body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #121212;
    color: #ffffff;
    text-align: center;
    margin: 0;
    padding: 20px;
  }
  h1 {
    font-size: 2.5em;
    font-weight: 300;
  }
  #datetime {
    font-size: 1.2em;
    color: #a0a0a0;
    margin-bottom: 40px;
  }
  .service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
  }
  .service-button {
    background-color: #1e1e1e;
    border: 1px solid #333;
    border-radius: 8px;
    color: #ffffff;
    font-size: 1.2em;
    padding: 25px 15px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 80px;
  }
  .service-button:hover {
    background-color: #333;
    transform: translateY(-5px);
  }