.tool-card {
  display: grid;
  gap: 16px;
}

#textInput {
  width: 100%;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.field span {
  font-size: 13px;
  color: #64748b;
}

.qr-preview {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 240px;
  padding: 12px;
  background: #f8fafc;
  border: 1px dashed #cbd5f5;
  border-radius: 12px;
}

.qr-preview canvas {
  max-width: 100%;
}