body {
  -webkit-tap-highlight-color: transparent;
}

/* Khung hiển thị camera trực tiếp */
#qr-reader {
  border: none !important;
  background: #000 !important;
  width: 100% !important;
}

#qr-reader video { 
  object-fit: cover !important; 
  border-radius: 12px !important; 
  width: 100% !important; 
  height: 320px !important;
  display: block !important;
}

/* Định dạng nút ẩn nếu thư viện tự sinh ra */
#qr-reader button {
  background-color: #2563eb !important;
  color: white !important;
  padding: 8px 16px !important;
  border-radius: 8px !important;
  font-size: 13px !important;
  border: none !important;
  margin-top: 8px !important;
  cursor: pointer;
}