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

body {
    font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: #333;
    background: #fff;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 30px;
}

/* Hero Section */
.hero {
    margin-bottom: 50px;
}

.hero-content {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.hero-text {
    flex: 1;
}

.hero-image {
    flex-shrink: 0;
}

.hero-image img {
    width: 220px;
    height: 280px;
    object-fit: cover;
    border-radius: 8px;
}

h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #222;
}

.korean {
    font-size: 1.2rem;
    font-weight: 400;
    color: #666;
}

.intro {
    font-size: 1rem;
    color: #444;
    margin-bottom: 16px;
    line-height: 1.75;
}

.intro a {
    color: #4a9c5d;
    text-decoration: none;
}

.intro a:hover {
    text-decoration: underline;
}

.contact {
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 16px;
}

.links {
    margin-top: 20px;
}

.links a {
    color: #4a9c5d;
    text-decoration: none;
    font-weight: 500;
}

.links a:hover {
    text-decoration: underline;
}

.divider {
    color: #ccc;
    margin: 0 8px;
}

/* Two Column Section */
.two-column {
    display: flex;
    gap: 60px;
    margin-bottom: 50px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.column {
    flex: 1;
}

.column h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: #222;
}

.interest-list {
    list-style: disc;
    padding-left: 20px;
}

.interest-list li {
    padding: 4px 0;
    color: #444;
}

.education-list {
    list-style: none;
}

.education-list li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}

.education-list li::before {
    content: "🎓";
    position: absolute;
    left: 0;
    top: 8px;
    font-size: 0.9rem;
}

.degree {
    display: block;
    font-weight: 600;
    color: #333;
}

.school {
    font-size: 0.9rem;
    color: #666;
}

/* Sections */
section {
    margin-bottom: 45px;
}

h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 18px;
    color: #222;
}

/* News */
.news-list {
    list-style: none;
}

.news-list li {
    padding: 10px 0;
    font-size: 0.95rem;
    color: #444;
    border-bottom: 1px solid #f0f0f0;
}

.news-list li:last-child {
    border-bottom: none;
}

.date {
    color: #888;
    font-size: 0.9rem;
    margin-right: 8px;
}

/* Publications */
.pub-list {
    list-style: none;
}

.pub-list li {
    padding: 16px 0;
    border-bottom: 1px solid #f0f0f0;
}

.pub-list li:last-child {
    border-bottom: none;
}

.pub-title {
    font-weight: 600;
    color: #222;
    line-height: 1.5;
}

.pub-authors {
    font-size: 0.9rem;
    color: #666;
    margin-top: 4px;
}

.pub-venue {
    font-size: 0.9rem;
    color: #888;
    font-style: italic;
}

.pub-links {
    margin-top: 8px;
    font-size: 0.85rem;
}

.pub-links a {
    color: #4a9c5d;
    margin-right: 10px;
    text-decoration: none;
}

.pub-links a:hover {
    text-decoration: underline;
}

/* Projects */
.project-list {
    list-style: none;
}

.project-list li {
    padding: 14px 0;
    border-bottom: 1px solid #f0f0f0;
}

.project-list li:last-child {
    border-bottom: none;
}

.project-title {
    font-weight: 600;
    color: #4a9c5d;
    text-decoration: none;
}

.project-title:hover {
    text-decoration: underline;
}

.project-list p {
    font-size: 0.9rem;
    color: #666;
    margin-top: 4px;
    margin-bottom: 0;
}

/* See All */
.see-all {
    margin-top: 12px;
    font-size: 0.9rem;
}

.see-all a {
    color: #888;
    text-decoration: none;
}

.see-all a:hover {
    color: #4a9c5d;
}

/* Sub Page */
.sub-header {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.sub-header h1 {
    margin-top: 12px;
    font-size: 1.5rem;
}

.back-link {
    font-size: 0.9rem;
    color: #888;
    text-decoration: none;
}

.back-link:hover {
    color: #4a9c5d;
}

/* Year Section */
.year-section {
    margin-bottom: 35px;
}

.year-section h2 {
    font-size: 1.1rem;
    color: #888;
    padding-bottom: 8px;
    border-bottom: 1px solid #f0f0f0;
}

/* Full lists */
.news-list.full li,
.project-list.full li {
    padding: 12px 0;
}

.project-tags {
    font-size: 0.8rem;
    color: #888;
    margin-top: 6px;
}

.project-links {
    font-size: 0.85rem;
    margin-top: 6px;
}

.project-links a {
    color: #4a9c5d;
    margin-right: 10px;
    text-decoration: none;
}

/* Footer */
footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    color: #888;
    font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column-reverse;
        align-items: center;
        text-align: center;
    }
    
    .hero-image img {
        width: 180px;
        height: 230px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .two-column {
        flex-direction: column;
        gap: 30px;
    }
    
    .links {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 5px;
    }
}