/* Marking enrichment: confidence, timing, grid (REQ-11/12/13) */

.pa-view-toggle {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-left: auto;
}

.pa-view-toggle-btn {
  border: 1px solid #d1d5db;
  background: #fff;
  color: #0f3685;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}

.pa-view-toggle-btn.is-active {
  background: #0f3685;
  border-color: #0f3685;
  color: #fff;
}

/* Scroll & mark feed */
.pa-scroll-feed-wrap {
  width: 100%;
}

.pa-scroll-feed-hint {
  margin: 0 0 14px;
  font-size: 0.9rem;
  color: #5a6b7d;
}

.pa-scroll-feed {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding-bottom: 48px;
}

.pa-feed-card {
  position: relative;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 14px;
  padding: 18px 20px 20px;
  scroll-margin-top: 96px;
  border-left: 4px solid #cbd5e1;
  overflow: hidden;
}

.pa-feed-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #0f3685 0%, #cbd5e1 70%, transparent 100%);
  pointer-events: none;
}

.pa-feed-card.correct {
  border-left-color: #059669;
  background: #f7fdf9;
}

.pa-feed-card.correct::before {
  background: linear-gradient(90deg, #059669 0%, #a7f3d0 70%, transparent 100%);
}

.pa-feed-card.wrong {
  border-left-color: #dc2626;
  background: #fff8f8;
}

.pa-feed-card.wrong::before {
  background: linear-gradient(90deg, #dc2626 0%, #fecaca 70%, transparent 100%);
}

.pa-feed-card.notattempted {
  border-left-color: #94a3b8;
}

.pa-feed-card-head {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 12px;
  margin-bottom: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid #e5e7eb;
}

.pa-feed-q-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.pa-feed-q-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: #e2e8f0;
  color: #64748b;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.pa-feed-card.correct .pa-feed-q-icon {
  background: #059669;
  color: #fff;
}

.pa-feed-card.wrong .pa-feed-q-icon {
  background: #dc2626;
  color: #fff;
}

.pa-feed-card.notattempted .pa-feed-q-icon {
  background: #64748b;
  color: #fff;
}

.pa-feed-q-label {
  font-size: 1.05rem;
  font-weight: 700;
  color: #0f3685;
  line-height: 1.2;
}

.pa-feed-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
  margin-left: auto;
}

.pa-feed-marks {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: #0055ff;
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 700;
  white-space: nowrap;
}

.pa-feed-tabs {
  display: flex;
  gap: 4px;
  margin: 0 0 14px;
  padding: 4px;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
}

.pa-feed-tab {
  flex: 1;
  appearance: none;
  border: 0;
  background: transparent;
  color: #64748b;
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.2;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.pa-feed-tab:hover {
  color: #0f3685;
  background: rgba(255, 255, 255, 0.7);
}

.pa-feed-tab.is-active,
.pa-feed-tab[aria-selected="true"] {
  background: #fff;
  color: #0f3685;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.pa-feed-tab:focus-visible {
  outline: 2px solid #0055ff;
  outline-offset: 2px;
}

.pa-feed-tab-panels {
  min-width: 0;
  margin-bottom: 14px;
}

.pa-feed-tab-panel[hidden] {
  display: none !important;
}

.pa-feed-question-crop {
  margin: 0;
  padding: 12px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  text-align: center;
}

.pa-feed-question-crop img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

.pa-feed-panel-empty {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  padding: 18px;
  background: #f8fafc;
  border-radius: 10px;
  color: #5a6b7d;
  font-size: 0.875rem;
  line-height: 1.5;
}

.pa-feed-panel-empty i {
  margin-top: 2px;
  color: #0055ff;
}

.pa-feed-answer-box {
  font-size: 1rem;
  line-height: 1.7;
  color: #0f172a;
  padding: 18px 20px;
  background: linear-gradient(135deg, #f0f7ff 0%, #f8fafc 100%);
  border-radius: 10px;
  border-left: 4px solid #0055ff;
}

.pa-feed-answer-box-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 0.75rem;
  font-weight: 800;
  color: #0055ff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pa-feed-answer-body {
  font-weight: 700;
  font-size: 1.125rem;
  color: #0f3685;
  line-height: 1.55;
}

.pa-feed-explanation-box {
  background: #f8fafc;
  border-left: 4px solid #0d9488;
  padding: 18px 20px;
  border-radius: 10px;
}

.pa-feed-explanation-heading {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #0f3685;
}

.pa-feed-explanation-body {
  line-height: 1.55;
  color: #0f172a;
}

.pa-feed-student {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

.pa-feed-student strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.8125rem;
  color: #475569;
}

.pa-feed-student-body {
  white-space: pre-wrap;
  color: #0f172a;
}

.pa-feed-mark {
  margin: 12px 0 8px;
}

.pa-feed-confidence {
  margin-top: 10px;
}

.pa-feed-lock {
  text-align: center;
  padding: 28px 16px;
  color: #64748b;
}

.pa-feed-lock i {
  font-size: 1.5rem;
  margin-bottom: 8px;
  color: #94a3b8;
}

body.pa-scroll-feed-mode .answer-container {
  display: none !important;
}

.pa-confidence-prompt {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f0f7ff;
  border: 1px solid #d6e4ff;
  display: none;
}

.pa-confidence-prompt.is-visible {
  display: block;
}

.pa-confidence-prompt p {
  margin: 0 0 10px;
  font-size: 0.9rem;
  color: #0f3685;
  font-weight: 600;
}

.pa-confidence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pa-confidence-btn,
.pa-timing-btn,
.pa-slow-btn {
  border: 1px solid #c5d4e8;
  background: #fff;
  color: #0f3685;
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}

.pa-confidence-btn.is-selected,
.pa-slow-btn.is-selected,
.pa-mark-grid-cell .pa-grid-mark.is-selected {
  background: #0f3685;
  color: #fff;
  border-color: #0f3685;
}

.pa-confidence-skip {
  border: none;
  background: transparent;
  color: #64748b;
  font-size: 0.8125rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 8px 4px;
}

.pa-timing-card {
  margin: 16px 0 0;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid #e2e8f0;
  background: #fff;
}

.pa-timing-card--side {
  margin: 0;
}

.pa-mark-grid-hint {
  margin: 12px 0 0;
  font-size: 0.875rem;
  color: #5a6b7d;
}

.pa-timing-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: #0f3685;
}

.pa-timing-card p {
  margin: 0 0 12px;
  font-size: 0.875rem;
  color: #5a6b7d;
}

.pa-timing-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 12px;
}

.pa-timing-row label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #0f3685;
}

.pa-timing-row input[type="number"] {
  width: 110px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 0.9375rem;
}

.pa-stop-point-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0 12px;
}

.pa-stop-point-btn {
  min-width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  background: #fff;
  cursor: pointer;
  font-weight: 700;
  color: #0f3685;
}

.pa-stop-point-btn.is-selected {
  background: #0f3685;
  color: #fff;
  border-color: #0f3685;
}

.pa-timer-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: #5a6b7d;
}

.pa-mark-grid {
  display: none;
  margin-top: 16px;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}

.pa-mark-grid.is-visible {
  display: block;
}

.pa-mark-grid-table {
  width: 100%;
  border-collapse: collapse;
}

.pa-mark-grid-table th,
.pa-mark-grid-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #eef2f7;
  text-align: left;
  font-size: 0.875rem;
  vertical-align: middle;
}

.pa-mark-grid-table th {
  background: #f8fafc;
  color: #0f3685;
  font-weight: 700;
}

.pa-mark-grid-answer {
  max-width: 18rem;
}

.pa-mark-grid-answer-text {
  display: inline-block;
  max-width: 100%;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: #0f172a;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.pa-mark-grid-answer-empty {
  color: #94a3b8;
}

.pa-mark-grid-cell {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pa-grid-mark {
  min-width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  background: #fff;
  cursor: pointer;
  color: #0f3685;
}

.pa-grid-mark[data-status="1"].is-selected { background: #059669; border-color: #059669; color: #fff; }
.pa-grid-mark[data-status="-1"].is-selected { background: #dc2626; border-color: #dc2626; color: #fff; }
.pa-grid-mark[data-status="0"].is-selected { background: #64748b; border-color: #64748b; color: #fff; }

.pa-slow-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(15, 23, 42, 0.45);
}

.pa-slow-modal.is-open {
  display: flex;
}

.pa-slow-modal-card {
  width: min(560px, 100%);
  max-height: 85vh;
  overflow: auto;
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.pa-slow-modal-card h3 {
  margin: 0 0 8px;
  color: #0f3685;
}

.pa-slow-modal-card p {
  margin: 0 0 14px;
  color: #5a6b7d;
  font-size: 0.9rem;
}

.pa-slow-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.pa-slow-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

body.pa-grid-mode .pa-mark-grid {
  display: block;
}

@media (max-width: 640px) {
  .pa-mark-grid-table th:nth-child(2),
  .pa-mark-grid-table td:nth-child(2) {
    display: none;
  }
}

/* MCQ option letter capture (diagnostic-rich telemetry) */
.pa-option-picker-host {
  width: 100%;
  margin: 0 0 10px;
}

.pa-option-picker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin: 0 0 10px;
}

.pa-option-picker-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #334155;
}

.pa-option-picker-btns {
  display: inline-flex;
  gap: 6px;
}

.pa-option-btn {
  min-width: 2.25rem;
  height: 2.25rem;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
  color: #0f3685;
  font-weight: 700;
  cursor: pointer;
}

.pa-option-btn:hover {
  border-color: #0f3685;
}

.pa-option-btn.is-selected {
  background: #0f3685;
  border-color: #0f3685;
  color: #fff;
}