body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: #f4f4f4;
  }
  
  .catalog-container {
    max-width: 900px;
    margin: 50px auto;
    margin-top: 80px;
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  }
  
  .catalog-container h1 {
    color: #0c2340;
    margin-bottom: 2rem;
  }
  
  .catalog-preview img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin-bottom: 2rem;
  }
  
  .catalog-preview iframe {
    width: 100%;
    height: 500px;
    border: none;
    margin-bottom: 2rem;
  }
  
  #catalog-form {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
  }
  
  #catalog-form input {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 250px;
  }
  
  #catalog-form button {
    padding: 0.75rem 1.5rem;
    background: #f37021;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
  }
  
  #catalog-form button:hover {
    background: #d35400;
  }