.qf-fb-btn { gap: 6px; }


.qf-fb-count {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--consultant-blue);
}
.qf-fb-count[hidden] { display: none; }

.qf-fb-btn.is-active { border-color: var(--consultant-blue); }

.qf-fb-caret {
  margin-left: 1px;
  color: var(--ink-tertiary);
  transition: transform var(--dur-press) var(--ease-out);
}
.qf-fb-btn[aria-expanded="true"] .qf-fb-caret { transform: rotate(180deg); }


.qf-fb-panel {
  position: fixed;
  z-index: 400;
  display: flex;
  flex-direction: column;
  width: 320px;
  max-width: calc(100vw - 16px);
  background: var(--surface-bright);
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-3);
  opacity: 0;
  transform: translateY(-2px);
  transform-origin: top left;
  transition: opacity 140ms var(--ease-out), transform 140ms var(--ease-out);
}
.qf-fb-panel.is-above { transform-origin: bottom left; transform: translateY(2px); }
.qf-fb-panel.is-open { opacity: 1; transform: translateY(0); }
.qf-fb-panel[hidden] { display: none; }


.qf-fb-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-2) var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--rule);
}
.qf-fb-panel-title {
  font-size: var(--t-micro);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
  color: var(--ink-tertiary);
}

.qf-fb-panel-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.qf-fb-panel-body > * { flex: none; }

.qf-fb-panel-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--rule);
}

.qf-fb-empty {
  margin: 0;
  font-size: var(--t-base);
  color: var(--ink-tertiary);
}


.qf-fb-field > .form-label { display: block; }


.qf-fb-range {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.qf-fb-range-cell { display: flex; flex-direction: column; min-width: 0; }
.qf-fb-sub {
  margin-bottom: 3px;
  font-size: var(--t-xs);
  font-weight: 560;
  color: var(--ink-secondary);
  text-transform: none;
  letter-spacing: 0;
}


.qf-fb-input { width: 100%; }
.qf-fb-input[type="number"] { font-variant-numeric: tabular-nums; text-align: right; }


.qf-fb-options {
  max-height: 152px;
  overflow-y: auto;
  padding: 6px 8px;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--surface-bright);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.qf-fb-options .checkbox-row { flex: none; padding: 3px 0; }


.qf-fb-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: var(--space-2) var(--cell-x);
  border-bottom: 1px solid var(--rule);
}
.qf-fb-chips[hidden] { display: none; }

.qf-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 26px;
  padding: 0 2px 0 8px;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-bright);
  font-size: var(--t-xs);
  line-height: 1.2;
}
.qf-chip[hidden] { display: none; }

.qf-chip-label { color: var(--ink-tertiary); white-space: nowrap; }
.qf-chip-value {
  color: var(--ink);
  font-weight: 560;
  font-variant-numeric: tabular-nums;

  max-width: 26ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}


.qf-chip-x {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  flex: none;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--ink-tertiary);
  cursor: pointer;
  transition: background-color var(--dur-press) var(--ease-out),
              color var(--dur-press) var(--ease-out);
}
.qf-chip-x:hover { background: var(--surface-container); color: var(--secondary); }
.qf-chip-x:active { transform: scale(0.94); }
.qf-chip-x:focus-visible { outline: 2px solid var(--consultant-blue); outline-offset: 1px; }


.qf-fb-more,
.qf-fb-clear {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 6px;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  font-family: inherit;
  font-size: var(--t-sm);
  font-weight: 560;
  cursor: pointer;
  transition: background-color var(--dur-press) var(--ease-out);
}
.qf-fb-more { color: var(--ink-secondary); }

.qf-fb-clear { color: var(--consultant-blue); }
.qf-fb-more:hover,
.qf-fb-clear:hover { background: var(--surface-container); text-decoration: underline; }
.qf-fb-more:focus-visible,
.qf-fb-clear:focus-visible { outline: 2px solid var(--consultant-blue); outline-offset: 1px; }
.qf-fb-more[hidden] { display: none; }


@media (max-width: 380px) {
  .qf-fb-range { grid-template-columns: 1fr; }
}


@media (prefers-reduced-motion: reduce) {
  .qf-fb-panel,
  .qf-fb-panel.is-above,
  .qf-fb-panel.is-open { transform: none; }
  .qf-fb-caret { transition: none; }
  .qf-fb-btn[aria-expanded="true"] .qf-fb-caret { transform: none; }
  .qf-chip-x:active { transform: none; }
}