body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  h2, h3 {
    color: #333;
  }
  
  form {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);
    width: 320px;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
  }
  
  input[type="file"],
  button {
    padding: 0.6rem;
    font-size: 1rem;
  }
  
  label {
    font-size: 0.95rem;
    color: #444;
  }
  
  button {
    margin-top: 1rem;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #0056b3;
  }
  
  img {
    margin-top: 1.5rem;
    max-width: 400px;
    border: 2px solid #ccc;
    border-radius: 6px;
  }