#ftb-root{display:flex;gap:20px;align-items:flex-start}
#ftb-controls{width:320px;background:#f9f9f9;padding:12px;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.06)}
#ftb-tree{flex:1;background:#ffffff;padding:12px;border-radius:8px;border:1px solid #eee}
.ftb-node{margin:6px 0;padding:8px;border:1px solid #e6e6e6;border-radius:8px;background:#fafafa}
.ftb-node strong{display:inline-block;margin-right:6px}
.ftb-children{margin-left:18px;margin-top:6px}
.ftb-toggle{cursor:pointer;font-weight:700;margin-right:8px}
#ftb-search-results{max-height:240px;overflow:auto;border:1px solid #eee;border-radius:6px;margin-top:8px}
#ftb-search-results .ftb-result{padding:8px;border-bottom:1px solid #f2f2f2;cursor:pointer}
#ftb-search-results .ftb-result:hover{background:#f5f5f5}
#ftb-add-form input,#ftb-add-form textarea,#ftb-add-form select{width:100%;box-sizing:border-box;padding:6px;margin-top:4px;border:1px solid #ddd;border-radius:4px}
#ftb-add-form button{background:#0073aa;color:#fff;border:none;padding:8px 12px;border-radius:6px;cursor:pointer}
#ftb-add-form button:hover{background:#006799}
.ftb-highlight{background:#fff7c6}