/* 전체 배경 */
body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: sans-serif;
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)),
              url(../IMAGE/유포리아.png);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: white;
  display: flex;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
}

/* 퀴즈 박스 */
.quiz-container {
  background: rgba(0, 0, 0, 0.7);
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.3);
  width: 90%;
  max-width: 600px;
}

/* 시작 버튼 */
.start-btn {
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border: none;
  padding: 15px 30px;
  font-size: 1.3rem;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.3s ease;
  margin-top: 2rem;
}

.start-btn:hover {
  transform: scale(1.1);
  background-color: rgba(255, 255, 255, 0.25);
}

/* 선택지 버튼 */
.choice-btn {
  display: block;
  width: 100%;
  margin: 0.6rem 0;
  padding: 1rem;
  font-size: 1.1rem;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: none;
  border-radius: 8px;
  transition: transform 0.2s ease, background-color 0.3s ease;
}

.choice-btn:hover {
  transform: scale(1.05);
  background-color: rgba(255, 255, 255, 0.2);
}

.choice-btn.selected {
  background-color: #ccc;
  color: #000;
}