body {
  font-family: Arial, sans-serif;
  background-color: #f5f7fa;
  text-align: center;
  margin: 0;
  padding: 40px;
}

.quiz-container {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

#questionText {
  font-size: 1.2em;
  margin-bottom: 20px;
}

.choice {
  display: block;
  background-color: #e9eff7;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  padding: 10px;
  margin: 8px auto;
  max-width: 80%;
  cursor: pointer;
  transition: background 0.2s;
}

.choice:hover {
  background-color: #d0e2ff;
}

.choice.correct {
  background-color: #b6f2b6;
}

.choice.incorrect {
  background-color: #f8b6b6;
}

button {
  background-color: #0078d7;
  color: white;
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  margin-top: 20px;
  cursor: pointer;
}

button:hover {
  background-color: #005fa3;
}

.hidden {
  display: none;
}