body {
    margin: 0;
    font-family: 'Arial', sans-serif;
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
header {
    background-color: #007bff;
    color: #fff;
    padding: 1rem;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
}
main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}
iframe {
    border: none;
    width: 100%;
    max-width: 900px;
    height: 80vh;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
}
footer {
    background-color: #343a40;
    color: #fff;
    text-align: center;
    padding: 0.5rem;
    font-size: 0.9rem;
}
footer a {
    color: #007bff;
    text-decoration: none;
}
footer a:hover {
    text-decoration: underline;
}