.pkh-quiz-app {
  max-width: 800px;
  margin: 0 auto;
  font-family: inherit;
}
.pkh-quiz-progress {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 14px;
  color: #555;
}
.pkh-quiz-progressbar {
  height: 6px;
  background: #e5e7eb;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 24px;
}
.pkh-quiz-progressbar-fill {
  height: 100%;
  background: #0d9488;
  transition: width 0.3s;
}
.pkh-quiz-card {
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 24px;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.pkh-quiz-question {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 20px;
  color: #111;
}
.pkh-quiz-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pkh-quiz-option {
  text-align: left;
  padding: 13px 16px;
  border: 2px solid #0d9488;
  border-radius: 8px;
  background: #fff;
  color: #0d9488;
  font-size: 16px;
  cursor: pointer;
  transition: 0.2s;
  font-family: inherit;
}
.pkh-quiz-option:hover:not(:disabled) {
  background: #f0fdfa;
}
.pkh-quiz-option.correct {
  background: #0d9488;
  color: #fff;
  border-color: #0d9488;
}
.pkh-quiz-option.wrong {
  background: #fee2e2;
  color: #b91c1c;
  border-color: #b91c1c;
}
.pkh-quiz-option:disabled {
  cursor: not-allowed;
  opacity: 0.9;
}
.pkh-quiz-feedback {
  margin-top: 14px;
  font-weight: 600;
  font-size: 15px;
  min-height: 20px;
}
.pkh-quiz-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 22px;
  gap: 12px;
}
.pkh-quiz-nav button {
  flex: 1;
  padding: 12px 20px;
  border-radius: 8px;
  border: 2px solid #0d9488;
  background: #0d9488;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.pkh-quiz-nav button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pkh-quiz-nav button.pkh-quiz-prev {
  background: #fff;
  color: #0d9488;
}
.pkh-quiz-jump {
  margin-top: 16px;
  text-align: center;
  font-size: 14px;
  color: #666;
}
.pkh-quiz-jump input {
  width: 60px;
  padding: 6px 8px;
  border: 1px solid #ccc;
  border-radius: 6px;
  text-align: center;
  margin: 0 6px;
}
.pkh-quiz-explanation {
  margin-top: 14px;
  padding: 12px 14px;
  background: #f0fdfa;
  border-left: 3px solid #0d9488;
  border-radius: 6px;
  font-size: 14px;
  color: #333;
  line-height: 1.5;
}