/* pdf section */
        .pdf-section {
      max-width: 1100px;
      margin: auto;
      background: #0F0F0F;
      padding: 30px 20px;
      border-radius: 10px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      margin-top: 6%;
    }

    .pdf-section h2 {
      text-align: center;
      font-size: 28px;
      margin-bottom: 10px;
      color: #e6e2e2;
    }

    .pdf-section p {
      text-align: center;
      font-size: 16px;
      color: #ccc9c9;
      margin-bottom: 30px;
    }

    .card-container {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 20px;
    }

    .card {
      background: #1a1919;
      border-radius: 8px;
      padding: 20px;
      text-align: center;
      box-shadow: 0 2px 8px rgba(0,0,0,0.05);
      transition: transform 0.2s ease;
    }

    .card:hover {
      transform: translateY(-5px);
    }

    .card h3 {
      font-size: 20px;
      margin-bottom: 8px;
      color: #e7e3e3;
    }

    .card p {
      font-size: 14px;
      color: #b6b5b5;
      margin-bottom: 20px;
    }

    .card a {
      display: inline-block;
      text-decoration: none;
      background-color: transparent;
      color: white;
      padding: 10px 18px;
      border-radius: 8px;
      border: 1px solid red;
      font-size: 14px;
      transition: background-color 0.3s ease;
    }

    .card a:hover {
      background-color: #b65e5e;
    }

    @media (max-width: 600px) {
      .card h3 {
        font-size: 18px;
      }

      .card p {
        font-size: 13px;
      }

      .card a {
        font-size: 13px;
        padding: 8px 14px;
      }
    }