html,
body,
p {
  margin: 0;
}

* {
  box-sizing: border-box;
}

.robot {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background-size: 100% 100%;
  background-position: 0px 0px;
  background-image: repeating-radial-gradient(75% 75% at 50% 50%, #005CA8 0%, #71C4FFFF 100%);
  font-family: Arial, sans-serif;
  line-height: 1.5;
}

.robot__app {
  box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
  width: 350px;
  padding: 30px;
  background: white;
  border-radius: 10px;
  text-align: center;
}

.robot__img {
  max-width: 150px;
  margin-bottom: 20px;
}

.robot__heading {
  margin-bottom: 15px;
  font-size: 1.5em;
  line-height: 1.3;
}

.robot__instruction {
  margin-bottom: 15px;
  font-size: 1em;
  color: #555;
}

.robot__btn {
  padding: 10px 20px;
  transition: background 0.3s;
  background: #005CA8;
  cursor: pointer;
  border: none;
  border-radius: 5px;
  font-size: 1em;
  color: white;
}

.robot__btn:hover {
  background: #0056b3;
}

/* scanner */
.robot__scanner-container {
  display: none;
  margin: 20px 0;
}

.robot__scanner-container--no-camera .robot__scanner-video {
  display: none;
}

.robot__scanner-container--no-camera .robot__scanner-manual {
  display: flex;
}

.robot__scanner-video {
  border: 1px solid #ddd;
  border-radius: 5px;
  background: #333;
  width: 100%;
}

.robot__scanner-manual {
  display: none;
  gap: 10px;
  margin-top: 10px;
}

.robot__input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  font-size: 1em;
}

.robot__message {
  margin: 20px 0;
  font-weight: bold;
}

/* Return */
.robot__return-section {
  display: none;
  margin: 20px 0;
}

/* Dialog */
.swal2-container {
    font-family: Arial, sans-serif;
    line-height: 1.5;
}