body {
  font-family: Arial, sans-serif;
  margin: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #f9f9f9;
}

#result {
  margin-top: 20px;
  font-size: 1.5rem;
  color: #2ecc71;
  font-weight: bold;
  text-align: center;
  word-wrap: break-word;
  max-width: 90vw;
}

.video-box {
  width: 90vw;
  max-width: 700px;
  aspect-ratio: 16 / 9;
  border: 2px solid #ddd;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  background: white;
  position: relative;
}

.video-box video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

canvas {
  display: none;
}

#overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#cropBox {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60%;
  max-width: 90vw;
  aspect-ratio: 16 / 9;
  border: 2px dashed red;
  box-sizing: border-box;
  transform: translate(-50%, -50%);
  animation: dash 2s linear infinite;
}

#cameraStatus {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.25rem;
  font-weight: bold;
  color: #555;
  background: rgba(255, 255, 255, 0.8);
  padding: 10px 20px;
  border-radius: 8px;
  text-align: center;
}

#back-button {
  margin-top: 20px;
  padding: 10px 20px;
  text-decoration: none;
  background-color: #3498db;
  color: white;
  border-radius: 8px;
  font-weight: bold;
  transition: background-color 0.3s;
  font-size: 1rem;
}

#back-button:hover {
  background-color: #2980b9;
}

@keyframes dash {
  to {
    border-color: red;
    border-style: dashed;
  }
}

#deviceSelector {
  margin: 20px 0;
  font-size: 16px;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

.reload-btn {
  padding: 10px 20px;
  font-size: 1.5rem;
  background-color: #007bff;
  color: white;
  text-decoration: none;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  transition: background-color 0.3s ease;
}

/* --- MEDIA QUERIES --- */
@media (max-width: 600px) {
  body {
    margin: 10px;
  }

  #result {
    font-size: 2rem;
  }

  #cameraStatus {
    font-size: 1rem;
    padding: 8px 16px;
  }

  #back-button {
    font-size: 0.9rem;
    padding: 8px 16px;
  }

  #cropBox {
    width: 80%;
  }
}