.builder-playback {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 12px 14px;
  margin: 12px 0;
  border: 1px solid var(--lab-line, #dce4ef);
  border-radius: 12px;
  background: var(--surface, #fff);
  color: var(--text, #172033);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.45;
  min-width: 0;
}
.builder-playback[hidden] { display: none !important; }
.builder-playback__heading { display: flex; flex-direction: column; gap: 2px; min-width: 116px; }
.builder-playback__heading strong { font-size: 13px; }
.builder-playback__heading small { font-size: 11px; color: #64748b; }
.builder-playback button { font: inherit; cursor: pointer; border: 1px solid #d4deea; border-radius: 8px; background: #fff; color: #172033; padding: 7px 11px; white-space: nowrap; min-height: 44px; }
.builder-playback button[data-builder-action="play"] { background: var(--primary, #2563eb); border-color: transparent; color: #fff; min-width: 108px; }
.builder-playback button:focus-visible, .builder-playback input:focus-visible { outline: 3px solid #93c5fd; outline-offset: 2px; }
.builder-playback button:disabled { opacity: .45; cursor: default; }
.builder-playback__seek { flex: 1; display: flex; align-items: center; gap: 8px; min-width: 150px; }
.builder-playback__seek input { width: 100%; min-width: 0; accent-color: var(--primary, #2563eb); cursor: pointer; }
.builder-playback__time { font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; min-width: 74px; }
.builder-playback__status { font-size: 11px; color: #64748b; flex-basis: 100%; margin: 0; }
.builder-playback__repeat { display: flex; align-items: center; gap: 5px; white-space: nowrap; font-size: 12px; }
.builder-playback__repeat input { accent-color: var(--primary, #2563eb); }
.builder-tools { min-width: 0; }
.builder-tools { display:grid; gap:8px; margin-top:16px; padding-top:16px; border-top:1px solid #e1e7ef; }
#view-lab .lab-editor .builder-tools label { display:flex; align-items:center; font-size:11px; gap:8px; }
#view-lab .builder-tools input[type="checkbox"] { width:16px; height:16px; padding:0; margin:0; flex:none; }
.builder-tools strong { font-size:12px; }
.builder-tools output { color:#405b7d; font-size:11px; }
.builder-tools p { margin:0; font-size:10px; }
.builder-tools button { width:100%; }
.builder-group-dialog [data-group-members] { display:grid; gap:8px; margin:16px 0; max-height:50vh; overflow:auto; }
.builder-group-member { display:flex; align-items:center; gap:12px; padding:10px; border-bottom:1px solid #e1e7ef; cursor:pointer; }
.builder-group-member span { display:grid; gap:4px; }
.builder-group-member strong { font-size:13px; }
.builder-group-member small { color:#64748b; font-size:11px; }
.run-mode .lab-block.selected { outline:none; }
.builder-app-starters { margin:0 0 12px; border:1px solid #dce4ef; border-radius:10px; background:white; }
.builder-app-starters>summary { padding:12px 16px; font-size:12px; color:#405b7d; cursor:pointer; }
.builder-app-starters .lab-starters { margin:0; border:0; box-shadow:none; }
.builder-page-starters .page-starters { margin-bottom:10px; }
.builder-tools label { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.builder-tools input[type="checkbox"] { width: auto; accent-color: var(--primary, #2563eb); }
.builder-tools p, .builder-tools small { color: #64748b; font-size: 12px; line-height: 1.55; }
.builder-tools select, .builder-tools input, .builder-tools button { max-width: 100%; }
@media (max-width: 600px) {
  .builder-playback { padding: 10px; gap: 8px; }
  .builder-playback__heading { flex-basis: 100%; }
  .builder-playback__seek { flex-basis: 100%; order: 2; }
  .builder-playback__status { order: 3; }
  .builder-playback button { flex: 1; }
  .builder-playback__repeat { margin-left: auto; }
}