.section-td1 {
      max-width: 900px;
      margin: auto;
      background: #fff;
      border-radius: 12px;
      padding: 25px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);  
      margin-top: 320px;}

     .section-td1 h1 {
      text-align: center;
      margin-bottom: 15px;
      font-size: 1.8rem;
      color: #222;
    }

     .section-td1 p {
      text-align: center;
      font-size: 1rem;
      color: #555;
      margin-bottom: 25px;
    }
.pdf-container {
  width: 100%;
  height: 200vh; 
  border: 1px solid #ddd;
}
.pdf-container iframe {
  width: 100%;
  height: 100%;
}
  
   .btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 10px 16px;
      border-radius: 25px;
      font-size: 0.9rem;
      font-weight: bold;
      text-decoration: none;
      cursor: pointer;
      border: none;
      transition: 0.3s;
    }
     .btn {
      color: #fff;
      background: linear-gradient(135deg, #4b6cfb, #6e8bff);
    }

    .btn-secondary {
      margin-left: 10px;
      color: #4b6cfb;
      background: #fff;
      border: 2px solid #4b6cfb;
      float: right;
    }
    .btn-secondary:hover {
      background: #4b6cfb;
      color: #fff;
    }
    .btn:hover {
      box-shadow: 0 5px 15px rgba(75,108,251,0.4);
    }