diff --git a/src/app/core/services/catalog/catalog.interface.ts b/src/app/core/services/catalog/catalog.interface.ts
index ab5d17d..ed700eb 100644
--- a/src/app/core/services/catalog/catalog.interface.ts
+++ b/src/app/core/services/catalog/catalog.interface.ts
@@ -11,3 +11,33 @@ export interface Product {
   brand: string | null;
   images: string[];
 }
+
+export interface ProductAttributeOption {
+  id: number;
+  value: string;
+  label: string;
+  sort_order: number;
+  metadata: Record<string, any> | null;
+}
+
+export interface ProductAttribute {
+  id: number;
+  codigo: string;
+  nombre: string;
+  is_required: boolean;
+  metadata_schema: Record<string, any> | null;
+  type: string;
+  options: ProductAttributeOption[];
+}
+
+export interface ProductVariant {
+  variant_id: number;
+  images: string[];
+  attributes: Record<string, string>;
+}
+
+export interface ProductDetail extends Product {
+  attributes: ProductAttribute[];
+  default_variant: ProductVariant | null;
+}
+
diff --git a/src/app/core/services/catalog/catalog.service.ts b/src/app/core/services/catalog/catalog.service.ts
index 89d5769..3a40197 100644
--- a/src/app/core/services/catalog/catalog.service.ts
+++ b/src/app/core/services/catalog/catalog.service.ts
@@ -6,7 +6,7 @@ import { ApiPaginationQueryParams } from '../api-pagination-query-params.interfa
 import { ApiPaginatedResponse } from '../api-paginated-response.interface';
 import { ApiResponse } from '../api-response.interface';
 import { TenantService } from '../tenant.service';
-import { Product } from './catalog.interface';
+import { Product, ProductDetail } from './catalog.interface';
 
 type HttpParamValue =
   | string
@@ -35,9 +35,9 @@ export class CatalogService {
     );
   }
 
-  getProducto(id: number): Observable<Product> {
+  getProducto(id: number): Observable<ProductDetail> {
     return this.http
-      .get<ApiResponse<Product>>(`${this.tenantApiUrl}/productos/${id}`)
+      .get<ApiResponse<ProductDetail>>(`${this.tenantApiUrl}/productos/${id}`)
       .pipe(map((response) => response.data));
   }
 
diff --git a/src/app/features/store/components/product-carousel/product-carousel.component.html b/src/app/features/store/components/product-carousel/product-carousel.component.html
index 8b187b7..25cb4d3 100644
--- a/src/app/features/store/components/product-carousel/product-carousel.component.html
+++ b/src/app/features/store/components/product-carousel/product-carousel.component.html
@@ -6,7 +6,7 @@
       <img
         [src]="images()[activeIndex()]"
         alt="Product active image"
-        class="product-carousel__main-image w-100 h-100 object-fit-contain"
+        class="product-carousel__main-image w-100 h-100 object-fit-cover"
       />
     } @else {
       <!-- Placeholder -->
@@ -55,7 +55,7 @@
           (click)="selectImage(idx)"
           [attr.aria-label]="'Select image ' + (idx + 1)"
         >
-          <img [src]="image" alt="Product thumbnail" class="w-100 h-100 object-fit-contain" />
+          <img [src]="image" alt="Product thumbnail" class="w-100 h-100 object-fit-cover" />
         </button>
       }
     </div>
diff --git a/src/app/features/store/components/product-carousel/product-carousel.component.scss b/src/app/features/store/components/product-carousel/product-carousel.component.scss
index 9d06cea..24bd878 100644
--- a/src/app/features/store/components/product-carousel/product-carousel.component.scss
+++ b/src/app/features/store/components/product-carousel/product-carousel.component.scss
@@ -12,7 +12,7 @@
   }
 
   &__main-image {
-    padding: 1rem;
+    padding: 0;
     transition: transform 0.3s ease;
   }
 
@@ -65,7 +65,7 @@
     aspect-ratio: 1 / 1;
     background-color: #e0e0e0 !important; /* Matches mock layout */
     border-radius: 4px;
-    padding: 0.25rem;
+    padding: 0;
     transition: opacity 0.2s ease, border-color 0.2s ease;
     border: 3px solid transparent !important;
     cursor: pointer;
@@ -73,7 +73,7 @@
     img {
       width: 100%;
       height: 100%;
-      object-fit: contain;
+      object-fit: cover;
     }
 
     &:hover {
diff --git a/src/app/features/store/pages/product-detail-page/product-detail-page.component.html b/src/app/features/store/pages/product-detail-page/product-detail-page.component.html
index 1e87558..fb96610 100644
--- a/src/app/features/store/pages/product-detail-page/product-detail-page.component.html
+++ b/src/app/features/store/pages/product-detail-page/product-detail-page.component.html
@@ -14,7 +14,7 @@
       <div class="row">
         <!-- Carousel takes ~33.3% width on md/lg screens -->
         <div class="col-12 col-md-4">
-          <app-product-carousel [images]="prod.images" [discount]="20" />
+          <app-product-carousel [images]="carouselImages()" [discount]="20" />
         </div>
       </div>
     } @else {
@@ -24,3 +24,5 @@
     }
   </div>
 </section>
+
+
diff --git a/src/app/features/store/pages/product-detail-page/product-detail-page.component.scss b/src/app/features/store/pages/product-detail-page/product-detail-page.component.scss
index 40a8c17..ef37f26 100644
--- a/src/app/features/store/pages/product-detail-page/product-detail-page.component.scss
+++ b/src/app/features/store/pages/product-detail-page/product-detail-page.component.scss
@@ -1 +1,2 @@
 /* empty */
+
diff --git a/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts b/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts
index 4a2e571..0e05a83 100644
--- a/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts
+++ b/src/app/features/store/pages/product-detail-page/product-detail-page.component.spec.ts
@@ -1,15 +1,16 @@
 import { TestBed } from '@angular/core/testing';
 import { ActivatedRoute, Router } from '@angular/router';
+import { By } from '@angular/platform-browser';
 import { BehaviorSubject, of, throwError } from 'rxjs';
 import { convertToParamMap } from '@angular/router';
 import { beforeEach, describe, expect, it, vi } from 'vitest';
 
-import { Product } from '../../../../core/services/catalog/catalog.interface';
+import { ProductDetail } from '../../../../core/services/catalog/catalog.interface';
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
 import { ProductDetailPageComponent } from './product-detail-page.component';
 
 describe('ProductDetailPageComponent', () => {
-  const mockProduct: Product = {
+  const mockProduct: ProductDetail = {
     id: 1,
     tenant_codigo: 'test',
     category_id: 10,
@@ -20,7 +21,9 @@ describe('ProductDetailPageComponent', () => {
     precio: '24999',
     category: 'Tecnología',
     brand: 'Sony',
-    images: ['https://example.com/image.png']
+    images: ['https://example.com/image.png'],
+    attributes: [],
+    default_variant: null
   };
 
   let paramMapSubject: BehaviorSubject<any>;
@@ -81,4 +84,57 @@ describe('ProductDetailPageComponent', () => {
 
     expect(element.textContent).toContain('No pudimos cargar los detalles del producto.');
   });
+
+  it('should use default variant images if present', async () => {
+    const detailProduct: ProductDetail = {
+      ...mockProduct,
+      images: ['https://example.com/product.png'],
+      default_variant: {
+        variant_id: 123,
+        images: ['https://example.com/variant1.png', 'https://example.com/variant2.png'],
+        attributes: {}
+      }
+    };
+    catalogServiceStub.getProducto.mockReturnValue(of(detailProduct));
+
+    await configureTestingModule();
+    const fixture = TestBed.createComponent(ProductDetailPageComponent);
+    fixture.detectChanges();
+
+    const carousel = fixture.debugElement.query(By.css('app-product-carousel')).componentInstance;
+    expect(carousel.images()).toEqual(['https://example.com/variant1.png', 'https://example.com/variant2.png']);
+  });
+
+  it('should fallback to product images if default variant images are not present', async () => {
+    const detailProduct: ProductDetail = {
+      ...mockProduct,
+      images: ['https://example.com/product.png'],
+      default_variant: null
+    };
+    catalogServiceStub.getProducto.mockReturnValue(of(detailProduct));
+
+    await configureTestingModule();
+    const fixture = TestBed.createComponent(ProductDetailPageComponent);
+    fixture.detectChanges();
+
+    const carousel = fixture.debugElement.query(By.css('app-product-carousel')).componentInstance;
+    expect(carousel.images()).toEqual(['https://example.com/product.png']);
+  });
+
+  it('should fallback to empty array if no images are present at all', async () => {
+    const detailProduct: ProductDetail = {
+      ...mockProduct,
+      images: [],
+      default_variant: null
+    };
+    catalogServiceStub.getProducto.mockReturnValue(of(detailProduct));
+
+    await configureTestingModule();
+    const fixture = TestBed.createComponent(ProductDetailPageComponent);
+    fixture.detectChanges();
+
+    const carousel = fixture.debugElement.query(By.css('app-product-carousel')).componentInstance;
+    expect(carousel.images()).toEqual([]);
+  });
 });
+
diff --git a/src/app/features/store/pages/product-detail-page/product-detail-page.component.ts b/src/app/features/store/pages/product-detail-page/product-detail-page.component.ts
index 6652124..ae51147 100644
--- a/src/app/features/store/pages/product-detail-page/product-detail-page.component.ts
+++ b/src/app/features/store/pages/product-detail-page/product-detail-page.component.ts
@@ -1,10 +1,10 @@
-import { ChangeDetectionStrategy, Component, OnDestroy, OnInit, inject, signal } from '@angular/core';
+import { ChangeDetectionStrategy, Component, OnDestroy, OnInit, computed, inject, signal } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { ActivatedRoute, Router, RouterModule } from '@angular/router';
 import { Subscription } from 'rxjs';
 
 import { CatalogService } from '../../../../core/services/catalog/catalog.service';
-import { Product } from '../../../../core/services/catalog/catalog.interface';
+import { ProductDetail } from '../../../../core/services/catalog/catalog.interface';
 import { ProductCarouselComponent } from '../../components/product-carousel/product-carousel.component';
 
 @Component({
@@ -23,7 +23,18 @@ export class ProductDetailPageComponent implements OnInit, OnDestroy {
   private routeSub: Subscription | null = null;
   private productSub: Subscription | null = null;
 
-  protected readonly product = signal<Product | null>(null);
+  protected readonly product = signal<ProductDetail | null>(null);
+  protected readonly carouselImages = computed(() => {
+    const prod = this.product();
+    if (!prod) return [];
+    if (prod.default_variant?.images && prod.default_variant.images.length > 0) {
+      return prod.default_variant.images;
+    }
+    if (prod.images && prod.images.length > 0) {
+      return prod.images;
+    }
+    return [];
+  });
   protected readonly loading = signal(false);
   protected readonly error = signal<string | null>(null);