body {
  font-family: Arial, sans-serif;
  background: linear-gradient(to right, #74ebd5, #9face6);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  margin: 0;
}

.card {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  width: 350px;
  text-align: center;
}

input {
  width: 90%;
  padding: 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 16px;
}

button {
  padding: 10px 20px;
  border: none;
  background: #6c63ff;
  color: white;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background: #5146d6;
}

#resultado {
  margin-top: 15px;
  font-weight: bold;
  color: #333;
}