/* Reset and base */
body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.6;
}

/* Header: Black */
header {
    background-color: #000000;
    color: #ffffff;
    text-align: center;
    padding: 2rem 1rem;
    border-bottom: 2px solid #dddddd;
}

header img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #ffffff;
    margin-bottom: 1rem;
}

header h1 {
    margin: 0;
    font-size: 2.2rem;
    color: #ffffff;
}

header p {
    font-size: 1.1rem;
    color: #dddddd;
}

/* Main body: White */
main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
    background-color: #ffffff;
    color: #000000;
}

section {
    margin-bottom: 2rem;
}

h2 {
    color: #000000;
    border-bottom: 1px solid #ccc;
    padding-bottom: 0.5rem;
}

/* Navigation (optional) */
nav a {
    color: #666666;
    margin: 0 10px;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: #bbbbbb;
    text-decoration: underline;
}

nav a.active {
    font-weight: bold;
    color: #ffffff;
}

/* Links in body */
a {
    color: #000000;
    text-decoration: underline;
}

a:hover {
    color: #555555;
}

/* Footer: black on white */
footer {
    background-color: #ffffff;
    color: #444444;
    text-align: center;
    padding: 1rem;
    font-size: 0.9rem;
    border-top: 1px solid #dddddd;
}

/* Profile */
.flex-container {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2rem;
}

.profile-image img {
    width: 200px;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
}

.intro-text {
    flex: 1;
}

@media (max-width: 768px) {
    .flex-container {
        flex-direction: column;
        align-items: flex-start;
    }
    .profile-image img {
        width: 100%;
        max-width: 300px;
    }
}

.affiliation {
    font-style: italic;
    font-size: 0.9rem;
    color: #999;
    margin-top: 0.5rem;
    text-align: left;
}