.qr-workbench {
  display: grid;
  grid-template-columns: minmax(250px, 0.6fr) minmax(0, 1.4fr);
  gap: 14px;
}

.qr-controls,
.qr-preview {
  border: 1px solid var(--site-border);
  border-radius: 20px;
  background: rgba(255,255,255,.022);
}

.qr-controls {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 22px;
}

.qr-controls label {
  display: grid;
  gap: 7px;
}

.qr-controls label > span {
  color: var(--site-muted);
  font-size: 10px;
}

.qr-controls select,
.qr-controls button {
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 11px;
  color: var(--site-text);
  background: rgba(255,255,255,.035);
  font: inherit;
  font-size: 11px;
}

.qr-controls button {
  border-color: rgba(245,158,11,.22);
  color: var(--site-amber);
  background: rgba(245,158,11,.055);
  font-weight: 900;
  cursor: pointer;
}

.qr-preview {
  display: grid;
  place-items: center;
  padding: 24px;
}

#qrCanvas {
  display: block;
  width: min(100%, 560px);
  height: auto;
}

@media (max-width: 820px) {
  .qr-workbench { grid-template-columns: 1fr; }
}