.quiz-card {
  background: #eaefff;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.05);
  max-width: 800px;
  margin: auto;
}

.quiz-header {
  border-bottom: 1px solid #acc4e2;
  padding-bottom: 10px;
  margin-bottom: 20px;
}

.quiz-header h1 {
  font-size: 24px;
  font-weight: bold;
  color: #6f42c1;
}

.quiz-intro {
  font-size: 15px;
  color: #555;
}

.quiz-title {
  font-weight: bold;
  font-size: 1.3rem;
  color: #6f42c1;
}

.list-group-item, .list-group-item-b21 {
  border: 1px solid #c2c7d0;
  border-radius: 6px;
  background-color: #fff;
  padding: 10px 14px;
  margin-bottom: 10px;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  cursor: move;
  user-select: none;
  white-space: pre-line;
  line-height: 1.4;
}

.list-group-item-b21.dragging {
  opacity: 0.6;
  background-color: #dbeafe;
  border-style: dashed;
}

.feedback {
  padding: 15px;
  border-radius: 6px;
  margin-top: 10px;
  font-weight: 500;
  font-size: 1rem;
}

.feedback.correct {
  background-color: #d1e7dd;
  color: #0f5132;
}

.feedback.incorrect {
  background-color: #f8d7da;
  color: #842029;
}

.btn-next, .btn-back {
  all: unset;
  display: inline-block;
  padding: 10px 20px;
  margin-top: 20px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  text-align: center;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.btn-next {
  background-color: #6f42c1;
  color: #fff;
}

.btn-next:hover {
  background-color: #59359c;
}

.btn-back {
  background-color: #adb5bd;
  color: #fff;
  margin-right: 10px;
}

.btn-back:hover {
  background-color: #949ba2;
}

.btn-ulang-aktif {
  background-color: #6f42c1 !important; /* warna kuning/oranye misalnya */
  color: #ffffff;
  border-color: #6f42c1;
}

.btn-ulang-aktif:hover {
  background-color: #59359c;
}