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

.container {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

header {
    margin-bottom: 20px;
}

header h1 {
    margin: 0;
    font-size: 2.5em;
}

header p {
    font-size: 1.2em;
    color: #666;
}

.portrait img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #d3d3d3;
    margin-bottom: 20px;
}

.portfolio {
    margin-top: 20px;
}

.portfolio h2 {
    font-size: 2em;
    margin-bottom: 10px;
}

.portfolio ul {
    list-style: none;
    padding: 0;
}

.portfolio ul li {
    margin: 10px 0;
}

.portfolio ul li a {
    text-decoration: none;
    color: #007BFF;
    font-size: 1.2em;
}

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

footer {
    margin-top: 30px;
    padding-top: 10px;
    border-top: 1px solid #ccc;
    font-size: 0.9em;
    color: #666;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }

    header h1 {
        font-size: 2em;
    }

    header p {
        font-size: 1em;
    }

    .portrait img {
        width: 120px;
        height: 120px;
    }

    .portfolio h2 {
        font-size: 1.5em;
    }

    .portfolio ul li a {
        font-size: 1em;
    }

    footer {
        font-size: 0.8em;
    }
}