body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f7f9fc;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    align-items: center;
    flex-direction: column;
  }
  
  .container {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    text-align: center;
  }
  
  h1 {
    color: #222;
    margin-bottom: 1rem;
  }
  
  input[type="url"] {
    padding: 0.5rem;
    width: 90%;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
  }
  
  button {
    background: #007bff;
    color: white;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 5px;
    margin-top: 1rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s;
  }
  
  button:hover {
    background: #0056b3;
  }
  
  img {
    margin-top: 1rem;
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }
  
  a {
    display: inline-block;
    margin-top: 1rem;
    text-decoration: none;
    color: #007bff;
  }
  
  a:hover {
    text-decoration: underline;
  }