diff --git a/src/app/core/layout/store-layout/store-header/store-header.component.html b/src/app/core/layout/store-layout/store-header/store-header.component.html
index 975deca..189ede0 100644
--- a/src/app/core/layout/store-layout/store-header/store-header.component.html
+++ b/src/app/core/layout/store-layout/store-header/store-header.component.html
@@ -79,10 +79,13 @@
 
           @if (displayCart()) {
             <app-cart-icon
-              [quantity]="cartQuantity()"
-              ariaLabel="Carrito de compras"
-              title="Carrito"
-              (click)="cartClick.emit()"
+              [quantity]="cartDisabled() ? null : cartQuantity()"
+              [disabled]="cartDisabled()"
+              [ariaLabel]="
+                cartDisabled() ? 'Carrito no disponible durante el checkout' : 'Carrito de compras'
+              "
+              [title]="cartDisabled() ? 'Carrito no disponible durante el checkout' : 'Carrito'"
+              (click)="onCartClick()"
             />
           }
 
diff --git a/src/app/core/layout/store-layout/store-header/store-header.component.ts b/src/app/core/layout/store-layout/store-header/store-header.component.ts
index 3edd038..9d7723b 100644
--- a/src/app/core/layout/store-layout/store-header/store-header.component.ts
+++ b/src/app/core/layout/store-layout/store-header/store-header.component.ts
@@ -39,6 +39,7 @@ export class StoreHeaderComponent {
   readonly displayCategories = input(true);
   readonly displaySeachBar = input(true);
   readonly displayCart = input(true);
+  readonly cartDisabled = input(false);
   readonly cartClick = output<void>();
   readonly ticketsClick = output<void>();
   readonly loginClick = output<void>();
@@ -53,6 +54,14 @@ export class StoreHeaderComponent {
   protected readonly showSearchError = signal(false);
   protected readonly searchControl = new FormControl('', { nonNullable: true });
 
+  protected onCartClick(): void {
+    if (this.cartDisabled()) {
+      return;
+    }
+
+    this.cartClick.emit();
+  }
+
   @HostListener('document:click', ['$event'])
   protected onDocumentClick(event: MouseEvent): void {
     if (!this.isUserDropdownOpen() && !this.isCategoryDropdownOpen() && !this.isMobileMenuOpen()) {
diff --git a/src/app/core/layout/store-layout/store-layout.component.html b/src/app/core/layout/store-layout/store-layout.component.html
index d37b270..896168b 100644
--- a/src/app/core/layout/store-layout/store-layout.component.html
+++ b/src/app/core/layout/store-layout/store-layout.component.html
@@ -12,7 +12,8 @@
     [displayCategories]="tenant()?.display_categories ?? true"
     [displaySeachBar]="tenant()?.display_seach_bar ?? true"
     [displayCart]="displayCart()"
-    (cartClick)="isCartOpen.set(!isCartOpen())"
+    [cartDisabled]="isCheckoutRoute()"
+    (cartClick)="onCartClick()"
     (ticketsClick)="onTicketsClick()"
     (loginClick)="onLoginClick()"
     (logoutClick)="onLogoutClick()"
@@ -20,7 +21,7 @@
     (categorySelect)="onCategorySelect($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
diff --git a/src/app/core/layout/store-layout/store-layout.component.spec.ts b/src/app/core/layout/store-layout/store-layout.component.spec.ts
index cd2209d..6dc5dea 100644
--- a/src/app/core/layout/store-layout/store-layout.component.spec.ts
+++ b/src/app/core/layout/store-layout/store-layout.component.spec.ts
@@ -8,6 +8,7 @@ import {
   ParamMap,
   provideRouter,
   Router,
+  UrlSerializer,
 } from '@angular/router';
 
 import { BehaviorSubject, of } from 'rxjs';
@@ -22,6 +23,7 @@ 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 { TenantUrlSerializer } from '../../services/tenant-url.serializer';
 
 const tenant: Tenant = {
   id: 1,
@@ -164,6 +166,7 @@ describe('StoreLayoutComponent', () => {
       imports: [StoreLayoutComponent],
       providers: [
         provideRouter([]),
+        { provide: UrlSerializer, useClass: TenantUrlSerializer },
         {
           provide: ActivatedRoute,
           useValue: { queryParamMap: queryParamMapState.asObservable() },
@@ -240,6 +243,33 @@ describe('StoreLayoutComponent', () => {
     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?purchase=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('hides the configured header elements when the tenant disables them', () => {
     tenantState.set({
       ...tenant,
diff --git a/src/app/core/layout/store-layout/store-layout.component.ts b/src/app/core/layout/store-layout/store-layout.component.ts
index b5740d0..53e8b10 100644
--- a/src/app/core/layout/store-layout/store-layout.component.ts
+++ b/src/app/core/layout/store-layout/store-layout.component.ts
@@ -1,6 +1,13 @@
 import { Component, computed, DestroyRef, inject, OnInit, signal } from '@angular/core';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
-import { ActivatedRoute, Router, RouterOutlet } from '@angular/router';
+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';
@@ -37,6 +44,7 @@ export class StoreLayoutComponent implements OnInit {
   private readonly destroyRef = inject(DestroyRef);
 
   protected readonly isCartOpen = signal(false);
+  protected readonly isCheckoutRoute = signal(this.isCheckoutUrl(this.router.url));
   protected readonly isCreatingPurchase = signal(false);
   protected readonly displayCart = computed(() => this.tenant()?.display_cart ?? true);
   protected readonly cartEditingPolicy = computed(() => this.tenant()?.cart_editing_policy ?? null);
@@ -149,8 +157,22 @@ 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') {
+      if (params.get('openCart') === 'true' && !this.isCheckoutRoute()) {
         this.isCartOpen.set(true);
       }
     });
@@ -160,10 +182,24 @@ export class StoreLayoutComponent implements OnInit {
     });
   }
 
+  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 },
diff --git a/src/app/shared/components/cart-icon/cart-icon.component.html b/src/app/shared/components/cart-icon/cart-icon.component.html
index 7cf6e49..48cc7d4 100644
--- a/src/app/shared/components/cart-icon/cart-icon.component.html
+++ b/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">
diff --git a/src/app/shared/components/cart-icon/cart-icon.component.scss b/src/app/shared/components/cart-icon/cart-icon.component.scss
index 49426b6..d9e3e7d 100644
--- a/src/app/shared/components/cart-icon/cart-icon.component.scss
+++ b/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 {
-    color: #A0A0A0;
+  &:disabled,
+  &.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;
diff --git a/src/app/shared/components/cart-icon/cart-icon.component.spec.ts b/src/app/shared/components/cart-icon/cart-icon.component.spec.ts
index eaca57a..0aecdac 100644
--- a/src/app/shared/components/cart-icon/cart-icon.component.spec.ts
+++ b/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', () => {
diff --git a/src/app/shared/components/cart-icon/cart-icon.component.ts b/src/app/shared/components/cart-icon/cart-icon.component.ts
index 25d59fc..75cd2d1 100644
--- a/src/app/shared/components/cart-icon/cart-icon.component.ts
+++ b/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;
   });