:root {
    --text-primary: #2c2825;
    --text-secondary: #6b5d54;
    --bg-primary: #faf8f5;
    --bg-secondary: #f5f2ed;
    --accent: #8b6f47;
    --accent-hover: #6d5638;
    --border-light: #e8e4de;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --max-width: 720px;
}

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

body {
    font-family: 'Libertinus Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 18px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    margin-bottom: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.name {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.title {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 0.1s forwards;
}

.contact-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 0.2s forwards;
}

.contact-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 0.95rem;
}

.contact-link:hover {
    color: var(--accent);
}

.separator {
    color: var(--border-light);
    font-size: 0.8rem;
}

main {
    flex: 1;
}

.section {
    margin-bottom: var(--spacing-xl);
    opacity: 0;
    animation: fadeInUp 0.6s ease-out 0.3s forwards;
}

.section-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent);
    transition: width 0.3s ease;
}

.section:hover .section-title::after {
    width: 60px;
}

.about p {
    margin-bottom: var(--spacing-sm);
}

.intro {
    font-size: 1.05rem;
    line-height: 1.7;
}

.tagline {
    font-style: italic;
    color: var(--text-secondary);
    margin-top: var(--spacing-md);
    font-size: 1.1rem;
}

.inline-link {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, opacity 0.2s ease;
}

.inline-link:hover {
    border-bottom-color: var(--accent);
    opacity: 0.8;
}

.news-minimal {
    margin-bottom: var(--spacing-lg);
}

.news-list-minimal {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.news-item-minimal {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-md);
    font-size: 0.95rem;
}

.news-date {
    flex: 0 0 80px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 700;
    text-align: right;
}

.news-content-minimal {
    color: var(--text-secondary);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.news-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: 4px;
    transition: background-color 0.2s ease, border-left 0.2s ease;
    border-left: 3px solid transparent;
}

.news-item:hover {
    background-color: #f0ede6;
    border-left-color: var(--accent);
}


.news-content {
    line-height: 1.6;
}

.news-link {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.9rem;
    margin-right: var(--spacing-xs);
}

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

.research-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.research-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    transition: background-color 0.2s ease;
}

.research-item:hover {
    background-color: #f0eee9;
}



.research-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin: 0;
    margin-bottom: var(--spacing-xs);
}

.research-description {
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
    font-size: 0.95rem;
    margin-bottom: var(--spacing-xs);
}

.research-authors {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}

.research-authors strong {
    color: var(--accent);
}

.research-venue {
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 600;
}

.research-links {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.research-link {
    padding: 4px 12px;
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.85rem;
    transition: background-color 0.2s ease, color 0.2s ease;
    border: 1px solid var(--border-light);
}

.research-link:hover {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

.footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }
    
    .name {
        font-size: 2rem;
    }
    
    .news-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .news-date {
        margin-bottom: var(--spacing-xs);
    }
    
    
    .news-item-minimal {
        flex-direction: column;
        gap: 0.25rem;
    }
    
    .news-date {
        flex: initial;
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    .header {
        padding-top: var(--spacing-md);
    }
    
    .section {
        margin-bottom: var(--spacing-lg);
    }
}