body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background-color: #f4f6f8;
}

.header {
  background: linear-gradient(90deg, #001f3f, #0074e4);
  color: white;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.voltarBtn {
  background-color: #fc0;
  color: rgb(0, 0, 0);
  padding: 8px 14px;
  border-radius: 6px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.3s ease;
}
.voltarBtn:hover {
  background-color: #fc0;
  color: white;
}

.quiz-container {
  max-width: 800px;
  margin: 40px auto;
  background-color: white;
  padding: 28px 32px;
  border-radius: 12px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  animation: fadeIn 0.3s ease-in-out;
}

.question {
  margin-bottom: 24px;
  padding: 16px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background-color: #f9fafb;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.question:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.06);
}

.question h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: #111827;
}

.options-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.option {
  font-size: 0.95rem;
  color: #374151;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s ease;
}
.option:hover {
  background-color: #e0e7ff;
}

.option input[type="radio"] {
  accent-color: #2563eb;
  margin-right: 8px;
}

#submit-quiz {
  background-color: #facc15;
  color: #1f2937;
  border: none;
  padding: 14px 24px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: block;
  margin: 28px auto 0;
  transition: background 0.3s ease, transform 0.2s ease;
}
#submit-quiz:hover {
  background-color: #eab308;
  transform: translateY(-2px);
}

footer {
  background: linear-gradient(135deg, #001f3f, #0074e4);
  color: white;
  padding: 24px 20px;
  text-align: center;
  margin-top: 40px;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

.footer-conteudo {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  justify-content: center;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: #ffffff;
  font-weight: 900;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #00ff00;
}
#quiz-result {
  margin-top: 20px;
  padding: 12px;
  border-radius: 8px;
  font-weight: bold;
  text-align: center;
  display: none; /* escondido até mostrar resultado */
}

.result-success {
  background-color: #d1fae5;
  color: #065f46;
  border: 1px solid #10b981;
}

.result-error {
  background-color: #fee2e2;
  color: #991b1b;
  border: 1px solid #ef4444;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
/* Responsividade */
@media (max-width: 768px) {
  .quiz-container {
    padding: 20px;
    margin: 20px;
  }

  .question h3 {
    font-size: 1rem;
  }

  #submit-quiz {
    width: 100%;
    padding: 12px;
  }

  .voltarBtn {
    width: auto; /* deixa o tamanho do texto */
    padding: 8px 12px;
    font-size: 0.9rem;
    display: inline-block; /* garante que ele não quebre */
    text-align: center;
  }

  /* Se precisar alinhar o botão à direita */
  .header-quiz {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* permite quebrar linha em telas muito pequenas */
  }
}