feat(carousel): add size probe for responsive layout and optimize item width calculation

Reviewed-on: https://gitea.quo.ar/tbianchini/shopit-front/pulls/8

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

@@ -31,7 +31,13 @@
 
       <div class="immersive-header__actions">
         @if (displaySearchBar()) {
-          <form class="immersive-header__search" role="search" (submit)="submitSearch($event)">
+          <form
+            id="immersive-search"
+            class="immersive-header__search"
+            [class.immersive-header__search--open]="isSearchOpen()"
+            role="search"
+            (submit)="submitSearch($event)"
+          >
             <label class="visually-hidden" for="immersive-search-input">Buscar productos</label>
             <app-input
               id="immersive-search-input"
@@ -62,6 +68,20 @@
           }
         }
 
+        @if (!showHero() && displaySearchBar()) {
+          <button
+            #searchToggle
+            type="button"
+            class="immersive-header__search-toggle"
+            aria-label="Buscar productos"
+            aria-controls="immersive-search"
+            [attr.aria-expanded]="isSearchOpen()"
+            (click)="toggleSearch()"
+          >
+            <i class="fa-solid fa-magnifying-glass" aria-hidden="true"></i>
+          </button>
+        }
+
         @if (displayCart()) {
           <app-cart-icon
             [quantity]="cartDisabled() ? null : cartQuantity()"
@@ -81,13 +101,19 @@
             [ariaExpanded]="isUserDropdownOpen()"
             (clicked)="toggleUserDropdown()"
           />
-          @if (isUserDropdownOpen()) {
+          @if (isUserDropdownOpen() && isAuthenticated()) {
             <app-user-dropdown
               id="immersive-user-dropdown"
               [user]="user()"
               [accountNavigationMenus]="accountNavigationMenus()"
               (logoutClick)="onLogoutClick()"
             />
+          } @else if (isUserDropdownOpen()) {
+            <div id="immersive-user-dropdown" class="immersive-header__guest-menu">
+              <button type="button" (click)="isUserDropdownOpen.set(false); loginClick.emit()">
+                Iniciar sesión
+              </button>
+            </div>
           }
         </div>
       </div>
@@ -119,5 +145,7 @@
         />
       }
     }
+
+    <ng-content />
   </div>
 </header>

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

@@ -7,7 +7,6 @@
   display: grid;
   grid-template-columns: minmax(0, 1fr);
   isolation: isolate;
-  min-height: 640px;
   color: #fff;
   background: #f5f5f5;
 }
@@ -18,7 +17,7 @@
   z-index: 1;
   min-width: 0;
   padding-top: clamp(1.75rem, 4vw, 2.5rem);
-  padding-bottom: 0.5rem;
+  padding-bottom: clamp(1rem, 2vw, 1.5rem);
 }
 
 .immersive-header__backdrop {
@@ -136,11 +135,13 @@
 .immersive-header__title {
   margin: -0.15rem 0 0;
   font-size: 140px;
-  line-height: 1.05;
+  line-height: 0.7;
 }
 .immersive-header__description {
-  margin: 1.15rem 0 0;
-  font-size: clamp(0.75rem, 1.4vw, 0.95rem);
+  margin: 30px 0 0;
+  font-family: 'Gotham Book', sans-serif;
+  font-size: 18px;
+  font-weight: 300;
   text-shadow: 0 1px 5px rgba(0, 0, 0, 0.6);
 }
 .immersive-header__timer {
@@ -158,10 +159,86 @@
 }
 
 .immersive-header--compact {
-  min-height: 0;
-  padding-bottom: 1.5rem;
+  min-height: 115px;
   color: #666666;
   background: transparent;
+
+  .immersive-header__content {
+    padding: 35px 0 36px;
+  }
+
+  .immersive-header__nav {
+    flex-wrap: nowrap;
+    gap: 0.75rem;
+    min-height: 44px;
+  }
+
+  .immersive-header__brand img {
+    width: clamp(92px, 24vw, 145px);
+  }
+
+  .immersive-header__actions {
+    flex: 0 1 auto;
+    gap: 0.375rem;
+  }
+}
+
+.immersive-header__search-toggle {
+  display: none;
+  flex: none;
+  align-items: center;
+  justify-content: center;
+  width: 32px;
+  height: 44px;
+  padding: 0;
+  border: 0;
+  border-radius: 4px;
+  background: transparent;
+  color: #888;
+  font-size: 20px;
+
+  &:focus-visible {
+    outline: 2px solid var(--tenant-primary);
+    outline-offset: 2px;
+  }
+}
+
+.immersive-header__guest-menu {
+  position: absolute;
+  top: calc(100% + 0.5rem);
+  right: 0;
+  min-width: 180px;
+  padding: 0.5rem;
+  border-radius: 6px;
+  background: #fff;
+  box-shadow: 0 4px 16px #0002;
+
+  button {
+    width: 100%;
+    padding: 0.75rem;
+    border: 0;
+    background: transparent;
+    color: #666;
+    text-align: left;
+  }
+}
+
+:host ::ng-deep .immersive-header--compact {
+  .immersive-header__tickets {
+    flex: none;
+    width: auto;
+
+    .btn {
+      min-width: 120px;
+      white-space: nowrap;
+    }
+  }
+
+  .immersive-header__account .icon-btn {
+    width: 32px;
+    height: 44px;
+    color: #888;
+  }
 }
 .immersive-header--compact .immersive-header__backdrop {
   display: none;
@@ -169,7 +246,18 @@
 
 :host ::ng-deep .immersive-header--compact .immersive-header__actions .icon-btn,
 :host ::ng-deep .immersive-header--compact .immersive-header__actions .cart-icon {
-  color: #666666;
+  color: #888;
+}
+
+@media (max-width: 359.98px) {
+  .immersive-header--compact .immersive-header__nav {
+    padding-inline: 1rem !important;
+    gap: 0.375rem;
+  }
+
+  .immersive-header--compact .immersive-header__actions {
+    gap: 0.125rem;
+  }
 }
 
 @media (max-width: 600px) {
@@ -196,6 +284,34 @@
 }
 
 @media (max-width: 767.98px) {
+  .immersive-header--compact {
+    .immersive-header__search {
+      position: absolute;
+      top: calc(100% + 0.5rem);
+      right: 8vw;
+      display: none;
+      width: min(320px, 84vw);
+      padding: 0.75rem;
+      border-radius: 6px;
+      background: #f5f5f5;
+      box-shadow: 0 4px 16px #0002;
+    }
+
+    .immersive-header__search--open {
+      display: block;
+    }
+
+    .immersive-header__search-error {
+      position: static;
+      display: block;
+      margin-top: 0.25rem;
+    }
+
+    .immersive-header__search-toggle {
+      display: inline-flex;
+    }
+  }
+
   .immersive-header:not(.immersive-header--compact) {
     min-height: 0;
 
@@ -203,7 +319,8 @@
       display: grid;
       grid-template-columns: minmax(0, 1fr) auto auto;
       align-items: center;
-      padding: 1.25rem 0 0;
+      align-content: start;
+      padding: 1.875rem 0 1.5rem;
     }
 
     // Keep one search form while placing it below the hero copy on mobile.
@@ -236,7 +353,7 @@
 
     .immersive-header__copy {
       grid-area: 3 / 1 / auto / -1;
-      margin: 1rem 0 0;
+      margin: 1.25rem 0 0;
     }
 
     .immersive-header__eyebrow {
@@ -244,18 +361,21 @@
     }
 
     .immersive-header__title {
-      font-size: clamp(42px, 13vw, 64px);
-      line-height: 0.95;
+      font-size: clamp(40px, 12vw, 56px);
+      line-height: 0.7;
     }
 
     .immersive-header__description {
-      margin-top: 2rem;
+      margin-top: 30px;
       font-size: clamp(11px, 3vw, 14px);
+      line-height: 1.5;
+      color: #666;
+      text-shadow: none;
     }
 
     .immersive-header__search {
       grid-area: 4 / 1 / auto / -1;
-      width: 76%;
+      width: 74%;
       max-width: 28rem;
       margin: 0.5rem auto 0;
     }
@@ -264,11 +384,11 @@
       right: auto;
       left: 0;
       width: 100%;
-      color: #fff;
+      color: var(--tenant-danger, #dc3545);
     }
 
     app-continuous-image-carousel {
-      grid-area: 5 / 1 / auto / -1;
+      grid-area: 6 / 1 / auto / -1;
       margin-top: 1.5rem;
       --carousel-card-width: 27vw;
       --carousel-gap: 3.3vw;
@@ -280,6 +400,9 @@
     }
 
     .immersive-header__backdrop {
+      // Keep the fade tied to the hero, independent of the content below it.
+      align-self: start;
+      height: 12.5rem;
       // Fade the entire layer so its dark base cannot leave a subpixel seam.
       mask-image: linear-gradient(#000 calc(100% - 8px), transparent 100%);
     }
@@ -287,10 +410,10 @@
     .immersive-header__backdrop::after {
       background: linear-gradient(
         180deg,
-        rgba(0, 0, 0, 0.45) 0%,
-        rgba(0, 0, 0, 0.15) 55%,
-        rgba(245, 245, 245, 0.55) 75%,
-        #f5f5f5 95%,
+        rgba(0, 0, 0, 0.25) 0%,
+        rgba(245, 245, 245, 0.1) 30%,
+        rgba(245, 245, 245, 0.65) 65%,
+        #f5f5f5 98%,
         #f5f5f5 100%
       );
     }
@@ -300,10 +423,10 @@
     .immersive-header__search .form-control {
       min-height: 36px;
       padding: 0.25rem 2.5rem 0.25rem 0.75rem;
-      border: 1px solid rgba(255, 255, 255, 0.85);
+      border: 1px solid #888;
       border-radius: 3px;
       background: transparent;
-      color: #fff;
+      color: #666;
       font-size: 16px;
 
       &::placeholder {
@@ -311,13 +434,13 @@
       }
 
       &:focus-visible {
-        outline: 2px solid #fff;
+        outline: 2px solid #666;
         outline-offset: 2px;
       }
     }
 
     .immersive-header__search .input-search-icon {
-      color: #fff;
+      color: #666;
       right: 0.75rem;
     }
 

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

@@ -7,6 +7,8 @@ import {
   input,
   output,
   signal,
+  afterRenderEffect,
+  viewChild,
 } from '@angular/core';
 import { RouterLink } from '@angular/router';
 import { AuthUser } from '../../../services/auth/auth.interfaces';
@@ -59,6 +61,20 @@ export class ImmersiveStoreHeaderComponent {
   protected searchTerm = '';
   protected readonly showSearchError = signal(false);
   protected readonly isUserDropdownOpen = signal(false);
+  protected readonly isSearchOpen = signal(false);
+  private readonly searchInput = viewChild(InputComponent);
+  private readonly searchToggle = viewChild<ElementRef<HTMLButtonElement>>('searchToggle');
+
+  constructor() {
+    afterRenderEffect(() => {
+      if (this.isSearchOpen()) this.searchInput()?.focus();
+    });
+  }
+
+  protected toggleSearch(): void {
+    this.isUserDropdownOpen.set(false);
+    this.isSearchOpen.update((open) => !open);
+  }
   protected readonly checkoutRemainingTime = computed(() => {
     const seconds = this.checkoutRemainingSeconds();
     if (seconds === null) return null;
@@ -76,11 +92,13 @@ export class ImmersiveStoreHeaderComponent {
       return;
     }
     this.showSearchError.set(false);
+    this.isSearchOpen.set(false);
     this.searchSubmit.emit(term);
   }
 
   protected toggleUserDropdown(): void {
-    if (!this.isAuthenticated()) {
+    this.isSearchOpen.set(false);
+    if (this.showHero() && !this.isAuthenticated()) {
       this.loginClick.emit();
       return;
     }
@@ -100,11 +118,14 @@ export class ImmersiveStoreHeaderComponent {
   protected onDocumentClick(event: MouseEvent): void {
     if (event.target instanceof Node && !this.host.nativeElement.contains(event.target)) {
       this.isUserDropdownOpen.set(false);
+      this.isSearchOpen.set(false);
     }
   }
 
   @HostListener('document:keydown.escape')
   protected onEscapeKey(): void {
+    if (this.isSearchOpen()) this.searchToggle()?.nativeElement.focus();
+    this.isSearchOpen.set(false);
     this.isUserDropdownOpen.set(false);
   }
 }

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

@@ -6,10 +6,6 @@
   background-size: cover;
 }
 
-.store-layout__header-main {
-  border-bottom: 1px solid var(--border-color);
-}
-
 .store-layout__categories {
   height: 3.5rem;
 }

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

@@ -20,7 +20,17 @@
       (loginClick)="loginClick.emit()"
       (logoutClick)="logoutClick.emit()"
       (searchSubmit)="searchSubmit.emit($event)"
-    />
+    >
+      @if (showHero() && displayCategories() && categories().length) {
+        <nav class="immersive-categories" aria-label="Categorías">
+          <app-horizontal-carousel
+            [items]="categoryItems()"
+            ariaLabel="Categorías"
+            (itemSelect)="onCategoryItemSelect($event)"
+          />
+        </nav>
+      }
+    </app-immersive-store-header>
   }
   @default {
     <ng-container *ngTemplateOutlet="standardHeader" />
@@ -50,13 +60,3 @@
     (categorySelect)="categorySelect.emit($event)"
   />
 </ng-template>
-
-@if (headerType() === 'immersive' && displayCategories() && categories().length) {
-  <nav class="immersive-categories" aria-label="Categor<6F>as">
-    <app-horizontal-carousel
-      [items]="categoryItems()"
-      ariaLabel="Categor<6F>as"
-      (itemSelect)="onCategoryItemSelect($event)"
-    />
-  </nav>
-}

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

@@ -8,45 +8,43 @@ app-immersive-store-header {
 }
 
 :host(.immersive-shell--compact) {
+  position: relative;
   background-color: #f5f5f5;
-  background-position: center 42%;
-  background-size: cover;
-}
+  background-image: none !important;
 
-:host(.immersive-shell--compact) .immersive-categories {
-  border: 0;
-  box-shadow: none;
-  background: transparent;
-}
-
-:host(.immersive-shell--compact) .immersive-categories::after {
-  content: '';
-  position: absolute;
-  z-index: 1;
-  right: 0;
-  bottom: -1px;
-  left: 0;
-  height: 2px;
-  background: #f5f5f5;
-  pointer-events: none;
+  &::before {
+    content: '';
+    position: absolute;
+    inset: 0;
+    pointer-events: none;
+    background-image: var(--compact-header-background);
+    background-position: left top, center 42%;
+    background-size: 100% 100%, cover;
+    background-repeat: no-repeat;
+    mask-image: linear-gradient(#000 calc(100% - 12px), transparent calc(100% - 4px));
+  }
 }
 
 .immersive-categories {
   position: relative;
-  z-index: 0;
+  z-index: 1;
   width: 100%;
+  margin-top: clamp(5rem, 11vw, 9rem);
   padding: 0.375rem 1rem;
-  background: #f5f5f5;
+  background: transparent;
   color: #666;
   font-size: 15px;
   font-weight: 700;
-  --horizontal-carousel-gap: clamp(1rem, 3vw, 2.5rem);
+  --horizontal-carousel-gap: 90px;
   --horizontal-carousel-text-transform: uppercase;
 }
 
 @media (max-width: 767.98px) {
   .immersive-categories {
-    padding: 1rem 0.25rem 0;
+    grid-area: 5 / 1 / auto / -1;
+    min-width: 0;
+    margin-top: 1.5rem;
+    padding: 0 1rem;
     font-size: clamp(10px, 2.8vw, 12px);
     --horizontal-carousel-visible-items: 3;
     --horizontal-carousel-gap: 0.5rem;

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

@@ -24,7 +24,8 @@ export type StoreHeaderType = 'standard' | 'immersive';
   styleUrl: './store-header.component.scss',
   host: {
     '[class.immersive-shell--compact]': 'isCompactImmersive()',
-    '[style.background-image]': 'compactBackground()',
+    '[style.background-image]': 'null',
+    '[style.--compact-header-background]': 'compactBackground()',
   },
 })
 export class StoreHeaderComponent {
@@ -41,7 +42,7 @@ export class StoreHeaderComponent {
     if (!this.isCompactImmersive()) return null;
 
     const gradient =
-      'linear-gradient(180deg, rgba(245, 245, 245, 0.72) 0%, rgba(245, 245, 245, 0.88) 58%, #f5f5f5 100%)';
+      'linear-gradient(180deg, rgba(245, 245, 245, 0.72) 0%, rgba(245, 245, 245, 0.88) 58%, #f5f5f5 calc(100% - 4px), #f5f5f5 100%)';
     const image = this.backgroundImageUrl();
     return image ? `${gradient}, url(${JSON.stringify(image)})` : gradient;
   });

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

@@ -332,7 +332,7 @@ describe('StoreLayoutComponent', () => {
     expect(element.querySelector('[data-testid="store-header-tickets"]')).not.toBeNull();
   });
 
-  it('shows immersive categories below the header and navigates on selection', () => {
+  it('shows immersive categories inside the header and navigates on selection', () => {
     tenantState.set({
       ...tenant,
       header_type: 'immersive',
@@ -362,7 +362,7 @@ describe('StoreLayoutComponent', () => {
 
     expect(header).not.toBeNull();
     expect(categories).not.toBeNull();
-    expect(header?.contains(categories)).toBe(false);
+    expect(header?.contains(categories)).toBe(true);
     expect(categoryButton?.textContent?.trim()).toBe('MÚSICA');
 
     const navigate = vi.spyOn(TestBed.inject(Router), 'navigate');

src/app/features/store/components/product-carousel/product-carousel.component.html

@@ -62,7 +62,13 @@
           (click)="selectImage(idx)"
           [attr.aria-label]="'Select image ' + (idx + 1)"
         >
-          <img [src]="image" alt="Product thumbnail" class="w-100 h-100 object-fit-cover" />
+          <img
+            [src]="image"
+            alt="Product thumbnail"
+            loading="lazy"
+            decoding="async"
+            class="w-100 h-100 object-fit-cover"
+          />
         </button>
       }
     </div>

src/app/features/store/pages/event-detail-page/event-detail-page.component.html

@@ -1,6 +1,6 @@
 @if (event(); as item) {
-  <div class="event-detail row gx-sm-4 gx-lg-5">
-    <aside class="event-detail__sidebar col-12 col-sm-4">
+  <div class="event-detail">
+    <aside class="event-detail__sidebar">
       <div class="event-detail__image" [class.event-detail__image--placeholder]="!item.image">
         @if (item.image) {
           <img [src]="item.image" [alt]="item.title" />
@@ -12,37 +12,9 @@
       @if (item.starts_at) {
         <app-counter-to [startsAt]="item.starts_at" />
       }
-
-      @if (item.description) {
-        <section class="event-detail__description" aria-labelledby="event-description-title">
-          <h2 id="event-description-title">Descripción</h2>
-          <p>{{ item.description }}</p>
-        </section>
-      }
-
-      @if (item.social_media?.length) {
-        <section class="event-detail__social" aria-labelledby="event-social-title">
-          <h2 id="event-social-title">Información</h2>
-          @for (social of item.social_media; track social.code) {
-            <a [href]="social.url" target="_blank" rel="noopener noreferrer">
-              <i [class]="socialIcon(social.code)" aria-hidden="true"></i>
-              <span>{{ socialLabel(social.code) }}</span>
-            </a>
-          }
-        </section>
-      }
-
-      @if (mapLocations().length) {
-        <app-location-map
-          class="event-detail__map"
-          [locations]="mapLocations()"
-          ariaLabel="Ubicación del evento"
-          mapStyle="standard"
-        />
-      }
     </aside>
 
-    <main class="event-detail__main col-12 col-sm-8">
+    <main class="event-detail__main">
       <header class="event-detail__header">
         <h1>{{ item.title }}</h1>
         @if (item.subtitle) { <p class="event-detail__subtitle">{{ item.subtitle }}</p> }
@@ -105,6 +77,36 @@
         }
       </section>
     </main>
+
+    <aside class="event-detail__details">
+      @if (item.description) {
+        <section class="event-detail__description" aria-labelledby="event-description-title">
+          <h2 id="event-description-title">Descripción</h2>
+          <p>{{ item.description }}</p>
+        </section>
+      }
+
+      @if (item.social_media?.length) {
+        <section class="event-detail__social" aria-labelledby="event-social-title">
+          <h2 id="event-social-title">Información</h2>
+          @for (social of item.social_media; track social.code) {
+            <a [href]="social.url" target="_blank" rel="noopener noreferrer">
+              <i [class]="socialIcon(social.code)" aria-hidden="true"></i>
+              <span>{{ socialLabel(social.code) }}</span>
+            </a>
+          }
+        </section>
+      }
+
+      @if (mapLocations().length) {
+        <app-location-map
+          class="event-detail__map"
+          [locations]="mapLocations()"
+          ariaLabel="Ubicación del evento"
+          mapStyle="standard"
+        />
+      }
+    </aside>
   </div>
 } @else if (!loading()) {
   <p role="alert">No encontramos este evento.</p>

src/app/features/store/pages/event-detail-page/event-detail-page.component.scss

@@ -1,6 +1,9 @@
 :host { display: block; color: #666666; }
-.event-detail { margin-bottom: 3rem; }
+.event-detail { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); column-gap: 1.5rem; margin-bottom: 3rem; }
 .event-detail__sidebar, .event-detail__main { min-width: 0; }
+.event-detail__sidebar { grid-column: 1; grid-row: 1; }
+.event-detail__main { grid-column: 2; grid-row: 1 / span 2; }
+.event-detail__details { min-width: 0; grid-column: 1; grid-row: 2; }
 .event-detail__image { background: #e7e8e9; }
 .event-detail__image--placeholder { aspect-ratio: 1.43; display: grid; place-items: center; }
 .event-detail__image img { width: 100%; height: auto; display: block; }
@@ -34,10 +37,40 @@
 .event-detail__buttons { display: flex; justify-content: flex-end; gap: .5rem; margin-top: 1.6rem; }
 .event-detail__buttons app-button { min-width: 0; flex: 0 0 36%; }
 .event-detail__empty { color: #7c8286; font-size: .85rem; }
+@media (min-width: 992px) {
+  .event-detail { column-gap: 3rem; }
+}
 @media (max-width: 575.98px) {
+  .event-detail { grid-template-columns: minmax(0, 1fr); }
+  .event-detail__sidebar, .event-detail__main, .event-detail__details { grid-column: 1; grid-row: auto; }
   .event-detail__main { margin-top: 2rem; }
+  .event-detail__date-select { width: 100%; }
   .event-detail__description, .event-detail__social { margin-top: 1.5rem; }
   .event-detail__header { min-height: 0; margin-bottom: 2rem; }
-  .event-detail__buttons { flex-wrap: wrap; }
-  .event-detail__buttons app-button { flex: 1 1 100%; }
+  .event-detail__header h1 { font-size: 20px; }
+  .event-detail__product-list { gap: 42px; }
+  .event-detail__product {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr) 96px 72px;
+    column-gap: 26px;
+    margin-inline: 0;
+  }
+  .event-detail__product > * { width: auto; margin-top: 0; padding-inline: 0; }
+  .event-detail__product h3 { align-self: center; font-size: 13px; }
+  .event-detail__product-action { margin-left: 0 !important; }
+  .event-detail__product-action app-quantity-selector {
+    --quantity-selector-width: 96px;
+    --quantity-selector-height: 32px;
+    --quantity-selector-button-width: 28px;
+    --quantity-selector-button-font-size: 14px;
+    --quantity-selector-value-font-size: 14px;
+  }
+  .event-detail__price { align-self: center; font-size: 14px; }
+  .event-detail__total { margin-top: 44px; padding-top: 25px; font-size: 13px; }
+  .event-detail__total strong { font-size: 20px; }
+  .event-detail__buttons { gap: 10px; margin-top: 44px; }
+  .event-detail__buttons app-button {
+    --app-button-min-height: 50px;
+    flex: 1 1 0;
+  }
 }

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

@@ -23,24 +23,49 @@
   </p>
 } @else {
   @for (group of catalog(); track group.id; let first = $first) {
-    <app-store-section [attr.id]="group.code" [title]="group.title">
-      <app-product-list
-        [layout]="group.layout"
-        [groupLayout]="group.group_layout"
-        [items]="group.items"
-        [loading]="isGroupLoading(group.id)"
-        [loadImages]="!hasMainCarouselImages() || mainCarouselReady()"
-        [prioritizeFirstImage]="first && !hasMainCarouselImages()"
-        [unavailableVariantIds]="unavailableVariantIds()"
-        [savingProductIds]="savingProductIds()"
-        (buy)="onBuyProduct($event)"
-        (addToCart)="onAddToCart($event)"
-        (pageChange)="onPageChange(group.id, $event)"
+    @if (first) {
+      <ng-container
+        [ngTemplateOutlet]="catalogGroup"
+        [ngTemplateOutletContext]="{ $implicit: group, prioritizeFirstImage: true }"
       />
-    </app-store-section>
+    } @else {
+      @defer (on viewport; prefetch on idle) {
+        <ng-container
+          [ngTemplateOutlet]="catalogGroup"
+          [ngTemplateOutletContext]="{ $implicit: group, prioritizeFirstImage: false }"
+        />
+      } @placeholder {
+        <section
+          class="store-home__deferred-group-placeholder"
+          [attr.aria-label]="group.title"
+        ></section>
+      }
+    }
   }
 }
 
+<ng-template
+  #catalogGroup
+  let-group
+  let-prioritizeFirstImage="prioritizeFirstImage"
+>
+  <app-store-section [attr.id]="group.code" [title]="group.title">
+    <app-product-list
+      [layout]="group.layout"
+      [groupLayout]="group.group_layout"
+      [items]="group.items"
+      [loading]="isGroupLoading(group.id)"
+      [loadImages]="!hasMainCarouselImages() || mainCarouselReady()"
+      [prioritizeFirstImage]="prioritizeFirstImage && !hasMainCarouselImages()"
+      [unavailableVariantIds]="unavailableVariantIds()"
+      [savingProductIds]="savingProductIds()"
+      (buy)="onBuyProduct($event)"
+      (addToCart)="onAddToCart($event)"
+      (pageChange)="onPageChange(group.id, $event)"
+    />
+  </app-store-section>
+</ng-template>
+
 @if (additionalInfo(); as content) {
   <app-store-section class="store-home__additional-info" title="Información adicional">
     <div class="store-home__additional-info-content" [innerHTML]="content"></div>

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

@@ -15,6 +15,13 @@ app-store-section[id] {
   scroll-margin-top: 8rem;
 }
 
+.store-home__deferred-group-placeholder {
+  display: block;
+  min-height: clamp(24rem, 42vw, 34rem);
+  content-visibility: auto;
+  contain-intrinsic-size: auto 30rem;
+}
+
 :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.ts

@@ -8,6 +8,7 @@ import {
   inject,
   signal,
 } from '@angular/core';
+import { NgTemplateOutlet } from '@angular/common';
 import { HttpErrorResponse } from '@angular/common/http';
 import { ActivatedRoute, Router } from '@angular/router';
 import { finalize, Subscription } from 'rxjs';
@@ -44,6 +45,7 @@ import {
     ProductListComponent,
     HeroBannerComponent,
     MainCarouselComponent,
+    NgTemplateOutlet,
   ],
   templateUrl: './store-home-page.component.html',
   styleUrl: './store-home-page.component.scss',

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

@@ -4,12 +4,18 @@
 }
 
 .btn {
-  min-height: 40px;
+  min-height: var(--app-button-min-height, 40px);
   font-weight: 700;
   font-size: 15px;
   width: 100%;
 }
 
+@media (max-width: 767.98px) {
+  .btn {
+    font-size: 11px;
+  }
+}
+
 .btn-primary,
 .btn-secondary,
 .btn-danger {

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

@@ -1,4 +1,10 @@
 <section class="carousel" role="region" [attr.aria-label]="ariaLabel()">
+  <span
+    #sizeProbe
+    class="carousel__size-probe"
+    aria-hidden="true"
+    [style.width]="itemBasis()"
+  ></span>
   <div class="carousel__frame" [class.carousel__frame--with-controls]="hasMultipleItems()">
     <div
       #viewport

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

@@ -4,8 +4,17 @@
 }
 
 .carousel {
+  position: relative;
   width: 100%;
 
+  &__size-probe {
+    position: absolute;
+    height: 0;
+    visibility: hidden;
+    pointer-events: none;
+    contain: strict;
+  }
+
   &__frame {
     position: relative;
     display: grid;

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

@@ -1,6 +1,6 @@
 import { Component, signal, TemplateRef, viewChild } from '@angular/core';
 import { ComponentFixture, TestBed } from '@angular/core/testing';
-import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 import { CarouselComponent, CarouselItemContext } from './carousel.component';
 
 interface TestItem {
@@ -16,7 +16,7 @@ interface TestItem {
     </ng-template>
 
     <app-carousel
-      [items]="items"
+      [items]="items()"
       [itemTemplate]="itemTemplate"
       [scrollStep]="120"
       [gap]="16"
@@ -28,11 +28,11 @@ interface TestItem {
 class TestHostComponent {
   readonly circular = signal(false);
 
-  readonly items: TestItem[] = [
+  readonly items = signal<TestItem[]>([
     { id: 1, label: 'Primero' },
     { id: 2, label: 'Segundo' },
     { id: 3, label: 'Tercero' },
-  ];
+  ]);
 
   readonly carousel = viewChild.required(CarouselComponent<TestItem>);
   readonly itemTemplate =
@@ -41,8 +41,47 @@ class TestHostComponent {
 
 describe('CarouselComponent', () => {
   let fixture: ComponentFixture<TestHostComponent>;
+  let frames: Map<number, FrameRequestCallback>;
+  let resize: () => void;
+  let disconnect: ReturnType<typeof vi.fn>;
+  const flushLayout = () => {
+    const pending = [...frames.values()];
+    frames.clear();
+    pending.forEach((callback) => callback(0));
+    fixture.detectChanges();
+  };
+  const setDimensions = (width: number, basis: number) => {
+    const host = fixture.nativeElement.querySelector('app-carousel');
+    Object.defineProperty(host, 'clientWidth', { configurable: true, value: width });
+    const probe = fixture.nativeElement.querySelector('.carousel__size-probe');
+    probe.getBoundingClientRect = () => ({ width: basis }) as DOMRect;
+  };
 
   beforeEach(async () => {
+    frames = new Map();
+    let frameId = 0;
+    vi.stubGlobal(
+      'requestAnimationFrame',
+      vi.fn((callback: FrameRequestCallback) => {
+        frames.set(++frameId, callback);
+        return frameId;
+      }),
+    );
+    vi.stubGlobal(
+      'cancelAnimationFrame',
+      vi.fn((id: number) => frames.delete(id)),
+    );
+    disconnect = vi.fn();
+    vi.stubGlobal(
+      'ResizeObserver',
+      class {
+        constructor(callback: () => void) {
+          resize = callback;
+        }
+        observe() {}
+        disconnect = disconnect;
+      },
+    );
     await TestBed.configureTestingModule({
       imports: [TestHostComponent],
     }).compileComponents();
@@ -51,6 +90,75 @@ describe('CarouselComponent', () => {
     fixture.detectChanges();
   });
 
+  afterEach(() => {
+    fixture.destroy();
+    vi.unstubAllGlobals();
+  });
+
+  it('agrupa las mediciones y no se realimenta al renderizar o navegar', async () => {
+    fixture.componentInstance.circular.set(true);
+    setDimensions(650, 200);
+    fixture.detectChanges();
+    resize();
+    resize();
+    expect(frames.size).toBe(1);
+    flushLayout();
+    await Promise.resolve();
+    expect(frames.size).toBe(0);
+    const carousel = fixture.componentInstance.carousel();
+    expect(carousel['itemsPerPage']()).toBe(2);
+    carousel.next();
+    fixture.detectChanges();
+    const track = fixture.nativeElement.querySelector('.carousel__track');
+    track.dispatchEvent(new TransitionEvent('transitionend', { propertyName: 'transform' }));
+    fixture.detectChanges();
+    await Promise.resolve();
+    resize(); // Same width, even if the new cards have a different height.
+    expect(frames.size).toBe(0);
+    expect(carousel['currentPage']()).toBe(1);
+    expect(carousel['itemWidth']()).toBe(269);
+  });
+
+  it('recalcula al cambiar el ancho y la base responsive de las tarjetas', () => {
+    setDimensions(650, 200);
+    resize();
+    flushLayout();
+    setDimensions(350, 200);
+    resize();
+    flushLayout();
+    expect(fixture.componentInstance.carousel()['itemsPerPage']()).toBe(1);
+    setDimensions(350, 100);
+    resize();
+    flushLayout();
+    expect(fixture.componentInstance.carousel()['itemsPerPage']()).toBe(2);
+    expect(frames.size).toBe(0);
+  });
+
+  it('actualiza productos y admite una lista vacía sin anchos inválidos', () => {
+    setDimensions(650, 200);
+    flushLayout();
+    fixture.componentInstance.items.set([]);
+    fixture.detectChanges();
+    expect(frames.size).toBe(1);
+    flushLayout();
+    const carousel = fixture.componentInstance.carousel();
+    expect(carousel['itemWidth']()).toBeNull();
+    expect(carousel['hasOverflow']()).toBe(false);
+    fixture.componentInstance.items.set([{ id: 4, label: 'Nuevo' }]);
+    fixture.detectChanges();
+    flushLayout();
+    expect(carousel['itemWidth']()).toBe(650);
+    expect(fixture.nativeElement.querySelectorAll('article')).toHaveLength(1);
+    expect(frames.size).toBe(0);
+  });
+
+  it('cancela mediciones pendientes y desconecta el observador al destruirse', () => {
+    expect(frames.size).toBe(1);
+    fixture.destroy();
+    expect(frames.size).toBe(0);
+    expect(disconnect).toHaveBeenCalledOnce();
+  });
+
   it('renderiza el template provisto para cada elemento', () => {
     const articles = fixture.nativeElement.querySelectorAll('article');
 
@@ -59,6 +167,17 @@ describe('CarouselComponent', () => {
     expect(articles[1].getAttribute('data-index')).toBe('1');
   });
 
+  it('permite inspeccionar las páginas antes de medir el viewport sin generar listas enormes', () => {
+    const carousel = fixture.componentInstance.carousel();
+    fixture.componentInstance.circular.set(true);
+    carousel['itemsPerPage'].set(Number.MAX_SAFE_INTEGER);
+
+    expect(carousel['circularPages']()).toEqual([]);
+    expect(carousel['createPage']('current', 0).items.map((entry) => entry.item.id)).toEqual([
+      1, 2, 3,
+    ]);
+  });
+
   it('expone una región accesible y controles con etiquetas', () => {
     const region = fixture.nativeElement.querySelector('[role="region"]');
     const buttons = fixture.nativeElement.querySelectorAll('button');
@@ -99,7 +218,7 @@ describe('CarouselComponent', () => {
 
   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;
+    const firstItem = fixture.nativeElement.querySelector('.carousel__size-probe') as HTMLElement;
 
     Object.defineProperty(host, 'clientWidth', {
       configurable: true,
@@ -112,7 +231,7 @@ describe('CarouselComponent', () => {
         }) as DOMRect,
     );
 
-    fixture.componentInstance.carousel().ngAfterViewInit();
+    flushLayout();
     fixture.detectChanges();
 
     const frame = fixture.nativeElement.querySelector('.carousel__frame') as HTMLElement;
@@ -128,7 +247,7 @@ describe('CarouselComponent', () => {
     fixture.detectChanges();
 
     const host = fixture.nativeElement.querySelector('app-carousel') as HTMLElement;
-    const firstItem = fixture.nativeElement.querySelector('.carousel__item') as HTMLElement;
+    const firstItem = fixture.nativeElement.querySelector('.carousel__size-probe') as HTMLElement;
 
     Object.defineProperty(host, 'clientWidth', {
       configurable: true,
@@ -141,7 +260,7 @@ describe('CarouselComponent', () => {
         }) as DOMRect,
     );
 
-    fixture.componentInstance.carousel().ngAfterViewInit();
+    flushLayout();
     fixture.detectChanges();
 
     const pages = fixture.nativeElement.querySelectorAll('.carousel__page');

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

@@ -1,5 +1,6 @@
 import {
   AfterViewInit,
+  afterRenderEffect,
   ChangeDetectionStrategy,
   Component,
   DestroyRef,
@@ -10,6 +11,7 @@ import {
   inject,
   input,
   signal,
+  untracked,
   viewChild,
 } from '@angular/core';
 import { isPlatformBrowser, NgTemplateOutlet } from '@angular/common';
@@ -45,12 +47,15 @@ export class CarouselComponent<T> implements AfterViewInit {
   private readonly platformId = inject(PLATFORM_ID);
   private readonly host = inject<ElementRef<HTMLElement>>(ElementRef);
   private readonly viewport = viewChild.required<ElementRef<HTMLElement>>('viewport');
+  private readonly sizeProbe = viewChild.required<ElementRef<HTMLElement>>('sizeProbe');
+  private layoutFrame: number | null = null;
 
   readonly items = input.required<readonly T[]>();
   readonly itemTemplate = input.required<TemplateRef<CarouselItemContext<T>>>();
   readonly trackBy = input<CarouselTrackBy<T>>((index) => index);
   readonly scrollStep = input<number | null>(null);
   readonly gap = input(0);
+  readonly itemBasis = input('16rem');
   readonly circular = input(false);
   readonly ariaLabel = input('Carrusel');
   readonly previousLabel = input('Mostrar elementos anteriores');
@@ -70,6 +75,10 @@ export class CarouselComponent<T> implements AfterViewInit {
   );
   protected readonly isCircularLayout = computed(() => this.circular() && this.pageCount() > 1);
   protected readonly circularPages = computed<CarouselPage<T>[]>(() => {
+    if (!this.isCircularLayout()) {
+      return [];
+    }
+
     const pageCount = this.pageCount();
     const currentPage = this.normalizePage(this.currentPage(), pageCount);
 
@@ -86,27 +95,51 @@ export class CarouselComponent<T> implements AfterViewInit {
     () => !this.hasOverflow() || (!this.circular() && !this.canScrollNext()),
   );
 
+  constructor() {
+    afterRenderEffect(() => {
+      this.items();
+      this.gap();
+      this.circular();
+      this.itemBasis();
+      this.itemTemplate();
+      // Layout outputs must never become dependencies of this effect.
+      untracked(() => this.scheduleLayout());
+    });
+  }
+
+  private scheduleLayout(): void {
+    if (this.destroyRef.destroyed || this.layoutFrame !== null) return;
+    this.layoutFrame = requestAnimationFrame(() => {
+      this.layoutFrame = null;
+      this.refreshLayout();
+    });
+  }
+
   ngAfterViewInit(): void {
     if (!isPlatformBrowser(this.platformId)) {
       return;
     }
 
-    const viewport = this.viewport().nativeElement;
-    this.refreshLayout();
-
+    let previousWidth = -1;
+    let previousBasis = -1;
     const resizeObserver =
-      typeof ResizeObserver === 'undefined' ? null : new ResizeObserver(() => this.refreshLayout());
-    resizeObserver?.observe(this.host.nativeElement);
-
-    const mutationObserver =
-      typeof MutationObserver === 'undefined'
+      typeof ResizeObserver === 'undefined'
         ? null
-        : new MutationObserver(() => this.refreshLayout());
-    mutationObserver?.observe(viewport, { childList: true, subtree: true });
+        : new ResizeObserver(() => {
+            const width = this.host.nativeElement.clientWidth;
+            const basis = this.sizeProbe().nativeElement.getBoundingClientRect().width;
+            // Image loads and page rotation can change height, but not the layout inputs.
+            if (width === previousWidth && basis === previousBasis) return;
+            previousWidth = width;
+            previousBasis = basis;
+            this.scheduleLayout();
+          });
+    resizeObserver?.observe(this.host.nativeElement);
+    resizeObserver?.observe(this.sizeProbe().nativeElement);
 
     this.destroyRef.onDestroy(() => {
       resizeObserver?.disconnect();
-      mutationObserver?.disconnect();
+      if (this.layoutFrame !== null) cancelAnimationFrame(this.layoutFrame);
     });
   }
 
@@ -218,24 +251,32 @@ export class CarouselComponent<T> implements AfterViewInit {
   }
 
   private refreshLayout(): void {
-    const viewport = this.viewport().nativeElement;
-    const firstItem = viewport.querySelector<HTMLElement>('.carousel__item');
+    const itemCount = this.items().length;
     const availableWidth = this.host.nativeElement.clientWidth;
     const availableViewportWidth = Math.max(
       availableWidth - (this.hasMultipleItems() ? CarouselComponent.CONTROL_SLOT_WIDTH * 2 : 0),
       0,
     );
 
-    if (!firstItem || availableViewportWidth <= 0) {
+    if (itemCount === 0) {
+      this.itemsPerPage.set(1);
+      this.currentPage.set(0);
+      this.transitionDirection.set(0);
+      this.itemWidth.set(null);
+      this.hasOverflow.set(false);
+      this.canScrollPrevious.set(false);
+      this.canScrollNext.set(false);
+      return;
+    }
+
+    if (availableViewportWidth <= 0) {
       this.itemWidth.set(null);
       this.refreshNavigation();
       return;
     }
 
-    const assignedWidth = firstItem.style.width;
-    firstItem.style.width = '';
-    const naturalItemWidth = firstItem.getBoundingClientRect().width;
-    firstItem.style.width = assignedWidth;
+    // Measure a stable CSS basis, never a card whose content/width we just changed.
+    const naturalItemWidth = this.sizeProbe().nativeElement.getBoundingClientRect().width;
 
     if (naturalItemWidth <= 0) {
       this.itemWidth.set(null);
@@ -244,9 +285,9 @@ export class CarouselComponent<T> implements AfterViewInit {
     }
 
     const gap = this.resolvedGap();
-    const fittingItems = Math.max(
-      1,
-      Math.floor((availableViewportWidth + gap) / (naturalItemWidth + gap)),
+    const fittingItems = Math.min(
+      itemCount,
+      Math.max(1, Math.floor((availableViewportWidth + gap) / (naturalItemWidth + gap))),
     );
     const visibleItems = Math.min(fittingItems, this.items().length);
     const distributedItemWidth =
@@ -258,7 +299,12 @@ export class CarouselComponent<T> implements AfterViewInit {
       this.transitionDirection.set(0);
     }
 
-    this.itemWidth.set(distributedItemWidth);
+    if (this.itemWidth() !== distributedItemWidth) this.itemWidth.set(distributedItemWidth);
+    const normalizedPage = this.normalizePage(this.currentPage(), this.pageCount());
+    if (normalizedPage !== this.currentPage()) {
+      this.currentPage.set(normalizedPage);
+      this.transitionDirection.set(0);
+    }
     if (this.circular()) {
       const hasOverflow = this.items().length > fittingItems;
       this.hasOverflow.set(hasOverflow);
@@ -270,14 +316,20 @@ export class CarouselComponent<T> implements AfterViewInit {
   }
 
   private createPage(slot: CarouselPage<T>['slot'], page: number): CarouselPage<T> {
+    const sourceItems = this.items();
+    // Layout has not necessarily been measured when a computed value is inspected.
+    const pageSize = Math.min(this.itemsPerPage(), sourceItems.length);
+    if (pageSize === 0) {
+      return { slot, items: [] };
+    }
     const pageCount = this.pageCount();
     const normalizedPage = this.normalizePage(page, pageCount);
-    const start = normalizedPage * this.itemsPerPage();
+    const start = normalizedPage * pageSize;
     const items: CarouselPageItem<T>[] = [];
 
-    for (let offset = 0; offset < this.itemsPerPage(); offset += 1) {
-      const index = (start + offset) % this.items().length;
-      items.push({ item: this.items()[index], index });
+    for (let offset = 0; offset < pageSize; offset += 1) {
+      const index = (start + offset) % sourceItems.length;
+      items.push({ item: sourceItems[index], index });
     }
 
     return { slot, items };

src/app/shared/components/counter-to/counter-to.component.scss

@@ -1,5 +1,5 @@
 :host { display: block; margin-top: 9px; }
-.counter-to { min-height: 30px; padding-block: 12px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; text-align: center; border: 1px solid #d7d9db; border-radius: 3px; }
+.counter-to { min-height: 30px; padding-block: 12px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; text-align: center; border: 1px solid #a0a0a0; border-radius: 3px; }
 .counter-to > div + div { border-left: 1px solid #e6e7e8; }
 .counter-to strong { display: block; color: #666666; font-size: 16px; font-weight: 700; line-height: 1.1; }
 .counter-to small { display: block; margin-top: 1px; color: #666666; font-size: 11px; font-weight: 400; letter-spacing: .02em; }

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

@@ -67,6 +67,9 @@
     [itemTemplate]="productItem"
     [trackBy]="trackProduct"
     [gap]="24"
+    [itemBasis]="
+      effectiveLayout() === 'row' ? 'clamp(18rem, 70vw, 32rem)' : 'clamp(15rem, 30vw, 18rem)'
+    "
     [circular]="true"
     ariaLabel="Productos destacados"
   />

src/app/shared/components/quantity-selector/quantity-selector.component.scss

@@ -4,16 +4,16 @@
 
 .quantity-selector {
   border: 1px solid var(--border-color);
-  width: 78px;
-  height: 40px;
-  min-height: 40px;
+  width: var(--quantity-selector-width, 78px);
+  height: var(--quantity-selector-height, 40px);
+  min-height: var(--quantity-selector-height, 40px);
   background-color: #ffffff;
   box-sizing: border-box;
 
   &__button {
-    width: 24px;
+    width: var(--quantity-selector-button-width, 24px);
     height: 100%;
-    font-size: 20px;
+    font-size: var(--quantity-selector-button-font-size, 20px);
     color: #6f6f6f;
     background-color: #ffffff;
     transition:
@@ -34,7 +34,7 @@
   }
 
   &__value {
-    font-size: 16px;
+    font-size: var(--quantity-selector-value-font-size, 16px);
     color: #6f6f6f;
   }
 

src/app/shared/components/simple-modal/simple-modal.component.scss

@@ -11,6 +11,11 @@
   line-height: 1.5;
 }
 
+h2.simple-modal__content {
+  font-size: 15px;
+  font-weight: bold;
+}
+
 .simple-modal__actions {
   display: flex;
   justify-content: center;

src/app/shared/components/toast-container/toast-container.component.scss

@@ -2,7 +2,7 @@
   z-index: 1500;
   display: flex;
   flex-direction: column;
-  gap: 0.5rem;
+  gap: 0.25rem;
   pointer-events: none;
   width: 90vw;
   max-width: 800px;