.container {
    max-width: 800px;
    margin: auto;
    padding: 20px;
    text-align: center;
  }
  
  .title {
    font-size: 2em;
    margin-bottom: 20px;
    color: #2c3e50;
  }
  
  #sentence-container {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  }
  
  #instruction {
    font-weight: bold;
    margin-bottom: 10px;
  }
  
  .word-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin: 15px 0;
  }
  
  .word-button {
    padding: 10px 14px;
    font-size: 16px;
    background-color: #f3f4f5;
    color: rgb(8, 8, 8);
    border: black;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
  }
  
  .word-button:hover {
    background-color: #2980b9;
  }
  
  #selected-sentence {
    margin: 10px 0;
    font-size: 18px;
    font-weight: bold;
    color: #333;
    min-height: 30px;
  }
  
  .selected-word {
    background-color: #4CAF50; /* Green background */
    color: white;
    opacity: 0.8;
    pointer-events: none;
    transition: background-color 0.3s ease;
  }
  
  .submit-btn {
    background-color: #27ae60;
    color: rgb(25, 69, 228);
    padding: 10px 18px;
    border: none;
    font-size: 16px;
    border-radius: 5px;
    margin-top: 10px;
    cursor: pointer;
  }
  
  .submit-btn:hover {
    background-color: #1e8449;
  }

  #submit-btn {
    background-color: orange;
    color: white;
    font-size: 1.0rem;
    padding: 15px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.3s ease;
  }
  
  #submit-btn:hover {
    background-color: darkorange;
  }
  
  
  .feedback-text {
    font-size: 18px;
    margin-top: 15px;
  }
  
  .navigation-buttons {
    margin-top: 10px;
    display: flex;
    justify-content: center;
    gap: 15px;
  }
  
  .nav-btn {
    background-color: #8e44ad;
    color: white;
    padding: 10px 18px;
    border: none;
    font-size: 16px;
    border-radius: 5px;
    cursor: pointer;
  }
  
  .nav-btn:hover {
    background-color: #6c3483;
  }
  .navigation-buttons button {
    background-color: #007BFF; /* Bootstrap Primary Blue */
    color: white;
    font-size: 1.2rem;
    padding: 12px 24px;
    margin: 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  .navigation-buttons button:hover {
    background-color: #0056b3; /* Darker blue on hover */
  }
  .music-toggle-absolute {
    position: fixed;
    bottom: 15px;
    right: 15px;
    font-size: 24px;
    background: #fff;
    border: none;
    border-radius: 50%;
    padding: 8px 12px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  }
  
  .back-button {
    position: absolute;
    top: 25px;
    left: 25px;
    background-color: var(--primary-blue); 
    color: var(--text-light);
    padding: 10px 20px; 
    border: none;
    border-radius: 10px; 
    font-size: 1em; 
    font-weight: 600; 
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    z-index: 10;
    box-shadow: 0 3px 6px var(--shadow-light);
}

.back-button:hover {
    background-color: #5c8ae6; 
    transform: translateY(-3px);
    box-shadow: 0 5px 10px var(--shadow-medium);
}

.back-button:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px var(--shadow-light);
}

/* Mobile-specific adjustments for very small screens */
@media (max-width: 480px) {
    .navigation-buttons button {
        font-size: 0.9em;
        padding: 10px 15px;
    }
    .back-button {
        padding: 6px 12px;
        font-size: 0.8em;
        top: 15px; 
        left: 15px; 
        border-radius: 8px;
    }
    #current-fruit-name {
        font-size: clamp(2em, 6vw, 4em); 
    }
    .container {
        padding: 40px 20px 20px 20px; 
    }
}