body {
  font-family: Arial, sans-serif;
  background-color: #f3f3f3;
  display: flex;
  justify-content: center;
  padding: 40px;
}

.container {
  background: #fff;
  padding: 20px 30px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  width: 400px;
}

h1 {
  text-align: center;
  margin-bottom: 20px;
}

label, select, input, button {
  display: block;
  width: 100%;
  margin-bottom: 10px;
}

input, select {
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

button {
  background-color: #3498db;
  color: white;
  padding: 10px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

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

#resultados {
  margin-top: 15px;
}