body {
  font-family: sans-serif;
  background: #f5f5f5;
  margin: 0;
}
.container {
  max-width: 600px;
  margin: auto;
  padding: 2rem;
  background: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
label {
  display: block;
  margin-top: 10px;
}
input {
  width: 100%;
  padding: 8px;
  margin-top: 4px;
}
button {
  margin-top: 15px;
  padding: 10px;
  font-size: 16px;
  margin-right: 10px;
}
#resultados {
  margin-top: 20px;
  padding: 10px;
  background: #e9f0ff;
  border: 1px solid #b6d0ff;
  border-radius: 6px;
}