* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

header {
    background-color: #6c757d;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

main {
    text-align: center;
}

iframe {
    margin-top: 2rem;
    transition: transform 0.3s ease;
}

iframe:hover {
    transform: translateY(-5px);
}

footer {
    background-color: #495057;
    color: #f8f9fa;
    text-align: center;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}

footer p {
    margin-top: 0.5rem;
}

@media (min-width: 768px) {
    body {
        background-color: #e9ecef;
    }

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