body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('images/smb-watermark.png'); /* watermark image */
  background-repeat: repeat;
  background-position: center;
  background-size: 200px 200px;   /* adjust spacing between tiles */
  opacity: 0.2;                  /* faint watermark */
  pointer-events: none;           /* allows interaction with form */
  z-index: -1;                     /* behind all content */
}

    body {
      font-family: Arial, sans-serif;
      margin: 0;
      padding: 0;
      background-color: #f7f7f7;
   } 
   header, footer {
      text-align: center;
      padding: 1rem;
      background-color: #222;
      color: #fff;
    }
    main {
      max-width: 900px;
      margin: 2rem auto;
      padding: 0 1rem;
    }
    .card {
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 5px rgba(0,0,0,0.1);
      padding: 1rem 2rem;
      margin-bottom: 2rem;
    }
    h1, h2 {
      margin: 0 0 1rem 0;
    }
    .form-group {
      margin-bottom: 1rem;
    }
    input, textarea, button {
      width: 100%;
      padding: 8px;
      margin-top: 4px;
      border: 1px solid #ccc;
      border-radius: 4px;
      box-sizing: border-box;
      font-size: 1rem;
    }
    button {
      background-color: #28a745;
      color: white;
      cursor: pointer;
      border: none;
    }
    button:hover {
      background-color: #218838;
    }
    table {
      width: 100%;
      border-collapse: collapse;
      table-layout: fixed;
    }
    th, td {
      border: 1px solid #ccc;
      padding: 8px;
      text-align: left;
      word-wrap: break-word;
    }
    th {
      background-color: #f2f2f2;
    }