/* ============================================
   DEX Specialization — Certification Exam Styles
   Supplements styles.css
   ============================================ */

/* ---- CSS Variables ---- */
:root {
  --exam-primary: #1B2A4A;
  --exam-red: #E2231A;
  --exam-success: #27ae60;
  --exam-danger: #e74c3c;
  --exam-warning: #f39c12;
  --exam-info: #3498db;
  --exam-bg: #f0f2f5;
  --exam-card: #ffffff;
  --exam-text: #2c3e50;
  --exam-text-light: #7f8c8d;
  --exam-border: #e1e8ed;
  --exam-nav-unanswered: #e1e8ed;
  --exam-nav-answered: #3498db;
  --exam-nav-flagged: #f39c12;
  --exam-nav-current: #27ae60;
  --exam-radius: 10px;
  --exam-shadow: 0 2px 12px rgba(0,0,0,0.08);
  --exam-shadow-lg: 0 8px 30px rgba(0,0,0,0.15);
}

/* ---- Reset & Full-Page Exam Layout ---- */
body.exam-mode {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  font-family: 'Segoe UI', 'Calibri', Arial, sans-serif;
  background: var(--exam-bg);
  color: var(--exam-text);
  line-height: 1.6;
}

body.exam-mode * {
  box-sizing: border-box;
}

/* Hide sidebar from main site */
body.exam-mode .sidebar,
body.exam-mode .app-container {
  display: none !important;
}

.exam-section {
  display: none;
}
.exam-section.active {
  display: block;
}

/* ---- Back to Training Link ---- */
.exam-back-link {
  position: fixed;
  top: 16px;
  left: 20px;
  z-index: 100;
  color: var(--exam-primary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 6px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border: 1px solid var(--exam-border);
  transition: all 0.2s ease;
}
.exam-back-link:hover {
  background: var(--exam-primary);
  color: #fff;
}
.exam-back-link .arrow {
  font-size: 18px;
}

/* ============================================
   PRE-EXAM SCREEN
   ============================================ */
#preExam {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, #1B2A4A 0%, #2d4a7a 100%);
}
#preExam.active {
  display: flex;
}

.pre-exam-card {
  background: var(--exam-card);
  border-radius: var(--exam-radius);
  box-shadow: var(--exam-shadow-lg);
  max-width: 680px;
  width: 100%;
  padding: 40px;
  color: var(--exam-text);
}

.pre-exam-card h1 {
  font-size: 22px;
  color: var(--exam-primary);
  margin-bottom: 4px;
  line-height: 1.3;
}

.pre-exam-card .exam-subtitle {
  color: var(--exam-text-light);
  font-size: 14px;
  margin-bottom: 24px;
}

.exam-info-box {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.exam-info-item {
  background: #f8f9fb;
  border-radius: 8px;
  padding: 14px 12px;
  text-align: center;
  border: 1px solid var(--exam-border);
}
.exam-info-item .info-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--exam-primary);
  display: block;
}
.exam-info-item .info-label {
  font-size: 11px;
  color: var(--exam-text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pre-exam-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.pre-exam-inputs label {
  font-size: 13px;
  font-weight: 600;
  color: var(--exam-text);
  display: block;
  margin-bottom: 4px;
}

.pre-exam-inputs input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--exam-border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  transition: border 0.2s;
}
.pre-exam-inputs input:focus {
  border-color: var(--exam-info);
}

.exam-rules {
  background: #fef9e7;
  border: 1px solid #f9e79f;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 20px;
}
.exam-rules h3 {
  font-size: 14px;
  color: var(--exam-warning);
  margin-bottom: 8px;
}
.exam-rules ol {
  padding-left: 20px;
  margin: 0;
}
.exam-rules li {
  font-size: 13px;
  color: #555;
  margin-bottom: 4px;
  line-height: 1.5;
}

.exam-terms {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: #f8f9fb;
  border-radius: 8px;
}
.exam-terms input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--exam-primary);
}
.exam-terms label {
  font-size: 13px;
  color: #555;
  cursor: pointer;
  line-height: 1.5;
}

.btn-begin-exam {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: var(--exam-primary);
  color: #fff;
  transition: all 0.2s;
}
.btn-begin-exam:disabled {
  background: #bdc3c7;
  cursor: not-allowed;
}
.btn-begin-exam:not(:disabled):hover {
  background: #2d4a7a;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(27,42,74,0.3);
}

/* ============================================
   EXAM SCREEN
   ============================================ */
#examScreen {
  height: 100vh;
  display: flex;
  flex-direction: column;
}
#examScreen.active {
  display: flex;
}

/* ---- Timer Bar ---- */
.exam-timer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: var(--exam-primary);
  color: #fff;
  font-size: 14px;
  flex-shrink: 0;
  z-index: 50;
}

.timer-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.timer-back-link {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}
.timer-back-link:hover {
  color: #fff;
}

.timer-clock {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 18px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 6px;
  background: rgba(255,255,255,0.15);
  min-width: 80px;
  text-align: center;
}
.timer-clock.warning {
  background: var(--exam-warning);
  color: #000;
  animation: timerPulse 1s infinite;
}
.timer-clock.danger {
  background: var(--exam-danger);
  color: #fff;
  animation: timerPulse 0.5s infinite;
}

@keyframes timerPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.timer-center {
  font-weight: 600;
  font-size: 15px;
}

.timer-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-flag {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1.5px solid rgba(255,255,255,0.3);
  background: transparent;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}
.btn-flag:hover {
  border-color: var(--exam-warning);
  color: var(--exam-warning);
}
.btn-flag.flagged {
  background: var(--exam-warning);
  border-color: var(--exam-warning);
  color: #000;
}

.btn-review {
  padding: 6px 16px;
  border-radius: 6px;
  border: none;
  background: var(--exam-success);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-review:hover {
  background: #219a52;
}

/* ---- Exam Body (nav + question) ---- */
.exam-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ---- Nav Panel ---- */
.exam-nav-panel {
  width: 260px;
  background: #fff;
  border-right: 1px solid var(--exam-border);
  padding: 20px;
  overflow-y: auto;
  flex-shrink: 0;
}

.nav-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--exam-border);
}
.nav-legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--exam-text-light);
}
.nav-legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  border: 2px solid transparent;
}
.nav-legend-dot.unanswered { background: var(--exam-nav-unanswered); }
.nav-legend-dot.answered { background: var(--exam-nav-answered); }
.nav-legend-dot.flagged { background: var(--exam-nav-flagged); }
.nav-legend-dot.current { background: transparent; border-color: var(--exam-nav-current); }

.nav-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}

.nav-btn {
  width: 100%;
  aspect-ratio: 1;
  border: 2px solid transparent;
  border-radius: 6px;
  background: var(--exam-nav-unanswered);
  color: var(--exam-text);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.nav-btn.answered {
  background: var(--exam-nav-answered);
  color: #fff;
}
.nav-btn.flagged {
  background: var(--exam-nav-flagged);
  color: #fff;
}
.nav-btn.current {
  border-color: var(--exam-nav-current);
  box-shadow: 0 0 0 2px rgba(39,174,96,0.3);
}

/* ---- Question Panel ---- */
.exam-question-panel {
  flex: 1;
  padding: 30px 40px;
  overflow-y: auto;
}

.question-card {
  max-width: 780px;
  margin: 0 auto;
}

.question-module-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}
.question-module-badge.performance {
  background: #eaf2fd;
  color: #2d4a7a;
}
.question-module-badge.investigate {
  background: #fdeaea;
  color: #c0392b;
}

.question-type-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  background: #f0f2f5;
  color: var(--exam-text-light);
  margin-left: 8px;
}

.question-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--exam-text);
  margin-bottom: 8px;
  line-height: 1.5;
}

.question-context {
  background: #f8f9fb;
  border-left: 3px solid var(--exam-info);
  padding: 14px 18px;
  margin-bottom: 20px;
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  color: #555;
  line-height: 1.6;
}

.question-instruction {
  font-size: 13px;
  color: var(--exam-text-light);
  margin-bottom: 16px;
  font-style: italic;
}

/* ---- Answer Options (Card Style) ---- */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.option-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  border: 2px solid var(--exam-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  background: #fff;
}
.option-card:hover {
  border-color: var(--exam-info);
  background: #f8fbff;
}
.option-card.selected {
  border-color: var(--exam-info);
  background: #ebf5fb;
}
.option-card.selected .option-indicator {
  background: var(--exam-info);
  border-color: var(--exam-info);
  color: #fff;
}

.option-indicator {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  border: 2px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #999;
  transition: all 0.2s;
  margin-top: 1px;
}
.option-card[data-type="multi"] .option-indicator {
  border-radius: 5px;
}

.option-text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--exam-text);
  flex: 1;
}

/* ---- Bottom Navigation ---- */
.question-nav-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--exam-border);
}

.btn-prev, .btn-next {
  padding: 10px 24px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-prev {
  background: #f0f2f5;
  color: var(--exam-text);
}
.btn-prev:hover {
  background: #e1e8ed;
}
.btn-prev:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-next {
  background: var(--exam-primary);
  color: #fff;
}
.btn-next:hover {
  background: #2d4a7a;
}

/* ============================================
   REVIEW SCREEN
   ============================================ */
#reviewScreen {
  min-height: 100vh;
  padding: 40px;
  background: var(--exam-bg);
}
#reviewScreen.active {
  display: block;
}

.review-container {
  max-width: 800px;
  margin: 0 auto;
}

.review-header {
  text-align: center;
  margin-bottom: 30px;
}
.review-header h2 {
  font-size: 24px;
  color: var(--exam-primary);
  margin-bottom: 6px;
}
.review-header p {
  color: var(--exam-text-light);
  font-size: 14px;
}

.review-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 30px;
}

.review-stat {
  background: #fff;
  border-radius: var(--exam-radius);
  padding: 20px;
  text-align: center;
  box-shadow: var(--exam-shadow);
}
.review-stat .stat-num {
  font-size: 32px;
  font-weight: 800;
  display: block;
}
.review-stat .stat-label {
  font-size: 13px;
  color: var(--exam-text-light);
}
.review-stat.answered .stat-num { color: var(--exam-nav-answered); }
.review-stat.unanswered .stat-num { color: var(--exam-danger); }
.review-stat.flagged .stat-num { color: var(--exam-nav-flagged); }

.review-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
  margin-bottom: 30px;
  background: #fff;
  padding: 24px;
  border-radius: var(--exam-radius);
  box-shadow: var(--exam-shadow);
}

.review-grid .nav-btn {
  aspect-ratio: 1;
  font-size: 14px;
}

.btn-submit-exam {
  display: block;
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
  padding: 16px;
  font-size: 17px;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  background: var(--exam-success);
  color: #fff;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-submit-exam:hover {
  background: #219a52;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(39,174,96,0.3);
}

.btn-return-exam {
  display: block;
  text-align: center;
  margin-top: 14px;
  color: var(--exam-info);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: none;
  border: none;
  text-decoration: underline;
}

/* ============================================
   CONFIRM SUBMIT MODAL
   ============================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(3px);
}
.modal-overlay.active {
  display: flex;
}

.modal-card {
  background: #fff;
  border-radius: var(--exam-radius);
  padding: 32px;
  max-width: 440px;
  width: 90%;
  text-align: center;
  box-shadow: var(--exam-shadow-lg);
}

.modal-card h3 {
  font-size: 20px;
  color: var(--exam-text);
  margin-bottom: 10px;
}
.modal-card p {
  font-size: 14px;
  color: var(--exam-text-light);
  margin-bottom: 24px;
  line-height: 1.6;
}

.modal-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
}
.modal-btns button {
  padding: 10px 28px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-modal-cancel {
  background: #f0f2f5;
  color: var(--exam-text);
}
.btn-modal-cancel:hover {
  background: #e1e8ed;
}
.btn-modal-submit {
  background: var(--exam-danger);
  color: #fff;
}
.btn-modal-submit:hover {
  background: #c0392b;
}

/* ============================================
   RESULTS SCREEN
   ============================================ */
#resultsScreen {
  min-height: 100vh;
  padding: 40px 20px;
  background: var(--exam-bg);
}
#resultsScreen.active {
  display: block;
}

.results-container {
  max-width: 860px;
  margin: 0 auto;
}

.results-hero {
  text-align: center;
  padding: 40px;
  background: #fff;
  border-radius: var(--exam-radius);
  box-shadow: var(--exam-shadow);
  margin-bottom: 24px;
}

.results-score {
  font-size: 56px;
  font-weight: 900;
  color: var(--exam-primary);
  line-height: 1.1;
}
.results-percentage {
  font-size: 20px;
  color: var(--exam-text-light);
  font-weight: 600;
  margin-bottom: 16px;
}

.results-badge {
  display: inline-block;
  padding: 8px 28px;
  border-radius: 30px;
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.results-badge.passed {
  background: #eafaf1;
  color: var(--exam-success);
  border: 2px solid var(--exam-success);
}
.results-badge.failed {
  background: #fdedec;
  color: var(--exam-danger);
  border: 2px solid var(--exam-danger);
}

.results-time {
  margin-top: 12px;
  font-size: 14px;
  color: var(--exam-text-light);
}

/* Module Breakdown */
.results-breakdown {
  background: #fff;
  border-radius: var(--exam-radius);
  padding: 24px;
  box-shadow: var(--exam-shadow);
  margin-bottom: 24px;
}
.results-breakdown h3 {
  font-size: 16px;
  color: var(--exam-primary);
  margin-bottom: 16px;
}

.breakdown-table {
  width: 100%;
  border-collapse: collapse;
}
.breakdown-table th,
.breakdown-table td {
  padding: 10px 14px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--exam-border);
}
.breakdown-table th {
  font-weight: 700;
  color: var(--exam-text-light);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.breakdown-bar {
  height: 8px;
  border-radius: 4px;
  background: #ecf0f1;
  position: relative;
  min-width: 100px;
}
.breakdown-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s ease;
}
.breakdown-bar-fill.good { background: var(--exam-success); }
.breakdown-bar-fill.bad { background: var(--exam-danger); }
.breakdown-bar-fill.mid { background: var(--exam-warning); }

/* Answer Review */
.results-review {
  background: #fff;
  border-radius: var(--exam-radius);
  padding: 24px;
  box-shadow: var(--exam-shadow);
  margin-bottom: 24px;
}
.results-review h3 {
  font-size: 16px;
  color: var(--exam-primary);
  margin-bottom: 16px;
}

.review-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--exam-border);
}
.review-item:last-child {
  border-bottom: none;
}

.review-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.review-q-num {
  font-weight: 700;
  font-size: 13px;
  color: var(--exam-text-light);
  min-width: 28px;
}

.review-result-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: #fff;
  font-weight: 700;
}
.review-result-icon.correct {
  background: var(--exam-success);
}
.review-result-icon.incorrect {
  background: var(--exam-danger);
}

.review-q-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--exam-text);
  flex: 1;
}

.review-answers {
  padding-left: 38px;
  font-size: 13px;
}
.review-your-answer {
  color: var(--exam-text-light);
  margin-bottom: 2px;
}
.review-correct-answer {
  color: var(--exam-success);
  font-weight: 600;
  margin-bottom: 4px;
}
.review-explanation {
  color: #555;
  font-style: italic;
  background: #f8f9fb;
  padding: 8px 12px;
  border-radius: 6px;
  margin-top: 6px;
  line-height: 1.5;
}

/* Results Buttons */
.results-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-print-cert {
  padding: 12px 28px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  background: var(--exam-success);
  color: #fff;
  transition: all 0.2s;
}
.btn-print-cert:hover {
  background: #219a52;
}

.btn-retake {
  padding: 12px 28px;
  border-radius: 8px;
  border: 2px solid var(--exam-primary);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  background: #fff;
  color: var(--exam-primary);
  transition: all 0.2s;
}
.btn-retake:hover {
  background: var(--exam-primary);
  color: #fff;
}

.btn-back-training {
  padding: 12px 28px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  background: #f0f2f5;
  color: var(--exam-text);
  text-decoration: none;
  transition: all 0.2s;
}
.btn-back-training:hover {
  background: #e1e8ed;
}

/* ============================================
   TIME WARNING MODAL
   ============================================ */
#timeWarning .modal-card {
  border-top: 4px solid var(--exam-warning);
}
#timeWarning .modal-card h3 {
  color: var(--exam-warning);
}

.time-warning-icon {
  font-size: 40px;
  margin-bottom: 8px;
}

/* ============================================
   TAB AWAY WARNING
   ============================================ */
#tabWarning {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
}
#tabWarning.active {
  display: flex;
}

.tab-warning-card {
  background: #fff;
  border-radius: var(--exam-radius);
  padding: 36px;
  max-width: 460px;
  width: 90%;
  text-align: center;
  border-top: 4px solid var(--exam-danger);
}
.tab-warning-card h3 {
  color: var(--exam-danger);
  font-size: 20px;
  margin-bottom: 10px;
}
.tab-warning-card p {
  font-size: 14px;
  color: var(--exam-text-light);
  margin-bottom: 8px;
  line-height: 1.6;
}
.tab-warning-count {
  font-size: 28px;
  font-weight: 800;
  color: var(--exam-danger);
  margin: 10px 0 16px;
}

.btn-tab-dismiss {
  padding: 10px 32px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  font-weight: 700;
  background: var(--exam-primary);
  color: #fff;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-tab-dismiss:hover {
  background: #2d4a7a;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .exam-nav-panel {
    width: 200px;
    padding: 14px;
  }
  .nav-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .exam-question-panel {
    padding: 20px;
  }
}

@media (max-width: 700px) {
  .exam-info-box {
    grid-template-columns: repeat(2, 1fr);
  }
  .pre-exam-inputs {
    grid-template-columns: 1fr;
  }
  .pre-exam-card {
    padding: 24px;
  }
  .exam-body {
    flex-direction: column;
  }
  .exam-nav-panel {
    width: 100%;
    padding: 12px;
    border-right: none;
    border-bottom: 1px solid var(--exam-border);
    max-height: 140px;
    overflow-y: auto;
  }
  .nav-grid {
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
  }
  .nav-btn {
    font-size: 11px;
  }
  .exam-question-panel {
    padding: 16px;
  }
  .exam-timer-bar {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 14px;
    font-size: 12px;
  }
  .timer-clock {
    font-size: 15px;
  }
  .review-stats {
    grid-template-columns: 1fr;
  }
  .review-grid {
    grid-template-columns: repeat(5, 1fr);
  }
  .results-score {
    font-size: 40px;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
  body.exam-mode {
    background: #fff !important;
    color: #000 !important;
  }
  .exam-back-link,
  .exam-timer-bar,
  .exam-nav-panel,
  .btn-print-cert,
  .btn-retake,
  .btn-back-training,
  .results-actions,
  #preExam,
  #examScreen,
  #reviewScreen,
  #confirmModal,
  #timeWarning,
  #tabWarning {
    display: none !important;
  }
  #resultsScreen {
    display: block !important;
    padding: 20px;
  }
  .results-container {
    max-width: 100%;
  }
  .results-hero,
  .results-breakdown,
  .results-review {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
}