body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  text-align: center;
  margin: 0;
  padding: 20px;
}

.container {
  background: white;
  padding: 30px;
  max-width: 600px;
  margin: auto;
  border-radius: 12px;
  box-shadow: 0 0 15px rgba(0,0,0,0.1);
}

button {
  display: block;
  margin: 10px auto;
  padding: 12px 20px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  background-color: #0074d9;
  color: white;
  cursor: pointer;
  width: 80%;
}

button:hover {
  background-color: #005fa3;
}

#resultado img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin-top: 15px;
}

.hidden {
  display: none;
}