body {
    font-family: 'Times New Roman', Times, serif;
    background-color: #f5f5f5;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    text-align: center;
    background-color: #d4d4d4;
    padding: 20px;
    border-bottom: 2px solid #aaa;
}

header img.foto-redonda {
    border-radius: 50%;
    width: 150px;
    height: 150px;
}

nav ul {
    list-style: none;
    padding: 0;
    text-align: center;
    background-color: #eee;
    border-top: 2px solid #aaa;
    border-bottom: 2px solid #aaa;
}

nav ul li {
    display: inline;
    margin: 0 10px;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
}

main {
    padding: 20px;
}

section {
    margin-bottom: 40px;
}

h1, h2 {
    font-family: 'Garamond', serif;
}

footer {
    text-align: center;
    background-color: #d4d4d4;
    padding: 10px;
    border-top: 2px solid #aaa;
}