body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background: #f5f5f5;
  }
  
  h1 {
    text-align: center;
  }
  
  .form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  input, button {
    padding: 5px 10px;
    font-size: 1rem;
  }
  
  table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
  }
  
  th, td {
    border: 1px solid #ccc;
    padding: 8px;
    text-align: center;
  }
  
  th {
    background: #eee;
  }
  
  button {
    cursor: pointer;
  }