body {
  font-family: 'Arial', sans-serif;
  background: linear-gradient(to right, #ff9a9e, #fad0c4);
  color: #333;
  margin: 0;
  padding: 0;
}

.caixa-principal {
  max-width: 600px;
  margin: 40px auto;
  padding: 20px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  transition: opacity 0.3s ease-in-out;
}

h1 {
  text-align: center;
  color: #d7263d;
}

.caixa-progresso {
  text-align: center;
  font-weight: bold;
  margin-bottom: 20px;
}

.caixa-perguntas {
  font-size: 18px;
  margin-bottom: 20px;
}

.caixa-alternativas button {
  display: block;
  width: 100%;
  margin: 10px 0;
  padding: 12px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  background-color: #f67280;
  color: white;
  cursor: pointer;
  transition: background-color 0.3s;
}

.caixa-alternativas button:hover {
  background-color: #c06c84;
}

.caixa-resultado {
  font-size: 18px;
  margin-top: 20px;
}

.botao-reiniciar {
  margin-top: 20px;
  padding: 10px 20px;
  background-color: #6c5b7b;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}