html {
    font-size: 18px; 
  }
  
  body {
    font-family: "Arial", sans-serif;
    background: #f9f9f9;
    color: #333;
  }
  
  .container {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    margin-bottom: 40px;
  }
  
  /* HEADINGS */
  h1, h2 {
    margin-bottom: 15px;
    color: #4A148C; /* A purple tone */
    font-size: 1.5rem; /* Larger headings */
  }
  
  p {
    margin-bottom: 15px;
    line-height: 1.4;
    font-size: 1.1rem;
  }
  
  /* DAYS CONTAINER */
  .days-container {
    display: grid;
    gap: 15px;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    margin-bottom: 20px;
  }
  
  .day-item {
    background: #FAFAFA;
    border-radius: 8px;
    padding: 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  }
  
  .text-group {
    text-align: left;
  }
  
  .english-day {
    font-weight: bold;
    font-size: 1.2rem;
  }
  
  .spanish-day {
    font-size: 1.1rem;
    color: #333;
  }
  
  .pronunciation {
    color: #666;
    font-style: italic;
    font-size: 0.95rem;
  }
  
  /* SPEAKER BUTTON */
  .speaker-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: transform 0.2s ease;
  }
  
  .speaker-btn:hover {
    transform: scale(1.1);
  }
  
  .speaker-icon {
    width: 36px;
    height: 36px;
  }
  
  /* QUIZ BUTTON */
  .btn-quiz {
    background: #E91E63; /* pinkish */
    color: #fff;
    border: none;
    padding: 14px 22px;
    font-size: 1.05rem; /* Slightly larger button text */
    cursor: pointer;
    border-radius: 25px;
    margin: 10px 5px;
    transition: all 0.3s ease;
  }
  
  .btn-quiz:hover {
    background: #AD1457;
    transform: translateY(-2px);
  }
  
  /* QUIZ SECTION */
  .quiz-intro {
    margin-bottom: 20px;
    font-style: italic;
    font-size: 1.05rem;
    color: #555;
  }
  
  .quiz-controls {
    margin-top: 20px;
  }
  
  .submit-btn {
    background: #4CAF50; /* green */
  }
  
  .submit-btn:hover {
    background: #388E3C;
  }
  
  /* QUESTION CARD */
  #questionCard {
    text-align: left;
    background: #F3E5F5; /* light purple shade */
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 1px 5px rgba(0,0,0,0.1);
    margin-bottom: 20px;
  }
  
  .question-text {
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 1.15rem;
  }
  
  .choices-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  
  .choice-label {
    display: flex;
    align-items: center;
    font-size: 1rem;
  }
  
  .choice-input {
    margin-right: 6px;
  }
  
  /* RESULT SECTION */
  #quizScoreText {
    margin: 20px 0;
    font-weight: bold;
    font-size: 1.2rem;
  }
  
  /* RESPONSIVE ADJUSTMENTS */
  @media (max-width: 600px) {
    .container {
      padding: 15px;
    }
    
    .btn-quiz {
      font-size: 1rem;
      padding: 10px 16px;
    }
    
    .question-text {
      font-size: 1rem;
    }
    
    .speaker-icon {
      width: 32px;
      height: 32px;
    }
  }
  .inactive-btn {
    opacity: 0.5;
    cursor: not-allowed;
  }