/* ===================================
   Publications Page Styles
   =================================== */

/* Publications List Styles */
.publications-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
}

.publication-item {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 4px rgba(7, 36, 54, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.publication-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(7, 36, 54, 0.15);
}

.publication-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    align-items: center;
}

.publication-type {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.type-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.type-accent {
    background-color: var(--accent-color);
    color: var(--white);
}

.type-secondary {
    background-color: var(--text-secondary);
    color: var(--white);
}

.publication-year {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1rem;
}

.publication-citations {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.publication-title {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-size: 1.3rem;
    line-height: 1.4;
}

.publication-authors {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-style: italic;
}

.publication-venue {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0;
}

/* Timeline Publications Styles */
.publications-timeline {
    position: relative;
    padding-left: 3rem;
}

.publications-timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--accent-color);
}

.timeline-publication {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

.timeline-year-marker {
    position: absolute;
    left: -2.75rem;
    top: 1rem;
    width: 4rem;
    text-align: center;
    font-weight: 700;
    color: var(--primary-color);
    background-color: var(--white);
    border: 3px solid var(--accent-color);
    border-radius: 20px;
    padding: 0.5rem 0.25rem;
    font-size: 0.9rem;
    z-index: 2;
}

.timeline-content {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    flex: 1;
    margin-left: 1rem;
}

.publication-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.citation-count {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.timeline-title {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
    line-height: 1.3;
}

.timeline-authors {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-style: italic;
    font-size: 0.95rem;
}

.timeline-venue {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0;
    font-size: 0.95rem;
}

/* Research Areas Grid */
.research-areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.research-area-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 4px rgba(7, 36, 54, 0.1);
}

.research-area-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.research-area-card p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.area-publications {
    list-style: none;
    padding: 0;
    margin: 0;
}

.area-publications li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.area-publications li::before {
    content: '📄';
    position: absolute;
    left: 0;
    top: 0;
}

/* Enhanced Metrics Grid for Publications */
.publications-list+.metrics-grid {
    margin-top: 3rem;
}

/* Publication Filters (for future enhancement) */
.publication-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background-color: var(--white);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-button:hover,
.filter-button.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* ===================================
   Responsive Design for Publications
   =================================== */
@media (max-width: 768px) {
    .publication-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .publication-type {
        align-self: flex-start;
    }

    .publications-timeline {
        padding-left: 2rem;
    }

    .publications-timeline::before {
        left: 0.5rem;
    }

    .timeline-year-marker {
        left: -2rem;
        width: 3rem;
        font-size: 0.8rem;
        padding: 0.25rem;
    }

    .timeline-content {
        margin-left: 0.5rem;
    }

    .timeline-publication {
        gap: 1rem;
    }

    .publication-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .research-areas-grid {
        grid-template-columns: 1fr;
    }

    .research-area-card {
        padding: 1.5rem;
    }

    .publication-item {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .publication-title {
        font-size: 1.1rem;
    }

    .timeline-title {
        font-size: 1.1rem;
    }

    .publications-timeline {
        padding-left: 1.5rem;
    }

    .timeline-year-marker {
        left: -1.75rem;
        width: 2.5rem;
        font-size: 0.75rem;
    }
}