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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    background-color: #f9f9f9;
}

header {
    padding: 1rem;
}

nav ul {
    list-style-type: none;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 15px;
}

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

main {
    padding: 2rem 0;
}

.intro-section {
    display: flex;
    margin-bottom: 3rem;
    padding: 2rem;
    border-radius: 8px;
}

.profile-image {
    flex: 0 0 200px;
    margin-right: 2rem;
}

.profile-image img {
    width: 100%;
    border-radius: 50%;
}

.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.intro-text {
    margin-bottom: 2rem;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.publications-list ul {
    list-style-type: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.publication-item {
    display: flex;
    margin-bottom: 2rem;
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 800px;
    width: 100%;
}

.publication-item img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    margin-right: 1.5rem;
    border-radius: 4px;
}

.publication-details h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.authors {
    font-style: italic;
    margin-bottom: 0.5rem;
    color: #7f8c8d;
}

footer {
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .intro-section {
        flex-direction: column;
    }

    .profile-image {
        margin-right: 0;
        margin-bottom: 1rem;
    }

    .content {
        text-align: center;
    }

    .publication-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .publication-item img {
        margin-right: 0;
        margin-bottom: 1rem;
    }
}