changes

src/app/components/back-button/back-button.component.ts

@@ -17,14 +17,16 @@ import { TranslateService } from '../../i18n/translate.service';
   `,
   styles: [`
     .dexar-back-btn {
-      position: fixed;
-      top: 76px;
+      position: sticky;
+      top: 72px;
       left: 20px;
       z-index: 100;
       background: none;
       border: none;
       cursor: pointer;
-      padding: 4px;
+      padding: 8px 4px;
+      margin-bottom: -40px;
+      width: fit-content;
       transition: transform 0.2s ease;
       
       svg path {
@@ -47,7 +49,7 @@ import { TranslateService } from '../../i18n/translate.service';
 
     @media (max-width: 768px) {
       .dexar-back-btn {
-        top: 68px;
+        top: 64px;
         left: 12px;
         
         svg {

src/app/components/header/header.component.html

@@ -29,8 +29,8 @@
       <div class="novo-right">
         <app-language-selector />
         
-        <a [routerLink]="'/cart' | langRoute" routerLinkActive="novo-cart-active" class="novo-cart" (click)="closeMenu()">
-          <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+        <a [routerLink]="'/cart' | langRoute" routerLinkActive="novo-cart-active" class="novo-cart" (click)="closeMenu()" [attr.aria-label]="'header.cart' | translate">
+          <svg width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true">
             <circle cx="9" cy="21" r="1"></circle>
             <circle cx="20" cy="21" r="1"></circle>
             <path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6"></path>
@@ -40,7 +40,7 @@
           }
         </a>
         
-        <button class="menu-toggle" (click)="toggleMenu()" [class.active]="menuOpen">
+        <button class="menu-toggle" (click)="toggleMenu()" [class.active]="menuOpen" [attr.aria-label]="menuOpen ? 'Close menu' : 'Open menu'" [attr.aria-expanded]="menuOpen">
           <span></span>
           <span></span>
           <span></span>
@@ -112,7 +112,7 @@
         </div>
 
         <!-- Mobile Menu Toggle -->
-        <button class="dexar-menu-toggle" (click)="toggleMenu()" [class.active]="menuOpen">
+        <button class="dexar-menu-toggle" (click)="toggleMenu()" [class.active]="menuOpen" [attr.aria-label]="menuOpen ? 'Close menu' : 'Open menu'" [attr.aria-expanded]="menuOpen">
           <span></span>
           <span></span>
           <span></span>

src/app/components/language-selector/language-selector.component.html

@@ -1,5 +1,5 @@
-<div class="language-selector">
-  <button class="language-button" (click)="toggleDropdown()">
+<div class="language-selector" role="listbox">
+  <button class="language-button" (click)="toggleDropdown()" (keydown)="onKeyDown($event)" aria-haspopup="listbox" [attr.aria-expanded]="dropdownOpen">
     <img [src]="languageService.getCurrentLanguage()?.flagSvg" 
          [alt]="languageService.getCurrentLanguage()?.name" 
          class="language-flag">
@@ -13,6 +13,8 @@
     @for (lang of languageService.languages; track lang.code) {
       <button 
         class="language-option" 
+        role="option"
+        [attr.aria-selected]="languageService.currentLanguage() === lang.code"
         [class.active]="languageService.currentLanguage() === lang.code"
         [class.disabled]="!lang.enabled"
         [disabled]="!lang.enabled"

src/app/components/language-selector/language-selector.component.ts

@@ -31,6 +31,15 @@ export class LanguageSelectorComponent {
     this.dropdownOpen = false;
   }
 
+  onKeyDown(event: KeyboardEvent): void {
+    if (event.key === 'Escape') {
+      this.dropdownOpen = false;
+    } else if (event.key === 'Enter' || event.key === ' ') {
+      event.preventDefault();
+      this.toggleDropdown();
+    }
+  }
+
   @HostListener('document:click', ['$event'])
   onClickOutside(event: Event): void {
     if (!this.elementRef.nativeElement.contains(event.target)) {