.research-intro {
    font-size: 1.1rem;
    margin-bottom: calc(var(--spacing-unit) * 2);
    color: var(--text-light);
}

.research-tabs {
    margin: calc(var(--spacing-unit) * 3) 0;
}

.tab-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    border-bottom: 2px solid var(--gray-border);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.tab-list button {
    background: none;
    border: none;
    padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 1.5);
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-light);
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.tab-list button:hover {
    color: var(--primary-color);
}

.tab-list button[aria-selected="true"] {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 500;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.tab-panel h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-unit);
}

.tab-panel h4 {
    margin-top: calc(var(--spacing-unit) * 2);
    margin-bottom: var(--spacing-unit);
    color: var(--text-dark);
}

.project-list {
    list-style: none;
}

.project {
    background: var(--gray-light);
    padding: calc(var(--spacing-unit) * 1.5);
    margin-bottom: var(--spacing-unit);
    border-radius: 8px;
}

.project h5 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.project p {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.project a {
    color: var(--secondary-color);
    text-decoration: none;
}

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

.related-pubs {
    list-style: none;
    margin-top: var(--spacing-unit);
}

.related-pubs a {
    color: var(--secondary-color);
    text-decoration: none;
}

.related-pubs a:hover {
    text-decoration: underline;
}

.past-research {
    margin-top: calc(var(--spacing-unit) * 4);
    padding-top: calc(var(--spacing-unit) * 2);
    border-top: 1px solid var(--gray-border);
}

.past-research ul {
    list-style-position: inside;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .tab-list {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .tab-list button {
        white-space: nowrap;
    }
}