body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}

header h1 {
    margin-bottom: 0.5rem;
}

main {
    padding: 2rem;
    max-width: 800px;
    margin: auto;
}

section {
    background-color: #fff;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

button {
    background-color: #5cb85c;
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
}

button:hover {
    background-color: #4cae4c;
}

#message {
    margin-top: 1rem;
    font-weight: bold;
    color: #007bff;
}

footer {
    text-align: center;
    padding: 1rem 0;
    background-color: #333;
    color: #fff;
    position: relative;
    bottom: 0;
    width: 100%;
}