body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: #f5f7fa;
  color: #333;
}

#scanner, #form {
  display: none;
  text-align: center;
}

video {
  width: 100%;
  max-width: 400px;
  border: 2px solid #333;
  border-radius: 10px;
}

button {
  padding: 10px 20px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 5px;
  font-size: 16px;
  cursor: pointer;
}

button:hover {
  background-color: #0056b3;
}

#notification {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #28a745;
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
  font-size: 16px;
}