/* AIVI Exam Center split styles v1 */
.exam-tab-shell {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.exam-page-shell .exam-content-shell {
  width: 100%;
  max-width: 1440px;
  min-width: 0;
}

.exam-page-shell .exam-page-header,
.exam-page-shell .exam-builder-steps,
.exam-page-shell .exam-tab-panel,
.exam-workbook-layout-list,
.exam-workbook-layout-list .exam-workbook-toolbar,
.exam-workbook-layout-list .exam-workbook-list,
.exam-workbook-layout-list .exam-workbook-rank-card {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.exam-tab-panel {
  min-width: 0;
  display: none;
}

.exam-tab-panel.is-active {
  display: block;
}

.exam-ready-layout,
.exam-analysis-panel {
  display: grid;
  gap: 1rem;
}

.exam-analysis-summary {
  display: grid;
  gap: 1rem;
}

.exam-analysis-summary-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.exam-analysis-summary-head h3 {
  margin: .45rem 0 .25rem;
  color: #0f172a;
  font-size: 1.25rem;
  font-weight: 900;
}

.exam-analysis-summary-head p {
  margin: 0;
  color: #64748b;
  font-size: .92rem;
  font-weight: 700;
  line-height: 1.6;
}

.exam-ready-summary,
.exam-analysis-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .8rem;
}

.exam-ready-metric,
.exam-analysis-summary-grid > div,
.exam-analysis-answer-grid > div {
  border: 1px solid var(--exam-line);
  border-radius: 12px;
  background: #f8fafc;
  padding: .85rem;
}

.exam-ready-metric span,
.exam-analysis-summary-grid span,
.exam-analysis-answer-grid span {
  display: block;
  color: #64748b;
  font-size: .76rem;
  font-weight: 900;
}

.exam-ready-metric strong,
.exam-analysis-summary-grid strong,
.exam-analysis-answer-grid strong {
  display: block;
  margin-top: .25rem;
  color: #0f172a;
  font-size: 1rem;
  font-weight: 900;
}

.exam-ready-title-row,
.exam-history-card,
.exam-analysis-item-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.exam-ready-list,
.exam-history-list,
.exam-analysis-list {
  display: grid;
  gap: .85rem;
}

.exam-ready-list {
  margin-top: 1rem;
}

.exam-ready-item,
.exam-history-card,
.exam-analysis-item {
  border: 1px solid var(--exam-line);
  border-radius: 12px;
  background: #fff;
  padding: 1rem;
}

.exam-ready-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: .8rem;
  align-items: start;
}

.exam-ready-main h3,
.exam-history-main h3,
.exam-analysis-item h3 {
  margin: 0;
  color: #0f172a;
  font-size: 1rem;
  font-weight: 900;
  line-height: 1.5;
}

.aivi-exam-ready-options {
  display: grid;
  gap: .85rem;
}

.aivi-exam-ready-duration {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
}

.aivi-exam-ready-duration .exam-builder-btn.is-active {
  border-color: #1e293b;
  background: #1e293b;
  color: #fff;
}

.aivi-exam-ready-custom {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  min-height: 38px;
  border: 1px solid var(--exam-line);
  border-radius: 12px;
  background: #fff;
  padding: .25rem .65rem;
  color: #475569;
  font-size: .82rem;
  font-weight: 900;
}

.aivi-exam-ready-custom input {
  width: 72px;
  min-height: 30px;
  border: 1px solid #dbe3ef;
  border-radius: 9px;
  padding: .35rem .45rem;
  color: #0f172a;
  font-weight: 900;
}

.exam-history-main p,
.exam-analysis-explanation p,
.exam-analysis-feedback {
  margin: .45rem 0 0;
  color: #64748b;
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.6;
}

.aivi-exam-analysis-note-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: .55rem;
  margin-top: .9rem;
}

.aivi-exam-analysis-note-badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  border: 1px solid #dbeafe;
  border-radius: 999px;
  background: #eff6ff;
  padding: .35rem .75rem;
  color: #1d4ed8;
  font-size: .78rem;
  font-weight: 900;
}

.aivi-exam-analysis-note-link {
  min-height: 36px;
}

.exam-analysis-explanation {
  margin-top: .9rem;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #f8fafc;
  padding: .85rem;
}

.exam-analysis-explanation strong {
  color: #0f172a;
  font-size: .82rem;
  font-weight: 900;
}

.exam-history-toolbar {
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 240px));
  gap: .8rem;
}

.exam-analysis-empty {
  display: none;
  padding: 2rem;
  color: #64748b;
  font-weight: 900;
  text-align: center;
}

.exam-analysis-empty.is-open {
  display: block;
}

.exam-analysis-empty strong {
  display: block;
  color: #0f172a;
  font-size: 1.05rem;
  font-weight: 900;
}

.exam-analysis-empty p {
  margin: .45rem 0 0;
  color: #64748b;
  font-size: .92rem;
}

.exam-analysis-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  align-items: center;
}

.exam-workbook-layout-list {
  display: block;
}

.exam-workbook-layout-list .exam-workbook-toolbar {
  grid-template-columns: minmax(240px, 1.45fr) repeat(5, minmax(124px, .82fr)) 112px;
  align-items: end;
}

.exam-workbook-layout-list .exam-workbook-list {
  gap: 1rem;
}

.exam-workbook-layout-list .exam-workbook-rank-card {
  grid-template-columns: 52px 62px minmax(0, 1fr) minmax(420px, .72fr);
  border-radius: 16px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, .045);
}

.exam-workbook-layout-list .exam-workbook-rank-card.is-active {
  border-color: #cbd5e1;
  box-shadow: 0 10px 26px rgba(15, 23, 42, .06);
}

.exam-workbook-layout-list .exam-workbook-actions {
  grid-template-columns: minmax(220px, 1fr) minmax(230px, .9fr);
}

.exam-workbook-layout-list .exam-workbook-action-stack {
  gap: .5rem;
}

.exam-workbook-layout-list .exam-workbook-more {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  padding: .85rem 1rem;
  border: 1px solid var(--exam-line);
  border-radius: 16px;
  background: #fff;
  box-shadow: var(--exam-shadow);
}

.exam-workbook-layout-list .exam-workbook-more.is-open {
  display: flex;
}

.exam-workbook-layout-list .exam-workbook-more .exam-builder-muted {
  margin: 0;
}

.aivi-exam-workbook-detail {
  display: none;
  grid-column: 1 / -1;
  margin-top: .9rem;
}

.aivi-exam-workbook-detail.is-open {
  display: block;
}

.aivi-exam-workbook-detail-inner,
.aivi-exam-ready-selected-card {
  border: 1px solid #dbe3ef;
  border-radius: 16px;
  background: #f8fafc;
  padding: 1rem;
}

.aivi-exam-workbook-detail-head,
.aivi-exam-ready-selected-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.aivi-exam-workbook-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .7rem;
  margin-top: .9rem;
}

.aivi-exam-workbook-detail-item {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #fff;
  padding: .7rem;
}

.aivi-exam-workbook-detail-item span {
  display: block;
  color: #64748b;
  font-size: .72rem;
  font-weight: 900;
}

.aivi-exam-workbook-detail-item strong {
  display: block;
  margin-top: .25rem;
  color: #0f172a;
  font-size: .9rem;
  font-weight: 900;
}

.aivi-exam-workbook-detail-actions,
.aivi-exam-ready-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: .55rem;
  margin-top: .9rem;
}

.aivi-exam-ready-selected {
  display: block;
}

.aivi-exam-ready-selected[hidden] {
  display: none;
}

.aivi-exam-ready-selected-card {
  background: #eef6ff;
  border-color: #bfdbfe;
}

.aivi-exam-ready-selected-card .exam-section-title {
  margin-top: .55rem;
}

.aivi-exam-ready-actions {
  margin-top: 0;
  min-width: 280px;
}

.exam-analysis-answer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  margin-top: .85rem;
}

.exam-analysis-item-title {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: .8rem;
  align-items: flex-start;
  min-width: 0;
}

.exam-analysis-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: .92rem;
  font-weight: 900;
}

.exam-analysis-badges {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: .45rem;
}

.exam-analysis-question-id {
  flex: 0 0 auto;
  color: #64748b;
  font-size: .78rem;
  font-weight: 900;
}

.exam-analysis-passage {
  margin: .9rem 0 0 50px;
  border-left: 3px solid #bfdbfe;
  background: #f8fafc;
  border-radius: 12px;
  padding: .8rem .9rem;
  color: #334155;
  font-size: .92rem;
  font-weight: 700;
  line-height: 1.7;
  white-space: pre-wrap;
}

.exam-analysis-choices {
  display: grid;
  gap: .55rem;
  margin: .9rem 0 0 50px;
  padding: 0;
  list-style: none;
}

.exam-analysis-choice {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: start;
  gap: .65rem;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #fff;
  padding: .72rem .85rem;
}

.exam-analysis-choice span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #334155;
  font-weight: 900;
}

.exam-analysis-choice strong {
  color: #0f172a;
  font-size: .92rem;
  font-weight: 800;
  line-height: 1.55;
}

.exam-analysis-choice.is-answer {
  border-color: #86efac;
  background: #f0fdf4;
}

.exam-analysis-choice.is-answer span {
  background: #16a34a;
  color: #fff;
}

.exam-analysis-choice.is-selected {
  box-shadow: inset 0 0 0 2px rgba(37, 99, 235, .14);
}

.exam-analysis-choice.is-wrong-selected {
  border-color: #fecaca;
  background: #fff1f2;
}

.exam-analysis-choice.is-wrong-selected span {
  background: #ef4444;
  color: #fff;
}

.aivi-exam-preview-shell {
  display: grid;
  gap: 1rem;
}

.aivi-exam-preview-header {
  align-items: flex-start;
}

.aivi-exam-preview-header-actions {
  justify-content: flex-end;
}

.aivi-exam-preview-summary {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(520px, 1fr);
  gap: 1rem;
  align-items: start;
}

.aivi-exam-preview-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .7rem;
}

.aivi-exam-preview-meta-grid > div,
.aivi-exam-preview-hidden {
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #f8fafc;
  padding: .75rem;
}

.aivi-exam-preview-meta-grid span,
.aivi-exam-preview-hidden span {
  display: block;
  color: #64748b;
  font-size: .72rem;
  font-weight: 900;
}

.aivi-exam-preview-meta-grid strong,
.aivi-exam-preview-hidden strong {
  display: block;
  margin-top: .25rem;
  color: #0f172a;
  font-size: .95rem;
  font-weight: 900;
}

.aivi-exam-preview-list {
  display: grid;
  gap: 1rem;
}

.aivi-exam-preview-card {
  border: 1px solid var(--exam-line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(15, 23, 42, .045);
  padding: 1.1rem;
}

.aivi-exam-preview-card-head {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: .85rem;
  align-items: start;
}

.aivi-exam-preview-index,
.aivi-exam-preview-choice-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: #e0ecff;
  color: #1d4ed8;
  font-size: .9rem;
  font-weight: 900;
}

.aivi-exam-preview-title-area {
  min-width: 0;
}

.aivi-exam-preview-title-row h2 {
  margin: 0;
  color: #0f172a;
  font-size: 1.04rem;
  font-weight: 900;
  line-height: 1.55;
}

.aivi-exam-preview-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-top: .55rem;
}

.aivi-exam-preview-passage {
  margin: .9rem 0 0 46px;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #f8fafc;
  color: #334155;
  font-size: .92rem;
  font-weight: 700;
  line-height: 1.7;
  padding: .9rem 1rem;
  white-space: pre-wrap;
}

.aivi-exam-preview-media {
  margin: .9rem 0 0 46px;
  border: 1px solid #dbeafe;
  border-radius: 12px;
  background: #eff6ff;
  color: #334155;
  padding: .9rem 1rem;
}

.aivi-exam-preview-material-label {
  color: #1d4ed8;
  font-size: .74rem;
  font-weight: 900;
  letter-spacing: .02em;
}

.aivi-exam-preview-media img {
  display: block;
  max-width: min(100%, 720px);
  max-height: 420px;
  margin-top: .65rem;
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  background: #fff;
  object-fit: contain;
}

.aivi-exam-preview-media audio {
  display: block;
  width: min(100%, 520px);
  margin-top: .65rem;
}

.aivi-exam-preview-media p {
  margin: .45rem 0 0;
  color: #475569;
  font-size: .9rem;
  font-weight: 800;
  line-height: 1.6;
}

.aivi-exam-preview-choices {
  display: grid;
  gap: .55rem;
  margin: 1rem 0 0 46px;
  padding: 0;
  list-style: none;
}

.aivi-exam-preview-choices li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: .65rem;
  align-items: start;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #fff;
  color: #334155;
  font-size: .92rem;
  font-weight: 700;
  line-height: 1.6;
  padding: .7rem;
}

.aivi-exam-preview-reveal-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: .5rem;
  margin-top: .9rem;
}

.aivi-exam-preview-hidden {
  margin: .75rem 0 0 46px;
}

.aivi-exam-preview-hidden[hidden] {
  display: none;
}

.aivi-exam-preview-hidden p {
  margin: .35rem 0 0;
  color: #334155;
  font-size: .92rem;
  font-weight: 700;
  line-height: 1.7;
  white-space: pre-wrap;
}

.aivi-exam-preview-empty {
  margin: .9rem 0 0 46px;
  color: #64748b;
  font-size: .9rem;
  font-weight: 800;
}

.exam-analysis-item.is-correct {
  border-color: #bbf7d0;
}

.exam-analysis-item.is-wrong {
  border-color: #fecaca;
}

.exam-analysis-item.is-review {
  border-color: #fde68a;
  background: #fffbeb;
}

.aivi-shadcn-body.exam-focus-mode .aivi-sidebar,
.aivi-shadcn-body.exam-focus-mode .aivi-topbar {
  display: none;
}

.aivi-shadcn-body.exam-focus-mode .aivi-shadcn-app {
  display: block;
}

.aivi-shadcn-body.exam-focus-mode .aivi-main {
  width: 100%;
}

.aivi-shadcn-body.exam-focus-mode {
  background: #f8fafc;
}

.aivi-shadcn-body.exam-focus-mode .aivi-workspace {
  padding-top: 0;
}

.aivi-exam-focus-timer.is-warning {
  color: #b45309;
}

.aivi-exam-focus-timer.is-danger {
  color: #dc2626;
}

.aivi-exam-focus-resource {
  display: grid;
  gap: .75rem;
}

.aivi-exam-focus-image {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  border: 1px solid #dbe3ef;
  border-radius: 14px;
  background: #fff;
}

@media (max-width: 1280px) {
  .exam-ready-summary,
  .exam-analysis-summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .exam-workbook-layout-list .exam-workbook-toolbar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .exam-workbook-layout-list .exam-workbook-rank-card {
    grid-template-columns: 46px 58px minmax(0, 1fr);
  }

  .exam-workbook-layout-list .exam-workbook-actions {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .exam-ready-summary,
  .exam-history-toolbar,
  .exam-analysis-summary-grid,
  .exam-analysis-answer-grid {
    grid-template-columns: 1fr;
  }

  .exam-ready-title-row,
  .exam-history-card,
  .exam-analysis-item-head {
    flex-direction: column;
  }

  .exam-analysis-summary-head {
    flex-direction: column;
  }

  .exam-analysis-passage,
  .exam-analysis-choices {
    margin-left: 0;
  }

  .exam-workbook-layout-list .exam-workbook-toolbar {
    grid-template-columns: 1fr;
  }

  .exam-workbook-layout-list .exam-workbook-rank-card {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .exam-workbook-layout-list .exam-workbook-icon {
    display: none;
  }

  .exam-workbook-layout-list .exam-workbook-main,
  .exam-workbook-layout-list .exam-workbook-actions {
    grid-column: 2 / -1;
  }

  .exam-workbook-layout-list .exam-workbook-actions,
  .exam-workbook-layout-list .exam-workbook-action-row.two,
  .exam-workbook-layout-list .exam-workbook-action-row.three {
    grid-template-columns: 1fr;
  }

  .exam-workbook-layout-list .exam-workbook-more {
    align-items: stretch;
    flex-direction: column;
  }

  .aivi-exam-preview-summary,
  .aivi-exam-preview-meta-grid {
    grid-template-columns: 1fr;
  }

  .aivi-exam-preview-header {
    flex-direction: column;
  }

  .aivi-exam-workbook-detail-head,
  .aivi-exam-ready-selected-card {
    flex-direction: column;
  }

  .aivi-exam-workbook-detail-grid {
    grid-template-columns: 1fr;
  }

  .aivi-exam-workbook-detail-actions,
  .aivi-exam-ready-actions {
    justify-content: stretch;
    width: 100%;
  }

  .aivi-exam-workbook-detail-actions .exam-builder-btn,
  .aivi-exam-ready-actions .exam-builder-btn {
    width: 100%;
  }

  .aivi-exam-preview-passage,
  .aivi-exam-preview-media,
  .aivi-exam-preview-choices,
  .aivi-exam-preview-hidden,
  .aivi-exam-preview-empty {
    margin-left: 0;
  }
}

@media print {
  .aivi-sidebar,
  .aivi-topbar,
  .aivi-exam-preview-actions,
  .aivi-exam-preview-toggle-actions {
    display: none !important;
  }

  .aivi-shadcn-app,
  .aivi-main,
  .aivi-workspace,
  .exam-page-shell,
  .exam-page-shell .exam-content-shell,
  .aivi-exam-preview-shell {
    display: block !important;
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .aivi-exam-preview-header,
  .aivi-exam-preview-summary,
  .aivi-exam-preview-card {
    box-shadow: none !important;
  }

  .aivi-exam-preview-card {
    break-inside: avoid;
    page-break-inside: avoid;
    margin-top: 12px;
  }

  .aivi-exam-preview-summary {
    grid-template-columns: 1fr;
    margin-bottom: 12px;
  }

  .aivi-exam-preview-meta-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .aivi-exam-preview-hidden[hidden] {
    display: none !important;
  }

  .aivi-exam-preview-passage,
  .aivi-exam-preview-media,
  .aivi-exam-preview-choices,
  .aivi-exam-preview-hidden,
  .aivi-exam-preview-empty {
    margin-left: 0;
  }

  .aivi-exam-preview-media img {
    max-height: 320px;
  }
}