body {
      font-family: Arial, sans-serif;
      margin: 0;
    }

    #calltoaction {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.75);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 9999;
      visibility: hidden;
      opacity: 0;
      transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    #calltoaction.active {
      visibility: visible;
      opacity: 1;
    }

    .cta-box {
      background: #fff;
      padding: 2rem;
      border-radius: 8px;
      text-align: center;
      max-width: 400px;
      box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    }

    .cta-box h2 {
      margin-bottom: 1rem;
      color: #333;
    }

    .cta-box p {
      margin-bottom: 1.5rem;
      color: #555;
    }

    .cta-box textarea {
      width: 100%;
      height: 100px;
      margin-bottom: 1rem;
      padding: 0.5rem;
      border-radius: 4px;
      border: 1px solid #ccc;
      resize: none;
      font-size: 1rem;
    }
    
    .cta-box button {
      background-color: #c62828;
      color: white;
      border: none;
      padding: 0.75rem 1.5rem;
      font-size: 1rem;
      border-radius: 4px;
      cursor: pointer;
    }

    .cta-box button:hover {
      background-color: #b71c1c;
    }
    
    .confirmation {
      margin-top: 1rem;
      color: green;
      font-weight: bold;
    }