feat(carousel): adjust item width calculation for better distribution and responsiveness

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

@@ -1,9 +1,5 @@
 <section class="carousel" role="region" [attr.aria-label]="ariaLabel()">
-  <div
-    class="carousel__frame"
-    [class.carousel__frame--with-controls]="hasMultipleItems()"
-    [style.width.px]="frameWidth()"
-  >
+  <div class="carousel__frame" [class.carousel__frame--with-controls]="hasMultipleItems()">
     <div
       #viewport
       class="carousel__viewport"
@@ -29,7 +25,7 @@
               [attr.inert]="page.slot === 'current' ? null : ''"
             >
               @for (entry of page.items; track trackBy()(entry.index, entry.item)) {
-                <div class="carousel__item">
+                <div class="carousel__item" [style.width.px]="itemWidth()">
                   <ng-container
                     [ngTemplateOutlet]="itemTemplate()"
                     [ngTemplateOutletContext]="{ $implicit: entry.item, index: entry.index }"
@@ -42,7 +38,7 @@
       } @else {
         <div class="carousel__linear-track" [style.gap.px]="resolvedGap()">
           @for (item of items(); track trackBy()($index, item); let index = $index) {
-            <div class="carousel__item">
+            <div class="carousel__item" [style.width.px]="itemWidth()">
               <ng-container
                 [ngTemplateOutlet]="itemTemplate()"
                 [ngTemplateOutletContext]="{ $implicit: item, index }"

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

@@ -79,6 +79,10 @@
     flex: 0 0 auto;
     min-width: 0;
     scroll-snap-align: start;
+
+    > * {
+      width: 100%;
+    }
   }
 
   &__control {

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

@@ -97,7 +97,7 @@ describe('CarouselComponent', () => {
     expect(scrollBy).toHaveBeenCalledTimes(2);
   });
 
-  it('ajusta y centra el viewport para mostrar únicamente elementos completos', () => {
+  it('usa todo el ancho y distribuye el espacio sobrante entre elementos completos', () => {
     const host = fixture.nativeElement.querySelector('app-carousel') as HTMLElement;
     const firstItem = fixture.nativeElement.querySelector('.carousel__item') as HTMLElement;
 
@@ -116,8 +116,11 @@ describe('CarouselComponent', () => {
     fixture.detectChanges();
 
     const frame = fixture.nativeElement.querySelector('.carousel__frame') as HTMLElement;
+    const items = fixture.nativeElement.querySelectorAll('.carousel__item');
 
-    expect(frame.style.width).toBe('512px');
+    expect(frame.style.width).toBe('');
+    expect(items[0].style.width).toBe('269px');
+    expect(items[1].style.width).toBe('269px');
   });
 
   it('mantiene preparadas las páginas adyacentes y rota al terminar la transición', () => {

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

@@ -59,18 +59,11 @@ export class CarouselComponent<T> implements AfterViewInit {
   protected readonly canScrollPrevious = signal(false);
   protected readonly canScrollNext = signal(false);
   protected readonly hasOverflow = signal(false);
-  protected readonly viewportWidth = signal<number | null>(null);
+  protected readonly itemWidth = signal<number | null>(null);
   protected readonly itemsPerPage = signal(Number.MAX_SAFE_INTEGER);
   protected readonly currentPage = signal(0);
   protected readonly transitionDirection = signal<-1 | 0 | 1>(0);
   protected readonly hasMultipleItems = computed(() => this.items().length > 1);
-  protected readonly frameWidth = computed(() => {
-    const viewportWidth = this.viewportWidth();
-
-    return viewportWidth === null
-      ? null
-      : viewportWidth + (this.hasMultipleItems() ? CarouselComponent.CONTROL_SLOT_WIDTH * 2 : 0);
-  });
   protected readonly resolvedGap = computed(() => Math.max(this.gap(), 0));
   protected readonly pageCount = computed(() =>
     Math.max(1, Math.ceil(this.items().length / this.itemsPerPage())),
@@ -234,15 +227,18 @@ export class CarouselComponent<T> implements AfterViewInit {
     );
 
     if (!firstItem || availableViewportWidth <= 0) {
-      this.viewportWidth.set(null);
+      this.itemWidth.set(null);
       this.refreshNavigation();
       return;
     }
 
-    const itemWidth = firstItem.getBoundingClientRect().width;
+    const assignedWidth = firstItem.style.width;
+    firstItem.style.width = '';
+    const naturalItemWidth = firstItem.getBoundingClientRect().width;
+    firstItem.style.width = assignedWidth;
 
-    if (itemWidth <= 0) {
-      this.viewportWidth.set(null);
+    if (naturalItemWidth <= 0) {
+      this.itemWidth.set(null);
       this.refreshNavigation();
       return;
     }
@@ -250,10 +246,11 @@ export class CarouselComponent<T> implements AfterViewInit {
     const gap = this.resolvedGap();
     const fittingItems = Math.max(
       1,
-      Math.floor((availableViewportWidth + gap) / (itemWidth + gap)),
+      Math.floor((availableViewportWidth + gap) / (naturalItemWidth + gap)),
     );
     const visibleItems = Math.min(fittingItems, this.items().length);
-    const fittedWidth = visibleItems * itemWidth + Math.max(visibleItems - 1, 0) * gap;
+    const distributedItemWidth =
+      (availableViewportWidth - Math.max(visibleItems - 1, 0) * gap) / visibleItems;
 
     if (this.itemsPerPage() !== fittingItems) {
       this.itemsPerPage.set(fittingItems);
@@ -261,7 +258,7 @@ export class CarouselComponent<T> implements AfterViewInit {
       this.transitionDirection.set(0);
     }
 
-    this.viewportWidth.set(Math.min(Math.ceil(fittedWidth), availableViewportWidth));
+    this.itemWidth.set(distributedItemWidth);
     if (this.circular()) {
       const hasOverflow = this.items().length > fittingItems;
       this.hasOverflow.set(hasOverflow);

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

@@ -34,12 +34,13 @@
     min-width: 0;
 
     &--carousel {
-      width: clamp(15rem, 30vw, 18rem);
+      width: 100%;
+      min-width: clamp(15rem, 30vw, 18rem);
       height: 100%;
     }
 
     &--carousel-row {
-      width: clamp(18rem, 70vw, 32rem);
+      min-width: clamp(18rem, 70vw, 32rem);
     }
   }
 }