body {
  margin: 0;
  padding: 0;
  font-family: 'Arial', sans-serif;
  background: #0d1b2a;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

#quiz-container {
  width: 90%;
  max-width: 1000px;
  text-align: center;
}

h1 {
  font-size: 40px;
  margin-bottom: 30px;
}

#question {
  font-size: 28px;
  margin-bottom: 25px;
}

button.option {
  display: block;
  width: 100%;
  padding: 15px;
  font-size: 20px;
  margin: 10px 0;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background-color: #1b263b;
  color: white;
  transition: background 0.3s;
}

button.option:hover {
  background-color: #415a77;
}

.hidden {
  display: none;
}

#result {
  font-size: 26px;
  margin-top: 40px;
}