body {
    font-family: Arial, sans-serif;
    margin: 1rem;
    max-width: 600px;
}

h1, h2 {
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

input, select, button {
    padding: 0.5rem;
    font-size: 1rem;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #0056b3;
}

ul {
    list-style: none;
    padding: 0;
}

li {
    padding: 0.5rem;
    border-bottom: 1px solid #ddd;
}

pre {
    background: #f5f5f5;
    padding: 1rem;
}