body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f9;
  color: #333;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}
.quiz-container {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  width: 90%;
  max-width: 600px;
  padding: 20px;
  text-align: center;
}
.question {
  font-size: 1.2em;
  margin-bottom: 20px;
}
.options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.option {
  padding: 10px;
  border: 2px solid #ccc;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s, color 0.3s;
}
.option:hover {
  background-color: #007bff;
  color: #fff;
}
.timer {
  font-size: 1.2em;
  margin-bottom: 20px;
  color: #ff5722;
}
.result {
  font-size: 1.5em;
  color: #4caf50;
}
.restart-btn {
  background-color: #007bff;
  color: #fff;
  border: none;
  padding: 10px 20px;
  font-size: 1em;
  border-radius: 8px;
  cursor: pointer;
  margin-top: 20px;
}
.restart-btn:hover {
  background-color: #0056b3;
}
