.page-header {
    margin-bottom: 50px;
    animation: fadeIn 0.8s ease-out;
}

.back-link {
    font-family: 'Work Sans', sans-serif;
    font-size: 14px;
    color: var(--secondary-text);
    display: inline-block;
    margin-bottom: 20px;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--accent-color);
    transform: translateX(-5px);
}

.page-title {
    font-family: 'Work Sans', sans-serif;
    font-size: 36px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--primary-text);
    margin-bottom: 10px;
}

.research-section {
    margin-bottom: 60px;
    animation: fadeIn 0.8s ease-out 0.3s both;
}

.section-title {
    font-family: 'Work Sans', sans-serif;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--accent-color);
    margin-bottom: 30px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.paper {
    margin-bottom: 40px;
    padding: 24px;
    background: var(--bg-subtle);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.paper:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--accent-color);
}

.paper-title {
    font-family: 'Work Sans', sans-serif;
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.paper-meta {
    font-family: 'Work Sans', sans-serif;
    font-size: 14px;
    color: var(--secondary-text);
    margin-bottom: 16px;
    font-style: italic;
}

.paper-abstract {
    color: var(--secondary-text);
    margin-bottom: 16px;
    line-height: 1.7;
}

.paper-abstract-short {
    font-size: 15px;
    font-style: italic;
    color: var(--secondary-text);
    margin-bottom: 14px;
    line-height: 1.6;
}

.paper-conferences {
    font-size: 0.9rem;
    color: #555;
    margin-top: 0.4rem;
}

.paper-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.paper-link {
    font-family: 'Work Sans', sans-serif;
    font-size: 14px;
    font-weight: 500;
    color: var(--accent-color);
    padding: 8px 16px;
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    transition: var(--transition);
    display: inline-block;
}

.paper-link::after {
    display: none;
}

.paper-link:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-2px);
}

.course {
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-subtle);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.course:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.course-title {
    font-family: 'Work Sans', sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-text);
    margin-bottom: 6px;
}

.course-meta {
    font-family: 'Work Sans', sans-serif;
    font-size: 14px;
    color: var(--secondary-text);
    margin-bottom: 12px;
}

.course-description {
    color: var(--secondary-text);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .page-title {
        font-size: 32px;
    }

    .section-title {
        font-size: 18px;
    }

    .paper,
    .course {
        padding: 18px;
    }

    .paper-title,
    .course-title {
        font-size: 18px;
    }

    .paper-links {
        flex-direction: column;
        gap: 12px;
    }

    .paper-link {
        text-align: center;
    }
}