body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
    background: #f5f5f5;
    color: #333;
  }
  
  .header {
    background: #1d4ed8;
    color: white;
    padding: .5rem;
    font-weight: bold;
  }
  
  .container {
    max-width: 700px;
    margin: 1rem auto;
    padding: 1rem;
    background: white;
    border-radius: 8px;
  }
  
  .hero h1 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }
  
  .update {
    color: #3b82f6;
    font-weight: bold;
  }
  
  .hero-img {
    max-width: 100%;
    margin: 1rem 0;
  }
  
  .description {
    font-size: 1.2rem;
    margin: 1rem 0;
  }
  
  .highlight {
    color: #3b82f6;
    font-weight: bold;
  }
  
  .quiz h3 {
    font-size: 1.5rem;
    margin: 1.5rem 0;
  }
  
  .buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
  }
  
  .buttons button {
    background-color: #15803d;
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
  }
  
  .buttons button:hover {
    background-color: #166534;
  }
  
  .footer {
    text-align: center;
    padding: 2rem 1rem;
    font-size: 0.9rem;
    color: #555;
  }

  .cta {
    margin-top: 2rem;
  }
  
  .cta-button {
    display: inline-block;
    background-color: #15803d;
    color: white;
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 12px;
    text-decoration: none;
    transition: background-color 0.3s ease;
  }
  
  .cta-button:hover {
    background-color: #166534;
  }
  
  @keyframes breathing {
    0% {
      transform: scale(1);
      box-shadow: 0 0 0 rgba(21, 128, 61, 0.7);
    }
    50% {
      transform: scale(1.05);
      box-shadow: 0 0 20px rgba(21, 128, 61, 0.6);
    }
    100% {
      transform: scale(1);
      box-shadow: 0 0 0 rgba(21, 128, 61, 0.7);
    }
  }
  
  .cta-button {
    display: inline-block;
    background-color: #15803d;
    color: white;
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 12px;
    text-decoration: none;
    transition: background-color 0.3s ease;
    animation: breathing 2.5s ease-in-out infinite;
  }
  
  .cta-button:hover {
    background-color: #166534;
    animation: none; /* Optional: stop animation on hover */
  }