/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: #1a365d;
    color: white;
    padding: 3rem 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.subtitle {
    font-size: 1.3rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
}

.affiliation {
    font-size: 1rem;
    opacity: 0.9;
}

/* Navigation Styles */
nav {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    padding: 1rem 0;
}

nav li {
    margin: 0 2rem;
}

nav a {
    text-decoration: none;
    color: #333;
    font-weight: 400;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #1a365d;
}

/* Main Content Styles */
main {
    padding: 3rem 0;
    background-color: white;
    margin: 2rem auto;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

section {
    margin-bottom: 3rem;
    padding: 0 2rem;
}

section:last-child {
    margin-bottom: 0;
}

h2 {
    color: #1a365d;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 400;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
    text-align: justify;
}

/* Research List Styles */
.research-list {
    list-style: none;
    padding-left: 0;
}

.research-list li {
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.research-list li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #1a365d;
}

/* Publication Styles */
.publication {
    margin-bottom: 2rem;
}

.publication h3 {
    color: #1a365d;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 400;
}

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

.publication-list li {
    margin-bottom: 1.2rem;
    padding-left: 1rem;
    border-left: 3px solid #e2e8f0;
}

.publication-list strong {
    color: #2d3748;
}

.publication-list em {
    color: #718096;
}

.publication-list a {
    color: #1a365d;
    text-decoration: none;
    font-size: 0.9rem;
}

.publication-list a:hover {
    text-decoration: underline;
}

.more-publications {
    text-align: right;
    margin-top: 1.5rem;
}

.more-publications a {
    color: #1a365d;
    text-decoration: none;
    font-weight: 500;
}

.more-publications a:hover {
    text-decoration: underline;
}

/* Contact Section Styles */
.contact-info {
    background-color: #f7fafc;
    padding: 2rem;
    border-radius: 8px;
}

.contact-info p {
    margin-bottom: 0.8rem;
    text-align: left;
}

.social-links {
    margin-top: 1.5rem;
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: #1a365d;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid #1a365d;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: #1a365d;
    color: white;
}

/* Footer Styles */
footer {
    background-color: #2d3748;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer p {
    text-align: center;
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav li {
        margin: 0.5rem 0;
    }
    
    section {
        padding: 0 1rem;
    }
    
    .social-links {
        flex-direction: column;
        align-items: flex-start;
    }
}