src/app/reading/reading.component.html

<div class="reading-container">
  <app-header [title]="'Reading'"></app-header>


  <!-- Background -->
  <img src="assets/images/grammar-bg.png" alt="Background" class="grammar-bg" />

  <!-- Main -->
  <div class="main-container" *ngIf="!showCongrats">
    <!-- INTRO (split left image / right form) -->
    <section class="intro-section split" *ngIf="!content && !hasStarted">
      <div class="split-shell">
        <!-- Left -->
        <div class="split-left">
          <img class="intro-illustration"
               src="assets/images/reading/teacher.png"
               alt="Reading and quiz illustration" />
        </div>

        <!-- Right -->
        <div class="split-right">
          <h1 class="hero-title">Welcome to the Reading Exercise</h1>
          <p class="hero-copy">
            The Reading component is a simple tool that turns any meaningful topic into a short,
            age-appropriate passage. It checks the topic first to avoid nonsense and unsafe inputs,
            then creates clear content at the chosen level (Easy, Medium, or Hard). After reading,
            it generates multiple-choice questions and gives instant feedback. Read-Aloud and A−/A+
            controls support different learning needs. This helps students build comprehension and
            vocabulary, and saves teachers and parents time during practice, homework, and revision.
          </p>

          <!-- Row: Topic -->
          <div class="form-row">
            <label class="row-label">Topic:</label>

            <div class="input-wrap clearable" [class.locked]="!difficulty">
              <span class="icon-search" aria-hidden="true"></span>

              <input type="text"
                     class="has-clear"
                     [(ngModel)]="topic"
                     [placeholder]="difficulty ? 'Enter or select a topic' : 'Select a level first'"
                     [disabled]="!difficulty"
                     (focus)="openSuggestions()"
                     (input)="onTyping()"
                     (keydown)="onKeydown($event)"
                     (blur)="hideSuggestionsWithDelay()"
                     autocomplete="off"
                     aria-autocomplete="list"
                     [attr.aria-expanded]="showSuggestions && !!difficulty"
                     [attr.aria-disabled]="!difficulty" />

              <!-- Clear (×) only when enabled and has text -->
              <button class="clear-btn"
                      *ngIf="difficulty && topic.trim().length"
                      (mousedown)="$event.preventDefault()"
                      (click)="onClearTopic()">
                ×
              </button>

              <!-- Suggestions only after a level is chosen -->
              <div class="suggestion-box" *ngIf="difficulty && showSuggestions">
                <ng-container *ngIf="filteredSuggestions?.length">
                  <span *ngFor="let s of filteredSuggestions; let i = index"
                        (mousedown)="selectSuggestion(s)"
                        [class.active]="i === activeIndex">{{ s }}</span>
                </ng-container>
                <!--
                <ng-template #noMatches>
                  <span (mousedown)="selectSuggestion(topic)">Use “{{ topic }}”</span>
                </ng-template>
                -->
              </div>
            </div>

            <!-- Tiny helper note shown only when level not chosen -->
            <div class="field-hint" *ngIf="!difficulty">
              <span class="lock-icon" aria-hidden="true"></span>
              Please select a level to enable topic suggestions.
            </div>
          </div>

          <!-- Row: Level + Generate -->
          <div class="form-row">
            <label class="row-label">Select Level:</label>

            <div class="select-wrap">
              <span class="icon-level" aria-hidden="true"></span>
              <select [(ngModel)]="difficulty" (ngModelChange)="onDifficultyChange($event)" required>
                <option [ngValue]="'easy'">Easy</option>
                <option [ngValue]="'medium'">Medium</option>
                <option [ngValue]="'hard'">Hard</option>
              </select>
              <span class="badge" *ngIf="difficulty" [attr.data-level]="difficulty">
                {{ difficulty | titlecase }}
              </span>
            </div>

            <button class="btn-get"
                    (click)="generateContent()
              "
                    [disabled]="!topic.trim() || !difficulty.trim() || isGenerateDisabled">
              Generate Passage
            </button>
          </div>
        </div>
      </div>

      <!-- Centered loader (uses your .loader-overlay/.loader CSS) -->
      <div class="loader-overlay" *ngIf="isGeneratingContent" role="status" aria-live="polite">
        <div class="loader">Loading</div>
      </div>

      <!-- Error popup (uses existing CSS .popup-overlay/.popup-content) -->
      <div class="popup-overlay" *ngIf="showPopup">
        <div class="popup-content">

          <p>
            {{ errorMessage || 'We could not create the passage right now. Please try again.' }}
          </p>
          <button class="close-btn1" (click)="closeErrorPopup()">Close</button>
        </div>
      </div>
    </section>

    <!-- READING CARD -->
    <div *ngIf="content && !hasStarted" class="reading-card">
      <!-- Header -->
      <div class="reading-head">
        <button class="icon-btn back" (click)="goToIntroSection()" aria-label="Back">
          <img src="assets/images/reading/back.png" alt="" class="icon-img" />
        </button>

        <h2 class="reading-title">Let’s Start Reading!</h2>

        <!-- Actions: A− A+ Read/Pause Stop -->
        <div class="head-actions">
          <button class="icon-btn" (click)="decreaseFont()" aria-label="Decrease font">A−</button>
          <button class="icon-btn" (click)="increaseFont()" aria-label="Increase font">A+</button>

          <button class="icon-btn"
                  [class.active]="isReading || ttsPaused"
                  (click)="toggleReadAloud()"
                  [attr.aria-pressed]="isReading || ttsPaused"
                  aria-label="Read aloud">
            {{ isReading ? '⏸' : '🔊' }}
          </button>

          <!--
          <button class="icon-btn danger" (click)="stopReadAloud()" aria-label="Stop reading">■</button>
          -->
        </div>
      </div>

      <!-- Meta -->
      <div class="reading-meta">
        <span class="chip chip-topic" *ngIf="normalizedTopic || topic">📚 {{ normalizedTopic || topic }}</span>
        <span class="chip chip-level" [attr.data-level]="difficulty">
          {{
          difficulty | titlecase
          }}
        </span>
      </div>

      <!-- Passage -->
      <div class="passage-shell">
        <div class="passage-text" [innerHTML]="transformContent(content)"></div>
      </div>

      <!-- Footer -->
      <div class="reading-actions">
        <button class="btn-primary"
                (click)="stopReadAloud(); generateQuestions()"
                [disabled]="isGenerateQuestionDisabled">
          Generate Questions
        </button>

        <!-- Centered loader while generating questions -->
        <div class="loader-overlay" *ngIf="loadingQuestions" aria-live="polite" aria-busy="true">
          <span class="loader">Loading</span>
        </div>

        <button class="btn-danger" (click)="stopReadAloud(); resetAll()">Reset</button>
      </div>
    </div>

    <!-- QUESTIONS -->
    <!-- MCQ CARD -->
    <div class="mcq-card" *ngIf="hasStarted && questions?.length">
      <!-- Header inside the card -->
      <div class="mcq-card__header">
        <button class="icon-btn back" (click)="goBack()" aria-label="Back">
          <img src="assets/images/reading/back.png" alt="" class="icon-img" />
        </button>

        <h3 class="mcq-card__title">
          Question {{ currentQuestionIndex + 1 }} of {{ questions.length }}
        </h3>

        <div class="mcq-card__actions">
          <button class="icon-btn1" (click)="startOver()" aria-label="Close">✖</button>
        </div>
      </div>

      <!-- Body -->
      <div class="mcq-card__body">
        <!-- Question pill -->
        <div class="quiz-pill quiz-question-pill">
          <span class="qq-label">Question:</span>
          <span class="qq-text">{{ questions[currentQuestionIndex].question }}</span>
        </div>

        <!-- Options -->
        <ul class="quiz-options">
          <li *ngFor="let option of (questions[currentQuestionIndex]?.options | slice:0:4); let i = index">
            <label class="quiz-pill quiz-option-pill"
                   [ngClass]="{
                'is-selected': !questions[currentQuestionIndex].isChecked && getSelectedAnswer() === option,
                'is-correct':  questions[currentQuestionIndex].isChecked && questions[currentQuestionIndex].correct_answer === option,
                'is-incorrect':questions[currentQuestionIndex].isChecked && getSelectedAnswer() === option && option !== questions[currentQuestionIndex].correct_answer
              }">
              <input type="radio"
                     class="visually-hidden"
                     [name]="'q_'+currentQuestionIndex"
                     [value]="option"
                     [checked]="getSelectedAnswer() === option"
                     (change)="setSelectedAnswer(option)"
                     [disabled]="questions[currentQuestionIndex].isChecked" />
              <span class="slot">{{ ['A','B','C','D'][i] }}:</span>
              <span class="opt-text">{{ option }}</span>
            </label>
          </li>
        </ul>
      </div>

      <!-- Footer inside the card -->
      <div class="mcq-card__footer">
        <!-- Submit (visible until answered) -->

        <button *ngIf="!questions[currentQuestionIndex].isChecked"
                class="submit-btn"
                (click)="validateAnswer(); scheduleCongratsIfLast()"
                [disabled]="!selectedAnswers[questions[currentQuestionIndex].question]">
          Validate
        </button>


        <!-- Next (for Q1 & Q2 after submit) -->
        <button *ngIf="questions[currentQuestionIndex].isChecked && currentQuestionIndex < questions.length - 1"
                class="next-btn"
                (click)="nextQuestion()">
          Next ▶
        </button>


      </div>
    </div>



  </div>




  <!-- Congratulations overlay -->
  <div class="congrats-overlay" *ngIf="showCongrats" aria-live="polite" aria-modal="true" role="dialog">
    <div class="congrats-card">
      <div class="score-badge" aria-label="Your score">
        Your Score: <span class="score">{{ scoreCorrect }}</span> / <span class="total">{{ scoreTotal }}</span>
      </div>
      <h2>{{ congratsTitle }}</h2>  <!-- Display the dynamic title -->
      <p>{{ congratsMessage }}</p>  <!-- Display the dynamic message -->

      <button class="start-over-btn" (click)="startOver()">Start Over</button>
    </div>
  </div>

</div>