body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}
header {
    background-color: #4CAF50;
    color: white;
    text-align: center;
    padding: 1rem 0;
}
main {
    max-width: 800px;
    margin: 2rem auto;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
h1 {
    margin-bottom: 1rem;
    font-size: 2rem;
    color: #4CAF50;
}
form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
label {
    font-size: 1.2rem;
    font-weight: bold;
}
select {
    padding: 0.5rem;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}
ul {
    margin: 1rem 0;
    padding: 0;
    list-style: none;
}
ul li {
    background: #f9f9f9;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}
p {
    font-size: 1rem;
    color: #555;
}
footer {
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    background-color: #4CAF50;
    color: white;
}