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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 2px solid #007bff;
}

.header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: #222;
}

.welcome {
    font-size: 1.5em;
    color: #007bff;
    font-weight: 300;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.nav-link {
    color: #007bff;
    text-decoration: none;
    font-size: 1em;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #0056b3;
    text-decoration: underline;
}

/* Sections */
section {
    margin-bottom: 40px;
}

section h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: #222;
    border-left: 4px solid #007bff;
    padding-left: 15px;
}

section p {
    margin-bottom: 10px;
    color: #555;
}

.bio p {
    margin-bottom: 15px;
}

.bio p:last-child {
    margin-bottom: 0;
}

.bio em {
    font-style: italic;
    color: #333;
}

.bio-image {
    max-width: 200px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 15px 0;
    display: block;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Publications */
.pub-subheading {
    font-size: 1.1em;
    margin-top: 20px;
    margin-bottom: 10px;
    color: #444;
    font-weight: 600;
    font-style: italic;
}

.pub-list {
    list-style: none;
    padding-left: 0;
}

.pub-list li {
    margin-bottom: 15px;
    padding-left: 20px;
    position: relative;
    color: #555;
    line-height: 1.7;
}

.pub-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #007bff;
}

.pub-list em {
    font-style: italic;
    color: #333;
}

.pub-list strong {
    font-weight: 600;
}

/* Presentations */
.pres-list {
    list-style: none;
    padding-left: 0;
}

.pres-list li {
    margin-bottom: 15px;
    padding-left: 20px;
    position: relative;
    color: #555;
    line-height: 1.7;
}

.pres-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #007bff;
}

.pres-list strong {
    font-weight: 600;
}

/* Links */
a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #007bff;
    color: white;
    font-size: 1.5em;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-icon:hover {
    background-color: #0056b3;
    transform: scale(1.1);
    text-decoration: none;
}

/* Responsive */
@media (max-width: 600px) {
    .header h1 {
        font-size: 2em;
    }

    .welcome {
        font-size: 1.2em;
    }

    section h3 {
        font-size: 1.3em;
    }
}