body {
  font-family: Arial, sans-serif;
  background: #fafafa;
  margin: 0;
  padding: 30px;
}

.container {
  max-width: 600px;
  margin: auto;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  padding: 20px;
}

h1 {
  text-align: center;
}

input, button {
  width: 100%;
  margin: 5px 0;
  padding: 10px;
  box-sizing: border-box;
}

button {
  background-color: #007bff;
  border: none;
  color: white;
  cursor: pointer;
  border-radius: 5px;
}

button:hover {
  background-color: #0056b3;
}

#saida {
  margin-top: 20px;
  background: #f4f4f4;
  padding: 10px;
  border-radius: 5px;
  min-height: 100px;
}