/* 4de tot en met 6de leerjaar - getalinzicht tot 100 000 */

.graad-badge {
  background: #fff7ed;
  color: #c2410c;
  border: 1px solid #fed7aa;
  border-radius: 999px;
  padding: 5px 10px;
  font-weight: 900;
  font-size: 12px;
}

.gi4-level-panel {
  margin: 0 0 12px;
  background: linear-gradient(135deg, #f8fbff, #f3fbef);
  border-color: #bfdbfe;
}

.gi4-level-panel .veld-rij {
  gap: 8px;
}

.gi4-level-note {
  margin: 8px 0 0;
  color: #1A3A5C;
  font-size: 12px;
  line-height: 1.35;
  font-weight: 700;
}

.gi4-show-all-levels {
  margin-top: 8px;
  font-size: 12px;
  color: #475569;
  font-weight: 800;
}

.gi4-hundredths-extra-panel {
  background: linear-gradient(135deg, #ecfeff, #f0fdfa);
  border-color: #67e8f9;
  box-shadow: inset 4px 0 0 #0891b2;
}

.gi4-hundredths-extra-panel .kaart-titel {
  color: #0e7490;
}

.gi4-fraction-stem-panel {
  background: linear-gradient(135deg, #fff7ed, #fffbeb);
  border-color: #fdba74;
  box-shadow: inset 4px 0 0 #f97316;
}

.gi4-fraction-stem-panel .kaart-titel {
  color: #c2410c;
}

body.gi4-range-100000 .graad-badge {
  background: #ecfeff;
  color: #155e75;
  border-color: #a5f3fc;
}

body.gi4-range-1000000 .graad-badge {
  background: #f0fdf4;
  color: #166534;
  border-color: #86efac;
}

body.gi4-range-10000000 .graad-badge {
  background: #fef2f2;
  color: #991b1b;
  border-color: #fecaca;
}

.sidebar-tab.tab-1000000 {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  border-color: #86efac;
}

.sidebar-tab.tab-10000000 {
  background: linear-gradient(135deg, #fee2e2, #fecaca);
  border-color: #fca5a5;
}

.sidebar-tab.tab-negatief {
  background: linear-gradient(135deg, #e0f2fe, #cffafe);
  border-color: #67e8f9;
}

.sidebar-tab.tab-percenten {
  background: linear-gradient(135deg, #ffedd5, #fed7aa);
  border-color: #fb923c;
}

.sidebar-tab.tab-romeins {
  background: linear-gradient(135deg, #ede9fe, #ddd6fe);
  border-color: #8b5cf6;
}

.gi4-percent-panel {
  background: linear-gradient(135deg, #fff7ed, #fff1e6);
  border-color: #fb923c;
  box-shadow: inset 4px 0 0 #f97316;
}

.gi4-percent-panel .kaart-titel {
  color: #c2410c;
}

.gi4-percent-relation-panel {
  margin-top: 14px;
  background: linear-gradient(135deg, #fff1f2, #ffe4e6);
  border-color: #fb7185;
  box-shadow: inset 4px 0 0 #e11d48;
}

.gi4-percent-relation-panel .kaart-titel {
  color: #be123c;
}

.gi4-roman-panel {
  background: linear-gradient(135deg, #f5f3ff, #ede9fe);
  border-color: #8b5cf6;
  box-shadow: inset 4px 0 0 #7c3aed;
}

.gi4-roman-panel .kaart-titel {
  color: #5b21b6;
}

.gi4-note {
  margin: 8px 0 0;
  color: #64748b;
  font-size: 12px;
  line-height: 1.4;
}

.config-kaart .btn-toevoegen.in-config {
  margin-top: 14px;
  border-radius: 8px;
  padding: 9px 12px;
  box-shadow: none;
}

.sheet-title-hint {
  margin-top: 2px;
  color: #64748b;
  font-size: 12px;
  font-style: italic;
}

.gi4-solution-answer {
  display: none;
  color: #0f8dc4;
  font-weight: 800;
}

.solutions-mode .gi4-solution-answer {
  display: inline;
}

.solutions-mode .gi4-symbol-box {
  display: inline-grid;
  place-items: center;
}

.solutions-mode .gi4-line {
  text-align: center;
}

.solutions-mode .gi4-tick-box {
  display: grid;
  place-items: center;
  color: #0f8dc4;
  font-weight: 800;
}

.gi4-svg-solution-answer,
.solution-only {
  display: none;
}

.solutions-mode .gi4-svg-solution-answer,
.solutions-mode .solution-only {
  display: initial;
}

.btn-solutions {
  background: #16a34a;
}

#sidebarTabs .tab-dhte {
  background: #fee2e2;
  color: #7f1d1d;
}

#sidebarTabs .tab-100000 {
  background: #e0f7ec;
  color: #14532d;
}

#sidebarTabs .tab-100000.active {
  background: #bdf0d2;
}

#sidebarTabs .tab-dhte.active {
  background: #fecaca;
}

#sidebarTabs .tab-aanvullen {
  background: #ffedd5;
  color: #7c2d12;
}

#sidebarTabs .tab-aanvullen.active {
  background: #fed7aa;
}

#sidebarTabs .tab-waarde {
  background: #ccfbf1;
  color: #134e4a;
}

#sidebarTabs .tab-waarde.active {
  background: #99f6e4;
}

#sidebarTabs .tab-breuken {
  background: #fae8ff;
  color: #701a75;
}

#sidebarTabs .tab-breuken.active {
  background: #f5d0fe;
}

#sidebarTabs .tab-kommagetallen {
  background: #e0f2fe;
  color: #075985;
}

#sidebarTabs .tab-kommagetallen.active {
  background: #bae6fd;
}

.gi4-block > .delete-btn {
  display: none;
}

.gi4-block-controls {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 8px;
  border-top: 1px dashed #d8e4ef;
}

.gi4-block-remove-btn {
  border: 1px solid #f3a7b3;
  background: #fff5f7;
  color: #b4233b;
  border-radius: 999px;
  padding: 5px 11px;
  font-weight: 800;
  font-size: 12px;
  cursor: pointer;
}

.gi4-block-remove-btn:hover {
  background: #ffe3e8;
}

@media print {
  .gi4-block-controls {
    display: none !important;
  }
}

html.exporting .gi4-block-controls {
  display: none !important;
}

#werkblad .row-delete-btn {
  top: 8px !important;
  right: 8px !important;
  transform: none !important;
  z-index: 40;
}

.gi4-block {
  position: relative;
  margin: 10px 0 18px;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid #dbeafe;
  border-radius: 8px;
  break-inside: auto;
  page-break-inside: auto;
}

.gi4-block-title {
  margin: 0 0 10px;
  font-weight: 800;
  color: #1A3A5C;
  font-size: 15px;
  break-after: avoid;
  page-break-after: avoid;
}

.title-row,
.gi4-fraction-instructions {
  break-inside: avoid;
  page-break-inside: avoid;
  break-after: avoid;
  page-break-after: avoid;
}

.title-row + *,
.gi4-block-title + *,
.gi4-fraction-instructions + * {
  break-before: avoid;
  page-break-before: avoid;
}

.gi4-fraction-instructions + * > :first-child {
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-block > :is(.gi4-grid, .gi4-fraction-lines, .gi4-fraction-equiv-grid, .gi4-fraction-common-grid, .gi4-fraction-compare-grid, .gi4-fraction-estimate-grid, .gi4-mixed-grid, .gi4-decimal-grid, .gi4-decimal-mixed-grid, .gi4-decimal-place-grid, .gi4-quantity-grid) > .row-delete-wrap:first-child {
  break-before: avoid;
  page-break-before: avoid;
}

.row-delete-wrap {
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-local-add-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: end;
  margin: 12px 0 0 auto;
  padding: 6px 12px;
  border: 1px solid #9bb7d4;
  border-radius: 999px;
  background: #fff;
  color: #1A3A5C;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
}

.gi4-local-add-btn:hover {
  background: #eef6ff;
}

.gi4-grid {
  display: grid;
  gap: 10px;
}

.gi4-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gi4-upper-value-grid {
  grid-template-columns: 1fr;
  gap: 14px;
  width: min(100%, 720px);
  margin: 0 auto;
}

.gi4-material-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.gi4-complete-card {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 10px;
  padding: 12px 16px;
  min-height: 220px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-complete-card.example {
  background: #ffddb0;
  border-color: #fb923c;
}

.gi4-complete-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  margin-bottom: 16px;
}

.gi4-complete-table th,
.gi4-complete-table td {
  border: 1.5px solid #94a3b8;
  text-align: center;
}

.gi4-complete-table th {
  height: 32px;
  font-size: 18px;
  font-weight: 900;
  color: #111827;
}

.gi4-complete-table td {
  height: 68px;
  vertical-align: middle;
}

.gi4-complete-material {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  align-content: center;
  justify-content: center;
  padding: 6px;
}

.gi4-dot.outline {
  background: #fff;
  color: transparent;
  box-shadow: none;
  border: 2px solid currentColor;
}

.gi4-dot.gi4-d.outline { border-color: #c81e2d; }
.gi4-dot.gi4-h.outline { border-color: #1976ad; }
.gi4-dot.gi4-t.outline { border-color: #38a846; }
.gi4-dot.gi4-e.outline { border-color: #d4a800; }

.gi4-complete-lines {
  display: grid;
  gap: 12px;
  font-size: 18px;
  color: #1f2937;
}

.gi4-complete-lines p {
  margin: 0;
}

.gi4-complete-lines strong {
  color: #0f8dc4;
}

.gi4-next-thousand-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px 18px;
}

.gi4-next-thousand-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  padding: 18px 18px 16px;
  min-height: 174px;
  display: grid;
  gap: 13px;
  align-content: start;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-next-thousand-card.example {
  background: #ffddb0;
  border-color: #fb923c;
}

.gi4-next-thousand-number {
  justify-self: center;
  min-width: 150px;
  padding: 5px 12px;
  border: 1.4px solid #606a76;
  background: #fff;
  text-align: center;
  font-size: 22px;
  font-weight: 500;
}

.gi4-next-thousand-card p {
  margin: 0;
  font-size: 18px;
  line-height: 1.45;
}

.gi4-next-thousand-card strong {
  color: #0f8dc4;
}

.gi4-next-thousand-card .gi4-line.long {
  min-width: 138px;
}

.gi4-g5-axis-order {
  display: grid;
  gap: 38px;
}

.gi4-g5-axis-order-row {
  position: relative;
  display: grid;
  gap: 34px;
  padding: 8px 18px 24px;
  border-bottom: 1px solid #d8edf3;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-axis-order-row:last-child {
  border-bottom: 0;
}

.gi4-g5-axis {
  position: relative;
  height: 86px;
  margin: 0 26px;
}

.gi4-g5-axis-line {
  position: absolute;
  left: 0;
  right: 0;
  top: 54px;
  border-top: 2px solid #6e9faf;
}

.gi4-g5-axis-line::after {
  content: "";
  position: absolute;
  right: -2px;
  top: -5px;
  width: 10px;
  height: 10px;
  border-top: 2px solid #6e9faf;
  border-right: 2px solid #6e9faf;
  transform: rotate(45deg);
}

.gi4-g5-axis > span {
  position: absolute;
  top: 45px;
  height: 16px;
  border-left: 1.5px solid #6e9faf;
  transform: translateX(-50%);
}

.gi4-g5-axis > span.major {
  top: 27px;
  height: 34px;
  border-left-width: 2px;
}

.gi4-g5-axis-label {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  border: 1.6px solid #6e9faf;
  background: #fff;
  padding: 4px 7px;
  font-size: 16px;
  white-space: nowrap;
}

.gi4-g5-axis-label.edge-left {
  transform: translateX(-40%);
}

.gi4-g5-axis-label.edge-right {
  transform: translateX(-62%);
}

.gi4-g5-axis-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px 34px;
  padding-top: 16px;
}

.gi4-g5-axis-card {
  position: relative;
  min-width: 96px;
  padding: 8px 13px;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  text-align: center;
  font-size: 18px;
}

.gi4-g5-axis-card::before {
  content: "";
  position: absolute;
  top: -8px;
  left: 50%;
  width: 11px;
  height: 11px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: #111827;
}

.gi4-g5-place-compare,
.gi4-g5-plain-compare {
  display: grid;
  gap: 14px;
}

.gi4-g5-plain-compare {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
}

.gi4-g5-place-compare-card,
.gi4-g5-plain-compare-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  padding: 12px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-place-compare-tables {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.gi4-g5-place-compare-card .gi4-place-table.compact td {
  height: 48px;
}

.gi4-g5-place-compare-card .gi4-material.compact {
  min-height: 36px;
  gap: 3px;
}

.gi4-g5-place-compare-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 12px;
  font-size: 18px;
}

.gi4-g5-plain-compare-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
}

.gi4-g5-plain-compare-row {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  align-items: center;
  justify-items: center;
  padding: 12px 10px;
  border-right: 2px solid #6e9faf;
  border-bottom: 2px solid #6e9faf;
  font-size: 18px;
  position: relative;
}

.gi4-g5-plain-compare-row:nth-child(3n) {
  border-right: 0;
}

.gi4-g5-plain-compare > .gi4-g5-plain-compare-row {
  border: 1.5px solid #d7e4ec;
  border-radius: 8px;
  grid-template-columns: max-content 42px max-content;
  justify-content: center;
  gap: 16px;
  min-height: 58px;
  padding: 10px 14px;
}

.gi4-g5-order-list {
  display: grid;
  gap: 18px;
}

.gi4-g5-order-line {
  display: grid;
  gap: 12px;
  justify-items: center;
  padding: 16px 16px 22px;
  border: 1.5px solid #d7e4ec;
  border-radius: 8px;
  font-size: 18px;
  position: relative;
}

.gi4-g5-order-source {
  font-size: 18px;
}

.gi4-g5-order-answer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 80%;
  margin-top: 12px;
}

.gi4-g5-order-answer .gi4-line.long {
  flex: 1;
  min-width: 0;
}

.gi4-g5-neighbor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 28px;
}

.gi4-g5-neighbor-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 17px;
}

.gi4-g5-neighbor-table th,
.gi4-g5-neighbor-table td {
  border: 1.3px solid #cbd5e1;
  text-align: center;
  height: 38px;
}

.gi4-g5-neighbor-table th {
  color: #111827;
  font-weight: 900;
  font-size: 18px;
  line-height: 1.15;
  padding: 6px 4px;
  overflow-wrap: anywhere;
  hyphens: auto;
}

.gi4-g5-neighbor-table .gi4-g5-neighbor-actions {
  width: 32px;
  border: 0;
  background: transparent;
  padding: 0;
}

#werkblad .gi4-g5-neighbor-actions .row-delete-btn {
  position: static !important;
  transform: none !important;
  width: 22px;
  height: 22px;
  line-height: 18px;
  margin: 0 auto;
}

.gi4-g5-neighbor-table tr.example td {
  background: #ffddb0;
}

.gi4-g5-neighbor-table tr.example .gi4-g5-neighbor-actions {
  background: transparent;
}

@media print {
  .gi4-g5-neighbor-table .gi4-g5-neighbor-actions {
    display: none !important;
  }
}

html.exporting .gi4-g5-neighbor-table .gi4-g5-neighbor-actions {
  display: none !important;
}

.gi4-g5-jumps {
  display: grid;
  gap: 24px;
}

.gi4-g5-jump-row {
  position: relative;
  display: grid;
  gap: 16px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-jump-tag {
  justify-self: start;
  border: 1.8px solid #fb7c20;
  border-radius: 12px;
  background: #ffd5a8;
  padding: 8px 22px;
  font-size: 18px;
}

.gi4-g5-jump-axis {
  position: relative;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
  align-items: end;
  padding-bottom: 20px;
  border-bottom: 2px solid #6e9faf;
}

.gi4-g5-jump-axis::after {
  content: "";
  position: absolute;
  right: -2px;
  bottom: 15px;
  width: 10px;
  height: 10px;
  border-top: 2px solid #6e9faf;
  border-right: 2px solid #6e9faf;
  transform: rotate(45deg);
}

.gi4-g5-jump-axis > div {
  position: relative;
  min-height: 44px;
  border: 1.6px solid #6e9faf;
  background: #fff;
  display: grid;
  place-items: center;
  font-size: 17px;
}

.gi4-g5-jump-axis > div::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -21px;
  height: 20px;
  border-left: 2px solid #6e9faf;
}

.gi4-g5-jump-axis > div.center {
  background: #ffddb0;
  border-color: #fb7c20;
  font-size: 18px;
}

.gi4-g5-riddle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.gi4-g5-riddle-card {
  position: relative;
  border: 1.8px solid #fb7c20;
  border-radius: 12px;
  padding: 16px 20px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-riddle-card p {
  margin: 0 0 9px;
  font-size: 18px;
  line-height: 1.35;
}

.gi4-g5-riddle-answer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 18px;
}

.gi4-g5-simplify-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.gi4-g5-simplify-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  padding: 14px 16px 16px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-simplify-strip {
  display: grid;
  gap: 0;
  margin-bottom: 14px;
}

.gi4-g5-simplify-strip-row {
  display: grid;
  grid-template-columns: repeat(var(--den), 1fr);
  height: 24px;
  border: 1.4px solid #6b7280;
  border-bottom-width: 0;
  background: #fff;
}

.gi4-g5-simplify-strip-row:last-child {
  border-bottom-width: 1.4px;
}

.gi4-g5-simplify-strip-row span {
  border-left: 1.2px solid #6b7280;
}

.gi4-g5-simplify-strip-row span:first-child {
  border-left: 0;
}

.gi4-g5-simplify-strip-row span.solution-fill {
  background: #fff;
}

.solutions-mode .gi4-g5-simplify-strip-row span.solution-fill {
  background: var(--eq-fill, #b9d87a);
}

.gi4-g5-simplify-calc {
  display: grid;
  grid-template-columns: 34px 62px 46px 22px 46px 34px 62px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin: 10px 0 12px;
  font-size: 18px;
}

.gi4-g5-simplify-calc.compact {
  grid-template-columns: 28px 56px 46px 22px 46px 28px 56px;
}

.gi4-g5-simplify-calc.arrows-only {
  min-height: 112px;
}

.gi4-g5-fraction-arrow-work {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 12px auto 16px;
  min-height: 160px;
  width: 260px;
}

.gi4-g5-fraction-arrow-label {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 4px;
  font-size: 18px;
  width: 98px;
  left: 88px;
}

.gi4-g5-fraction-arrow-label.top {
  top: 6px;
}

.gi4-g5-fraction-arrow-label.bottom {
  bottom: 4px;
}

.gi4-g5-fraction-arrow-label .gi4-line.short {
  min-width: 58px;
}

.gi4-g5-fraction-arrow-equation {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 20px;
}

.gi4-g5-fraction-arrow-svg {
  position: absolute;
  left: 0;
  top: 0;
  width: 260px;
  height: 160px;
  pointer-events: none;
  overflow: visible;
  z-index: 3;
}

.gi4-g5-fraction-arrow-path {
  fill: none;
  stroke: #222;
  stroke-width: 2;
  stroke-linecap: round;
}

.gi4-g5-fraction-arrow-svg marker path {
  fill: #222;
}

.gi4-g5-simplify-info,
.gi4-g5-simplify-final {
  margin-top: 9px;
  font-size: 16px;
  line-height: 1.35;
}

.gi4-g5-simplify-final {
  font-weight: 700;
}

.gi4-g5-equivalent-card {
  position: relative;
}

.gi4-g5-common-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 20px;
}

.gi4-g5-common-compare-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  background: #fff;
  padding: 14px 12px 16px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-common-top,
.gi4-g5-common-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 20px;
}

.gi4-g5-common-work {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 6px 0 2px;
}

.gi4-g5-common-work .gi4-g5-fraction-arrow-work {
  width: 190px;
  min-height: 150px;
  margin: 0 auto;
}

.gi4-g5-common-work .gi4-g5-fraction-arrow-svg {
  width: 190px;
  height: 150px;
  transform: scale(.72);
  transform-origin: center;
}

.gi4-g5-common-work .gi4-g5-fraction-arrow-label {
  left: 58px;
  width: 88px;
  font-size: 17px;
}

.gi4-g5-common-work .gi4-g5-fraction-arrow-label .gi4-line.short {
  min-width: 52px;
}

.gi4-g5-common-work .gi4-g5-fraction-arrow-equation {
  gap: 10px;
  font-size: 18px;
}

.gi4-g5-common-short-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px 20px;
}

.gi4-g5-common-short-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  background: #fff;
  padding: 18px 16px 20px;
  min-height: 190px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-common-short-card.example {
  background: #ffddb0;
  border-color: #fb7c20;
}

.gi4-g5-common-short-top {
  display: grid;
  grid-template-columns: 90px 48px 90px;
  align-items: center;
  justify-content: center;
  justify-items: center;
  gap: 0;
  font-size: 21px;
  margin: 0 auto;
  width: 228px;
}

.gi4-g5-common-down-arrows {
  display: grid;
  grid-template-columns: 90px 48px 90px;
  width: 228px;
  margin: 4px auto 2px;
}

.gi4-g5-common-down-arrows span {
  position: relative;
  height: 76px;
  justify-self: center;
  width: 18px;
}

.gi4-g5-common-down-arrows span:first-child {
  grid-column: 1;
}

.gi4-g5-common-down-arrows span:last-child {
  grid-column: 3;
}

.gi4-g5-common-down-arrows span::before {
  content: "";
  position: absolute;
  left: 7px;
  top: -2px;
  width: 4px;
  height: 56px;
  background: #222;
}

.gi4-g5-common-down-arrows span::after {
  content: "";
  position: absolute;
  left: 1px;
  top: 50px;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 18px solid #222;
}

.gi4-g5-common-short-bottom {
  display: grid;
  grid-template-columns: 90px 48px 90px;
  width: 228px;
  margin: 0 auto;
  justify-items: center;
}

.gi4-g5-common-short-bottom > :first-child {
  grid-column: 1;
}

.gi4-g5-common-short-bottom > :last-child {
  grid-column: 3;
}

.gi4-g5-arrow-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 18px;
}

.gi4-g5-arrow-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  padding: 10px 12px;
  min-height: 186px;
  display: grid;
  align-items: center;
}

.gi4-g5-fraction-short-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px 46px;
  padding: 8px 12px 14px;
}

.gi4-g5-fraction-short-row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 58px;
  font-size: 18px;
}

.gi4-g5-fraction-series-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 24px;
  align-items: start;
}

.gi4-g5-fraction-series {
  position: relative;
  display: grid;
  grid-template-columns: 76px repeat(4, minmax(58px, 1fr));
  align-items: stretch;
  justify-content: center;
  width: 100%;
  margin: 0;
}

.gi4-g5-fraction-flower,
.gi4-g5-fraction-option {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 66px;
  border: 1.2px solid #cbd5e1;
  background: #fff;
  padding: 6px 8px;
}

.gi4-g5-fraction-flower {
  border: 0;
  background: #9ed38f;
  border-radius: 48% 52% 44% 56%;
  font-weight: 800;
}

.solutions-mode .gi4-g5-fraction-option.solution-equivalent {
  background: #e5f4d7;
}

.solutions-mode .gi4-g5-fraction-option.solution-simplest {
  outline: 3px solid #79b854;
  outline-offset: -4px;
}

.gi4-g5-fraction-color-wrap {
  display: grid;
  gap: 18px;
  justify-items: center;
}

.gi4-g5-fraction-color-table {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 74px);
  border: 1.3px solid #cbd5e1;
}

.gi4-g5-fraction-color-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 68px;
  border-right: 1.2px solid #cbd5e1;
  border-bottom: 1.2px solid #cbd5e1;
  background: #fff;
  padding: 7px 9px;
}

.gi4-g5-fraction-color-cell:nth-child(6n + 1) {
  border-left: 0;
}

.solutions-mode .gi4-g5-fraction-color-cell.solution-group-0 {
  background: #dbeafe;
}

.solutions-mode .gi4-g5-fraction-color-cell.solution-group-1 {
  background: #dcfce7;
}

.solutions-mode .gi4-g5-fraction-color-cell.solution-group-2 {
  background: #fef3c7;
}

.solutions-mode .gi4-g5-fraction-color-cell.solution-group-3 {
  background: #fce7f3;
}

.gi4-g5-fraction-operation-color-wrap {
  display: grid;
  gap: 18px;
}

.gi4-g5-fraction-operation-color-table {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(128px, 1fr));
  border: 1.3px solid #cbd5e1;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-fraction-operation-color-cell {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 9px 12px;
  border-right: 1.2px solid #cbd5e1;
  border-bottom: 1.2px solid #cbd5e1;
  font-size: 19px;
  line-height: 1.1;
  white-space: nowrap;
}

.gi4-g5-fraction-operation-color-cell:nth-child(5n) {
  border-right: 0;
}

.gi4-g5-fraction-operation-color-cell:nth-last-child(-n + 5) {
  border-bottom: 0;
}

.gi4-g5-fraction-operation-color-cell .gi4-fraction-box {
  margin: 0 2px;
}

.gi4-g5-fraction-operation-color-cell .gi4-mixed-number {
  display: inline-flex;
  align-items: center;
}

.solutions-mode .gi4-g5-fraction-operation-color-cell.solution-group-0 {
  background: #dbeafe;
}

.solutions-mode .gi4-g5-fraction-operation-color-cell.solution-group-1 {
  background: #dcfce7;
}

.solutions-mode .gi4-g5-fraction-operation-color-cell.solution-group-2 {
  background: #fef3c7;
}

.solutions-mode .gi4-g5-fraction-operation-color-cell.solution-group-3 {
  background: #fce7f3;
}

.solutions-mode .gi4-g5-fraction-operation-color-cell.solution-group-4 {
  background: #ede9fe;
}

.solutions-mode .gi4-g5-fraction-operation-color-cell.solution-group-5 {
  background: #ffedd5;
}

.gi4-g5-info-card {
  position: relative;
  border: 2px solid #fb923c;
  border-radius: 8px;
  background: #fff7ed;
  padding: 12px 14px 14px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-info-title {
  text-align: center;
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 10px;
}

.gi4-g5-info-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border: 1.4px solid #fb923c;
  background: #fff;
}

.gi4-g5-info-cols section {
  background: #fff;
  border: 0;
  padding: 10px 12px 12px;
}

.gi4-g5-info-cols section:first-child {
  border-right: 1.4px solid #fb923c;
}

.gi4-g5-info-cols h4 {
  margin: -10px -12px 8px;
  padding: 7px 9px;
  background: #fdba74;
  color: #9a3412;
  font-size: 16px;
}

.gi4-g5-info-cols p,
.gi4-g5-info-cols ol {
  margin: 6px 0;
  line-height: 1.35;
}

.gi4-g5-info-cols ol {
  padding-left: 24px;
}

.gi4-g5-info-cols .example {
  color: #0f8dc4;
  font-weight: 800;
}

.gi4-g5-info-example {
  display: grid;
  gap: 4px;
  margin: 8px 0 6px;
  font-size: 13px;
}

.gi4-g5-info-divisors,
.gi4-g5-info-multiples {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: center;
  gap: 4px;
}

.gi4-g5-info-divisors span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 22px;
  margin-right: 3px;
  border: 1px solid #cbd5e1;
  background: #fff;
}

.gi4-g5-info-divisors .hit,
.gi4-g5-info-multiples b {
  color: #0f8dc4;
  font-weight: 900;
}

.gi4-g5-info-divisors .hit {
  border: 2px solid #7dd3fc;
  border-radius: 50%;
}

.gi4-g5-divisibility-cloud {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(72px, 1fr));
  gap: 22px 36px;
  padding: 22px 40px;
  text-align: center;
  font-size: 22px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-divisibility-cloud span {
  padding: 4px;
  border-radius: 999px;
}

.solutions-mode .gi4-g5-divisibility-cloud .div-by-10 {
  outline: 4px solid #22c55e;
}

.solutions-mode .gi4-g5-divisibility-cloud .div-by-5 {
  box-shadow: 0 0 0 7px #ef4444 inset;
}

.solutions-mode .gi4-g5-divisibility-cloud .div-by-2 {
  background: #bfdbfe;
}

.solutions-mode .gi4-g5-divisibility-cloud .div-by-3 {
  text-decoration: underline 5px #facc15;
  text-underline-offset: 7px;
}

.gi4-g5-divisibility-rules {
  position: relative;
  display: grid;
  grid-template-columns: minmax(260px, 42%) minmax(260px, 42%);
  justify-content: space-between;
  gap: 110px;
  margin: 14px 10px 4px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-divisibility-rules > div {
  display: grid;
  gap: 10px;
}

.gi4-g5-connect-rule {
  position: relative;
  min-height: 42px;
  border: 1.4px solid #c8d3dd;
  border-radius: 8px;
  background: #fff;
  padding: 9px 14px;
  display: flex;
  align-items: center;
  font-size: 16px;
  max-width: 520px;
}

.gi4-g5-connect-rule i {
  position: absolute;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-radius: 50%;
  background: #111827;
}

.gi4-g5-connect-rule.dot-right i {
  right: -5px;
}

.gi4-g5-connect-rule.dot-left i {
  left: -5px;
}

.gi4-g5-divisors-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.gi4-g5-divisors-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  padding: 12px 10px;
  text-align: center;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-divisors-card.example {
  background: #ffddb0;
  border-color: #fb7c20;
}

.gi4-g5-divisor-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin-top: 8px;
  border-top: 1.4px solid #555;
}

.gi4-g5-divisor-list span {
  min-height: 31px;
  border-bottom: 1px solid #d8e2ec;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px 4px;
}

.gi4-g5-divisor-list span:nth-child(odd) {
  border-right: 1.4px solid #8b95a1;
}

.gi4-g5-gcd-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 22px;
}

.gi4-g5-gcd-card,
.gi4-g5-lcm-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  padding: 14px 14px 16px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-gcd-card {
  min-height: 310px;
}

.gi4-g5-gcd-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 46px;
  margin: 12px auto 14px;
  width: min(320px, 82%);
}

.gi4-g5-gcd-cols > div {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: start;
  min-height: 142px;
}

.gi4-g5-gcd-cols > div strong {
  min-width: 74px;
  padding-bottom: 2px;
  border-bottom: 1.5px solid #555;
  text-align: center;
}

.gi4-g5-gcd-writing-line {
  display: block;
  width: 1.4px;
  height: 114px;
  background: #9ca3af;
}

.gi4-g5-gcd-col-solutions {
  position: absolute;
  left: 50%;
  top: 36px;
  transform: translateX(10px);
  min-width: 74px;
  line-height: 1.35;
  color: #0f8dc4;
}

.gi4-g5-gcd-card p,
.gi4-g5-lcm-card p {
  margin: 12px 0 0;
  line-height: 1.45;
}

.gi4-g5-multiples-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 18px;
}

.gi4-g5-multiples-table th,
.gi4-g5-multiples-table td {
  border: 1.3px solid #cbd5e1;
  padding: 9px 12px;
  text-align: left;
}

.gi4-g5-multiples-table th {
  width: 190px;
  background: #ffddb0;
}

.gi4-g5-multiples-table tr.example td {
  background: #fff7ed;
  color: #0f8dc4;
  font-weight: 800;
}

.gi4-g5-multiples-table .gi4-table-delete-cell {
  width: 1px;
  padding: 0;
  border-left: 0;
  background: transparent;
}

.gi4-g5-lcm-grid {
  display: grid;
  gap: 18px;
}

.gi4-g5-lcm-lines {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}

.gi4-g5-lcm-lines th {
  width: 44px;
  background: #ffddb0;
  border: 1.3px solid #cbd5e1;
}

.gi4-g5-lcm-lines td {
  border: 1.3px solid #cbd5e1;
  padding: 8px 10px;
}

.gi4-g5-match-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px 22px;
}

.gi4-g5-match-card {
  position: relative;
  min-height: 94px;
  border: 1.6px solid #aeb4bc;
  border-radius: 10px;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
  padding: 12px;
  font-size: 18px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-match-card strong {
  display: block;
}

.solutions-mode .gi4-g5-match-card.solution-3 {
  background: #dbeafe;
}

.solutions-mode .gi4-g5-match-card.solution-6 {
  background: #dcfce7;
}

.solutions-mode .gi4-g5-match-card.solution-10 {
  background: #fef3c7;
}

.solutions-mode .gi4-g5-match-card.solution-12 {
  background: #fce7f3;
}

.solutions-mode .gi4-g5-match-card.solution-14 {
  background: #ede9fe;
}

.solutions-mode .gi4-g5-match-card.solution-20 {
  background: #ffedd5;
}

.solutions-mode .gi4-g5-match-card.solution-24 {
  background: #ccfbf1;
}

.gi4-neighbor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 28px;
}

.gi4-neighbor-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-neighbor-table th,
.gi4-neighbor-table td {
  border: 1.5px solid #d3dee8;
  text-align: center;
}

.gi4-neighbor-table th {
  min-height: 48px;
  padding: 9px 6px;
  font-size: 18px;
  font-weight: 500;
  color: #1f2937;
}

.gi4-neighbor-table th:nth-child(2) {
  background: #fff;
  border-top-color: transparent;
}

.gi4-neighbor-table td {
  height: 42px;
  font-size: 18px;
  color: #1f2937;
}

.gi4-neighbor-table tr.example td {
  background: #ffddb0;
}

.gi4-neighbor-table tr.example td:first-child,
.gi4-neighbor-table tr.example td:last-child {
  color: #0f8dc4;
  font-weight: 500;
}

.gi4-neighbor-table .gi4-line.long {
  min-width: 0;
  width: 74%;
  max-width: 100%;
}

.gi4-neighbor-yellow { background: #ffd414; }
.gi4-neighbor-green { background: #4fb94f; }
.gi4-neighbor-blue { background: #8aa9cf; }
.gi4-neighbor-red { background: #ef2b2d; }
.gi4-neighbor-purple { background: #c4a5fd; }

.gi4-build-number-card {
  display: grid;
  grid-template-columns: minmax(230px, 34%) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
  --build-row-height: 30px;
}

.gi4-build-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-build-table th,
.gi4-build-table td {
  border: 1.3px solid #8fa1b5;
  text-align: center;
  height: var(--build-row-height);
}

.gi4-build-table th {
  color: #111827;
  font-weight: 900;
}

.gi4-build-table .gi4-line {
  width: 78%;
}

.gi4-build-number-list {
  display: grid;
  grid-template-rows: repeat(var(--build-rows), var(--build-row-height));
  gap: 0;
  font-size: 17px;
  padding-top: var(--build-row-height);
}

.gi4-build-number-row {
  display: grid;
  grid-template-columns: minmax(150px, max-content) minmax(120px, 1fr);
  align-items: end;
  gap: 8px;
  min-height: var(--build-row-height);
}

.gi4-short-value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px 14px;
}

.gi4-short-value-card {
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 9px 10px 10px;
  display: grid;
  justify-items: center;
  gap: 7px;
}

.gi4-short-value-number {
  display: inline-flex;
  border: 1.4px solid #8a8f99;
  background: #fff;
  font-size: 18px;
  font-weight: 900;
}

.gi4-short-value-number span {
  min-width: 22px;
  padding: 3px 5px;
  text-align: center;
}

.gi4-short-value-number .marked {
  position: relative;
}

.gi4-short-value-number .marked::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  bottom: 2px;
  border-bottom: 2px solid #111827;
}

.gi4-short-value-row {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  justify-content: center;
  font-weight: 800;
}

.gi4-equivalent-leftover {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 16px;
}

.gi4-fraction-card,
.gi4-fraction-color-card,
.gi4-fraction-whole-card {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
  padding: 10px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-fraction-card {
  display: grid;
  grid-template-columns: 1fr 46px;
  align-items: center;
  gap: 8px;
  min-height: 106px;
}

.gi4-fraction-shape {
  display: block;
  width: 100%;
  max-width: 150px;
  height: 92px;
  margin: 0 auto;
}

.gi4-fraction-side {
  display: grid;
  gap: 8px;
  justify-items: center;
}

.gi4-fraction-instructions {
  display: grid;
  gap: 7px;
  margin: 0 0 16px;
  color: #1f2937;
  font-size: 16px;
  line-height: 1.35;
}

.gi4-fraction-instruction {
  display: grid;
  grid-template-columns: 16px 1fr;
  align-items: start;
  gap: 8px;
}

.gi4-check-box {
  width: 13px;
  height: 13px;
  margin-top: 4px;
  border: 1.6px solid #9fc2cc;
  background: #fff;
}

.gi4-fraction-box {
  display: inline-grid;
  grid-template-rows: 28px 6px 28px;
  width: 40px;
  align-items: center;
  vertical-align: middle;
  margin: 0 6px;
}

.gi4-fraction-cell {
  display: grid;
  place-items: center;
  border: 1.5px solid #cbd5e1;
  min-height: 28px;
  font-weight: 700;
  background: #fff;
  border-radius: 6px;
}

.gi4-fraction-stroke {
  display: block;
  width: 38px;
  height: 0;
  border-top: 2px solid #6b7280;
  justify-self: center;
}

.gi4-fraction-color-card {
  min-height: 210px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.gi4-fraction-color-text {
  display: grid;
  gap: 12px;
  font-size: 15px;
}

.gi4-fraction-lines {
  display: grid;
  gap: 22px;
}

.gi4-fraction-line-row {
  position: relative;
  padding: 20px 8px 10px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-fraction-axis {
  position: relative;
  height: 92px;
  border-bottom: 2px solid #9bc4cf;
  margin: 0 18px 10px;
}

.gi4-fraction-axis::after {
  content: "";
  position: absolute;
  right: -7px;
  bottom: -5px;
  width: 9px;
  height: 9px;
  border-top: 2px solid #9bc4cf;
  border-right: 2px solid #9bc4cf;
  transform: rotate(45deg);
}

.gi4-fraction-axis > span {
  position: absolute;
  bottom: 4px;
  font-weight: 700;
  color: #334155;
}

.gi4-fraction-axis > span:first-child { left: -12px; }
.gi4-fraction-axis > span:nth-child(2) { right: calc(4% - 10px); }

.gi4-fraction-axis i {
  position: absolute;
  bottom: -1px;
  height: 12px;
  border-left: 1.5px solid #9bc4cf;
}

.gi4-fraction-axis-answer {
  position: absolute;
  bottom: 16px;
  transform: translateX(-50%);
}

.gi4-fraction-axis-answer .gi4-fraction-box {
  margin: 0;
}

.gi4-fraction-bar {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  height: 18px;
  margin: 6px 20px;
  background: #fff;
}

.gi4-fraction-bar span {
  border: 1px solid #dbe7ec;
  border-left-width: 0;
  background: #fff;
}

.gi4-fraction-bar span:first-child {
  border-left-width: 1px;
}

.gi4-fraction-bar.green span.filled { background: #4fb94f; }
.gi4-fraction-bar.yellow span.filled { background: #ffd414; }
.gi4-fraction-bar.orange span.filled { background: #ff8f1f; }

.gi4-fraction-concepts {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-fraction-concepts td {
  border: 1px solid #d3dee8;
  padding: 8px 10px;
  text-align: center;
}

.gi4-fraction-concepts td:first-child {
  width: 70px;
  color: #1f2937;
  font-weight: 800;
}

.gi4-concept-fraction .blue {
  color: #0f8dc4;
}

.solutions-mode .gi4-fraction-concepts td.gi4-concept-correct {
  background: #dff3ff;
  color: #0f8dc4;
  font-weight: 800;
  box-shadow: inset 0 0 0 2px #0f8dc4;
}

.gi4-concept-fraction.stacked {
  display: inline-grid;
  grid-template-rows: 18px 3px 18px;
  min-width: 26px;
  align-items: center;
  justify-items: center;
  line-height: 1;
}

.gi4-concept-fraction.stacked span:nth-child(2) {
  display: block;
  width: 26px;
  height: 0;
  border-top: 2px solid currentColor;
}

.gi4-fraction-whole-card {
  display: grid;
  gap: 12px;
  font-size: 15px;
}

.gi4-fraction-whole-grid {
  display: grid;
  grid-template-columns: repeat(7, 22px);
  grid-template-rows: repeat(2, 22px);
  justify-content: center;
  gap: 0;
  margin: 8px auto 14px;
}

.gi4-fraction-whole-grid span {
  width: 22px;
  height: 22px;
  border: 1px solid #bfd0d8;
  background: #fff;
  margin: -1px 0 0 -1px;
}

.gi4-fraction-whole-grid span.filled {
  background: #9b8ac6;
}

.gi4-fraction-whole-grid span.solution-fill {
  background: #fff;
}

.solutions-mode .gi4-fraction-whole-grid span.solution-fill {
  background: #9b8ac6;
}

.gi4-fraction-stem-grid {
  display: grid;
  gap: 14px;
}

.gi4-fraction-stem-divide,
.gi4-fraction-stem-recognize,
.gi4-fraction-stem-amount,
.gi4-fraction-stem-order,
.gi4-fraction-stem-drawing-order,
.gi4-fraction-stem-drawing,
.gi4-fraction-stem-calculate {
  padding: 16px 20px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-fraction-stem-divide {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  align-items: end;
}

.gi4-fraction-stem-divide .stem-divide-item {
  display: grid;
  justify-items: center;
  gap: 8px;
}

.gi4-fraction-stem-recognize {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
  min-height: 128px;
}

.gi4-fraction-stem-recognize .stem-frac {
  position: relative;
  display: inline-grid;
  place-items: center;
}

.solutions-mode .gi4-fraction-stem-recognize .equivalent-fraction::before,
.solutions-mode .gi4-fraction-stem-recognize .equivalent-fraction::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  top: 19px;
  height: 3px;
  background: #dc2626;
  border-radius: 999px;
  z-index: 3;
}

.solutions-mode .gi4-fraction-stem-recognize .equivalent-fraction::before {
  transform: rotate(34deg);
}

.solutions-mode .gi4-fraction-stem-recognize .equivalent-fraction::after {
  transform: rotate(-34deg);
}

.solutions-mode .gi4-fraction-stem-recognize .unit-fraction {
  outline: 2px solid #0f8dc4;
  outline-offset: 5px;
  border-radius: 999px;
}

.solutions-mode .gi4-fraction-stem-recognize .whole-fraction {
  text-decoration: line-through;
  text-decoration-color: #dc2626;
  text-decoration-thickness: 3px;
}

.gi4-fraction-stem-recognize .gi4-solution-answer {
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  white-space: nowrap;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-2 .gi4-fraction-box {
  background: #dbeafe;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #dbeafe;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-3 .gi4-fraction-box {
  background: #dcfce7;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #dcfce7;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-4 .gi4-fraction-box {
  background: #fef3c7;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #fef3c7;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-5 .gi4-fraction-box {
  background: #fce7f3;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #fce7f3;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-6 .gi4-fraction-box {
  background: #ede9fe;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #ede9fe;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-7 .gi4-fraction-box {
  background: #ffedd5;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #ffedd5;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-8 .gi4-fraction-box {
  background: #cffafe;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #cffafe;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-9 .gi4-fraction-box {
  background: #fee2e2;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #fee2e2;
}

.solutions-mode .gi4-fraction-stem-recognize .stem-frac.same-den-10 .gi4-fraction-box {
  background: #ecfccb;
  border-radius: 8px;
  box-shadow: 0 0 0 5px #ecfccb;
}

.gi4-fraction-stem-amount,
.gi4-fraction-stem-calculate {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px 42px;
  font-size: 18px;
}

.gi4-fraction-stem-amount > div,
.gi4-fraction-stem-calculate > div {
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 7px;
}

.gi4-fraction-stem-order {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.gi4-fraction-stem-order .stem-order-row {
  display: grid;
  gap: 12px;
}

.gi4-fraction-stem-order .stem-order-fracs,
.gi4-fraction-stem-order .stem-order-answer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.gi4-fraction-stem-drawing-order {
  display: grid;
  gap: 28px;
}

.stem-drawing-order-row {
  display: grid;
  gap: 14px;
}

.stem-drawing-order-table {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1.4px solid #a9bfca;
}

.stem-drawing-order-cell {
  min-height: 190px;
  display: grid;
  grid-template-rows: 1fr auto;
  justify-items: center;
  align-items: center;
  gap: 8px;
  padding: 10px 8px 14px;
  border-right: 1.2px solid #a9bfca;
}

.stem-drawing-order-cell:last-child {
  border-right: 0;
}

.stem-drawing-order-cell .gi4-fraction-shape {
  width: 130px;
  height: 98px;
}

.gi4-fraction-stem-order-visual.bar {
  width: 92px;
  height: 140px;
}

.stem-drawing-order-answer {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
}

.gi4-fraction-stem-drawing {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.gi4-fraction-stem-drawing .stem-drawing-row {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 18px;
}

.gi4-fraction-stem-drawing .stem-drawing-row .gi4-fraction-shape {
  flex: 0 0 100%;
}

.gi4-quantity-grid {
  display: grid;
  gap: 14px;
}

.gi4-quantity-grid.part,
.gi4-quantity-grid.operator,
.gi4-quantity-grid.solve {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-quantity-grid.quick,
.gi4-quantity-grid.same {
  grid-template-columns: minmax(0, 1fr);
}

.gi4-quantity-grid.questions,
.gi4-quantity-grid.compareSamePart,
.gi4-quantity-grid.compareSameWhole,
.gi4-quantity-grid.compareSolve,
.gi4-quantity-grid.compareQuick {
  grid-template-columns: minmax(0, 1fr);
}

.gi4-quantity-intro,
.gi4-quantity-part-card,
.gi4-quantity-operator-card,
.gi4-quantity-questions-card,
.gi4-quantity-quick-card,
.gi4-quantity-same-card,
.gi4-quantity-compare-card,
.gi4-quantity-compare-solve-card,
.gi4-quantity-compare-quick-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-quantity-intro {
  border-color: #8cc63f;
  background: #eef8dd;
}

.gi4-quantity-intro h3 {
  margin: 0 0 10px;
  text-align: center;
}

.gi4-quantity-intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.gi4-quantity-intro-card {
  display: grid;
  justify-items: center;
  gap: 12px;
  min-height: 220px;
  padding: 12px;
  border: 1.4px solid #8cc63f;
  border-radius: 8px;
  background: #fff;
  text-align: center;
}

.gi4-quantity-array {
  display: grid;
  justify-content: center;
  gap: 5px;
  padding: 8px;
  border: 1.5px solid #ff6b6b;
  border-radius: 8px;
  background: #fff;
}

.gi4-quantity-array.balls {
  grid-template-columns: repeat(var(--qty-cols), 22px);
}

.gi4-quantity-array.blocks {
  grid-template-columns: repeat(var(--qty-cols), 24px);
}

.gi4-quantity-array span {
  width: 20px;
  height: 20px;
  border: 1.2px solid #cbd5e1;
  background: var(--qty-empty, #fef3c7);
}

.gi4-quantity-array.balls span {
  border-radius: 50%;
}

.gi4-quantity-array span.filled {
  background: var(--qty-color, #22c55e);
}

.gi4-quantity-bar-wrap {
  display: grid;
  justify-items: center;
  width: min(100%, 245px);
  margin: 0 auto;
}

.gi4-quantity-bar-total {
  width: 100%;
  height: 18px;
  display: grid;
  place-items: center;
  border: 1.3px solid #9aa4b2;
  border-bottom: 0;
  font-weight: 800;
  font-size: 12px;
}

.gi4-quantity-bar {
  display: grid;
  width: 100%;
  height: 30px;
  border: 1.5px solid #9aa4b2;
  background: #fff;
}

.gi4-quantity-bar span {
  border-left: 1.3px solid #9aa4b2;
}

.gi4-quantity-bar span:first-child {
  border-left: 0;
}

.gi4-quantity-bar span.filled {
  background: #bae6fd;
}

.gi4-quantity-work,
.gi4-quantity-operator-work {
  display: grid;
  gap: 6px;
  justify-items: stretch;
  font-size: 15px;
  width: min(100%, 300px);
}

.gi4-quantity-work-row {
  display: grid;
  grid-template-columns: 124px 74px 22px 62px;
  align-items: center;
  gap: 5px;
}

.gi4-quantity-work-label {
  white-space: nowrap;
}

.gi4-quantity-work-row b {
  color: #6f9eaa;
  font-size: 18px;
  text-align: center;
}

.gi4-quantity-empty-slot {
  min-width: 62px;
}

.gi4-quantity-bar-brace {
  justify-self: start;
  height: 18px;
  margin-top: -1px;
  border-bottom: 1.5px solid #9aa4b2;
  border-left: 1.5px solid transparent;
  border-right: 1.5px solid transparent;
  border-radius: 0 0 50% 50%;
  text-align: center;
  font-weight: 800;
}

.gi4-quantity-strip-model {
  display: grid;
  justify-items: center;
  width: 100%;
}

.gi4-quantity-answer,
.gi4-quantity-final {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-weight: 800;
}

.gi4-quantity-part-card {
  display: grid;
  grid-template-columns: minmax(120px, .85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: 14px;
}

.gi4-quantity-part-text {
  display: grid;
  gap: 7px;
  font-size: 14px;
}

.gi4-quantity-frac-line {
  margin-top: 4px;
  font-weight: 700;
}

.gi4-quantity-operator-card {
  display: grid;
  justify-items: center;
  gap: 10px;
  min-height: 238px;
}

.gi4-quantity-operator-card.solve {
  min-height: 190px;
}

.gi4-quantity-card-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  text-align: center;
}

.gi4-quantity-questions-card {
  display: grid;
  justify-items: center;
  gap: 12px;
}

.gi4-quantity-question-lines {
  width: 100%;
  line-height: 2;
  text-align: left;
}

.gi4-quantity-color-question-row {
  display: flex;
  align-items: center;
  gap: 70px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.gi4-quantity-color-question-row > span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.gi4-quantity-quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.gi4-quantity-quick-item {
  position: relative;
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  justify-content: start;
  column-gap: 4px;
  min-height: 82px;
  padding: 10px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
}

.gi4-quantity-quick-item .row-delete-btn {
  top: -10px !important;
  right: -10px !important;
}

.gi4-quantity-note-lines {
  grid-column: 1 / -1;
  height: 34px;
  width: 50%;
  justify-self: end;
  margin-top: 10px;
  transform: translateX(24px);
  border-top: 1.4px solid #cbd5e1;
  border-bottom: 1.4px solid #cbd5e1;
}

.gi4-quantity-same-card {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px 28px;
  font-weight: 700;
}

.gi4-quantity-same-card > span {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.gi4-quantity-compare-card {
  display: grid;
  justify-items: center;
  gap: 12px;
}

.gi4-quantity-compare-strips {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  width: 100%;
}

.gi4-quantity-compare-strip {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 48px;
  align-items: center;
  gap: 8px;
}

.gi4-quantity-compare-strip .gi4-quantity-bar-wrap {
  width: 100%;
}

.gi4-quantity-compare-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex-wrap: wrap;
  font-weight: 700;
}

.gi4-quantity-compare-solve-card {
  display: grid;
  gap: 12px;
}

.gi4-quantity-compare-solve-top,
.gi4-quantity-compare-solve-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.gi4-quantity-compare-solve-card .gi4-quantity-operator-card {
  border: 0;
  padding: 0;
  min-height: 0;
}

.gi4-quantity-compare-quick-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 28px;
}

.gi4-quantity-compare-quick-row {
  position: relative;
  display: inline-grid;
  grid-template-columns: auto auto 46px auto auto;
  align-items: center;
  gap: 5px;
  font-weight: 700;
}

.gi4-quantity-compare-quick-row .row-delete-btn {
  top: -10px !important;
  right: -10px !important;
}

.gi4-g5-operator-intro {
  position: relative;
  border: 1.6px solid #8cc63f;
  border-radius: 10px;
  background: #eef8dd;
  padding: 20px 18px 18px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-operator-intro h3 {
  margin: 0 0 12px;
  text-align: center;
}

.gi4-g5-operator-intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.gi4-g5-operator-intro-panel {
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 14px;
  min-height: 255px;
  padding: 16px;
  border: 1.5px solid #8cc63f;
  border-radius: 9px;
  background: #fff;
  text-align: center;
}

.gi4-g5-operator-intro-panel.algebra {
  align-content: center;
}

.gi4-g5-operator-intro-calc-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 118px;
  align-items: center;
  gap: 14px;
  width: 100%;
}

.gi4-g5-operator-steps,
.gi4-g5-operator-rule {
  display: grid;
  gap: 6px;
  font-size: 16px;
  line-height: 1.35;
}

.gi4-g5-operator-rule {
  justify-items: center;
  font-style: italic;
}

.gi4-g5-operator-rule span:nth-child(3) {
  color: #ef4444;
}

.gi4-g5-operator-calc {
  display: grid;
  justify-items: start;
  gap: 10px;
  font-size: 18px;
  line-height: 1.2;
  padding-left: 4px;
}

.gi4-g5-operator-calc-line {
  display: flex;
  align-items: center;
  gap: 5px;
  min-height: 30px;
  white-space: nowrap;
}

.gi4-g5-operator-calc-line.indent {
  margin-left: 58px;
}

.gi4-g5-operator-calc-line.strong {
  font-weight: 800;
}

.gi4-g5-operator-answer {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 5px;
}

.gi4-green-text {
  color: #4fb94f;
  font-weight: 800;
}

.gi4-g5-operator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(260px, 1fr));
  gap: 16px 24px;
}

.gi4-g5-operator-card {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 16px;
  min-height: 275px;
  padding: 18px 24px 20px;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-operator-card-title {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 5px;
  font-weight: 800;
  color: #12314f;
  font-size: 18px;
}

.gi4-g5-operator-equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 66px;
  font-size: 18px;
}

.gi4-g5-operator-converted {
  display: inline-grid;
  grid-template-rows: 18px 2px 18px;
  justify-items: center;
  align-items: center;
  min-width: 142px;
  margin: 0 2px;
}

.gi4-g5-operator-converted .op-top {
  display: grid;
  grid-template-columns: 1fr 30px 1fr;
  align-items: center;
  justify-items: center;
  width: 100%;
  font-size: 21px;
  line-height: 1;
}

.gi4-g5-operator-op-slot {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  min-height: 20px;
}

.gi4-g5-operator-op-slot .gi4-solution-answer,
.gi4-g5-operator-op-slot .op-answer.always {
  position: relative;
  color: #0284c7;
  font-weight: 800;
  line-height: 1;
}

.solutions-mode .gi4-g5-operator-op-slot .op-placeholder {
  display: none;
}

.gi4-g5-operator-op-slot .op-answer.is-cancelled::after {
  content: "";
  position: absolute;
  left: -3px;
  right: -3px;
  top: 50%;
  border-top: 2px solid #7da7b8;
  transform: rotate(-28deg);
  transform-origin: center;
}

.gi4-g5-operator-op-slot .op-reduced {
  position: absolute;
  left: 60%;
  color: #0284c7;
  font-size: 13px;
  line-height: 1;
}

.gi4-g5-operator-op-slot .op-reduced.above {
  top: -15px;
}

.gi4-g5-operator-op-slot .op-reduced.below {
  bottom: -15px;
}

.gi4-g5-operator-converted .op-top b {
  font-weight: 500;
}

.gi4-g5-operator-converted .op-line {
  width: 100%;
  border-top: 1.8px solid #222;
}

.gi4-g5-operator-converted .op-bottom {
  font-size: 21px;
  line-height: 1;
}

.gi4-g5-operator-equation .boxed-solution {
  min-width: 48px;
  min-height: 28px;
  border: 1.3px solid #bdd4e2;
}

.gi4-g5-operator-note-lines {
  width: min(82%, 310px);
  display: grid;
  gap: 28px;
  margin: 18px 0 10px;
}

.gi4-g5-operator-note-lines span {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding-left: 26px;
  color: #0284c7;
  font-weight: 800;
  border-bottom: 1.3px solid #d7dfe7;
  min-height: 25px;
}

.gi4-g5-operator-final {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: auto;
  font-weight: 800;
}

.gi4-g5-operator-list-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: 0 28px;
  position: relative;
}

.gi4-g5-operator-list-grid::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  border-left: 2px solid #7da7b8;
  transform: translateX(-14px);
}

.gi4-g5-operator-list-row {
  position: relative;
  display: grid;
  grid-template-columns: max-content minmax(150px, 1fr);
  align-items: center;
  gap: 8px;
  min-height: 58px;
  padding: 4px 10px 4px 0;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-operator-list-row:nth-child(odd) {
  padding-right: 22px;
}

.gi4-g5-operator-list-row:nth-child(even) {
  padding-left: 22px;
}

.gi4-g5-operator-list-prompt {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 18px;
}

.gi4-g5-operator-list-answer {
  display: flex;
  align-items: center;
  min-height: 42px;
  border-bottom: 1.4px solid #d7dfe7;
}

.gi4-g5-operator-list-solution,
.gi4-g5-fraction-product-solution {
  align-items: center;
  gap: 5px;
  color: #0284c7;
  font-weight: 800;
}

.gi4-g5-operator-list-solution .gi4-g5-operator-converted {
  transform: scale(.82);
  transform-origin: left center;
  margin-right: -16px;
}

.gi4-g5-operator-list-helper {
  margin-left: 12px;
  color: #0284c7;
  font-weight: 800;
}

.gi4-g5-fraction-product-solution .gi4-mixed-number {
  display: inline-flex;
  vertical-align: middle;
}

.gi4-g5-operator-match-wrap {
  display: grid;
  gap: 18px;
}

.gi4-g5-operator-match-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 86px minmax(260px, 1fr);
  gap: 28px;
  align-items: stretch;
  padding: 18px 30px;
  border: 1.5px solid #c7d4df;
  border-radius: 10px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g5-operator-match-col {
  display: grid;
  grid-template-rows: repeat(4, minmax(66px, auto));
  gap: 26px;
}

.gi4-g5-operator-match-center {
  display: grid;
  grid-template-rows: repeat(4, 66px);
  gap: 26px;
  justify-items: center;
  align-items: center;
}

.gi4-g5-operator-match-exercise {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 66px;
  padding: 10px 16px;
  border: 2px solid var(--match-color, #7dd3fc);
  border-radius: 10px;
  background: #fff;
  font-size: 18px;
}

.gi4-g5-operator-match-prompt {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.gi4-g5-operator-match-line {
  flex: 1;
  min-width: 128px;
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-bottom: 1.5px solid #d6dee7;
  color: #0284c7;
  font-weight: 800;
}

.gi4-g5-operator-match-work {
  align-items: center;
  gap: 5px;
}

.gi4-g5-operator-match-result {
  position: relative;
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border: 2px solid #fbbf24;
  border-radius: 999px;
  background: #fff;
  color: #1f2937;
  font-size: 18px;
  font-weight: 800;
  z-index: 6;
}

.gi4-g5-operator-match-result .gi4-fraction-box {
  width: 30px;
  grid-template-rows: 21px 4px 21px;
  margin: 0 1px;
}

.gi4-g5-operator-match-result .gi4-fraction-cell {
  min-height: 21px;
  border-radius: 5px;
  font-size: 15px;
  line-height: 1;
}

.gi4-g5-operator-match-result .gi4-mixed-number {
  gap: 0;
  align-items: center;
}

.gi4-g5-operator-match-result .gi4-mixed-whole {
  min-width: 15px;
  font-size: 17px;
  line-height: 1;
}

.gi4-g5-operator-match-card .gi4-connect-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #111827;
  top: 50%;
  transform: translateY(-50%);
  z-index: 7;
}

.gi4-g5-operator-match-card .gi4-connect-dot.left {
  left: -6px;
}

.gi4-g5-operator-match-card .gi4-connect-dot.right {
  right: -6px;
}

.gi4-g5-operator-match-solution-svg {
  z-index: 4;
}

.gi4-g5-operator-match-solution-svg line {
  stroke: #0284c7;
  stroke-width: 2.1;
}

.solutions-mode .gi4-quantity-same-card > span[data-answer="18"],
.solutions-mode .gi4-quantity-same-card > span[data-answer="20"],
.solutions-mode .gi4-quantity-same-card > span[data-answer="21"],
.solutions-mode .gi4-quantity-same-card > span[data-answer="24"] {
  background: #dcfce7;
  border-radius: 8px;
}

.gi4-fraction-tip {
  margin: -4px 0 14px;
  color: #1f2937;
  font-size: 16px;
}

.gi4-fraction-tip strong {
  color: #8cc63f;
  font-size: 20px;
}

.gi4-fraction-equiv-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.gi4-fraction-equiv-grid.cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gi4-fraction-equiv-grid.axis,
.gi4-fraction-equiv-grid.bars {
  grid-template-columns: 1fr;
}

.gi4-fraction-equiv-card,
.gi4-fraction-equiv-bars,
.gi4-fraction-equiv-axis {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-fraction-equiv-visuals {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 14px;
  min-height: 108px;
}

.gi4-fraction-equiv-answer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
  font-size: 24px;
}

.gi4-fraction-equiv-answer.three,
.gi4-fraction-equiv-answer.many {
  flex-wrap: wrap;
}

.gi4-eq-mini-bar {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  height: 36px;
  border: 1.5px solid #6b7280;
  background: #fff;
}

.gi4-eq-mini-bar span {
  border-left: 1.3px solid #6b7280;
}

.gi4-eq-mini-bar span:first-child {
  border-left: 0;
}

.gi4-eq-mini-bar span.solution-fill {
  background: #fff;
}

.solutions-mode .gi4-eq-mini-bar span.solution-fill {
  background: var(--eq-fill, #b9d87a);
}

.gi4-eq-bar-row {
  margin: 10px 8px 16px;
}

.gi4-eq-axis {
  position: relative;
  height: 82px;
  margin: 6px 38px 14px 76px;
  border-bottom: 2px solid #8bb9c4;
}

.gi4-eq-axis::before,
.gi4-eq-axis::after {
  content: "";
  position: absolute;
  bottom: -1px;
  height: 18px;
  border-left: 2px solid #8bb9c4;
}

.gi4-eq-axis::before { left: 0; }
.gi4-eq-axis::after { right: 0; }

.gi4-eq-axis .division-tick {
  position: absolute;
  bottom: -1px;
  height: 18px;
  border-left: 2px solid #8bb9c4;
}

.gi4-eq-axis > span,
.gi4-eq-axis > strong {
  position: absolute;
  color: #1f2937;
}

.gi4-eq-axis > span {
  bottom: -29px;
  font-size: 20px;
}

.gi4-eq-axis > strong {
  bottom: 8px;
  color: #1f2937;
  font-size: 20px;
}

.gi4-eq-axis > span.zero { left: -8px; }
.gi4-eq-axis > span.one { right: -8px; }
.gi4-eq-axis > strong {
  transform: translateX(-50%);
  display: grid;
  grid-template-rows: 18px 2px 18px;
  min-width: 28px;
  text-align: center;
  line-height: 1;
}

.gi4-eq-axis > strong small {
  display: block;
  border-top: 2px solid currentColor;
}

.gi4-eq-axis-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  align-items: center;
  gap: 18px;
  margin: 20px 38px 20px 0;
}

.gi4-fraction-equiv-axis .gi4-eq-mini-bar {
  height: 42px;
}

.gi4-fraction-common-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.gi4-fraction-common-grid.explain,
.gi4-fraction-common-grid.recognize,
.gi4-fraction-common-grid.three {
  grid-template-columns: 1fr;
}

.gi4-fraction-common-grid.equivalent {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-fraction-common-explain,
.gi4-fraction-common-table,
.gi4-fraction-common-card,
.gi4-fraction-common-arrow,
.gi4-fraction-common-two,
.gi4-fraction-common-three {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-fraction-common-explain {
  background: #e7f4d7;
  border-color: #8cc63f;
}

.gi4-common-learn-badge {
  display: inline-block;
  margin: -8px 0 8px;
  padding: 4px 18px;
  border-radius: 6px;
  background: #8cc63f;
  color: #fff;
  font-weight: 800;
}

.gi4-fraction-common-explain h3 {
  margin: 0 0 8px;
  text-align: center;
  font-size: 20px;
}

.gi4-common-explain-top,
.gi4-common-steps {
  display: grid;
  grid-template-columns: repeat(3, 92px) 1fr;
  gap: 12px;
  align-items: center;
}

.gi4-common-steps {
  grid-template-columns: minmax(360px, 430px) 1fr;
  align-items: stretch;
  margin-top: 12px;
}

.gi4-common-step-visual {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: 12px;
  border: 1.5px solid rgba(26, 58, 92, .18);
  border-radius: 8px;
  background: rgba(255, 255, 255, .62);
}

.gi4-common-step-label {
  color: #1A3A5C;
  font-size: 15px;
}

.gi4-common-convert-bars,
.gi4-common-compare-bars {
  display: grid;
  align-items: center;
  gap: 14px;
}

.gi4-common-convert-bars {
  grid-template-columns: 1fr 1fr;
}

.gi4-common-compare-bars {
  grid-template-columns: 1fr auto 1fr;
}

.gi4-common-convert-bars > div,
.gi4-common-compare-bars > div:not(.gi4-common-compare-symbol) {
  display: grid;
  justify-items: center;
  gap: 6px;
  min-width: 0;
}

.gi4-common-step-visual .gi4-eq-mini-bar {
  width: 100%;
  min-width: 120px;
  height: 34px;
}

.gi4-common-compare-symbol {
  color: #1A3A5C;
  font-size: 32px;
  font-weight: 900;
}

.gi4-common-step-visual .gi4-common-answer {
  margin: 0;
}

.gi4-common-step-visual .gi4-common-multiply {
  justify-content: center;
}

.gi4-fraction-common-table table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-fraction-common-table td {
  border: 1.5px solid #d5dde7;
  text-align: center;
  padding: 10px 8px;
}

.solutions-mode .gi4-common-den-0 { background: #fff2b8; }
.solutions-mode .gi4-common-den-1 { background: #d9f5d6; }
.solutions-mode .gi4-common-den-2 { background: #d7ecff; }
.solutions-mode .gi4-common-den-3 { background: #ffdce8; }
.solutions-mode .gi4-common-den-4 { background: #efe2ff; }

.gi4-common-visuals {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  min-height: 106px;
}

.gi4-fraction-common-card .gi4-common-visuals {
  grid-template-columns: 1fr 1fr;
}

.gi4-common-answer,
.gi4-common-final,
.gi4-common-given {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 22px;
}

.gi4-common-work,
.gi4-common-two-work {
  display: grid;
  place-items: center;
  gap: 7px;
  margin-top: 8px;
}

.gi4-common-multiply {
  display: grid;
  justify-items: center;
  gap: 0;
  width: 134px;
  margin: 0 auto;
  color: #1f2937;
  font-size: 18px;
  line-height: 1;
}

.gi4-common-multiply.bottom {
  margin-top: -4px;
}

.gi4-common-multiply svg {
  width: 88px;
  height: 24px;
}

.gi4-common-factor-line {
  display: flex;
  align-items: center;
  gap: 5px;
  justify-self: start;
  margin-left: 8px;
}

.gi4-common-factor-line .gi4-line {
  min-width: 48px;
  text-align: center;
  font-weight: 800;
}

.gi4-common-given {
  margin-bottom: 12px;
  font-weight: 700;
}

.gi4-common-final {
  margin-top: 14px;
  justify-content: center;
  text-align: center;
}

.gi4-common-three-work {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.gi4-common-three-conversion {
  display: grid;
  place-items: center;
  gap: 8px;
}

.gi4-fraction-compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.exporting .gi4-fraction-compare-grid.material {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.exporting .gi4-fraction-compare-grid.arrows {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.gi4-fraction-compare-grid.arrows {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-fraction-compare-grid.order {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-fraction-compare-card,
.gi4-fraction-compare-order {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.exporting .gi4-fraction-compare-card.material {
  padding: 10px 12px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-top {
  grid-template-columns: minmax(0, 1fr) 54px minmax(0, 1fr);
  gap: 8px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-work {
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 8px;
  margin: 8px 0 12px;
}

.exporting .gi4-fraction-compare-card.material .gi4-common-work .gi4-fraction-box,
.exporting .gi4-fraction-compare-card.arrows .gi4-common-work .gi4-fraction-box {
  width: 40px;
  grid-template-rows: 28px 6px 28px;
}

.exporting .gi4-fraction-compare-card.material .gi4-common-work .gi4-fraction-cell,
.exporting .gi4-fraction-compare-card.arrows .gi4-common-work .gi4-fraction-cell {
  min-height: 28px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-top .gi4-fraction-shape {
  max-width: 112px;
  height: 78px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-target-visual .gi4-fraction-shape {
  max-width: 116px;
  height: 80px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-down-arrow {
  width: 20px;
  height: 32px;
}

.exporting .gi4-fraction-compare-card.material .gi4-common-work {
  gap: 3px;
  margin-top: 0;
}

.exporting .gi4-fraction-compare-card.material .gi4-common-multiply {
  width: 112px;
  font-size: 15px;
}

.exporting .gi4-fraction-compare-card.material .gi4-common-multiply svg {
  width: 70px;
  height: 20px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-final,
.exporting .gi4-fraction-compare-card.arrows .gi4-frac-compare-final {
  margin-top: 18px;
  gap: 5px;
  flex-wrap: nowrap;
  align-content: center;
  font-size: 14px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-final .gi4-fraction-box,
.exporting .gi4-fraction-compare-card.arrows .gi4-frac-compare-final .gi4-fraction-box {
  width: 34px;
  grid-template-rows: 30px 6px 30px;
  margin: 0 1px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-final .gi4-fraction-cell,
.exporting .gi4-fraction-compare-card.arrows .gi4-frac-compare-final .gi4-fraction-cell {
  min-height: 30px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-final .gi4-fraction-stroke,
.exporting .gi4-fraction-compare-card.arrows .gi4-frac-compare-final .gi4-fraction-stroke {
  width: 32px;
}

.exporting .gi4-fraction-compare-card.material .gi4-frac-compare-final .gi4-compare-symbol-box,
.exporting .gi4-fraction-compare-card.arrows .gi4-frac-compare-final .gi4-compare-symbol-box {
  width: 32px;
  min-width: 32px;
  flex-basis: 32px;
}

.gi4-fraction-compare-card .gi4-fraction-box,
.gi4-fraction-compare-order .gi4-fraction-box {
  grid-template-rows: 34px 7px 34px;
  width: 46px;
}

.gi4-fraction-compare-card .gi4-fraction-cell,
.gi4-fraction-compare-order .gi4-fraction-cell {
  min-height: 34px;
  border-radius: 7px;
}

.gi4-fraction-compare-card .gi4-fraction-stroke,
.gi4-fraction-compare-order .gi4-fraction-stroke {
  width: 44px;
}

.gi4-frac-compare-top {
  display: grid;
  grid-template-columns: 1fr 52px 1fr;
  align-items: center;
  gap: 12px;
}

.gi4-frac-compare-top > div {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px;
}

.gi4-frac-compare-top > div:last-child {
  grid-template-columns: 1fr auto;
}

.gi4-fraction-compare-card.material .gi4-frac-compare-top .gi4-fraction-shape {
  max-width: 122px;
  height: 86px;
}

.gi4-compare-symbol-box {
  display: inline-grid;
  place-items: center;
  width: 52px;
  min-width: 52px;
  flex: 0 0 52px;
  height: 30px;
  border: 2px solid #2b3440;
  background: #fff;
  color: #0f8dc4;
  font-weight: 900;
  box-sizing: border-box;
}

.exporting .gi4-compare-symbol-box {
  width: 50px;
  min-width: 50px;
  flex-basis: 50px;
}

.gi4-frac-compare-work {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: start;
  gap: 12px;
  margin: 12px 0 18px;
}

.gi4-frac-convert-visual {
  display: grid;
  justify-items: center;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding-top: 0;
}

.gi4-frac-target-visual {
  min-width: 0;
  width: 100%;
  display: grid;
  justify-items: center;
}

.gi4-frac-compare-card.material .gi4-frac-target-visual .gi4-fraction-shape {
  max-width: 132px;
  height: 92px;
}

.gi4-frac-compare-card.material .gi4-frac-down-arrow {
  width: 24px;
  height: 42px;
  margin: 0;
}

.gi4-frac-big-arrow {
  width: 56px;
  height: 84px;
  color: #1f2937;
  margin-top: -12px;
}

.gi4-fraction-compare-card.material .gi4-common-work .gi4-fraction-box {
  width: 40px;
  grid-template-rows: 28px 6px 28px;
}

.gi4-fraction-compare-card.material .gi4-common-work .gi4-fraction-cell {
  min-height: 28px;
}

.gi4-frac-compare-final {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: nowrap;
  margin-top: 24px;
  font-weight: 700;
}

.gi4-fraction-compare-card.material .gi4-frac-compare-final .gi4-fraction-box,
.gi4-fraction-compare-card.arrows .gi4-frac-compare-final .gi4-fraction-box {
  width: 42px;
  margin: 0 1px;
}

.gi4-fraction-compare-card.material .gi4-frac-compare-final .gi4-fraction-stroke,
.gi4-fraction-compare-card.arrows .gi4-frac-compare-final .gi4-fraction-stroke {
  width: 40px;
}

.gi4-fraction-compare-card.material .gi4-frac-compare-final .gi4-compare-symbol-box,
.gi4-fraction-compare-card.arrows .gi4-frac-compare-final .gi4-compare-symbol-box {
  width: 40px;
  min-width: 40px;
  flex-basis: 40px;
}

.gi4-frac-compare-inline {
  display: grid;
  grid-template-columns: 92px 44px 92px;
  align-items: center;
  justify-content: start;
  gap: 10px;
  margin-bottom: 16px;
  padding-left: 18px;
}

.gi4-frac-compare-inline > div {
  display: grid;
  justify-items: center;
}

.gi4-frac-compare-arrow-work {
  display: grid;
  grid-template-columns: 130px 1fr;
  align-items: center;
  gap: 6px;
}

.gi4-frac-arrow-slot {
  display: grid;
  justify-items: center;
  align-self: start;
  padding-top: 0;
}

.gi4-fraction-compare-card.arrows.convert-right .gi4-frac-compare-inline {
  padding-left: 86px;
}

.gi4-fraction-compare-card.arrows.convert-right .gi4-frac-compare-arrow-work {
  grid-template-columns: 1fr 130px;
}

.gi4-fraction-compare-card.arrows.convert-right .gi4-frac-arrow-slot {
  grid-column: 2;
  grid-row: 1;
  justify-items: center;
  transform: translateX(-86px);
}

.gi4-fraction-compare-card.arrows.convert-right .gi4-frac-conversion-slot {
  grid-column: 1;
  grid-row: 1;
}

.gi4-fraction-compare-card.arrows .gi4-common-answer {
  font-size: 20px;
}

.gi4-frac-order-top {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}

.gi4-frac-order-top > div {
  display: grid;
  justify-items: center;
  gap: 7px;
}

.gi4-frac-down-arrow {
  width: 24px;
  height: 42px;
  color: #1f2937;
}

.gi4-frac-order-final {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 20px;
  font-weight: 800;
}

.gi4-fraction-estimate-grid {
  display: grid;
  gap: 18px;
}

.gi4-fraction-estimate-grid.order,
.gi4-fraction-estimate-grid.figures {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-fraction-estimate-grid.compare {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gi4-fraction-estimate-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-fraction-estimate-card.strips {
  display: grid;
  grid-template-columns: 46px minmax(190px, 1fr) minmax(180px, .9fr);
  gap: 10px;
}

.gi4-estimate-axis {
  position: relative;
  grid-column: 2;
  height: 70px;
  margin: 0 0 4px 0;
  border-bottom: 2px solid #8bb9c4;
}

.gi4-estimate-axis::after {
  content: "";
  position: absolute;
  right: -3px;
  bottom: -5px;
  width: 9px;
  height: 9px;
  border-top: 2px solid #8bb9c4;
  border-right: 2px solid #8bb9c4;
  transform: rotate(45deg);
}

.gi4-estimate-axis::before,
.gi4-estimate-axis i {
  content: "";
  position: absolute;
  bottom: -1px;
  height: 16px;
  border-left: 2px solid #8bb9c4;
}

.gi4-estimate-axis::before { left: 0; }
.gi4-estimate-axis i { left: 50%; }

.gi4-estimate-axis span {
  position: absolute;
  bottom: -28px;
  color: #1f2937;
  font-size: 18px;
}

.gi4-estimate-axis .zero { left: -8px; }
.gi4-estimate-axis .one { right: calc(4% - 8px); }
.gi4-estimate-axis .half {
  left: 48%;
  bottom: 20px;
  transform: translateX(-50%);
  display: grid;
  grid-template-rows: 18px 2px 18px;
  text-align: center;
  line-height: 1;
}

.gi4-estimate-axis .half small {
  display: block;
  border-top: 2px solid currentColor;
}

.gi4-estimate-strip-rows {
  display: grid;
  grid-column: 1 / -1;
  gap: 12px;
  margin-top: 8px;
}

.gi4-estimate-strip-row {
  display: grid;
  grid-template-columns: 46px minmax(190px, 1fr) minmax(180px, .9fr);
  align-items: center;
  gap: 10px;
}

.gi4-plain-fraction {
  display: inline-grid;
  grid-template-rows: 18px 2px 18px;
  min-width: 28px;
  text-align: center;
  line-height: 1;
  font-weight: 700;
  vertical-align: middle;
}

.gi4-plain-fraction b {
  display: block;
  width: 24px;
  margin: 0 auto;
  border-top: 2px solid currentColor;
}

.gi4-estimate-bar {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  height: 22px;
  border: 1.5px solid #8f9aa8;
  background: #fff;
}

.gi4-estimate-bar span {
  border-left: 1.2px solid #8f9aa8;
  background: #fff;
}

.gi4-estimate-bar span:first-child {
  border-left: 0;
}

.solutions-mode .gi4-estimate-bar span.solution-fill {
  background: #b9d87a;
}

.gi4-estimate-near {
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
  font-size: 15px;
}

.gi4-estimate-order {
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
  font-weight: 800;
}

.gi4-fraction-estimate-card.compare {
  display: grid;
  gap: 12px;
  align-content: center;
}

.gi4-estimate-compare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.gi4-estimate-compare-row {
  display: grid;
  grid-template-columns: auto 46px auto;
  align-items: center;
  gap: 8px;
  justify-items: center;
}

.gi4-fraction-estimate-card.compare .gi4-fraction-box {
  width: 40px;
  grid-template-rows: 28px 5px 28px;
  margin: 0;
}

.gi4-fraction-estimate-card.compare .gi4-fraction-cell {
  min-height: 28px;
}

.gi4-fraction-estimate-card.compare .gi4-fraction-stroke {
  width: 38px;
}

.gi4-fraction-estimate-card.order {
  display: grid;
  gap: 16px;
  align-content: center;
  min-height: 150px;
}

.gi4-estimate-given {
  display: flex;
  justify-content: center;
  gap: 14px;
}

.gi4-fraction-estimate-card.figures {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  align-items: center;
}

.gi4-estimate-figure {
  display: grid;
  justify-items: center;
}

.gi4-estimate-figure-svg {
  width: 108px;
  height: 88px;
}

.solutions-mode .gi4-estimate-figure-svg .solution-fill {
  fill: #fff7c2;
}

.exporting .gi4-fraction-estimate-grid {
  gap: 14px;
}

.exporting .gi4-fraction-estimate-card {
  padding: 12px;
}

.exporting .gi4-estimate-strip-row {
  grid-template-columns: 40px minmax(170px, 1fr) minmax(160px, .85fr);
  gap: 8px;
}

.exporting .gi4-estimate-figure-svg {
  width: 96px;
  height: 80px;
}

.gi4-mixed-grid {
  display: grid;
  gap: 18px;
}

.gi4-mixed-grid.convert,
.gi4-mixed-grid.visual,
.gi4-mixed-grid.axis {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-mixed-grid.explain,
.gi4-mixed-grid.classify,
.gi4-mixed-grid.connect,
.gi4-mixed-grid.solve {
  grid-template-columns: minmax(0, 1fr);
}

.gi4-mixed-grid.table {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-mixed-grid.orderExplain,
.gi4-mixed-grid.orderStripAxis,
.gi4-mixed-grid.betweenNaturals,
.gi4-mixed-grid.axisConnectOrder,
.gi4-mixed-grid.mixedSequence,
.gi4-mixed-grid.mixedBeforeAfter {
  grid-template-columns: minmax(0, 1fr);
}

.gi4-mixed-explain,
.gi4-mixed-convert-card,
.gi4-mixed-classify-card,
.gi4-mixed-visual-card,
.gi4-mixed-axis-card,
.gi4-mixed-connect-card,
.gi4-mixed-table-card,
.gi4-mixed-solve-card,
.gi4-mixed-order-card,
.gi4-mixed-order-explain,
.gi4-mixed-sequence-card,
.gi4-mixed-before-after-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
  padding: 14px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-mixed-explain {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  background: #eef8dd;
  border-color: #8dcc37;
}

.gi4-mixed-explain-box {
  display: grid;
  grid-template-rows: auto auto auto minmax(78px, auto);
  gap: 8px;
  min-height: 235px;
  padding: 12px;
  border: 1.5px solid #8dcc37;
  border-radius: 8px;
  background: #fff;
  text-align: center;
  overflow: visible;
}

.gi4-mixed-explain-box p {
  margin: 0;
  font-size: 15px;
}

.gi4-mixed-example,
.gi4-mixed-equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 17px;
  font-weight: 700;
}

.gi4-mixed-number {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  vertical-align: middle;
}

.gi4-mixed-whole {
  min-width: 18px;
  text-align: center;
  font-weight: 800;
}

.gi4-mixed-whole.empty {
  align-self: center;
  min-width: 30px;
  height: 24px;
  border-bottom: 1.6px solid #cbd5e1;
}

.gi4-mixed-whole.empty .gi4-solution-answer {
  line-height: 22px;
}

.gi4-mixed-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 74px;
  overflow: visible;
}

.gi4-mixed-visual .gi4-fraction-shape {
  flex: 0 0 76px;
  width: 76px;
  min-width: 76px;
  height: 62px;
  max-width: none;
  overflow: visible;
}

.gi4-mixed-visual.circles .gi4-fraction-shape {
  flex-basis: 88px;
  width: 88px;
  min-width: 88px;
  height: 66px;
}

.gi4-mixed-explain .gi4-mixed-visual {
  min-height: 78px;
  align-self: center;
  justify-self: center;
}

.gi4-mixed-explain .gi4-mixed-visual.circles .gi4-fraction-shape {
  flex-basis: 72px;
  width: 72px;
  min-width: 72px;
  height: 72px;
}

.gi4-mixed-bar {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  width: 120px;
  height: 22px;
  border: 1.4px solid #6b7280;
  background: #fff;
}

.gi4-mixed-bar span {
  border-left: 1px solid #6b7280;
}

.gi4-mixed-bar span:first-child {
  border-left: 0;
}

.gi4-mixed-bar .filled {
  background: #a9d7e8;
}

.gi4-mixed-bar .filled.solution-only {
  display: block;
  background: #fff;
}

.solutions-mode .gi4-mixed-bar .filled.solution-only {
  background: #a9d7e8;
}

.gi4-mixed-swap-arrows {
  width: 100%;
  text-align: center;
  font-size: 24px;
  font-weight: 900;
}

.gi4-mixed-convert-card,
.gi4-mixed-visual-card,
.gi4-mixed-axis-card {
  display: grid;
  gap: 14px;
  align-content: start;
}

.gi4-mixed-card-top {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
}

.gi4-mixed-classify-card {
  display: grid;
  gap: 16px;
}

.gi4-mixed-legend {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 16px;
}

.gi4-mixed-legend .orange { color: #f59e0b; }
.gi4-mixed-legend .green { color: #22c55e; }
.gi4-mixed-legend .blue { color: #0ea5e9; }

.gi4-mixed-classify-grid,
.gi4-mixed-connect-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  align-items: center;
}

.gi4-mixed-tile {
  position: relative;
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  border: 1.4px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
}

.solutions-mode .gi4-mixed-tile.classify.unit { background: #fed7aa; }
.solutions-mode .gi4-mixed-tile.classify.improper { background: #bbf7d0; }
.solutions-mode .gi4-mixed-tile.classify.mixed { background: #bae6fd; }

.gi4-mixed-fill-sentence {
  font-size: 16px;
}

.gi4-mixed-axis {
  position: relative;
  height: 100px;
  margin: 74px 18px 30px;
  border-bottom: 2px solid #9ca3af;
}

.gi4-mixed-axis > span {
  position: absolute;
  bottom: -30px;
  transform: translateX(-50%);
  font-weight: 700;
}

.gi4-mixed-axis > i {
  position: absolute;
  bottom: -1px;
  height: 12px;
  border-left: 1.3px solid #9ca3af;
}

.gi4-mixed-axis > i.whole {
  height: 22px;
}

.gi4-mixed-axis-marker {
  position: absolute;
  left: var(--pos);
  top: -58px;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 188px;
  justify-content: center;
  padding: 8px 14px;
  background: #fff;
  border: 2px solid #60c9e8;
  border-radius: 8px;
  z-index: 1;
  font-weight: 700;
}

.gi4-mixed-axis-marker.edge-right {
  transform: translateX(-82%);
}

.gi4-mixed-axis-marker.edge-left {
  transform: translateX(-18%);
}

.gi4-mixed-axis-marker::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  height: 58px;
  border-left: 2px solid #111827;
}

.gi4-mixed-axis-marker.edge-right::after {
  left: 82%;
}

.gi4-mixed-axis-marker.edge-left::after {
  left: 18%;
}

.gi4-mixed-axis-marker .gi4-fraction-box {
  width: 36px;
  grid-template-rows: 20px 4px 20px;
  margin: 0;
}

.gi4-mixed-axis-marker .gi4-fraction-cell {
  min-height: 20px;
  border: 0;
  border-radius: 0;
}

.gi4-mixed-axis-marker .gi4-fraction-stroke {
  width: 32px;
}

.gi4-mixed-axis-whole-line {
  min-width: 50px;
}

.gi4-mixed-axis-rest {
  display: inline-grid;
  grid-template-rows: 18px 4px 18px;
  min-width: 46px;
  align-items: center;
  justify-items: center;
  line-height: 1;
}

.gi4-mixed-axis-rest i {
  position: static;
  display: block;
  width: 42px;
  height: 0;
  border-left: 0;
  border-top: 1.8px solid #6b7280;
}

.gi4-mixed-axis-rest span {
  position: static;
  transform: none;
  font-weight: 700;
}

.solutions-mode .gi4-mixed-axis-rest > span {
  position: relative;
  color: transparent;
}

.solutions-mode .gi4-mixed-axis-rest .gi4-solution-answer {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: #0f8dc4;
}

.gi4-mixed-axis-sum {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
  font-size: 17px;
  font-weight: 700;
}

.gi4-mixed-connect-card {
  display: grid;
  gap: 122px;
  padding: 18px 34px;
}

.gi4-mixed-connect-card .gi4-connect-dot {
  position: absolute;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #111827;
  transform: translateX(-50%);
}

.gi4-mixed-connect-card .gi4-connect-dot.right { bottom: -28px; }
.gi4-mixed-connect-card .gi4-connect-dot.left { top: -28px; }

.gi4-mixed-connect-row.bottom {
  padding: 0 28px;
}

.gi4-mixed-table-card table {
  width: 100%;
  margin: 0 auto;
  border-collapse: collapse;
}

.gi4-mixed-table-card th {
  background: #bde7f2;
  font-weight: 800;
}

.gi4-mixed-table-card th,
.gi4-mixed-table-card td {
  border: 1px solid #cbd5e1;
  text-align: center;
  padding: 6px;
}

.gi4-mixed-solve-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 24px;
}

.gi4-mixed-solve-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 58px;
  font-size: 17px;
  font-weight: 700;
}

.gi4-mixed-plain {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-weight: 800;
}

.gi4-mixed-order-explain {
  display: grid;
  gap: 12px;
  background: #eef8dd;
  border-color: #8dcc37;
}

.gi4-mixed-order-text {
  display: grid;
  gap: 6px;
  font-size: 17px;
}

.gi4-mixed-order-text p {
  margin: 0;
}

.gi4-mixed-order-demo-axis,
.gi4-mixed-order-axis {
  position: relative;
  height: 128px;
  margin: 54px 46px 96px;
  border-bottom: 2px solid #111827;
}

.gi4-mixed-order-demo-axis {
  height: 58px;
  margin-top: 10px;
  margin-bottom: 36px;
}

.gi4-mixed-order-demo-axis::after,
.gi4-mixed-order-axis::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -6px;
  width: 12px;
  height: 12px;
  border-right: 2px solid #111827;
  border-top: 2px solid #111827;
  transform: rotate(45deg);
}

.gi4-mixed-order-axis-label {
  position: absolute;
  bottom: -34px;
  transform: translateX(-50%);
  font-weight: 800;
}

.gi4-mixed-order-axis .gi4-mixed-order-axis-label {
  color: #ef233c;
  font-size: 18px;
}

.gi4-mixed-order-demo-axis .gi4-mixed-order-axis-label {
  color: #ef233c;
  font-size: 19px;
}

.gi4-mixed-order-demo-axis > i,
.gi4-mixed-order-axis > i {
  position: absolute;
  bottom: 0;
  height: 16px;
  border-left: 1.6px solid #111827;
}

.gi4-mixed-order-demo-axis > i.whole,
.gi4-mixed-order-axis > i.whole {
  height: 28px;
}

.gi4-mixed-order-demo-label {
  position: absolute;
  bottom: -40px;
  transform: translateX(-50%);
  min-width: 42px;
  text-align: center;
  font-size: 15px;
  font-weight: 800;
}

.gi4-mixed-order-chain {
  display: block;
  text-align: center;
  font-size: 18px;
  font-weight: 800;
  margin-top: 6px;
}

.gi4-mixed-order-chain .natural {
  color: #ef233c;
}

.gi4-mixed-order-card {
  display: grid;
  gap: 18px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-mixed-order-marker {
  position: absolute;
  transform: translateX(-50%);
  min-width: 76px;
  min-height: 56px;
  display: grid;
  place-items: center;
  padding: 4px 7px;
  border: 2px solid #aeb4bc;
  border-radius: 9px;
  background: #fff;
  z-index: 2;
}

.gi4-mixed-order-marker.top {
  bottom: 42px;
}

.gi4-mixed-order-marker.bottom {
  top: 154px;
}

.gi4-mixed-order-marker::after {
  content: "";
  position: absolute;
  left: 50%;
  height: 34px;
  border-left: 2px solid #6b7280;
  transform: translateX(-50%);
}

.gi4-mixed-order-marker.top::after {
  top: 100%;
}

.gi4-mixed-order-marker.bottom::after {
  bottom: 100%;
}

.gi4-mixed-order-marker.blue {
  border-color: #60c9e8;
}

.gi4-mixed-order-strip {
  display: grid;
  grid-template-columns: repeat(var(--segments), minmax(0, 1fr));
  width: calc(100% - 92px);
  height: 42px;
  margin: 10px 46px 0;
  border: 1.5px solid #6b7280;
}

.gi4-mixed-order-strip span {
  border-left: 1px solid #6b7280;
  background: #fff;
}

.gi4-mixed-order-strip span:first-child {
  border-left: 0;
}

.gi4-mixed-order-strip .filled {
  background: #a9d7e8;
}

.gi4-mixed-order-sentence {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 17px;
}

.gi4-mixed-axis-connect-cards {
  display: grid;
  grid-template-columns: repeat(var(--connect-count, 5), minmax(0, 1fr));
  gap: 14px;
  align-items: center;
  width: min(980px, 88%);
  margin: 52px auto 0;
}

.gi4-mixed-axis-connect-order .gi4-mixed-order-axis {
  height: 86px;
  margin-top: 22px;
  margin-bottom: 70px;
}

.gi4-mixed-axis-connect-order .gi4-mixed-axis-connect-cards {
  margin-top: 30px;
}

.gi4-mixed-axis-connect-order .gi4-mixed-order-compare {
  margin-top: 28px;
}

.gi4-mixed-order-connect-tile {
  position: relative;
  min-width: 0;
  min-height: 68px;
  display: grid;
  place-items: center;
  border: 1.4px solid #aeb4bc;
  border-radius: 8px;
}

.gi4-mixed-order-connect-tile .gi4-connect-dot {
  position: absolute;
  top: -10px;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #111827;
  transform: translateX(-50%);
}

.gi4-mixed-order-compare {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.gi4-mixed-order-compare > span {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.gi4-mixed-sequence-card {
  display: grid;
  gap: 20px;
}

.gi4-mixed-sequence-row {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
  padding-top: 12px;
  border-top: 5px solid #bae6fd;
}

.gi4-mixed-sequence-row.color-2 {
  border-color: #fed7aa;
}

.gi4-mixed-sequence-row.color-3 {
  border-color: #bbf7d0;
}

.gi4-mixed-sequence-tile {
  min-height: 72px;
  display: grid;
  place-items: center;
  border: 1.4px solid #aeb4bc;
  border-radius: 8px;
  background: #fff;
}

.gi4-mixed-before-after-card table {
  width: 100%;
  border-collapse: collapse;
}

.gi4-mixed-before-after-card th {
  background: #bde7f2;
  font-weight: 800;
}

.gi4-mixed-before-after-card th,
.gi4-mixed-before-after-card td {
  border: 1px solid #cbd5e1;
  text-align: center;
  padding: 10px;
}

.gi4-mixed-before-after-card td {
  height: 62px;
}

.exporting .gi4-mixed-order-card,
.exporting .gi4-mixed-order-explain,
.exporting .gi4-mixed-sequence-card,
.exporting .gi4-mixed-before-after-card {
  break-inside: avoid;
  page-break-inside: avoid;
}

.exporting .gi4-mixed-grid.convert,
.exporting .gi4-mixed-grid.visual,
.exporting .gi4-mixed-grid.axis {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.exporting .gi4-mixed-explain {
  gap: 8px;
}

.exporting .gi4-mixed-explain-box {
  grid-template-rows: auto auto auto minmax(78px, auto);
  min-height: 235px;
  padding: 10px;
  overflow: visible;
}

.exporting .gi4-mixed-visual .gi4-fraction-shape {
  flex-basis: 82px;
  width: 82px;
  min-width: 82px;
  height: 62px;
  max-width: none;
  overflow: visible;
}

.exporting .gi4-mixed-visual.circles .gi4-fraction-shape {
  flex-basis: 90px;
  width: 90px;
  min-width: 90px;
  height: 66px;
}

.exporting .gi4-mixed-explain .gi4-mixed-visual {
  min-height: 78px;
  align-self: center;
  justify-self: center;
}

.exporting .gi4-mixed-explain .gi4-mixed-visual.circles .gi4-fraction-shape {
  flex-basis: 72px;
  width: 72px;
  min-width: 72px;
  height: 72px;
}

.gi4-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  font-size: 15px;
}

.gi4-line {
  display: inline-block;
  border-bottom: 1.5px solid #cbd5e1;
  min-width: 58px;
  height: 20px;
}

.gi4-line.long {
  min-width: 138px;
}

.gi4-line.small {
  min-width: 42px;
}

.gi4-input-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 74px;
  height: 28px;
  border: 1.5px solid #cbd5e1;
  border-radius: 3px;
  background: #fff;
}

.gi4-compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 46px;
  max-width: 780px;
}

.gi4-compare-row {
  display: grid;
  grid-template-columns: minmax(92px, 1fr) 40px minmax(92px, 1fr);
  align-items: center;
  gap: 12px;
  font-size: 15px;
}

.gi4-compare-row > span:first-of-type {
  text-align: right;
}

.gi4-compare-row > span:last-of-type {
  text-align: left;
}

.gi4-compare-row.value-mode {
  grid-template-columns: minmax(118px, 1fr) 40px minmax(118px, 1fr);
}

.gi4-symbol-box {
  width: 34px;
  height: 30px;
  border: 1.8px solid #cbd5e1;
  border-radius: 4px;
  background: #fff;
  justify-self: center;
}

.gi4-order-row {
  position: relative;
  padding-bottom: 22px;
  border-bottom: 1px solid #eef2f7;
}

.gi4-order-row:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.gi4-order-source {
  margin-bottom: 26px;
  font-weight: 800;
  letter-spacing: .02em;
}

.gi4-order-answer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr) 18px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.gi4-order-answer .gi4-line.long {
  width: 100%;
  min-width: 0;
}

.gi4-order-grid {
  display: grid;
  gap: 28px;
}

.gi4-axis {
  display: grid;
  gap: 12px;
}

.gi4-axis-connect {
  display: grid;
  gap: 34px;
}

.gi4-axis-connect-row {
  position: relative;
  padding: 10px 0 20px;
  border-bottom: 1px solid #d8edf3;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-axis-connect-row:last-child {
  border-bottom: 0;
}

.gi4-axis-connect-axis {
  position: relative;
  height: 72px;
  margin: 0 16px 24px;
}

.gi4-axis-connect-line {
  position: absolute;
  left: 0;
  right: 0;
  top: 46px;
  border-top: 2px solid #8bb9c4;
  pointer-events: none;
}

.gi4-axis-connect-line::after {
  content: "";
  position: absolute;
  right: -2px;
  top: -5px;
  width: 9px;
  height: 9px;
  border-top: 2px solid #8bb9c4;
  border-right: 2px solid #8bb9c4;
  transform: rotate(45deg);
}

.gi4-axis-connect-axis > span {
  position: absolute;
  top: 36px;
  height: 17px;
  border-left: 2px solid #8bb9c4;
  transform: translateX(-50%);
  pointer-events: none;
}

.gi4-axis-connect-axis > span.major {
  top: 28px;
  height: 28px;
}

.gi4-axis-connect-label {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  min-width: 58px;
  padding: 2px 5px;
  border: 1.5px solid #8bb9c4;
  background: #fff;
  color: #334155;
  font-weight: 700;
  font-size: 15px;
  text-align: center;
  white-space: nowrap;
}

.gi4-axis-connect-cards {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  padding: 0 62px 0 70px;
  margin-top: 8px;
}

.gi4-axis-connect-card {
  position: relative;
  min-height: 34px;
  display: grid;
  place-items: center;
  border: 1.5px solid #aab0b8;
  border-radius: 7px;
  background: #fff;
  font-size: 18px;
  color: #1f2937;
}

.gi4-axis-connect-card::before {
  content: "";
  position: absolute;
  top: -9px;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #111827;
  transform: translateX(-50%);
}

.gi4-axis-row {
  position: relative;
  height: 58px;
}

.gi4-axis-line {
  position: absolute;
  left: 16px;
  right: 14px;
  top: 34px;
  border-top: 2px solid #75aebd;
  pointer-events: none;
}

.gi4-axis-line::after {
  content: "";
  position: absolute;
  right: -2px;
  top: -5px;
  width: 9px;
  height: 9px;
  border-top: 2px solid #75aebd;
  border-right: 2px solid #75aebd;
  transform: rotate(45deg);
}

.gi4-tick {
  position: absolute;
  top: 28px;
  width: 1px;
  height: 11px;
  border-left: 2px solid #75aebd;
  pointer-events: none;
}

.gi4-tick-label {
  position: absolute;
  top: 2px;
  transform: translateX(-50%);
  font-size: 13px;
  font-weight: 700;
  color: #334155;
  white-space: nowrap;
}

.gi4-tick-box {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  width: 62px;
  height: 23px;
  border: 1.5px solid #cbd5e1;
  background: #fff;
}

.gi4-jumps {
  display: grid;
  gap: 14px;
}

.gi4-jump-row {
  display: grid;
  grid-template-columns: 76px repeat(5, 1fr 76px);
  gap: 4px;
  align-items: end;
  padding-top: 12px;
}

.gi4-jump-cell {
  min-height: 30px;
  border-bottom: 1.5px solid #d8dee8;
  text-align: center;
  font-weight: 700;
  color: #334155;
  padding-bottom: 3px;
}

.gi4-jump-row .gi4-jump-cell:last-child {
  justify-self: start;
  width: 54px;
}

.gi4-jump-arrow {
  height: 24px;
  align-self: start;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.gi4-jump-arrow-svg {
  width: 54px;
  height: 22px;
  display: block;
}

.gi4-jump-step {
  display: inline-block;
  margin-bottom: 10px;
  color: #64748b;
  font-weight: 700;
  font-size: 13px;
}

.gi4-place-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  margin-bottom: 8px;
}

.gi4-place-table.compact {
  margin-bottom: 6px;
}

.gi4-place-table.connect {
  margin-bottom: 0;
}

.gi4-place-table th,
.gi4-place-table td {
  border: 1.5px solid #94a3b8;
  text-align: center;
  height: 38px;
  vertical-align: middle;
}

.gi4-place-table.compact td {
  height: 122px;
}

.gi4-place-table.connect th {
  height: 30px;
  font-size: 16px;
}

.gi4-place-table.connect td {
  height: 86px;
}

.gi4-place-table th {
  color: #111827;
  font-weight: 900;
  font-size: 18px;
}

.gi4-m { background: #f36b5b; color: #111827; }
.gi4-hd { background: #57c7dc; color: #111827; }
.gi4-td { background: #a7cf5f; color: #111827; }
.gi4-d { background: #ef2b2d; color: #111827; }
.gi4-h { background: #1976ad; color: #111827; }
.gi4-t { background: #4fb94f; }
.gi4-e { background: #ffd414; }

.gi4-material {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  justify-content: center;
  align-items: center;
  min-height: 70px;
  padding: 5px;
}

.gi4-material.compact {
  min-height: 106px;
  align-content: center;
  gap: 7px;
  padding: 6px;
}

.gi4-place-table .gi4-dot {
  font-size: 0;
}

.gi4-material.connect {
  min-height: 74px;
  gap: 4px;
  padding: 4px;
  align-content: center;
}

.gi4-material-svg {
  display: inline-block;
  flex: 0 0 auto;
}

.gi4-connect-list {
  display: grid;
  gap: 9px;
  position: relative;
}

.gi4-connect-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(320px, 410px) minmax(160px, 1fr) minmax(174px, 194px);
  align-items: center;
  gap: 14px;
}

.gi4-connect-row.dots {
  grid-template-columns: minmax(430px, 560px) minmax(150px, 1fr) minmax(100px, 130px);
  gap: 18px;
}

.gi4-connect-card {
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 6px;
  min-height: 0;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-connect-row.dots .gi4-connect-card {
  border-radius: 10px;
  padding: 0;
}

.gi4-connect-dot-card {
  display: grid;
  grid-template-columns: repeat(4, max-content);
  align-items: start;
  column-gap: 8px;
  row-gap: 7px;
  min-height: 74px;
  padding: 14px 10px 10px;
  overflow: hidden;
}

.gi4-connect-dot-group {
  display: grid;
  grid-template-columns: repeat(5, 16px);
  align-items: start;
  align-content: start;
  justify-content: start;
  gap: 3px;
  min-width: 92px;
}

.gi4-connect-card .gi4-place-table {
  margin-bottom: 0;
}

.gi4-connect-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #111827;
  justify-self: center;
}

.gi4-connect-space {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  padding: 0 12px;
}

.gi4-connect-solution {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  display: none;
}

.gi4-connect-row.dots .gi4-connect-space {
  min-height: 74px;
  padding: 0 10px;
}

.gi4-connect-answer {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.gi4-connect-answer .gi4-pencil {
  margin: 0;
}

.gi4-connect-answer-number {
  display: inline-grid;
  place-items: center;
  min-width: 86px;
  min-height: 44px;
  padding: 0 12px;
  border: 1.5px solid #aab0b8;
  border-radius: 8px;
  background: #fff;
  color: #1f2937;
  font-size: 22px;
  font-weight: 500;
  line-height: 1;
}

.gi4-solution-svg {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  overflow: visible;
}

.gi4-solution-svg line,
.gi4-solution-svg path {
  stroke: #0f8dc4;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.gi4-solution-svg circle {
  fill: #0f8dc4;
}

.gi4-axis-connect-solution-svg line,
.gi4-mixed-axis-connect-solution-svg line {
  stroke: #0f8dc4 !important;
}

.gi4-dot {
  display: inline-grid;
  place-items: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid rgba(15, 23, 42, .18);
  box-shadow: inset 0 -1px 0 rgba(15, 23, 42, .16);
  font-size: 7px;
  font-weight: 900;
  line-height: 1;
  color: #fff;
}

.gi4-dot.connect {
  width: 16px;
  height: 16px;
  font-size: 5px;
}

.gi4-dot.gi4-e {
  color: #111827;
}

.gi4-dot.gi4-td {
  color: #111827;
  font-size: 6px;
}

.gi4-unit {
  display: inline-block;
  width: 13px;
  height: 13px;
  background: #ffd51c;
  border: 1px solid rgba(15, 23, 42, .35);
}

.gi4-pencil {
  display: inline-grid;
  grid-template-columns: repeat(4, 34px) 20px;
  align-items: center;
  margin: 8px 0;
}

.gi4-pencil.wide {
  grid-template-columns: repeat(5, 31px) 18px;
}

.gi4-pencil > span {
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid #8a8f99;
  font-weight: 900;
}

.gi4-pencil .gi4-solution-answer {
  display: none;
}

.solutions-mode .gi4-pencil .gi4-solution-answer {
  display: inline;
}

.gi4-pencil .gi4-pencil-tip {
  width: 20px;
  height: 30px;
  display: block;
  margin-left: 0;
}

.gi4-value-card {
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 8px;
  overflow: hidden;
  break-inside: avoid;
  min-height: 0;
  page-break-inside: avoid;
}

.gi4-value-card-upper {
  padding: 10px 12px;
}

.gi4-value-card.example {
  background: #ffe0b7;
  border-color: #fb923c;
}

.gi4-value-card-schema .gi4-place-table.compact td {
  height: 58px;
}

.gi4-value-card-schema .gi4-material.compact {
  min-height: 44px;
  gap: 3px;
  padding: 3px;
}

.gi4-value-work-svg {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 8px;
}

.gi4-value-card-upper .gi4-value-work-svg {
  max-width: 560px;
  margin: 6px auto 0;
}

.gi4-equivalent-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 17px;
}

.gi4-equivalent-table td {
  border: 1.5px solid #d5dde7;
  text-align: center;
  padding: 7px 6px;
}

.solutions-mode .gi4-equivalent-table tr.gi4-equivalent-solution-0 td { background: #fff2b8; }
.solutions-mode .gi4-equivalent-table tr.gi4-equivalent-solution-1 td { background: #d9f5d6; }
.solutions-mode .gi4-equivalent-table tr.gi4-equivalent-solution-2 td { background: #d7ecff; }
.solutions-mode .gi4-equivalent-table tr.gi4-equivalent-solution-3 td { background: #ffdce8; }
.solutions-mode .gi4-equivalent-table tr.gi4-equivalent-solution-4 td { background: #efe2ff; }
.solutions-mode .gi4-equivalent-table tr.gi4-equivalent-solution-5 td { background: #ffe4c4; }

.gi4-g6-material-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(300px, 1fr));
  gap: 18px;
}

.gi4-g6-material-card {
  position: relative;
  padding: 14px 16px;
  border: 1.5px solid #b8c0ca;
  border-radius: 10px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g6-material-card .gi4-place-table.compact td {
  height: 64px;
}

.gi4-g6-material-card .gi4-material.compact {
  min-height: 48px;
  gap: 4px;
  padding: 4px;
}

.gi4-g6-material-counts {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 8px;
  flex-wrap: wrap;
  margin: 12px 0 14px;
  font-size: 18px;
}

.gi4-g6-material-counts .gi4-line.tiny {
  min-width: 44px;
}

.gi4-g6-material-number {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
}

.gi4-g6-next-list {
  display: grid;
  gap: 12px;
  padding: 4px 0;
}

.gi4-g6-next-row {
  position: relative;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 5px;
  min-height: 34px;
  font-size: 18px;
  line-height: 1.35;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-g6-next-row.example strong {
  color: #0284c7;
}

.gi4-g6-build {
  grid-template-columns: minmax(310px, .95fr) minmax(360px, 1.05fr);
}

.gi4-g6-place-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: auto;
  font-size: 17px;
}

.gi4-g6-place-table th,
.gi4-g6-place-table td {
  border: 1.3px solid #8a8f99;
  text-align: center;
  height: 42px;
}

.gi4-g6-place-table th {
  font-weight: 900;
  color: #111827;
}

.gi4-g6-place-table th:first-child {
  width: 190px;
  min-width: 190px;
  border: 0;
}

.gi4-g6-place-table th:not(:first-child),
.gi4-g6-place-table td:not(.gi4-g6-place-number) {
  width: 58px;
  min-width: 48px;
  padding-left: 4px;
  padding-right: 4px;
}

.gi4-g6-place-table .gi4-g6-place-number {
  position: relative;
  width: 190px;
  min-width: 190px;
  border: 0;
  text-align: right;
  padding-right: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.gi4-g6-place-table .gi4-g6-place-number .row-delete-btn {
  right: -12px;
  top: 50%;
  transform: translate(100%, -50%);
}

.gi4-g6-axis-row {
  gap: 44px;
  padding-bottom: 30px;
}

.gi4-g6-axis-row .gi4-g5-axis-cards {
  padding-top: 24px;
}

.solutions-mode .gi4-equivalent-table td {
  color: #1f2937;
  font-weight: 800;
  box-shadow: inset 0 0 0 1.5px rgba(15, 23, 42, .18);
}

.gi4-decimal-intro {
  background: #eef9df;
  border: 1.5px solid #88c63f;
  border-radius: 8px;
  padding: 12px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-intro-title {
  font-weight: 900;
  color: #1A3A5C;
  margin-bottom: 5px;
}

.gi4-decimal-intro p {
  margin: 5px 0;
}

.gi4-decimal-intro-grid,
.gi4-decimal-grid {
  display: grid;
  gap: 10px;
}

.gi4-decimal-intro-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 10px;
}

.gi4-decimal-grid.cards {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gi4-decimal-grid.hundredths {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.gi4-decimal-grid.two,
.gi4-decimal-grid.compare {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-decimal-grid.order {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-decimal-grid.order.greatest,
.gi4-decimal-grid.order.compare {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gi4-decimal-intro-card,
.gi4-decimal-card,
.gi4-decimal-line-card,
.gi4-decimal-compare-card,
.gi4-decimal-missing-card,
.gi4-decimal-jump-card,
.gi4-decimal-greatest-card,
.gi4-decimal-contents-card {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 10px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
  overflow: hidden;
}

.gi4-decimal-card-title {
  font-weight: 800;
  margin-bottom: 8px;
}

.gi4-decimal-card-title.center {
  text-align: center;
}

.gi4-decimal-tenths-stack {
  display: grid;
  gap: 18px;
}

.gi4-decimal-tenths-intro {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
  padding: 12px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-tenths-circle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.gi4-decimal-tenths-card {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 10px;
  background: #fff;
  text-align: center;
  min-height: 212px;
}

.gi4-decimal-tenths-card .gi4-decimal-circle {
  width: 118px;
  height: 118px;
  margin: 4px auto 8px;
}

.gi4-decimal-tenths-axis-wrap {
  margin-top: 16px;
  display: grid;
  justify-items: center;
}

.gi4-decimal-tenths-axis-wrap .gi4-decimal-axis {
  width: 330px;
  max-width: 86%;
  height: 92px;
  margin: 0 auto;
}

.gi4-decimal-tenths-axis-end {
  position: absolute;
  top: 4px;
  transform: translateX(-50%);
  font-size: 13px;
}

.gi4-decimal-tenths-pointer {
  position: absolute;
  top: 34px;
  height: var(--pointer-drop, 40px);
  border-left: 1.5px solid #111827;
  transform: translateX(-50%);
}

.gi4-decimal-tenths-pointer::after {
  content: "";
  position: absolute;
  left: -4px;
  bottom: -1px;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 8px solid #111827;
}

.gi4-decimal-tenths-axis-questions {
  display: grid;
  grid-template-columns: repeat(2, minmax(170px, 1fr));
  gap: 52px;
  width: min(560px, 94%);
  margin-top: -2px;
}

.gi4-decimal-tenths-axis-question {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 10px 12px 12px;
  background: #fff;
  text-align: center;
}

.gi4-decimal-tenths-axis-sentence {
  margin-bottom: 8px;
}

.gi4-decimal-hundred-card {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 10px;
  background: #fff;
  text-align: center;
  min-height: 238px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-hundred-grid-visual {
  position: relative;
  display: grid;
  grid-template-columns: repeat(10, 10px);
  grid-auto-rows: 10px;
  width: max-content;
  margin: 2px auto 8px;
  border: 1.5px solid #8fa0af;
  background: #fff;
}

.gi4-decimal-hundred-grid-visual span {
  border-right: 1px solid #d6dee8;
  border-bottom: 1px solid #d6dee8;
}

.gi4-decimal-hundred-grid-visual span:nth-child(10n) {
  border-right: 0;
}

.gi4-decimal-hundred-grid-visual span:nth-last-child(-n + 10) {
  border-bottom: 0;
}

.gi4-decimal-hundred-grid-visual::before,
.gi4-decimal-hundred-grid-visual::after {
  content: "";
  position: absolute;
  background: #94a3b8;
  pointer-events: none;
  z-index: 2;
}

.gi4-decimal-hundred-grid-visual::before {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1.5px;
  transform: translateX(-.75px);
}

.gi4-decimal-hundred-grid-visual::after {
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  transform: translateY(-.75px);
}

.gi4-decimal-hundred-grid-visual.puzzle span {
  border-radius: 3px;
}

.gi4-decimal-hundred-circle {
  width: 122px;
  height: 122px;
  display: block;
  margin: 0 auto 8px;
  overflow: visible;
}

.gi4-decimal-hundred-circle .solution-fill-svg,
.gi4-decimal-hundred-grid-visual .solution-fill {
  fill: #fff;
  background: #fff;
}

.solutions-mode .gi4-decimal-hundred-circle .solution-fill-svg {
  fill: #9bd2ea;
}

.solutions-mode .gi4-decimal-hundred-grid-visual .solution-fill {
  background: #9bd2ea;
}

.gi4-decimal-hundred-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 17px;
}

.gi4-decimal-hundred-table th,
.gi4-decimal-hundred-table td {
  border: 1.3px solid #d5e0e8;
  text-align: center;
  vertical-align: middle;
}

.gi4-decimal-hundred-table th {
  background: #dcecc3;
  padding: 7px 8px;
  font-size: 19px;
  font-weight: 800;
}

.gi4-decimal-hundred-table th:nth-child(1) {
  width: 34%;
}

.gi4-decimal-hundred-table th:nth-child(2) {
  width: 27%;
}

.gi4-decimal-hundred-table th:nth-child(3) {
  width: 18%;
}

.gi4-decimal-hundred-table th:nth-child(4) {
  width: 21%;
}

.gi4-decimal-hundred-table td {
  min-height: 190px;
  padding: 12px 10px;
}

.gi4-decimal-hundred-table-visual {
  position: relative;
}

.gi4-decimal-hundred-table-visual .gi4-decimal-hundred-grid-visual {
  grid-template-columns: repeat(10, 13px);
  grid-auto-rows: 13px;
  margin: 0 auto;
}

.gi4-decimal-hundred-table-visual .gi4-decimal-hundred-circle {
  width: 160px;
  height: 160px;
  margin: 0 auto;
}

.gi4-decimal-hundred-table-amount {
  line-height: 1.9;
  font-size: 18px;
}

.gi4-decimal-hundred-table-amount strong,
.gi4-decimal-hundred-table-of {
  display: block;
  margin: 2px 0;
  font-weight: 800;
}

.gi4-decimal-hundred-table-fraction {
  font-size: 18px;
}

.gi4-decimal-hundred-table-mixed-fractions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex-wrap: wrap;
}

.gi4-decimal-hundred-table-comma .gi4-line.long {
  min-width: 92px;
}

.gi4-decimal-fraction-table-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-fraction-table-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 210px;
  gap: 26px;
  align-items: start;
  padding: 18px 20px;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-fraction-table-axis {
  margin: 4px 10px 26px 64px;
}

.gi4-decimal-fraction-table-axis .axis-line {
  position: relative;
  height: 34px;
  border-bottom: 2px solid #2f8996;
}

.gi4-decimal-fraction-table-axis .axis-line::after {
  content: "";
  position: absolute;
  right: -10px;
  bottom: -6px;
  width: 11px;
  height: 11px;
  border-top: 2px solid #2f8996;
  border-right: 2px solid #2f8996;
  transform: rotate(45deg);
}

.gi4-decimal-fraction-table-axis .axis-tick {
  position: absolute;
  bottom: -2px;
  width: 0;
  height: 15px;
  border-left: 2px solid #2f8996;
}

.gi4-decimal-fraction-table-axis .axis-tick b {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  font-size: 18px;
  font-weight: 500;
  white-space: nowrap;
}

.fraction-table-strips {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  border: 1.4px solid #8fa0af;
  border-bottom: 0;
}

.fraction-table-label {
  min-height: 44px;
  display: grid;
  place-items: center;
  border-bottom: 1.4px solid #8fa0af;
  background: #fff;
}

.gi4-decimal-fraction-table-strip {
  display: grid;
  grid-template-columns: repeat(var(--parts), minmax(0, 1fr));
  min-height: 44px;
  border-bottom: 1.4px solid #8fa0af;
  background: #fff;
}

.gi4-decimal-fraction-table-strip span {
  border-right: 1.2px solid #8fa0af;
}

.gi4-decimal-fraction-table-strip span:last-child {
  border-right: 0;
}

.gi4-decimal-fraction-table-strip .solution-fill {
  background: #fff;
}

.solutions-mode .gi4-decimal-fraction-table-strip .solution-fill {
  background: #f46d58;
}

.fraction-table-answers {
  display: grid;
  gap: 12px;
  padding-top: 86px;
  font-size: 18px;
}

.fraction-table-answers > div {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 32px;
}

.fraction-table-answers .gi4-line.medium {
  min-width: 92px;
}

.gi4-percent-grid {
  display: grid;
  gap: 16px;
}

.gi4-percent-read-card,
.gi4-percent-color-card,
.gi4-percent-mixed-card,
.gi4-percent-key-card,
.gi4-percent-convert-card,
.gi4-percent-figures-card,
.gi4-percent-crossword-card,
.gi4-percent-complete-card,
.gi4-percent-survey-card,
.gi4-percent-score-card,
.gi4-percent-compare-card,
.gi4-percent-relation-hundred-card,
.gi4-percent-relation-strip-card,
.gi4-percent-relation-situation-card,
.gi4-percent-relation-equivalent-card,
.gi4-percent-relation-axis-card,
.gi4-percent-relation-mistake-card,
.gi4-percent-word-card {
  padding: 18px 20px;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-percent-read-card,
.gi4-percent-color-card,
.gi4-percent-mixed-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.gi4-percent-hundred-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  width: 210px;
  aspect-ratio: 1;
  border: 1.4px solid #b56ab9;
  background: #fff;
}

.gi4-percent-hundred-grid span {
  border-right: 1px solid #d99bd6;
  border-bottom: 1px solid #d99bd6;
}

.gi4-percent-hundred-grid span:nth-child(10n) {
  border-right: 0;
}

.gi4-percent-hundred-grid span:nth-last-child(-n + 10) {
  border-bottom: 0;
}

.gi4-percent-hundred-grid span:nth-child(5n) {
  border-right-color: #b56ab9;
  border-right-width: 2px;
}

.gi4-percent-hundred-grid span:nth-child(n + 41):nth-child(-n + 50) {
  border-bottom-color: #b56ab9;
  border-bottom-width: 2px;
}

.gi4-percent-hundred-grid .solution-fill {
  background: #fff;
}

.solutions-mode .gi4-percent-hundred-grid .solution-fill,
.gi4-percent-hundred-grid .filled-now {
  background: #f56c5b;
}

.gi4-percent-hundred-grid.black .filled-now {
  background: #22131f;
}

.percent-read-item,
.percent-color-item,
.percent-mixed-item {
  display: grid;
  gap: 14px;
  justify-items: center;
  align-content: start;
}

.percent-read-text {
  width: 100%;
  display: grid;
  gap: 10px;
  font-size: 17px;
  line-height: 1.35;
}

.percent-color-prompt {
  min-height: 48px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.25;
}

.gi4-percent-key-card {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  display: grid;
  gap: 24px 48px;
}

.percent-key-item {
  display: grid;
  gap: 12px;
  align-content: start;
  font-size: 18px;
}

.percent-key-item .gi4-line.wide {
  min-width: 190px;
}

.gi4-percent-convert-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 52px;
  font-size: 18px;
}

.gi4-percent-convert-card > div {
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.gi4-percent-figures-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.percent-figure-panel {
  display: grid;
  gap: 10px;
  align-content: start;
  justify-items: start;
  font-size: 17px;
}

.gi4-percent-crossword-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: 28px;
  align-items: center;
}

.percent-crossword-questions {
  display: grid;
  gap: 14px;
  font-size: 17px;
}

.gi4-percent-word-card {
  display: grid;
  gap: 14px;
  font-size: 18px;
  line-height: 1.35;
}

.gi4-percent-word-card p {
  margin: 0;
}

.gi4-percent-complete-card {
  display: grid;
  gap: 26px;
  font-size: 17px;
}

.percent-complete-item {
  display: grid;
  gap: 12px;
  align-items: start;
}

.percent-complete-rect,
.percent-complete-line {
  --part: 50%;
  --whole-scale: 2;
  position: relative;
  width: min(100%, calc(170px * var(--whole-scale)));
  height: 52px;
}

.percent-complete-rect .known-part,
.percent-complete-rect .missing-part {
  position: absolute;
  top: 0;
  height: 44px;
  border: 2px solid #3b3b3b;
}

.percent-complete-rect .known-part {
  left: 0;
  width: var(--part);
  background: #c9c0df;
}

.percent-complete-rect .missing-part {
  left: var(--part);
  right: 0;
  border-left: 0;
  background: rgba(201, 192, 223, .18);
}

.percent-complete-line {
  height: 34px;
}

.percent-complete-line .known-part,
.percent-complete-line .missing-part {
  position: absolute;
  top: 17px;
  height: 0;
  border-top: 2px solid #333;
}

.percent-complete-line .known-part {
  left: 0;
  width: var(--part);
}

.percent-complete-line .missing-part {
  left: var(--part);
  right: 0;
  border-top-style: dashed;
}

.percent-complete-line .known-part::before,
.percent-complete-line .known-part::after,
.percent-complete-line .missing-part::after {
  content: "";
  position: absolute;
  top: -7px;
  height: 14px;
  border-left: 2px solid #333;
}

.percent-complete-line .known-part::before {
  left: 0;
}

.percent-complete-line .known-part::after {
  right: 0;
}

.percent-complete-line .missing-part::after {
  right: 0;
}

.gi4-percent-survey-card {
  display: grid;
  gap: 16px;
}

.percent-survey-top {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto auto;
  gap: 22px;
  align-items: center;
}

.percent-survey-top p {
  margin: 0;
  font-size: 17px;
  line-height: 1.25;
}

.percent-survey-grid {
  display: grid;
  grid-template-columns: repeat(5, 24px);
  grid-auto-rows: 24px;
  border: 1.3px solid #8db2bd;
}

.percent-survey-grid span {
  border-right: 1px solid #8db2bd;
  border-bottom: 1px solid #8db2bd;
}

.percent-survey-grid span:nth-child(5n) {
  border-right: 0;
}

.percent-survey-grid span:nth-last-child(-n + 5) {
  border-bottom: 0;
}

.percent-color-legend {
  display: grid;
  gap: 6px;
  font-size: 15px;
}

.percent-color-legend > div {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-swatch {
  width: 24px;
  height: 18px;
  border: 1px solid #8db2bd;
}

.swatch-a {
  background: #f7c66a;
}

.swatch-b {
  background: #78c892;
}

.swatch-c {
  background: #a7d8ef;
}

.swatch-d {
  background: #fff29c;
}

.percent-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 16px;
}

.percent-table th,
.percent-table td {
  border: 1.3px solid #a8c8d0;
  min-height: 48px;
  padding: 8px;
  text-align: center;
  vertical-align: middle;
}

.percent-table thead th,
.percent-table tbody th {
  background: #e8f2dd;
  font-weight: 700;
}

.gi4-percent-score-card {
  display: grid;
  gap: 14px;
}

.gi4-percent-score-card p {
  margin: 0;
  font-size: 17px;
}

.percent-score-table {
  font-size: 15px;
}

.percent-score-table th,
.percent-score-table td {
  padding: 6px;
}

.percent-score-table .gi4-fraction-box {
  transform: scale(.88);
}

.percent-table-question {
  font-size: 17px;
  border-top: 1px solid #d8e1e8;
  padding-top: 10px;
}

.gi4-percent-compare-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 44px;
  font-size: 18px;
}

.gi4-percent-compare-card > div {
  display: grid;
  grid-template-columns: 80px 48px 80px;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.gi4-percent-compare-card .gi4-line.symbol {
  min-width: 42px;
  text-align: center;
}

.gi4-percent-relation-hundred-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 28px;
  align-items: center;
}

.percent-relation-hundred-text {
  display: grid;
  gap: 12px;
  font-size: 17px;
  line-height: 1.35;
}

.gi4-percent-hundred-grid.relation-two-color .blue-fill,
.gi4-percent-hundred-grid.relation-two-color .green-fill {
  background: #fff;
}

.solutions-mode .gi4-percent-hundred-grid.relation-two-color .blue-fill {
  background: #8fd1e8;
}

.solutions-mode .gi4-percent-hundred-grid.relation-two-color .green-fill {
  background: #94d18e;
}

.gi4-percent-relation-strip-card {
  display: grid;
  gap: 18px;
}

.percent-strip-wrap {
  width: min(560px, 100%);
  margin: 0 auto;
}

.percent-strip {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  height: 44px;
  border: 2px solid #2f2f2f;
}

.percent-strip span {
  border-right: 2px solid #2f2f2f;
}

.percent-strip span:last-child {
  border-right: 0;
}

.strip-color-0 {
  background: #f46d58;
}

.strip-color-1 {
  background: #fff29c;
}

.strip-color-2 {
  background: #78c892;
}

.strip-color-3 {
  background: #0f78a8;
}

.percent-strip-axis {
  position: relative;
  height: 38px;
  border: 2px solid #ffc46a;
  border-top: 0;
  background: #ffe2a8;
}

.percent-strip-axis span {
  position: absolute;
  top: 0;
  height: 16px;
  border-left: 2px solid #2f2f2f;
  transform: translateX(-1px);
}

.percent-strip-axis b {
  position: absolute;
  bottom: 3px;
  font-size: 18px;
  font-weight: 500;
}

.percent-strip-axis .left {
  left: 0;
}

.percent-strip-axis .right {
  right: 0;
}

.percent-strip-questions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 28px;
  font-size: 16px;
}

.percent-strip-questions > div {
  min-height: 34px;
}

.gi4-percent-relation-situation-card {
  display: grid;
  gap: 14px;
}

.gi4-percent-relation-situation-card p {
  margin: 0;
  max-width: 880px;
  font-size: 17px;
  line-height: 1.25;
}

.relation-situation-table th,
.relation-situation-table td {
  padding: 7px;
}

.percent-relation-answer {
  font-size: 17px;
  border-top: 1px solid #d8e1e8;
  padding-top: 10px;
}

.gi4-percent-relation-equivalent-card {
  display: grid;
  gap: 18px;
}

.percent-equivalent-bank {
  display: grid;
  grid-template-columns: repeat(4, minmax(70px, 1fr));
  gap: 10px 28px;
  font-size: 18px;
}

.percent-equivalent-bank span {
  min-height: 30px;
}

.gi4-percent-relation-axis-card {
  display: grid;
  gap: 18px;
  font-size: 17px;
}

.percent-relation-axis {
  position: relative;
  height: 54px;
  margin: 8px 36px 0;
  border-bottom: 2px solid #3f93a1;
}

.percent-relation-axis::after {
  content: "";
  position: absolute;
  right: -12px;
  bottom: -7px;
  width: 12px;
  height: 12px;
  border-top: 2px solid #3f93a1;
  border-right: 2px solid #3f93a1;
  transform: rotate(45deg);
}

.percent-relation-axis span {
  position: absolute;
  bottom: -1px;
  height: 18px;
  border-left: 2px solid #3f93a1;
}

.percent-relation-axis b {
  position: absolute;
  bottom: -30px;
  transform: translateX(-50%);
  font-size: 17px;
  font-weight: 500;
}

.percent-relation-axis .zero {
  left: 0;
}

.percent-relation-axis .one {
  left: 50%;
}

.percent-order-circles {
  display: grid;
  grid-template-columns: repeat(6, minmax(72px, 1fr));
  gap: 8px;
  align-items: center;
}

.percent-order-circles .gi4-line {
  display: grid;
  place-items: center;
  min-width: 72px;
  height: 72px;
  border: 2px solid #3b3b3b;
  border-radius: 999px;
  background: #dcebc4;
}

.percent-axis-helper {
  display: grid;
  grid-template-columns: repeat(34, 1fr);
  height: 88px;
  border: 1.2px solid #d2e0e7;
}

.percent-axis-helper span {
  border-right: 1px solid #d2e0e7;
  border-bottom: 1px solid #d2e0e7;
}

.gi4-percent-relation-mistake-card {
  display: grid;
  gap: 14px;
  font-size: 18px;
}

.percent-mistake-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  align-items: center;
  gap: 22px;
  min-height: 48px;
  padding: 8px 10px;
  border: 1px solid #d8e1e8;
  border-radius: 8px;
}

.percent-mistake-statements {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: center;
}

.percent-mistake-statements > span {
  white-space: nowrap;
}

.gi4-percent-relation-mistake-card .gi4-line.wide {
  min-width: 130px;
}

.solutions-mode .percent-wrong-part {
  color: #dc2626;
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  font-weight: 800;
}

.gi4-roman-grid {
  display: grid;
  gap: 16px;
}

.gi4-roman-memo-card,
.gi4-roman-calc-card,
.gi4-roman-match-card,
.gi4-roman-split-card,
.gi4-roman-order-card,
.gi4-roman-mistake-card {
  padding: 18px 20px;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-roman-memo-card {
  border-color: #fb923c;
  background: #fff3e4;
  display: grid;
  gap: 14px;
  box-shadow: inset 0 0 0 2px rgba(251, 146, 60, .25);
}

.roman-values-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.roman-values-grid > div {
  display: grid;
  place-items: center;
  min-height: 54px;
  border: 1.3px solid #f6b56f;
  border-radius: 8px;
  background: #fffaf3;
  font-size: 17px;
}

.roman-values-grid strong {
  font-size: 24px;
  color: #7c2d12;
}

.roman-rules {
  display: grid;
  gap: 5px;
  font-size: 16px;
  line-height: 1.25;
}

.roman-rules p {
  margin: 0;
}

.roman-memo-example {
  padding-top: 10px;
  border-top: 1px solid #f6b56f;
  font-size: 17px;
}

.gi4-roman-calc-card {
  display: grid;
  gap: 12px;
  font-size: 18px;
}

.roman-tip {
  color: #f97316;
  font-weight: 800;
}

.roman-calc-row {
  display: grid;
  grid-template-columns: 78px 18px minmax(260px, 1fr) 18px 110px;
  gap: 7px;
  align-items: center;
}

.roman-calc-row.wide {
  grid-template-columns: 78px 18px minmax(250px, 1fr) 18px minmax(170px, .6fr) 18px 100px;
}

.roman-calc-row .gi4-line.long {
  min-width: 230px;
}

.roman-calc-row .gi4-line.medium {
  min-width: 90px;
}

.gi4-roman-match-card {
  display: grid;
  grid-template-columns: minmax(130px, 260px) minmax(130px, 260px);
  justify-content: center;
  gap: 160px;
}

.roman-match-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.roman-match-chip {
  position: relative;
  min-height: 58px;
  display: grid;
  place-items: center;
  border: 1.5px solid #aab4c0;
  border-radius: 8px;
  background: #fff;
  font-size: 18px;
}

.roman-match-chip strong {
  margin: 0;
}

.solutions-mode .roman-match-chip {
  background: var(--roman-match-color, #eef2ff);
  border-color: #7c3aed;
}

.solutions-mode .roman-match-chip::after {
  content: attr(data-answer);
  position: absolute;
  right: 8px;
  bottom: 4px;
  color: #0f8dc4;
  font-size: 12px;
  font-weight: 800;
}

.roman-dot {
  position: absolute;
  right: -18px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #111827;
  transform: translateY(-50%);
}

.roman-match-col:last-child .roman-dot {
  left: -18px;
  right: auto;
}

.gi4-roman-split-card {
  display: grid;
  gap: 20px;
}

.roman-split-item {
  display: grid;
  grid-template-columns: 110px minmax(190px, 260px) minmax(210px, 1fr);
  gap: 22px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid #d8e1e8;
  border-radius: 8px;
  background: #fbfdff;
}

.roman-split-number {
  font-size: 22px;
  text-align: right;
  color: #1A3A5C;
}

.roman-split-parts {
  display: grid;
  gap: 8px;
  padding-left: 14px;
  border-left: 2px solid #9ca3af;
  border-right: 1px solid #d8e1e8;
  padding-right: 18px;
}

.roman-split-answer {
  font-size: 18px;
}

.gi4-roman-order-card {
  display: grid;
  gap: 18px;
  font-size: 18px;
}

.roman-order-source {
  font-weight: 700;
}

.roman-order-line {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.roman-order-line .gi4-line.wide {
  min-width: 120px;
}

.roman-helper-grid {
  display: grid;
  grid-template-columns: repeat(32, 1fr);
  height: 96px;
  border: 1.2px solid #d2e0e7;
}

.roman-helper-grid span {
  border-right: 1px solid #d2e0e7;
  border-bottom: 1px solid #d2e0e7;
}

.gi4-roman-mistake-card {
  display: grid;
  gap: 14px;
  font-size: 18px;
}

.roman-mistake-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  align-items: center;
  gap: 22px;
  min-height: 48px;
  padding: 8px 10px;
  border: 1px solid #d8e1e8;
  border-radius: 8px;
}

.roman-mistake-statements {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: center;
}

.roman-mistake-statements > span {
  white-space: nowrap;
}

.gi4-roman-mistake-card .gi4-line.wide {
  min-width: 130px;
}

.solutions-mode .roman-wrong-part {
  color: #dc2626;
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  font-weight: 800;
}

.percent-word-answer {
  color: #6ba6b3;
  font-weight: 800;
  border-top: 1px solid #d8e1e8;
  padding-top: 10px;
}

.gi4-decimal-hundred-bars {
  display: grid;
  gap: 5px;
  width: 170px;
  margin: 0 auto;
}

.gi4-decimal-hundred-bar {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  height: 13px;
  border: 1.1px solid #8fa0af;
}

.gi4-decimal-hundred-bar span {
  border-right: 1px solid #cbd5e1;
}

.gi4-decimal-hundred-bar span:last-child {
  border-right: 0;
}

.gi4-decimal-hundred-bar span.filled {
  background: #f6cf25;
}

.gi4-decimal-hundred-axis-visual {
  position: relative;
  width: 230px;
  height: 88px;
  margin: 0 auto;
}

.gi4-decimal-hundred-axis {
  position: absolute;
  left: 0;
  right: 0;
  top: 28px;
  height: 34px;
  border-bottom: 1.5px solid #6b7280;
}

.gi4-decimal-hundred-axis .tick {
  position: absolute;
  bottom: -1px;
  height: 7px;
  border-left: 1px solid #94a3b8;
}

.gi4-decimal-hundred-axis .tick.tenth {
  height: 13px;
  border-left-color: #6b7280;
}

.gi4-decimal-hundred-axis .label {
  position: absolute;
  top: -25px;
  transform: translateX(-50%);
  font-size: 12px;
  white-space: nowrap;
}

.gi4-decimal-hundred-axis .marker {
  position: absolute;
  bottom: -1px;
  height: 24px;
  border-left: 2px solid #0ea5e9;
}

.gi4-decimal-hundred-axis .arc {
  position: absolute;
  left: 0;
  bottom: -13px;
  height: 9px;
  border-bottom: 2px solid #67d4f3;
  border-radius: 0 0 50% 50% / 0 0 100% 100%;
  pointer-events: none;
}

.gi4-decimal-hundred-convert-grid {
  display: grid;
  gap: 18px 22px;
}

.gi4-decimal-hundred-convert-grid.grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-decimal-hundred-convert-grid.axis {
  grid-template-columns: 1fr;
}

.gi4-decimal-hundred-convert-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  background: #fff;
  padding: 14px 16px 16px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-hundred-convert-card.grid {
  display: grid;
  justify-items: center;
  gap: 14px;
}

.gi4-decimal-hundred-convert-visual .gi4-decimal-hundred-grid-visual.large {
  grid-template-columns: repeat(10, 15px);
  grid-auto-rows: 15px;
}

.gi4-decimal-hundred-convert-table {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  width: 100%;
  border: 1.3px solid #d5e0e8;
}

.gi4-decimal-hundred-convert-table > div {
  min-height: 58px;
  border-right: 1.3px solid #d5e0e8;
  border-bottom: 1.3px solid #d5e0e8;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px 8px;
  text-align: center;
}

.gi4-decimal-hundred-convert-table > div:nth-child(2n) {
  border-right: 0;
}

.gi4-decimal-hundred-convert-table > div:nth-child(-n + 2) {
  min-height: 34px;
  background: #dcecc3;
  font-size: 20px;
  font-weight: 800;
}

.gi4-decimal-hundred-convert-table > div:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.gi4-decimal-hundred-convert-work {
  display: grid;
  gap: 12px;
  justify-items: center;
}

.gi4-decimal-hundred-convert-work .hundred-sum-group {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 13px;
}

.gi4-decimal-hundred-convert-work .hundred-sum-group::before,
.gi4-decimal-hundred-convert-work .hundred-sum-group::after {
  content: "";
  position: absolute;
  bottom: 2px;
  border-color: #8fb9c8;
}

.gi4-decimal-hundred-convert-work .hundred-sum-group::before {
  left: 5px;
  right: 5px;
  height: 8px;
  border-left: 1.5px solid #8fb9c8;
  border-bottom: 1.5px solid #8fb9c8;
  border-right: 1.5px solid #8fb9c8;
}

.gi4-decimal-hundred-convert-work .hundred-sum-group::after {
  left: 50%;
  width: 1.5px;
  height: 9px;
  background: #8fb9c8;
  transform: translateX(-50%);
}

.gi4-decimal-hundred-convert-work .hundred-sum,
.gi4-decimal-hundred-convert-work .tenth-sum {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.gi4-decimal-hundred-convert-card.axis {
  min-height: 178px;
}

.gi4-decimal-hundred-convert-card.axis .gi4-decimal-hundred-axis-visual {
  width: min(780px, 94%);
  height: 82px;
}

.gi4-decimal-hundred-axis-answer {
  width: min(620px, 88%);
  min-height: 56px;
  margin: 18px auto 0;
  border: 1.5px solid #8b95a1;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex-wrap: wrap;
  font-size: 18px;
}

.gi4-decimal-hundred-compare-grid {
  display: grid;
  gap: 16px 18px;
}

.gi4-decimal-hundred-compare-grid.hundred {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gi4-decimal-hundred-compare-grid.reference {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-decimal-hundred-compare-grid.image {
  grid-template-columns: 1fr;
}

.gi4-decimal-hundred-compare-grid.mixed-hundred {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-decimal-hundred-compare-grid.mixed-hundred.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.gi4-decimal-hundred-compare-grid.mixed-reference {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-decimal-hundred-compare-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 9px;
  background: #fff;
  padding: 14px 12px 16px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-hundred-image-card {
  position: relative;
  border: 1.5px solid #aeb4bc;
  border-radius: 10px;
  background: #fff;
  padding: 14px 18px 16px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-hundred-image-card.strip {
  max-width: 760px;
  margin: 0 auto;
}

.gi4-decimal-hundred-image-top {
  display: grid;
  grid-template-columns: minmax(190px, 260px) 40px minmax(190px, 260px);
  align-items: center;
  justify-items: center;
  justify-content: center;
  gap: 12px;
}

.gi4-decimal-hundred-image-top .image-side {
  display: grid;
  justify-items: center;
  gap: 12px;
}

.gi4-decimal-hundred-image-card .gi4-decimal-hundred-grid-visual.image-compare {
  grid-template-columns: repeat(10, 11px);
  grid-auto-rows: 11px;
  margin: 0 auto;
}

.gi4-decimal-image-answer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.gi4-decimal-image-strip {
  display: grid;
  height: 28px;
  width: 170px;
  border: 1.4px solid #8fa0af;
  background: #fff;
}

.gi4-decimal-image-strip span {
  border-right: 1.2px solid #8fa0af;
}

.gi4-decimal-image-strip span:last-child {
  border-right: 0;
}

.gi4-decimal-image-strip span.filled {
  background: #f8d48a;
}

.gi4-decimal-image-strip-answer {
  display: grid;
  justify-items: center;
  color: #0f2a44;
}

.gi4-decimal-image-strip-answer .strip-conversion {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 58px 4px 44px;
}

.gi4-decimal-image-strip-answer .strip-arrow-svg {
  position: absolute;
  left: 1px;
  top: 28px;
  width: 150px;
  height: 130px;
  overflow: visible;
  pointer-events: none;
  z-index: 3;
}

.gi4-decimal-image-strip-answer .strip-arrow-svg path {
  fill: none;
  stroke: #76a9b5;
  stroke-width: 2.2;
  stroke-linecap: round;
}

.gi4-decimal-image-strip-answer .strip-arrow-svg marker path {
  fill: #76a9b5;
  stroke: none;
}

.gi4-decimal-image-strip-answer .op-label {
  position: absolute;
  left: 72px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 5px;
  color: #76a9b5;
  font-weight: 800;
  font-size: 14px;
  white-space: nowrap;
  z-index: 4;
}

.gi4-decimal-image-strip-answer .op-label.top {
  top: 0;
}

.gi4-decimal-image-strip-answer .op-label.bottom {
  bottom: -2px;
}

.gi4-decimal-image-strip-answer .op-label .gi4-line.short {
  width: 44px;
  min-width: 44px;
}

.gi4-decimal-hundred-compare-card.hundred {
  min-height: 186px;
}

.gi4-decimal-hundred-compare-card.reference {
  min-height: 132px;
}

.gi4-decimal-hundred-compare-card.mixed-hundred {
  min-height: 205px;
  padding: 16px 16px 18px;
}

.gi4-decimal-hundred-compare-card.mixed-hundred.compact {
  min-height: 178px;
  padding: 12px 10px 14px;
}

.gi4-decimal-hundred-compare-card.mixed-reference {
  min-height: 250px;
  padding: 12px 12px 14px;
}

.gi4-decimal-hundred-compare-top {
  display: grid;
  grid-template-columns: 1fr 42px 1fr;
  align-items: center;
  justify-content: center;
  justify-items: center;
  gap: 8px;
  font-size: 18px;
  margin-bottom: 12px;
}

.gi4-decimal-hundred-compare-top.mixed {
  grid-template-columns: minmax(70px, 1fr) 42px minmax(90px, 1fr);
  font-size: 17px;
  margin-bottom: 16px;
}

.gi4-decimal-hundred-compare-top.mixed.compact {
  grid-template-columns: minmax(62px, 1fr) 34px minmax(70px, 1fr);
  gap: 5px;
  font-size: 14px;
  margin-bottom: 8px;
}

.gi4-decimal-hundred-compare-top.mixed-reference {
  grid-template-columns: minmax(70px, 1fr) 38px minmax(80px, 1fr);
  font-size: 16px;
  margin: 6px 0 10px;
}

.gi4-decimal-hundred-compare-work {
  display: grid;
  grid-template-columns: 1fr 42px 1fr;
  align-items: start;
  gap: 8px;
  color: #76a9b5;
  font-weight: 700;
}

.gi4-decimal-hundred-compare-work.mixed {
  grid-template-columns: minmax(90px, 1fr) 36px minmax(170px, 1.3fr);
}

.gi4-decimal-hundred-compare-work.mixed.compact {
  grid-template-columns: minmax(62px, 1fr) 18px minmax(118px, 1.35fr);
  gap: 4px;
}

.gi4-decimal-hundred-compare-work .decimal-side,
.gi4-decimal-hundred-compare-work .fraction-side {
  display: grid;
  justify-items: center;
  gap: 5px;
}

.gi4-decimal-hundred-compare-work .decimal-side {
  grid-column: 1;
  transform: translateX(24px);
}

.gi4-decimal-hundred-compare-work.compact .decimal-side {
  transform: none;
}

.gi4-decimal-hundred-compare-work.compact .side-left {
  grid-column: 1;
}

.gi4-decimal-hundred-compare-work.compact .side-right {
  grid-column: 3;
}

.gi4-decimal-hundred-compare-card .down-arrow {
  width: 0;
  height: 25px;
  border-left: 2px solid #111827;
  position: relative;
  display: inline-block;
}

.gi4-decimal-hundred-compare-card .down-arrow::after {
  content: "";
  position: absolute;
  left: -6px;
  bottom: -1px;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 10px solid #111827;
}

.gi4-decimal-hundred-compare-work .fraction-side {
  grid-column: 3;
  position: relative;
  padding-top: 0;
  min-width: 178px;
  gap: 0;
}

.gi4-decimal-hundred-compare-work.compact .fraction-side {
  min-width: 122px;
}

.gi4-decimal-hundred-compare-work .op-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 15px;
  color: #76a9b5;
  height: 20px;
}

.gi4-decimal-hundred-compare-work.compact .op-label {
  font-size: 13px;
  height: 18px;
}

.gi4-decimal-hundred-compare-work.compact .op-label .gi4-line.short {
  min-width: 42px;
  width: 42px;
}

.gi4-decimal-hundred-compare-work .fraction-conversion {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: #0f2a44;
  position: relative;
  z-index: 1;
}

.gi4-decimal-hundred-compare-work .fraction-conversion.mixed {
  gap: 8px;
}

.gi4-decimal-hundred-compare-work.compact .fraction-conversion.mixed {
  gap: 5px;
  font-size: 14px;
}

.gi4-mixed-inline {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.gi4-decimal-mixed-hundred-compare-result {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.gi4-decimal-hundred-compare-work.compact .gi4-decimal-mixed-hundred-compare-result {
  gap: 3px;
  font-size: 14px;
}

.gi4-decimal-hundred-compare-work.compact .decimal-conversion-arrow {
  width: 118px;
  height: 25px;
  margin: -2px auto;
}

.gi4-decimal-mixed-hundred-compare-result .gi4-fraction-box,
.gi4-mixed-inline .gi4-fraction-box {
  margin: 0;
}

.gi4-decimal-hundred-compare-work .decimal-conversion-arrow {
  width: 128px;
  height: 29px;
  overflow: visible;
  pointer-events: none;
  display: block;
  margin: -1px auto;
  position: relative;
  z-index: 4;
}

.gi4-decimal-hundred-compare-work .decimal-conversion-arrow.top {
  margin-bottom: -3px;
}

.gi4-decimal-hundred-compare-work .decimal-conversion-arrow.bottom {
  margin-top: -3px;
}

.decimal-conversion-arrow path {
  fill: none;
  stroke: #76a9b5;
  stroke-width: 2.2;
  stroke-linecap: round;
}

.decimal-conversion-arrow marker path {
  fill: #76a9b5;
  stroke: none;
}

.gi4-decimal-reference-axis {
  position: relative;
  width: min(520px, 80%);
  height: 52px;
  margin: 6px auto 14px;
  border-bottom: 1.5px solid #8fa0af;
}

.gi4-decimal-mixed-reference-axis {
  position: relative;
  height: 52px;
  margin: 2px 8px 10px;
  border-bottom: 1.5px solid #8fa0af;
}

.gi4-decimal-mixed-reference-axis .label {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  font-size: 13px;
}

.gi4-decimal-mixed-reference-axis .tick {
  position: absolute;
  bottom: -1px;
  height: 9px;
  border-left: 1px solid #8fa0af;
}

.gi4-decimal-mixed-reference-axis .tick.main {
  height: 16px;
  border-left-color: #6b7280;
}

.gi4-decimal-reference-axis .label {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  font-size: 13px;
}

.gi4-decimal-reference-axis .tick {
  position: absolute;
  bottom: -1px;
  height: 10px;
  border-left: 1px solid #8fa0af;
}

.gi4-decimal-reference-axis .tick.main {
  height: 17px;
  border-left-color: #6b7280;
}

.gi4-decimal-reference-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: start;
}

.gi4-decimal-reference-options.mixed {
  gap: 10px;
}

.gi4-decimal-reference-side {
  display: grid;
  justify-items: center;
  gap: 7px;
}

.gi4-decimal-reference-choice {
  min-width: 126px;
  min-height: 44px;
  border: 1.4px solid #b6c0cc;
  border-radius: 8px;
  padding: 5px 8px;
  display: grid;
  place-items: center;
  text-align: center;
  line-height: 1.18;
  background: #fff;
}

.gi4-decimal-reference-title {
  min-height: 30px;
  text-align: center;
  line-height: 1.16;
}

.gi4-decimal-reference-choice.mixed {
  min-width: 0;
  width: 100%;
  min-height: 66px;
  padding: 7px 8px;
  font-size: 14px;
}

.gi4-decimal-mixed-short-compare-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px 28px;
  padding: 6px 6px 8px;
}

.gi4-decimal-mixed-short-compare {
  position: relative;
  display: grid;
  grid-template-columns: minmax(62px, 1fr) 42px minmax(62px, 1fr);
  align-items: center;
  justify-items: center;
  gap: 8px;
  min-height: 56px;
  font-size: 20px;
}

.gi4-decimal-mixed-short-compare .gi4-symbol-box {
  width: 38px;
  height: 34px;
}

.gi4-decimal-mixed-short-compare .row-delete-btn {
  top: -12px !important;
  right: -8px !important;
}

.gi4-decimal-mixed-axis-approx-grid {
  display: grid;
  gap: 22px;
}

.gi4-decimal-mixed-axis-approx {
  position: relative;
  padding: 18px 22px 20px;
  border: 1.5px solid #c3ccd6;
  border-radius: 8px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-mixed-axis-approx-labels {
  position: relative;
  height: 54px;
  margin: 0 22px;
}

.gi4-decimal-mixed-axis-approx-label {
  position: absolute;
  bottom: 0;
  transform: translateX(-50%);
  min-width: 54px;
  min-height: 42px;
  border: 1.5px solid #7da7b8;
  background: #fff;
  display: grid;
  place-items: center;
  padding: 4px 7px;
  font-size: 18px;
}

.gi4-decimal-mixed-axis-approx-label::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  height: 22px;
  border-left: 2px solid #7da7b8;
}

.gi4-decimal-mixed-axis-approx-axis {
  position: relative;
  height: 26px;
  margin: 0 22px 52px;
  border-bottom: 2px solid #7da7b8;
}

.gi4-decimal-mixed-axis-approx-axis::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -5px;
  width: 10px;
  height: 10px;
  border-top: 2px solid #7da7b8;
  border-right: 2px solid #7da7b8;
  transform: rotate(45deg);
}

.gi4-decimal-mixed-axis-approx-axis span {
  position: absolute;
  bottom: -1px;
  height: 22px;
  border-left: 2px solid #7da7b8;
}

.gi4-decimal-axis-connect-cards.mixed-approx {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.gi4-decimal-axis-connect-card.mixed {
  min-width: 72px;
  min-height: 58px;
  font-size: 18px;
}

.gi4-decimal-mixed-pattern-grid {
  display: grid;
  gap: 18px;
  padding: 4px 0 6px;
}

.gi4-decimal-mixed-pattern-row {
  position: relative;
  display: grid;
  grid-template-columns: repeat(11, minmax(58px, 1fr));
  border: 1.3px solid #d2dde6;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-mixed-pattern-row span {
  min-height: 42px;
  display: grid;
  place-items: center;
  border-right: 1.3px solid #d2dde6;
  font-size: 18px;
  padding: 4px 6px;
}

.gi4-decimal-mixed-pattern-row span:last-child {
  border-right: 0;
}

.gi4-decimal-mixed-pattern-row .row-delete-btn {
  position: absolute;
  top: -12px !important;
  right: -10px !important;
}

.gi4-decimal-mixed-hundred-greatest-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(210px, 1fr));
  gap: 30px 74px;
  padding: 8px 26px 12px;
}

.gi4-decimal-mixed-hundred-greatest-card {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1.3px solid #d6e0e8;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-mixed-hundred-greatest-card .gi4-decimal-greatest-choice {
  min-width: 0;
  min-height: 74px;
  border: 0;
  border-radius: 0;
  font-size: 20px;
}

.gi4-decimal-mixed-hundred-greatest-card .gi4-decimal-greatest-choice + .gi4-decimal-greatest-choice {
  border-left: 1.3px solid #d6e0e8;
}

.gi4-decimal-mixed-hundred-greatest-card .row-delete-btn {
  top: -12px !important;
  right: -12px !important;
}

.solutions-mode .gi4-decimal-reference-choice .solution-highlight {
  color: #14732c;
  font-weight: 800;
  text-decoration: underline;
}

.gi4-decimal-axis-connect-grid {
  display: grid;
  gap: 24px;
}

.gi4-decimal-hundred-axis-connect {
  position: relative;
  border: 1.5px solid #c3ccd6;
  border-radius: 9px;
  background: #fff;
  padding: 18px 26px 28px;
  min-height: 190px;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-axis-connect-labels {
  position: relative;
  height: 48px;
  margin: 0 22px 0 8px;
}

.gi4-decimal-axis-connect-label {
  position: absolute;
  bottom: 12px;
  transform: translateX(-50%);
  min-width: 39px;
  min-height: 30px;
  padding: 4px 7px;
  border: 1.5px solid #7aa5b5;
  background: #fff;
  display: grid;
  place-items: center;
  font-size: 15px;
  line-height: 1;
  box-sizing: border-box;
}

.gi4-decimal-axis-connect-label::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  height: 12px;
  border-left: 1.5px solid #7aa5b5;
  transform: translateX(-50%);
}

.gi4-decimal-axis-connect-label.empty {
  min-width: 42px;
}

.gi4-decimal-axis-connect-axis {
  position: relative;
  height: 0;
  margin: 0 22px 92px 8px;
  border-bottom: 1.5px solid #7aa5b5;
}

.gi4-decimal-axis-connect-axis::before {
  content: "";
  position: absolute;
  left: 100%;
  bottom: -1.5px;
  width: 14px;
  border-bottom: 1.5px solid #7aa5b5;
}

.gi4-decimal-axis-connect-axis::after {
  content: "";
  position: absolute;
  right: -18px;
  bottom: -5px;
  width: 10px;
  height: 10px;
  border-top: 1.5px solid #7aa5b5;
  border-right: 1.5px solid #7aa5b5;
  transform: rotate(45deg);
}

.gi4-decimal-axis-connect-axis .tick {
  position: absolute;
  bottom: -1px;
  height: 7px;
  border-left: 1px solid #9db6c4;
}

.gi4-decimal-axis-connect-axis .tick.tenth {
  height: 13px;
  border-left-color: #6e9bab;
}

.gi4-decimal-axis-connect-cards {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.gi4-decimal-axis-connect-card {
  position: relative;
  min-width: 54px;
  min-height: 34px;
  padding: 6px 10px;
  border: 1.4px solid #aeb6c0;
  border-radius: 7px;
  background: #fff;
  display: grid;
  place-items: center;
  font-size: 16px;
}

.gi4-decimal-axis-connect-card .gi4-connect-dot.top {
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
}

.gi4-decimal-hundred-jumps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 28px;
}

.gi4-decimal-hundred-jump-card {
  position: relative;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-hundred-jump-card:has(.gi4-decimal-hundred-jump-row span:nth-child(n+8)) {
  grid-column: 1 / -1;
}

.gi4-decimal-hundred-jump-tag {
  display: inline-flex;
  align-items: center;
  min-height: 31px;
  padding: 5px 17px;
  margin-bottom: 8px;
  border: 1.5px solid #8cc84b;
  border-radius: 8px;
  background: #dff3bd;
  font-weight: 800;
}

.gi4-decimal-hundred-jump-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(50px, 1fr);
  border-top: 1.2px solid #d5e0e8;
  border-left: 1.2px solid #d5e0e8;
}

.gi4-decimal-hundred-jump-row span {
  min-height: 34px;
  padding: 6px 8px;
  border-right: 1.2px solid #d5e0e8;
  border-bottom: 1.2px solid #d5e0e8;
  display: grid;
  place-items: center;
  font-size: 16px;
}

.gi4-decimal-hundred-jump-row .gi4-line.short {
  width: 40px;
  min-width: 40px;
}

.gi4-decimal-strip {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  height: 26px;
  border: 1.5px solid #9aa8b7;
  background: #fff;
}

.gi4-decimal-strip.compact {
  height: 19px;
}

.gi4-decimal-strip span {
  border-right: 1px solid #cbd5e1;
}

.gi4-decimal-strip span:last-child {
  border-right: 0;
}

.gi4-decimal-strip .solution-fill,
.gi4-decimal-grid-visual .solution-fill {
  background: #fff;
}

.solutions-mode .gi4-decimal-strip .solution-fill,
.solutions-mode .gi4-decimal-grid-visual .solution-fill {
  background: #9bd2ea;
}

.gi4-decimal-circle {
  width: 88px;
  height: 88px;
  display: block;
  margin: 4px auto;
  overflow: visible;
}

.gi4-decimal-circle .solution-fill-svg {
  fill: #fff;
}

.solutions-mode .gi4-decimal-circle .solution-fill-svg {
  fill: #9bd2ea;
}

.gi4-decimal-grid-visual {
  display: grid;
  grid-template-columns: repeat(5, 24px);
  grid-auto-rows: 24px;
  width: max-content;
  margin: 8px auto;
  border: 1.5px solid #9aa8b7;
  background: #fff;
}

.gi4-decimal-grid-visual span {
  border-right: 1px solid #cbd5e1;
  border-bottom: 1px solid #cbd5e1;
}

.gi4-decimal-grid-visual span:nth-child(5n) {
  border-right: 0;
}

.gi4-decimal-grid-visual span:nth-last-child(-n + 5) {
  border-bottom: 0;
}

.gi4-decimal-eggs {
  display: grid;
  grid-template-columns: repeat(5, 20px);
  gap: 4px 6px;
  justify-content: center;
  margin: 8px auto;
}

.gi4-decimal-eggs span {
  width: 18px;
  height: 24px;
  border: 1.5px solid #cbd5e1;
  border-radius: 50% 50% 45% 45%;
  background: #fff;
}

.gi4-decimal-eggs span.filled {
  background: #d6b38d;
}

.solutions-mode .gi4-decimal-eggs .solution-fill {
  background: #d6b38d;
}

.gi4-decimal-axis {
  position: relative;
  height: 58px;
  margin: 8px 18px 2px;
}

.gi4-decimal-axis-line {
  position: absolute;
  left: 0;
  right: 0;
  top: 28px;
  border-top: 1.6px solid #7aa8b7;
}

.gi4-decimal-axis-line::after {
  content: "";
  position: absolute;
  right: -9px;
  top: -5px;
  width: 9px;
  height: 9px;
  border-top: 1.6px solid #7aa8b7;
  border-right: 1.6px solid #7aa8b7;
  transform: rotate(45deg);
  background: transparent;
}

.gi4-decimal-axis-tick {
  position: absolute;
  top: 20px;
  height: 16px;
  border-left: 1px solid #7aa8b7;
  transform: translateX(-.5px);
}

.gi4-decimal-axis-tick.major {
  top: 14px;
  height: 22px;
  border-left-width: 1.5px;
}

.gi4-decimal-axis-label,
.gi4-decimal-axis-decimal {
  position: absolute;
  top: 36px;
  transform: translateX(-50%);
  font-weight: 800;
  font-size: 13px;
}

.gi4-decimal-axis-decimal {
  font-size: 11px;
  font-weight: 700;
}

.gi4-decimal-axis-marker {
  position: absolute;
  top: 12px;
  height: 26px;
  border-left: 2px solid #111827;
  transform: translateX(-1px);
}

.gi4-decimal-axis-visual {
  margin-top: 4px;
}

.gi4-decimal-answer-box,
.gi4-decimal-convert-work,
.gi4-decimal-reference-row,
.gi4-decimal-visual-compare {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.gi4-decimal-answer-box {
  margin-top: 9px;
}

.gi4-decimal-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-decimal-table th {
  background: #c7eefa;
  padding: 6px;
  border: 1px solid #d8e3ec;
}

.gi4-decimal-table td {
  border: 1px solid #d8e3ec;
  padding: 7px;
  text-align: center;
  vertical-align: middle;
}

.gi4-decimal-table th:first-child,
.gi4-decimal-table td:first-child {
  width: 38%;
}

.gi4-decimal-table .gi4-table-row-actions {
  width: 34px;
  padding: 4px;
  text-align: center;
}

.gi4-decimal-table .gi4-table-row-actions .row-delete-btn {
  position: static !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transform: none !important;
}

.gi4-decimal-strip-color-grid,
.gi4-decimal-riddle-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-strip-color-card,
.gi4-decimal-riddle-card {
  padding: 18px 22px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-strip-color-card {
  display: grid;
  gap: 18px;
}

.gi4-decimal-strip-color-row {
  display: grid;
  gap: 8px;
}

.gi4-decimal-strip-color-row .strip-label {
  min-height: 28px;
  display: flex;
  align-items: center;
  font-size: 18px;
  font-weight: 500;
}

.gi4-decimal-strip-color-row .strip-label .gi4-fraction-box {
  grid-template-rows: 18px 4px 18px;
  width: 34px;
  margin: 0;
}

.gi4-decimal-strip-color-row .strip-label .gi4-fraction-stroke {
  width: 32px;
}

.gi4-decimal-strip-color-row .gi4-decimal-strip {
  width: 100% !important;
  max-width: 100% !important;
  height: 36px;
  border-color: #9ab8c4;
}

.gi4-decimal-strip-color-row .gi4-decimal-strip span {
  border-right-color: #9ab8c4;
}

.gi4-decimal-riddle-card {
  display: grid;
  gap: 16px;
}

.gi4-decimal-riddle-row {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) 190px;
  align-items: center;
  gap: 28px;
  min-height: 34px;
  font-size: 18px;
}

.gi4-decimal-riddle-row .gi4-line.medium {
  justify-self: stretch;
}

@media print {
  .gi4-decimal-table .gi4-table-row-actions {
    display: none !important;
  }
}

html.exporting .gi4-decimal-table .gi4-table-row-actions {
  display: none !important;
}

.gi4-decimal-place-table-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-place-table-card {
  padding: 16px 18px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-place-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 17px;
}

.gi4-decimal-place-table th,
.gi4-decimal-place-table td {
  text-align: center;
  vertical-align: middle;
}

.gi4-decimal-place-table th:not(.prompt-col):not(.answer-col),
.gi4-decimal-place-table td:not(.prompt-col):not(.answer-col) {
  width: 52px;
  height: 48px;
  border: 1.3px solid #9db9c4;
}

.gi4-decimal-place-table th {
  height: 40px;
  font-weight: 800;
}

.gi4-decimal-place-table th:nth-child(2),
.gi4-decimal-place-table th:nth-child(3),
.gi4-decimal-place-table th:nth-child(4) {
  background: #ddecbe;
}

.gi4-decimal-place-table th.comma-col,
.gi4-decimal-place-table td.comma-col {
  width: 14px;
  min-width: 14px;
  background: #bfc1c4;
  border-left: 0;
  border-right: 0;
  color: #111827;
  font-weight: 900;
}

.gi4-decimal-place-table th:nth-child(6),
.gi4-decimal-place-table td:nth-child(6) {
  background: #d8eef7;
}

.gi4-decimal-place-table .prompt-col {
  width: 220px;
  padding-right: 22px;
  text-align: left;
  border: 0;
}

.gi4-decimal-place-table .answer-col {
  width: 230px;
  padding-left: 36px;
  text-align: left;
  border: 0;
}

.gi4-decimal-place-table tbody tr {
  height: 54px;
}

.gi4-decimal-place-table-prompt-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.gi4-decimal-place-table-prompt-inline .gi4-fraction-box {
  grid-template-rows: 20px 5px 20px;
  width: 42px;
  margin: 0;
}

.gi4-decimal-place-table-prompt-inline .gi4-fraction-stroke {
  width: 40px;
}

.gi4-decimal-place-table td:not(.prompt-col):not(.answer-col) .gi4-solution-answer {
  position: relative;
  top: -2px;
  font-weight: 800;
}

.gi4-g4-hundred-grid {
  display: grid;
  gap: 14px;
}

.gi4-g4-hundred-grid.connect {
  grid-template-columns: repeat(2, minmax(300px, 1fr));
  align-items: start;
}

.gi4-g4-hundred-intro-card,
.gi4-g4-hundred-grid-write-card,
.gi4-g4-hundred-fraction-decimal-card,
.gi4-g4-hundred-decimal-fraction-card,
.gi4-g4-hundred-meter-card,
.gi4-g4-hundred-place-card,
.gi4-g4-hundred-digit-value-card,
.gi4-g4-hundred-split-card,
.gi4-g4-hundred-compose-card,
.gi4-g4-hundred-round-card,
.gi4-g4-hundred-whole-card,
.gi4-g4-hundred-axis-card,
.gi4-g4-hundred-zoom-axis-card,
.gi4-g4-hundred-jumps-card,
.gi4-g4-hundred-compare-card,
.gi4-g4-hundred-connect-card {
  padding: 16px 20px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-g4-hundred-grid-visual {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  width: 118px;
  height: 118px;
  border: 1.4px solid #6b7280;
}

.gi4-g4-hundred-grid-visual span {
  border-right: 1px solid #6b7280;
  border-bottom: 1px solid #6b7280;
  background: #fff;
}

.gi4-g4-hundred-grid-visual span:nth-child(10n) {
  border-right: 0;
}

.gi4-g4-hundred-grid-visual span:nth-child(n+91) {
  border-bottom: 0;
}

.gi4-g4-hundred-grid-visual .filled-now,
.solutions-mode .gi4-g4-hundred-grid-visual .solution-fill {
  background: #dceec9;
}

.hundred-intro-top {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-bottom: 26px;
  font-size: 18px;
}

.hundred-intro-rows {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 40px;
}

.hundred-intro-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
}

.gi4-g4-hundred-grid-write-card {
  display: grid;
  gap: 24px;
}

.gi4-g4-hundred-grid-write-card .grid-write-example {
  display: grid;
  grid-template-columns: auto auto auto auto auto;
  align-items: center;
  justify-content: start;
  gap: 16px;
  font-size: 18px;
}

.gi4-g4-hundred-grid-write-card .grid-write-singles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px 34px;
}

.gi4-g4-hundred-grid-write-card .grid-write-item {
  display: grid;
  justify-items: center;
  gap: 10px;
  font-size: 17px;
}

.gi4-g4-hundred-grid-write-card .grid-write-mixed {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.gi4-g4-hundred-grid-write-card .grid-write-mixed-item {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 17px;
}

.gi4-g4-hundred-grid-write-card .grid-write-mixed-visuals {
  flex: 0 0 100%;
  display: flex;
  justify-content: center;
  gap: 12px;
}

.gi4-g4-hundred-fraction-decimal-card,
.gi4-g4-hundred-decimal-fraction-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 22px 70px;
  font-size: 18px;
}

.gi4-g4-hundred-fraction-decimal-card > div,
.gi4-g4-hundred-decimal-fraction-card > div {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.gi4-g4-hundred-digit-value-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.gi4-g4-hundred-digit-value-card .digit-value-block {
  display: grid;
  grid-template-columns: 86px 1fr;
  grid-template-rows: auto 1fr auto;
  align-items: start;
  gap: 14px 20px;
  min-height: 270px;
  font-size: 18px;
}

.gi4-g4-hundred-digit-value-card strong {
  font-size: 20px;
  grid-row: 1 / 3;
}

.gi4-g4-hundred-digit-value-card .digit-value-rows {
  display: grid;
  gap: 12px;
}

.gi4-g4-hundred-digit-value-card .digit-value-rows > div {
  display: grid;
  grid-template-columns: 22px 82px;
  align-items: center;
  gap: 10px;
}

.gi4-g4-hundred-digit-value-card .digit-value-split {
  grid-column: 1 / 3;
  align-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 8px;
}

.gi4-g4-hundred-split-card,
.gi4-g4-hundred-compose-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px 34px;
  font-size: 18px;
}

.gi4-g4-hundred-compose-card {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.gi4-g4-hundred-round-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.gi4-g4-hundred-round-card .round-section {
  display: grid;
  gap: 16px;
}

.gi4-g4-hundred-round-card h4 {
  margin: 0 0 2px;
  font-size: 17px;
  font-weight: 800;
}

.gi4-g4-hundred-round-card .round-row {
  display: grid;
  grid-template-columns: 88px 80px 88px 58px;
  align-items: center;
  justify-items: center;
  min-height: 38px;
  font-size: 18px;
}

.gi4-g4-hundred-round-card .round-row strong {
  font-weight: 700;
}

.gi4-g4-hundred-round-card .round-row .gi4-line.tiny {
  min-width: 44px;
}

.gi4-g4-hundred-meter-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 28px;
  border-color: #9db9c4;
}

.gi4-g4-hundred-meter-card .meter-row {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 17px;
}

.gi4-g4-hundred-place-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-g4-hundred-place-table th,
.gi4-g4-hundred-place-table td {
  height: 44px;
  text-align: center;
  border: 1.3px solid #9db9c4;
}

.gi4-g4-hundred-place-table th {
  background: #ddecbe;
  font-weight: 800;
}

.gi4-g4-hundred-place-table th:nth-child(5),
.gi4-g4-hundred-place-table td:nth-child(5) {
  width: 16px;
  background: #bfc1c4;
  font-weight: 900;
}

.gi4-g4-hundred-place-table th:nth-child(6),
.gi4-g4-hundred-place-table th:nth-child(7) {
  background: #d8eef7;
}

.gi4-g4-hundred-place-table .prompt {
  width: 190px;
  border: 0;
  text-align: left;
}

.gi4-g4-hundred-place-table .answer {
  width: 180px;
  border: 0;
  padding-left: 22px;
  text-align: left;
}

.gi4-g4-hundred-whole-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.gi4-g4-hundred-whole-card .between-box,
.gi4-g4-hundred-whole-card .fill-box {
  display: grid;
  gap: 14px;
  font-size: 18px;
}

.g4-hundred-axis {
  position: relative;
  height: 112px;
  margin: 18px 28px 22px;
  border-top: 2px solid #438da0;
}

.g4-hundred-axis::after {
  content: "";
  position: absolute;
  right: -8px;
  top: -7px;
  width: 12px;
  height: 12px;
  border-top: 2px solid #438da0;
  border-right: 2px solid #438da0;
  transform: rotate(45deg);
}

.g4-hundred-axis > span {
  position: absolute;
  top: -13px;
  height: 26px;
  border-left: 2px solid #438da0;
}

.g4-hundred-axis > b {
  position: absolute;
  top: 16px;
  transform: translateX(-50%);
  font-size: 17px;
  font-weight: 500;
}

.g4-hundred-axis > em {
  position: absolute;
  top: 38px;
  transform: translateX(-50%);
  width: 58px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1.4px solid #b7c9d8;
  background: #fff;
  font-style: normal;
}

.gi4-g4-hundred-zoom-axis-card {
  position: relative;
  min-height: 390px;
  overflow: hidden;
}

.gi4-g4-hundred-zoom-axis-card .zoom-top-axis,
.gi4-g4-hundred-zoom-axis-card .zoom-bottom-axis {
  position: absolute;
  left: 34px;
  right: 34px;
  height: 92px;
  margin: 0;
  border-top: 2px solid #438da0;
}

.gi4-g4-hundred-zoom-axis-card .zoom-top-axis {
  top: 88px;
}

.gi4-g4-hundred-zoom-axis-card .zoom-bottom-axis {
  top: 292px;
}

.gi4-g4-hundred-zoom-axis-card .zoom-top-axis::after,
.gi4-g4-hundred-zoom-axis-card .zoom-bottom-axis::after {
  content: "";
  position: absolute;
  right: -8px;
  top: -7px;
  width: 12px;
  height: 12px;
  border-top: 2px solid #438da0;
  border-right: 2px solid #438da0;
  transform: rotate(45deg);
}

.gi4-g4-hundred-zoom-axis-card .zoom-tick {
  position: absolute;
  top: -13px;
  height: 26px;
  border-left: 2px solid #438da0;
}

.gi4-g4-hundred-zoom-axis-card b {
  position: absolute;
  top: 16px;
  transform: translateX(-50%);
  font-size: 17px;
  font-weight: 500;
}

.gi4-g4-hundred-zoom-axis-card em {
  position: absolute;
  top: 28px;
  transform: translateX(-50%);
  width: 58px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1.4px solid #b7c9d8;
  background: #fff;
  font-style: normal;
  z-index: 2;
}

.gi4-g4-hundred-zoom-axis-card .zoom-lines {
  position: absolute;
  left: 34px;
  right: 34px;
  top: 88px;
  width: calc(100% - 68px);
  height: 204px;
  pointer-events: none;
  z-index: 1;
}

.gi4-g4-hundred-zoom-axis-card .zoom-lines line {
  stroke: #438da0 !important;
  stroke-width: 1.6;
  vector-effect: non-scaling-stroke;
}

.gi4-g4-hundred-zoom-axis-card .step-arc {
  position: absolute;
  left: calc(34px + (var(--arc-left, 0) * ((100% - 68px) / 12)));
  width: calc((100% - 68px) / 12);
  height: 52px;
  pointer-events: none;
  z-index: 3;
}

.gi4-g4-hundred-zoom-axis-card .top-jump {
  top: 32px;
}

.gi4-g4-hundred-zoom-axis-card .bottom-jump {
  top: 238px;
}

.gi4-g4-hundred-zoom-axis-card .step-arc-label {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 17px;
  font-weight: 500;
}

.gi4-g4-hundred-zoom-axis-card .step-arc svg {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 40px;
  overflow: visible;
}

.gi4-g4-hundred-zoom-axis-card .step-arc path {
  fill: none;
  stroke: #333;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.gi4-g4-hundred-jumps-card {
  display: grid;
  gap: 28px;
}

.gi4-g4-hundred-jumps-card .jump-row {
  position: relative;
  min-height: 100px;
  font-size: 18px;
}

.gi4-g4-hundred-jumps-card .jump-values {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(10, minmax(54px, 1fr));
  align-items: end;
  column-gap: 10px;
}

.gi4-g4-hundred-jumps-card .jump-values > span {
  min-height: 32px;
  display: grid;
  place-items: center;
}

.gi4-g4-hundred-jumps-card .jump-arrows {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 56px;
  pointer-events: none;
}

.gi4-g4-hundred-jumps-card .jump-arrow-note {
  position: absolute;
  left: var(--jump-left);
  top: 0;
  width: calc(10% + 1px);
  height: 62px;
}

.gi4-g4-hundred-jumps-card .jump-answer-line {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  width: 76px;
  display: grid;
  place-items: center;
}

.gi4-g4-hundred-jumps-card .jump-answer-line .gi4-line.tiny {
  min-width: 74px;
}

.gi4-g4-hundred-jumps-card .jump-arrow-note svg {
  position: absolute;
  left: 0;
  top: 20px;
  width: 100%;
  height: 42px;
  overflow: visible;
}

.gi4-g4-hundred-jumps-card .jump-arrow-note path {
  fill: none;
  stroke: #333;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.gi4-g4-hundred-jumps-card .jump-arrow-note.dotted path {
  stroke-dasharray: 2 5;
}

.gi4-g4-hundred-compare-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px 46px;
  font-size: 18px;
}

.gi4-g4-hundred-compare-card .compare-item {
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  align-items: center;
  justify-items: center;
  gap: 10px;
}

.gi4-g4-hundred-compare-card .gi4-compare-symbol-box {
  width: 40px;
  height: 32px;
  border-color: #333;
}

.gi4-g4-hundred-connect-card {
  display: grid;
  grid-template-columns: repeat(2, max-content);
  justify-content: center;
  gap: 54px;
  width: min(100%, 520px);
  margin: 0 auto;
  font-size: 18px;
}

.gi4-g4-hundred-connect-card .connect-col {
  display: grid;
  gap: 18px;
  min-width: 150px;
}

.gi4-g4-hundred-connect-card .connect-col div {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.gi4-g4-hundred-connect-card i {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #111827;
}

@media (max-width: 900px) {
  .gi4-g4-hundred-grid.connect {
    grid-template-columns: 1fr;
  }
}

.solutions-mode .gi4-g4-hundred-connect-card .solution-group-31 { color: #0284c7; font-weight: 800; }
.solutions-mode .gi4-g4-hundred-connect-card .solution-group-30 { color: #16a34a; font-weight: 800; }
.solutions-mode .gi4-g4-hundred-connect-card .solution-group-318 { color: #dc2626; font-weight: 800; }
.solutions-mode .gi4-g4-hundred-connect-card .solution-group-310 { color: #7c3aed; font-weight: 800; }

.gi4-negative-grid {
  display: grid;
  gap: 14px;
}

.gi4-negative-axis-card,
.gi4-negative-order-card,
.gi4-negative-true-card,
.gi4-negative-thermo-card {
  padding: 16px 20px;
  border: 1.4px solid #b7c9d8;
  border-radius: 8px;
  background: #fff;
}

.gi4-negative-axis-card .negative-axis {
  position: relative;
  height: 94px;
  margin: 20px 40px 10px;
  border-top: 2px solid #438da0;
}

.gi4-negative-axis-card .negative-axis::after {
  content: "";
  position: absolute;
  right: -8px;
  top: -7px;
  width: 12px;
  height: 12px;
  border-top: 2px solid #438da0;
  border-right: 2px solid #438da0;
  transform: rotate(45deg);
}

.gi4-negative-axis-card .negative-axis > span {
  position: absolute;
  top: -13px;
  height: 26px;
  border-left: 2px solid #438da0;
}

.gi4-negative-axis-card .negative-axis em {
  position: absolute;
  top: 16px;
  transform: translateX(-50%);
  width: 52px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1.4px solid #b7c9d8;
  background: #fff;
  font-style: normal;
  font-size: 18px;
}

.gi4-negative-axis-card .negative-axis em .gi4-line.tiny {
  min-width: 34px;
  width: 34px;
}

.gi4-negative-order-card {
  display: grid;
  gap: 28px;
  font-size: 19px;
}

.gi4-negative-order-card .temp-list {
  word-spacing: 12px;
}

.gi4-negative-order-card .gi4-line.long {
  min-width: 86%;
}

.gi4-negative-true-card {
  display: grid;
  gap: 18px;
  font-size: 18px;
}

.gi4-negative-true-card > div {
  display: grid;
  grid-template-columns: 1fr 220px;
  align-items: center;
  gap: 24px;
}

.gi4-negative-thermo-card .negative-thermo-table {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1.4px solid #9db9c4;
}

.gi4-negative-thermo-card .thermo-col,
.gi4-negative-thermo-card .thermo-diff {
  min-height: 370px;
  border-right: 1.4px solid #9db9c4;
}

.gi4-negative-thermo-card .thermo-diff {
  grid-column: 1 / -1;
  border-right: 0;
  border-top: 1.4px solid #9db9c4;
  min-height: 96px;
}

.gi4-negative-thermo-card h4 {
  margin: 0;
  padding: 8px 10px;
  text-align: center;
  background: #ddecbe;
  border-bottom: 1.4px solid #9db9c4;
  font-size: 17px;
  font-weight: 900;
}

.gi4-negative-thermo-card .thermo-body {
  display: grid;
  grid-template-columns: 1fr;
  justify-items: center;
  gap: 10px;
  padding: 18px 16px 20px;
  font-size: 18px;
}

.gi4-negative-thermo-card .thermo-sentence {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  padding-top: 0;
  white-space: nowrap;
}

.gi4-negative-thermo-card .gi4-line {
  height: 24px;
  line-height: 20px;
  text-align: center;
}

.solutions-mode .gi4-negative-thermo-card .gi4-line .gi4-solution-answer {
  position: relative;
  top: -3px;
}

.gi4-negative-thermo-card .thermo-diff > div {
  padding: 22px 24px;
  font-size: 18px;
  line-height: 1.8;
}

.gi4-negative-thermometer {
  width: 175px;
  height: 315px;
  overflow: visible;
  filter: drop-shadow(3px 4px 4px rgba(15, 23, 42, .12));
}

.gi4-negative-thermometer .major {
  stroke: #111827;
  stroke-width: 2;
}

.gi4-negative-thermometer .minor {
  stroke: #111827;
  stroke-width: 1.2;
}

.gi4-negative-thermometer .reading-mark {
  stroke: #111827;
  stroke-width: 2;
}

.gi4-negative-thermometer .thermo-title,
.gi4-negative-thermometer .thermo-label {
  fill: #111827;
  font-weight: 900;
  font-size: 17px;
  font-family: Arial, sans-serif;
}

.gi4-negative-thermometer .thermo-title {
  font-size: 24px;
}

.gi4-decimal-compare-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  font-size: 18px;
  min-height: 46px;
}

.gi4-compare-box {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 34px;
  border: 2px solid #1f2937;
  background: #fff;
}

.gi4-decimal-compare-value {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  font-weight: 800;
}

.gi4-decimal-convert-work,
.gi4-decimal-reference-row {
  margin-top: 10px;
}

.gi4-decimal-reference-row chip,
.gi4-decimal-reference-row span {
  display: inline-flex;
  min-width: 115px;
}

.gi4-decimal-visual-compare {
  justify-content: space-around;
  margin: 2px 0 8px;
}

.gi4-decimal-order-list {
  position: relative;
  height: 176px;
  margin: 8px 18px 0;
  text-align: center;
}

.gi4-decimal-order-col {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  min-width: 40px;
}

.gi4-decimal-order-list span {
  background: #fff7c2;
  border: 1px solid #e0b800;
  border-radius: 6px;
  padding: 3px;
  font-weight: 800;
}

.gi4-decimal-order-list .whole {
  color: #e11d48;
}

.gi4-decimal-missing-axis {
  position: relative;
  width: 100%;
  max-width: 650px;
  margin: 0 auto;
  padding: 42px 38px 4px;
  box-sizing: border-box;
  overflow: visible;
}

.gi4-decimal-missing-track {
  position: relative;
  height: 30px;
}

.gi4-decimal-missing-line {
  position: absolute;
  left: 0;
  right: -12px;
  top: 18px;
  border-top: 1.5px solid #374151;
}

.gi4-decimal-missing-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -4.5px;
  width: 8px;
  height: 8px;
  border-top: 1.5px solid #374151;
  border-right: 1.5px solid #374151;
  transform: rotate(45deg);
  background: #fff;
}

.gi4-decimal-missing-tick {
  position: absolute;
  top: 7px;
  height: 20px;
  border-left: 1.2px solid #374151;
  transform: translateX(-.5px);
}

.gi4-decimal-missing-tick.major {
  top: -6px;
  height: 33px;
}

.gi4-decimal-missing-end {
  position: absolute;
  top: -38px;
  transform: translateX(-50%);
  min-width: 37px;
  min-height: 31px;
  border: 1.2px solid #d8b600;
  background: #ffe27c;
  border-radius: 7px;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 16px;
  box-sizing: border-box;
}

.gi4-decimal-missing-grid {
  position: relative;
  height: 146px;
  margin-top: 0;
}

.gi4-decimal-missing-col {
  position: absolute;
  top: 0;
  width: 52px;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 8px;
  min-width: 0;
}

.gi4-decimal-missing-chip {
  position: static;
  transform: none;
  min-width: 40px;
  min-height: 31px;
  padding: 3px 7px;
  border: 1px solid #cbd5e1;
  border-radius: 7px;
  display: grid;
  place-items: center;
  background: #fff7c2;
  font-weight: 800;
  font-size: 16px;
  box-sizing: border-box;
  white-space: nowrap;
}

.gi4-decimal-missing-fraction {
  min-width: 40px;
  min-height: 46px;
  padding: 4px 6px;
  border: 1.2px solid #cbd5e1;
  border-radius: 7px;
  background: #fff;
  display: grid;
  grid-template-rows: 16px 1px 16px;
  justify-items: center;
  align-items: center;
  font-weight: 800;
  font-size: 15px;
  line-height: 1;
  box-sizing: border-box;
}

.gi4-decimal-missing-fraction.simple {
  background: #f4fbff;
}

.gi4-decimal-missing-fraction i {
  width: 25px;
  border-top: 1.3px solid #374151;
}

.gi4-decimal-jump-tag {
  display: inline-block;
  background: #ffcf75;
  border: 1px solid #f59e0b;
  border-radius: 6px;
  padding: 4px 8px;
  font-weight: 800;
  margin-bottom: 8px;
}

.gi4-decimal-jump-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border: 1px solid #d8e3ec;
}

.gi4-decimal-jump-row span {
  min-height: 32px;
  display: grid;
  place-items: center;
  border-right: 1px solid #d8e3ec;
}

.gi4-decimal-jump-row span:last-child {
  border-right: 0;
}

.gi4-decimal-greatest-card {
  display: flex;
  align-items: center;
  justify-content: space-around;
  min-height: 74px;
}

.solutions-mode .gi4-decimal-greatest-card .solution-highlight {
  background: #d9f5d6;
  border-radius: 8px;
  box-shadow: 0 0 0 6px #d9f5d6;
}

.gi4-decimal-contents-row {
  display: flex;
  justify-content: space-around;
  align-items: end;
  gap: 8px;
}

.gi4-decimal-contents-prompt {
  font-weight: 800;
  color: #1f3f5f;
  margin: 0 0 8px;
  font-size: 14px;
}

.gi4-decimal-container-icon {
  width: 62px;
  height: 80px;
  border: 1px solid #9aa8b7;
  background: #e0f2fe;
  border-radius: 8px;
  display: grid;
  place-items: center;
  position: relative;
  font-weight: 900;
}

.gi4-decimal-container-icon.blik {
  background: #fecaca;
  border-radius: 14px;
}

.gi4-decimal-container-icon.melk {
  background: #dbeafe;
}

.gi4-decimal-container-icon.water {
  background: #ccfbf1;
}

.gi4-decimal-container-icon.beker {
  background: #bae6fd;
  border-radius: 8px 8px 18px 18px;
}

.gi4-decimal-container-icon.fles {
  background: #ddd6fe;
  border-radius: 20px 20px 8px 8px;
}

.gi4-decimal-container-icon.sap {
  background: #fed7aa;
}

.gi4-decimal-container-icon.kan {
  background: #dcfce7;
  border-radius: 10px 10px 14px 14px;
}

.gi4-decimal-container-icon.grotefles {
  width: 70px;
  background: #fde68a;
  border-radius: 22px 22px 8px 8px;
}

.gi4-decimal-container-icon small {
  position: absolute;
  bottom: -22px;
  width: 22px;
  height: 20px;
  border: 1px solid #cbd5e1;
  background: #fff;
  border-radius: 4px;
  display: grid;
  place-items: center;
}

.gi4-decimal-contents-answer {
  margin-top: 32px;
  text-align: center;
}

.gi4-decimal-mixed-intro,
.gi4-decimal-mixed-fill-card,
.gi4-decimal-mixed-strip-axis-card,
.gi4-decimal-mixed-connect-card,
.gi4-decimal-mixed-table-card,
.gi4-decimal-mixed-equivalent-card,
.gi4-decimal-place-card,
.gi4-decimal-write-card,
.gi4-decimal-mixed-order-intro,
.gi4-decimal-mixed-order-missing-card,
.gi4-decimal-mixed-order-jumps-card,
.gi4-decimal-mixed-order-greatest-card,
.gi4-decimal-mixed-order-compare-card {
  position: relative;
  border: 1.5px solid #c2c8d0;
  border-radius: 8px;
  padding: 12px;
  background: #fff;
  break-inside: avoid;
  page-break-inside: avoid;
}

.gi4-decimal-mixed-intro {
  border-color: #7cc34b;
  background: #f3fbdf;
}

.gi4-decimal-mixed-intro-grid,
.gi4-decimal-mixed-grid.fill {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.gi4-decimal-mixed-grid.connect {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.gi4-decimal-mixed-grid.stripAxis {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.gi4-decimal-mixed-grid.orderMissing,
.gi4-decimal-mixed-grid.orderJumps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.gi4-decimal-mixed-grid.orderCompare {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 22px;
}

.gi4-decimal-mixed-grid.orderGreatest {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.gi4-decimal-mixed-intro-card {
  background: #fff;
  border: 1.4px solid #9bd56d;
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  align-items: center;
}

.gi4-decimal-mixed-intro-card p {
  margin: 0;
  font-weight: 800;
  text-align: center;
}

.gi4-decimal-mixed-model {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 13px;
  min-height: 76px;
  flex-wrap: wrap;
}

.gi4-decimal-mixed-model.compact {
  min-height: 54px;
  gap: 9px;
}

.gi4-decimal-mixed-plates {
  display: grid;
  grid-template-columns: repeat(5, 78px);
  gap: 7px 10px;
  align-items: center;
  padding-bottom: 3px;
}

.gi4-decimal-mixed-model.compact .gi4-decimal-mixed-plates {
  grid-template-columns: repeat(5, 54px);
  gap: 4px 6px;
}

.gi4-decimal-mixed-cube-svg {
  width: 74px;
  height: 65px;
  flex: 0 0 auto;
  overflow: visible;
}

.gi4-decimal-mixed-plate-svg {
  width: 112px;
  height: 49px;
  flex: 0 0 auto;
  overflow: visible;
}

.gi4-decimal-mixed-rod-svg {
  width: 92px;
  height: 27px;
  flex: 0 0 auto;
  overflow: visible;
}

.gi4-decimal-mixed-cube-svg.compact {
  width: 50px;
  height: 44px;
}

.gi4-decimal-mixed-plate-svg.compact {
  width: 82px;
  height: 36px;
}

.gi4-decimal-mixed-rod-svg.compact {
  width: 66px;
  height: 20px;
}

.gi4-decimal-mixed-hundred-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.gi4-decimal-mixed-hundred-grid.place {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
}

.gi4-decimal-mixed-hundred-grid.table {
  grid-template-columns: 1fr;
}

.gi4-decimal-mixed-hundred-grid.stripTable {
  grid-template-columns: 1fr;
  gap: 10px;
}

.gi4-decimal-mixed-hundred-card,
.gi4-decimal-mixed-hundred-place-card {
  padding: 12px 14px 14px;
}

.gi4-decimal-mixed-hundred-model {
  display: grid;
  grid-template-columns: max-content max-content max-content;
  justify-content: center;
  align-items: end;
  gap: 24px;
  min-height: 112px;
}

.gi4-decimal-mixed-hundred-model .model-cubes,
.gi4-decimal-mixed-hundred-model .model-plates,
.gi4-decimal-mixed-hundred-model .model-rods {
  display: flex;
  align-items: end;
  justify-content: center;
  gap: 5px;
  flex-wrap: wrap;
}

.gi4-decimal-mixed-hundred-model .model-cubes {
  display: grid;
  grid-template-columns: repeat(2, max-content);
  align-items: end;
  justify-items: center;
  max-width: 175px;
}

.gi4-decimal-mixed-hundred-model .model-plates {
  max-width: 290px;
  align-content: end;
}

.gi4-decimal-mixed-hundred-model .model-rods {
  max-width: 150px;
  align-content: end;
}

.gi4-decimal-mixed-hundred-model .gi4-decimal-mixed-cube-svg.compact {
  width: 82px;
  height: 72px;
}

.gi4-decimal-mixed-hundred-model .gi4-decimal-mixed-plate-svg.compact {
  width: 128px;
  height: 56px;
}

.gi4-decimal-mixed-hundred-model .gi4-decimal-mixed-rod-svg.compact {
  width: 106px;
  height: 33px;
}

.gi4-decimal-mixed-hundred-text {
  display: grid;
  justify-items: center;
  gap: 8px;
  margin-top: 4px;
  font-weight: 700;
}

.gi4-decimal-mixed-hundred-text .equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.gi4-decimal-mixed-hundred-axis {
  width: min(100%, 720px);
  margin: 4px auto 12px;
}

.gi4-decimal-mixed-hundred-axis .axis {
  position: relative;
  height: 86px;
}

.gi4-decimal-mixed-hundred-axis .axis-line {
  position: absolute;
  left: 0;
  right: -12px;
  top: 42px;
  border-top: 1.4px solid #4b5563;
}

.gi4-decimal-mixed-hundred-axis .axis-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -4px;
  width: 8px;
  height: 8px;
  border-top: 1.4px solid #4b5563;
  border-right: 1.4px solid #4b5563;
  transform: rotate(45deg);
  background: #fff;
}

.gi4-decimal-mixed-hundred-axis .tick {
  position: absolute;
  top: 34px;
  height: 16px;
  border-left: 1px solid #4b5563;
}

.gi4-decimal-mixed-hundred-axis .tick.major {
  top: 26px;
  height: 25px;
  border-left-width: 1.6px;
}

.gi4-decimal-mixed-hundred-axis .label {
  position: absolute;
  top: 10px;
  transform: translateX(-50%);
  font-weight: 800;
  font-size: 13px;
}

.gi4-decimal-mixed-hundred-axis .marker {
  position: absolute;
  top: 25px;
  height: 29px;
  border-left: 2px solid #ef4444;
}

.gi4-decimal-mixed-hundred-axis .top-bracket {
  position: absolute;
  top: 20px;
  height: 9px;
  border-top: 1.6px solid #ef4444;
  border-left: 1.6px solid #ef4444;
  border-right: 1.6px solid #ef4444;
  box-sizing: border-box;
}

.gi4-decimal-mixed-hundred-axis .rulers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: min(100%, 640px);
  margin: -4px auto 0;
}

.gi4-decimal-mixed-hundred-axis .ruler {
  position: relative;
  height: 44px;
  border-bottom: 1.2px solid #8aa0ad;
}

.gi4-decimal-mixed-hundred-axis .ruler-bracket {
  position: absolute;
  top: 0;
  height: 12px;
  border-top: 1.6px solid #ef4444;
  border-left: 1.6px solid #ef4444;
  border-right: 1.6px solid #ef4444;
  box-sizing: border-box;
}

.gi4-decimal-mixed-hundred-axis .ruler-tick {
  position: absolute;
  bottom: 0;
  height: 8px;
  border-left: 1px solid #8aa0ad;
}

.gi4-decimal-mixed-hundred-axis .ruler-tick.major {
  height: 14px;
  border-left-color: #647887;
}

.gi4-decimal-mixed-hundred-axis .ruler-marker {
  position: absolute;
  bottom: 0;
  height: 21px;
  border-left: 2px solid #ef4444;
}

.gi4-decimal-place-board.hundredths {
  max-width: 330px;
}

.gi4-decimal-place-board .place.hundredths {
  background: #e5e7eb;
}

.gi4-decimal-place-board .place.hundredths strong {
  background: #ffe69a;
}

.place.hundredths .gi4-decimal-place-token {
  background: #ffe69a;
  font-size: 8px;
  min-width: 19px;
}

.gi4-decimal-place-counts {
  text-align: center;
  font-weight: 700;
  margin: -4px 0 8px;
}

.gi4-decimal-place-work.hundredths {
  min-height: 175px;
}

.gi4-decimal-mixed-hundred-table-card {
  padding: 10px 12px 14px;
}

.gi4-decimal-mixed-hundred-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-decimal-mixed-hundred-table th,
.gi4-decimal-mixed-hundred-table td {
  border: 1px solid #d1dbe3;
  text-align: center;
  vertical-align: middle;
  padding: 8px;
}

.gi4-decimal-mixed-hundred-table td:first-child {
  position: relative;
}

.gi4-decimal-mixed-hundred-table td:first-child .row-delete-btn {
  top: -9px;
  right: -9px;
}

.gi4-decimal-mixed-hundred-table th {
  background: #dcecc0;
  font-size: 16px;
  font-weight: 700;
}

.gi4-decimal-mixed-hundred-table th:first-child,
.gi4-decimal-mixed-hundred-table td:first-child {
  width: 52%;
}

.gi4-decimal-mixed-hundred-table-visual {
  display: grid;
  justify-items: center;
  gap: 6px;
}

.gi4-decimal-mixed-hundred-table-visual .gi4-decimal-mixed-hundred-model {
  transform: scale(.74);
  transform-origin: center bottom;
  min-height: 74px;
  margin: -10px 0 -8px;
  gap: 16px;
}

.gi4-decimal-mixed-hundred-table-visual .gi4-decimal-mixed-hundred-model .model-cubes {
  max-width: 150px;
}

.gi4-decimal-mixed-hundred-table-visual .gi4-decimal-mixed-hundred-model .model-plates {
  max-width: 165px;
}

.gi4-decimal-mixed-hundred-table-visual .gi4-decimal-mixed-hundred-model .model-rods {
  max-width: 140px;
}

.gi4-decimal-mixed-hundred-table-visual .visual-sum {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex-wrap: wrap;
  font-weight: 700;
}

.answer-pill {
  display: inline-grid;
  place-items: center;
  min-width: 32px;
  height: 28px;
  border: 1.2px solid #cbd5e1;
  border-radius: 6px;
  background: #fff;
}

.gi4-decimal-mixed-hundred-strip-card {
  padding: 10px 12px 12px;
}

.gi4-decimal-mixed-hundred-strip-card.example {
  background: #ffddb5;
  border-color: #fb923c;
}

.gi4-decimal-mixed-hundred-strip-card .strip-title {
  font-weight: 800;
  margin-bottom: 8px;
}

.gi4-decimal-mixed-hundred-strip {
  width: min(100%, 760px);
  margin: 0 auto 14px;
}

.gi4-decimal-mixed-hundred-strip .strip-labels {
  position: relative;
  height: 22px;
  font-size: 13px;
  font-weight: 700;
}

.gi4-decimal-mixed-hundred-strip .strip-labels span {
  position: absolute;
  transform: translateX(-50%);
}

.gi4-decimal-mixed-hundred-strip .strip-axis {
  position: relative;
  height: 30px;
  margin-top: -2px;
}

.gi4-decimal-mixed-hundred-strip .axis-line {
  position: absolute;
  left: 0;
  right: -11px;
  top: 0;
  border-top: 1.4px solid #333;
}

.gi4-decimal-mixed-hundred-strip .axis-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -4px;
  width: 8px;
  height: 8px;
  border-top: 1.4px solid #333;
  border-right: 1.4px solid #333;
  transform: rotate(45deg);
  background: #fff;
}

.gi4-decimal-mixed-hundred-strip .tick {
  position: absolute;
  top: -8px;
  height: 18px;
  border-left: 1px solid #333;
  z-index: 2;
}

.gi4-decimal-mixed-hundred-strip .tick.major {
  top: -14px;
  height: 26px;
  border-left-width: 1.5px;
}

.gi4-decimal-mixed-hundred-strip .strip-fill {
  position: relative;
  height: 12px;
  background: #87cfdf;
  border: 1px solid #5b8fa1;
  z-index: 1;
  overflow: hidden;
}

.solutions-mode .gi4-decimal-mixed-hundred-strip .strip-fill.solution-fill {
  background: #87cfdf;
}

.gi4-decimal-mixed-hundred-strip .strip-marker {
  position: absolute;
  top: -24px;
  height: 33px;
  border-left: 2px solid #ef4444;
  z-index: 3;
}

.gi4-decimal-mixed-hundred-strip .strip-marker::before {
  content: "";
  position: absolute;
  left: -23px;
  top: -12px;
  width: 44px;
  height: 38px;
  border: 3px solid #222;
  border-radius: 50%;
  background: rgba(255,255,255,.72);
}

.gi4-decimal-mixed-hundred-strip .strip-marker::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 23px;
  width: 3px;
  height: 28px;
  background: #222;
  transform: rotate(-13deg);
  transform-origin: top center;
}

.gi4-decimal-mixed-hundred-strip .lens-detail {
  position: absolute;
  left: -19px;
  top: -4px;
  width: 38px;
  height: 18px;
  z-index: 5;
  overflow: hidden;
  pointer-events: none;
  border: 1px solid #777;
  background: rgba(255,255,255,.82);
}

.gi4-decimal-mixed-hundred-strip .lens-fill {
  position: absolute;
  left: 0;
  top: 5px;
  height: 8px;
  background: #87cfdf;
  opacity: .35;
}

.gi4-decimal-mixed-hundred-strip .lens-cell {
  position: absolute;
  top: 5px;
  width: 10%;
  height: 8px;
  box-sizing: border-box;
  border-left: 1px solid #555;
}

.gi4-decimal-mixed-hundred-strip .lens-cell.filled {
  background: #87cfdf;
}

.gi4-decimal-mixed-hundred-strip .lens-tick {
  position: absolute;
  top: 3px;
  height: 13px;
  border-left: 1px solid #222;
}

.gi4-decimal-mixed-hundred-strip .lens-tick.red {
  top: 1px;
  height: 16px;
  border-left: 2px solid #ef4444;
}

.gi4-decimal-write-list.hundredths {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 34px;
}

.gi4-decimal-write-group-line {
  grid-column: 1 / -1;
  border-top: 1.4px solid #7da7b8;
  height: 1px;
  margin: 2px 0 0;
}

.gi4-decimal-write-separator {
  height: 1px;
  border-top: 1.4px solid #7da7b8;
  margin: 14px 0;
}

.gi4-decimal-hundred-write-card {
  padding: 14px 16px 16px;
}

.gi4-decimal-hundred-value-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
}

.gi4-decimal-hundred-value-card {
  min-height: 300px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
  padding: 12px 14px;
}

.gi4-decimal-hundred-value-card.example {
  background: #ffddb5;
  border-color: #fb923c;
}

.gi4-decimal-hundred-value-svg {
  width: 100%;
  height: 275px;
  display: block;
}

.gi4-decimal-thousand-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-thousand-card {
  padding: 14px 16px 16px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-thousand-material-exercise {
  border-bottom: 2px solid #7ca6b4;
  padding-bottom: 14px;
  margin-bottom: 16px;
}

.gi4-decimal-thousand-material-exercise .gi4-decimal-thousand-model {
  grid-template-columns: minmax(110px, max-content) minmax(250px, max-content) minmax(220px, max-content) minmax(120px, max-content);
  gap: 34px;
  justify-content: space-around;
  align-items: end;
  margin-bottom: 26px;
}

.gi4-decimal-thousand-material-exercise .model-plates,
.gi4-decimal-thousand-material-exercise .model-rods,
.gi4-decimal-thousand-material-exercise .model-minis {
  align-content: end;
}

.gi4-decimal-thousand-material-fractions {
  display: grid;
  grid-template-columns: minmax(110px, max-content) minmax(250px, max-content) minmax(220px, max-content) minmax(120px, max-content);
  justify-content: space-around;
  align-items: start;
  gap: 34px;
  margin: 8px 0 24px;
  text-align: center;
}

.gi4-decimal-thousand-material-fractions > .gi4-line {
  margin-top: 22px;
  justify-self: center;
}

.gi4-decimal-thousand-fraction-prompt {
  display: grid;
  place-items: center;
  min-height: 76px;
}

.gi4-decimal-thousand-fraction-prompt .gi4-fraction-box {
  transform: scale(1.08);
  grid-template-rows: 34px 10px 34px;
  width: 54px;
  margin: 0 10px;
}

.gi4-decimal-thousand-fraction-prompt .gi4-fraction-cell {
  min-height: 34px;
}

.gi4-decimal-thousand-fraction-prompt .gi4-fraction-stroke {
  width: 52px;
}

.gi4-decimal-thousand-material-text {
  display: grid;
  gap: 18px;
  font-size: 18px;
  line-height: 1.35;
}

.gi4-decimal-thousand-material-text .equation {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.gi4-decimal-thousand-material-text .equation .gi4-fraction-box {
  grid-template-rows: 32px 10px 32px;
  width: 58px;
  margin: 0 10px;
}

.gi4-decimal-thousand-material-text .equation .gi4-fraction-cell {
  min-height: 32px;
}

.gi4-decimal-thousand-material-text .equation .gi4-fraction-stroke {
  width: 56px;
}

.gi4-decimal-thousand-model {
  display: grid;
  grid-template-columns: max-content max-content max-content max-content;
  align-items: end;
  justify-content: center;
  gap: 22px;
  min-height: 118px;
  margin-bottom: 8px;
}

.gi4-decimal-thousand-model .model-cubes {
  display: grid;
  grid-template-columns: repeat(2, max-content);
  gap: 4px;
}

.gi4-decimal-thousand-model .model-plates,
.gi4-decimal-thousand-model .model-rods,
.gi4-decimal-thousand-model .model-minis {
  display: flex;
  align-items: end;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
}

.gi4-decimal-thousand-model .model-plates {
  max-width: 310px;
}

.gi4-decimal-thousand-model .model-rods {
  max-width: 220px;
}

.gi4-decimal-thousand-model .model-minis {
  max-width: 90px;
  align-content: end;
}

.gi4-decimal-thousand-model .gi4-decimal-mixed-cube-svg.compact {
  width: 86px;
  height: 76px;
}

.gi4-decimal-thousand-model .gi4-decimal-mixed-plate-svg.compact {
  width: 128px;
  height: 56px;
}

.gi4-decimal-thousand-model .gi4-decimal-mixed-rod-svg.compact {
  width: 106px;
  height: 33px;
}

.gi4-decimal-thousand-mini-cube {
  width: 24px;
  height: 24px;
  display: inline-block;
}

.gi4-decimal-unit-cube-svg.compact {
  width: 24px;
  height: 24px;
}

.gi4-decimal-thousand-text {
  display: grid;
  justify-items: center;
  gap: 8px;
  font-weight: 700;
  margin: 6px 0 12px;
}

.gi4-decimal-thousand-text .equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.gi4-decimal-thousand-axis {
  width: min(100%, 760px);
  margin: 12px auto 16px;
}

.gi4-decimal-thousand-axis .axis-labels {
  position: relative;
  height: 22px;
  margin: 0 24px;
}

.gi4-decimal-thousand-axis .axis-labels span {
  position: absolute;
  transform: translateX(-50%);
  font-weight: 800;
  font-size: 13px;
}

.gi4-decimal-thousand-axis .axis {
  position: relative;
  height: 40px;
  margin: 0 24px;
  border-top: 1.4px solid #4b5563;
}

.gi4-decimal-thousand-axis .axis::after {
  content: "";
  position: absolute;
  right: -12px;
  top: -6px;
  width: 10px;
  height: 10px;
  border-top: 1.4px solid #4b5563;
  border-right: 1.4px solid #4b5563;
  transform: rotate(45deg);
  background: #fff;
}

.gi4-decimal-thousand-axis .tick {
  position: absolute;
  top: -1px;
  height: 16px;
  border-left: 1px solid #4b5563;
}

.gi4-decimal-thousand-axis .tick.major {
  height: 24px;
  border-left-width: 1.5px;
}

.gi4-decimal-thousand-axis .fill {
  position: absolute;
  left: 0;
  top: 0;
  height: 14px;
  background: rgba(99, 198, 218, .75);
}

.gi4-decimal-thousand-axis .marker {
  position: absolute;
  top: -10px;
  height: 30px;
  border-left: 2px solid #ef4444;
}

.gi4-decimal-thousand-place-wrap {
  display: grid;
  grid-template-columns: minmax(270px, 390px) minmax(280px, 420px);
  justify-content: center;
  align-items: start;
  gap: 16px 24px;
  margin-top: 10px;
  border-top: 2px solid #7ca6b4;
  padding-top: 16px;
}

.gi4-decimal-thousand-place-work {
  width: 440px;
  max-width: 100%;
  min-height: 300px;
}

.gi4-decimal-thousand-value-svg {
  display: block;
  width: 440px;
  max-width: 100%;
  height: 300px;
}

.gi4-decimal-thousand-value-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.gi4-decimal-thousand-value-card {
  min-height: 330px;
  padding: 12px 14px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-thousand-card.amount {
  display: grid;
  gap: 18px;
}

.gi4-decimal-thousand-amount-material {
  display: grid;
  gap: 16px;
  border-bottom: 2px solid #7ca6b4;
  padding-bottom: 18px;
}

.gi4-decimal-thousand-amount-material .amount-model {
  grid-template-columns: minmax(150px, max-content) minmax(300px, max-content) minmax(250px, max-content) minmax(120px, max-content);
  justify-content: space-around;
  gap: 28px;
  min-height: 250px;
  margin: 0;
}

.gi4-decimal-thousand-amount-material .amount-model .model-cubes {
  grid-template-columns: 1fr;
  gap: 2px;
}

.gi4-decimal-thousand-amount-material .amount-model .model-plates,
.gi4-decimal-thousand-amount-material .amount-model .model-rods,
.gi4-decimal-thousand-amount-material .amount-model .model-minis {
  align-content: center;
}

.gi4-decimal-thousand-amount-material .amount-model .model-plates {
  width: 310px;
}

.gi4-decimal-thousand-amount-material .amount-model .model-rods {
  width: 250px;
}

.gi4-decimal-thousand-amount-work {
  display: grid;
  grid-template-columns: minmax(150px, max-content) minmax(300px, max-content) minmax(250px, max-content) minmax(120px, max-content);
  justify-content: space-around;
  align-items: start;
  gap: 28px;
  text-align: center;
  font-size: 20px;
}

.gi4-decimal-thousand-amount-work .amount-part {
  min-height: 82px;
}

.gi4-decimal-thousand-amount-work .amount-part.whole {
  line-height: 1.8;
}

.gi4-decimal-thousand-card.amount .gi4-line {
  position: relative;
  height: 28px;
  line-height: 28px;
}

.gi4-decimal-thousand-card.amount .gi4-line .gi4-solution-answer {
  position: relative;
  top: -3px;
  display: none;
  padding: 0 5px;
  background: #fff;
}

.solutions-mode .gi4-decimal-thousand-card.amount .gi4-line .gi4-solution-answer {
  display: inline-block;
}

.gi4-decimal-thousand-amount-work .gi4-fraction-box,
.gi4-decimal-thousand-amount-total .gi4-fraction-box {
  grid-template-rows: 30px 8px 30px;
  width: 58px;
  margin: 0 8px;
}

.gi4-decimal-thousand-amount-work .gi4-fraction-stroke,
.gi4-decimal-thousand-amount-total .gi4-fraction-stroke {
  width: 56px;
}

.gi4-decimal-thousand-amount-total {
  justify-self: center;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
  padding: 16px 30px;
  border: 2px solid #a8adb5;
  border-radius: 14px;
  font-size: 20px;
  line-height: 1.35;
}

.gi4-decimal-thousand-place-mini-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 18px;
}

.gi4-decimal-thousand-place-mini + .gi4-decimal-thousand-place-mini {
  border-left: 2px solid #7ca6b4;
  padding-left: 18px;
}

.gi4-decimal-thousand-place-mini {
  display: grid;
  gap: 16px;
  align-content: start;
}

.gi4-decimal-place-board.thousandths.mini {
  width: 100%;
  max-width: none;
  margin: 0;
}

.gi4-decimal-place-board.thousandths.mini .place {
  min-height: 86px;
  padding: 0 6px 8px;
}

.gi4-decimal-place-board.thousandths.mini .place strong {
  font-size: 22px;
  padding: 5px 0;
}

.gi4-decimal-place-board.thousandths.mini .gi4-decimal-place-token.dot-token {
  min-width: 16px;
  width: 16px;
  height: 16px;
  margin: 3px;
  font-size: 0;
}

.gi4-decimal-thousand-place-mini-counts {
  font-size: 20px;
  line-height: 1.9;
}

.gi4-decimal-thousand-place-mini-counts .gi4-line {
  min-width: 62px;
  margin: 0 6px;
}

.gi4-decimal-thousand-place-mini-answer {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
}

.gi4-decimal-thousand-place-mini-answer strong {
  font-weight: 900;
}

.gi4-decimal-thousand-place-mini-answer .gi4-line.boxed {
  min-width: 112px;
  height: 54px;
  border: 2px solid #a8adb5;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
}

.gi4-decimal-thousand-axis-mixed-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-thousand-axis-mixed-card {
  padding: 16px 18px 18px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-thousand-axis-mixed-title {
  margin: 2px 0 18px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
}

.gi4-decimal-thousand-axis-overview {
  position: relative;
  height: 58px;
  margin: 0 10px 18px;
  border-bottom: 2px solid #333;
}

.gi4-decimal-thousand-axis-overview .axis-fill {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 18px;
  background: rgba(100, 200, 224, .82);
}

.gi4-decimal-thousand-axis-overview .axis-marker {
  position: absolute;
  bottom: -6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ef4444;
  transform: translateX(-50%);
  z-index: 3;
}

.gi4-decimal-thousand-axis-overview .tick {
  position: absolute;
  bottom: 0;
  height: 24px;
  border-left: 1.4px solid #333;
}

.gi4-decimal-thousand-axis-overview .tick.major {
  height: 32px;
  border-left-width: 2px;
}

.gi4-decimal-thousand-axis-overview b {
  position: absolute;
  bottom: -32px;
  transform: translateX(-50%);
  font-size: 18px;
  font-weight: 500;
}

.gi4-decimal-thousand-axis-zoom-wrap {
  position: relative;
  margin: 22px 10px 26px;
  padding-top: 104px;
}

.gi4-decimal-thousand-axis-zoom-wrap .axis-zoom-connectors {
  position: absolute;
  left: 0;
  right: 0;
  top: -22px;
  width: 100%;
  height: 126px;
  overflow: visible;
  pointer-events: none;
}

.gi4-decimal-thousand-axis-zoom-wrap .axis-zoom-connectors line {
  stroke: #ff8a1f !important;
  stroke-width: 1.8 !important;
  vector-effect: non-scaling-stroke;
}

.gi4-decimal-thousand-axis-zoom {
  position: relative;
  height: 104px;
  display: grid;
  grid-template-columns: repeat(100, 1fr);
  grid-template-rows: repeat(10, 1fr);
  border: 2px solid #ef4444;
  background: #fff;
  box-sizing: border-box;
}

.gi4-decimal-thousand-axis-zoom .zoom-cell {
  border-right: 1px solid rgba(17, 24, 39, .55);
  border-bottom: 1px solid rgba(17, 24, 39, .55);
  min-width: 0;
  min-height: 0;
}

.gi4-decimal-thousand-axis-zoom .zoom-cell.filled {
  background: rgba(100, 200, 224, .82);
}

.gi4-decimal-thousand-axis-zoom .zoom-cell.tenth-boundary {
  border-right: 2px solid #111827;
}

.gi4-decimal-thousand-axis-zoom .zoom-marker {
  position: absolute;
  top: -118px;
  width: 30px;
  height: 30px;
  border: 4px solid #333;
  border-radius: 50%;
  background: #fff;
  transform: translateX(-50%);
}

.gi4-decimal-thousand-axis-zoom .zoom-marker::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 23px;
  width: 4px;
  height: 26px;
  background: #333;
  transform: rotate(-13deg);
  transform-origin: top center;
}

.gi4-decimal-thousand-axis-zoom b {
  position: absolute;
  bottom: -34px;
  font-size: 18px;
  font-weight: 500;
}

.gi4-decimal-thousand-axis-zoom b.start {
  left: 0;
  transform: translateX(-4px);
}

.gi4-decimal-thousand-axis-zoom b.end {
  right: 0;
  transform: translateX(4px);
}

.gi4-decimal-thousand-axis-result {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  margin-top: 44px;
  font-size: 19px;
}

.gi4-decimal-thousand-axis-result th,
.gi4-decimal-thousand-axis-result td {
  border: 1.4px solid #c4d2d9;
  text-align: center;
  vertical-align: middle;
  padding: 12px 8px;
}

.gi4-decimal-thousand-axis-result th {
  background: #dcecc0;
  font-weight: 500;
  font-size: 20px;
}

.gi4-decimal-thousand-axis-result td {
  height: 74px;
}

.gi4-decimal-thousand-axis-result .gi4-fraction-box {
  grid-template-rows: 30px 8px 30px;
  width: 54px;
  margin: 0 5px;
}

.gi4-decimal-thousand-axis-result .gi4-fraction-stroke {
  width: 52px;
}

.gi4-decimal-thousand-axis-result .gi4-line .gi4-solution-answer {
  position: relative;
  top: -3px;
  padding: 0 5px;
  background: #fff;
}

.gi4-decimal-thousand-write-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-thousand-write-card {
  padding: 16px 18px 18px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-thousand-write-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(205px, 1fr));
  gap: 24px 28px;
  align-items: end;
  font-size: 20px;
}

.gi4-decimal-thousand-write-row {
  min-height: 42px;
  display: flex;
  align-items: end;
  gap: 8px;
  flex-wrap: nowrap;
}

.gi4-decimal-thousand-write-row:nth-child(n+7) {
  grid-column: 1 / -1;
}

.gi4-decimal-thousand-write-row .gi4-fraction-box {
  grid-template-rows: 26px 7px 26px;
  width: 56px;
  margin: 0 2px;
  flex: 0 0 auto;
}

.gi4-decimal-thousand-write-row .gi4-fraction-stroke {
  width: 54px;
}

.gi4-decimal-thousand-write-row .gi4-line.long {
  min-width: 118px;
  flex: 0 0 118px;
}

.gi4-decimal-thousand-digit-value-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 18px;
}

.gi4-decimal-thousand-digit-value-card {
  position: relative;
  min-height: 330px;
  padding: 14px 18px 18px;
  border: 2px solid #a8adb5;
  border-radius: 14px;
  background: #fff;
}

.gi4-decimal-thousand-digit-value-card .row-delete-btn {
  top: -10px;
  right: -10px;
}

.gi4-decimal-thousand-digit-value-svg {
  display: block;
  width: 420px;
  max-width: 100%;
  height: 300px;
  margin: 0 auto;
}

.gi4-decimal-thousand-equivalent-color-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-thousand-equivalent-color-card {
  padding: 14px 16px 16px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-thousand-equivalent-color-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 19px;
}

.gi4-decimal-thousand-equivalent-color-table td {
  height: 85px;
  border: 1.4px solid #c4d2d9;
  text-align: center;
  vertical-align: middle;
  padding: 4px 6px;
  line-height: 1;
}

.gi4-decimal-thousand-equivalent-color-table .gi4-fraction-box {
  grid-template-rows: 22px 5px 22px;
  width: 42px;
  margin: 0 2px;
}

.gi4-decimal-thousand-equivalent-color-table .gi4-fraction-stroke {
  width: 40px;
}

.gi4-decimal-thousand-equivalent-color-table .gi4-mixed-number {
  gap: 3px;
  white-space: nowrap;
}

.gi4-decimal-thousand-equivalent-color-table .inline-sum {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1px;
  white-space: nowrap;
  font-size: 16px;
}

.gi4-decimal-thousand-equivalent-color-table .inline-sum .gi4-fraction-box {
  grid-template-rows: 16px 4px 16px;
  width: 27px;
  margin: 0;
}

.gi4-decimal-thousand-equivalent-color-table .inline-sum .gi4-fraction-cell {
  min-height: 16px;
  border-radius: 5px;
}

.gi4-decimal-thousand-equivalent-color-table .inline-sum .gi4-fraction-stroke {
  width: 25px;
}

.solutions-mode .gi4-decimal-thousand-equivalent-color-table .solution-group-0 { background: #d7ecff; }
.solutions-mode .gi4-decimal-thousand-equivalent-color-table .solution-group-1 { background: #fff2b8; }
.solutions-mode .gi4-decimal-thousand-equivalent-color-table .solution-group-2 { background: #ffdce8; }
.solutions-mode .gi4-decimal-thousand-equivalent-color-table .solution-group-3 { background: #d9f5d6; }
.solutions-mode .gi4-decimal-thousand-equivalent-color-table .solution-group-4 { background: #efe2ff; }
.solutions-mode .gi4-decimal-thousand-equivalent-color-table .solution-group-5 { background: #ffe4c4; }
.solutions-mode .gi4-decimal-thousand-equivalent-color-table .solution-group-6 { background: #ccfbf1; }

.gi4-decimal-thousand-estimate-order-grid,
.gi4-decimal-thousand-round-grid,
.gi4-decimal-thousand-axis-fill-grid,
.gi4-decimal-thousand-step-grid,
.gi4-decimal-thousand-compare-grid,
.gi4-decimal-thousand-greatest-grid {
  display: grid;
  gap: 14px;
}

.gi4-decimal-thousand-estimate-order-card,
.gi4-decimal-thousand-round-card,
.gi4-decimal-thousand-axis-fill-card,
.gi4-decimal-thousand-step-card,
.gi4-decimal-thousand-compare-card,
.gi4-decimal-thousand-greatest-card {
  padding: 16px 18px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
}

.gi4-decimal-thousand-estimate-order-card .estimate-axis {
  position: relative;
  height: 82px;
  margin: 20px 42px 18px;
  border-bottom: 2px solid #333;
}

.gi4-decimal-thousand-estimate-order-card .estimate-axis::after,
.gi4-decimal-thousand-simple-axis .axis::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -6px;
  width: 12px;
  height: 12px;
  border-right: 2px solid #333;
  border-top: 2px solid #333;
  transform: rotate(45deg);
}

.gi4-decimal-thousand-estimate-order-card .estimate-axis > span,
.gi4-decimal-thousand-simple-axis .axis > span {
  position: absolute;
  bottom: 0;
  height: 16px;
  border-left: 1.5px solid #333;
}

.gi4-decimal-thousand-estimate-order-card .estimate-axis > span.major,
.gi4-decimal-thousand-simple-axis .axis > span.major {
  height: 28px;
}

.gi4-decimal-thousand-estimate-order-card .estimate-axis > b,
.gi4-decimal-thousand-simple-axis .axis > b {
  position: absolute;
  bottom: -32px;
  transform: translateX(-50%);
  font-size: 16px;
  font-weight: 500;
}

.gi4-decimal-thousand-estimate-order-card .estimate-chips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
  gap: 16px;
  width: calc(100% - 84px);
  margin: 76px auto 18px;
}

.gi4-decimal-thousand-estimate-order-card .estimate-solution-connectors {
  display: none;
  position: absolute;
  left: 42px;
  right: 42px;
  top: 116px;
  height: 148px;
  width: auto;
  overflow: visible;
  pointer-events: none;
}

.gi4-decimal-thousand-estimate-order-card .estimate-solution-connectors line {
  stroke: #ff7a1a;
  stroke-width: 1.3;
  vector-effect: non-scaling-stroke;
}

.solutions-mode .gi4-decimal-thousand-estimate-order-card .estimate-solution-connectors {
  display: block;
}

.gi4-decimal-thousand-estimate-order-card .estimate-chip {
  position: relative;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 42px;
  border: 1.6px solid #b6bcc4;
  border-radius: 8px;
  font-size: 18px;
  background: #fff;
}

.gi4-decimal-thousand-estimate-order-card .estimate-chip i {
  position: absolute;
  top: -10px;
  left: 50%;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #222;
  transform: translateX(-50%);
}

.gi4-decimal-thousand-estimate-order-card .estimate-order-line {
  margin: 0;
  font-size: 17px;
}

.gi4-decimal-thousand-estimate-order-card .gi4-line.wide {
  min-width: 520px;
}

.gi4-decimal-thousand-round-card table {
  width: min(760px, 100%);
  margin: 0 auto 18px;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-decimal-thousand-round-card th,
.gi4-decimal-thousand-round-card td {
  border: 1.4px solid #cbd5e1;
  text-align: center;
  padding: 10px;
  height: 48px;
}

.gi4-decimal-thousand-round-card thead th {
  background: #dbeec0;
  font-weight: 700;
}

.gi4-decimal-thousand-round-card tbody th {
  width: 120px;
  background: #eef7df;
  font-weight: 500;
}

.gi4-decimal-thousand-round-card .round-list {
  display: grid;
  gap: 10px;
  font-size: 17px;
}

.gi4-decimal-thousand-round-card .round-list p {
  margin: 0;
}

.gi4-decimal-thousand-simple-axis {
  padding: 12px 14px 26px;
}

.gi4-decimal-thousand-simple-axis .axis {
  position: relative;
  height: 70px;
  margin: 0 28px 16px;
  border-bottom: 2px solid #333;
}

.gi4-decimal-thousand-simple-axis .axis > b .gi4-line.tiny {
  min-width: 70px;
}

.gi4-decimal-thousand-step-card {
  display: grid;
  gap: 18px;
}

.gi4-decimal-thousand-step-card .step-group {
  display: grid;
  gap: 8px;
}

.gi4-decimal-thousand-step-card .step-group strong {
  justify-self: start;
  padding: 9px 14px;
  border: 1.6px solid #8dcc37;
  border-radius: 9px;
  background: #e5f5c7;
  font-weight: 500;
}

.gi4-decimal-thousand-step-card .step-cells {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(74px, 1fr));
  border: 1.2px solid #cbd5e1;
}

.gi4-decimal-thousand-step-card .step-cells > span {
  min-height: 42px;
  display: grid;
  place-items: center;
  border-left: 1.2px solid #cbd5e1;
  font-size: 17px;
}

.gi4-decimal-thousand-step-card .step-cells > span:first-child {
  border-left: 0;
}

.gi4-decimal-thousand-compare-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px 34px;
}

.gi4-decimal-thousand-compare-card .compare-row {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 54px;
  font-size: 18px;
}

.gi4-thousand-inline-frac,
.gi4-thousand-inline-mixed {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.gi4-thousand-inline-frac .gi4-fraction-box,
.gi4-thousand-inline-mixed .gi4-fraction-box,
.gi4-decimal-thousand-compare-card .gi4-fraction-box,
.gi4-decimal-thousand-greatest-card .gi4-fraction-box {
  grid-template-rows: 22px 5px 22px;
  width: 48px;
  margin: 0;
}

.gi4-thousand-inline-frac .gi4-fraction-stroke,
.gi4-thousand-inline-mixed .gi4-fraction-stroke,
.gi4-decimal-thousand-compare-card .gi4-fraction-stroke,
.gi4-decimal-thousand-greatest-card .gi4-fraction-stroke {
  width: 44px;
}

.gi4-decimal-thousand-greatest-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 28px;
}

.gi4-decimal-thousand-greatest-card .greatest-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1.2px solid #cbd5e1;
}

.gi4-decimal-thousand-greatest-card .greatest-row > span {
  min-height: 62px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-left: 1.2px solid #cbd5e1;
  font-size: 17px;
}

.gi4-decimal-thousand-greatest-card .greatest-row > span:first-child {
  border-left: 0;
}

.solutions-mode .gi4-decimal-thousand-greatest-card .solution-greatest {
  background: #dbeafe;
}

@media (max-width: 900px) {
  .gi4-decimal-thousand-compare-card,
  .gi4-decimal-thousand-greatest-card {
    grid-template-columns: 1fr;
  }

  .gi4-decimal-thousand-estimate-order-card .gi4-line.wide {
    min-width: 260px;
  }
}

.gi4-decimal-thousand-zoom {
  width: min(100%, 760px);
  margin: 12px auto 16px;
}

.gi4-decimal-thousand-zoom-exercise {
  border-bottom: 2px solid #7ca6b4;
  padding: 6px 0 16px;
  margin-bottom: 16px;
}

.gi4-decimal-thousand-zoom-exercise .zoom-strip {
  width: 100%;
  height: 104px;
  display: grid;
  grid-template-columns: repeat(100, 1fr);
  grid-template-rows: repeat(10, 1fr);
  border: 2px solid #ef4444;
  background: #fff;
  box-sizing: border-box;
}

.gi4-decimal-thousand-zoom-exercise .zoom-cell {
  border-right: 1px solid rgba(17, 24, 39, .55);
  border-bottom: 1px solid rgba(17, 24, 39, .55);
  min-width: 0;
  min-height: 0;
}

.gi4-decimal-thousand-zoom-exercise .zoom-cell.filled {
  background: rgba(100, 200, 224, .82);
}

.gi4-decimal-thousand-zoom-exercise .zoom-cell.tenth-boundary {
  border-right: 2px solid #111827;
}

.gi4-decimal-thousand-zoom-exercise .zoom-main-axis,
.gi4-decimal-thousand-zoom-exercise .zoom-detail {
  position: relative;
  height: 58px;
  border-bottom: 2px solid #333;
  z-index: 2;
}

.gi4-decimal-thousand-zoom-exercise .zoom-main-axis {
  margin-bottom: 0;
}

.gi4-decimal-thousand-zoom-exercise .zoom-window {
  position: relative;
}

.gi4-decimal-thousand-zoom-exercise .zoom-connectors {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  margin: 0;
  z-index: 1;
}

.gi4-decimal-thousand-zoom-exercise .zoom-connectors line {
  stroke: #ff8a1f !important;
  stroke-width: 1.9 !important;
  vector-effect: non-scaling-stroke;
}

.gi4-decimal-thousand-zoom-exercise .tick {
  position: absolute;
  bottom: 0;
  height: 20px;
  border-left: 1px solid #8a8f97;
}

.gi4-decimal-thousand-zoom-exercise .tick.major {
  height: 38px;
  border-left: 2px solid #333;
}

.gi4-decimal-thousand-zoom-exercise b {
  position: absolute;
  bottom: -34px;
  transform: translateX(-50%);
  font-size: 16px;
  font-weight: 500;
  z-index: 2;
  padding: 0 3px;
  background: #fff;
}

.gi4-decimal-thousand-zoom-exercise .zoom-detail .marker {
  position: absolute;
  bottom: -2px;
  height: 18px;
  border-left: 8px solid #ef4444;
  border-radius: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.gi4-decimal-thousand-zoom-exercise .zoom-detail {
  margin-top: 62px;
}

.gi4-decimal-thousand-zoom-text {
  display: grid;
  gap: 14px;
  margin-top: 42px;
  font-size: 18px;
  line-height: 1.35;
}

.gi4-decimal-thousand-zoom .strip {
  position: relative;
  height: 34px;
  border: 1px solid #93a5b2;
  background: linear-gradient(90deg, rgba(99, 198, 218, .75) 0 var(--filled), transparent var(--filled) 100%), repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), #6b7280 calc(10% - 1px) 10%);
}

.gi4-decimal-thousand-zoom .strip .tick {
  position: absolute;
  bottom: -10px;
  height: 10px;
  border-left: 1px solid #4b5563;
}

.gi4-decimal-thousand-zoom .strip .tick.major {
  height: 15px;
}

.gi4-decimal-thousand-zoom .marker {
  position: absolute;
  top: -7px;
  height: 48px;
  border-left: 2px solid #ef4444;
}

.gi4-decimal-thousand-zoom .ruler {
  position: relative;
  height: 48px;
  margin-top: 24px;
  border-top: 1.2px solid #8aa0ad;
}

.gi4-decimal-thousand-zoom .ruler .tick {
  position: absolute;
  top: 0;
  height: 10px;
  border-left: 1px solid #8aa0ad;
}

.gi4-decimal-thousand-zoom .ruler .tick.major {
  height: 16px;
  border-left-color: #4b5563;
}

.gi4-decimal-thousand-zoom .ruler .label {
  position: absolute;
  top: 20px;
  transform: translateX(-50%);
  font-size: 12px;
}

.gi4-decimal-mixed-hundred-strip-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-decimal-mixed-hundred-strip-table th,
.gi4-decimal-mixed-hundred-strip-table td {
  border: 1px solid #d1dbe3;
  text-align: center;
  vertical-align: middle;
  padding: 8px;
}

.gi4-decimal-mixed-hundred-strip-table th {
  background: #dcecc0;
  font-weight: 700;
}

.gi4-decimal-mixed-hundred-strip-table td {
  min-height: 44px;
}

.gi4-decimal-mixed-model.strips {
  min-height: 0;
  align-items: center;
}

.gi4-decimal-mixed-strip-full,
.gi4-decimal-mixed-strip-part {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  width: 132px;
  height: 18px;
  border: 1.2px solid #819aa7;
}

.gi4-decimal-mixed-strip-full {
  background: repeating-linear-gradient(90deg, #acd59c 0 12px, #789b71 12px 13px);
}

.gi4-decimal-mixed-strip-part i {
  border-right: 1px solid #819aa7;
  background: #fff;
}

.gi4-decimal-mixed-strip-part i.filled {
  background: #acd59c;
}

.gi4-decimal-mixed-scale {
  width: min(100%, 520px);
  margin: 0 auto;
}

.gi4-decimal-mixed-scale-strips {
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  height: 20px;
  border: 1.2px solid #8aa0ad;
  background: #fff;
}

.gi4-decimal-mixed-scale-strips span {
  border-right: 1px solid #8aa0ad;
}

.gi4-decimal-mixed-scale-strips span.start {
  border-left: 1.4px solid #647887;
}

.gi4-decimal-mixed-scale-strips span.filled {
  background: #acd59c;
}

.gi4-decimal-mixed-scale-axis {
  position: relative;
  height: 46px;
  margin-top: 6px;
}

.gi4-decimal-mixed-scale-line {
  position: absolute;
  left: 0;
  right: -12px;
  top: 23px;
  border-top: 1.4px solid #4b5563;
}

.gi4-decimal-mixed-scale-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -4px;
  width: 8px;
  height: 8px;
  border-top: 1.4px solid #4b5563;
  border-right: 1.4px solid #4b5563;
  transform: rotate(45deg);
  background: #fff;
}

.gi4-decimal-mixed-scale-axis .tick {
  position: absolute;
  top: 15px;
  height: 16px;
  border-left: 1px solid #4b5563;
}

.gi4-decimal-mixed-scale-axis .tick.major {
  top: 9px;
  height: 22px;
  border-left-width: 1.5px;
}

.gi4-decimal-mixed-scale-axis .label {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  font-weight: 800;
  font-size: 12px;
}

.gi4-decimal-mixed-scale-axis .marker {
  position: absolute;
  top: 8px;
  height: 25px;
  border-left: 2px solid #0ea5e9;
}

.gi4-decimal-mixed-fill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.gi4-decimal-mixed-strip-axis-card {
  padding: 10px 12px;
}

.gi4-decimal-mixed-strip-axis-card.example {
  background: #ffddb5;
  border-color: #fb923c;
}

.gi4-decimal-mixed-strip-axis-card .gi4-decimal-mixed-scale {
  width: min(100%, 680px);
}

.gi4-decimal-mixed-equation-box {
  width: 250px;
  min-height: 48px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
  margin: -10px 34px 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  flex-wrap: wrap;
}

.solutions-mode .gi4-decimal-mixed-scale-strips span.solution-fill {
  background: #8fc1df;
}

.gi4-decimal-mixed-sentence,
.gi4-decimal-mixed-equation {
  font-weight: 700;
  text-align: center;
}

.gi4-decimal-mixed-equation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.gi4-decimal-mixed-number {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-width: 54px;
  justify-content: center;
}

.gi4-decimal-mixed-connect-card {
  padding: 16px 16px 18px;
}

.gi4-decimal-mixed-connect-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  align-items: center;
}

.gi4-decimal-mixed-connect-row + .gi4-decimal-mixed-connect-row {
  margin-top: 72px;
}

.gi4-decimal-mixed-connect-tile {
  position: relative;
  min-height: 74px;
  border: 1.4px solid #c2c8d0;
  border-radius: 8px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px;
  font-weight: 800;
}

.gi4-decimal-mixed-connect-row.decimals .gi4-decimal-mixed-connect-tile {
  min-height: 42px;
  font-size: 18px;
}

.gi4-decimal-mixed-connect-tile .gi4-connect-dot.top {
  position: absolute;
  top: -31px;
}

.gi4-decimal-mixed-connect-tile .gi4-connect-dot.bottom {
  position: absolute;
  bottom: -31px;
}

.gi4-decimal-mixed-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
}

.gi4-decimal-mixed-table th {
  background: #bfe8f3;
  font-size: 18px;
}

.gi4-decimal-mixed-table th,
.gi4-decimal-mixed-table td {
  border: 1px solid #d1dbe3;
  padding: 8px;
  text-align: center;
  vertical-align: middle;
}

.gi4-decimal-mixed-table th:first-child,
.gi4-decimal-mixed-table td:first-child {
  width: 48%;
}

.gi4-decimal-mixed-equivalent-table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 18px;
}

.gi4-decimal-mixed-equivalent-table td {
  border: 1px solid #cbd5e1;
  height: 58px;
  text-align: center;
  vertical-align: middle;
  font-weight: 700;
}

.gi4-inline-frac {
  display: inline-grid;
  grid-template-rows: auto 1px auto;
  justify-items: center;
  min-width: 24px;
  line-height: 1;
}

.gi4-inline-frac small {
  width: 24px;
  border-top: 1.4px solid currentColor;
}

.gi4-decimal-place-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.gi4-decimal-place-card {
  padding: 14px 16px 16px;
  min-height: 345px;
}

.gi4-decimal-place-board {
  display: grid;
  border: 1.5px solid #8a8f99;
  background: #f8fafc;
  margin: 6px auto 18px;
  max-width: 310px;
}

.gi4-decimal-place-board.cols-2 {
  grid-template-columns: 1fr 1fr;
}

.gi4-decimal-place-board.cols-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

.gi4-decimal-place-board.cols-4 {
  grid-template-columns: repeat(4, 1fr);
  max-width: 390px;
}

.gi4-decimal-place-board .place {
  min-height: 74px;
  border-right: 1.2px solid #8a8f99;
  background: #fff;
  padding: 0 6px 6px;
}

.gi4-decimal-place-board .place:last-child {
  border-right: 0;
}

.gi4-decimal-place-board .place strong {
  display: block;
  margin: 0 -6px 6px;
  padding: 5px 0;
  background: #ffd51c;
  border-bottom: 1.2px solid #8a8f99;
  text-align: center;
  font-size: 20px;
}

.gi4-decimal-place-board .place.tens strong {
  background: #48bf4f;
}

.gi4-decimal-place-board .place.tenths {
  background: #e5e7eb;
}

.gi4-decimal-place-board .place.tenths strong {
  background: #ffe69a;
}

.gi4-decimal-place-token {
  display: inline-grid;
  place-items: center;
  min-width: 20px;
  height: 20px;
  margin: 2px;
  border-radius: 50%;
  background: #ffd51c;
  border: 1px solid #d8a900;
  font-size: 10px;
  font-weight: 800;
}

.place.tens .gi4-decimal-place-token {
  background: #48bf4f;
  color: #fff;
  border-color: #26922b;
}

.place.tenths .gi4-decimal-place-token {
  background: #ffe69a;
  font-size: 9px;
}

.gi4-decimal-place-board .place.hundredths,
.gi4-decimal-place-board .place.thousandths {
  background: #e5e7eb;
}

.gi4-decimal-place-board .place.hundredths strong,
.gi4-decimal-place-board .place.thousandths strong {
  background: #ffe69a;
}

.place.hundredths .gi4-decimal-place-token,
.place.thousandths .gi4-decimal-place-token {
  background: #ffe69a;
  font-size: 8px;
}

.gi4-decimal-place-work {
  width: 360px;
  max-width: 100%;
  min-height: 165px;
  margin: 0 auto;
}

.gi4-decimal-place-work-svg {
  width: 360px;
  max-width: 100%;
  height: 165px;
  display: block;
}

.gi4-decimal-place-decimal {
  margin-top: 10px;
  font-size: 18px;
  font-weight: 800;
  text-align: center;
}

.gi4-decimal-write-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 36px;
  font-size: 18px;
}

.gi4-decimal-write-row {
  display: grid;
  grid-template-columns: max-content max-content minmax(96px, 1fr);
  gap: 8px 10px;
  align-items: center;
  justify-content: start;
  position: relative;
  padding-right: 18px;
  min-height: 44px;
}

.gi4-decimal-write-prompt {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 40px;
}

.gi4-decimal-write-prompt .gi4-fraction-box {
  margin: 0;
}

.gi4-decimal-write-equals {
  align-self: center;
}

.gi4-decimal-write-row.values {
  display: flex;
  align-items: end;
  gap: 7px;
  flex-wrap: wrap;
}

.gi4-decimal-write-row .row-delete-btn {
  top: -12px !important;
  right: -6px !important;
}

.gi4-decimal-write-card > .row-delete-btn {
  top: -10px !important;
  right: -10px !important;
}

.gi4-decimal-mixed-order-intro {
  border-color: #7cc34b;
  background: #f3fbdf;
}

.gi4-decimal-mixed-order-intro p {
  margin: 0 0 10px;
  font-weight: 700;
}

.gi4-decimal-mixed-order-axis {
  position: relative;
  height: 250px;
  margin: 4px auto 0;
  width: min(100%, 760px);
}

.gi4-decimal-mixed-order-axis .axis-line {
  position: absolute;
  left: 34px;
  right: 8px;
  top: 116px;
  border-top: 1.6px solid #374151;
}

.gi4-decimal-mixed-order-axis .axis-line::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -4.5px;
  width: 9px;
  height: 9px;
  border-top: 1.6px solid #374151;
  border-right: 1.6px solid #374151;
  transform: rotate(45deg);
  background: #f3fbdf;
}

.gi4-decimal-mixed-order-axis .tick {
  position: absolute;
  top: 106px;
  height: 20px;
  border-left: 1.2px solid #374151;
  transform: translateX(-.5px);
}

.gi4-decimal-mixed-order-axis .tick.major {
  top: 92px;
  height: 34px;
  border-left-width: 1.5px;
}

.gi4-decimal-mixed-order-axis .whole-chip,
.gi4-decimal-mixed-order-axis .decimal-chip,
.gi4-decimal-mixed-order-axis .fraction-chip {
  position: absolute;
  transform: translateX(-50%);
  display: inline-grid;
  place-items: center;
  width: auto;
}

.gi4-decimal-mixed-order-axis .whole-chip,
.gi4-decimal-mixed-order-axis .decimal-chip {
  min-width: 36px;
  min-height: 29px;
  padding: 2px 6px;
  border: 1.3px solid #8bc34a;
  border-radius: 7px;
  background: #fff2a8;
  font-weight: 800;
}

.gi4-decimal-mixed-order-axis .whole-chip {
  top: 86px;
  background: #ffd31a;
}

.gi4-decimal-mixed-order-axis .decimal-chip.top {
  top: 70px;
}

.gi4-decimal-mixed-order-axis .decimal-chip.bottom {
  top: 132px;
}

.gi4-decimal-mixed-order-axis .fraction-chip.top {
  top: 4px;
}

.gi4-decimal-mixed-order-axis .fraction-chip.bottom {
  top: 176px;
}

.gi4-decimal-mixed-order-fraction {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-weight: 800;
}

.gi4-decimal-missing-axis.mixed {
  max-width: 760px;
  padding-left: 44px;
  padding-right: 44px;
}

.gi4-decimal-missing-grid.mixed {
  height: 214px;
}

.gi4-decimal-missing-axis.mixed .gi4-decimal-missing-col {
  width: 46px;
  gap: 9px;
}

.gi4-decimal-mixed-missing-mixed {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.gi4-decimal-mixed-order-jumps-card {
  display: grid;
  gap: 14px;
}

.gi4-decimal-mixed-jump-section {
  display: grid;
  gap: 8px;
}

.gi4-decimal-jump-row.mixed {
  width: 100%;
}

.gi4-decimal-mixed-order-greatest-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  min-height: 64px;
  align-items: stretch;
}

.gi4-decimal-mixed-order-greatest-card .gi4-decimal-greatest-choice {
  min-width: 0;
  min-height: 62px;
  border-radius: 0;
}

.gi4-decimal-mixed-order-greatest-card .gi4-decimal-greatest-choice + .gi4-decimal-greatest-choice {
  border-left: 0;
}

.gi4-decimal-mixed-order-value {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-weight: 800;
  font-size: 18px;
}

.gi4-decimal-mixed-order-compare-card {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 74px;
}

.gi4-decimal-mixed-compare-row {
  display: grid;
  grid-template-columns: minmax(42px, 1fr) 46px minmax(42px, 1fr);
  align-items: center;
  justify-items: center;
  gap: 10px;
  min-height: 46px;
  width: 100%;
}

.gi4-decimal-mixed-self-order {
  grid-column: 1 / -1;
  display: grid;
  justify-items: center;
  gap: 8px;
  margin-top: 8px;
}

@media (max-width: 900px) {
  .gi4-grid.two,
  .gi4-grid.three,
  .gi4-compare-grid,
  .gi4-decimal-intro-grid,
  .gi4-decimal-grid.cards,
  .gi4-decimal-grid.two,
  .gi4-decimal-grid.compare,
  .gi4-decimal-grid.order,
  .gi4-decimal-grid.order.greatest,
  .gi4-decimal-grid.order.compare {
    grid-template-columns: 1fr;
  }

  .gi4-connect-row {
    grid-template-columns: 1fr;
  }
}