/* Research listing */

.research-intro { margin-bottom: 24px; }
.research-intro h2 { font-size: 1.8rem; margin-bottom: 8px; }
.research-intro p { color: var(--text-secondary); }

.filter-bar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.filter-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 6px 16px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}

.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.article-list { display: flex; flex-direction: column; gap: 16px; }

.article-entry {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    transition: border-color 0.15s;
}

.article-entry:hover { border-color: var(--accent); }

.article-entry h3 { font-size: 1.1rem; margin-bottom: 6px; }
.article-entry h3 a { color: var(--text); }
.article-entry h3 a:hover { color: var(--link); }

.article-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.article-meta .category-badge {
    background: var(--accent-light);
    color: var(--accent);
    padding: 1px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.article-abstract {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.article-tags {
    margin-top: 8px;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.article-tags .tag {
    font-size: 0.75rem;
    color: var(--link);
}

.article-tags .tag::before { content: '#'; }

.no-articles {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}