/* --------------------------------------------------------------------------
   0. Security & Passcode Lock Screen
   -------------------------------------------------------------------------- */
.lock-screen-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 70vh;
  padding: 1.5rem;
}

.lock-card {
  max-width: 440px;
  width: 100%;
  padding: 2.5rem 2rem;
  background-color: var(--bg-surface);
  border: 1.5px solid var(--bg-surface-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fadeIn 0.3s ease;
}

.lock-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: var(--bg-surface-elevated);
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--primary);
}

/* --------------------------------------------------------------------------
   1. Home & Exam Selection View
   -------------------------------------------------------------------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.exam-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-left: 4px solid var(--primary);
  cursor: pointer;
}

.exam-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.exam-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}

.exam-year-badge {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.exam-category-tag {
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  background-color: var(--bg-surface-elevated);
  color: var(--text-secondary);
}

.exam-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.exam-progress-bar-bg {
  width: 100%;
  height: 6px;
  background-color: var(--bg-surface-elevated);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.exam-progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

.exam-stats-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.exam-card-actions {
  margin-top: 1.25rem;
  display: flex;
  gap: 0.5rem;
}

/* --------------------------------------------------------------------------
   2. Practice & Exam Arena Layout
   -------------------------------------------------------------------------- */
.arena-container {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex: 1;
}

/* Top Control Bar */
.arena-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-md);
}

.arena-title-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.q-index-pill {
  font-size: 1rem;
  font-weight: 700;
  padding: 0.3rem 0.8rem;
  background-color: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--primary-border);
}

.timer-box {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--warning);
  background-color: var(--warning-light);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--warning-border);
}

.flag-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--bg-surface-elevated);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}

.flag-btn.flagged {
  color: var(--warning);
  background-color: var(--warning-light);
  border-color: var(--warning-border);
}

/* Question Grid Navigator */
.q-grid-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.75rem;
  background-color: var(--bg-surface-subtle);
  border-radius: var(--radius-md);
  max-height: 120px;
  overflow-y: auto;
}

.q-grid-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--bg-surface-elevated);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.q-grid-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.q-grid-btn.current {
  border-color: var(--primary);
  background-color: var(--primary);
  color: #fff;
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.4);
}

.q-grid-btn.answered {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.q-grid-btn.correct {
  background-color: var(--success-light);
  color: var(--success);
  border-color: var(--success-border);
}

.q-grid-btn.incorrect {
  background-color: var(--danger-light);
  color: var(--danger);
  border-color: var(--danger-border);
}

.q-grid-btn.flagged::after {
  content: '';
  position: absolute;
  top: 2px;
  right: 2px;
  width: 6px;
  height: 6px;
  background-color: var(--warning);
  border-radius: 50%;
}

/* --------------------------------------------------------------------------
   3. Split Pane Layout (Figure Questions & Long Groups)
   -------------------------------------------------------------------------- */
.question-split-pane {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.question-split-pane.single-col {
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

/* Figure Viewer Pane */
.figure-pane {
  position: sticky;
  top: 5rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.figure-pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.figure-img-container {
  background-color: #ffffff;
  border-radius: var(--radius-md);
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  max-height: 500px;
  border: 1px solid var(--bg-surface-elevated);
  position: relative;
  cursor: zoom-in;
}

.figure-img {
  max-width: 100%;
  max-height: 480px;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.figure-zoom-btn {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background-color: rgba(15, 23, 42, 0.8);
  color: #fff;
  border: none;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

/* --------------------------------------------------------------------------
   4. Question Card & Controls
   -------------------------------------------------------------------------- */
.question-content-pane {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.question-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.question-instruction-banner {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background-color: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-md);
  color: var(--primary);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.5;
}

.question-body-text {
  font-size: 1.02rem;
  color: var(--text-primary);
  line-height: 1.75;
  white-space: pre-wrap;
}

/* Choices List (Single & Multi) */
.choices-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.choice-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-surface-subtle);
  border: 1.5px solid var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.choice-item:hover {
  background-color: var(--bg-surface-elevated);
  border-color: var(--text-muted);
}

.choice-item.selected {
  background-color: var(--primary-light);
  border-color: var(--primary);
}

.choice-item.correct-reveal {
  background-color: var(--success-light);
  border-color: var(--success);
}

.choice-item.incorrect-reveal {
  background-color: var(--danger-light);
  border-color: var(--danger);
}

.choice-radio, .choice-checkbox {
  margin-top: 0.25rem;
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.choice-id-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: var(--bg-surface-elevated);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 700;
}

.choice-item.selected .choice-id-badge {
  background-color: var(--primary);
  color: #ffffff;
}

.choice-text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Statements True/False Controls */
.statements-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.statement-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.15rem;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.statement-row.statement-row-correct {
  border-color: var(--success);
  background-color: var(--success-light);
}

.statement-row.statement-row-incorrect {
  border-color: var(--danger);
  background-color: var(--danger-light);
}

.statement-label {
  font-weight: 700;
  color: var(--text-muted);
  min-width: 24px;
}

.statement-text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.tf-toggle-group {
  display: flex;
  gap: 0.35rem;
}

.tf-btn {
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--bg-surface-elevated);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tf-btn:hover {
  background-color: var(--bg-surface-elevated);
}

.tf-btn.selected-t {
  background-color: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.tf-btn.selected-f {
  background-color: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Word Bank & Per-Label Blanks */
.blanks-group {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.blank-item-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.85rem 1.15rem;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-md);
}

.blank-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.blank-label-badge {
  padding: 0.2rem 0.5rem;
  background-color: var(--accent-light);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.85rem;
}

.blank-select {
  padding: 0.6rem 0.85rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-family: inherit;
  width: 100%;
  cursor: pointer;
  transition: var(--transition);
}

.blank-select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* --------------------------------------------------------------------------
   5. CBT Answer Sheet Entry (Judgement, Reason, Comment)
   -------------------------------------------------------------------------- */
.answer-sheet-panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.answer-sheet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--bg-surface-elevated);
  padding-bottom: 0.75rem;
}

.answer-sheet-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Confidence (A-D) Selector */
.confidence-selector {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.confidence-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.confidence-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.conf-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.6rem 0.4rem;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--bg-surface-elevated);
  background-color: var(--bg-surface-subtle);
  cursor: pointer;
  transition: var(--transition);
}

.conf-btn .conf-key {
  font-size: 1.1rem;
  font-weight: 800;
}

.conf-btn .conf-desc {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 500;
}

.conf-btn:hover {
  background-color: var(--bg-surface-elevated);
}

.conf-btn.conf-a.active {
  border-color: var(--conf-a);
  background-color: var(--conf-a-bg);
  color: var(--conf-a);
}
.conf-btn.conf-b.active {
  border-color: var(--conf-b);
  background-color: var(--conf-b-bg);
  color: var(--conf-b);
}
.conf-btn.conf-c.active {
  border-color: var(--conf-c);
  background-color: var(--conf-c-bg);
  color: var(--conf-c);
}
.conf-btn.conf-d.active {
  border-color: var(--conf-d);
  background-color: var(--conf-d-bg);
  color: var(--conf-d);
}

/* Reason & Comment Textareas */
.log-inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.log-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.log-input-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.log-textarea {
  width: 100%;
  min-height: 70px;
  padding: 0.6rem 0.8rem;
  background-color: var(--bg-surface-subtle);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.85rem;
  resize: vertical;
  line-height: 1.5;
  transition: var(--transition);
}

.log-textarea:focus {
  outline: none;
  border-color: var(--primary);
}

/* Historical Answer Sheet Accordion */
.history-accordion {
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-subtle);
  overflow: hidden;
}

.history-summary-header {
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  user-select: none;
}

.history-summary-header:hover {
  color: var(--text-primary);
}

.history-body {
  padding: 1rem;
  border-top: 1px solid var(--bg-surface-elevated);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.85rem;
}

.history-row {
  display: flex;
  gap: 0.5rem;
}

.history-row-label {
  font-weight: 600;
  color: var(--text-muted);
  min-width: 70px;
}

.history-row-value {
  color: var(--text-primary);
  flex: 1;
}

/* --------------------------------------------------------------------------
   6. Explanation & Result Panel (Reveal Mode)
   -------------------------------------------------------------------------- */
.explanation-card {
  background-color: var(--bg-surface);
  border: 1.5px solid var(--bg-surface-elevated);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.explanation-card.is-correct {
  border-color: var(--success-border);
}

.explanation-card.is-incorrect {
  border-color: var(--danger-border);
}

.explanation-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--bg-surface-elevated);
  padding-bottom: 0.75rem;
}

.verdict-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-md);
}

.verdict-badge.correct {
  background-color: var(--success-light);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.verdict-badge.incorrect {
  background-color: var(--danger-light);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.raw-answer-box {
  background-color: var(--bg-surface-subtle);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.explanation-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  white-space: pre-wrap;
}

/* --------------------------------------------------------------------------
   7. Bottom Action Bar (Nav & Submission)
   -------------------------------------------------------------------------- */
.bottom-action-bar {
  position: sticky;
  bottom: 0;
  z-index: 40;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--bg-surface-elevated);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.2);
}

.action-bar-left, .action-bar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* --------------------------------------------------------------------------
   8. Analytics & Matrix View
   -------------------------------------------------------------------------- */
.analytics-section {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.matrix-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--bg-surface-elevated);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.matrix-card-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
}

.matrix-score-big {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
}

.matrix-subtext {
  font-size: 0.75rem;
  color: var(--text-secondary);
}