/* ==========================================================================
   MODULE: QUIZ TRẮC NGHIỆM AN TOÀN SỐ & BẢO VỆ DỮ LIỆU (#tab-quiz)
   ========================================================================== */

#tab-quiz {
  padding-top: 50px !important;
  padding-bottom: 80px;
}

.quiz-page-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 36px;
}

.quiz-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(30, 58, 138, 0.08);
  color: #1E3A8A;
  border: 1px solid rgba(30, 58, 138, 0.2);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

/* 1. ROLE SELECTION (Bước 1) */
.quiz-role-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  max-width: 960px;
  margin: 0 auto;
}

.quiz-role-card {
  background: #FFFFFF;
  border-radius: 20px;
  border: 2px solid #E2E8F0;
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
}

.quiz-role-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.1);
}

.quiz-role-card.role-hs:hover {
  border-color: #2563EB;
}

.quiz-role-card.role-gv:hover {
  border-color: #D97706;
}

.role-icon {
  font-size: 44px;
  margin-bottom: 16px;
}

.role-badge {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.role-hs .role-badge {
  color: #2563EB;
}

.role-gv .role-badge {
  color: #D97706;
}

.role-title {
  font-size: 20px;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 12px;
}

.role-desc {
  font-size: 14px;
  color: #64748B;
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.role-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: #475569;
  font-weight: 600;
  padding: 12px 14px;
  background: #F8FAFC;
  border-radius: 10px;
  margin-bottom: 24px;
}

.btn-start-quiz {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 20px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-role-hs {
  background: #2563EB;
  color: #FFFFFF;
}

.btn-role-hs:hover {
  background: #1D4ED8;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.btn-role-gv {
  background: #D97706;
  color: #FFFFFF;
}

.btn-role-gv:hover {
  background: #B45309;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(217, 119, 6, 0.35);
}

/* 2. QUIZ RUNNER (Bước 2) */
.quiz-runner-container {
  max-width: 820px;
  margin: 0 auto;
  background: #FFFFFF;
  border-radius: 24px;
  border: 1px solid #E2E8F0;
  padding: 36px 40px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.quiz-runner-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.quiz-role-tag {
  font-size: 13px;
  font-weight: 800;
  color: #2563EB;
  letter-spacing: 0.5px;
}

.quiz-progress-text {
  font-size: 14px;
  font-weight: 700;
  color: #64748B;
}

.quiz-progress-bar-wrap {
  width: 100%;
  height: 8px;
  background: #F1F5F9;
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 28px;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #2563EB 0%, #38BDF8 100%);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.quiz-question-box {
  margin-bottom: 26px;
}

.q-badge {
  display: inline-block;
  padding: 4px 10px;
  background: #EFF6FF;
  color: #1D4ED8;
  font-size: 11px;
  font-weight: 800;
  border-radius: 6px;
  margin-bottom: 12px;
}

.q-title {
  font-size: 18px;
  font-weight: 700;
  color: #0F172A;
  line-height: 1.55;
}

.quiz-options-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

.quiz-opt-btn {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 16px 20px;
  background: #F8FAFC;
  border: 2px solid #E2E8F0;
  border-radius: 14px;
  font-size: 15px;
  color: #1E293B;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1.5;
}

.quiz-opt-btn:hover {
  background: #EFF6FF;
  border-color: #93C5FD;
}

.quiz-opt-btn.is-selected {
  background: #EFF6FF;
  border-color: #2563EB;
  color: #1E3A8A;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.12);
}

.opt-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: #E2E8F0;
  color: #475569;
  font-weight: 800;
  font-size: 13px;
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.quiz-opt-btn.is-selected .opt-letter {
  background: #2563EB;
  color: #FFFFFF;
}

.quiz-runner-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid #F1F5F9;
}

.btn-quiz-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid #CBD5E1;
  background: #FFFFFF;
  color: #475569;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-quiz-nav:hover:not(:disabled) {
  background: #F8FAFC;
  border-color: #94A3B8;
  color: #0F172A;
}

.btn-quiz-nav:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-quiz-nav.btn-quiz-primary {
  background: #2563EB;
  border-color: #2563EB;
  color: #FFFFFF;
}

.btn-quiz-nav.btn-quiz-primary:hover:not(:disabled) {
  background: #1D4ED8;
  border-color: #1D4ED8;
}

.btn-quiz-exit {
  background: none;
  border: none;
  color: #94A3B8;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s ease;
}

.btn-quiz-exit:hover {
  color: #DC2626;
  text-decoration: underline;
}

/* 3. QUIZ RESULT (Bước 3) */
.quiz-result-container {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.quiz-result-card {
  background: #FFFFFF;
  border-radius: 24px;
  border: 1px solid #E2E8F0;
  padding: 40px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.score-circle-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, #EFF6FF 0%, #DBEAFE 100%);
  border: 4px solid #2563EB;
  margin: 0 auto 20px;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.2);
}

.score-number {
  font-size: 46px;
  font-weight: 900;
  color: #1E3A8A;
  line-height: 1;
}

.score-max {
  font-size: 11px;
  font-weight: 800;
  color: #3B82F6;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.result-badge-banner {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: #DCFCE7;
  color: #15803D;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.result-feedback-title {
  font-size: 22px;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 8px;
}

.result-feedback-desc {
  font-size: 15px;
  color: #475569;
  max-width: 620px;
  margin: 0 auto 24px;
  line-height: 1.6;
}

.result-stats-row {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 28px;
}

.stat-pill {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 12px;
  padding: 10px 18px;
  font-size: 13px;
  color: #64748B;
}

.stat-val {
  font-weight: 800;
  color: #0F172A;
  margin-right: 4px;
}

.result-actions-row {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.btn-result-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-retake {
  background: #2563EB;
  color: #FFFFFF;
  border: none;
}

.btn-retake:hover {
  background: #1D4ED8;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-change-role {
  background: #FFFFFF;
  color: #475569;
  border: 1px solid #CBD5E1;
}

.btn-change-role:hover {
  background: #F8FAFC;
  color: #0F172A;
  border-color: #94A3B8;
}

/* 4. REVIEW SECTION */
.quiz-review-section {
  background: #FFFFFF;
  border-radius: 24px;
  border: 1px solid #E2E8F0;
  padding: 36px 40px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
}

.quiz-review-heading {
  font-size: 18px;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid #F1F5F9;
}

.quiz-review-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.review-item {
  border-radius: 16px;
  border: 1px solid #E2E8F0;
  padding: 22px;
  background: #F8FAFC;
}

.review-item.is-correct-item {
  border-left: 5px solid #16A34A;
}

.review-item.is-wrong-item {
  border-left: 5px solid #DC2626;
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.review-q-num {
  font-size: 13px;
  font-weight: 800;
  color: #475569;
}

.review-status-tag {
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 6px;
}

.is-correct-item .review-status-tag {
  background: #DCFCE7;
  color: #16A34A;
}

.is-wrong-item .review-status-tag {
  background: #FEE2E2;
  color: #DC2626;
}

.review-q-title {
  font-size: 15px;
  font-weight: 700;
  color: #0F172A;
  margin-bottom: 14px;
}

.review-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.review-opt {
  font-size: 13.5px;
  padding: 8px 12px;
  border-radius: 8px;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  color: #475569;
}

.review-opt.is-user-choice {
  border-color: #DC2626;
  background: #FEF2F2;
  color: #991B1B;
}

.review-opt.is-correct-choice {
  border-color: #16A34A;
  background: #F0FDF4;
  color: #166534;
  font-weight: 600;
}

.review-explanation {
  background: #FFFFFF;
  border: 1px dashed #CBD5E1;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 13px;
  color: #334155;
  line-height: 1.6;
}

.review-explanation strong {
  color: #1E3A8A;
}

@media (max-width: 768px) {
  .quiz-role-container {
    grid-template-columns: 1fr;
  }
  .quiz-runner-container, .quiz-result-card, .quiz-review-section {
    padding: 24px 20px;
  }
  .result-actions-row {
    flex-direction: column;
  }
  .btn-result-action {
    width: 100%;
    justify-content: center;
  }
}