body {
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background: white;
  padding: 30px;
  border-radius: 15px;
  width: 380px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

h1 {
  margin-bottom: 15px;
}

input {
  width: 95%;
  padding: 10px;
  margin: 6px 0;
  border-radius: 8px;
  border: 1px solid #ccc;
}

button {
  padding: 10px;
  margin: 5px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: #2a5298;
  color: white;
  transition: 0.3s;
}

button:hover {
  background: #1e3c72;
}

.botoes {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

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