.qrFrame {
  display: flex;
  justify-content: center;
  padding: 12px;
  border: 1px solid var(--divider);
  border-radius: 8px;
  background: var(--chat-input-bg);
}

.qrCanvas {
  /* `qrcode.toCanvas` writes black pixels on a white quiet-zone
     background, so the canvas itself supplies all visual contrast. We
     just constrain its visual width so the rendered pixel ratio stays
     crisp on HiDPI displays — the underlying buffer can be larger. */
  width: 220px;
  height: 220px;
  display: block;
}
