body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f5f5;
}
.container {
  max-width: 400px;
  margin: 30px auto;
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
h1 {
  font-size: 1.5em;
  margin-bottom: 20px;
  text-align: center;
}
input, select, button {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
}
button {
  background: #28a745;
  color: white;
  border: none;
  cursor: pointer;
}