body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  text-align: center;
  width: 320px;
}

h2 {
  margin-top: 0;
}

#previewBox {
  width: 300px;
  height: 300px;
  background: white url("./assets/camera.png") center/40% no-repeat; /* camera placeholder */
  border-radius: 8px;
  margin: 15px auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

#preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

.hidden {
  display: none;
}

input[type="file"] {
  margin: 15px 0;
}

button {
  padding: 10px 20px;
  background: #0078ff;
  border: none;
  color: white;
  font-size: 16px;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
}

button:hover {
  background: #005fcc;
}

.result {
  margin-top: 20px;
  padding: 12px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: bold;
}