* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background-color: #111;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.container {
  background-color: #1e1e1e;
  padding: 30px;
  border-radius: 10px;
  width: 300px;
  text-align: center;
}

h1 {
  margin-bottom: 20px;
}

input, select {
  width: 100%;
  padding: 8px;
  margin-bottom: 10px;
  border-radius: 5px;
  border: none;
}

button {
  width: 100%;
  padding: 10px;
  background-color: #e63946;
  color: #fff;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background-color: #c1121f;
}

#resultado {
  margin-top: 15px;
  font-weight: bold;
}