feat(checkout): implement checkout page with form validation and routing

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

@@ -15,8 +15,8 @@
         }
       </div>
 
-      <div class="d-flex flex-row align-items-center gap-3 ms-auto flex-nowrap w-100 justify-content-between justify-content-md-end">
+      <div class="d-flex flex-row align-items-center gap-3 ms-auto flex-nowrap flex-grow-1 justify-content-between justify-content-md-end">
-        <div class="input-group store-layout__search flex-grow-1" role="search">
+        <div class="input-group store-layout__search" role="search">
           <label class="visually-hidden" for="store-search-input">Buscar productos</label>
           <input
             id="store-search-input"

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

@@ -1,13 +1,7 @@
 :host {
   display: flex;
   min-height: 100dvh;
-  background:
+  background: #f5f5f5;
-    radial-gradient(
-      circle at top,
-      color-mix(in srgb, white 88%, var(--tenant-primary)) 0%,
-      transparent 58%
-    ),
-    #f6f6f6;
   color: #202020;
 }
 

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

@@ -0,0 +1,137 @@
+<div class="container-xl px-3 px-md-4 py-4">
+<div class="checkout-page">
+
+  <!-- Left: Stepper with steps -->
+  <div class="checkout-page__stepper-col">
+    <app-stepper #stepper>
+
+      <!-- Step 1: Datos -->
+      <app-step label="Datos" [isValid]="isStep1Valid()">
+        <form
+          class="checkout-form"
+          novalidate
+          [formGroup]="form"
+          (ngSubmit)="onContinue()"
+        >
+          <div class="checkout-form__fields">
+
+            <!-- Nombre y Apellido -->
+            <div class="form-field">
+              <label class="form-field__label" for="checkout-nombre">
+                Nombre y Apellido <span class="form-field__required" aria-hidden="true">*</span>
+              </label>
+              <app-input
+                id="checkout-nombre"
+                type="text"
+                placeholder="Descripción"
+                [value]="form.controls.nombre.value"
+                [invalid]="showControlError('nombre')"
+                (valueChange)="updateField('nombre', $event)"
+              />
+              @if (getControlError('nombre'); as errorMessage) {
+                <small class="form-field__error">{{ errorMessage }}</small>
+              }
+            </div>
+
+            <!-- Email -->
+            <div class="form-field">
+              <label class="form-field__label" for="checkout-email">
+                Email <span class="form-field__required" aria-hidden="true">*</span>
+              </label>
+              <app-input
+                id="checkout-email"
+                type="email"
+                placeholder="Descripción"
+                [value]="form.controls.email.value"
+                [invalid]="showControlError('email')"
+                (valueChange)="updateField('email', $event)"
+              />
+              @if (getControlError('email'); as errorMessage) {
+                <small class="form-field__error">{{ errorMessage }}</small>
+              }
+            </div>
+
+            <!-- DNI -->
+            <div class="form-field">
+              <label class="form-field__label" for="checkout-dni">
+                DNI <span class="form-field__required" aria-hidden="true">*</span>
+              </label>
+              <app-input
+                id="checkout-dni"
+                type="text"
+                placeholder="Descripción"
+                [value]="form.controls.dni.value"
+                [invalid]="showControlError('dni')"
+                (valueChange)="updateField('dni', $event)"
+              />
+              @if (getControlError('dni'); as errorMessage) {
+                <small class="form-field__error">{{ errorMessage }}</small>
+              }
+            </div>
+
+            <!-- Teléfono -->
+            <div class="form-field">
+              <label class="form-field__label" for="checkout-telefono">
+                Teléfono <span class="form-field__required" aria-hidden="true">*</span>
+              </label>
+              <app-input
+                id="checkout-telefono"
+                type="text"
+                placeholder="Descripción"
+                [value]="form.controls.telefono.value"
+                [invalid]="showControlError('telefono')"
+                (valueChange)="updateField('telefono', $event)"
+              />
+              @if (getControlError('telefono'); as errorMessage) {
+                <small class="form-field__error">{{ errorMessage }}</small>
+              }
+            </div>
+
+          </div>
+
+          <!-- Actions -->
+          <div class="checkout-form__actions">
+            <app-button
+              type="button"
+              variant="cancel"
+              hostClass="checkout-form__action-btn"
+              buttonClass="w-100"
+              (click)="onCancel()"
+            >
+              Cancelar
+            </app-button>
+            <app-button
+              type="submit"
+              hostClass="checkout-form__action-btn"
+              buttonClass="w-100"
+            >
+              Continuar
+            </app-button>
+          </div>
+
+        </form>
+      </app-step>
+
+      <!-- Step 2: Pago (placeholder) -->
+      <app-step label="Pago">
+        <div class="checkout-payment-placeholder">
+          <p>Próximamente: sección de pago.</p>
+        </div>
+      </app-step>
+
+    </app-stepper>
+  </div>
+
+  <!-- Right: Cart detail -->
+  <div class="checkout-page__cart-col">
+    <app-cart
+      [items]="mappedCartItems()"
+      [subtotal]="cartSubtotal()"
+      [discount]="cartDiscount()"
+      [total]="cartTotal()"
+      backgroundColor="transparent"
+    />
+  </div>
+
+</div>
+</div>

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

@@ -0,0 +1,86 @@
+.checkout-page {
+  display: grid;
+  grid-template-columns: 1fr 420px;
+  gap: 2rem;
+  align-items: start;
+  padding: 2rem 0;
+
+  @media (max-width: 900px) {
+    grid-template-columns: 1fr;
+  }
+
+  // ── Left column ──────────────────────────────────────────────────
+  &__stepper-col {
+    border-radius: 4px;
+    min-height: 420px;
+  }
+
+  // ── Right column ─────────────────────────────────────────────────
+  &__cart-col {
+    border: 1px solid #ececec;
+    border-radius: 4px;
+    padding: 1.25rem 1.5rem;
+    max-height: 80vh;
+    overflow: hidden;
+    display: flex;
+    flex-direction: column;
+  }
+}
+
+// ── Form ────────────────────────────────────────────────────────────
+.checkout-form {
+  display: flex;
+  flex-direction: column;
+  gap: 1.5rem;
+
+  &__fields {
+    display: grid;
+    gap: 1.25rem;
+  }
+
+  &__actions {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 1rem;
+    margin-top: 0.5rem;
+  }
+
+  &__action-btn {
+    display: block;
+    width: 100%;
+  }
+}
+
+// ── Field label & error ──────────────────────────────────────────────
+.form-field {
+  display: grid;
+  gap: 0.35rem;
+
+  &__label {
+    font-size: 0.8rem;
+    font-weight: 600;
+    color: var(--bs-secondary, #6c757d);
+    text-transform: none;
+    letter-spacing: 0;
+  }
+
+  &__required {
+    color: var(--bs-danger, #dc3545);
+    margin-left: 2px;
+  }
+
+  &__error {
+    font-size: 0.75rem;
+    color: var(--bs-danger, #dc3545);
+  }
+}
+
+// ── Payment placeholder ──────────────────────────────────────────────
+.checkout-payment-placeholder {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 3rem 1rem;
+  color: var(--bs-secondary, #6c757d);
+  font-size: 0.9rem;
+}

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

@@ -0,0 +1,117 @@
+import { ChangeDetectionStrategy, Component, computed, inject, ViewChild } from '@angular/core';
+import { FormBuilder, ReactiveFormsModule, Validators } from '@angular/forms';
+import { Router } from '@angular/router';
+
+import { CartService } from '../../../../core/services/cart/cart.service';
+import { CartItem } from '../../../../core/services/cart/cart.interface';
+import { CartComponent, CartItemMock } from '../../../../shared/components/cart/cart.component';
+import { StepperComponent } from '../../../../shared/components/stepper/stepper.component';
+import { StepComponent } from '../../../../shared/components/stepper/step.component';
+import { InputComponent } from '../../../../shared/components/input/input.component';
+import { ButtonComponent } from '../../../../shared/components/button/button.component';
+
+@Component({
+  selector: 'app-checkout-page',
+  standalone: true,
+  imports: [
+    ReactiveFormsModule,
+    CartComponent,
+    StepperComponent,
+    StepComponent,
+    InputComponent,
+    ButtonComponent
+  ],
+  templateUrl: './checkout-page.component.html',
+  styleUrl: './checkout-page.component.scss',
+  changeDetection: ChangeDetectionStrategy.OnPush
+})
+export class CheckoutPageComponent {
+  private readonly formBuilder = inject(FormBuilder);
+  private readonly cartService = inject(CartService);
+  private readonly router = inject(Router);
+
+  @ViewChild(StepperComponent) stepper!: StepperComponent;
+
+  protected readonly form = this.formBuilder.nonNullable.group({
+    nombre: ['', [Validators.required]],
+    email: ['', [Validators.required, Validators.email]],
+    dni: ['', [Validators.required]],
+    telefono: ['', [Validators.required]]
+  });
+
+  protected readonly cartSubtotal = computed(() => {
+    const cart = this.cartService.cart();
+    return cart ? parseFloat(cart.subtotal) : 0;
+  });
+
+  protected readonly cartDiscount = computed(() => 0);
+
+  protected readonly cartTotal = computed(() => this.cartSubtotal() - this.cartDiscount());
+
+  protected readonly mappedCartItems = computed<CartItemMock[]>(() => {
+    const cart = this.cartService.cart();
+    if (!cart || !cart.items) return [];
+    return cart.items.map((item) => this.mapCartItemToMock(item));
+  });
+
+  protected readonly isStep1Valid = computed(() => this.form.valid);
+
+  private mapCartItemToMock(item: CartItem): CartItemMock {
+    const fullName = item.product?.nombre ?? '';
+    let product = fullName;
+    let attributes: { label: string; value: string }[] = [];
+
+    const match = fullName.match(/^(.*?)\s*\((.*?)\)$/);
+    if (match) {
+      product = match[1];
+      const attributesString = match[2];
+      attributes = attributesString.split(',').map((attr) => {
+        const parts = attr.split(':');
+        if (parts.length === 2) {
+          return { label: parts[0].trim(), value: parts[1].trim() };
+        }
+        return { label: '', value: attr.trim() };
+      });
+    }
+
+    return {
+      productVariantId: item.product_variant_id,
+      imageUrl: item.product?.imagen ?? null,
+      product,
+      originalPrice: null,
+      discountedPrice: parseFloat(item.precio_unitario),
+      discountPercentage: null,
+      attributes,
+      quantity: item.cantidad
+    };
+  }
+
+  protected updateField(field: keyof typeof this.form.controls, value: string | number): void {
+    this.form.controls[field].setValue(String(value));
+  }
+
+  protected showControlError(controlName: keyof typeof this.form.controls): boolean {
+    const control = this.form.controls[controlName];
+    return control.invalid && control.touched;
+  }
+
+  protected getControlError(controlName: keyof typeof this.form.controls): string | null {
+    const control = this.form.controls[controlName];
+    if (!this.showControlError(controlName)) return null;
+    if (control.hasError('required')) return 'Este campo es obligatorio.';
+    if (control.hasError('email')) return 'Ingresá un email válido.';
+    return 'El valor ingresado no es válido.';
+  }
+
+  protected onContinue(): void {
+    if (this.form.invalid) {
+      this.form.markAllAsTouched();
+      return;
+    }
+    this.stepper.next();
+  }
+
+  protected onCancel(): void {
+    void this.router.navigate(['/']);
+  }
+}

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

@@ -44,6 +44,13 @@ export const routes: Routes = [
           import('./pages/product-detail-page/product-detail-page.component').then(
             (m) => m.ProductDetailPageComponent
           )
+      },
+      {
+        path: 'checkout',
+        loadComponent: () =>
+          import('./pages/checkout-page/checkout-page.component').then(
+            (m) => m.CheckoutPageComponent
+          )
       }
     ]
   }