body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
  }
  
  header,
  footer {
    text-align: center;
    padding: 1rem;
  }
  
  main {
    display: flex;
    justify-content: center;
  }
  
  form {
    background-color: white;
    padding: 2rem;
    margin-top: 2rem;
    width: 320px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  }
  
  form div {
    margin-bottom: 1rem;
  }
  
  label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: bold;
  }
  
  input,
  select,
  button {
    width: 100%;
    padding: 0.6rem;
    box-sizing: border-box;
  }
  
  button {
    background-color: black;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #333;
  }