/* ================================
   CLEAN MINIMALIST ACADEMIC STYLE
   ================================ */

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

/* Base Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 
                 Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: #000;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    background-color: #ffffff;
}

/* ================================
   TYPOGRAPHY
   ================================ */

h1 {
    font-size: 2.5em;
    margin-bottom: 0.5em;
    color: #000;
    font-weight: 300;
}

h1 strong {
    font-weight: 700;
}

h2 {
    font-size: 1.5em;
    margin-top: 2em;
    margin-bottom: 0.8em;
    color: #000;
    font-weight: 400;
}

h3 {
    font-size: 1.2em;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    color: #000;
    font-weight: 500;
}

p {
    margin-bottom: 1em;
    font-weight: 300;
}

/* ================================
   LINKS
   ================================ */

a {
    color: #4A90E2;
    text-decoration: none;
    transition: all 0.2s ease;
    padding: 2px 6px;
    margin: -2px -6px;
    border-radius: 3px;
}

a:hover {
    background-color: #E3F2FD;
}

/* ================================
   NAVIGATION
   ================================ */

nav {
    background-color: #ffffff;
    padding: 1em 0;
    margin: -40px -20px 40px -20px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #e0e0e0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-name {
    font-size: 1.4em;
    font-weight: 400;
    flex-shrink: 0;
}

.nav-name a {
    color: #000;
    padding: 5px 0;
    margin: 0;
}

.nav-name a:hover {
    color: #4A90E2;
    background-color: transparent;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
    margin: 0;
    gap: 10px;
}

nav li {
    margin: 0;
}

nav a {
    color: #000;
    font-weight: 400;
    font-size: 1.05em;
    padding: 5px 10px;
    margin: 0;
    display: block;
}

nav a:hover {
    background-color: #E3F2FD;
    color: #4A90E2;
    border-radius: 4px;
}

/* ================================
   HEADER SECTION
   ================================ */

.header-section {
    display: flex;
    align-items: flex-start;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.profile-photo {
    flex-shrink: 0;
}

.profile-photo img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.header-text {
    flex: 1;
    min-width: 300px;
}

.contact-links {
    margin-top: 15px;
}

.contact-links a {
    display: inline-block;
    margin-right: 15px;
    padding: 8px 16px;
    color: #4A90E2;
    border: 1px solid #4A90E2;
    border-radius: 4px;
    font-size: 0.95em;
    background-color: #ffffff;
}

.contact-links a:hover {
    background-color: #E3F2FD;
}

/* ================================
   NEWS/UPDATES SECTION
   ================================ */

.news-section {
    background-color: #ffffff;
    padding: 20px;
    border-left: 3px solid #4A90E2;
    margin: 30px 0;
}

.news-item {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.news-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.news-date {
    color: #666;
    font-size: 0.9em;
    font-style: italic;
}

/* ================================
   PUBLICATIONS
   ================================ */

.publication {
    margin-bottom: 25px;
    padding-left: 0;
}

.pub-title {
    font-weight: 500;
    color: #000;
    font-size: 1.05em;
}

.pub-authors {
    color: #333;
    font-style: italic;
    margin: 5px 0;
}

.pub-venue {
    color: #666;
    margin: 5px 0;
}

.pub-links {
    margin-top: 8px;
}

.pub-links a {
    margin-right: 12px;
    padding: 4px 10px;
    background-color: #ffffff;
    border: 1px solid #4A90E2;
    border-radius: 3px;
    font-size: 0.9em;
    color: #4A90E2;
}

.pub-links a:hover {
    background-color: #E3F2FD;
}

/* ================================
   RESEARCH GRID
   ================================ */

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.research-card {
    display: block;
    padding: 0;
    background-color: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    overflow: hidden;
}

.research-card:hover {
    border-color: #4A90E2;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.15);
    transform: translateY(-3px);
    text-decoration: none;
    background-color: #ffffff;
}

.research-card-image {
    width: 100%;
    height: auto;
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    background-color: #ffffff;
}

.research-card-image img {
    width: 100%;
    max-width: 250px;
    height: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.research-card:hover .research-card-image img {
    transform: scale(1.05);
}

.research-card-content {
    padding: 25px;
}

.research-card h3 {
    margin-top: 0;
    color: #000;
    font-size: 1.3em;
    font-weight: 500;
}

.research-card p {
    color: #333;
    line-height: 1.5;
    margin-bottom: 15px;
}

.read-more {
    color: #4A90E2;
    font-weight: 400;
    display: inline-block;
    padding: 2px 6px;
    margin: -2px -6px;
}

.research-card:hover .read-more {
    margin-left: 5px;
    transition: margin-left 0.3s ease;
}

/* ================================
   RESEARCH FIGURES
   ================================ */

.research-figure {
    margin: 30px 0;
    text-align: center;
}

.research-figure img {
    max-width: 700px;
    width: 100%;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.research-figure figcaption {
    margin-top: 10px;
    font-style: italic;
    color: #666;
    font-size: 0.9em;
    text-align: center;
}

/* Figure size variants */
.research-figure.small img {
    max-width: 400px;
}

.research-figure.medium img {
    max-width: 600px;
}

.research-figure.large img {
    max-width: 900px;
}

.research-figure.full img {
    max-width: 100%;
}

/* ================================
   RESEARCH PROJECTS
   ================================ */

.project {
    margin-bottom: 30px;
    padding: 20px;
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
}

.project h3 {
    margin-top: 0;
    color: #000;
}

/* ================================
   TEACHING
   ================================ */

.course {
    margin-bottom: 20px;
    padding: 15px;
    border-left: 3px solid #4A90E2;
    background-color: #ffffff;
}

.course-title {
    font-weight: 500;
    color: #000;
}

.course-details {
    color: #666;
    font-size: 0.95em;
    margin: 5px 0;
}

/* ================================
   FOOTER
   ================================ */

footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    text-align: center;
    color: #666;
    font-size: 0.9em;
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

@media (max-width: 768px) {
    body {
        padding: 20px 15px;
    }
    
    nav {
        margin: -20px -15px 20px -15px;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 15px;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
        gap: 5px;
    }
    
    .header-section {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .profile-photo img {
        width: 150px;
        height: 150px;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
    }
    
    .research-card-image {
        min-height: 150px;
        padding: 25px;
    }
    
    .research-card-image img {
        max-width: 200px;
    }
}