/* ======== QR и предпросмотр ======== */
.preview-box {
  background: #f1f5f9;
  border-radius: 12px;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed #94a3b8;
  color: #64748b;
}
.vcard-box {
  background: #f8fafc;
  padding: 12px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 14px;
  color: #475569;
  white-space: pre-wrap;
  border: 1px solid #e2e8f0;
}

/* ======== Размеры QR ======== */
.qr-size-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 5px;
}
.qr-size-options label {
  background: #f1f5f9;
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
}
.qr-size-options input {
  margin-right: 5px;
}