body[data-research-page] .querybar .search-submit-btn { position: relative; }
body[data-research-page] #search-loading-indicator,
body[data-research-page] .search-submit-status {
    position: absolute; inset: 0; z-index: 1; margin: 0; width: auto;
    padding: 0; border: 0; border-radius: inherit; background: inherit;
    color: inherit; font-size: 12px; line-height: 1; white-space: nowrap;
    display: none; pointer-events: none; align-items: center; justify-content: center;
}
body[data-research-page] #search-loading-indicator.search-pending,
body[data-research-page] .search-submit-status.search-pending { display: flex; }
.search-submit-btn:disabled { cursor: wait; opacity: .7; }