.cert-header {
    background: url('your-stamp-image.jpg') no-repeat center center/cover;
    padding: 100px 0;
    text-align: center;
    position: relative;
    color: #fff;
  }

  .cert-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
  }

  .cert-header-content {
    position: relative;
    z-index: 2;
  }

  .cert-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .breadcrumb {
    font-size: 1rem;
    color: #ddd;
  }

  .cert-sec {
    background: #fff;
    padding: 80px 0;
    overflow: hidden;
  }

  .cert-container {
    max-width: 1600px;
    margin: auto;
    padding: 0 20px;
  }

  .cert-swiper {
    padding-bottom: 50px;
  }

  .cert-slide {
    display: flex;
    justify-content: center;
  }

  .cert-card {
    position: relative;
    width: 350px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
  }

  .cert-card img {
    width: 100%;
    display: block;
    object-fit: cover;
  }

  .cert-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 80, 150, 0.75);
    opacity: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s ease;
  }

  .cert-card:hover .cert-overlay {
    opacity: 1;
  }

  .cert-plus {
    width: 60px;
    height: 60px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #005096;
    font-size: 34px;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .cert-overlay p {
    color: #fff;
    font-size: 1rem;
    font-weight: 500;
  }

  @media (max-width: 768px) {
    .cert-header h1 {
      font-size: 2rem;
    }

    .cert-card {
      width: 90%;
    }
  }