* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #eef2ff;
  display: flex;
  justify-content: center;
  padding: 40px 20px;
}

.container {
  background-color: #fff;
  width: 100%;
  max-width: 520px;
  padding: 30px;
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

h1 {
  color: #4338ca;
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 6px;
}

#contador-pergunta {
  text-align: center;
  color: #888;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.pergunta-box h2 {
  font-size: 1.2rem;
  color: #222;
  margin-bottom: 20px;
}

#lista-alternativas {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.alternativa {
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.alternativa:hover {
  background-color: #f3f4ff;
}

.alternativa.selecionada {
  border-color: #4338ca;
  background-color: #e0e7ff;
}

.alternativa.correta {
  border-color: #16a34a;
  background-color: #dcfce7;
}

.alternativa.errada {
  border-color: #dc2626;
  background-color: #fee2e2;
}

#botao-proxima {
  width: 100%;
  padding: 12px;
  background-color: #4338ca;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
}

#botao-proxima:disabled {
  background-color: #c7c7d9;
  cursor: not-allowed;
}

#botao-proxima:not(:disabled):hover {
  background-color: #372ea3;
}