<style>
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  body {
    font-family: Georgia, serif;
    background: url('https://www.transparenttextures.com/patterns/paper-fibers.png') repeat #f4eddc;
    color: #3b2e2a;
  }

  header {
    text-align: center;
    padding: 2rem 1rem 1rem;
  }

  header img {
    max-width: 90%;
    height: auto;
    display: block;
    margin: 0 auto;
  }

  main {
    margin-top: 0;
  }

  .button-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Max of 3 columns */
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
  }

  .button-grid a {
    display: block;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: none;
    background: none;
    padding: 0;
  }

  .button-grid a:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 18px rgba(0,0,0,0.2);
  }

  .button-grid img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
  }

  @media (max-width: 700px) {
    .button-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width: 500px) {
    .button-grid {
      grid-template-columns: 1fr;
    }
  }
</style>
