body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  padding: 20px;
}

.container {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

form {
  margin-bottom: 30px;
}

input, textarea, button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 10px;
}