.tai-ai-page {
  padding: 32px;
  color: var(--ink);
}

.tai-ai-page * {
  box-sizing: border-box;
}

.tai-ai-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.tai-ai-head h1 {
  max-width: 880px;
  margin: 8px 0 8px;
  font-size: 34px;
  line-height: 1.08;
  letter-spacing: -.4px;
}

.tai-ai-head p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.tai-ai-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.tai-ai-stepper {
  display: flex;
  align-items: flex-start;
  width: 100%;
  margin: 16px 0 20px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, .06);
}

.tai-ai-step {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  flex: 1 1 0;
  min-width: 0;
}

.tai-ai-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 44px;
  right: 16px;
  top: 16px;
  height: 3px;
  border-radius: 999px;
  background: #bfdbfe;
}

.tai-ai-step.done:not(:last-child)::after {
  background: linear-gradient(90deg, var(--purple), var(--violet));
}

.tai-ai-step-number {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  color: #64748b;
  background: #e0f2fe;
  border: 4px solid #f8fafc;
  font-size: 12px;
  font-weight: 700;
}

.tai-ai-step strong,
.tai-ai-step span {
  position: relative;
  z-index: 1;
  display: block;
}

.tai-ai-step strong {
  margin-top: 1px;
  font-size: 13px;
  line-height: 1.1;
}

.tai-ai-step span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

.tai-ai-step.active .tai-ai-step-number,
.tai-ai-step.done .tai-ai-step-number {
  color: #fff;
  background: linear-gradient(135deg, var(--purple), var(--violet));
}

.tai-ai-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 18px;
  align-items: start;
}

.tai-ai-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(15, 23, 42, .07);
}

.tai-ai-panel {
  padding: 24px;
}

.tai-ai-panel h2 {
  margin: 0 0 8px;
  font-size: 22px;
  line-height: 1.2;
}

.tai-ai-panel > p,
.tai-ai-help {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.tai-ai-type-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.tai-ai-type {
  display: block;
  width: 100%;
  min-height: 164px;
  padding: 18px;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 20px;
  color: var(--ink);
  background: linear-gradient(180deg, #fff, #f8fafd);
  transition: .18s ease;
}

.tai-ai-type:hover,
.tai-ai-type.active {
  transform: translateY(-3px);
  border-color: #c4b5fd;
  box-shadow: 0 18px 36px rgba(124, 58, 237, .14);
}

.tai-ai-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--purple), var(--violet));
  font-weight: 700;
}

.tai-ai-type strong {
  display: block;
  margin-bottom: 7px;
  font-size: 16px;
}

.tai-ai-type span,
.tai-ai-type small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.tai-ai-type small {
  margin-top: 11px;
  color: var(--purple);
  font-weight: 700;
}

.tai-ai-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.tai-ai-field {
  display: grid;
  gap: 7px;
  align-content: start;
}

.tai-ai-field.full {
  grid-column: 1 / -1;
}

.tai-ai-field > span {
  color: #334155;
  font-size: 12px;
  font-weight: 700;
}

.tai-ai-field small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.tai-ai-input,
.tai-ai-textarea,
.tai-ai-select,
.tai-ai-dropdown-button {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f8fafd;
  color: var(--ink);
  outline: 0;
  padding: 0 13px;
  font-size: 13px;
}

.tai-ai-textarea {
  min-height: 102px;
  padding: 12px 13px;
  resize: vertical;
  line-height: 1.55;
}

.tai-ai-input:focus,
.tai-ai-textarea:focus,
.tai-ai-select:focus,
.tai-ai-dropdown-button:focus {
  border-color: #c4b5fd;
  box-shadow: 0 0 0 4px rgba(124, 58, 237, .10);
  background: #fff;
}

.tai-ai-field.error .tai-ai-input,
.tai-ai-field.error .tai-ai-textarea,
.tai-ai-field.error .tai-ai-select,
.tai-ai-field.error .tai-ai-dropdown-button {
  border-color: #fecaca;
  background: #fff7f7;
}

.tai-ai-error {
  color: #b91c1c !important;
  font-weight: 600;
}

.tai-ai-dropdown {
  position: relative;
}

.tai-ai-dropdown-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  text-align: left;
}

.tai-ai-dropdown-menu {
  position: absolute;
  z-index: 30;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  max-height: 260px;
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(15, 23, 42, .16);
}

.tai-ai-check {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  padding: 7px 8px;
  border-radius: 10px;
  color: #334155;
  font-size: 12px;
  font-weight: 600;
}

.tai-ai-check:hover {
  background: #f8fafd;
}

.tai-ai-check input {
  width: 14px;
  height: 14px;
  accent-color: var(--purple);
}

.tai-ai-bncc {
  position: relative;
}

.tai-ai-suggestions {
  position: absolute;
  z-index: 25;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  max-height: 280px;
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(15, 23, 42, .16);
}

.tai-ai-suggestion {
  width: 100%;
  padding: 10px;
  border-radius: 12px;
  text-align: left;
  background: transparent;
}

.tai-ai-suggestion:hover {
  background: #f8fafd;
}

.tai-ai-suggestion strong {
  display: block;
  color: var(--purple);
  font-size: 12px;
}

.tai-ai-suggestion span {
  display: block;
  margin-top: 3px;
  color: #475569;
  font-size: 12px;
  line-height: 1.45;
}

.tai-ai-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 9px;
}

.tai-ai-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  max-width: 100%;
  min-height: 30px;
  padding: 5px 9px;
  border: 1px solid #ddd6fe;
  border-radius: 999px;
  color: var(--purple);
  background: #faf5ff;
  font-size: 11px;
  font-weight: 700;
}

.tai-ai-chip button {
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  color: var(--purple);
  background: #ede9fe;
}

.tai-ai-side {
  position: sticky;
  top: 112px;
  display: grid;
  gap: 14px;
}

.tai-ai-summary {
  padding: 18px;
}

.tai-ai-summary h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.tai-ai-summary dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

.tai-ai-summary div {
  padding: 10px;
  border-radius: 14px;
  background: #f8fafd;
}

.tai-ai-summary dt {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
}

.tai-ai-summary dd {
  margin: 4px 0 0;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.45;
  font-weight: 600;
}

.tai-ai-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-top: 20px;
}

.tai-ai-mini-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 13px;
  color: #475569;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 700;
}

.tai-ai-mini-btn.primary {
  color: #fff;
  background: linear-gradient(135deg, var(--purple), var(--violet));
  border-color: transparent;
  box-shadow: 0 14px 28px rgba(124, 58, 237, .22);
}

.tai-ai-mini-btn:disabled {
  opacity: .55;
  cursor: not-allowed;
}

.tai-ai-review-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tai-ai-review-item {
  padding: 14px;
  border-radius: 16px;
  background: #f8fafd;
  border: 1px solid var(--line);
}

.tai-ai-review-item span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.tai-ai-review-item strong {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.45;
}

.tai-ai-loading {
  display: grid;
  place-items: center;
  min-height: 360px;
  text-align: center;
}

.tai-school-loader {
  position: relative;
  width: 220px;
  height: 142px;
  margin: 0 auto 26px;
}

.tai-school-board {
  position: absolute;
  inset: 8px 10px 30px;
  border: 5px solid #7C3AED;
  border-radius: 20px;
  background: linear-gradient(135deg, #ecfeff, #faf5ff);
  box-shadow: 0 22px 50px rgba(124, 58, 237, .16);
  overflow: hidden;
}

.tai-school-board::before,
.tai-school-board::after {
  content: "";
  position: absolute;
  left: 22px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, #7C3AED, #2AABCF);
  animation: taiWrite 2.4s ease-in-out infinite;
}

.tai-school-board::before {
  top: 30px;
  width: 112px;
}

.tai-school-board::after {
  top: 55px;
  width: 148px;
  animation-delay: .35s;
}

.tai-school-pencil {
  position: absolute;
  right: 16px;
  top: 54px;
  width: 84px;
  height: 15px;
  border-radius: 999px;
  background: linear-gradient(90deg, #f59e0b 0 68%, #fef3c7 68% 82%, #334155 82%);
  transform: rotate(-18deg);
  animation: taiPencil 1.8s ease-in-out infinite;
  box-shadow: 0 12px 22px rgba(15, 23, 42, .16);
}

.tai-school-book {
  position: absolute;
  left: 36px;
  bottom: 7px;
  width: 68px;
  height: 44px;
  border-radius: 8px 8px 16px 16px;
  background: linear-gradient(90deg, #fff 0 48%, #f8fafc 48% 52%, #fff 52%);
  border: 2px solid #ddd6fe;
  box-shadow: 0 14px 28px rgba(124, 58, 237, .14);
  animation: taiBook 2s ease-in-out infinite;
}

.tai-school-spark {
  position: absolute;
  right: 44px;
  bottom: 22px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--purple), var(--violet));
  font-size: 18px;
  box-shadow: 0 14px 30px rgba(124, 58, 237, .24);
  animation: taiSpark 1.5s ease-in-out infinite;
}

.tai-loading-steps {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}

.tai-loading-steps span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ddd6fe;
  animation: taiDot 1.2s ease-in-out infinite;
}

.tai-loading-steps span:nth-child(2) {
  animation-delay: .15s;
}

.tai-loading-steps span:nth-child(3) {
  animation-delay: .3s;
}

@keyframes taiWrite {
  0%, 100% { transform: scaleX(.35); transform-origin: left; opacity: .55; }
  50% { transform: scaleX(1); transform-origin: left; opacity: 1; }
}

@keyframes taiPencil {
  0%, 100% { transform: translate(0, 0) rotate(-18deg); }
  50% { transform: translate(-34px, -12px) rotate(-12deg); }
}

@keyframes taiBook {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-8px) rotate(1deg); }
}

@keyframes taiSpark {
  0%, 100% { transform: scale(.92); opacity: .8; }
  50% { transform: scale(1.08); opacity: 1; }
}

@keyframes taiDot {
  0%, 100% { transform: translateY(0); opacity: .45; }
  50% { transform: translateY(-7px); opacity: 1; }
}

.tai-ai-document {
  height: min(68vh, 720px);
  min-height: 500px;
  overflow: auto;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .6);
}

.tai-ai-document-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.tai-ai-doc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
  padding: 16px 18px;
  border: 1px solid #E7ECF5;
  border-radius: 16px;
  background: linear-gradient(135deg, #fff, #faf5ff);
  page-break-inside: avoid;
}

.tai-ai-doc-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tai-ai-doc-logo {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #E7ECF5;
  box-shadow: 0 8px 18px rgba(15, 23, 42, .08);
  overflow: hidden;
}

.tai-ai-doc-logo img {
  display: block;
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.tai-ai-doc-brand strong,
.tai-ai-doc-brand span {
  display: block;
}

.tai-ai-doc-brand strong {
  color: #0F172A;
  font-size: 18px;
  line-height: 1.1;
  white-space: nowrap;
}

.tai-ai-doc-brand span,
.tai-ai-doc-meta {
  color: #64748B;
  font-size: 11px;
  line-height: 1.4;
  font-weight: 600;
}

.tai-ai-doc-meta {
  text-align: right;
  max-width: 48%;
}

.tai-ai-activity-reference {
  margin: 14px 0;
  page-break-inside: avoid;
  break-inside: avoid;
}

.tai-ai-activity-reference > strong,
.tai-ai-activity-reference > span {
  display: block;
}

.tai-ai-activity-reference > strong {
  color: #0F172A;
  font-size: 14px;
}

.tai-ai-activity-reference > span {
  margin-top: 4px;
  color: #64748B;
  font-size: 12px;
  line-height: 1.55;
}

.tai-ai-visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.tai-ai-visual-card {
  display: grid;
  padding: 12px;
  border: 1px solid #E7ECF5;
  border-radius: 18px;
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: .18s ease;
}

.tai-ai-visual-card:hover {
  transform: translateY(-2px);
  border-color: #c4b5fd;
  box-shadow: 0 14px 28px rgba(124, 58, 237, .12);
}

.tai-ai-visual-card svg {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
}

.tai-ai-visual-card strong,
.tai-ai-visual-card span {
  display: block;
}

.tai-ai-visual-card strong {
  margin-top: 9px;
  color: #0F172A;
  font-size: 12px;
}

.tai-ai-visual-card span {
  margin-top: 3px;
  color: #64748B;
  font-size: 11px;
  line-height: 1.45;
}

.tai-ai-visual-card em {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 28px;
  margin-top: 9px;
  padding: 0 10px;
  border-radius: 999px;
  color: #7C3AED;
  background: #F3E8FF;
  font-style: normal;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .6px;
}

.tai-ready-activities {
  margin: 24px 0 8px;
  padding-top: 8px;
  border-top: 1px solid #E7ECF5;
}

.tai-ready-activities h2 {
  border-top: 0 !important;
  margin-top: 0 !important;
}

.tai-print-sheet {
  margin: 16px 0;
  padding: 20px;
  border: 1px solid #CBD5E1;
  border-radius: 18px;
  background: #fff;
  page-break-inside: avoid;
  break-inside: avoid;
}

.tai-print-sheet-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed #CBD5E1;
  color: #334155;
  font-size: 12px;
  font-weight: 700;
}

.tai-print-sheet h3 {
  margin: 0 0 10px !important;
  color: #7C3AED;
  font-size: 17px !important;
}

.tai-print-sheet p {
  margin: 8px 0;
}

.tai-answer-lines {
  display: grid;
  gap: 8px;
  margin: 12px 0;
}

.tai-answer-lines span {
  display: block;
  height: 28px;
  border-bottom: 1px solid #94A3B8;
}

.tai-option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 12px 0;
}

.tai-option-box {
  min-height: 46px;
  padding: 10px;
  border: 1px solid #DDD6FE;
  border-radius: 12px;
  background: #FAF5FF;
  color: #334155;
  font-size: 12px;
  font-weight: 700;
}

.tai-drawing-box {
  min-height: 180px;
  margin: 12px 0;
  border: 2px dashed #A78BFA;
  border-radius: 16px;
  background:
    linear-gradient(#fff 0 0) padding-box,
    repeating-linear-gradient(0deg, transparent 0 27px, rgba(124, 58, 237, .10) 28px 29px);
}

.tai-ai-document h1,
.tai-ai-document h2,
.tai-ai-document h3 {
  color: #0f172a;
  line-height: 1.25;
}

.tai-ai-document h1 {
  margin: 0 0 18px;
  font-size: 25px;
}

.tai-ai-document h2 {
  margin: 24px 0 10px;
  padding-top: 8px;
  border-top: 1px solid #eef2f7;
  font-size: 18px;
  break-after: avoid;
}

.tai-ai-document h3 {
  margin: 18px 0 8px;
  font-size: 15px;
}

.tai-ai-document p,
.tai-ai-document li {
  color: #334155;
  font-size: 13px;
  line-height: 1.75;
}

.tai-ai-document h1,
.tai-ai-document h2,
.tai-ai-document h3,
.tai-ai-document table,
.tai-ai-document img,
.tai-ai-activity-image {
  page-break-inside: avoid;
  break-inside: avoid;
}

.tai-ai-document table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 12px;
}

.tai-ai-document th,
.tai-ai-document td {
  padding: 10px;
  border: 1px solid #e2e8f0;
  vertical-align: top;
}

.tai-ai-document th {
  background: #f8fafd;
  text-align: left;
}

.tai-ai-document img,
.tai-ai-activity-image {
  display: block;
  max-width: 100%;
  margin: 12px auto;
  border-radius: 18px;
  border: 1px solid var(--line);
}

.tai-ai-editor {
  width: 100%;
  height: min(68vh, 720px);
  min-height: 500px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  resize: vertical;
  color: #0f172a;
  background: #f8fafd;
  font: 13px/1.65 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.tai-ai-saved-grid {
  display: grid;
  gap: 10px;
}

.tai-ai-saved-card {
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.tai-ai-saved-card strong {
  display: block;
  margin-bottom: 5px;
  font-size: 13px;
}

.tai-ai-saved-card span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.tai-ai-empty {
  display: grid;
  place-items: center;
  min-height: 170px;
  padding: 22px;
  border: 1px dashed #cbd5e1;
  border-radius: 18px;
  color: var(--muted);
  text-align: center;
  background: #f8fafd;
}

@media print {
  body * {
    visibility: hidden;
  }

  .tai-ai-document,
  .tai-ai-document * {
    visibility: visible;
  }

  .tai-ai-document {
    position: absolute;
    inset: 0;
    width: 100%;
    height: auto;
    overflow: visible;
    border: 0;
    box-shadow: none;
  }

  .tai-ai-document-actions,
  .tai-ai-footer {
    display: none !important;
  }

  .tai-ai-document h1,
  .tai-ai-document h2,
  .tai-ai-document h3,
  .tai-ai-document table,
  .tai-ai-document img,
  .tai-ai-activity-image,
  .tai-ai-doc-header {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .tai-ai-doc-header {
    display: flex;
    padding: 10px 0 14px;
    border-radius: 0;
    border-width: 0 0 1px;
    background: #fff;
  }
}

@media (max-width: 1120px) {
  .tai-ai-layout,
  .tai-ai-side {
    position: static;
  }
}

@media (max-width: 760px) {
  .tai-ai-page {
    padding: 18px;
  }

  .tai-ai-head {
    display: grid;
  }

  .tai-ai-head h1 {
    font-size: 28px;
  }

  .tai-ai-stepper {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .tai-ai-step::after {
    display: none;
  }

  .tai-ai-type-grid,
  .tai-ai-form,
  .tai-ai-review-grid {
    grid-template-columns: 1fr;
  }

  .tai-ai-panel {
    padding: 18px;
  }

  .tai-ai-footer {
    display: grid;
  }

  .tai-ai-mini-btn {
    width: 100%;
  }

  .tai-ai-doc-header {
    display: grid;
  }

  .tai-ai-doc-meta {
    max-width: none;
    text-align: left;
  }

  .tai-ai-visual-grid {
    grid-template-columns: 1fr;
  }
}