body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #d0eaff, #fbe4ff);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.container {
  width: 90%;
  max-width: 400px;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.2);
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.quiz-card {
  text-align: center;
}

h2 {
  font-weight: 600;
  font-size: 20px;
  margin-bottom: 20px;
}

.options button {
  width: 100%;
  background: rgba(255,255,255,0.5);
  border: none;
  border-radius: 12px;
  margin: 10px 0;
  padding: 12px;
  font-size: 16px;
  cursor: pointer;
  transition: 0.3s ease;
}

.options button:hover {
  background-color: rgba(255,255,255,0.8);
}

#progress {
  text-align: center;
  margin-top: 20px;
  font-weight: 600;
}