehaviorSubject<ParamMap>;
 
   beforeEach(async () => {
     tenantState = signal<Tenant | null>(tenant);
     cartState = signal<Cart | null>(null);
     authUserState = signal<AuthUser | null>(null);
+    checkoutRemainingSecondsState = signal<number | null>(null);
+    queryParamMapState = new BehaviorSubject(convertToParamMap({}));
     const isAuthenticatedState = signal(false);
     checkoutServiceStub = {
       startCheckout: vi.fn().mockResolvedValue({ id: 55 }),
@@ -147,6 +170,11 @@ describe('StoreLayoutComponent', () => {
       imports: [StoreLayoutComponent],
       providers: [
         provideRouter([]),
+        { provide: UrlSerializer, useClass: TenantUrlSerializer },
+        {
+          provide: ActivatedRoute,
+          useValue: { queryParamMap: queryParamMapState.asObservable() },
+        },
         {
           provide: TenantService,
           useValue: {
@@ -190,6 +218,12 @@ describe('StoreLayoutComponent', () => {
           provide: CheckoutService,
           useValue: checkoutServiceStub,
         },
+        {
+          provide: CheckoutCountdownService,
+          useValue: {
+            remainingSeconds: checkoutRemainingSecondsState.asReadonly(),
+          },
+        },
       ],
     }).compileComponents();
   });
@@ -206,6 +240,62 @@ describe('StoreLayoutComponent', () => {
     expect(compiled.querySelector('app-store-footer .store-layout__footer')).not.toBeNull();
   });
 
+  it('opens the cart when requested through the openCart query parameter', () => {
+    const fixture = TestBed.createComponent(StoreLayoutComponent);
+    fixture.detectChanges();
+
+    expect((fixture.componentInstance as any).isCartOpen()).toBe(false);
+
+    queryParamMapState.next(convertToParamMap({ openCart: 'true' }));
+    fixture.detectChanges();
+
+    expect((fixture.componentInstance as any).isCartOpen()).toBe(true);
+    expect((fixture.nativeElement as HTMLElement).querySelector('app-cart')).not.toBeNull();
+  });
+
+  it('disables the cart icon and prevents opening the popup during checkout with a tenant base path', () => {
+    tenantState.set({ ...tenant, base_path: 'fiesta' });
+    const router = TestBed.inject(Router);
+    vi.spyOn(router, 'url', 'get').mockReturnValue('/fiesta/checkout/25');
+
+    const fixture = TestBed.createComponent(StoreLayoutComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+    const cartButton = element.querySelector<HTMLButtonElement>('app-cart-icon button');
+    const header = fixture.debugElement.query(By.directive(StoreHeaderComponent));
+
+    expect(cartButton?.disabled).toBe(true);
+    expect(cartButton?.getAttribute('aria-label')).toBe(
+      'Carrito no disponible durante el checkout',
+    );
+    expect(element.querySelector('[data-testid="cart-badge"]')).toBeNull();
+
+    header.componentInstance.cartClick.emit();
+    queryParamMapState.next(convertToParamMap({ openCart: 'true' }));
+    fixture.detectChanges();
+
+    expect((fixture.componentInstance as any).isCartOpen()).toBe(false);
+    expect(element.querySelector('app-cart')).toBeNull();
+    expect(element.querySelector('.store-layout__cart-overlay')).toBeNull();
+  });
+
+  it('shows the synchronized countdown in the header whenever one is active', () => {
+    checkoutRemainingSecondsState.set(587);
+
+    const fixture = TestBed.createComponent(StoreLayoutComponent);
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+
+    expect(element.querySelector('.store-layout__checkout-timer-label')?.textContent).toContain(
+      'Tiempo restante de compra:',
+    );
+    expect(element.querySelector('.store-layout__checkout-timer-value')?.textContent?.trim()).toBe(
+      '09:47',
+    );
+  });
+
   it('hides the configured header elements when the tenant disables them', () => {
     tenantState.set({
       ...tenant,
@@ -267,6 +357,12 @@ describe('StoreLayoutComponent', () => {
     expect(compiled.querySelector('.fa-whatsapp')).not.toBeNull();
     expect(compiled.querySelector('.fa-facebook')).not.toBeNull();
     expect(compiled.querySelector('.fa-linkedin-in')).not.toBeNull();
+    expect(compiled.querySelector('.store-layout__contact-details')?.textContent).toContain(
+      tenant.address,
+    );
+    expect(compiled.querySelector('.store-layout__contact-details')?.textContent).toContain(
+      tenant.phone,
+    );
   });
 
   it('navigates to search results when the search button is clicked', () => {
@@ -517,7 +613,7 @@ describe('StoreLayoutComponent', () => {
     const authService = TestBed.inject(AuthService);
     const cartService = TestBed.inject(CartService);
     const router = TestBed.inject(Router);
-    vi.spyOn(router, 'url', 'get').mockReturnValue('/checkout?purchase=25');
+    vi.spyOn(router, 'url', 'get').mockReturnValue('/checkout/25');
     const navigateSpy = vi.spyOn(router, 'navigate').mockResolvedValue(true);
 
     const fixture = TestBed.createComponent(StoreLayoutComponent);
@@ -604,12 +700,44 @@ describe('StoreLayoutComponent', () => {
     expect(checkoutServiceStub.startCheckout).toHaveBeenCalledWith('test', {
       cart_id: 1,
     });
-    expect(router.navigate).toHaveBeenCalledWith(['/checkout'], {
+    expect(router.navigate).toHaveBeenCalledWith(['/checkout', 55]);
-      queryParams: { purchase: 55 },
-    });
     expect((fixture.componentInstance as any).isCartOpen()).toBe(false);
   });
 
+  it('shows the backend message and refreshes the cart when its reservation expired', async () => {
+    const message = 'La reserva de stock venció. Usá el carrito activo para continuar.';
+    checkoutServiceStub.startCheckout.mockRejectedValue(
+      new HttpErrorResponse({
+        status: 422,
+        error: { code: 'stock_reservation.expired', message },
+      }),
+    );
+    cartState.set({
+      id: 1,
+      tenant_codigo: tenant.codigo,
+      status: 'active',
+      subtotal: '100.00',
+      items: [],
+    });
+    authUserState.set({
+      id: 7,
+      nombre_apellido: 'Juan Perez',
+      email: 'juan@example.com',
+      dni: '12345678',
+      telefono: '3415555555',
+    });
+
+    const fixture = TestBed.createComponent(StoreLayoutComponent);
+    const loadCart = vi.spyOn(TestBed.inject(CartService), 'loadCart');
+    fixture.detectChanges();
+    loadCart.mockClear();
+
+    await (fixture.componentInstance as any).onCheckoutClick();
+
+    expect(TestBed.inject(ToastService).danger).toHaveBeenCalledWith(message);
+    expect(loadCart).toHaveBeenCalledOnce();
+  });
+
   it('allows modifying quantities directly in the regular cart without a toggle', () => {
     cartState.set({
       id: 1,
@@ -647,7 +775,16 @@ describe('StoreLayoutComponent', () => {
   });
 
   it('hides quantity selectors when the tenant disables cart editing', () => {
-    tenantState.set({ ...tenant, cart_editing_enabled: false });
+    tenantState.set({
+      ...tenant,
+      cart_editing_policy: {
+        code: 'disabled',
+        allow_modify: false,
+        allow_delete: false,
+        allow_update_quantity: false,
+        allow_update_variant: false,
+      },
+    });
     cartState.set({
       id: 1,
       tenant_codigo: tenant.codigo,
@@ -676,4 +813,62 @@ describe('StoreLayoutComponent', () => {
     expect(cartItem.componentInstance.readonly()).toBe(true);
     expect(cartItem.nativeElement.querySelector('app-quantity-selector')).toBeNull();
   });
+
+  it('shows variant selectors only for the full cart editing policy', () => {
+    const variantCart: Cart = {
+      id: 1,
+      tenant_codigo: tenant.codigo,
+      status: 'active',
+      subtotal: '100.00',
+      items: [
+        {
+          id: 1,
+          cantidad: 1,
+          precio_unitario: '100.00',
+          catalog_item_id: 1,
+          variant_id: 10,
+          nombre: 'Producto',
+          imagen: null,
+          variant: { id: 10, precio: '100.00', stock_tecnico: 5, values: { talle: 'M' } },
+          variants: [
+            { id: 10, precio: '100.00', stock_tecnico: 5, values: { talle: 'M' } },
+            { id: 11, precio: '100.00', stock_tecnico: 5, values: { talle: 'L' } },
+          ],
+        },
+      ],
+    };
+    tenantState.set({
+      ...tenant,
+      cart_editing_policy: {
+        code: 'quantity_and_remove',
+        allow_modify: true,
+        allow_delete: true,
+        allow_update_quantity: true,
+        allow_update_variant: false,
+      },
+    });
+    cartState.set(variantCart);
+
+    const fixture = TestBed.createComponent(StoreLayoutComponent);
+    fixture.detectChanges();
+    (fixture.componentInstance as any).isCartOpen.set(true);
+    fixture.detectChanges();
+
+    expect(fixture.nativeElement.querySelector('app-variant-selector')).toBeNull();
+    expect(fixture.nativeElement.querySelector('app-quantity-selector')).not.toBeNull();
+
+    tenantState.set({
+      ...tenant,
+      cart_editing_policy: {
+        code: 'full',
+        allow_modify: true,
+        allow_delete: true,
+        allow_update_quantity: true,
+        allow_update_variant: true,
+      },
+    });
+    fixture.detectChanges();
+
+    expect(fixture.nativeElement.querySelector('app-variant-selector')).not.toBeNull();
+  });
 });

src/app/core/layout/store-layout/store-layout.component.ts

@@ -1,5 +1,14 @@
-import { Component, computed, inject, OnInit, signal } from '@angular/core';
+import { HttpErrorResponse } from '@angular/common/http';
-import { Router, RouterOutlet } from '@angular/router';
+import { Component, computed, DestroyRef, inject, OnInit, signal } from '@angular/core';
+import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
+import {
+  ActivatedRoute,
+  NavigationEnd,
+  PRIMARY_OUTLET,
+  Router,
+  RouterOutlet,
+} from '@angular/router';
+import { filter } from 'rxjs';
 import { TenantService } from '../../services/tenant.service';
 import { CartService } from '../../services/cart/cart.service';
 import { StoreFooterComponent, StoreFooterSection } from './store-footer/store-footer.component';
@@ -9,9 +18,13 @@ import { ButtonComponent } from '../../../shared/components/button/button.compon
 import { CartItem, CartItemVariantValue } from '../../services/cart/cart.interface';
 import { AuthService } from '../../services/auth/auth.service';
 import { findMenu } from '../../services/menu.utils';
-import { CheckoutService } from '../../services/checkout.service';
+import {
+  CheckoutService,
+  isExpiredStockReservationResponse,
+} from '../../services/checkout.service';
 import { ToastService } from '../../services/toast.service';
 import { Category } from '../../services/tenant.interface';
+import { CheckoutCountdownService } from '../../services/checkout-countdown.service';
 
 @Component({
   selector: 'app-store-layout',
@@ -30,14 +43,29 @@ export class StoreLayoutComponent implements OnInit {
   private readonly cartService = inject(CartService);
   private readonly authService = inject(AuthService);
   private readonly checkoutService = inject(CheckoutService);
+  private readonly checkoutCountdownService = inject(CheckoutCountdownService);
   private readonly toastService = inject(ToastService);
   private readonly router = inject(Router);
+  private readonly route = inject(ActivatedRoute);
+  private readonly destroyRef = inject(DestroyRef);
 
   protected readonly isCartOpen = signal(false);
+  protected readonly isCheckoutRoute = signal(this.isCheckoutUrl(this.router.url));
+  protected readonly checkoutRemainingSeconds = this.checkoutCountdownService.remainingSeconds;
   protected readonly isCreatingPurchase = signal(false);
   protected readonly displayCart = computed(() => this.tenant()?.display_cart ?? true);
-  protected readonly cartEditingEnabled = computed(
+  protected readonly cartEditingPolicy = computed(() => this.tenant()?.cart_editing_policy ?? null);
-    () => this.tenant()?.cart_editing_enabled ?? true,
+  protected readonly canModifyCart = computed(
+    () => this.cartEditingPolicy()?.allow_modify ?? false,
+  );
+  protected readonly canDeleteCartItems = computed(
+    () => this.cartEditingPolicy()?.allow_delete ?? false,
+  );
+  protected readonly canUpdateCartQuantity = computed(
+    () => this.cartEditingPolicy()?.allow_update_quantity ?? false,
+  );
+  protected readonly canUpdateCartVariant = computed(
+    () => this.cartEditingPolicy()?.allow_update_variant ?? false,
   );
 
   protected readonly cartSubtotal = computed(() => {
@@ -92,6 +120,7 @@ export class StoreLayoutComponent implements OnInit {
       attributes,
       quantity: item.cantidad,
       variantId: item.variant_id,
+      variants: item.variants,
     };
   }
 
@@ -135,15 +164,49 @@ export class StoreLayoutComponent implements OnInit {
   });
 
   ngOnInit(): void {
+    this.router.events
+      .pipe(
+        filter((event): event is NavigationEnd => event instanceof NavigationEnd),
+        takeUntilDestroyed(this.destroyRef),
+      )
+      .subscribe((event) => {
+        const isCheckoutRoute = this.isCheckoutUrl(event.urlAfterRedirects);
+        this.isCheckoutRoute.set(isCheckoutRoute);
+
+        if (isCheckoutRoute) {
+          this.isCartOpen.set(false);
+        }
+      });
+
+    this.route.queryParamMap.pipe(takeUntilDestroyed(this.destroyRef)).subscribe((params) => {
+      if (params.get('openCart') === 'true' && !this.isCheckoutRoute()) {
+        this.isCartOpen.set(true);
+      }
+    });
+
     this.cartService.loadCart().subscribe({
       error: (err) => console.error('Error loading cart', err),
     });
   }
 
+  private isCheckoutUrl(url: string): boolean {
+    const primarySegments = this.router.parseUrl(url).root.children[PRIMARY_OUTLET]?.segments ?? [];
+
+    return primarySegments[0]?.path === 'checkout';
+  }
+
   protected onLoginClick(): void {
     void this.router.navigate(['/login']);
   }
 
+  protected onCartClick(): void {
+    if (this.isCheckoutRoute()) {
+      return;
+    }
+
+    this.isCartOpen.update((isOpen) => !isOpen);
+  }
+
   protected onSearch(term: string): void {
     void this.router.navigate(['/buscar'], {
       queryParams: { q: term, page: 1 },
@@ -167,8 +230,8 @@ export class StoreLayoutComponent implements OnInit {
   protected async onLogoutClick(): Promise<void> {
     const isLeavingCheckout = this.router.url.startsWith('/checkout');
 
-    // Checkout must be left while the authenticated session is still valid so
+    // Leave checkout before closing the authenticated session so its component
-    // its CanDeactivate guard can cancel the pending purchase.
+    // can stop payment polling cleanly. The checkout itself remains pending.
     if (isLeavingCheckout) {
       const navigationSucceeded = await this.router.navigate(['/']);
 
@@ -216,14 +279,21 @@ export class StoreLayoutComponent implements OnInit {
         cart_id: cart.id,
       });
 
-      this.cartService.clearCart();
       this.isCartOpen.set(false);
-      await this.router.navigate(['/checkout'], {
+      await this.router.navigate(['/checkout', purchase.id]);
-        queryParams: { purchase: purchase.id },
-      });
     } catch (error) {
       console.error('Failed to create cart purchase:', error);
-      this.toastService.danger('No se pudo iniciar la compra.');
+      const message =
+        error instanceof HttpErrorResponse && typeof error.error?.message === 'string'
+          ? error.error.message
+          : 'No se pudo iniciar la compra.';
+      this.toastService.danger(message);
+
+      if (error instanceof HttpErrorResponse && isExpiredStockReservationResponse(error.error)) {
+        this.cartService.loadCart(true).subscribe({
+          error: (refreshError) => console.error('Error refreshing expired cart', refreshError),
+        });
+      }
     } finally {
       this.isCreatingPurchase.set(false);
     }

src/app/core/services/auth/auth.guards.spec.ts

@@ -24,12 +24,12 @@ describe('auth guards', () => {
     });
 
     const result = TestBed.runInInjectionContext(() =>
-      authGuard(null as never, { url: '/checkout?mode=direct' } as never),
+      authGuard(null as never, { url: '/checkout/25' } as never),
     );
 
     expect(result instanceof UrlTree).toBe(true);
     expect(TestBed.inject(Router).serializeUrl(result as UrlTree)).toBe(
-      '/login?returnUrl=%2Fcheckout%3Fmode%3Ddirect',
+      '/login?returnUrl=%2Fcheckout%2F25',
     );
   });
 
@@ -39,7 +39,7 @@ describe('auth guards', () => {
     });
 
     const result = TestBed.runInInjectionContext(() =>
-      authGuard(null as never, { url: '/checkout' } as never),
+      authGuard(null as never, { url: '/checkout/25' } as never),
     );
 
     expect(result).toBe(true);

src/app/core/services/cart/cart.interface.ts

@@ -24,6 +24,7 @@ export interface CartItem {
   nombre: string | null;
   imagen: string | null;
   variant: CartItemVariant | null;
+  variants?: CartItemVariant[];
 }
 
 export interface Cart {

src/app/core/services/cart/cart.service.spec.ts

@@ -7,11 +7,13 @@ import { CartService } from './cart.service';
 import { TenantService } from '../tenant.service';
 import { Cart } from './cart.interface';
 import { LOADING_MODE } from '../global-loading/loading-mode';
+import { CatalogAvailabilityService } from '../catalog/catalog-availability.service';
 
 describe('CartService', () => {
   let service: CartService;
   let httpMock: HttpTestingController;
   let tenantServiceMock: any;
+  let catalogAvailabilityService: CatalogAvailabilityService;
 
   const mockCart: Cart = {
     id: 123,
@@ -53,6 +55,7 @@ describe('CartService', () => {
     });
 
     service = TestBed.inject(CartService);
+    catalogAvailabilityService = TestBed.inject(CatalogAvailabilityService);
     httpMock = TestBed.inject(HttpTestingController);
   });
 
@@ -80,6 +83,20 @@ describe('CartService', () => {
     req.flush({ data: mockCart });
   });
 
+  it('refreshes catalog availability only after the expired cart has been reloaded', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
+    service.loadCart(true).subscribe();
+
+    expect(availabilityChanged).not.toHaveBeenCalled();
+    const req = httpMock.expectOne('http://api.test/tenants/acme/cart');
+    req.flush({ data: mockCart });
+
+    expect(service.cart()).toEqual(mockCart);
+    expect(availabilityChanged).toHaveBeenCalledOnce();
+  });
+
   it('propagates a custom loading mode to the request context', () => {
     service.withCustomLoading().loadCart().subscribe();
 
@@ -101,6 +118,9 @@ describe('CartService', () => {
   });
 
   it('should add item and update signal', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
     service.addItem(5, 10, 2).subscribe((res) => {
       expect(res.data).toEqual(mockCart);
       expect(service.cart()).toEqual(mockCart);
@@ -115,9 +135,13 @@ describe('CartService', () => {
     });
     expect(req.request.withCredentials).toBe(true);
     req.flush({ data: mockCart });
+    expect(availabilityChanged).toHaveBeenCalledOnce();
   });
 
   it('should update item quantity and update signal', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
     const updatedCart = { ...mockCart, subtotal: '30.00' };
     updatedCart.items[0].cantidad = 3;
 
@@ -131,9 +155,13 @@ describe('CartService', () => {
     expect(req.request.body).toEqual({ cantidad: 3 });
     expect(req.request.withCredentials).toBe(true);
     req.flush({ data: updatedCart });
+    expect(availabilityChanged).toHaveBeenCalledOnce();
   });
 
   it('should remove item and update signal', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
     const emptyCart: Cart = {
       id: 123,
       tenant_codigo: 'acme',
@@ -151,5 +179,18 @@ describe('CartService', () => {
     expect(req.request.method).toBe('DELETE');
     expect(req.request.withCredentials).toBe(true);
     req.flush({ data: emptyCart });
+    expect(availabilityChanged).toHaveBeenCalledOnce();
+  });
+
+  it('does not notify an availability change when a cart mutation fails', () => {
+    const availabilityChanged = vi.fn();
+    catalogAvailabilityService.availabilityChanged$.subscribe(availabilityChanged);
+
+    service.removeItem(10).subscribe({ error: vi.fn() });
+
+    const req = httpMock.expectOne('http://api.test/tenants/acme/cart/items/10');
+    req.flush({ message: 'Error' }, { status: 500, statusText: 'Server Error' });
+
+    expect(availabilityChanged).not.toHaveBeenCalled();
   });
 });

src/app/core/services/cart/cart.service.ts

@@ -3,6 +3,7 @@ import { catchError, map, Observable, tap } from 'rxjs';
 
 import { ApiResponse } from '../api-response.interface';
 import { BaseApiService } from '../base-api.service';
+import { CatalogAvailabilityService } from '../catalog/catalog-availability.service';
 import { TenantService } from '../tenant.service';
 import { Cart } from './cart.interface';
 
@@ -10,6 +11,7 @@ import { Cart } from './cart.interface';
   providedIn: 'root',
 })
 export class CartService extends BaseApiService {
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly tenantService = inject(TenantService);
 
   private readonly cartState = signal<Cart | null>(null);
@@ -32,14 +34,19 @@ export class CartService extends BaseApiService {
     });
   }
 
-  loadCart(): Observable<Cart> {
+  loadCart(refreshCatalogAvailability = false): Observable<Cart> {
     return this.http
       .get<ApiResponse<Cart>>(`${this.tenantApiUrl}/cart`, {
         withCredentials: true,
       })
       .pipe(
         map((response) => response.data),
-        tap((cart) => this.cartState.set(cart)),
+        tap((cart) => {
+          this.cartState.set(cart);
+          if (refreshCatalogAvailability) {
+            this.catalogAvailabilityService.notifyAvailabilityChanged();
+          }
+        }),
       );
   }
 
@@ -60,6 +67,7 @@ export class CartService extends BaseApiService {
       .pipe(
         tap((response) => {
           this.cartState.set(response.data);
+          this.catalogAvailabilityService.notifyAvailabilityChanged();
           this.isUpdatingState.set(false);
         }),
         catchError((error) => {
@@ -93,6 +101,7 @@ export class CartService extends BaseApiService {
       .pipe(
         tap((response) => {
           this.cartState.set(response.data);
+          this.catalogAvailabilityService.notifyAvailabilityChanged();
           this.isUpdatingState.set(false);
         }),
         catchError((error) => {
@@ -111,6 +120,7 @@ export class CartService extends BaseApiService {
       .pipe(
         tap((response) => {
           this.cartState.set(response.data);
+          this.catalogAvailabilityService.notifyAvailabilityChanged();
           this.isUpdatingState.set(false);
         }),
         catchError((error) => {

src/app/core/services/catalog/catalog-availability.service.ts

@@ -0,0 +1,15 @@
+import { Injectable } from '@angular/core';
+import { Observable, Subject } from 'rxjs';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class CatalogAvailabilityService {
+  private readonly availabilityChangedSubject = new Subject<void>();
+
+  readonly availabilityChanged$: Observable<void> = this.availabilityChangedSubject.asObservable();
+
+  notifyAvailabilityChanged(): void {
+    this.availabilityChangedSubject.next();
+  }
+}

src/app/core/services/catalog/catalog.interface.ts

@@ -66,7 +66,8 @@ export interface CatalogItemVariant {
   event_date_id?: number | null;
   event_date_ids?: number[];
   event_dates?: string[];
-  stock_tecnico: number | null;
+  maximum_addable_quantity?: number | null;
+  unavailable_message?: string | null;
   minimum_use_date?: string | null;
   maximum_use_date?: string | null;
   effective_minimum_use_date?: string | null;
@@ -98,7 +99,7 @@ export interface CatalogItemDetail {
   attributes: ProductAttribute[];
   variants: CatalogItemVariant[];
   selected_variant?: SelectedCatalogItemVariant;
-  stock_tecnico?: number | null;
+  maximum_addable_quantity?: number | null;
   images?: string[];
 }
 
@@ -113,7 +114,8 @@ export interface CatalogFeaturedItemVariant {
   id: number;
   descripcion?: string | null;
   precio?: string;
-  stock_tecnico: number | null;
+  maximum_addable_quantity?: number | null;
+  unavailable_message?: string | null;
   values: Record<string, CatalogVariantValue>;
 }
 
@@ -145,7 +147,8 @@ export interface CatalogFeaturedItem {
   descripcion?: string | null;
   precio: number | string;
   image?: string | null;
-  stock_tecnico?: number | null;
+  maximum_addable_quantity?: number | null;
+  unavailable_message?: string | null;
   variants?: CatalogFeaturedItemVariant[];
 }
 
@@ -155,6 +158,7 @@ export type CatalogFeaturedItems =
 
 export interface CatalogFeaturedGroup {
   id: number;
+  code: string;
   title: string;
   layout: CatalogProductLayout;
   group_layout: CatalogGroupLayout;

src/app/core/services/catalog/catalog.service.ts

@@ -14,7 +14,6 @@ import {
   CatalogItemDetail,
   CatalogVariantOptionsResponse,
   CategoryItemsResponse,
-  Product,
 } from './catalog.interface';
 
 type HttpParamValue = string | number | boolean | readonly (string | number | boolean)[];
@@ -33,12 +32,6 @@ export class CatalogService extends BaseApiService {
     return this.tenantService.getTenantApiUrl();
   }
 
-  getProductos(params?: ApiPaginationQueryParams): Observable<ApiPaginatedResponse<Product[]>> {
-    return this.http.get<ApiPaginatedResponse<Product[]>>(`${this.tenantApiUrl}/productos`, {
-      params: this.buildHttpParams(params),
-    });
-  }
-
   getCatalog(): Observable<CatalogFeaturedGroup[]> {
     return this.http.get<CatalogFeaturedGroup[]>(`${this.tenantApiUrl}/catalog`);
   }

src/app/core/services/checkout-countdown.service.spec.ts

@@ -0,0 +1,69 @@
+import { TestBed } from '@angular/core/testing';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+
+import { CheckoutCountdownService } from './checkout-countdown.service';
+
+describe('CheckoutCountdownService', () => {
+  let service: CheckoutCountdownService;
+
+  beforeEach(() => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date('2026-08-27T12:00:00.000Z'));
+    TestBed.configureTestingModule({ providers: [CheckoutCountdownService] });
+    service = TestBed.inject(CheckoutCountdownService);
+  });
+
+  afterEach(() => {
+    service.clear();
+    vi.useRealTimers();
+  });
+
+  it('counts down from the checkout server timing without depending on the client clock', () => {
+    service.synchronize({
+      expires_at: '2026-08-27T15:10:00.000Z',
+      expires_in_seconds: 600,
+      server_time: '2026-08-27T15:00:00.000Z',
+    });
+
+    expect(service.remainingSeconds()).toBe(600);
+
+    vi.advanceTimersByTime(1_000);
+
+    expect(service.remainingSeconds()).toBe(599);
+  });
+
+  it('recalculates against the deadline after a delayed browser interval', () => {
+    service.synchronize({
+      expires_at: null,
+      expires_in_seconds: 10,
+      server_time: '2026-08-27T15:00:00.000Z',
+    });
+
+    vi.setSystemTime(new Date('2026-08-27T12:00:07.000Z'));
+    vi.advanceTimersByTime(1_000);
+
+    expect(service.remainingSeconds()).toBe(2);
+  });
+
+  it('clears the countdown when checkout has no expiration', () => {
+    service.synchronize({
+      expires_at: null,
+      expires_in_seconds: null,
+      server_time: '2026-08-27T15:00:00.000Z',
+    });
+
+    expect(service.remainingSeconds()).toBeNull();
+  });
+
+  it('keeps the active countdown when a partial checkout response omits timing fields', () => {
+    service.synchronize({
+      expires_at: null,
+      expires_in_seconds: 10,
+      server_time: '2026-08-27T15:00:00.000Z',
+    });
+
+    service.synchronize({});
+
+    expect(service.remainingSeconds()).toBe(10);
+  });
+});

src/app/core/services/checkout-countdown.service.ts

@@ -0,0 +1,97 @@
+import { Injectable, OnDestroy, signal } from '@angular/core';
+
+export interface CheckoutTiming {
+  expires_at: string | null;
+  expires_in_seconds: number | null;
+  server_time: string;
+}
+
+@Injectable({
+  providedIn: 'root',
+})
+export class CheckoutCountdownService implements OnDestroy {
+  private readonly remainingSecondsState = signal<number | null>(null);
+  private deadlineMs: number | null = null;
+  private intervalId: ReturnType<typeof setInterval> | null = null;
+
+  readonly remainingSeconds = this.remainingSecondsState.asReadonly();
+
+  synchronize(timing: Partial<CheckoutTiming>): void {
+    const remainingSeconds = this.resolveRemainingSeconds(timing);
+
+    if (remainingSeconds === undefined) {
+      return;
+    }
+
+    if (remainingSeconds === null) {
+      this.clear();
+      return;
+    }
+
+    this.stopInterval();
+    this.deadlineMs = Date.now() + remainingSeconds * 1_000;
+    this.updateRemainingSeconds();
+
+    if (remainingSeconds > 0) {
+      this.intervalId = setInterval(() => this.updateRemainingSeconds(), 1_000);
+    }
+  }
+
+  clear(): void {
+    this.stopInterval();
+    this.deadlineMs = null;
+    this.remainingSecondsState.set(null);
+  }
+
+  ngOnDestroy(): void {
+    this.clear();
+  }
+
+  private resolveRemainingSeconds(timing: Partial<CheckoutTiming>): number | null | undefined {
+    if (timing.expires_at === null && timing.expires_in_seconds === null) {
+      return null;
+    }
+
+    const expiresAt =
+      typeof timing.expires_at === 'string' ? Date.parse(timing.expires_at) : Number.NaN;
+    const serverTime =
+      typeof timing.server_time === 'string' ? Date.parse(timing.server_time) : Number.NaN;
+
+    if (Number.isFinite(expiresAt) && Number.isFinite(serverTime)) {
+      return Math.max(0, Math.ceil((expiresAt - serverTime) / 1_000));
+    }
+
+    if (
+      typeof timing.expires_in_seconds === 'number' &&
+      Number.isFinite(timing.expires_in_seconds)
+    ) {
+      return Math.max(0, Math.ceil(timing.expires_in_seconds));
+    }
+
+    if (Number.isFinite(expiresAt)) {
+      return Math.max(0, Math.ceil((expiresAt - Date.now()) / 1_000));
+    }
+
+    return undefined;
+  }
+
+  private updateRemainingSeconds(): void {
+    if (this.deadlineMs === null) {
+      return;
+    }
+
+    const remainingSeconds = Math.max(0, Math.ceil((this.deadlineMs - Date.now()) / 1_000));
+    this.remainingSecondsState.set(remainingSeconds);
+
+    if (remainingSeconds === 0) {
+      this.stopInterval();
+    }
+  }
+
+  private stopInterval(): void {
+    if (this.intervalId !== null) {
+      clearInterval(this.intervalId);
+      this.intervalId = null;
+    }
+  }
+}

src/app/core/services/checkout.service.spec.ts

@@ -1,9 +1,10 @@
 import { provideHttpClient } from '@angular/common/http';
 import { HttpTestingController, provideHttpClientTesting } from '@angular/common/http/testing';
 import { TestBed } from '@angular/core/testing';
-import { afterEach, beforeEach, describe, expect, it } from 'vitest';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { environment } from '../../../environments/environment';
+import { CatalogAvailabilityService } from './catalog/catalog-availability.service';
 import { CheckoutService } from './checkout.service';
 
 describe('CheckoutService', () => {
@@ -38,4 +39,59 @@ describe('CheckoutService', () => {
 
     await expect(purchasePromise).resolves.toMatchObject({ id: 55 });
   });
+
+  it('refreshes catalog availability when starting checkout fails', async () => {
+    const catalogAvailabilityService = TestBed.inject(CatalogAvailabilityService);
+    const notifyAvailabilityChanged = vi.spyOn(
+      catalogAvailabilityService,
+      'notifyAvailabilityChanged',
+    );
+    const purchasePromise = service.startCheckout('desfile', { cart_id: 12 });
+    const request = httpMock.expectOne(`${environment.url}tenants/desfile/compras/start-checkout`);
+
+    request.flush(
+      { message: 'No hay stock disponible.' },
+      { status: 422, statusText: 'Unprocessable Entity' },
+    );
+
+    await expect(purchasePromise).rejects.toBeTruthy();
+    expect(notifyAvailabilityChanged).toHaveBeenCalledOnce();
+  });
+
+  it('waits for the expired cart refresh before refreshing catalog availability', async () => {
+    const catalogAvailabilityService = TestBed.inject(CatalogAvailabilityService);
+    const notifyAvailabilityChanged = vi.spyOn(
+      catalogAvailabilityService,
+      'notifyAvailabilityChanged',
+    );
+    const purchasePromise = service.startCheckout('desfile', { cart_id: 12 });
+    const request = httpMock.expectOne(`${environment.url}tenants/desfile/compras/start-checkout`);
+
+    request.flush(
+      {
+        code: 'stock_reservation.expired',
+        message: 'La reserva de stock venció.',
+      },
+      { status: 422, statusText: 'Unprocessable Entity' },
+    );
+
+    await expect(purchasePromise).rejects.toBeTruthy();
+    expect(notifyAvailabilityChanged).not.toHaveBeenCalled();
+  });
+
+  it('preserves checkout timing fields when completing a purchase', async () => {
+    const purchasePromise = service.completePurchase('desfile', 55);
+    const request = httpMock.expectOne(`${environment.url}tenants/desfile/compras/55/complete`);
+    const response = {
+      status: 'pending_payment',
+      expires_at: '2026-08-26T20:00:00.000Z',
+      expires_in_seconds: 900,
+      server_time: '2026-08-26T19:45:00.000Z',
+    };
+
+    expect(request.request.method).toBe('POST');
+    request.flush({ data: response });
+
+    await expect(purchasePromise).resolves.toEqual(response);
+  });
 });

src/app/core/services/checkout.service.ts

@@ -1,8 +1,11 @@
-import { Injectable } from '@angular/core';
+import { inject, Injectable } from '@angular/core';
 import { firstValueFrom } from 'rxjs';
 
 import { environment } from '../../../environments/environment';
+import { ApiPaginatedResponse } from './api-paginated-response.interface';
+import { ApiPaginationQueryParams } from './api-pagination-query-params.interface';
 import { BaseApiService } from './base-api.service';
+import { CatalogAvailabilityService } from './catalog/catalog-availability.service';
 
 export interface UpdatePurchaseCustomerPayload {
   dni: string;
@@ -43,6 +46,21 @@ export function isInsufficientStockResponse(value: unknown): value is Insufficie
   );
 }
 
+export interface ExpiredStockReservationResponse {
+  code: 'stock_reservation.expired';
+  message: string;
+}
+
+export function isExpiredStockReservationResponse(
+  value: unknown,
+): value is ExpiredStockReservationResponse {
+  return (
+    typeof value === 'object' &&
+    value !== null &&
+    (value as Partial<ExpiredStockReservationResponse>).code === 'stock_reservation.expired'
+  );
+}
+
 export type StartCheckoutPayload =
   | {
       cart_id: number;
@@ -53,6 +71,9 @@ export type StartCheckoutPayload =
 
 export interface PurchaseStatusResponse {
   status: string | null;
+  expires_at: string | null;
+  expires_in_seconds: number | null;
+  server_time: string;
 }
 
 export interface PurchaseSummaryResponse extends PurchaseStatusResponse {
@@ -89,7 +110,6 @@ export interface PurchaseDetailResponse extends PurchaseStatusResponse {
   user_id: number;
   created_at: string | null;
   payment_method: string | null;
-  expires_at: string | null;
   dni: string | null;
   transfer_payer_dni: string | null;
   telefono: string | null;
@@ -107,24 +127,34 @@ export interface PurchaseDetailResponse extends PurchaseStatusResponse {
   providedIn: 'root',
 })
 export class CheckoutService extends BaseApiService {
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
+
   async startCheckout(
     tenantCode: string,
     payload: StartCheckoutPayload,
   ): Promise<PurchaseDetailResponse> {
-    const response = await firstValueFrom(
+    try {
-      this.http.post<{ data?: PurchaseDetailResponse } | PurchaseDetailResponse>(
+      const response = await firstValueFrom(
-        `${environment.url}tenants/${tenantCode}/compras/start-checkout`,
+        this.http.post<{ data?: PurchaseDetailResponse } | PurchaseDetailResponse>(
-        payload,
+          `${environment.url}tenants/${tenantCode}/compras/start-checkout`,
-      ),
+          payload,
-    );
+        ),
+      );
 
-    const purchase = this.extractResponseData<PurchaseDetailResponse>(response);
+      const purchase = this.extractResponseData<PurchaseDetailResponse>(response);
 
-    if (!purchase?.id) {
+      if (!purchase?.id) {
-      throw new Error('Error al crear la compra.');
+        throw new Error('Error al crear la compra.');
+      }
+
+      return purchase;
+    } catch (error) {
+      const responseBody = (error as { error?: unknown } | null)?.error;
+      if (!isExpiredStockReservationResponse(responseBody)) {
+        this.catalogAvailabilityService.notifyAvailabilityChanged();
+      }
+      throw error;
     }
-
-    return purchase;
   }
 
   async generatePaymentIntent(
@@ -169,65 +199,6 @@ export class CheckoutService extends BaseApiService {
     return purchase;
   }
 
-  async updateItemQuantity(
-    tenantCode: string,
-    purchaseId: number,
-    itemId: number,
-    quantity: number,
-  ): Promise<PurchaseDetailResponse> {
-    const response = await firstValueFrom(
-      this.http.patch<{ data?: PurchaseDetailResponse } | PurchaseDetailResponse>(
-        `${environment.url}tenants/${tenantCode}/compras/${purchaseId}/items/${itemId}`,
-        { quantity },
-      ),
-    );
-
-    const purchase = this.extractResponseData<PurchaseDetailResponse>(response);
-    if (!purchase) {
-      throw new Error('Error al actualizar la cantidad del producto.');
-    }
-
-    return purchase;
-  }
-
-  async prepareItemEditing(
-    tenantCode: string,
-    purchaseId: number,
-  ): Promise<PurchaseDetailResponse> {
-    const response = await firstValueFrom(
-      this.http.post<{ data?: PurchaseDetailResponse } | PurchaseDetailResponse>(
-        `${environment.url}tenants/${tenantCode}/compras/${purchaseId}/edit-items`,
-        {},
-      ),
-    );
-
-    const purchase = this.extractResponseData<PurchaseDetailResponse>(response);
-    if (!purchase) {
-      throw new Error('Error al preparar la compra para editarla.');
-    }
-
-    return purchase;
-  }
-
-  async completePurchase(tenantCode: string, purchaseId: number): Promise<PurchaseStatusResponse> {
-    const response = await firstValueFrom(
-      this.http.post<{ data?: PurchaseStatusResponse } | PurchaseStatusResponse>(
-        `${environment.url}tenants/${tenantCode}/compras/${purchaseId}/complete`,
-        {},
-      ),
-    );
-
-    const purchase = this.extractResponseData<PurchaseStatusResponse>(response);
-
-    if (!purchase) {
-      throw new Error('Error al finalizar la compra.');
-    }
-
-    return {
-      status: purchase.status ?? null,
-    };
-  }
-
   async submitPurchaseForReview(
     tenantCode: string,
     purchaseId: number,
@@ -244,7 +215,7 @@ export class CheckoutService extends BaseApiService {
       throw new Error('Error al enviar la compra a revisi\u00f3n.');
     }
 
-    return { status: purchase.status ?? null };
+    return purchase;
   }
 
   async cancelPurchase(tenantCode: string, purchaseId: number): Promise<PurchaseStatusResponse> {
@@ -260,18 +231,26 @@ export class CheckoutService extends BaseApiService {
       throw new Error('Error al cancelar la compra.');
     }
 
-    return { status: purchase.status ?? null };
+    return purchase;
   }
 
   async getPurchases(
     tenantCode: string,
     status?: string,
-  ): Promise<{ data: PurchaseSummaryResponse[] }> {
+    pagination: ApiPaginationQueryParams = {},
-    let url = `${environment.url}tenants/${tenantCode}/compras`;
+  ): Promise<ApiPaginatedResponse<PurchaseSummaryResponse[]>> {
-    if (status) {
+    const params: Record<string, string | number> = {};
-      url += `?status=${status}`;
+
-    }
+    if (status) params['status'] = status;
-    const response = await firstValueFrom(this.http.get<{ data: PurchaseSummaryResponse[] }>(url));
+    if (pagination.page) params['page'] = pagination.page;
+    if (pagination.per_page) params['per_page'] = pagination.per_page;
+
+    const response = await firstValueFrom(
+      this.http.get<ApiPaginatedResponse<PurchaseSummaryResponse[]>>(
+        `${environment.url}tenants/${tenantCode}/compras`,
+        { params },
+      ),
+    );
     if (!response) {
       throw new Error('Error al obtener las compras.');
     }

src/app/core/services/tenant.interface.ts

@@ -1,5 +1,15 @@
 import { ApiResponse } from './api-response.interface';
 
+export type CartEditingPolicyCode = 'disabled' | 'quantity_and_remove' | 'full';
+
+export interface CartEditingPolicy {
+  code: CartEditingPolicyCode;
+  allow_modify: boolean;
+  allow_delete: boolean;
+  allow_update_quantity: boolean;
+  allow_update_variant: boolean;
+}
+
 export interface BankAccount {
   id: number;
   tenant_code: string;
@@ -103,6 +113,8 @@ export interface Tenant {
   dominio: string;
   base_path?: string;
   site_title?: string | null;
+  address?: string | null;
+  phone?: string | null;
   favicon?: string | null;
   primary_color: string;
   secondary_color: string;
@@ -127,7 +139,8 @@ export interface Tenant {
   display_categories?: boolean;
   display_seach_bar?: boolean;
   display_cart?: boolean;
-  cart_editing_enabled?: boolean;
+  cart_editing_policy?: CartEditingPolicy;
+  checkout_editing_policy?: CartEditingPolicy;
   display_cart_item_images?: boolean;
   social_media?: SocialMedia[];
   menues?: Menu[];

src/app/features/componentes-test/pages/reutilizables-test-page/reutilizables-test-page.component.ts

@@ -232,7 +232,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1001,
         precio: 250000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
           sector: ticketOption('a', 'Sector A'),
@@ -243,7 +243,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1002,
         precio: 250000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
           sector: ticketOption('a', 'Sector A'),
@@ -254,7 +254,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1003,
         precio: 250000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
           sector: ticketOption('c', 'Sector C'),
@@ -265,7 +265,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1004,
         precio: 200000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
           sector: ticketOption('a', 'Sector A'),
@@ -276,7 +276,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1005,
         precio: 200000,
-        stock_tecnico: 0,
+        maximum_addable_quantity: 0,
         values: {
           tipo: ticketOption('vip_lunch', 'VIP + Lunch'),
           sector: ticketOption('a', 'Sector A'),
@@ -287,7 +287,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1006,
         precio: 100000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('general', 'General'),
           sector: ticketOption('b', 'Sector B'),
@@ -298,7 +298,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1007,
         precio: 100000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('general', 'General'),
           sector: ticketOption('b', 'Sector B'),
@@ -309,7 +309,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1008,
         precio: 90000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('general', 'General'),
           sector: ticketOption('d', 'Sector D'),
@@ -320,7 +320,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1009,
         precio: 65000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('general', 'General'),
           sector: ticketOption('d', 'Sector D'),
@@ -331,7 +331,7 @@ export class ReutilizablesTestPageComponent {
       {
         id: 1010,
         precio: 40000,
-        stock_tecnico: 1,
+        maximum_addable_quantity: 1,
         values: {
           tipo: ticketOption('general', 'General'),
           sector: ticketOption('d', 'Sector D'),

src/app/features/store/components/menu-content-section/menu-content-section.component.scss

@@ -11,7 +11,7 @@
 .menu-content-section__header {
   display: flex;
   align-items: center;
-  gap: 0.75rem;
+  gap: var(--menu-content-prefix-gap, 0.75rem);
   margin-bottom: 1.25rem;
 }
 

src/app/features/store/components/product-attribute-selector/product-attribute-selector.component.spec.ts

@@ -31,7 +31,7 @@ describe('ProductAttributeSelectorComponent', () => {
     fixture.componentRef.setInput('variants', [
       {
         id: 1,
-        stock_tecnico: null,
+        maximum_addable_quantity: null,
         values: { size: 'S' },
       },
     ]);
@@ -51,12 +51,12 @@ describe('ProductAttributeSelectorComponent', () => {
     fixture.componentRef.setInput('variants', [
       {
         id: 1,
-        stock_tecnico: 0,
+        maximum_addable_quantity: 0,
         values: { size: 'S' },
       },
       {
         id: 2,
-        stock_tecnico: 2,
+        maximum_addable_quantity: 2,
         values: { size: 'M' },
       },
     ]);
@@ -92,9 +92,9 @@ describe('ProductAttributeSelectorComponent', () => {
     ]);
     fixture.componentRef.setInput('inventoryPolicy', 'unlimited');
     fixture.componentRef.setInput('variants', [
-      { id: 1, stock_tecnico: null, values: { event_date: '1' } },
+      { id: 1, maximum_addable_quantity: null, values: { event_date: '1' } },
-      { id: 2, stock_tecnico: null, values: { event_date: '2' } },
+      { id: 2, maximum_addable_quantity: null, values: { event_date: '2' } },
-      { id: 3, stock_tecnico: null, values: { event_date: ['1', '2'] } },
+      { id: 3, maximum_addable_quantity: null, values: { event_date: ['1', '2'] } },
     ]);
     fixture.detectChanges();
 
@@ -135,8 +135,8 @@ describe('ProductAttributeSelectorComponent', () => {
     ]);
     fixture.componentRef.setInput('inventoryPolicy', 'unlimited');
     fixture.componentRef.setInput('variants', [
-      { id: 1, stock_tecnico: null, values: { size: 'S', internal_type: 'adult' } },
+      { id: 1, maximum_addable_quantity: null, values: { size: 'S', internal_type: 'adult' } },
-      { id: 2, stock_tecnico: null, values: { size: 'M', internal_type: 'child' } },
+      { id: 2, maximum_addable_quantity: null, values: { size: 'M', internal_type: 'child' } },
     ]);
     fixture.detectChanges();
 

src/app/features/store/components/product-attribute-selector/product-attribute-selector.component.ts

@@ -227,7 +227,7 @@ export class ProductAttributeSelectorComponent {
   }
 
   private isVariantAvailable(variant: CatalogItemVariant): boolean {
-    return this.inventoryPolicy() === 'unlimited' || (variant.stock_tecnico ?? 0) > 0;
+    return variant.maximum_addable_quantity !== 0;
   }
 
   private findFirstHexValue(value: unknown): string | null {

src/app/features/store/pages/account-page/components/purchase-list-item/purchase-list-item.html

@@ -1,11 +1,29 @@
-    <div class="purchase-item" [routerLink]="[purchase.id]" style="cursor: pointer;">
+<div class="purchase-item" [routerLink]="[purchase.id]">
-      <div class="purchase-info">
+  <div class="purchase-info">
-        <span class="purchase-id">Compra {{ purchase.id }}.</span>
+    <span class="purchase-id">Compra {{ purchase.id }}.</span>
-        <span class="purchase-date">Fecha de compra: {{ purchase.date }}</span>
+    <span class="purchase-date">Fecha de compra: {{ purchase.date }}</span>
-      </div>
+  </div>
-      <div class="purchase-action">
+
-        <svg width="8" height="14" viewBox="0 0 8 14" fill="none" xmlns="http://www.w3.org/2000/svg" class="arrow-icon">
+  @if (purchase.statusMessage) {
-          <path d="M1 1L7 7L1 13" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
+    <span class="purchase-status">{{ purchase.statusMessage }}</span>
-        </svg>
+  }
-      </div>
+
-    </div>
+  <div class="purchase-action">
+    <svg
+      width="8"
+      height="14"
+      viewBox="0 0 8 14"
+      fill="none"
+      xmlns="http://www.w3.org/2000/svg"
+      class="arrow-icon"
+    >
+      <path
+        d="M1 1L7 7L1 13"
+        stroke="currentColor"
+        stroke-width="2"
+        stroke-linecap="round"
+        stroke-linejoin="round"
+      />
+    </svg>
+  </div>
+</div>

src/app/features/store/pages/account-page/components/purchase-list-item/purchase-list-item.scss

@@ -2,33 +2,57 @@
   display: flex;
   justify-content: space-between;
   align-items: center;
-  padding:  16px;
+  gap: 16px;
-  padding-left:0;
+  padding: 16px;
-  transition: box-shadow 0.2s, border-radius 0.2s;
+  padding-left: 0;
+  transition:
+    box-shadow 0.2s,
+    border-radius 0.2s;
   cursor: pointer;
 }
+
 .purchase-item:hover {
   box-shadow: 0px 0px 30px 0px rgba(0, 0, 0, 0.07);
   border-radius: 8px;
 }
+
 .purchase-item:hover .arrow-icon {
-  color: #5b75ff; /* Blue on hover */
+  color: var(--color-primary, var(--tenant-primary, #5b75ff));
 }
+
 .purchase-info {
   display: flex;
   flex-direction: column;
   gap: 4px;
 }
+
 .purchase-id {
   font-weight: bold;
   color: #666666;
   font-size: 13px;
 }
+
 .purchase-date {
   font-weight: 325;
   color: #666666;
   font-size: 10px;
 }
+
+.purchase-status {
+  margin-left: auto;
+  margin-right: 20px;
+  color: var(--color-primary, var(--tenant-primary, #5b75ff));
+  font-size: 16px;
+  font-weight: 700;
+  text-align: right;
+}
+
+.purchase-action {
+  display: flex;
+  flex-shrink: 0;
+  align-items: center;
+}
+
 .arrow-icon {
   width: 8px;
   height: 14px;

src/app/features/store/pages/account-page/components/purchase-list-item/purchase-list-item.ts

@@ -9,6 +9,5 @@ import { RouterLink } from '@angular/router';
   styleUrl: './purchase-list-item.scss',
 })
 export class PurchaseListItem {
-  @Input() purchase!: { id: number; date: string };
+  @Input() purchase!: { id: number; date: string; statusMessage?: string | null };
 }
-

src/app/features/store/pages/account-page/components/purchase-list/purchase-list.html

@@ -1,29 +1,36 @@
-    <div class="purchase-list-container">
+<div class="purchase-list-container">
-      <ng-container *ngIf="isLoading(); else contentTpl">
+  @if (isLoading()) {
-        <!-- Skeleton -->
+    @for (i of [1, 2, 3, 4]; track i) {
-        <div class="skeleton-item" *ngFor="let i of [1, 2, 3, 4]">
+      <div class="skeleton-item">
-          <div class="skeleton-info">
+        <div class="skeleton-info">
-            <div class="skeleton-id"></div>
+          <div class="skeleton-id"></div>
-            <div class="skeleton-date"></div>
+          <div class="skeleton-date"></div>
-          </div>
-          <div class="skeleton-action"></div>
         </div>
-      </ng-container>
+        <div class="skeleton-action"></div>
+      </div>
+    }
+  } @else {
+    @if (purchases().length > 0) {
+      @for (purchase of purchases(); track purchase.id; let last = $last) {
+        <app-purchase-list-item [purchase]="purchase"></app-purchase-list-item>
+        @if (!last) {
+          <div class="purchase-divider"></div>
+        }
+      }
+    } @else {
+      <div class="empty-state">Aún no hay compras realizadas</div>
+    }
 
-      <ng-template #contentTpl>
+    @if (pagination(); as paginationData) {
-        <ng-container *ngIf="purchases().length > 0; else emptyTpl">
+      @if (paginationData.last_page > 1) {
-          <ng-container *ngFor="let purchase of purchases(); let last = last">
+        <app-paginator
-            <app-purchase-list-item 
+          class="purchase-list__paginator"
-              [purchase]="purchase">
+          [page]="paginationData.current_page"
-            </app-purchase-list-item>
+          [totalPages]="paginationData.last_page"
-            <div class="purchase-divider" *ngIf="!last"></div>
+          [disabled]="isLoading()"
-          </ng-container>
+          (pageChange)="onPageChange($event)"
-        </ng-container>
+        ></app-paginator>
-      </ng-template>
+      }
-
+    }
-      <ng-template #emptyTpl>
+  }
-        <div class="empty-state">
+</div>
-          Aún no hay compras realizadas
-        </div>
-      </ng-template>
-    </div>

src/app/features/store/pages/account-page/components/purchase-list/purchase-list.scss

@@ -4,9 +4,14 @@
   width: 100%;
 }
 
+.purchase-list__paginator {
+  align-self: center;
+  margin-top: 1.5rem;
+}
+
 .purchase-divider {
   height: 1px;
-  background-color: #DDDDDD;
+  background-color: #dddddd;
   width: 100%;
 }
 
@@ -39,7 +44,7 @@
 .skeleton-id {
   width: 100px;
   height: 1rem;
-  background-color: #EEEEEE;
+  background-color: #eeeeee;
   border-radius: 4px;
   animation: pulse 1.5s infinite ease-in-out;
 }
@@ -47,7 +52,7 @@
 .skeleton-date {
   width: 150px;
   height: 0.8rem;
-  background-color: #EEEEEE;
+  background-color: #eeeeee;
   border-radius: 4px;
   animation: pulse 1.5s infinite ease-in-out;
 }
@@ -55,19 +60,19 @@
 .skeleton-action {
   width: 24px;
   height: 24px;
-  background-color: #EEEEEE;
+  background-color: #eeeeee;
   border-radius: 50%;
   animation: pulse 1.5s infinite ease-in-out;
 }
 
 @keyframes pulse {
   0% {
-    background-color: #EEEEEE;
+    background-color: #eeeeee;
   }
   50% {
-    background-color: #E0E0E0;
+    background-color: #e0e0e0;
   }
   100% {
-    background-color: #EEEEEE;
+    background-color: #eeeeee;
   }
 }

src/app/features/store/pages/account-page/components/purchase-list/purchase-list.ts

@@ -1,19 +1,24 @@
 import { Component, OnInit, inject, signal } from '@angular/core';
-import { CommonModule } from '@angular/common';
 import { PurchaseListItem } from '../purchase-list-item/purchase-list-item';
-import { CheckoutService, PurchaseSummaryResponse } from '../../../../../../core/services/checkout.service';
+import {
+  CheckoutService,
+  PurchaseSummaryResponse,
+} from '../../../../../../core/services/checkout.service';
 import { ToastService } from '../../../../../../core/services/toast.service';
 import { TenantService } from '../../../../../../core/services/tenant.service';
+import { ApiPaginationMeta } from '../../../../../../core/services/api-paginated-response.interface';
+import { PaginatorComponent } from '../../../../../../shared/components/paginator/paginator.component';
 
 type PurchaseListViewModel = {
   id: number;
   date: string;
+  statusMessage: string | null;
 };
 
 @Component({
   selector: 'app-purchase-list',
   standalone: true,
-  imports: [CommonModule, PurchaseListItem],
+  imports: [PurchaseListItem, PaginatorComponent],
   templateUrl: './purchase-list.html',
   styleUrl: './purchase-list.scss',
 })
@@ -22,21 +27,28 @@ export class PurchaseList implements OnInit {
   private readonly toastService = inject(ToastService);
   private readonly tenantService = inject(TenantService);
 
-  purchases = signal<PurchaseListViewModel[]>([]);
+  protected readonly purchases = signal<PurchaseListViewModel[]>([]);
-  isLoading = signal<boolean>(true);
+  protected readonly pagination = signal<ApiPaginationMeta | null>(null);
+  protected readonly isLoading = signal(true);
 
   async ngOnInit(): Promise<void> {
+    await this.loadPurchases();
+  }
+
+  protected async onPageChange(page: number): Promise<void> {
+    await this.loadPurchases(page);
+  }
+
+  private async loadPurchases(page = 1): Promise<void> {
+    this.isLoading.set(true);
+
     try {
-      const tenantCode = this.tenantService.tenant()?.codigo || '';
-      
       const response = await this.checkoutService
         .withCustomLoading()
-        .getPurchases(tenantCode, 'paid');
+        .getPurchases(this.tenantCode(), 'paid,in_review', { page });
-      const mappedPurchases = response.data.map((purchase: PurchaseSummaryResponse) => ({
+
-        id: purchase.id,
+      this.purchases.set(this.mapPurchases(response.data));
-        date: this.formatDate(purchase.created_at),
+      this.pagination.set(response.meta);
-      }));
-      this.purchases.set(mappedPurchases);
     } catch (error) {
       this.toastService.danger('Hubo un error al cargar las compras');
     } finally {
@@ -44,6 +56,18 @@ export class PurchaseList implements OnInit {
     }
   }
 
+  private tenantCode(): string {
+    return this.tenantService.tenant()?.codigo || '';
+  }
+
+  private mapPurchases(purchases: PurchaseSummaryResponse[]): PurchaseListViewModel[] {
+    return purchases.map((purchase) => ({
+      id: purchase.id,
+      date: this.formatDate(purchase.created_at),
+      statusMessage: purchase.status === 'in_review' ? 'Esperando confirmación' : null,
+    }));
+  }
+
   private formatDate(value: string | null): string {
     if (!value) {
       return '-';

src/app/features/store/pages/account-page/pages/purchase-detail-page/purchase-detail-page.html

@@ -15,6 +15,27 @@
   @if (isLoading()) {
     <p class="purchase-loading">Cargando detalle de compra...</p>
   } @else if (purchase(); as purchase) {
+    @if (purchase.isInReview) {
+      <section class="purchase-review" aria-labelledby="purchase-review-title">
+        <h3 id="purchase-review-title" class="purchase-review__title">ESPERANDO CONFIRMACIÓN</h3>
+        <p class="purchase-review__message">
+          Tu compra aún no ha sido confirmada.<br />
+          Si no te contactaste con nosotros, podés hacerlo a través del siguiente WhatsApp
+        </p>
+
+        @if (whatsappUrl()) {
+          <app-button
+            type="button"
+            variant="primary"
+            hostClass="purchase-review__button"
+            (click)="openWhatsApp()"
+          >
+            WhatsApp
+          </app-button>
+        }
+      </section>
+    }
+
     <div
       class="d-flex justify-content-between align-items-center mb-4 pb-3"
       style="border-bottom: 1px solid #dddddd"

src/app/features/store/pages/account-page/pages/purchase-detail-page/purchase-detail-page.scss

@@ -4,6 +4,8 @@
 }
 
 .account-page {
+  --menu-content-prefix-gap: 0;
+
   display: block;
   width: 100%;
   max-width: 600px;
@@ -50,6 +52,32 @@
   font-size: 17px;
 }
 
+.purchase-review {
+  padding-bottom: 2rem;
+  margin-bottom: 2rem;
+  border-bottom: 1px solid #dddddd;
+}
+
+.purchase-review__title {
+  margin: 0 0 0.5rem;
+  color: var(--color-primary, var(--tenant-primary, #5b75ff));
+  font-size: 14px;
+  font-weight: 700;
+  line-height: 1.25;
+}
+
+.purchase-review__message {
+  margin: 0 0 1.5rem;
+  color: #777777;
+  font-size: 12px;
+  font-weight: 400;
+  line-height: 1.4;
+}
+
+.purchase-review__button {
+  width: 185px;
+}
+
 .purchase-loading,
 .purchase-empty {
   color: #666666;

src/app/features/store/pages/account-page/pages/purchase-detail-page/purchase-detail-page.ts

@@ -1,5 +1,4 @@
-import { CommonModule } from '@angular/common';
+import { Component, OnInit, computed, inject, signal } from '@angular/core';
-import { Component, OnInit, inject, signal } from '@angular/core';
 import { ActivatedRoute, Router, RouterLink } from '@angular/router';
 
 import {
@@ -8,6 +7,7 @@ import {
 } from '../../../../../../core/services/checkout.service';
 import { TenantService } from '../../../../../../core/services/tenant.service';
 import { ToastService } from '../../../../../../core/services/toast.service';
+import { ButtonComponent } from '../../../../../../shared/components/button/button.component';
 import { MenuContentSectionComponent } from '../../../../components/menu-content-section/menu-content-section.component';
 import { PurchaseItem, PurchaseItemViewModel } from '../../components/purchase-item/purchase-item';
 
@@ -16,12 +16,13 @@ type PurchaseDetailViewModel = {
   date: string;
   total: string;
   items: PurchaseItemViewModel[];
+  isInReview: boolean;
 };
 
 @Component({
   selector: 'app-purchase-detail-page',
   standalone: true,
-  imports: [CommonModule, RouterLink, PurchaseItem, MenuContentSectionComponent],
+  imports: [RouterLink, PurchaseItem, MenuContentSectionComponent, ButtonComponent],
   templateUrl: './purchase-detail-page.html',
   styleUrl: './purchase-detail-page.scss',
 })
@@ -34,6 +35,12 @@ export class PurchaseDetailPage implements OnInit {
 
   readonly isLoading = signal(true);
   readonly purchase = signal<PurchaseDetailViewModel | null>(null);
+  protected readonly whatsappUrl = computed(
+    () =>
+      this.tenantService
+        .tenant()
+        ?.social_media?.find((socialMedia) => socialMedia.code === 'whatsapp')?.url ?? null,
+  );
 
   async ngOnInit(): Promise<void> {
     const purchaseId = this.route.snapshot.paramMap.get('id');
@@ -54,6 +61,7 @@ export class PurchaseDetailPage implements OnInit {
         date: this.formatDate(response.created_at),
         total: response.total,
         items: this.mapItems(response),
+        isInReview: response.status === 'in_review',
       });
     } catch (error) {
       console.error('Failed to fetch purchase detail:', error);
@@ -64,6 +72,14 @@ export class PurchaseDetailPage implements OnInit {
     }
   }
 
+  protected openWhatsApp(): void {
+    const url = this.whatsappUrl();
+
+    if (url) {
+      window.open(url, '_blank', 'noopener,noreferrer');
+    }
+  }
+
   private formatDate(value: string | null): string {
     if (!value) {
       return '-';

src/app/features/store/pages/category-items-page/category-items-page.component.spec.ts

@@ -7,6 +7,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -107,6 +108,16 @@ describe('CategoryItemsPageComponent', () => {
     expect(Array.isArray(productList.items())).toBe(false);
   });
 
+  it('reloads the current category page when catalog availability changes', () => {
+    const fixture = TestBed.createComponent(CategoryItemsPageComponent);
+    fixture.detectChanges();
+
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+
+    expect(getCategoryItems).toHaveBeenCalledTimes(2);
+    expect(getCategoryItems).toHaveBeenLastCalledWith(7, { page: 1 });
+  });
+
   it('does not request the API when the category id is invalid', () => {
     TestBed.overrideProvider(ActivatedRoute, {
       useValue: {

src/app/features/store/pages/category-items-page/category-items-page.component.ts

@@ -16,18 +16,23 @@ import {
   finalize,
   map,
   of,
+  startWith,
   switchMap,
   tap,
 } from 'rxjs';
 
 import { AuthService } from '../../../../core/services/auth/auth.service';
 import { CartService } from '../../../../core/services/cart/cart.service';
-import { CheckoutService } from '../../../../core/services/checkout.service';
+import {
+  CheckoutService,
+  isExpiredStockReservationResponse,
+} from '../../../../core/services/checkout.service';
 import {
   CatalogGroupLayout,
   CategoryItemsResponse,
 } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import {
@@ -50,6 +55,7 @@ interface CategoryRouteState {
 })
 export class CategoryItemsPageComponent {
   private readonly cartService = inject(CartService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly catalogService = inject(CatalogService);
   private readonly injector = inject(Injector);
   private readonly destroyRef = inject(DestroyRef);
@@ -65,22 +71,29 @@ export class CategoryItemsPageComponent {
   protected readonly paginatedLayout: CatalogGroupLayout = 'paginated';
 
   constructor() {
-    combineLatest([this.route.paramMap, this.route.queryParamMap])
+    const routeState$ = combineLatest([this.route.paramMap, this.route.queryParamMap]).pipe(
-      .pipe(
+      map(
-        map(
+        ([params, queryParams]): CategoryRouteState => ({
-          ([params, queryParams]): CategoryRouteState => ({
+          categoryId: this.parsePositiveInteger(params.get('id')),
-            categoryId: this.parsePositiveInteger(params.get('id')),
+          page: this.parsePositiveInteger(queryParams.get('page'), 1),
-            page: this.parsePositiveInteger(queryParams.get('page'), 1),
-          }),
-        ),
-        distinctUntilChanged(
-          (previous, current) =>
-            previous.categoryId === current.categoryId && previous.page === current.page,
-        ),
-        tap(() => {
-          this.results.set(null);
-          this.error.set(null);
         }),
+      ),
+      distinctUntilChanged(
+        (previous, current) =>
+          previous.categoryId === current.categoryId && previous.page === current.page,
+      ),
+      tap(() => {
+        this.results.set(null);
+        this.error.set(null);
+      }),
+    );
+
+    combineLatest([
+      routeState$,
+      this.catalogAvailabilityService.availabilityChanged$.pipe(startWith(undefined)),
+    ])
+      .pipe(
+        map(([routeState]) => routeState),
         switchMap(({ categoryId, page }) => {
           if (categoryId === 0) {
             this.error.set('La categoría solicitada no es válida.');
@@ -157,10 +170,20 @@ export class CategoryItemsPageComponent {
               ],
             },
       );
-      await this.router.navigate(['/checkout'], { queryParams: { purchase: purchase.id } });
+      await this.router.navigate(['/checkout', purchase.id]);
     } catch (error) {
       console.error('Failed to create direct purchase:', error);
-      this.toastService.danger('No se pudo iniciar la compra directa.');
+      const message =
+        error instanceof HttpErrorResponse && typeof error.error?.message === 'string'
+          ? error.error.message
+          : 'No se pudo iniciar la compra directa.';
+      this.toastService.danger(message);
+
+      if (error instanceof HttpErrorResponse && isExpiredStockReservationResponse(error.error)) {
+        this.cartService.loadCart(true).subscribe({
+          error: (refreshError) => console.error('Error refreshing expired cart', refreshError),
+        });
+      }
     } finally {
       this.creatingDirectPurchase.set(false);
     }

src/app/features/store/pages/checkout-page/checkout-page.component.html

@@ -5,13 +5,12 @@
   </div>
 } @else {
   <div class="checkout-page">
-    <div
+    <div class="checkout-page__stepper-col">
-      class="checkout-page__stepper-col"
+      <app-stepper
-      [class.checkout-page__stepper-col--editing]="isEditingItems()"
+        #stepper
-      [attr.aria-hidden]="isEditingItems()"
+        [initialStepIndex]="checkoutStepIndex()"
-      [attr.inert]="isEditingItems() ? '' : null"
+        [disabled]="hasSubmittedTransfer()"
-    >
+      >
-      <app-stepper #stepper [initialStepIndex]="checkoutStepIndex()">
         <app-step label="Datos" [isValid]="isStep1Valid()">
           <app-checkout-data-step
             [form]="form"
@@ -24,6 +23,7 @@
           <app-checkout-payment-step
             [paymentMethods]="paymentMethods"
             [selectedPaymentMethod]="selectedPaymentMethod()"
+            [paymentMethodDisabled]="hasSubmittedTransfer()"
             [copiedTransferField]="copiedTransferField()"
             [transferAccount]="transferAccount()"
             [transferDni]="transferDni()"
@@ -45,30 +45,31 @@
       </app-stepper>
     </div>
 
-    @if (isEditingItems()) {
-      <div class="checkout-page__editing-notice" role="status">
-        <p>Terminá de modificar las cantidades para continuar con el pago.</p>
-      </div>
-    }
-
     <div class="checkout-page__cart-col">
+      @if (checkoutRemainingTime(); as remainingTime) {
+        <div
+          class="checkout-page__mobile-countdown d-flex d-md-none align-items-baseline justify-content-center gap-3"
+          role="timer"
+          aria-label="Tiempo restante de compra"
+        >
+          <span class="checkout-page__mobile-countdown-label">Tiempo restante de compra:</span>
+          <span class="checkout-page__mobile-countdown-value">{{ remainingTime }}</span>
+        </div>
+      }
+
       <app-cart
         title="COMPRA"
         [items]="mappedCartItems()"
         [subtotal]="cartSubtotal()"
         [discount]="cartDiscount()"
         [total]="cartTotal()"
-        [readonly]="!cartEditingEnabled()"
+        [readonly]="true"
-        [allowEditing]="
+        [allowModify]="true"
-          createdPurchase()?.status === 'created' || createdPurchase()?.status === 'pending_payment'
+        [showModifyWhenReadonly]="true"
-        "
+        [modifyAsAction]="true"
-        [allowRemove]="false"
+        [editingDisabled]="isPurchaseModificationDisabled()"
-        [persistQuantityChanges]="false"
-        [editing]="isEditingItems()"
-        [editingDisabled]="isUpdatingItem() || isPreparingItemEdit()"
         backgroundColor="transparent"
-        (editingChange)="onEditingItemsChange($event)"
+        (modify)="onModifyPurchase()"
-        (itemQuantityChange)="onPurchaseItemQuantityChange($event)"
       />
     </div>
   </div>

src/app/features/store/pages/checkout-page/checkout-page.component.scss

@@ -11,8 +11,7 @@
       order: 1;
     }
 
-    .checkout-page__stepper-col,
+    .checkout-page__stepper-col {
-    .checkout-page__editing-notice {
       order: 2;
     }
   }
@@ -21,27 +20,6 @@
     min-width: 0;
     border-radius: 4px;
     min-height: 420px;
-
-    &--editing {
-      display: none;
-    }
-  }
-
-  &__editing-notice {
-    display: grid;
-    min-height: 420px;
-    place-items: center;
-    padding: 2rem;
-    border-radius: 4px;
-    background: #f5f5f5;
-    color: #666666;
-    text-align: center;
-
-    p {
-      max-width: 360px;
-      margin: 0;
-      font-size: 14px;
-    }
   }
 
   &__cart-col {
@@ -50,6 +28,24 @@
     display: flex;
     flex-direction: column;
   }
+
+  &__mobile-countdown {
+    flex: 0 0 auto;
+    margin-bottom: 1.5rem;
+    color: var(--tenant-primary);
+    font-weight: 700;
+    white-space: nowrap;
+  }
+
+  &__mobile-countdown-label {
+    font-size: 13px;
+  }
+
+  &__mobile-countdown-value {
+    font-size: 20px;
+    line-height: 1;
+    font-variant-numeric: tabular-nums;
+  }
 }
 
 .checkout-page__loading {

src/app/features/store/pages/checkout-page/checkout-page.component.spec.ts

@@ -1,3 +1,4 @@
+import { HttpErrorResponse } from '@angular/common/http';
 import { signal } from '@angular/core';
 import { getTestBed, TestBed } from '@angular/core/testing';
 import { BrowserTestingModule, platformBrowserTesting } from '@angular/platform-browser/testing';
@@ -6,33 +7,41 @@ import { of } from 'rxjs';
 import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { AuthService } from '../../../../core/services/auth/auth.service';
-import { CartService } from '../../../../core/services/cart/cart.service';
 import { CheckoutService } from '../../../../core/services/checkout.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { GlobalLoadingService } from '../../../../core/services/global-loading/global-loading.service';
 import { TenantService } from '../../../../core/services/tenant.service';
+import { ToastService } from '../../../../core/services/toast.service';
+import { CartService } from '../../../../core/services/cart/cart.service';
+import { CartEditingPolicy } from '../../../../core/services/tenant.interface';
+import { CheckoutCountdownService } from '../../../../core/services/checkout-countdown.service';
 import { CheckoutPageComponent } from './checkout-page.component';
 
 describe('CheckoutPageComponent payment validation', () => {
   let checkoutServiceStub: {
     startCheckout: ReturnType<typeof vi.fn>;
     updateCustomerData: ReturnType<typeof vi.fn>;
-    updateItemQuantity: ReturnType<typeof vi.fn>;
-    prepareItemEditing: ReturnType<typeof vi.fn>;
     cancelPurchase: ReturnType<typeof vi.fn>;
     generatePaymentIntent: ReturnType<typeof vi.fn>;
+    submitPurchaseForReview: ReturnType<typeof vi.fn>;
     getPurchase: ReturnType<typeof vi.fn>;
     withCustomLoading: ReturnType<typeof vi.fn>;
   };
-  let cartServiceStub: {
-    cart: ReturnType<typeof signal>;
-    isUpdating: ReturnType<typeof signal<boolean>>;
-    loadCart: ReturnType<typeof vi.fn>;
-    clearCart: ReturnType<typeof vi.fn>;
-  };
   let routerStub: { navigate: ReturnType<typeof vi.fn> };
-  let routeQueryParamMap: ReturnType<typeof convertToParamMap>;
+  let toastServiceStub: { danger: ReturnType<typeof vi.fn> };
+  let globalLoadingServiceStub: {
+    start: ReturnType<typeof vi.fn>;
+    stop: ReturnType<typeof vi.fn>;
+  };
+  let cartServiceStub: { loadCart: ReturnType<typeof vi.fn> };
+  let routeParamMap: ReturnType<typeof convertToParamMap>;
   let authUserState: ReturnType<typeof signal>;
-  let tenantState: ReturnType<typeof signal<{ codigo: string; cart_editing_enabled?: boolean }>>;
+  let tenantState: ReturnType<
+    typeof signal<{
+      codigo: string;
+      checkout_editing_policy?: CartEditingPolicy;
+    }>
+  >;
 
   beforeAll(() => {
     try {
@@ -53,56 +62,50 @@ describe('CheckoutPageComponent payment validation', () => {
         total: '0.00',
       }),
       updateCustomerData: vi.fn(),
-      updateItemQuantity: vi.fn(),
-      prepareItemEditing: vi.fn(),
       cancelPurchase: vi.fn().mockResolvedValue({ status: 'cancelled' }),
       generatePaymentIntent: vi.fn().mockResolvedValue({
         qr_data: { qr_code: 'qr-value' },
       }),
+      submitPurchaseForReview: vi.fn().mockResolvedValue({ status: 'in_review' }),
       getPurchase: vi.fn().mockResolvedValue({ status: 'pending_payment' }),
       withCustomLoading: vi.fn(),
     };
     checkoutServiceStub.withCustomLoading.mockReturnValue(checkoutServiceStub);
-    cartServiceStub = {
-      cart: signal({
-        id: 10,
-        tenant_codigo: 'tenant-test',
-        status: 'active',
-        items: [],
-        subtotal: '0.00',
-      }),
-      isUpdating: signal(false),
-      loadCart: vi.fn().mockReturnValue(of({})),
-      clearCart: vi.fn(),
-    };
-    cartServiceStub.clearCart.mockImplementation(() => {
-      cartServiceStub.cart.set({
-        id: null,
-        tenant_codigo: 'tenant-test',
-        status: 'active',
-        items: [],
-        subtotal: '0.00',
-      });
-    });
     routerStub = { navigate: vi.fn() };
-    routeQueryParamMap = convertToParamMap({});
+    toastServiceStub = { danger: vi.fn() };
+    globalLoadingServiceStub = { start: vi.fn(), stop: vi.fn() };
+    cartServiceStub = {
+      loadCart: vi.fn().mockReturnValue(of({ id: 30, items: [], subtotal: '0.00' })),
+    };
+    routeParamMap = convertToParamMap({});
     authUserState = signal(null);
-    tenantState = signal({ codigo: 'tenant-test' });
+    tenantState = signal({
+      codigo: 'tenant-test',
+      checkout_editing_policy: {
+        code: 'full',
+        allow_modify: true,
+        allow_delete: true,
+        allow_update_quantity: true,
+        allow_update_variant: true,
+      },
+    });
 
     await TestBed.configureTestingModule({
       imports: [CheckoutPageComponent],
       providers: [
         { provide: CheckoutService, useValue: checkoutServiceStub },
         { provide: CatalogService, useValue: { getCatalogItem: vi.fn() } },
-        { provide: CartService, useValue: cartServiceStub },
         { provide: TenantService, useValue: { tenant: tenantState } },
         { provide: AuthService, useValue: { user: authUserState } },
+        { provide: GlobalLoadingService, useValue: globalLoadingServiceStub },
+        { provide: ToastService, useValue: toastServiceStub },
+        { provide: CartService, useValue: cartServiceStub },
         {
           provide: ActivatedRoute,
           useValue: {
             snapshot: {
-              get queryParamMap() {
+              get paramMap() {
-                return routeQueryParamMap;
+                return routeParamMap;
               },
             },
           },
@@ -127,6 +130,35 @@ describe('CheckoutPageComponent payment validation', () => {
     return { fixture, component: fixture.componentInstance as any };
   }
 
+  it('does not expose an active countdown until the purchase timing is loaded', async () => {
+    const countdown = TestBed.inject(CheckoutCountdownService);
+    countdown.synchronize({
+      expires_at: null,
+      expires_in_seconds: 600,
+      server_time: new Date().toISOString(),
+    });
+    checkoutServiceStub.getPurchase.mockResolvedValue({
+      id: 25,
+      status: 'created',
+      expires_at: '2026-08-27T15:10:00.000Z',
+      expires_in_seconds: 600,
+      server_time: '2026-08-27T15:00:00.000Z',
+      items: [],
+      subtotal: '0.00',
+      total: '0.00',
+    });
+    routeParamMap = convertToParamMap({ id: 25 });
+
+    const { component } = createComponent();
+
+    expect(component.checkoutRemainingTime()).toBeNull();
+
+    await Promise.resolve();
+
+    expect(countdown.remainingSeconds()).toBe(600);
+    expect(component.checkoutRemainingTime()).toBe('10:00');
+  });
+
   it('polls QR after five seconds and navigates only when payment is paid', async () => {
     checkoutServiceStub.getPurchase
       .mockResolvedValueOnce({ status: 'pending_payment' })
@@ -142,7 +174,6 @@ describe('CheckoutPageComponent payment validation', () => {
 
     await vi.advanceTimersByTimeAsync(5_000);
     expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(2);
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25]);
     expect(checkoutServiceStub.generatePaymentIntent).toHaveBeenCalledTimes(1);
   });
@@ -194,19 +225,46 @@ describe('CheckoutPageComponent payment validation', () => {
     expect(checkoutServiceStub.getPurchase).not.toHaveBeenCalled();
   });
 
-  it('checks the purchase detail once when the transfer was made', async () => {
+  it('polls a transfer every three seconds up to four attempts', async () => {
     checkoutServiceStub.getPurchase.mockResolvedValue({ status: 'pending_payment' });
     const { component } = createComponent();
     component.selectedPaymentMethod.set('transfer');
 
     await component.onComplete();
-    expect(checkoutServiceStub.getPurchase).toHaveBeenCalledWith('tenant-test', 25);
+    expect(component.transferValidationStatus()).toBe('checking');
-    expect(component.transferValidationStatus()).toBe('error');
+    expect(checkoutServiceStub.submitPurchaseForReview).toHaveBeenCalledWith('tenant-test', 25);
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
+    expect(checkoutServiceStub.getPurchase).not.toHaveBeenCalled();
-    expect(routerStub.navigate).not.toHaveBeenCalled();
 
-    await vi.advanceTimersByTimeAsync(30_000);
+    for (let attempt = 1; attempt <= 3; attempt += 1) {
-    expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(1);
+      await vi.advanceTimersByTimeAsync(3_000);
+      expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(attempt);
+      expect(component.transferValidationStatus()).toBe('checking');
+    }
+
+    await vi.advanceTimersByTimeAsync(3_000);
+    expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(4);
+    expect(checkoutServiceStub.getPurchase).toHaveBeenLastCalledWith('tenant-test', 25);
+    expect(component.transferValidationStatus()).toBe('error');
+    expect(routerStub.navigate).not.toHaveBeenCalled();
+  });
+
+  it('prevents modifying the purchase after Ya transferí is clicked', async () => {
+    const { component } = createComponent();
+    component.selectedPaymentMethod.set('transfer');
+
+    await component.onComplete();
+
+    expect(component.hasSubmittedTransfer()).toBe(true);
+    expect(component.isPurchaseModificationDisabled()).toBe(true);
+
+    await component.selectPaymentMethod('qr');
+    await component.onModifyPurchase();
+
+    expect(component.selectedPaymentMethod()).toBe('transfer');
+    expect(checkoutServiceStub.generatePaymentIntent).not.toHaveBeenCalled();
+    expect(checkoutServiceStub.cancelPurchase).not.toHaveBeenCalled();
+    expect(globalLoadingServiceStub.start).not.toHaveBeenCalled();
+    expect(routerStub.navigate).not.toHaveBeenCalled();
   });
 
   it('navigates after a transfer is confirmed as paid', async () => {
@@ -215,25 +273,49 @@ describe('CheckoutPageComponent payment validation', () => {
     component.selectedPaymentMethod.set('transfer');
 
     await component.onComplete();
+    await vi.advanceTimersByTimeAsync(3_000);
 
     expect(checkoutServiceStub.getPurchase).toHaveBeenCalledWith('tenant-test', 25);
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25]);
   });
 
-  it('shows a retryable state when transfer validation fails', async () => {
+  it('keeps polling after transfer validation requests fail', async () => {
     vi.spyOn(console, 'error').mockImplementation(() => undefined);
     checkoutServiceStub.getPurchase.mockRejectedValue(new Error('network error'));
     const { component } = createComponent();
     component.selectedPaymentMethod.set('transfer');
 
     await component.onComplete();
+    await vi.advanceTimersByTimeAsync(12_000);
 
+    expect(checkoutServiceStub.getPurchase).toHaveBeenCalledTimes(4);
     expect(component.transferValidationStatus()).toBe('error');
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(routerStub.navigate).not.toHaveBeenCalled();
   });
 
+  it('does not poll when submitting a transfer for review fails', async () => {
+    vi.spyOn(console, 'error').mockImplementation(() => undefined);
+    checkoutServiceStub.submitPurchaseForReview.mockRejectedValue(new Error('network error'));
+    const { component } = createComponent();
+    component.selectedPaymentMethod.set('transfer');
+
+    await component.onComplete();
+    await vi.advanceTimersByTimeAsync(12_000);
+
+    expect(checkoutServiceStub.submitPurchaseForReview).toHaveBeenCalledWith('tenant-test', 25);
+    expect(checkoutServiceStub.getPurchase).not.toHaveBeenCalled();
+    expect(component.transferValidationStatus()).toBe('error');
+  });
+
+  it('cancels transfer polling when the component is destroyed', async () => {
+    const checkout = createComponent();
+    checkout.component.selectedPaymentMethod.set('transfer');
+    await checkout.component.onComplete();
+    checkout.fixture.destroy();
+    await vi.advanceTimersByTimeAsync(12_000);
+    expect(checkoutServiceStub.getPurchase).not.toHaveBeenCalled();
+  });
+
   it('loads purchase items but prefills customer data from the user', async () => {
     const purchase = {
       id: 25,
@@ -265,7 +347,7 @@ describe('CheckoutPageComponent payment validation', () => {
       subtotal: '2501.00',
       total: '2501.00',
     };
-    routeQueryParamMap = convertToParamMap({ purchase: 25 });
+    routeParamMap = convertToParamMap({ id: 25 });
     checkoutServiceStub.getPurchase.mockResolvedValue(purchase);
     authUserState.set({
       id: 7,
@@ -302,7 +384,7 @@ describe('CheckoutPageComponent payment validation', () => {
 
   it('keeps the checkout hidden while the purchase is loading', async () => {
     let resolvePurchase!: (purchase: any) => void;
-    routeQueryParamMap = convertToParamMap({ purchase: 25 });
+    routeParamMap = convertToParamMap({ id: 25 });
     checkoutServiceStub.getPurchase.mockReturnValue(
       new Promise((resolve) => {
         resolvePurchase = resolve;
@@ -323,12 +405,13 @@ describe('CheckoutPageComponent payment validation', () => {
     });
     await Promise.resolve();
 
+    expect(checkoutServiceStub.getPurchase).toHaveBeenCalledWith('tenant-test', 25);
     expect(component.isLoadingPurchase()).toBe(false);
     expect(component.checkoutStepIndex()).toBe(0);
   });
 
   it('opens a pending purchase on the payment step and restores its payment method', async () => {
-    routeQueryParamMap = convertToParamMap({ purchase: 25 });
+    routeParamMap = convertToParamMap({ id: 25 });
     checkoutServiceStub.getPurchase.mockResolvedValue({
       id: 25,
       status: 'pending_payment',
@@ -348,7 +431,7 @@ describe('CheckoutPageComponent payment validation', () => {
   });
 
   it('generates a new QR when reopening a pending QR purchase', async () => {
-    routeQueryParamMap = convertToParamMap({ purchase: 25 });
+    routeParamMap = convertToParamMap({ id: 25 });
     checkoutServiceStub.getPurchase.mockResolvedValue({
       id: 25,
       status: 'pending_payment',
@@ -372,7 +455,7 @@ describe('CheckoutPageComponent payment validation', () => {
   it.each(['paid', 'cancelled', 'rejected', 'expired'])(
     'redirects a %s purchase to its status page',
     async (status) => {
-      routeQueryParamMap = convertToParamMap({ purchase: 25 });
+      routeParamMap = convertToParamMap({ id: 25 });
       checkoutServiceStub.getPurchase.mockResolvedValue({
         id: 25,
         status,
@@ -390,7 +473,7 @@ describe('CheckoutPageComponent payment validation', () => {
   );
 
   it('redirects a submitted pending payment purchase to its status page', async () => {
-    routeQueryParamMap = convertToParamMap({ purchase: 25 });
+    routeParamMap = convertToParamMap({ id: 25 });
     checkoutServiceStub.getPurchase.mockResolvedValue({
       id: 25,
       status: 'pending_payment',
@@ -408,73 +491,75 @@ describe('CheckoutPageComponent payment validation', () => {
     expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25]);
   });
 
-  it('updates a purchase item while editing and refreshes checkout totals', async () => {
+  it('shows the API error and redirects to status when cancellation finds an expired purchase', async () => {
-    const updatedPurchase = {
+    const message = 'La compra venció. Iniciá una nueva compra.';
-      id: 25,
+    checkoutServiceStub.cancelPurchase.mockRejectedValue({
-      items: [],
+      error: { code: 'purchase.expired', message },
-      subtotal: '300.00',
-      total: '300.00',
-    };
-    checkoutServiceStub.updateItemQuantity.mockResolvedValue(updatedPurchase);
-    const { component } = createComponent();
-    component.isEditingItems.set(true);
-
-    await component.onPurchaseItemQuantityChange({
-      item: {
-        cartItemId: 91,
-        imageUrl: null,
-        product: 'Remera',
-        originalPrice: null,
-        discountedPrice: 100,
-        discountPercentage: null,
-        attributes: [],
-        quantity: 2,
-      },
-      quantity: 3,
     });
+    const { component } = createComponent();
 
-    expect(checkoutServiceStub.updateItemQuantity).toHaveBeenCalledWith('tenant-test', 25, 91, 3);
+    await component.onModifyPurchase();
-    expect(component.createdPurchase()).toBe(updatedPurchase);
+
-    expect(component.isUpdatingItem()).toBe(false);
+    expect(toastServiceStub.danger).toHaveBeenCalledWith(message);
+    expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25], {
+      queryParams: { status: 'expired' },
+    });
+    expect(globalLoadingServiceStub.start).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.stop).toHaveBeenCalledOnce();
+    expect(component.isCancellingPurchase()).toBe(false);
   });
 
-  it('keeps the payment step selected while editing and regenerates payment afterward', async () => {
+  it('cancels the current purchase and opens the active cart when Modificar is clicked', async () => {
-    const editablePurchase = {
+    let finishNavigation!: (navigated: boolean) => void;
+    routerStub.navigate.mockReturnValue(
+      new Promise<boolean>((resolve) => {
+        finishNavigation = resolve;
+      }),
+    );
+    const { component } = createComponent();
+    component.createdPurchase.set({
       id: 25,
       status: 'created',
-      items: [],
+      items: [
-      subtotal: '100.00',
+        {
-      total: '100.00',
+          id: 91,
-    };
+          quantity: 2,
-    checkoutServiceStub.prepareItemEditing.mockResolvedValue(editablePurchase);
+          unit_price: '100.00',
-    const { component } = createComponent();
+          line_total: '200.00',
-    component.stepper = { currentStepIndex: signal(1) };
+          source_catalog_item_id: 8,
-    const selectPaymentMethod = vi
+          source_variant_id: null,
-      .spyOn(component, 'selectPaymentMethod')
+          item_details: {
-      .mockResolvedValue(undefined);
+            nombre: 'Remera',
+            descripcion: null,
+            slug: 'remera',
+            imagen: null,
+            attributes: [],
+          },
+        },
+      ],
+      subtotal: '200.00',
+      total: '200.00',
+    });
+    const modification = component.onModifyPurchase();
+    await Promise.resolve();
+    await Promise.resolve();
 
-    await component.onEditingItemsChange(true);
+    expect(checkoutServiceStub.cancelPurchase).toHaveBeenCalledWith('tenant-test', 25);
+    expect(cartServiceStub.loadCart).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.start).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.stop).not.toHaveBeenCalled();
+    expect(component.createdPurchaseId()).toBeNull();
+    expect(component.createdPurchase()).toBeNull();
+    expect(routerStub.navigate).toHaveBeenCalledWith(['/'], {
+      queryParams: { openCart: true },
+    });
 
-    expect(checkoutServiceStub.prepareItemEditing).toHaveBeenCalledWith('tenant-test', 25);
+    finishNavigation(true);
-    expect(component.isEditingItems()).toBe(true);
+    await modification;
-    expect(component.createdPurchase()).toBe(editablePurchase);
 
-    await component.onEditingItemsChange(false);
+    expect(globalLoadingServiceStub.stop).toHaveBeenCalledOnce();
 
-    expect(component.stepper.currentStepIndex()).toBe(1);
+    await component.canDeactivate();
-    expect(selectPaymentMethod).toHaveBeenCalledWith('qr');
-    expect(component.isEditingItems()).toBe(false);
-  });
-
-  it('does not allow item editing when the tenant disables cart editing', async () => {
-    tenantState.set({ codigo: 'tenant-test', cart_editing_enabled: false });
-    const { component } = createComponent();
-
-    await component.onEditingItemsChange(true);
-
-    expect(component.cartEditingEnabled()).toBe(false);
-    expect(component.isEditingItems()).toBe(false);
-    expect(checkoutServiceStub.prepareItemEditing).not.toHaveBeenCalled();
   });
 
   it('updates customer data on the existing purchase before payment', async () => {
@@ -511,14 +596,122 @@ describe('CheckoutPageComponent payment validation', () => {
     expect(component.stepper.next).toHaveBeenCalledOnce();
   });
 
-  it('cancels the pending purchase before allowing navigation away', async () => {
+  it('cancels the current purchase when navigating away from checkout', async () => {
     const { component } = createComponent();
 
     await expect(component.canDeactivate()).resolves.toBe(true);
 
     expect(checkoutServiceStub.cancelPurchase).toHaveBeenCalledWith('tenant-test', 25);
-    expect(cartServiceStub.loadCart).toHaveBeenCalled();
+    expect(cartServiceStub.loadCart).toHaveBeenCalledOnce();
-    expect(cartServiceStub.clearCart).not.toHaveBeenCalled();
     expect(component.createdPurchaseId()).toBeNull();
+    expect(globalLoadingServiceStub.start).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.stop).toHaveBeenCalledOnce();
+  });
+
+  it('prevents leaving checkout when the purchase cannot be cancelled', async () => {
+    checkoutServiceStub.cancelPurchase.mockRejectedValue({
+      error: { message: 'No se pudo cancelar la compra.' },
+    });
+    const { component } = createComponent();
+
+    await expect(component.canDeactivate()).resolves.toBe(false);
+
+    expect(toastServiceStub.danger).toHaveBeenCalledWith('No se pudo cancelar la compra.');
+    expect(component.createdPurchaseId()).toBe(25);
+  });
+
+  it('allows leaving checkout when cancellation finds an expired stock reservation', async () => {
+    const message = 'La reserva de stock venció. Usá el carrito activo para continuar.';
+    checkoutServiceStub.cancelPurchase.mockRejectedValue({
+      error: { code: 'stock_reservation.expired', message },
+    });
+    const { component } = createComponent();
+
+    await expect(component.canDeactivate()).resolves.toBe(true);
+
+    expect(toastServiceStub.danger).toHaveBeenCalledWith(message);
+    expect(cartServiceStub.loadCart).toHaveBeenCalledOnce();
+    expect(component.createdPurchaseId()).toBeNull();
+    expect(component.createdPurchase()).toBeNull();
+    expect(globalLoadingServiceStub.start).toHaveBeenCalledOnce();
+    expect(globalLoadingServiceStub.stop).toHaveBeenCalledOnce();
+  });
+
+  it('shows the API message and redirects to status when a checkout operation finds an expired purchase', async () => {
+    checkoutServiceStub.generatePaymentIntent.mockRejectedValue(
+      new HttpErrorResponse({
+        status: 422,
+        error: {
+          code: 'purchase.expired',
+          message: 'La compra venci\u00f3. Inici\u00e1 una nueva compra.',
+        },
+      }),
+    );
+    const { component } = createComponent();
+
+    await component.selectPaymentMethod('qr');
+
+    expect(toastServiceStub.danger).toHaveBeenCalledWith(
+      'La compra venci\u00f3. Inici\u00e1 una nueva compra.',
+    );
+    expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25], {
+      queryParams: { status: 'expired' },
+    });
+    expect(component.isGeneratingIntent()).toBe(false);
+  });
+
+  it('redirects to status when QR polling receives a purchase-expired response', async () => {
+    checkoutServiceStub.getPurchase.mockRejectedValue(
+      new HttpErrorResponse({
+        status: 422,
+        error: {
+          code: 'purchase.expired',
+          message: 'La compra venci\u00f3. Inici\u00e1 una nueva compra.',
+        },
+      }),
+    );
+    const { component } = createComponent();
+
+    await component.selectPaymentMethod('qr');
+    await vi.advanceTimersByTimeAsync(5_000);
+
+    expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25], {
+      queryParams: { status: 'expired' },
+    });
+    expect(toastServiceStub.danger).toHaveBeenCalledWith(
+      'La compra venci\u00f3. Inici\u00e1 una nueva compra.',
+    );
+  });
+
+  it('treats a generic customer-data error as expired when the local deadline passed', () => {
+    const { component } = createComponent();
+    component.createdPurchase.set({
+      id: 25,
+      status: 'created',
+      expires_at: new Date(Date.now() - 1_000).toISOString(),
+      items: [],
+      subtotal: '100.00',
+      total: '100.00',
+    });
+
+    const handled = component.handleCheckoutError(
+      new HttpErrorResponse({
+        status: 422,
+        error: {
+          errors: {
+            purchase: ['La compra ya no se puede modificar.'],
+          },
+        },
+      }),
+      'No se pudieron actualizar los datos de la compra.',
+    );
+
+    expect(handled).toBe(true);
+    expect(toastServiceStub.danger).toHaveBeenCalledWith(
+      'La compra venci\u00f3. Inici\u00e1 una nueva compra.',
+    );
+    expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout/status', 25], {
+      queryParams: { status: 'expired' },
+    });
   });
 });

src/app/features/store/pages/checkout-page/checkout-page.component.ts

@@ -8,6 +8,7 @@ import {
   signal,
   ViewChild,
 } from '@angular/core';
+import { HttpErrorResponse } from '@angular/common/http';
 import { FormBuilder, Validators } from '@angular/forms';
 import { ActivatedRoute, Router } from '@angular/router';
 import { firstValueFrom, startWith } from 'rxjs';
@@ -19,13 +20,15 @@ import {
   PurchaseDetailResponse,
 } from '../../../../core/services/checkout.service';
 import { AuthService } from '../../../../core/services/auth/auth.service';
+import { GlobalLoadingService } from '../../../../core/services/global-loading/global-loading.service';
+import { ToastService } from '../../../../core/services/toast.service';
 import { CartService } from '../../../../core/services/cart/cart.service';
-import { BankAccount } from '../../../../core/services/tenant.interface';
 import { CartComponent, CartItemMock } from '../../../../shared/components/cart/cart.component';
 import { StepComponent } from '../../../../shared/components/stepper/step.component';
 import { StepperComponent } from '../../../../shared/components/stepper/stepper.component';
 import { CheckoutDataStepComponent } from './checkout-data-step.component';
 import { CheckoutPaymentStepComponent } from './checkout-payment-step.component';
+import { CheckoutCountdownService } from '../../../../core/services/checkout-countdown.service';
 import {
   CheckoutForm,
   PaymentMethod,
@@ -36,6 +39,12 @@ import {
   TransferValidationStatus,
 } from './checkout-page.models';
 
+interface ApiErrorResponse {
+  code?: string;
+  message?: string;
+  errors?: Record<string, string[]>;
+}
+
 @Component({
   selector: 'app-checkout-page',
   standalone: true,
@@ -56,16 +65,25 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   private readonly router = inject(Router);
   private readonly tenantService = inject(TenantService);
   private readonly checkoutService = inject(CheckoutService);
+  private readonly checkoutCountdownService = inject(CheckoutCountdownService);
   private readonly authService = inject(AuthService);
+  private readonly globalLoadingService = inject(GlobalLoadingService);
+  private readonly toastService = inject(ToastService);
   private readonly cartService = inject(CartService);
   private readonly qrPollingIntervalMs = 5_000;
-  private readonly qrPollingMaxAttempts = 9;
+  private readonly qrPollingMaxAttempts = 120;
+  private readonly transferPollingIntervalMs = 3_000;
+  private readonly transferPollingMaxAttempts = 209;
 
   private qrPollingTimeoutId: ReturnType<typeof setTimeout> | null = null;
   private qrPollingAttempts = 0;
   private qrPollingRunId = 0;
+  private transferPollingTimeoutId: ReturnType<typeof setTimeout> | null = null;
+  private transferPollingAttempts = 0;
+  private transferPollingRunId = 0;
   private paymentMethodRequestId = 0;
   private navigationStarted = false;
+  private cancelPurchasePromise: Promise<boolean> | null = null;
 
   @ViewChild(StepperComponent) stepper!: StepperComponent;
 
@@ -79,10 +97,28 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   protected readonly createdPurchase = signal<PurchaseDetailResponse | null>(null);
   protected readonly isLoadingPurchase = signal(true);
   protected readonly checkoutStepIndex = signal(0);
-  protected readonly cartEditingEnabled = computed(
+  protected readonly checkoutRemainingTime = computed(() => {
-    () => this.tenantService.tenant()?.cart_editing_enabled ?? true,
+    const purchase = this.createdPurchase();
-  );
 
+    if (
+      !purchase ||
+      (typeof purchase.expires_at !== 'string' &&
+        typeof purchase.expires_in_seconds !== 'number')
+    ) {
+      return null;
+    }
+
+    const remainingSeconds = this.checkoutCountdownService.remainingSeconds();
+
+    if (remainingSeconds === null) {
+      return null;
+    }
+
+    const minutes = Math.floor(remainingSeconds / 60);
+    const seconds = remainingSeconds % 60;
+
+    return `${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
+  });
   protected readonly cartSubtotal = computed(() => {
     const purchase = this.createdPurchase();
     return purchase ? parseFloat(purchase.subtotal) : 0;
@@ -111,9 +147,11 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   protected readonly transferDni = signal<string>('');
 
   protected readonly isUpdatingPurchase = signal(false);
-  protected readonly isEditingItems = signal(false);
+  protected readonly isCancellingPurchase = signal(false);
-  protected readonly isUpdatingItem = signal(false);
+  protected readonly hasSubmittedTransfer = signal(false);
-  protected readonly isPreparingItemEdit = signal(false);
+  protected readonly isPurchaseModificationDisabled = computed(
+    () => this.isCancellingPurchase() || this.hasSubmittedTransfer(),
+  );
   protected readonly createdPurchaseId = signal<number | null>(null);
   protected readonly isGeneratingIntent = signal(false);
   protected readonly isPaymentLoading = computed(() => this.isGeneratingIntent());
@@ -147,7 +185,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
   }
 
   ngOnInit(): void {
-    const purchaseId = Number(this.route.snapshot.queryParamMap.get('purchase'));
+    const purchaseId = Number(this.route.snapshot.paramMap.get('id'));
     if (!Number.isInteger(purchaseId) || purchaseId <= 0) {
       void this.router.navigate(['/']);
       return;
@@ -158,6 +196,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
 
   ngOnDestroy(): void {
     this.stopQrPolling();
+    this.stopTransferPolling();
   }
 
   private mapPurchaseItemToMock(item: PurchaseDetailItemResponse): CartItemMock {
@@ -173,92 +212,30 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
         value: attribute.value === null ? '' : String(attribute.value),
       })),
       quantity: item.quantity,
+      variantId: item.source_variant_id,
     };
   }
 
-  protected async onEditingItemsChange(editing: boolean): Promise<void> {
+  protected async onModifyPurchase(): Promise<void> {
-    if (this.isUpdatingItem() || this.isPreparingItemEdit()) {
+    if (this.isPurchaseModificationDisabled()) {
       return;
     }
 
-    if (editing && !this.cartEditingEnabled()) {
+    this.globalLoadingService.start();
-      return;
-    }
-
-    if (!editing) {
-      this.isEditingItems.set(false);
-
-      if (this.stepper?.currentStepIndex() === 1) {
-        void this.selectPaymentMethod(this.selectedPaymentMethod());
-      }
-
-      return;
-    }
-
-    this.isEditingItems.set(true);
-    this.stopQrPolling();
-    this.qrData.set(null);
-    this.qrPaymentStatus.set('idle');
-    this.transferAccount.set(null);
-    this.transferValidationStatus.set('idle');
-
-    const tenant = this.tenantService.tenant();
-    const purchaseId = this.createdPurchaseId();
-
-    if (!tenant || !purchaseId) {
-      this.isEditingItems.set(false);
-      return;
-    }
-
-    this.isPreparingItemEdit.set(true);
     try {
-      const purchase = await this.checkoutService.prepareItemEditing(tenant.codigo, purchaseId);
+      const cancelled = await this.cancelCurrentPurchase();
-      this.createdPurchase.set(purchase);
+      if (!cancelled) return;
-    } catch (error) {
+
-      console.error('Failed to prepare purchase item editing:', error);
+      await this.router.navigate(['/'], {
-      this.isEditingItems.set(false);
+        queryParams: { openCart: true },
+      });
     } finally {
-      this.isPreparingItemEdit.set(false);
+      this.globalLoadingService.stop();
-    }
-  }
-
-  protected async onPurchaseItemQuantityChange(event: {
-    item: CartItemMock;
-    quantity: number;
-  }): Promise<void> {
-    const tenant = this.tenantService.tenant();
-    const purchaseId = this.createdPurchaseId();
-    const itemId = event.item.cartItemId;
-
-    if (
-      !this.cartEditingEnabled() ||
-      !tenant ||
-      !purchaseId ||
-      !itemId ||
-      this.isUpdatingItem() ||
-      !this.isEditingItems()
-    ) {
-      return;
-    }
-
-    this.isUpdatingItem.set(true);
-    try {
-      const purchase = await this.checkoutService.updateItemQuantity(
-        tenant.codigo,
-        purchaseId,
-        itemId,
-        event.quantity,
-      );
-      this.createdPurchase.set(purchase);
-    } catch (error) {
-      console.error('Failed to update purchase item quantity:', error);
-    } finally {
-      this.isUpdatingItem.set(false);
     }
   }
 
   protected async onStep1Continue(): Promise<void> {
-    if (this.form.invalid || this.isUpdatingPurchase() || this.isEditingItems()) return;
+    if (this.form.invalid || this.isUpdatingPurchase()) return;
 
     const tenant = this.tenantService.tenant();
     const purchaseId = this.createdPurchaseId();
@@ -275,6 +252,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
         nombre_apellido: formValue.nombre,
       });
       this.createdPurchase.set(purchase);
+      this.checkoutCountdownService.synchronize(purchase);
 
       this.stepper.next();
 
@@ -282,56 +260,96 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       void this.selectPaymentMethod(this.selectedPaymentMethod());
     } catch (error) {
       console.error('Failed to create purchase:', error);
-      // Here we could show an alert or toast
+      this.showRequestError(error, 'No se pudieron actualizar los datos de la compra.');
     } finally {
       this.isUpdatingPurchase.set(false);
     }
   }
 
   protected async onCancel(): Promise<void> {
-    if (await this.canDeactivate()) {
+    void this.router.navigate(['/']);
-      void this.router.navigate(['/']);
-    }
   }
 
   public async canDeactivate(): Promise<boolean> {
     this.stopQrPolling();
+    this.stopTransferPolling();
+
+    if (this.cancelPurchasePromise) {
+      return this.cancelPurchasePromise;
+    }
 
     if (this.navigationStarted) {
       return true;
     }
 
-    const purchaseId = this.createdPurchaseId();
+    this.globalLoadingService.start();
-    const tenant = this.tenantService.tenant();
+    try {
+      return await this.cancelCurrentPurchase();
+    } finally {
+      this.globalLoadingService.stop();
+    }
+  }
 
-    if (!purchaseId || !tenant) {
+  private cancelCurrentPurchase(): Promise<boolean> {
+    if (this.cancelPurchasePromise) {
+      return this.cancelPurchasePromise;
+    }
+
+    this.cancelPurchasePromise = this.performPurchaseCancellation().finally(() => {
+      this.cancelPurchasePromise = null;
+    });
+
+    return this.cancelPurchasePromise;
+  }
+
+  private async performPurchaseCancellation(): Promise<boolean> {
+    const tenant = this.tenantService.tenant();
+    const purchaseId = this.createdPurchaseId();
+    if (!tenant || !purchaseId) {
+      this.checkoutCountdownService.clear();
       return true;
     }
 
+    this.isCancellingPurchase.set(true);
+
     try {
       await this.checkoutService.cancelPurchase(tenant.codigo, purchaseId);
+      await firstValueFrom(this.cartService.loadCart());
       this.createdPurchaseId.set(null);
       this.createdPurchase.set(null);
+      this.checkoutCountdownService.clear();
 
-      try {
+      this.navigationStarted = true;
-        await firstValueFrom(this.cartService.loadCart());
-      } catch (error) {
-        console.error('Failed to restore cart after cancelling checkout:', error);
-      }
-
       return true;
     } catch (error) {
-      console.error('Failed to cancel purchase:', error);
+      console.error('Failed to cancel the current purchase:', error);
+
+      if (this.isStockReservationExpiredError(error)) {
+        this.showRequestError(error, 'La reserva de stock venció.');
+        this.cartService.loadCart(true).subscribe({
+          error: (refreshError) => console.error('Error refreshing expired cart', refreshError),
+        });
+        this.createdPurchaseId.set(null);
+        this.createdPurchase.set(null);
+        this.checkoutCountdownService.clear();
+        this.navigationStarted = true;
+        return true;
+      }
+
+      this.showRequestError(error, 'No se pudo cancelar la compra.');
       return false;
+    } finally {
+      this.isCancellingPurchase.set(false);
     }
   }
 
   protected async selectPaymentMethod(method: PaymentMethod): Promise<void> {
-    if (this.navigationStarted || this.isEditingItems()) {
+    if (this.navigationStarted || this.hasSubmittedTransfer()) {
       return;
     }
 
     this.stopQrPolling();
+    this.stopTransferPolling();
     this.qrPaymentStatus.set('idle');
     this.transferValidationStatus.set('idle');
     this.selectedPaymentMethod.set(method);
@@ -371,13 +389,14 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       }
     } catch (error) {
       console.error('Failed to generate payment intent:', error);
+      this.showRequestError(error, 'No se pudo generar el pago.');
     } finally {
       this.isGeneratingIntent.set(false);
     }
   }
 
   protected async generateTransferIntent(dni: string): Promise<void> {
-    if (this.isEditingItems()) {
+    if (this.hasSubmittedTransfer()) {
       return;
     }
 
@@ -389,6 +408,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
     }
 
     this.transferDni.set(dni);
+    this.stopTransferPolling();
     this.transferValidationStatus.set('idle');
     this.isGeneratingIntent.set(true);
     try {
@@ -407,6 +427,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       }
     } catch (error) {
       console.error('Failed to generate transfer payment intent:', error);
+      this.showRequestError(error, 'No se pudo generar el pago por transferencia.');
     } finally {
       this.isGeneratingIntent.set(false);
     }
@@ -437,28 +458,116 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       !purchaseId ||
       !tenant ||
       this.navigationStarted ||
-      this.isEditingItems() ||
       this.transferValidationStatus() === 'checking'
     ) {
       return;
     }
 
+    this.stopTransferPolling();
+    this.hasSubmittedTransfer.set(true);
     this.transferValidationStatus.set('checking');
+    this.transferPollingAttempts = 0;
+
+    const runId = this.transferPollingRunId;
 
     try {
       const purchase = await this.checkoutService
         .withCustomLoading()
-        .getPurchase(tenant.codigo, purchaseId);
+        .submitPurchaseForReview(tenant.codigo, purchaseId);
+
+      if (runId !== this.transferPollingRunId) {
+        return;
+      }
+
+      this.checkoutCountdownService.synchronize(purchase);
 
       if (purchase.status === 'paid') {
         this.navigateToPurchaseStatus(purchaseId);
         return;
       }
 
-      this.transferValidationStatus.set('error');
+      this.scheduleTransferPoll(runId);
+    } catch (error) {
+      const expired = this.handleCheckoutError(
+        error,
+        'No se pudo enviar el pago para su validación.',
+      );
+
+      if (!expired && runId === this.transferPollingRunId) {
+        this.transferValidationStatus.set('error');
+      }
+    }
+  }
+
+  private scheduleTransferPoll(runId: number): void {
+    this.transferPollingTimeoutId = setTimeout(() => {
+      this.transferPollingTimeoutId = null;
+      void this.checkTransferPayment(runId);
+    }, this.transferPollingIntervalMs);
+  }
+
+  private async checkTransferPayment(runId: number): Promise<void> {
+    if (runId !== this.transferPollingRunId) {
+      return;
+    }
+
+    const purchaseId = this.createdPurchaseId();
+    const tenant = this.tenantService.tenant();
+
+    if (!purchaseId || !tenant || this.selectedPaymentMethod() !== 'transfer') {
+      this.stopTransferPolling();
+      return;
+    }
+
+    this.transferPollingAttempts += 1;
+
+    try {
+      const purchase = await this.checkoutService
+        .withCustomLoading()
+        .getPurchase(tenant.codigo, purchaseId);
+
+      if (runId !== this.transferPollingRunId) {
+        return;
+      }
+
+      this.checkoutCountdownService.synchronize(purchase);
+
+      if (purchase.status === 'paid') {
+        this.navigateToPurchaseStatus(purchaseId);
+        return;
+      }
+
+      if (purchase.status === 'expired') {
+        this.navigateToPurchaseStatus(purchaseId);
+        return;
+      }
     } catch (error) {
       console.error('Failed to validate transfer payment:', error);
+      if (this.isPurchaseExpiredError(error)) {
+        this.showRequestError(error, 'La compra venció. Iniciá una nueva compra.');
+        return;
+      }
+    }
+
+    if (runId !== this.transferPollingRunId) {
+      return;
+    }
+
+    if (this.transferPollingAttempts >= this.transferPollingMaxAttempts) {
+      this.stopTransferPolling();
       this.transferValidationStatus.set('error');
+      return;
+    }
+
+    this.scheduleTransferPoll(runId);
+  }
+
+  private stopTransferPolling(): void {
+    this.transferPollingRunId += 1;
+
+    if (this.transferPollingTimeoutId !== null) {
+      clearTimeout(this.transferPollingTimeoutId);
+      this.transferPollingTimeoutId = null;
     }
   }
 
@@ -509,6 +618,8 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
         return;
       }
 
+      this.checkoutCountdownService.synchronize(purchase);
+
       if (purchase.status === 'paid') {
         this.handleConfirmedPayment(purchaseId);
         return;
@@ -519,8 +630,17 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
         this.qrPaymentStatus.set('failed');
         return;
       }
+
+      if (purchase.status === 'expired') {
+        this.navigateToPurchaseStatus(purchaseId);
+        return;
+      }
     } catch (error) {
       console.error('Failed to validate QR payment:', error);
+      if (this.isPurchaseExpiredError(error)) {
+        this.showRequestError(error, 'La compra venció. Iniciá una nueva compra.');
+        return;
+      }
     } finally {
       if (runId === this.qrPollingRunId) {
         this.isCheckingQrPayment.set(false);
@@ -572,6 +692,8 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
 
     this.navigationStarted = true;
     this.stopQrPolling();
+    this.stopTransferPolling();
+    this.checkoutCountdownService.clear();
 
     void this.router.navigate(['/checkout/status', purchaseId]);
   }
@@ -583,6 +705,8 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       return;
     }
 
+    this.createdPurchaseId.set(purchaseId);
+
     try {
       const purchase = await this.checkoutService
         .withCustomLoading()
@@ -590,6 +714,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
 
       if (
         (purchase.status === 'pending_payment' && purchase.expires_at === null) ||
+        purchase.status === 'in_review' ||
         purchase.status === 'paid' ||
         purchase.status === 'cancelled' ||
         purchase.status === 'rejected' ||
@@ -606,6 +731,7 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
 
       this.createdPurchaseId.set(purchase.id);
       this.createdPurchase.set(purchase);
+      this.checkoutCountdownService.synchronize(purchase);
       this.checkoutStepIndex.set(purchase.status === 'pending_payment' ? 1 : 0);
 
       if (
@@ -623,7 +749,113 @@ export class CheckoutPageComponent implements OnInit, OnDestroy {
       }
     } catch (error) {
       console.error('Failed to load purchase:', error);
-      void this.router.navigate(['/']);
+      const expired = this.showRequestError(error, 'No se pudo cargar la compra.');
+      if (!expired) {
+        void this.router.navigate(['/']);
+      }
     }
   }
+
+  private showRequestError(error: unknown, fallbackMessage: string): boolean {
+    const payload =
+      typeof error === 'object' && error !== null && 'error' in error
+        ? (error as { error?: ApiErrorResponse }).error
+        : undefined;
+    const message =
+      typeof payload?.message === 'string' && payload.message.trim()
+        ? payload.message
+        : fallbackMessage;
+
+    this.toastService.danger(message);
+
+    if (payload?.code === 'purchase.expired') {
+      this.navigateToExpiredPurchaseStatus();
+      return true;
+    }
+
+    return false;
+  }
+
+  private handleCheckoutError(error: unknown, fallbackMessage: string): boolean {
+    if (!(error instanceof HttpErrorResponse)) {
+      this.toastService.danger(fallbackMessage);
+      return false;
+    }
+
+    const response = error.error as ApiErrorResponse | null;
+
+    if (response?.code === 'purchase.expired' || this.hasExpiredPurchase()) {
+      this.stopQrPolling();
+      this.stopTransferPolling();
+      this.toastService.danger(
+        response?.code === 'purchase.expired' && response.message
+          ? response.message
+          : 'La compra venció. Iniciá una nueva compra.',
+      );
+      this.navigateToExpiredPurchaseStatus();
+      return true;
+    }
+
+    const validationMessage = response?.errors
+      ? Object.values(response.errors).flat().find(Boolean)
+      : undefined;
+
+    this.toastService.danger(validationMessage ?? response?.message ?? fallbackMessage);
+    return false;
+  }
+
+  private navigateToExpiredPurchaseStatus(): void {
+    const purchaseId = this.createdPurchaseId() ?? this.createdPurchase()?.id;
+
+    if (purchaseId) {
+      if (this.navigationStarted) {
+        return;
+      }
+
+      this.navigationStarted = true;
+      this.stopQrPolling();
+      this.stopTransferPolling();
+      this.checkoutCountdownService.clear();
+      void this.router.navigate(['/checkout/status', purchaseId], {
+        queryParams: { status: 'expired' },
+      });
+      return;
+    }
+
+    void this.router.navigate(['/']);
+  }
+
+  private isPurchaseExpiredError(error: unknown): boolean {
+    if (typeof error !== 'object' || error === null || !('error' in error)) {
+      return false;
+    }
+
+    return (error as { error?: ApiErrorResponse }).error?.code === 'purchase.expired';
+  }
+
+  private isStockReservationExpiredError(error: unknown): boolean {
+    if (typeof error !== 'object' || error === null || !('error' in error)) {
+      return false;
+    }
+
+    return (error as { error?: ApiErrorResponse }).error?.code === 'stock_reservation.expired';
+  }
+
+  private hasExpiredPurchase(): boolean {
+    const purchase = this.createdPurchase();
+
+    if (!purchase) {
+      return false;
+    }
+
+    if (purchase.status === 'expired') {
+      return true;
+    }
+
+    if (!purchase.expires_at) {
+      return false;
+    }
+
+    return Date.parse(purchase.expires_at) <= Date.now();
+  }
 }

src/app/features/store/pages/checkout-page/checkout-payment-step.component.html

@@ -7,13 +7,18 @@
 
       <div class="payment-methods__list" role="radiogroup" aria-label="Metodo de pago">
         @for (method of paymentMethods(); track method.id) {
-          <label class="payment-method" [class.is-selected]="selectedPaymentMethod() === method.id">
+          <label
+            class="payment-method"
+            [class.is-selected]="selectedPaymentMethod() === method.id"
+            [class.is-disabled]="paymentMethodDisabled()"
+          >
             <input
               class="payment-method__radio"
               type="radio"
               name="payment-method"
               [value]="method.id"
               [checked]="selectedPaymentMethod() === method.id"
+              [disabled]="paymentMethodDisabled()"
               (change)="selectPaymentMethod(method.id)"
             />
 

src/app/features/store/pages/checkout-page/checkout-payment-step.component.scss

@@ -63,10 +63,14 @@
   cursor: pointer;
   transition: color 0.2s ease;
 
-  &:hover {
+  &:not(.is-disabled):hover {
     color: #4f4f4f;
   }
 
+  &.is-disabled {
+    cursor: default;
+  }
+
   &.is-selected {
     color: var(--tenant-primary, #6376f3);
   }
@@ -79,6 +83,10 @@
     cursor: pointer;
   }
 
+  &.is-disabled &__radio {
+    cursor: default;
+  }
+
   &__label {
     min-width: 0;
     font-size: 13px;
@@ -91,11 +99,13 @@
     font-size: 0.95rem;
     opacity: 0;
     transform: translateX(-4px);
-    transition: opacity 0.2s ease, transform 0.2s ease;
+    transition:
+      opacity 0.2s ease,
+      transform 0.2s ease;
   }
 
   &.is-selected &__chevron,
-  &:hover &__chevron {
+  &:not(.is-disabled):hover &__chevron {
     opacity: 1;
     transform: translateX(0);
   }
@@ -140,6 +150,4 @@
     font-weight: 700;
     line-height: 1.35;
   }
-
 }
-

src/app/features/store/pages/checkout-page/checkout-payment-step.component.ts

@@ -17,11 +17,12 @@ import {
   imports: [CheckoutPaymentQrComponent, CheckoutPaymentTransferComponent],
   templateUrl: './checkout-payment-step.component.html',
   styleUrl: './checkout-payment-step.component.scss',
-  changeDetection: ChangeDetectionStrategy.OnPush
+  changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class CheckoutPaymentStepComponent {
   readonly paymentMethods = input.required<ReadonlyArray<PaymentMethodOption>>();
   readonly selectedPaymentMethod = input.required<PaymentMethod>();
+  readonly paymentMethodDisabled = input<boolean>(false);
   readonly copiedTransferField = input<TransferField | null>(null);
   readonly transferAccount = input<TransferAccount | null>(null);
   readonly transferDni = input<string>('');
@@ -40,6 +41,10 @@ export class CheckoutPaymentStepComponent {
   readonly generateTransferIntent = output<string>();
 
   protected selectPaymentMethod(method: PaymentMethod): void {
+    if (this.paymentMethodDisabled()) {
+      return;
+    }
+
     this.paymentMethodChange.emit(method);
   }
 

src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts

@@ -1,5 +1,6 @@
 import { TestBed, getTestBed } from '@angular/core/testing';
 import { signal } from '@angular/core';
+import { HttpErrorResponse } from '@angular/common/http';
 import { BrowserTestingModule, platformBrowserTesting } from '@angular/platform-browser/testing';
 import { ActivatedRoute, Router } from '@angular/router';
 import { By } from '@angular/platform-browser';
@@ -8,6 +9,7 @@ import { beforeAll, beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { CatalogItemDetail } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import { ProductDetailPageComponent } from './product-detail-page.component';
@@ -36,7 +38,7 @@ describe('ProductDetailPageComponent', () => {
     has_tickets: false,
     minimum_use_date: null,
     maximum_use_date: null,
-    stock_tecnico: 10,
+    maximum_addable_quantity: 10,
     attributes: [],
     variants: [],
   };
@@ -175,6 +177,21 @@ describe('ProductDetailPageComponent', () => {
     expect(element.querySelector('.product-carousel__discount-badge')).toBeNull();
   });
 
+  it('reloads product availability when the cart changes', async () => {
+    catalogServiceStub.getCatalogItem.mockReturnValue(
+      of({ ...mockProduct, maximum_addable_quantity: 4 }),
+    );
+    await configureTestingModule();
+    const fixture = TestBed.createComponent(ProductDetailPageComponent);
+    fixture.detectChanges();
+
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+    fixture.detectChanges();
+
+    expect(catalogServiceStub.getCatalogItem).toHaveBeenCalledWith(1, undefined);
+    expect(fixture.componentInstance['selectedVariantMax']()).toBe(4);
+  });
+
   it('shows error message if the resolver cannot load the product', async () => {
     resolveProductError(PRODUCT_DETAIL_ERROR_MESSAGE);
     await configureTestingModule();
@@ -190,10 +207,10 @@ describe('ProductDetailPageComponent', () => {
     const detailProduct: CatalogItemDetail = {
       ...mockProduct,
       images: ['https://example.com/product.png'],
-      variants: [{ id: 123, stock_tecnico: 10, values: {} }],
+      variants: [{ id: 123, maximum_addable_quantity: 10, values: {} }],
       selected_variant: {
         id: 123,
-        stock_tecnico: 10,
+        maximum_addable_quantity: 10,
         images: ['https://example.com/variant1.png', 'https://example.com/variant2.png'],
         values: {},
       },
@@ -294,10 +311,12 @@ describe('ProductDetailPageComponent', () => {
           ],
         },
       ],
-      variants: [{ id: 123, stock_tecnico: 10, values: { color: 'beige', material: 'Cuero' } }],
+      variants: [
+        { id: 123, maximum_addable_quantity: 10, values: { color: 'beige', material: 'Cuero' } },
+      ],
       selected_variant: {
         id: 123,
-        stock_tecnico: 10,
+        maximum_addable_quantity: 10,
         images: ['https://example.com/variant1.png'],
         values: {
           color: 'beige',
@@ -334,8 +353,8 @@ describe('ProductDetailPageComponent', () => {
       purpose: 'entry',
       has_tickets: true,
       variants: [
-        { id: 101, event_date_id: 20, stock_tecnico: 10, values: { event_date: '20' } },
+        { id: 101, event_date_id: 20, maximum_addable_quantity: 10, values: { event_date: '20' } },
-        { id: 102, event_date_id: 21, stock_tecnico: 10, values: { event_date: '21' } },
+        { id: 102, event_date_id: 21, maximum_addable_quantity: 10, values: { event_date: '21' } },
       ],
       attributes: [
         {
@@ -366,7 +385,7 @@ describe('ProductDetailPageComponent', () => {
       selected_variant: {
         id: 101,
         event_date_id: 20,
-        stock_tecnico: 10,
+        maximum_addable_quantity: 10,
         images: [],
         values: {},
       },
@@ -410,7 +429,7 @@ describe('ProductDetailPageComponent', () => {
 
     fixture.componentInstance['selectedVariant'].set({
       id: 1,
-      stock_tecnico: 10,
+      maximum_addable_quantity: 10,
       values: {},
     });
     fixture.detectChanges();
@@ -488,9 +507,33 @@ describe('ProductDetailPageComponent', () => {
         },
       ],
     });
-    expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout'], {
+    expect(routerStub.navigate).toHaveBeenCalledWith(['/checkout', 44]);
-      queryParams: { purchase: 44 },
+  });
-    });
+
+  it('shows the backend purchase-limit message for a direct checkout', async () => {
+    checkoutServiceStub.startCheckout.mockRejectedValue(
+      new HttpErrorResponse({
+        status: 422,
+        error: {
+          code: 'purchase.limit_exceeded',
+          message: 'Podés agregar hasta 2 unidades más de “Auriculares Bluetooth”.',
+          maximum_addable_quantity: 2,
+        },
+      }),
+    );
+    await configureTestingModule();
+    const fixture = TestBed.createComponent(ProductDetailPageComponent);
+    fixture.detectChanges();
+    const buyButton = Array.from(
+      fixture.nativeElement.querySelectorAll('app-button button') as NodeListOf<HTMLButtonElement>,
+    ).find((button) => button.textContent?.trim() === 'Comprar') as HTMLButtonElement;
+
+    buyButton.click();
+    await Promise.resolve();
+
+    expect(toastServiceStub.danger).toHaveBeenCalledWith(
+      'Podés agregar hasta 2 unidades más de “Auriculares Bluetooth”.',
+    );
   });
 
   it('calls CartService.addItem when variant is selected and Add to Cart is clicked', async () => {
@@ -499,13 +542,13 @@ describe('ProductDetailPageComponent', () => {
       variants: [
         {
           id: 123,
-          stock_tecnico: 5,
+          maximum_addable_quantity: 5,
           values: {},
         },
       ],
       selected_variant: {
         id: 123,
-        stock_tecnico: 5,
+        maximum_addable_quantity: 5,
         images: [],
         values: {},
       },
@@ -538,7 +581,7 @@ describe('ProductDetailPageComponent', () => {
     resolveProduct({
       ...mockProduct,
       variants: [],
-      stock_tecnico: 4,
+      maximum_addable_quantity: 4,
     });
 
     await configureTestingModule();
@@ -564,13 +607,13 @@ describe('ProductDetailPageComponent', () => {
       variants: [
         {
           id: 123,
-          stock_tecnico: 5,
+          maximum_addable_quantity: 5,
           values: {},
         },
       ],
       selected_variant: {
         id: 123,
-        stock_tecnico: 5,
+        maximum_addable_quantity: 5,
         images: [],
         values: {},
       },
@@ -602,7 +645,7 @@ describe('ProductDetailPageComponent', () => {
   it('allows unlimited variants to increase quantity without a maximum', async () => {
     const unlimitedVariant = {
       id: 321,
-      stock_tecnico: null,
+      maximum_addable_quantity: null,
       values: {},
     };
     resolveProduct({
@@ -610,7 +653,7 @@ describe('ProductDetailPageComponent', () => {
       inventory_policy: 'unlimited',
       selected_variant: {
         id: 321,
-        stock_tecnico: null,
+        maximum_addable_quantity: null,
         images: [],
         values: {},
       },
@@ -634,7 +677,7 @@ describe('ProductDetailPageComponent', () => {
   it('caps an unlimited variant at the per-user purchase limit', async () => {
     const unlimitedVariant = {
       id: 322,
-      stock_tecnico: null,
+      maximum_addable_quantity: 2,
       values: {},
     };
     resolveProduct({
@@ -643,7 +686,7 @@ describe('ProductDetailPageComponent', () => {
       max_units_per_user: 2,
       selected_variant: {
         id: 322,
-        stock_tecnico: null,
+        maximum_addable_quantity: 2,
         images: [],
         values: { event_date: '20' },
       },
@@ -667,14 +710,14 @@ describe('ProductDetailPageComponent', () => {
   it('disables purchase actions for tracked variants without stock', async () => {
     const trackedVariant = {
       id: 654,
-      stock_tecnico: 0,
+      maximum_addable_quantity: 0,
       values: {},
     };
     resolveProduct({
       ...mockProduct,
       selected_variant: {
         id: 654,
-        stock_tecnico: 0,
+        maximum_addable_quantity: 0,
         images: [],
         values: {},
       },

src/app/features/store/pages/product-detail-page/product-detail-page.component.ts

@@ -17,6 +17,7 @@ import { ActivatedRoute, Router, RouterModule } from '@angular/router';
 import { Subscription } from 'rxjs';
 
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import { CartService } from '../../../../core/services/cart/cart.service';
 import {
@@ -51,6 +52,7 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
   private readonly route = inject(ActivatedRoute);
   private readonly router = inject(Router);
   private readonly catalogService = inject(CatalogService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly toastService = inject(ToastService);
   private readonly cartService = inject(CartService);
   private readonly checkoutService = inject(CheckoutService);
@@ -64,6 +66,7 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
 
   private routeSub: Subscription | null = null;
   private productSub: Subscription | null = null;
+  private availabilityChangedSub: Subscription | null = null;
   private carouselResizeObserver: ResizeObserver | null = null;
   private observedCarouselPreview: HTMLElement | null = null;
   private measurementTimer: ReturnType<typeof setTimeout> | null = null;
@@ -98,27 +101,23 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
     const variant = this.selectedVariant();
     if (!prod) return 0;
 
-    const stockLimit = variant
+    return variant
-      ? variant.stock_tecnico
+      ? (variant.maximum_addable_quantity ?? null)
       : prod.variants.length === 0
-        ? (prod.stock_tecnico ?? null)
+        ? (prod.maximum_addable_quantity ?? null)
         : 0;
-    const userLimit = prod.max_units_per_user ?? null;
-
-    if (stockLimit === null) return userLimit;
-    if (userLimit === null) return stockLimit;
-    return Math.min(stockLimit, userLimit);
   });
   protected readonly selectedVariantAvailable = computed(() => {
     const prod = this.product();
     if (!prod) return false;
+    if (this.selectedVariantMax() === 0) return false;
 
     const variant = this.selectedVariant();
-    if (variant) return this.isVariantAvailable(variant, prod);
+    if (variant) return this.isVariantAvailable(variant);
     if (prod.purpose === 'entry') return false;
     if (prod.variants.length > 0) return false;
 
-    return prod.inventory_policy === 'unlimited' || (prod.stock_tecnico ?? 0) > 0;
+    return this.selectedVariantMax() !== 0;
   });
   protected readonly descriptionExpanded = signal(false);
   protected readonly descriptionMaxHeight = signal(0);
@@ -154,6 +153,10 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
   }
 
   ngOnInit(): void {
+    this.availabilityChangedSub = this.catalogAvailabilityService.availabilityChanged$.subscribe(
+      () => this.refreshProductAvailability(),
+    );
+
     this.routeSub = this.route.data.subscribe((data) => {
       const resolvedData = data['productDetailData'] as ProductDetailResolvedData | undefined;
 
@@ -164,6 +167,7 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy(): void {
+    this.availabilityChangedSub?.unsubscribe();
     this.routeSub?.unsubscribe();
     this.productSub?.unsubscribe();
     this.carouselResizeObserver?.disconnect();
@@ -200,6 +204,32 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
       });
   }
 
+  private refreshProductAvailability(): void {
+    const currentProduct = this.product();
+    if (!currentProduct) {
+      return;
+    }
+
+    const variantId = this.selectedVariant()?.id;
+    this.productSub?.unsubscribe();
+    this.productSub = this.catalogService
+      .withCustomLoading()
+      .getCatalogItem(currentProduct.id, variantId)
+      .subscribe({
+        next: (product) => {
+          this.applyProduct(product, false);
+
+          const maximum = this.selectedVariantMax();
+          if (maximum !== null && this.quantity() > maximum) {
+            this.quantity.set(Math.max(1, maximum));
+          }
+        },
+        error: () => {
+          // Keep the last known availability if the silent refresh fails.
+        },
+      });
+  }
+
   private applyResolvedData(resolvedData: ProductDetailResolvedData): void {
     this.productSub?.unsubscribe();
     this.loading.set(false);
@@ -328,19 +358,21 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
         ],
       });
 
-      await this.router.navigate(['/checkout'], {
+      await this.router.navigate(['/checkout', purchase.id]);
-        queryParams: { purchase: purchase.id },
-      });
     } catch (error) {
       console.error('Failed to create direct purchase:', error);
-      this.toastService.danger('No se pudo iniciar la compra directa.');
+      const message =
+        error instanceof HttpErrorResponse && typeof error.error?.message === 'string'
+          ? error.error.message
+          : 'No se pudo iniciar la compra directa.';
+      this.toastService.danger(message);
     } finally {
       this.creatingDirectPurchase.set(false);
     }
   }
 
-  private isVariantAvailable(variant: CatalogItemVariant, product: CatalogItemDetail): boolean {
+  private isVariantAvailable(variant: CatalogItemVariant): boolean {
-    return product.inventory_policy === 'unlimited' || (variant.stock_tecnico ?? 0) > 0;
+    return variant.maximum_addable_quantity !== 0;
   }
 
   protected toggleDescription(): void {

src/app/features/store/pages/product-detail-page/product-detail-page.resolver.spec.ts

@@ -15,6 +15,7 @@ import {
 describe('productDetailResolver', () => {
   const product: CatalogItemDetail = {
     id: 1,
+    type: 'product',
     category_id: 10,
     brand_id: null,
     slug: 'auriculares-bluetooth',
@@ -28,7 +29,7 @@ describe('productDetailResolver', () => {
     has_tickets: false,
     minimum_use_date: null,
     maximum_use_date: null,
-    stock_tecnico: 0,
+    maximum_addable_quantity: 0,
     attributes: [],
     variants: [],
   };

src/app/features/store/pages/purchase-status-page/purchase-status-page.component.spec.ts

@@ -5,6 +5,7 @@ import {
   CheckoutService,
   PurchaseDetailResponse,
 } from '../../../../core/services/checkout.service';
+import { CartService } from '../../../../core/services/cart/cart.service';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { PurchaseStatusPageComponent } from './purchase-status-page.component';
@@ -66,7 +67,7 @@ describe('PurchaseStatusPageComponent', () => {
     TestBed.resetTestingModule();
   });
 
-  async function render(hasGeneratedTickets: boolean) {
+  async function render(hasGeneratedTickets: boolean, forcedStatus?: string) {
     const checkoutService = {
       getPurchase: vi.fn().mockResolvedValue(purchase(hasGeneratedTickets)),
       withCustomLoading() {
@@ -77,15 +78,24 @@ describe('PurchaseStatusPageComponent', () => {
       navigate: vi.fn().mockResolvedValue(true),
       navigateByUrl: vi.fn().mockResolvedValue(true),
     };
+    const cartService = { clearCart: vi.fn() };
 
     await TestBed.configureTestingModule({
       imports: [PurchaseStatusPageComponent],
       providers: [
         { provide: CheckoutService, useValue: checkoutService },
+        { provide: CartService, useValue: cartService },
         { provide: TenantService, useValue: { tenant: () => tenant } },
         {
           provide: ActivatedRoute,
-          useValue: { snapshot: { paramMap: convertToParamMap({ id: '42' }) } },
+          useValue: {
+            snapshot: {
+              paramMap: convertToParamMap({ id: '42' }),
+              queryParamMap: convertToParamMap(
+                forcedStatus ? { status: forcedStatus } : {},
+              ),
+            },
+          },
         },
         { provide: Router, useValue: router },
       ],
@@ -100,15 +110,22 @@ describe('PurchaseStatusPageComponent', () => {
       fixture,
       element: fixture.nativeElement as HTMLElement,
       checkoutService,
+      cartService,
       router,
     };
   }
 
+  it('clears the cart when the purchase is approved', async () => {
+    const { cartService } = await render(true);
+
+    expect(cartService.clearCart).toHaveBeenCalledOnce();
+  });
+
   it('shows the tickets action when this purchase generated tickets', async () => {
     const { element, checkoutService, router } = await render(true);
 
     expect(checkoutService.getPurchase).toHaveBeenCalledOnce();
-    expect(element.textContent).toContain('Ver mis tickets');
+    expect(element.textContent).toContain('Mis tickets');
     expect(element.textContent).not.toContain('WhatsApp');
 
     element.querySelector<HTMLButtonElement>('app-button button')?.click();
@@ -134,6 +151,14 @@ describe('PurchaseStatusPageComponent', () => {
     openSpy.mockRestore();
   });
 
+  it('shows the expired result without polling when checkout redirects after expiration', async () => {
+    const { element, checkoutService } = await render(false, 'expired');
+
+    expect(element.textContent).toContain('LA COMPRA VENCIÓ');
+    expect(element.textContent).not.toContain('ESTAMOS VERIFICANDO TU PAGO');
+    expect(checkoutService.getPurchase).not.toHaveBeenCalled();
+  });
+
   it('polls every five seconds while the payment is pending and shows the confirmation', async () => {
     vi.useFakeTimers();
 
@@ -147,11 +172,13 @@ describe('PurchaseStatusPageComponent', () => {
           return this;
         },
       };
+      const cartService = { clearCart: vi.fn() };
 
       await TestBed.configureTestingModule({
         imports: [PurchaseStatusPageComponent],
         providers: [
           { provide: CheckoutService, useValue: checkoutService },
+          { provide: CartService, useValue: cartService },
           { provide: TenantService, useValue: { tenant: () => tenant } },
           {
             provide: ActivatedRoute,
@@ -174,6 +201,7 @@ describe('PurchaseStatusPageComponent', () => {
 
       expect(checkoutService.getPurchase).toHaveBeenCalledTimes(2);
       expect(fixture.nativeElement.textContent).toContain('COMPRA REALIZADA!');
+      expect(cartService.clearCart).toHaveBeenCalledOnce();
 
       await vi.advanceTimersByTimeAsync(10_000);
       expect(checkoutService.getPurchase).toHaveBeenCalledTimes(2);
@@ -197,6 +225,7 @@ describe('PurchaseStatusPageComponent', () => {
         imports: [PurchaseStatusPageComponent],
         providers: [
           { provide: CheckoutService, useValue: checkoutService },
+          { provide: CartService, useValue: { clearCart: vi.fn() } },
           { provide: TenantService, useValue: { tenant: () => tenant } },
           {
             provide: ActivatedRoute,

src/app/features/store/pages/purchase-status-page/purchase-status-page.component.ts

@@ -15,6 +15,7 @@ import {
   CheckoutService,
   PurchaseStatusResponse,
 } from '../../../../core/services/checkout.service';
+import { CartService } from '../../../../core/services/cart/cart.service';
 import { findMenu } from '../../../../core/services/menu.utils';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ButtonComponent } from '../../../../shared/components/button/button.component';
@@ -35,6 +36,7 @@ export class PurchaseStatusPageComponent implements OnInit, OnDestroy {
   private readonly route = inject(ActivatedRoute);
   private readonly router = inject(Router);
   private readonly checkoutService = inject(CheckoutService);
+  private readonly cartService = inject(CartService);
   private readonly tenantService = inject(TenantService);
   private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
 
@@ -72,6 +74,12 @@ export class PurchaseStatusPageComponent implements OnInit, OnDestroy {
     this.purchaseId = purchaseId;
     this.tenantCode = tenant.codigo;
 
+    if (this.route.snapshot.queryParamMap?.get('status') === 'expired') {
+      this.status.set('expired');
+      this.isLoading.set(false);
+      return;
+    }
+
     void this.loadStatus();
   }
 
@@ -98,6 +106,10 @@ export class PurchaseStatusPageComponent implements OnInit, OnDestroy {
       this.status.set(status);
       this.hasGeneratedTickets.set(purchase.has_generated_tickets === true);
 
+      if (status === 'approved') {
+        this.cartService.clearCart();
+      }
+
       if (status === 'pending') {
         this.schedulePolling();
       } else {
@@ -107,7 +119,10 @@ export class PurchaseStatusPageComponent implements OnInit, OnDestroy {
       console.error('Failed to fetch purchase status:', error);
 
       if (!this.isDestroyed) {
-        if (isPolling) {
+        if (this.isPurchaseExpiredError(error)) {
+          this.status.set('expired');
+          this.stopPolling();
+        } else if (isPolling) {
           this.schedulePolling();
         } else {
           this.status.set('error');
@@ -154,6 +169,14 @@ export class PurchaseStatusPageComponent implements OnInit, OnDestroy {
     return 'pending';
   }
 
+  private isPurchaseExpiredError(error: unknown): boolean {
+    if (typeof error !== 'object' || error === null || !('error' in error)) {
+      return false;
+    }
+
+    return (error as { error?: { code?: string } }).error?.code === 'purchase.expired';
+  }
+
   protected goToTickets(): void {
     const route = this.ticketsRoute();
 

src/app/features/store/pages/register-page/register-page.component.html

@@ -38,11 +38,13 @@
     <label class="visually-hidden" for="register-password">Contraseña</label>
     <app-input
       id="register-password"
-      type="password"
+      type="password-toggle"
       placeholder="Contraseña"
       [value]="form.controls.password.value"
       [invalid]="showControlError('password')"
+      [visible]="passwordVisible()"
       (valueChange)="updateField('password', $event)"
+      (visibleChange)="setPasswordVisibility($event)"
     />
     @if (getControlError('password'); as errorMessage) {
       <small class="text-danger">{{ errorMessage }}</small>
@@ -51,11 +53,13 @@
     <label class="visually-hidden" for="register-password-repeat">Repetir Contraseña</label>
     <app-input
       id="register-password-repeat"
-      type="password"
+      type="password-toggle"
       placeholder="Repetir Contraseña"
       [value]="form.controls.password_confirmation.value"
       [invalid]="showControlError('password_confirmation')"
+      [visible]="passwordVisible()"
       (valueChange)="updateField('password_confirmation', $event)"
+      (visibleChange)="setPasswordVisibility($event)"
     />
     @if (getControlError('password_confirmation'); as errorMessage) {
       <small class="text-danger">{{ errorMessage }}</small>

src/app/features/store/pages/register-page/register-page.component.spec.ts

@@ -12,6 +12,48 @@ describe('RegisterPageComponent', () => {
     TestBed.resetTestingModule();
   });
 
+  it('shows and hides both password fields with either visibility control', async () => {
+    await TestBed.configureTestingModule({
+      imports: [RegisterPageComponent],
+      providers: [
+        provideRouter([]),
+        { provide: AuthService, useValue: { register: vi.fn() } },
+        { provide: ModalService, useValue: { openSimple: vi.fn() } },
+        { provide: ToastService, useValue: { danger: vi.fn() } }
+      ]
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(RegisterPageComponent);
+    fixture.detectChanges();
+
+    const getPasswordInputs = () =>
+      Array.from(
+        fixture.nativeElement.querySelectorAll(
+          'input#register-password, input#register-password-repeat'
+        )
+      ) as HTMLInputElement[];
+    const getVisibilityButtons = () =>
+      Array.from(
+        fixture.nativeElement.querySelectorAll('button[aria-label]')
+      ) as HTMLButtonElement[];
+
+    expect(getPasswordInputs().map((input) => input.type)).toEqual(['password', 'password']);
+
+    getVisibilityButtons()[0].click();
+    fixture.detectChanges();
+
+    expect(getPasswordInputs().map((input) => input.type)).toEqual(['text', 'text']);
+    expect(getVisibilityButtons().map((button) => button.getAttribute('aria-label'))).toEqual([
+      'Ocultar contraseña',
+      'Ocultar contraseña'
+    ]);
+
+    getVisibilityButtons()[1].click();
+    fixture.detectChanges();
+
+    expect(getPasswordInputs().map((input) => input.type)).toEqual(['password', 'password']);
+  });
+
   it('submits registration data and redirects to /login on success', async () => {
     const authService = {
       register: vi.fn().mockReturnValue(

src/app/features/store/pages/register-page/register-page.component.ts

@@ -48,6 +48,7 @@ export class RegisterPageComponent {
   private readonly submittedState = signal(false);
   private readonly serverErrorState = signal<string | null>(null);
   private readonly isSubmittingState = signal(false);
+  private readonly passwordVisibleState = signal(false);
 
   protected readonly form = this.formBuilder.nonNullable.group({
     nombre_apellido: ['', [Validators.required, Validators.maxLength(TEXT_MAX_LENGTH)]],
@@ -67,6 +68,11 @@ export class RegisterPageComponent {
   protected readonly submitted = this.submittedState.asReadonly();
   protected readonly serverError = this.serverErrorState.asReadonly();
   protected readonly isSubmitting = this.isSubmittingState.asReadonly();
+  protected readonly passwordVisible = this.passwordVisibleState.asReadonly();
+
+  protected setPasswordVisibility(visible: boolean): void {
+    this.passwordVisibleState.set(visible);
+  }
 
   goToLogin(): void {
     void this.router.navigate(['/login']);

src/app/features/store/pages/reset-password-page/reset-password-page.component.html

@@ -13,11 +13,13 @@
     <label class="visually-hidden" for="reset-password-new">Nueva Contraseña</label>
     <app-input
       id="reset-password-new"
-      type="password"
+      type="password-toggle"
       placeholder="Nueva Contraseña"
       [value]="form.controls.password.value"
       [invalid]="showControlError('password')"
+      [visible]="passwordVisible()"
       (valueChange)="updatePassword('password', $event)"
+      (visibleChange)="setPasswordVisibility($event)"
     />
     @if (getControlError('password'); as errorMessage) {
       <small class="text-danger">{{ errorMessage }}</small>
@@ -30,11 +32,13 @@
     </label>
     <app-input
       id="reset-password-confirmation"
-      type="password"
+      type="password-toggle"
       placeholder="Repetir Nueva Contraseña"
       [value]="form.controls.password_confirmation.value"
       [invalid]="showControlError('password_confirmation')"
+      [visible]="passwordVisible()"
       (valueChange)="updatePassword('password_confirmation', $event)"
+      (visibleChange)="setPasswordVisibility($event)"
     />
     @if (getControlError('password_confirmation'); as errorMessage) {
       <small class="text-danger">{{ errorMessage }}</small>

src/app/features/store/pages/reset-password-page/reset-password-page.component.spec.ts

@@ -50,6 +50,43 @@ describe('ResetPasswordPageComponent', () => {
     ];
   }
 
+  it('shows and hides both password fields with either visibility control', async () => {
+    const modalService = {
+      openSimple: vi.fn(),
+    };
+
+    await TestBed.configureTestingModule({
+      imports: [ResetPasswordPageComponent],
+      providers: resetProviders(modalService),
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(ResetPasswordPageComponent);
+    fixture.detectChanges();
+
+    const getPasswordInputs = () =>
+      Array.from(fixture.nativeElement.querySelectorAll('input')) as HTMLInputElement[];
+    const getVisibilityButtons = () =>
+      Array.from(
+        fixture.nativeElement.querySelectorAll('button[aria-label]'),
+      ) as HTMLButtonElement[];
+
+    expect(getPasswordInputs().map((input) => input.type)).toEqual(['password', 'password']);
+
+    getVisibilityButtons()[0].click();
+    fixture.detectChanges();
+
+    expect(getPasswordInputs().map((input) => input.type)).toEqual(['text', 'text']);
+    expect(getVisibilityButtons().map((button) => button.getAttribute('aria-label'))).toEqual([
+      'Ocultar contraseña',
+      'Ocultar contraseña',
+    ]);
+
+    getVisibilityButtons()[1].click();
+    fixture.detectChanges();
+
+    expect(getPasswordInputs().map((input) => input.type)).toEqual(['password', 'password']);
+  });
+
   it('rejects passwords that do not match', async () => {
     const modalService = {
       openSimple: vi.fn(),

src/app/features/store/pages/reset-password-page/reset-password-page.component.ts

@@ -49,6 +49,7 @@ export class ResetPasswordPageComponent {
   private readonly submittedState = signal(false);
   private readonly isSubmittingState = signal(false);
   private readonly serverErrorState = signal<string | null>(null);
+  private readonly passwordVisibleState = signal(false);
 
   private readonly email = this.route.snapshot.queryParamMap.get('email') ?? '';
   private readonly code = this.route.snapshot.queryParamMap.get('code') ?? '';
@@ -72,6 +73,11 @@ export class ResetPasswordPageComponent {
   protected readonly submitted = this.submittedState.asReadonly();
   protected readonly isSubmitting = this.isSubmittingState.asReadonly();
   protected readonly serverError = this.serverErrorState.asReadonly();
+  protected readonly passwordVisible = this.passwordVisibleState.asReadonly();
+
+  protected setPasswordVisibility(visible: boolean): void {
+    this.passwordVisibleState.set(visible);
+  }
 
   protected updatePassword(controlName: PasswordControlName, value: string | number): void {
     this.form.controls[controlName].setValue(String(value));

src/app/features/store/pages/search-page/search-page.component.spec.ts

@@ -7,6 +7,7 @@ import { beforeEach, describe, expect, it, vi } from 'vitest';
 
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -108,6 +109,16 @@ describe('SearchPageComponent', () => {
     );
   });
 
+  it('repeats the current search when catalog availability changes', () => {
+    const fixture = TestBed.createComponent(SearchPageComponent);
+    fixture.detectChanges();
+
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+
+    expect(searchCatalog).toHaveBeenCalledTimes(2);
+    expect(searchCatalog).toHaveBeenLastCalledWith({ q: 'running', page: 1 });
+  });
+
   it('renders the search title and query subtitle with the category header layout', () => {
     const fixture = TestBed.createComponent(SearchPageComponent);
     fixture.detectChanges();

src/app/features/store/pages/search-page/search-page.component.ts

@@ -9,12 +9,25 @@ import {
   signal,
 } from '@angular/core';
 import { ActivatedRoute, Router } from '@angular/router';
-import { catchError, distinctUntilChanged, finalize, map, of, switchMap, tap } from 'rxjs';
+import {
+  catchError,
+  combineLatest,
+  distinctUntilChanged,
+  finalize,
+  map,
+  of,
+  startWith,
+  switchMap,
+  tap,
+} from 'rxjs';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
 
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { AuthService } from '../../../../core/services/auth/auth.service';
-import { CheckoutService } from '../../../../core/services/checkout.service';
+import {
+  CheckoutService,
+  isExpiredStockReservationResponse,
+} from '../../../../core/services/checkout.service';
 import {
   CatalogFeaturedItem,
   CatalogFeaturedItems,
@@ -22,6 +35,7 @@ import {
   CatalogProductLayout,
 } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { ApiPaginatedResponse } from '../../../../core/services/api-paginated-response.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -46,6 +60,7 @@ interface SearchRouteState {
 export class SearchPageComponent {
   private readonly minSearchLength = 3;
   private readonly cartService = inject(CartService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly catalogService = inject(CatalogService);
   private readonly injector = inject(Injector);
   private readonly destroyRef = inject(DestroyRef);
@@ -86,26 +101,33 @@ export class SearchPageComponent {
   });
 
   constructor() {
-    this.route.queryParamMap
+    const routeState$ = this.route.queryParamMap.pipe(
-      .pipe(
+      map(
-        map(
+        (params): SearchRouteState => ({
-          (params): SearchRouteState => ({
+          query: params.get('q')?.trim() ?? '',
-            query: params.get('q')?.trim() ?? '',
+          page: this.parsePage(params.get('page')),
-            page: this.parsePage(params.get('page')),
-          }),
-        ),
-        distinctUntilChanged(
-          (previous, current) => previous.query === current.query && previous.page === current.page,
-        ),
-        tap(({ query }) => {
-          this.query.set(query);
-          this.results.set(null);
-          this.error.set(
-            query.length >= this.minSearchLength
-              ? null
-              : `Ingresá al menos ${this.minSearchLength} caracteres para buscar.`,
-          );
         }),
+      ),
+      distinctUntilChanged(
+        (previous, current) => previous.query === current.query && previous.page === current.page,
+      ),
+      tap(({ query }) => {
+        this.query.set(query);
+        this.results.set(null);
+        this.error.set(
+          query.length >= this.minSearchLength
+            ? null
+            : `Ingresá al menos ${this.minSearchLength} caracteres para buscar.`,
+        );
+      }),
+    );
+
+    combineLatest([
+      routeState$,
+      this.catalogAvailabilityService.availabilityChanged$.pipe(startWith(undefined)),
+    ])
+      .pipe(
+        map(([routeState]) => routeState),
         switchMap(({ query, page }) => {
           if (query.length < this.minSearchLength) {
             return of(null);
@@ -180,10 +202,20 @@ export class SearchPageComponent {
               ],
             },
       );
-      await this.router.navigate(['/checkout'], { queryParams: { purchase: purchase.id } });
+      await this.router.navigate(['/checkout', purchase.id]);
     } catch (error) {
       console.error('Failed to create direct purchase:', error);
-      this.toastService.danger('No se pudo iniciar la compra directa.');
+      const message =
+        error instanceof HttpErrorResponse && typeof error.error?.message === 'string'
+          ? error.error.message
+          : 'No se pudo iniciar la compra directa.';
+      this.toastService.danger(message);
+
+      if (error instanceof HttpErrorResponse && isExpiredStockReservationResponse(error.error)) {
+        this.cartService.loadCart(true).subscribe({
+          error: (refreshError) => console.error('Error refreshing expired cart', refreshError),
+        });
+      }
     } finally {
       this.creatingDirectPurchase.set(false);
     }

src/app/features/store/pages/store-home-page/store-home-page.component.html

@@ -23,7 +23,7 @@
   </p>
 } @else {
   @for (group of catalog(); track group.id) {
-    <app-store-section [title]="group.title">
+    <app-store-section [attr.id]="group.code" [title]="group.title">
       <app-product-list
         [layout]="group.layout"
         [groupLayout]="group.group_layout"

src/app/features/store/pages/store-home-page/store-home-page.component.scss

@@ -11,6 +11,10 @@ app-store-section + app-store-section {
   margin-top: clamp(3rem, 6vw, 5rem);
 }
 
+app-store-section[id] {
+  scroll-margin-top: 8rem;
+}
+
 :host > .store-home__additional-info:not(:first-child) {
   margin-top: clamp(3rem, 6vw, 5rem);
 }

src/app/features/store/pages/store-home-page/store-home-page.component.spec.ts

@@ -12,6 +12,7 @@ import {
   CatalogFeaturedItem,
 } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { Tenant } from '../../../../core/services/tenant.interface';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
@@ -58,6 +59,7 @@ function createCatalog(
   return [
     {
       id: 7,
+      code: 'destacados',
       title: 'Destacados',
       layout: 'column_with_image',
       group_layout: 'paginated',
@@ -77,12 +79,14 @@ function provideActivatedRoute(catalogData: StoreHomeCatalogResolvedData) {
 const pageOneItems: CatalogFeaturedItem[] = [
   {
     id: 1,
+    type: 'product',
     nombre: 'Auriculares Bluetooth',
     precio: '24999.00',
     image: '/catalog/auriculares.jpg',
   },
   {
     id: 2,
+    type: 'product',
     nombre: 'Teclado Mecanico',
     precio: '18999.00',
     image: null,
@@ -149,6 +153,7 @@ describe('StoreHomePageComponent', () => {
     const element = fixture.nativeElement as HTMLElement;
 
     expect(catalogServiceStub.getCatalog).not.toHaveBeenCalled();
+    expect(element.querySelector('app-store-section')?.id).toBe('destacados');
     expect(element.querySelector('.store-section__title')?.textContent?.trim()).toBe('Destacados');
     expect(element.querySelectorAll('app-product-column-with-image')).toHaveLength(2);
     expect(element.textContent).toContain('Auriculares Bluetooth');
@@ -157,6 +162,30 @@ describe('StoreHomePageComponent', () => {
     );
   });
 
+  it('reloads the catalog when availability changes', async () => {
+    const refreshedCatalog = createCatalog();
+    const catalogServiceStub = {
+      getCatalog: vi.fn().mockReturnValue(of(refreshedCatalog)),
+      getFeaturedGroupItems: vi.fn(),
+      withCustomLoading: vi.fn(),
+    };
+    catalogServiceStub.withCustomLoading.mockReturnValue(catalogServiceStub);
+
+    await TestBed.configureTestingModule({
+      imports: [StoreHomePageComponent],
+      providers: [
+        provideActivatedRoute({ response: createCatalog(), error: null }),
+        { provide: CatalogService, useValue: catalogServiceStub },
+      ],
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(StoreHomePageComponent);
+    fixture.detectChanges();
+    TestBed.inject(CatalogAvailabilityService).notifyAvailabilityChanged();
+
+    expect(catalogServiceStub.getCatalog).toHaveBeenCalledOnce();
+  });
+
   it('renders the carousel URLs received in tenant extras', async () => {
     const carousel = ['https://example.com/carousel-1.webp', 'https://example.com/carousel-2.webp'];
 
@@ -376,7 +405,9 @@ describe('StoreHomePageComponent', () => {
   });
 
   it('requests another page for the selected featured group', async () => {
-    const pageTwoItems = [{ id: 3, nombre: 'Mouse Gamer', precio: '15999.00', image: null }];
+    const pageTwoItems: CatalogFeaturedItem[] = [
+      { id: 3, type: 'product', nombre: 'Mouse Gamer', precio: '15999.00', image: null },
+    ];
     const catalogServiceStub = {
       getCatalog: vi.fn(),
       getFeaturedGroupItems: vi.fn().mockReturnValue(of(createItemsPage(pageTwoItems, 2, 2))),

src/app/features/store/pages/store-home-page/store-home-page.component.ts

@@ -15,11 +15,13 @@ import { finalize, Subscription } from 'rxjs';
 import { CartService } from '../../../../core/services/cart/cart.service';
 import { AuthService } from '../../../../core/services/auth/auth.service';
 import { CatalogFeaturedGroup } from '../../../../core/services/catalog/catalog.interface';
+import { CatalogAvailabilityService } from '../../../../core/services/catalog/catalog-availability.service';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
 import { TenantService } from '../../../../core/services/tenant.service';
 import { ToastService } from '../../../../core/services/toast.service';
 import {
   CheckoutService,
+  isExpiredStockReservationResponse,
   isInsufficientStockResponse,
 } from '../../../../core/services/checkout.service';
 import {
@@ -49,6 +51,7 @@ import {
 })
 export class StoreHomePageComponent implements OnInit, OnDestroy {
   private readonly cartService = inject(CartService);
+  private readonly catalogAvailabilityService = inject(CatalogAvailabilityService);
   private readonly catalogService = inject(CatalogService);
   private readonly injector = inject(Injector);
   private readonly route = inject(ActivatedRoute);
@@ -96,9 +99,13 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
   protected readonly hasMainCarouselImages = computed(() => this.mainCarouselImages().length > 0);
 
   private catalogRequestSubscription: Subscription | null = null;
+  private availabilityChangedSubscription: Subscription | null = null;
   private readonly groupRequestSubscriptions = new Map<number, Subscription>();
 
   ngOnInit(): void {
+    this.availabilityChangedSubscription =
+      this.catalogAvailabilityService.availabilityChanged$.subscribe(() => this.loadCatalog(true));
+
     const resolvedData = this.route.snapshot.data['catalogData'] as
       | StoreHomeCatalogResolvedData
       | undefined;
@@ -112,6 +119,7 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
   }
 
   ngOnDestroy(): void {
+    this.availabilityChangedSubscription?.unsubscribe();
     this.catalogRequestSubscription?.unsubscribe();
     this.groupRequestSubscriptions.forEach((subscription) => subscription.unsubscribe());
   }
@@ -210,10 +218,18 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
         tenant.codigo,
         reservedCartId !== null ? { cart_id: reservedCartId } : { direct_items: directItems },
       );
-      await this.router.navigate(['/checkout'], { queryParams: { purchase: purchase.id } });
+      await this.router.navigate(['/checkout', purchase.id]);
     } catch (error) {
       console.error('Failed to create direct purchase:', error);
 
+      if (error instanceof HttpErrorResponse && isExpiredStockReservationResponse(error.error)) {
+        this.toastService.danger(error.error.message);
+        this.cartService.loadCart(true).subscribe({
+          error: (refreshError) => console.error('Error refreshing expired cart', refreshError),
+        });
+        return;
+      }
+
       if (error instanceof HttpErrorResponse && isInsufficientStockResponse(error.error)) {
         const unavailableIds = error.error.unavailable_items
           .map((item) => item.variant_id)
@@ -224,6 +240,11 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
         return;
       }
 
+      if (error instanceof HttpErrorResponse && typeof error.error?.message === 'string') {
+        this.toastService.danger(error.error.message);
+        return;
+      }
+
       this.toastService.danger('No se pudo iniciar la compra directa.');
     } finally {
       this.creatingDirectPurchase.set(false);
@@ -259,20 +280,27 @@ export class StoreHomePageComponent implements OnInit, OnDestroy {
     });
   }
 
-  private loadCatalog(): void {
+  private loadCatalog(silent = false): void {
-    this.loading.set(true);
+    if (!silent) {
-    this.error.set(null);
+      this.loading.set(true);
+      this.error.set(null);
+    }
     this.catalogRequestSubscription?.unsubscribe();
 
     this.catalogRequestSubscription = this.catalogService
       .withCustomLoading()
       .getCatalog()
       .subscribe({
-        next: (catalog) => this.catalog.set(catalog),
+        next: (catalog) => {
+          this.catalog.set(catalog);
+          this.error.set(null);
+        },
         error: () => {
-          this.catalog.set([]);
+          if (!silent) {
+            this.catalog.set([]);
+            this.error.set(STORE_HOME_PRODUCTS_ERROR_MESSAGE);
+          }
           this.loading.set(false);
-          this.error.set(STORE_HOME_PRODUCTS_ERROR_MESSAGE);
         },
         complete: () => this.loading.set(false),
       });

src/app/features/store/store.routes.ts

@@ -91,15 +91,6 @@ export const routes: Routes = [
             (m) => m.ProductDetailPageComponent,
           ),
       },
-      {
-        path: 'checkout',
-        canActivate: [authGuard, hasMenuGuard('checkout')],
-        canDeactivate: [checkoutPendingPurchaseGuard],
-        loadComponent: () =>
-          import('./pages/checkout-page/checkout-page.component').then(
-            (m) => m.CheckoutPageComponent,
-          ),
-      },
       {
         path: 'checkout/status',
         component: SimpleLayoutComponent,
@@ -113,6 +104,15 @@ export const routes: Routes = [
           },
         ],
       },
+      {
+        path: 'checkout/:id',
+        canActivate: [authGuard, hasMenuGuard('checkout')],
+        canDeactivate: [checkoutPendingPurchaseGuard],
+        loadComponent: () =>
+          import('./pages/checkout-page/checkout-page.component').then(
+            (m) => m.CheckoutPageComponent,
+          ),
+      },
       {
         path: 'ayuda',
         canActivate: [hasMenuGuard('help')],

src/app/shared/components/cart-icon/cart-icon.component.html

@@ -1,7 +1,9 @@
 <button
   type="button"
   [disabled]="disabled()"
+  [class.cart-icon--disabled]="disabled()"
   [attr.aria-label]="ariaLabel()"
+  [attr.aria-disabled]="disabled()"
   class="cart-icon"
 >
   <div class="cart-icon__container">

src/app/shared/components/cart-icon/cart-icon.component.scss

@@ -14,7 +14,9 @@
   color: #666666;
   cursor: pointer;
   outline: none;
-  transition: color 0.15s ease-in-out, transform 0.1s ease-in-out;
+  transition:
+    color 0.15s ease-in-out,
+    transform 0.1s ease-in-out;
   border-radius: 4px;
 
   // Active state subtle scale down
@@ -29,10 +31,12 @@
   }
 
   // Disabled state
-  &:disabled {
+  &:disabled,
-    color: #A0A0A0;
+  &.cart-icon--disabled {
+    color: #b8b8b8;
     cursor: not-allowed;
     pointer-events: none;
+    opacity: 0.45;
   }
 }
 
@@ -59,6 +63,11 @@
   line-height: 1;
 }
 
+.cart-icon:disabled .cart-icon__glyph,
+.cart-icon--disabled .cart-icon__glyph {
+  color: #b8b8b8;
+}
+
 .cart-icon__badge {
   position: absolute;
   top: -8px;

src/app/shared/components/cart-icon/cart-icon.component.spec.ts

@@ -6,7 +6,7 @@ import { CartIconComponent } from './cart-icon.component';
 describe('CartIconComponent', () => {
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [CartIconComponent]
+      imports: [CartIconComponent],
     }).compileComponents();
   });
 
@@ -20,7 +20,7 @@ describe('CartIconComponent', () => {
 
     return {
       fixture,
-      element: fixture.nativeElement as HTMLElement
+      element: fixture.nativeElement as HTMLElement,
     };
   }
 
@@ -47,9 +47,11 @@ describe('CartIconComponent', () => {
   });
 
   it('disables the button when disabled is true', () => {
-    const { element } = setup(undefined, true);
+    const { element } = setup(3, true);
     const button = element.querySelector('button');
     expect(button?.disabled).toBe(true);
+    expect(button?.classList).toContain('cart-icon--disabled');
+    expect(element.querySelector('[data-testid="cart-badge"]')).toBeNull();
   });
 
   it('enables the button when disabled is false', () => {

src/app/shared/components/cart-icon/cart-icon.component.ts

@@ -5,7 +5,7 @@ import { ChangeDetectionStrategy, Component, computed, input } from '@angular/co
   imports: [],
   templateUrl: './cart-icon.component.html',
   styleUrl: './cart-icon.component.scss',
-  changeDetection: ChangeDetectionStrategy.OnPush
+  changeDetection: ChangeDetectionStrategy.OnPush,
 })
 export class CartIconComponent {
   readonly quantity = input<number | null | undefined>(undefined);
@@ -13,6 +13,10 @@ export class CartIconComponent {
   readonly ariaLabel = input<string>('Carrito de compras');
 
   protected readonly hasQuantity = computed(() => {
+    if (this.disabled()) {
+      return false;
+    }
+
     const q = this.quantity();
     return q !== null && q !== undefined && q > 0;
   });

src/app/shared/components/cart-item/cart-item.component.html

@@ -26,7 +26,7 @@
       </div>
     </div>
 
-    @if (hasVariantSelectors() && !quantityDisabled()) {
+    @if (hasVariantSelectors() && !variantDisabled()) {
       <app-variant-selector
         class="cart-item-variant-selector"
         [variants]="variants()"
@@ -55,7 +55,7 @@
           (increase)="onIncrease()"
           (decrease)="onDecrease()"
         />
-        @if (!quantityDisabled() && showRemove()) {
+        @if (!removeDisabled() && allowDelete()) {
           <app-icon-button variant="trash" class="cart-item-remove-btn" (click)="onRemove()" />
         }
       </div>

src/app/shared/components/cart-item/cart-item.component.ts

@@ -31,7 +31,9 @@ export class CartItemComponent {
   readonly quantity = input<number>(1);
   readonly readonly = input<boolean>(false);
   readonly quantityDisabled = input<boolean>(false);
-  readonly showRemove = input<boolean>(true);
+  readonly variantDisabled = input<boolean>(false);
+  readonly removeDisabled = input<boolean>(false);
+  readonly allowDelete = input<boolean>(true);
 
   readonly quantityChange = output<number>();
   readonly remove = output<void>();
@@ -61,7 +63,7 @@ export class CartItemComponent {
   }
 
   protected onVariantChange(variant: unknown): void {
-    if (!this.quantityDisabled() && typeof variant === 'number') {
+    if (!this.variantDisabled() && typeof variant === 'number') {
       this.variantChange.emit(variant);
     }
   }

src/app/shared/components/cart/cart.component.html

@@ -1,20 +1,25 @@
 <section
-  class="d-flex flex-column h-100 overflow-hidden text-secondary"
+  class="d-flex flex-column overflow-hidden text-secondary cart-shell"
   [style.background-color]="backgroundColor()"
 >
   <header class="d-flex align-items-center p-3 justify-content-between bg-transparent cart-header">
     <h2 class="m-0 text-uppercase fw-bold cart-title">{{ title() }}</h2>
 
     <div class="d-flex align-items-center cart-header-actions">
-      @if (!readonly() && editable() && allowEditing() && items().length > 0) {
+      @if (
+        allowModify() &&
+        (!readonly() || showModifyWhenReadonly()) &&
+        (requireEditingMode() || modifyAsAction()) &&
+        items().length > 0
+      ) {
         <button
           class="btn btn-link p-0 border-0 cart-edit-btn"
           type="button"
-          [attr.aria-pressed]="editing()"
+          [attr.aria-pressed]="modifyAsAction() ? null : editing()"
           [disabled]="editingDisabled()"
           (click)="toggleEditing()"
         >
-          {{ editing() ? 'Listo' : 'Modificar' }}
+          {{ !modifyAsAction() && editing() ? 'Listo' : 'Modificar' }}
         </button>
       }
 
@@ -48,8 +53,22 @@
         [selectedVariant]="getItemVariant(item)"
         [quantity]="getItemQuantity(item)"
         [readonly]="readonly()"
-        [quantityDisabled]="!editable() || editingDisabled() || (allowEditing() && !editing())"
+        [quantityDisabled]="
-        [showRemove]="allowRemove()"
+          readonly() ||
+          !allowUpdateQuantity() ||
+          editingDisabled() ||
+          (requireEditingMode() && !editing())
+        "
+        [variantDisabled]="
+          readonly() ||
+          !allowUpdateVariant() ||
+          editingDisabled() ||
+          (requireEditingMode() && !editing())
+        "
+        [removeDisabled]="
+          readonly() || !allowDelete() || editingDisabled() || (requireEditingMode() && !editing())
+        "
+        [allowDelete]="allowDelete()"
         (quantityChange)="onItemQuantityChange(idx, $event)"
         (variantChange)="onItemVariantChange(idx, $event)"
         (remove)="onItemRemove(idx)"

src/app/shared/components/cart/cart.component.scss

@@ -1,7 +1,15 @@
 :host {
-  display: block;
+  display: flex;
   width: 100%;
-  height: 100%;
+  min-height: 0;
+  max-height: 100%;
+  overflow: hidden;
+}
+
+.cart-shell {
+  flex: 1 1 auto;
+  min-height: 0;
+  max-height: 100%;
 }
 
 .cart-header {

src/app/shared/components/cart/cart.component.spec.ts

@@ -175,6 +175,63 @@ describe('CartComponent', () => {
     expect(removeItem).not.toHaveBeenCalled();
   });
 
+  it('notifies the user and refreshes the cart when a mutation reports expiration', async () => {
+    const expirationMessage = 'La reserva de stock venció. Usá el carrito activo para continuar.';
+    const removeItem = vi.fn().mockReturnValue(
+      throwError(() => ({
+        error: {
+          code: 'stock_reservation.expired',
+          message: expirationMessage,
+        },
+      })),
+    );
+    const loadCart = vi.fn().mockReturnValue(of({}));
+    const danger = vi.fn();
+
+    await TestBed.configureTestingModule({
+      imports: [CartComponent],
+      providers: [
+        {
+          provide: CartService,
+          useValue: {
+            cart: signal(null).asReadonly(),
+            loadCart,
+            updateItemQuantity: vi.fn(),
+            removeItem,
+          },
+        },
+        {
+          provide: ModalService,
+          useValue: { openConfirmDelete: vi.fn().mockReturnValue(of(true)) },
+        },
+        {
+          provide: ToastService,
+          useValue: { success: vi.fn(), info: vi.fn(), danger },
+        },
+      ],
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(CartComponent);
+    fixture.componentRef.setInput('items', [
+      {
+        cartItemId: 10,
+        imageUrl: null,
+        product: 'Producto vencido',
+        originalPrice: null,
+        discountedPrice: 1000,
+        discountPercentage: null,
+        attributes: [],
+        quantity: 1,
+      },
+    ]);
+    fixture.detectChanges();
+
+    fixture.debugElement.query(By.css('app-cart-item')).triggerEventHandler('remove');
+
+    expect(danger).toHaveBeenCalledWith(expirationMessage);
+    expect(loadCart).toHaveBeenCalledOnce();
+  });
+
   it('optimistically updates quantity and rolls back on error', async () => {
     vi.useFakeTimers();
     const updateItemQuantity = vi.fn().mockReturnValue(throwError(() => new Error('Error')));
@@ -340,7 +397,7 @@ describe('CartComponent', () => {
         quantity: 1,
       },
     ]);
-    fixture.componentRef.setInput('allowEditing', true);
+    fixture.componentRef.setInput('requireEditingMode', true);
     const editingChange = vi.fn();
     fixture.componentInstance.editing.subscribe(editingChange);
     fixture.detectChanges();
@@ -367,6 +424,57 @@ describe('CartComponent', () => {
     expect(editingChange).toHaveBeenLastCalledWith(false);
   });
 
+  it('emits Modificar as an action without toggling to Listo', async () => {
+    await TestBed.configureTestingModule({
+      imports: [CartComponent],
+      providers: [
+        {
+          provide: CartService,
+          useValue: {
+            cart: signal(null).asReadonly(),
+            updateItemQuantity: vi.fn(),
+            removeItem: vi.fn(),
+          },
+        },
+        { provide: ModalService, useValue: {} },
+        {
+          provide: ToastService,
+          useValue: { success: vi.fn(), info: vi.fn(), danger: vi.fn() },
+        },
+      ],
+    }).compileComponents();
+
+    const fixture = TestBed.createComponent(CartComponent);
+    fixture.componentRef.setInput('items', [
+      {
+        cartItemId: 10,
+        imageUrl: null,
+        product: 'Producto de prueba',
+        originalPrice: null,
+        discountedPrice: 1000,
+        discountPercentage: null,
+        attributes: [],
+        quantity: 1,
+      },
+    ]);
+    fixture.componentRef.setInput('readonly', true);
+    fixture.componentRef.setInput('showModifyWhenReadonly', true);
+    fixture.componentRef.setInput('modifyAsAction', true);
+    const modify = vi.fn();
+    fixture.componentInstance.modify.subscribe(modify);
+    fixture.detectChanges();
+
+    const modifyButton = fixture.debugElement.query(By.css('.cart-edit-btn'));
+    expect(modifyButton.nativeElement.textContent.trim()).toBe('Modificar');
+
+    modifyButton.nativeElement.click();
+    fixture.detectChanges();
+
+    expect(modify).toHaveBeenCalledOnce();
+    expect(modifyButton.nativeElement.textContent.trim()).toBe('Modificar');
+    expect(fixture.componentInstance.editing()).toBe(false);
+  });
+
   it('allows editing directly when the optional Modificar toggle is disabled', async () => {
     await TestBed.configureTestingModule({
       imports: [CartComponent],
@@ -408,7 +516,7 @@ describe('CartComponent', () => {
     ).toBe(false);
   });
 
-  it('hides the edit toggle and disables quantity changes when editable is false', async () => {
+  it('hides the edit toggle and disables quantity changes when quantity updates are false', async () => {
     await TestBed.configureTestingModule({
       imports: [CartComponent],
       providers: [
@@ -441,8 +549,9 @@ describe('CartComponent', () => {
         quantity: 1,
       },
     ]);
-    fixture.componentRef.setInput('allowEditing', true);
+    fixture.componentRef.setInput('requireEditingMode', true);
-    fixture.componentRef.setInput('editable', false);
+    fixture.componentRef.setInput('allowModify', false);
+    fixture.componentRef.setInput('allowUpdateQuantity', false);
     const quantityChange = vi.fn();
     fixture.componentInstance.itemQuantityChange.subscribe(quantityChange);
     fixture.detectChanges();

src/app/shared/components/cart/cart.component.ts

@@ -53,19 +53,32 @@ export class CartComponent {
   readonly total = input<number>(0);
   readonly backgroundColor = input<string>('#ffffff');
   readonly readonly = input<boolean>(false);
-  readonly editable = input<boolean>(true);
+  readonly allowUpdateQuantity = input<boolean>(true);
-  readonly allowEditing = input<boolean>(false);
+  readonly allowModify = input<boolean>(true);
-  readonly allowRemove = input<boolean>(true);
+  readonly showModifyWhenReadonly = input<boolean>(false);
+  readonly modifyAsAction = input<boolean>(false);
+  readonly requireEditingMode = input<boolean>(false);
+  readonly allowUpdateVariant = input<boolean>(true);
+  readonly allowDelete = input<boolean>(true);
   readonly persistQuantityChanges = input<boolean>(true);
+  readonly persistVariantChanges = input<boolean>(true);
+  readonly persistDeleteChanges = input<boolean>(true);
   readonly editingDisabled = input<boolean>(false);
   readonly editing = model<boolean>(false);
 
   readonly closed = output<void>();
+  readonly modify = output<void>();
   readonly itemQuantityChange = output<{
     item: CartItemMock;
     index: number;
     quantity: number;
   }>();
+  readonly itemVariantChange = output<{
+    item: CartItemMock;
+    index: number;
+    variantId: number;
+  }>();
+  readonly itemRemove = output<{ item: CartItemMock; index: number }>();
 
   protected readonly quantityOverrides = signal<Record<number, number>>({});
   protected readonly variantOverrides = signal<Record<number, number>>({});
@@ -85,11 +98,12 @@ export class CartComponent {
                     this.clearOverride(update.cartItemId);
                   },
                   error: (err: HttpErrorResponse) => {
-                    console.error('Error updating cart quantity', err);
-                    const msg =
-                      err.error?.message || 'Error al actualizar la cantidad del producto.';
-                    this.toastService.danger(msg);
                     this.clearOverride(update.cartItemId);
+                    this.handleMutationError(
+                      err,
+                      'Error al actualizar la cantidad del producto.',
+                      'Error updating cart quantity',
+                    );
                   },
                 }),
                 catchError(() => EMPTY),
@@ -125,7 +139,7 @@ export class CartComponent {
   }
 
   protected onItemQuantityChange(index: number, newQuantity: number): void {
-    if (!this.editable()) {
+    if (!this.allowUpdateQuantity()) {
       return;
     }
 
@@ -170,11 +184,19 @@ export class CartComponent {
   }
 
   protected onItemVariantChange(index: number, variantId: number): void {
+    if (this.readonly() || !this.allowUpdateVariant() || this.editingDisabled()) return;
+
     const item = this.items()[index];
     const cartItemId = item?.cartItemId;
 
     if (!item || !cartItemId || variantId === this.getItemVariant(item)) return;
 
+    this.itemVariantChange.emit({ item, index, variantId });
+
+    if (!this.persistVariantChanges()) {
+      return;
+    }
+
     this.variantOverrides.update((overrides) => ({ ...overrides, [cartItemId]: variantId }));
     this.cartService
       .updateItemVariant(cartItemId, this.getItemQuantity(item), variantId)
@@ -184,9 +206,12 @@ export class CartComponent {
           this.toastService.success(response.message || 'Variante actualizada.');
         },
         error: (error: HttpErrorResponse) => {
-          console.error('Error updating cart item variant', error);
           this.clearVariantOverride(cartItemId);
-          this.toastService.danger(error.error?.message || 'No se pudo actualizar la variante.');
+          this.handleMutationError(
+            error,
+            'No se pudo actualizar la variante.',
+            'Error updating cart item variant',
+          );
         },
       });
   }
@@ -200,6 +225,8 @@ export class CartComponent {
   }
 
   protected onItemRemove(index: number): void {
+    if (this.readonly() || !this.allowDelete() || this.editingDisabled()) return;
+
     const target = this.resolveRemoveTarget(index);
 
     if (!target) {
@@ -215,7 +242,14 @@ export class CartComponent {
       })
       .subscribe((confirmed) => {
         if (confirmed) {
-          this.removeItem(target.cartItemId);
+          const item = this.items()[index];
+          if (item) {
+            this.itemRemove.emit({ item, index });
+          }
+
+          if (this.persistDeleteChanges()) {
+            this.removeItem(target.cartItemId);
+          }
         }
       });
   }
@@ -225,7 +259,12 @@ export class CartComponent {
   protected readonly formattedTotal = computed(() => this.formatCurrency(this.total()));
 
   protected toggleEditing(): void {
-    if (!this.editable() || this.editingDisabled()) {
+    if (!this.allowModify() || this.editingDisabled()) {
+      return;
+    }
+
+    if (this.modifyAsAction()) {
+      this.modify.emit();
       return;
     }
 
@@ -270,10 +309,29 @@ export class CartComponent {
         this.toastService.info(msg);
       },
       error: (err: HttpErrorResponse) => {
-        console.error('Error removing item from cart', err);
+        this.handleMutationError(
-        const msg = err.error?.message || 'Error al eliminar el producto del carrito.';
+          err,
-        this.toastService.danger(msg);
+          'Error al eliminar el producto del carrito.',
+          'Error removing item from cart',
+        );
       },
     });
   }
+
+  private handleMutationError(
+    error: HttpErrorResponse,
+    fallbackMessage: string,
+    logMessage: string,
+  ): void {
+    console.error(logMessage, error);
+    this.toastService.danger(error.error?.message || fallbackMessage);
+
+    if (error.error?.code !== 'stock_reservation.expired') {
+      return;
+    }
+
+    this.cartService.loadCart(true).subscribe({
+      error: (refreshError) => console.error('Error refreshing expired cart', refreshError),
+    });
+  }
 }

src/app/shared/components/product-column-with-image/product-column-with-image.component.html

@@ -31,9 +31,16 @@
   <div
     class="product-column-with-image__body p-3 d-flex flex-column align-items-center text-center flex-grow-1"
   >
-    <h3 class="product-column-with-image__title text-uppercase text-black mb-4">{{ title() }}</h3>
+    <h3 class="product-column-with-image__title text-uppercase text-black mb-4">
+      {{ title() }}
+      @if (unavailableMessage(); as message) {
+        <app-tooltip [message]="message" />
+      }
+    </h3>
 
-    <div class="product-column-with-image__prices d-flex align-items-center justify-content-center gap-2">
+    <div
+      class="product-column-with-image__prices d-flex align-items-center justify-content-center gap-2"
+    >
       <span class="product-column-with-image__price-discounted text-primary">
         {{ formattedDiscountedPrice() }}
       </span>
@@ -53,7 +60,12 @@
     </div>
 
     <div class="product-column-with-image__action mt-auto w-100">
-      <app-button variant="primary" class="w-100" (click)="buy.emit()">
+      <app-button
+        variant="primary"
+        class="w-100"
+        [disabled]="!!unavailableMessage()"
+        (click)="onBuy()"
+      >
         {{ buttonText() }}
       </app-button>
     </div>

src/app/shared/components/product-column-with-image/product-column-with-image.component.ts

@@ -2,10 +2,11 @@ import { NgOptimizedImage } from '@angular/common';
 import { ChangeDetectionStrategy, Component, computed, input, output } from '@angular/core';
 
 import { ButtonComponent } from '../button/button.component';
+import { TooltipComponent } from '../tooltip/tooltip.component';
 
 @Component({
   selector: 'app-product-column-with-image',
-  imports: [ButtonComponent, NgOptimizedImage],
+  imports: [ButtonComponent, NgOptimizedImage, TooltipComponent],
   templateUrl: './product-column-with-image.component.html',
   styleUrl: './product-column-with-image.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -18,9 +19,16 @@ export class ProductColumnWithImageComponent {
   readonly transferPrice = input<number | null>(null);
   readonly buttonText = input<string>('Comprar');
   readonly imagePriority = input<boolean>(false);
+  readonly unavailableMessage = input<string | null>(null);
 
   readonly buy = output<void>();
 
+  protected onBuy(): void {
+    if (this.unavailableMessage()) return;
+
+    this.buy.emit();
+  }
+
   readonly discountedPrice = computed(() => {
     const original = this.originalPrice();
     const discount = this.discount();

src/app/shared/components/product-list/product-list.component.html

@@ -12,6 +12,8 @@
           [title]="item.nombre"
           [description]="item.descripcion ?? ''"
           [price]="price(item)"
+          [maximumAddableQuantity]="item.maximum_addable_quantity ?? null"
+          [unavailableMessage]="item.unavailable_message ?? null"
           [variants]="item.variants ?? []"
           [saving]="savingProductIds().has(item.id)"
           (buy)="emitRowBuy(item, $event)"
@@ -23,6 +25,8 @@
           [title]="item.nombre"
           [description]="item.descripcion ?? ''"
           [price]="price(item)"
+          [maximumAddableQuantity]="item.maximum_addable_quantity ?? null"
+          [unavailableMessage]="item.unavailable_message ?? null"
           [variants]="item.variants ?? []"
           [saving]="savingProductIds().has(item.id)"
           (buy)="emitColumnBuy(item, $event)"
@@ -36,7 +40,8 @@
           [description]="item.descripcion ?? ''"
           [price]="price(item)"
           [imageUrl]="loadImages() ? (item.image ?? null) : null"
-          [disabled]="loading()"
+          [unavailableMessage]="item.unavailable_message ?? null"
+          [disabled]="loading() || !!item.unavailable_message"
           (buy)="emitTicketBuy(item, $event)"
         />
       }
@@ -45,6 +50,7 @@
           [imageUrl]="loadImages() ? (item.image ?? null) : null"
           [title]="item.nombre"
           [originalPrice]="price(item)"
+          [unavailableMessage]="item.unavailable_message ?? null"
           [imagePriority]="loadImages() && index < 4"
           (buy)="emitProductDetailBuy(item)"
         />

src/app/shared/components/product-list/product-list.component.spec.ts

@@ -193,8 +193,8 @@ describe('ProductListComponent', () => {
     const itemWithVariants: ProductListItem = {
       ...items[0],
       variants: [
-        { id: 91, stock_tecnico: 3, values: { fecha: '10 de octubre' } },
+        { id: 91, maximum_addable_quantity: 3, values: { fecha: '10 de octubre' } },
-        { id: 92, stock_tecnico: 4, values: { fecha: '11 de octubre' } },
+        { id: 92, maximum_addable_quantity: 4, values: { fecha: '11 de octubre' } },
       ],
     };
     const fixture = await render('column_with_cart', [itemWithVariants]);
@@ -214,6 +214,58 @@ describe('ProductListComponent', () => {
     });
   });
 
+  it('caps the quantity at the selected variant maximum', async () => {
+    const itemWithVariants: ProductListItem = {
+      ...items[0],
+      variants: [
+        {
+          id: 91,
+          maximum_addable_quantity: 2,
+          values: { fecha: '10 de octubre' },
+        },
+      ],
+    };
+    const fixture = await render('column_with_cart', [itemWithVariants]);
+    await fixture.whenStable();
+    fixture.detectChanges();
+    const increase = fixture.nativeElement.querySelector(
+      '.quantity-selector__button:last-child',
+    ) as HTMLButtonElement;
+
+    increase.click();
+    fixture.detectChanges();
+
+    expect(
+      (fixture.nativeElement as HTMLElement).querySelector('.quantity-selector__value')
+        ?.textContent,
+    ).toContain('2');
+    expect(increase.disabled).toBe(true);
+  });
+
+  it('disables purchase actions when the selected variant maximum is zero', async () => {
+    const unavailableItem: ProductListItem = {
+      ...items[0],
+      variants: [
+        {
+          id: 91,
+          maximum_addable_quantity: 0,
+          values: { fecha: '10 de octubre' },
+        },
+      ],
+    };
+    const fixture = await render('row', [unavailableItem]);
+    await fixture.whenStable();
+    fixture.detectChanges();
+    const buttons = Array.from(
+      (fixture.nativeElement as HTMLElement).querySelectorAll<HTMLButtonElement>(
+        '.product-row-card__buttons button',
+      ),
+    );
+
+    expect(buttons).toHaveLength(2);
+    expect(buttons.every((button) => button.disabled)).toBe(true);
+  });
+
   it('renders pagination and emits the requested page', async () => {
     const fixture = await render('row');
     const pageChangeSpy = vi.fn();
@@ -252,7 +304,7 @@ describe('ProductListComponent', () => {
         {
           id: 401,
           precio: '10000.00',
-          stock_tecnico: 1,
+          maximum_addable_quantity: 1,
           values: {
             tipo: { value: 'vip', label: 'VIP' },
             sector: { value: 'a', label: 'Sector A' },
@@ -263,7 +315,7 @@ describe('ProductListComponent', () => {
         {
           id: 402,
           precio: '12000.00',
-          stock_tecnico: 1,
+          maximum_addable_quantity: 1,
           values: {
             tipo: { value: 'vip', label: 'VIP' },
             sector: { value: 'a', label: 'Sector A' },

src/app/shared/components/product-row-card/product-row-card.component.html

@@ -3,6 +3,9 @@
   <div class="product-row-card__info d-flex flex-column justify-content-center flex-grow-1">
     <h3 class="product-row-card__title text-uppercase mb-1 m-0">
       {{ title() }}
+      @if (effectiveUnavailableMessage(); as message) {
+        <app-tooltip [message]="message" />
+      }
     </h3>
     @if (effectiveDescription()) {
       <p class="product-row-card__description m-0 mt-1">
@@ -21,7 +24,11 @@
           [(selectedVariant)]="selectedVariant"
         />
 
-        <app-quantity-selector [(quantity)]="quantity"></app-quantity-selector>
+        <app-quantity-selector
+          [(quantity)]="quantity"
+          [max]="effectiveMaximum()"
+          [disabled]="unavailable()"
+        />
       </div>
 
       <span class="product-row-card__price text-primary">
@@ -31,10 +38,16 @@
 
     <div class="product-row-card__buttons">
       <div class="product-row-card__btn-wrapper">
-        <app-button variant="primary" (click)="onBuy()"> Comprar </app-button>
+        <app-button variant="primary" [disabled]="unavailable()" (click)="onBuy()">
+          Comprar
+        </app-button>
       </div>
       <div class="product-row-card__btn-wrapper">
-        <app-button variant="secondary" [disabled]="saving()" (click)="onAddToCart()">
+        <app-button
+          variant="secondary"
+          [disabled]="saving() || unavailable()"
+          (click)="onAddToCart()"
+        >
           {{ saving() ? 'Guardando' : 'Agregar al carrito' }}
         </app-button>
       </div>

src/app/shared/components/product-row-card/product-row-card.component.ts

@@ -1,6 +1,15 @@
-import { ChangeDetectionStrategy, Component, computed, input, model, output } from '@angular/core';
+import {
+  ChangeDetectionStrategy,
+  Component,
+  computed,
+  effect,
+  input,
+  model,
+  output,
+} from '@angular/core';
 import { ButtonComponent } from '../button/button.component';
 import { QuantitySelectorComponent } from '../quantity-selector/quantity-selector.component';
+import { TooltipComponent } from '../tooltip/tooltip.component';
 import {
   VariantSelectorComponent,
   VariantSelectorVariant,
@@ -10,13 +19,14 @@ export interface Variant extends VariantSelectorVariant {
   label?: string;
   descripcion?: string | null;
   precio?: string | number;
-  stock_tecnico?: number | null;
+  maximum_addable_quantity?: number | null;
+  unavailable_message?: string | null;
 }
 
 @Component({
   selector: 'app-product-row-card',
   standalone: true,
-  imports: [ButtonComponent, QuantitySelectorComponent, VariantSelectorComponent],
+  imports: [ButtonComponent, QuantitySelectorComponent, TooltipComponent, VariantSelectorComponent],
   templateUrl: './product-row-card.component.html',
   styleUrl: './product-row-card.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -26,6 +36,8 @@ export class ProductRowCardComponent {
   readonly title = input<string>('');
   readonly description = input<string>('');
   readonly price = input<number>(0);
+  readonly maximumAddableQuantity = input<number | null>(null);
+  readonly unavailableMessage = input<string | null>(null);
   readonly variants = input<Variant[]>([]);
   readonly saving = input(false);
 
@@ -48,11 +60,32 @@ export class ProductRowCardComponent {
 
     return Number.isFinite(variantPrice) ? variantPrice : this.price();
   });
+  protected readonly effectiveMaximum = computed(
+    () => this.selectedVariantData()?.maximum_addable_quantity ?? this.maximumAddableQuantity(),
+  );
+  protected readonly unavailable = computed(() => this.effectiveMaximum() === 0);
+  protected readonly effectiveUnavailableMessage = computed(() => {
+    const selectedVariant = this.selectedVariantData();
+
+    return selectedVariant
+      ? (selectedVariant.unavailable_message ?? null)
+      : this.unavailableMessage();
+  });
 
   readonly formattedPrice = computed(() => this.formatCurrency(this.effectivePrice()));
 
+  constructor() {
+    effect(() => {
+      const maximum = this.effectiveMaximum();
+
+      if (maximum !== null && maximum > 0 && this.quantity() > maximum) {
+        this.quantity.set(maximum);
+      }
+    });
+  }
+
   protected onAddToCart(): void {
-    if (this.saving()) {
+    if (this.saving() || this.unavailable()) {
       return;
     }
 
@@ -63,6 +96,8 @@ export class ProductRowCardComponent {
   }
 
   protected onBuy(): void {
+    if (this.unavailable()) return;
+
     this.buy.emit({
       quantity: this.quantity(),
       variant: this.selectedVariant(),

src/app/shared/components/product-ticket-selector/product-ticket-selector.component.html

@@ -1,7 +1,12 @@
 <article class="ticket-selector">
   <header class="ticket-selector__header">
     <div>
-      <h3 class="ticket-selector__title">{{ title() }}</h3>
+      <h3 class="ticket-selector__title">
+        {{ title() }}
+        @if (unavailableMessage(); as message) {
+          <app-tooltip [message]="message" />
+        }
+      </h3>
       @if (description()) {
         <p class="ticket-selector__description">{{ description() }}</p>
       }

src/app/shared/components/product-ticket-selector/product-ticket-selector.component.ts

@@ -28,6 +28,7 @@ import { ModalService } from '../../../core/services/modal.service';
 import { ToastService } from '../../../core/services/toast.service';
 import { ButtonComponent } from '../button/button.component';
 import { IconButtonComponent } from '../icon-button/icon-button.component';
+import { TooltipComponent } from '../tooltip/tooltip.component';
 
 type TicketSelectionStatus =
   | 'selecting'
@@ -56,7 +57,7 @@ interface TicketSelectionRow {
 
 @Component({
   selector: 'app-product-ticket-selector',
-  imports: [ButtonComponent, IconButtonComponent],
+  imports: [ButtonComponent, IconButtonComponent, TooltipComponent],
   templateUrl: './product-ticket-selector.component.html',
   styleUrl: './product-ticket-selector.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -80,6 +81,7 @@ export class ProductTicketSelectorComponent {
   readonly price = input<number>(0);
   readonly imageUrl = input<string | null>(null);
   readonly disabled = input(false);
+  readonly unavailableMessage = input<string | null>(null);
 
   readonly buy = output<number[]>();
 
@@ -361,7 +363,7 @@ export class ProductTicketSelectorComponent {
     return {
       id: item.variant.id,
       precio: item.variant.precio,
-      stock_tecnico: item.variant.stock_tecnico,
+      maximum_addable_quantity: item.variant.stock_tecnico,
       values: item.variant.values,
     };
   }

src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.html

@@ -1,6 +1,11 @@
 <article class="product-vertical-with-cart-card">
   <div class="product-vertical-with-cart-card__content">
-    <h3 class="product-vertical-with-cart-card__title">{{ title() }}</h3>
+    <h3 class="product-vertical-with-cart-card__title">
+      {{ title() }}
+      @if (effectiveUnavailableMessage(); as message) {
+        <app-tooltip [message]="message" />
+      }
+    </h3>
 
     @if (effectiveDescription()) {
       <p class="product-vertical-with-cart-card__description">{{ effectiveDescription() }}</p>
@@ -11,13 +16,21 @@
     @if (!hasVariants()) {
       <div class="product-vertical-with-cart-card__summary">
         <span class="product-vertical-with-cart-card__price">{{ formattedPrice() }}</span>
-        <app-quantity-selector [(quantity)]="quantity" />
+        <app-quantity-selector
+          [(quantity)]="quantity"
+          [max]="effectiveMaximum()"
+          [disabled]="unavailable()"
+        />
       </div>
     } @else {
       <div class="product-vertical-with-cart-card__variants">
         <div class="product-vertical-with-cart-card__summary">
           <span class="product-vertical-with-cart-card__price">{{ formattedPrice() }}</span>
-          <app-quantity-selector [(quantity)]="quantity" />
+          <app-quantity-selector
+            [(quantity)]="quantity"
+            [max]="effectiveMaximum()"
+            [disabled]="unavailable()"
+          />
         </div>
 
         <div class="product-vertical-with-cart-card__variant-selectors">
@@ -29,14 +42,14 @@
     <div class="product-vertical-with-cart-card__actions">
       <app-button
         variant="primary"
-        [disabled]="hasVariants() && selectedVariant() === null"
+        [disabled]="unavailable() || (hasVariants() && selectedVariant() === null)"
         (click)="onBuy()"
       >
         Comprar
       </app-button>
       <app-button
         variant="secondary"
-        [disabled]="saving() || (hasVariants() && selectedVariant() === null)"
+        [disabled]="saving() || unavailable() || (hasVariants() && selectedVariant() === null)"
         (click)="onAddToCart()"
       >
         {{ saving() ? 'Guardando' : 'Agregar al carrito' }}

src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.spec.ts

@@ -56,6 +56,23 @@ describe('ProductVerticalWithCartCardComponent', () => {
     ).toBeNull();
   });
 
+  it('shows the backend availability message with the reusable tooltip', async () => {
+    const fixture = await createComponent();
+    fixture.componentRef.setInput('maximumAddableQuantity', 0);
+    fixture.componentRef.setInput(
+      'unavailableMessage',
+      'Alcanzaste el cupo máximo permitido para este producto.',
+    );
+    fixture.detectChanges();
+
+    const tooltip = (fixture.nativeElement as HTMLElement).querySelector('app-tooltip');
+
+    expect(tooltip?.querySelector('i.fa-solid.fa-circle-info')).not.toBeNull();
+    expect(tooltip?.textContent).toContain(
+      'Alcanzaste el cupo máximo permitido para este producto.',
+    );
+  });
+
   it('updates the quantity with the reusable quantity selector', async () => {
     const fixture = await createComponent();
     const buttons = fixture.nativeElement.querySelectorAll(

src/app/shared/components/product-vertical-with-cart-card/product-vertical-with-cart-card.component.ts

@@ -1,7 +1,16 @@
-import { ChangeDetectionStrategy, Component, computed, input, model, output } from '@angular/core';
+import {
+  ChangeDetectionStrategy,
+  Component,
+  computed,
+  effect,
+  input,
+  model,
+  output,
+} from '@angular/core';
 
 import { ButtonComponent } from '../button/button.component';
 import { QuantitySelectorComponent } from '../quantity-selector/quantity-selector.component';
+import { TooltipComponent } from '../tooltip/tooltip.component';
 import {
   VariantSelectorComponent,
   VariantSelectorVariant,
@@ -10,11 +19,13 @@ import {
 export interface VerticalCartVariant extends VariantSelectorVariant {
   descripcion?: string | null;
   precio?: string | number;
+  maximum_addable_quantity?: number | null;
+  unavailable_message?: string | null;
 }
 
 @Component({
   selector: 'app-product-vertical-with-cart-card',
-  imports: [ButtonComponent, QuantitySelectorComponent, VariantSelectorComponent],
+  imports: [ButtonComponent, QuantitySelectorComponent, TooltipComponent, VariantSelectorComponent],
   templateUrl: './product-vertical-with-cart-card.component.html',
   styleUrl: './product-vertical-with-cart-card.component.scss',
   changeDetection: ChangeDetectionStrategy.OnPush,
@@ -23,6 +34,8 @@ export class ProductVerticalWithCartCardComponent {
   readonly title = input<string>('');
   readonly description = input<string>('');
   readonly price = input<number>(0);
+  readonly maximumAddableQuantity = input<number | null>(null);
+  readonly unavailableMessage = input<string | null>(null);
   readonly variants = input<VerticalCartVariant[]>([]);
   readonly saving = input(false);
 
@@ -45,9 +58,30 @@ export class ProductVerticalWithCartCardComponent {
   });
   protected readonly formattedPrice = computed(() => this.formatCurrency(this.effectivePrice()));
   protected readonly hasVariants = computed(() => this.variants().length > 0);
+  protected readonly effectiveMaximum = computed(
+    () => this.selectedVariantData()?.maximum_addable_quantity ?? this.maximumAddableQuantity(),
+  );
+  protected readonly unavailable = computed(() => this.effectiveMaximum() === 0);
+  protected readonly effectiveUnavailableMessage = computed(() => {
+    const selectedVariant = this.selectedVariantData();
+
+    return selectedVariant
+      ? (selectedVariant.unavailable_message ?? null)
+      : this.unavailableMessage();
+  });
+
+  constructor() {
+    effect(() => {
+      const maximum = this.effectiveMaximum();
+
+      if (maximum !== null && maximum > 0 && this.quantity() > maximum) {
+        this.quantity.set(maximum);
+      }
+    });
+  }
 
   protected onAddToCart(): void {
-    if (this.saving()) {
+    if (this.saving() || this.unavailable()) {
       return;
     }
 
@@ -55,6 +89,8 @@ export class ProductVerticalWithCartCardComponent {
   }
 
   protected onBuy(): void {
+    if (this.unavailable()) return;
+
     this.buy.emit({ quantity: this.quantity(), variant: this.selectedVariant() });
   }
 

src/app/shared/components/stepper/stepper.component.html

@@ -1,25 +1,27 @@
 <div class="stepper-container">
-
   <!-- Horizontal indicator bar -->
-  <div class="stepper-header">
+  <div class="stepper-header" [class.is-disabled]="disabled()" [attr.aria-disabled]="disabled()">
     @for (step of steps(); track step; let i = $index; let last = $last) {
       <div
         class="stepper-header__item"
         [ngClass]="{
           'is-active': currentStepIndex() === i,
-          'is-completed': currentStepIndex() > i
+          'is-completed': currentStepIndex() > i,
         }"
       >
         <!-- Connecting line before (except first) -->
         @if (i > 0) {
-          <div class="stepper-header__line" [ngClass]="{ 'is-completed': currentStepIndex() > i - 1 }"></div>
+          <div
+            class="stepper-header__line"
+            [ngClass]="{ 'is-completed': currentStepIndex() > i - 1 }"
+          ></div>
         }
 
         <!-- Circle indicator -->
         <div
           class="stepper-header__circle"
           [attr.aria-label]="step.label()"
-          [class.is-clickable]="currentStepIndex() > i"
+          [class.is-clickable]="!disabled() && currentStepIndex() > i"
           (click)="goToStep(i)"
         ></div>
 
@@ -33,5 +35,4 @@
   <div class="stepper-body">
     <ng-content></ng-content>
   </div>
-
 </div>

src/app/shared/components/stepper/stepper.component.scss

@@ -13,6 +13,14 @@
   margin-bottom: 2rem;
   position: relative;
 
+  &.is-disabled {
+    opacity: 0.5;
+
+    .stepper-header__circle {
+      cursor: not-allowed;
+    }
+  }
+
   &__item {
     display: flex;
     flex-direction: column;

src/app/shared/components/stepper/stepper.component.spec.ts

@@ -6,7 +6,7 @@ import { StepComponent } from './step.component';
 @Component({
   imports: [StepperComponent, StepComponent],
   template: `
-    <app-stepper #stepper>
+    <app-stepper #stepper [disabled]="stepperDisabled()">
       <app-step label="Step 1" [isValid]="step1Valid()">
         <div id="content-1">Content 1</div>
       </app-step>
@@ -20,6 +20,7 @@ class TestHostComponent {
   @ViewChild('stepper') stepper!: StepperComponent;
   step1Valid = signal(true);
   step2Valid = signal(true);
+  stepperDisabled = signal(false);
 }
 
 describe('StepperComponent & StepComponent', () => {
@@ -137,4 +138,28 @@ describe('StepperComponent & StepComponent', () => {
     expect(component.stepper.currentStepIndex()).toBe(0);
     expect(fixture.nativeElement.querySelector('#content-1')).not.toBeNull();
   });
+
+  it('blocks all navigation and shows visual feedback while disabled', async () => {
+    const { fixture, component } = await setup();
+    component.stepperDisabled.set(true);
+    fixture.detectChanges();
+
+    component.stepper.next();
+    expect(component.stepper.currentStepIndex()).toBe(0);
+
+    component.stepperDisabled.set(false);
+    fixture.detectChanges();
+    component.stepper.next();
+    expect(component.stepper.currentStepIndex()).toBe(1);
+
+    component.stepperDisabled.set(true);
+    fixture.detectChanges();
+    component.stepper.previous();
+    component.stepper.goToStep(0);
+
+    expect(component.stepper.currentStepIndex()).toBe(1);
+    const header = fixture.nativeElement.querySelector('.stepper-header');
+    expect(header.classList.contains('is-disabled')).toBe(true);
+    expect(header.getAttribute('aria-disabled')).toBe('true');
+  });
 });

src/app/shared/components/stepper/stepper.component.ts

@@ -18,9 +18,12 @@ import { NgClass } from '@angular/common';
 export class StepperComponent {
   readonly steps = contentChildren(StepComponent);
   readonly initialStepIndex = input(0);
+  readonly disabled = input(false);
   readonly currentStepIndex = linkedSignal(() => this.initialStepIndex());
 
   next() {
+    if (this.disabled()) return;
+
     const currentSteps = this.steps();
     const currentIndex = this.currentStepIndex();
     if (currentIndex < currentSteps.length - 1) {
@@ -32,6 +35,8 @@ export class StepperComponent {
   }
 
   previous() {
+    if (this.disabled()) return;
+
     const currentIndex = this.currentStepIndex();
     if (currentIndex > 0) {
       this.currentStepIndex.set(currentIndex - 1);
@@ -39,6 +44,8 @@ export class StepperComponent {
   }
 
   goToStep(index: number) {
+    if (this.disabled()) return;
+
     const targetIndex = index;
     // Only allow navigating to completed steps or the current one
     if (targetIndex < this.currentStepIndex()) {

src/app/shared/components/tooltip/tooltip.component.html

@@ -0,0 +1,11 @@
+<button
+  type="button"
+  class="tooltip-trigger"
+  [attr.aria-describedby]="tooltipId"
+  [attr.aria-label]="message()"
+>
+  <i class="fa-solid fa-circle-info" aria-hidden="true"></i>
+  <span class="tooltip-message" [id]="tooltipId" role="tooltip">
+    {{ message() }}
+  </span>
+</button>

src/app/shared/components/tooltip/tooltip.component.scss

@@ -0,0 +1,62 @@
+:host {
+  display: inline-flex;
+  align-items: center;
+  margin-left: 0.25rem;
+  vertical-align: middle;
+}
+
+.tooltip-trigger {
+  position: relative;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  padding: 0;
+  border: 0;
+  background: transparent;
+  color: var(--tenant-primary, var(--color-primary, #0d6efd));
+  font-size: 1em;
+  line-height: inherit;
+
+  &:focus-visible {
+    border-radius: 50%;
+    outline: 2px solid currentColor;
+    outline-offset: 2px;
+  }
+
+  &:hover .tooltip-message,
+  &:focus-visible .tooltip-message {
+    visibility: visible;
+    opacity: 1;
+    transform: translate(-50%, -0.25rem);
+  }
+}
+
+.tooltip-message {
+  position: absolute;
+  z-index: 1100;
+  bottom: calc(100% + 0.625rem);
+  left: 50%;
+  width: max-content;
+  max-width: min(16rem, 75vw);
+  padding: 0.5rem 0.75rem;
+  border-radius: 0.375rem;
+  border: 1px solid var(--tenant-primary, var(--color-primary, #0d6efd));
+  background: #fff;
+  color: #212529;
+  font-family: inherit;
+  font-size: 0.75rem;
+  font-weight: 400;
+  line-height: 1.35;
+  text-align: center;
+  text-transform: none;
+  letter-spacing: normal;
+  white-space: normal;
+  visibility: hidden;
+  opacity: 0;
+  pointer-events: none;
+  transform: translate(-50%, 0);
+  transition:
+    opacity 0.15s ease,
+    transform 0.15s ease,
+    visibility 0.15s ease;
+}

src/app/shared/components/tooltip/tooltip.component.spec.ts

@@ -0,0 +1,32 @@
+import { TestBed, getTestBed } from '@angular/core/testing';
+import { BrowserTestingModule, platformBrowserTesting } from '@angular/platform-browser/testing';
+import { afterEach, beforeAll, describe, expect, it } from 'vitest';
+
+import { TooltipComponent } from './tooltip.component';
+
+describe('TooltipComponent', () => {
+  beforeAll(() => {
+    try {
+      getTestBed().initTestEnvironment(BrowserTestingModule, platformBrowserTesting());
+    } catch {
+      // Test environment may already be initialized by another setup entrypoint.
+    }
+  });
+
+  afterEach(() => TestBed.resetTestingModule());
+
+  it('renders the reusable danger information tooltip', async () => {
+    await TestBed.configureTestingModule({ imports: [TooltipComponent] }).compileComponents();
+    const fixture = TestBed.createComponent(TooltipComponent);
+    fixture.componentRef.setInput('message', 'Este producto no tiene stock disponible.');
+    fixture.detectChanges();
+
+    const element = fixture.nativeElement as HTMLElement;
+    const trigger = element.querySelector('.tooltip-trigger');
+    const message = element.querySelector('.tooltip-message');
+
+    expect(trigger?.querySelector('i.fa-solid.fa-circle-info')).not.toBeNull();
+    expect(message?.textContent?.trim()).toBe('Este producto no tiene stock disponible.');
+    expect(trigger?.getAttribute('aria-describedby')).toBe(message?.id);
+  });
+});

src/app/shared/components/tooltip/tooltip.component.ts

@@ -0,0 +1,14 @@
+import { ChangeDetectionStrategy, Component, input } from '@angular/core';
+
+let nextTooltipId = 0;
+
+@Component({
+  selector: 'app-tooltip',
+  templateUrl: './tooltip.component.html',
+  styleUrl: './tooltip.component.scss',
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class TooltipComponent {
+  readonly message = input.required<string>();
+  protected readonly tooltipId = `app-tooltip-${nextTooltipId++}`;
+}

src/environments/environment.homo.ts

@@ -1,5 +1,5 @@
 export const environment = {
-  production: false,
+  production: true,
   nombre:"Homologación - activo",
   url:"https://backend.qa.shopit.com.ar/api/",
   urlDescarga:"url/"

src/index.html

@@ -5,7 +5,7 @@
   <title>ShopitFront</title>
   <base href="/">
   <meta name="viewport" content="width=device-width, initial-scale=1">
-  <link rel="icon" type="image/x-icon" href="favicon.ico">
+  <link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'/%3E">
 </head>
 <body>
   <app-root></app-root>

src/styles.scss

@@ -6,6 +6,15 @@
 
 @import '../node_modules/bootstrap/scss/bootstrap';
 
+html,
+body,
+app-root {
+  width: 100%;
+  min-height: 100%;
+  margin: 0;
+  background: #f5f5f5;
+}
+
 :root,
 app-root {
   --border-color: #dddddd;