body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    color: #333;
}

header {
    text-align: center;
    margin-bottom: 30px;
}

h1 {
    color: #0056b3;
    font-size: 2.5em;
}

.subtitle {
    color: #555;
    font-style: italic;
}

main {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    max-width: 800px;
    margin: 0 auto;
}

h2 {
    color: #0056b3;
    border-bottom: 2px solid #eee;
    padding-bottom: 10px;
    margin-top: 30px;
}

ul {
    list-style-type: disc;
    margin-left: 20px;
}

strong {
    color: #004085;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    color: #777;
}

/* Responsiveness (Basic) */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    h1 {
        font-size: 2em;
    }
    main {
        padding: 20px;
    }
}