body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  margin: 20px;
}

main {
  max-width: 600px;
  background: #fff;
  padding: 20px;
  margin: auto;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

label, legend {
  display: block;
  margin-top: 15px;
  font-weight: bold;
}

input, select, textarea {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  margin-top: 20px;
  padding: 10px;
  background: #007BFF;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}