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

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

header h1 {
    margin: 0;
    font-size: 2rem;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 1rem;
}

nav ul li a {
    color: white;
    text-decoration: none;
}

nav ul li a:hover {
    text-decoration: underline;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

article h2 {
    color: #2c3e50;
}

article p {
    font-size: 1.1rem;
}

.profile-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 2rem 0;
}

.card {
    background-color: #f5f5f5;
    padding: 1rem;
    border-radius: 5px;
    flex: 1;
    min-width: 0;
}

.card h3 {
    color: #2980b9;
}

pre {
    background-color: #ecf0f1;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #3498db;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin: 0.5rem 0;
}

.btn:hover {
    background-color: #2980b9;
}

figure img {
    border-radius: 5px;
    margin: 1rem 0;
}

footer {
    text-align: center;
    padding: 1rem;
    background-color: #333;
    color: #bbb;
    font-size: 0.9rem;
    position: relative;
    bottom: 0;
    width: 100%;
}

footer a {
    color: #bbb;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 600px) {
    .profile-cards {
        flex-direction: column;
    }

    nav ul li {
        display: block;
        margin: 0.5rem 0;
    }

    main {
        padding: 1rem;
    }
}