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

:root {
    --bg-color: #fafafa;
    --text-color: #1a1a1a;
    --text-light: #666;
    --border-color: #e0e0e0;
    --accent-color: #58708d;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0f0f0f;
        --text-color: #f5f5f5;
        --text-light: #999;
        --border-color: #333;
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-light);
    font-size: 0.95rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* Hero Section */
.hero {
    margin: 4rem 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 3rem;
    align-items: center;
}

.left-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.photo-container {
    display: flex;
    justify-content: center;
}

.photo {
    width: 250px;
    height: 250px;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
    .photo {
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    }
}

.right-column {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.text-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.right-column h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.bio {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.bio:last-of-type {
    margin-bottom: 2rem;
}

.bio a {
    color: var(--accent-color);
    text-decoration: none;
}

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

/* Social Links */
.social-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem;
    width: 250px;
}

.social-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.social-link:hover {
    text-decoration: underline;
}

/* Research Section */
.research {
    margin: 4rem 0;
}

.research h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.research-text {
    color: var(--text-light);
    font-size: 1rem;
    line-height: 1.8;
    max-width: 700px;
}

/* Publications Section */
.publications {
    margin: 4rem 0;
}

.publications h2 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.papers-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.paper {
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.paper:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.paper-meta {
    margin-bottom: 0.5rem;
}

.paper-venue {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 500;
}

.oral-badge {
    color: #dc2626;
    font-weight: 600;
    margin-left: 0.5rem;
}

.paper h3 {
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.paper h3 a {
    color: var(--text-color);
    text-decoration: none;
}

.paper h3 a:hover {
    color: var(--accent-color);
}

.paper-authors {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.paper-links {
    display: flex;
    gap: 1.2rem;
}

.paper-link {
    display: inline-block;
    color: var(--accent-color);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.3s;
}

.paper-link:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem 0;
        margin-bottom: 1rem;
    }

    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .left-column {
        flex-direction: row;
        align-items: center;
        gap: 2rem;
    }

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

    .photo {
        width: 180px;
        height: 180px;
    }

    .social-links {
        flex-direction: row;
        gap: 1.5rem;
        flex-wrap: wrap;
    }

    .paper-header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .paper-year {
        padding-top: 0;
    }

    .paper-links {
        flex-wrap: wrap;
        gap: 1rem;
    }
}