* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Arial', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
}

.quiz-container {
  background: white;
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  max-width: 600px;
  width: 100%;
}

h1 {
  text-align: center;
  color: #333;
  margin-bottom: 10px;
  font-size: 28px;
}

.progress {
  text-align: center;
  color: #666;
  font-size: 14px;
  margin-bottom: 20px;
}

.question-text {
  font-size: 20px;
  color: #333;
  margin-bottom: 25px;
  font-weight: 500;
}

.answers-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
}

.answer-btn {
  padding: 15px 20px;
  border: 2px solid #ddd;
  background: #f8f9fa;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.3s ease;
  text-align: left;
}

.answer-btn:hover {
  background: #e9ecef;
  border-color: #667eea;
}

.answer-btn.selected {
  background: #667eea;
  color: white;
  border-color: #667eea;
}

#next-btn, .btn-restart {
  background: #667eea;
  color: white;
  padding: 12px 40px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: bold;
  transition: background 0.3s ease;
  width: 100%;
  margin-top: 15px;
}

#next-btn:hover:not(:disabled), .btn-restart:hover {
  background: #764ba2;
}

#next-btn:disabled {
  background: #ccc;
  cursor: not-allowed;
}

.score-container {
  text-align: center;
}

.score-container h2 {
  color: #667eea;
  font-size: 32px;
  margin-bottom: 20px;
}

.score-container p {
  font-size: 18px;
  color: #333;
  margin-bottom: 15px;
}

#final-score {
  font-weight: bold;
  color: #667eea;
  font-size: 24px;
}

#score-message {
  font-size: 16px;
  color: #666;
  margin-bottom: 30px !important;
  font-style:;
}