:root {
  --bg: #f7f1e8;
  --panel: rgba(255, 252, 247, 0.88);
  --panel-strong: #fffaf2;
  --ink: #1f2a2e;
  --muted: #56656a;
  --accent: #b5512d;
  --accent-deep: #7f351a;
  --line: rgba(31, 42, 46, 0.12);
  --shadow: 0 18px 45px rgba(77, 44, 24, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "DM Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 202, 146, 0.55), transparent 32%),
    radial-gradient(circle at bottom right, rgba(123, 170, 152, 0.24), transparent 28%),
    linear-gradient(135deg, #f8efe2 0%, #f4f1eb 42%, #efe6d9 100%);
}

.page-shell {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.hero {
  padding: 1rem 0 2rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Fraunces", serif;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2.6rem, 4vw, 4.6rem);
  max-width: 10ch;
}

.hero-copy {
  max-width: 44rem;
  margin: 1rem 0 0;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-nav {
  display: inline-flex;
  gap: 0.45rem;
  padding: 0.35rem;
  margin-bottom: 1.1rem;
  border-radius: 999px;
  background: rgba(255, 250, 242, 0.82);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.page-nav-link {
  padding: 0.65rem 1rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 700;
}

.page-nav-link.is-active {
  background: rgba(181, 81, 45, 0.12);
  color: var(--accent-deep);
}

.control-panel,
.results-panel,
.worksheet-panel {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.control-panel {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "form"
    "meta";
  gap: 1rem;
  padding: 1rem;
  align-items: start;
}

.generator-form {
  grid-area: form;
  display: grid;
  grid-template-columns: minmax(220px, 1.35fr) minmax(170px, 0.9fr) minmax(220px, 1.25fr) minmax(200px, 0.95fr);
  gap: 1rem;
  align-items: end;
  padding: 1.15rem;
  border-radius: 22px;
  background: rgba(255, 250, 242, 0.78);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.field span {
  font-size: 0.92rem;
  font-weight: 700;
}

select,
button,
input {
  font: inherit;
}

select {
  width: 100%;
  padding: 0.95rem 1rem;
  padding-right: 2.5rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel-strong);
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

button {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

button:hover {
  transform: translateY(-1px);
}

.primary-button {
  grid-column: 1 / -1;
  justify-self: center;
  width: min(320px, 100%);
  padding: 0.95rem 1.2rem;
  background: linear-gradient(135deg, var(--accent) 0%, #cd7043 100%);
  color: #fff8f4;
  font-weight: 700;
}

.secondary-button {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(181, 81, 45, 0.1);
  color: var(--accent-deep);
  font-weight: 700;
}

.topic-meta-card {
  grid-area: meta;
  display: grid;
  grid-template-columns: 1.1fr 1.1fr 1.3fr 2.2fr;
  align-items: stretch;
  padding: 1.1rem 1.2rem;
  border-radius: 22px;
  background: rgba(255, 250, 242, 0.96);
  border: 1px solid var(--line);
  gap: 0.75rem;
}

.meta-row {
  display: flex;
  min-width: 0;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(31, 42, 46, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.45);
  gap: 0.6rem;
  align-items: flex-start;
}

.meta-row-compact {
  flex-direction: column;
  justify-content: flex-start;
  min-height: 132px;
}

.meta-row-stack {
  grid-column: span 2;
  flex-direction: column;
}

.meta-row-objective {
  grid-column: span 1;
}

.meta-row-sequence {
  grid-column: span 2;
}

.topic-meta-card .principle-card {
  grid-column: span 2;
}

.meta-label {
  flex: 0 0 auto;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-deep);
}

.meta-value {
  flex: 1 1 auto;
  text-align: left;
  line-height: 1.5;
  min-width: 0;
  font-size: 1.05rem;
}

.meta-row-stack .meta-value {
  text-align: left;
}

.meta-row-compact .meta-value {
  padding-top: 0.35rem;
}

.meta-row-objective .meta-value,
.meta-row-sequence .meta-value {
  padding-top: 0.35rem;
}

.principle-card {
  padding: 1.1rem 1.2rem;
  border-radius: 22px;
  background: rgba(31, 42, 46, 0.96);
  color: #edf2ef;
  min-height: 100%;
  border: 0;
}

.principle-card h2 {
  font-size: 1.2rem;
  margin-bottom: 0.7rem;
}

.principle-card p {
  margin: 0;
  line-height: 1.6;
  color: rgba(237, 242, 239, 0.82);
}

.results-panel,
.worksheet-panel {
  margin-top: 1.3rem;
  padding: 1.4rem;
}

.results-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.teaching-section {
  margin-bottom: 1.4rem;
}

.teaching-header {
  margin-bottom: 0.85rem;
}

.teaching-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
}

.teaching-card {
  padding: 1rem 1.1rem;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 250, 242, 0.9);
}

.teaching-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 320px;
  padding: 1.2rem 1.2rem 1.1rem;
}

.teaching-step {
  display: inline-block;
  margin-bottom: 0.55rem;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.teaching-prompt {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 100%;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.5;
  min-height: 88px;
}

.teaching-diagram,
.question-diagram,
.worksheet-diagram {
  width: 100%;
  margin: 0.75rem 0 0.9rem;
  padding: 0.55rem;
  border-radius: 16px;
  border: 1px solid rgba(31, 42, 46, 0.08);
  background: rgba(255, 255, 255, 0.58);
}

.teaching-diagram {
  margin-top: 0.45rem;
}

.diagram-ratio-groups {
  padding: 0;
  border: 0;
  background: transparent;
}

.diagram-ratio-groups .math-diagram-svg {
  max-width: 340px;
}

.math-diagram-svg {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  margin: 0 auto;
  color: var(--ink);
}

.diagram-label {
  font-family: "DM Sans", sans-serif;
  font-size: 12px;
  font-weight: 700;
  fill: currentColor;
}

.diagram-small-label {
  font-family: "DM Sans", sans-serif;
  font-size: 10px;
  font-weight: 700;
  fill: currentColor;
}

.symmetry-line {
  display: none;
  stroke: var(--accent);
  stroke-width: 2.2;
  stroke-dasharray: 6 5;
  opacity: 0.95;
}

body.showing-answers .symmetry-line {
  display: block;
}

.comparison-diagram-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.comparison-diagram-card {
  text-align: center;
}

.comparison-diagram-title {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.stem-leaf-diagram {
  max-width: 320px;
  margin: 0 auto;
  padding: 0.5rem 0.7rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(31, 42, 46, 0.08);
  font-family: "DM Sans", sans-serif;
  text-align: left;
  align-self: stretch;
}

.stem-leaf-row {
  display: grid;
  grid-template-columns: 1.6rem auto 1fr;
  gap: 0.45rem;
  align-items: baseline;
  padding: 0.14rem 0;
  font-size: 0.96rem;
  justify-items: start;
}

.stem-leaf-stem,
.stem-leaf-divider {
  font-weight: 700;
  color: var(--accent-deep);
}

.stem-leaf-leaves {
  letter-spacing: 0.08em;
}

.stem-leaf-key {
  margin-top: 0.45rem;
  padding-top: 0.35rem;
  border-top: 1px solid rgba(31, 42, 46, 0.08);
  font-size: 0.78rem;
  color: var(--muted);
}

.data-table-diagram {
  max-width: 320px;
  margin: 0 auto;
}

.data-table-title {
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.diagram-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.diagram-table th,
.diagram-table td {
  padding: 0.45rem 0.55rem;
  border-bottom: 1px solid rgba(31, 42, 46, 0.08);
  text-align: left;
  font-size: 0.9rem;
}

.diagram-table tr:last-child td {
  border-bottom: 0;
}

.diagram-table th {
  background: rgba(213, 106, 71, 0.08);
  color: var(--accent-deep);
  font-weight: 700;
}

.teaching-note,
.teaching-focus {
  margin: 0.7rem 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.teaching-workspace {
  width: 100%;
  flex: 1 1 auto;
  margin-top: 1rem;
  border-radius: 16px;
  background:
    linear-gradient(to bottom, transparent calc(100% - 1px), rgba(31, 42, 46, 0.08) calc(100% - 1px));
  background-size: 100% 3.2rem;
  background-position: top left;
  min-height: 140px;
}

.action-row {
  display: grid;
  grid-template-columns: auto auto;
  gap: 0.7rem;
  align-items: center;
  justify-content: start;
}

.action-stack {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  min-width: 176px;
}

.answer-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.75rem 0.95rem;
  border-radius: 999px;
  background: rgba(31, 42, 46, 0.06);
}

.question-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  padding: 0;
  margin: 0;
  list-style-position: inside;
}

.question-list li {
  padding: 1rem 1.1rem;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 250, 242, 0.9);
}

.reasoning-section {
  margin-top: 1.5rem;
}

.reasoning-header {
  margin-bottom: 0.85rem;
}

.reasoning-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.reasoning-list li {
  padding: 1rem 1.1rem;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 250, 242, 0.9);
}

.question-text {
  display: block;
  margin-top: 0.3rem;
  font-size: 1.05rem;
  font-weight: 700;
}

.reasoning-text {
  display: block;
  margin-top: 0.35rem;
  font-size: 1.02rem;
  line-height: 1.6;
}

.math-fraction {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  margin: 0 0.12em;
  line-height: 1;
}

.fraction-top,
.fraction-bottom {
  display: block;
  padding: 0 0.22em;
  text-align: center;
}

.fraction-top {
  border-bottom: 1.5px solid currentColor;
  padding-bottom: 0.08em;
}

.fraction-bottom {
  padding-top: 0.08em;
}

.change-note {
  display: inline-block;
  margin-top: 0.65rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.change-note[hidden] {
  display: none;
}

.worksheet-sheet {
  border-radius: 20px;
  padding: 1.5rem;
  background: #fffdf8;
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.worksheet-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-end;
  border-bottom: 1px solid rgba(31, 42, 46, 0.08);
  padding-bottom: 1rem;
}

.worksheet-meta {
  margin: 0;
  color: var(--muted);
}

.worksheet-questions,
.answer-key {
  margin: 1.4rem 0 0;
  padding-left: 1.4rem;
  list-style-position: outside;
}

.worksheet-questions li,
.answer-key li {
  margin-bottom: 1rem;
  line-height: 1.6;
}

.worksheet-question-item {
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(31, 42, 46, 0.08);
}

.worksheet-question-item:last-child {
  border-bottom: 0;
  padding-bottom: 0.25rem;
}

.worksheet-question-text {
  display: inline-block;
  min-height: 1.8rem;
}

.worksheet-working {
  margin-top: 0.7rem;
  min-height: 4.6rem;
  border-radius: 12px;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent 1.05rem,
      rgba(31, 42, 46, 0.12) 1.05rem,
      rgba(31, 42, 46, 0.12) 1.12rem
    );
}

.worksheet-question-item-diagram .worksheet-working {
  min-height: 3.1rem;
}

.answer-text {
  display: inline;
}

.answer-section {
  margin-top: 1.8rem;
  padding-top: 1.2rem;
  border-top: 1px dashed rgba(31, 42, 46, 0.18);
}

.answer-section h3 {
  font-size: 1.2rem;
}

.worksheet-reasoning-section {
  margin-top: 1.8rem;
}

.worksheet-reasoning-section h3 {
  font-size: 1.2rem;
  margin-bottom: 0.7rem;
}

.assessment-control-panel {
  padding: 1.2rem;
}

.assessment-form {
  display: grid;
  gap: 1.1rem;
}

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

.assessment-topic-picker {
  padding: 1.2rem;
  border-radius: 22px;
  background: rgba(255, 250, 242, 0.84);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.assessment-topic-picker-header {
  margin-bottom: 0.95rem;
}

.assessment-topic-picker-header h2 {
  font-size: 1.25rem;
  margin-bottom: 0.35rem;
}

.assessment-topic-picker-header p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.assessment-topic-rows {
  display: grid;
  gap: 0.75rem;
}

.assessment-topic-row {
  display: grid;
  grid-template-columns: 135px minmax(0, 1fr) 180px;
  gap: 0.8rem;
  align-items: end;
  padding: 0.95rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.assessment-topic-toggle {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  min-height: 52px;
}

.assessment-topic-toggle input {
  accent-color: var(--accent);
}

.assessment-results-panel {
  padding-bottom: 1.1rem;
}

.assessment-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.assessment-summary-card {
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(255, 250, 242, 0.82);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.assessment-summary-label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-deep);
}

.assessment-summary-value {
  font-size: 1.5rem;
  font-family: "Fraunces", serif;
}

.assessment-summary-empty {
  margin: 0;
  color: var(--muted);
}

.assessment-sheet {
  background: #fffdf9;
}

.assessment-paper-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  padding-bottom: 1rem;
  border-bottom: 2px solid rgba(31, 42, 46, 0.12);
}

.assessment-paper-meta {
  text-align: right;
  color: var(--muted);
}

.assessment-paper-meta p {
  margin: 0.15rem 0;
}

.assessment-candidate-box {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1.5px solid rgba(31, 42, 46, 0.18);
  border-radius: 12px;
  background: #fff;
}

.candidate-line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
}

.line-fill {
  flex: 1 1 auto;
  border-bottom: 1.5px solid rgba(31, 42, 46, 0.25);
  min-height: 1rem;
}

.assessment-instructions {
  margin-top: 1.2rem;
  padding: 1rem 1.1rem;
  border-radius: 12px;
  background: rgba(247, 241, 232, 0.55);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.assessment-instructions h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.assessment-instructions ul {
  margin: 0;
  padding-left: 1.25rem;
  line-height: 1.6;
}

.assessment-paper-sections {
  display: grid;
  gap: 1.4rem;
  margin-top: 1.3rem;
}

.assessment-section {
  page-break-inside: avoid;
}

.assessment-section-header {
  margin-bottom: 0.8rem;
}

.assessment-section-header h3 {
  font-size: 1.18rem;
  margin-bottom: 0.2rem;
}

.assessment-section-header p {
  margin: 0;
  color: var(--muted);
}

.assessment-question-list {
  margin: 0;
  padding-left: 1.5rem;
  display: grid;
  gap: 0.9rem;
}

.assessment-question-item {
  padding: 0.95rem 1rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(31, 42, 46, 0.1);
  background: #fff;
  page-break-inside: avoid;
}

.assessment-question-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
  font-size: 0.88rem;
  font-weight: 700;
}

.assessment-question-topic {
  color: var(--accent-deep);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.assessment-question-marks {
  color: var(--muted);
}

.assessment-question-text {
  line-height: 1.65;
}

.assessment-diagram {
  margin-top: 0.75rem;
}

.assessment-working {
  margin-top: 0.9rem;
  border: 1px dashed rgba(31, 42, 46, 0.16);
  border-radius: 10px;
  background:
    linear-gradient(to bottom, transparent 0, transparent calc(100% - 1px), rgba(31, 42, 46, 0.08) calc(100% - 1px));
  background-size: 100% 1.4rem;
}

.assessment-mark-scheme-marks {
  color: var(--muted);
  font-weight: 700;
}

.starter-control-panel {
  padding: 1.2rem;
}

.starter-form {
  display: grid;
  gap: 1.1rem;
}

.starter-topic-picker {
  padding: 1.2rem;
  border-radius: 22px;
  background: rgba(255, 250, 242, 0.84);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.starter-topic-list {
  display: grid;
  gap: 0.9rem;
}

.starter-topic-group {
  padding: 0.9rem 1rem 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.starter-topic-group-title {
  margin-bottom: 0.7rem;
  font-size: 1rem;
}

.starter-topic-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}

.starter-topic-option {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.7rem;
  border-radius: 14px;
  background: rgba(255, 250, 242, 0.76);
  border: 1px solid rgba(31, 42, 46, 0.08);
  font-size: 0.94rem;
  line-height: 1.35;
}

.starter-topic-option input {
  margin: 0;
  accent-color: var(--accent);
}

.starter-topic-option:has(input:disabled:not(:checked)) {
  opacity: 0.45;
}

.starter-results-panel {
  padding-bottom: 1.1rem;
}

.starter-sheet-panel {
  margin-top: 1.3rem;
}

.starter-sheet {
  background: #fffdf9;
}

.starter-sheet-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-end;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(31, 42, 46, 0.08);
}

.starter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.starter-card {
  min-height: 210px;
  padding: 1rem 1rem 1.05rem;
  border-radius: 18px;
  border: 1px solid rgba(31, 42, 46, 0.1);
  background: #fff;
  display: flex;
  flex-direction: column;
}

.starter-card-easy {
  box-shadow: inset 0 3px 0 rgba(123, 170, 152, 0.34);
}

.starter-card-medium {
  box-shadow: inset 0 3px 0 rgba(225, 174, 92, 0.4);
}

.starter-card-hard {
  box-shadow: inset 0 3px 0 rgba(181, 81, 45, 0.32);
}

.starter-card-header {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.7rem;
}

.starter-card-topic {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.starter-card-question {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
}

.starter-card-diagram {
  margin-top: auto;
  margin-bottom: 0;
}

.number-game-control-panel {
  padding: 1.2rem;
}

.number-game-form {
  display: grid;
  grid-template-columns: minmax(180px, 220px) minmax(180px, 220px) minmax(240px, 1fr);
  gap: 1rem;
  align-items: end;
}

.number-game-button-stack {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.number-game-results-panel {
  padding-bottom: 1.1rem;
}

.number-game-board {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1rem;
  align-items: stretch;
}

.number-game-target-panel,
.number-game-numbers-panel,
.number-game-solution-card,
.number-game-working-panel {
  padding: 1.15rem;
  border-radius: 20px;
  background: rgba(255, 250, 242, 0.88);
  border: 1px solid rgba(31, 42, 46, 0.08);
}

.number-game-target {
  display: grid;
  place-items: center;
  min-height: 138px;
  border-radius: 18px;
  background: rgba(31, 42, 46, 0.96);
  color: #fff8f4;
  font-family: "Fraunces", serif;
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1;
}

.number-game-timer-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.85rem;
  padding: 0.8rem 0.9rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.56);
}

.number-game-timer-label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.number-game-timer {
  font-family: "Fraunces", serif;
  font-size: 2rem;
}

.number-game-numbers {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin-top: 0.35rem;
}

.number-game-tile {
  display: grid;
  place-items: center;
  min-height: 112px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(181, 81, 45, 0.18) 0%, rgba(213, 106, 71, 0.32) 100%);
  border: 1px solid rgba(31, 42, 46, 0.08);
  font-family: "Fraunces", serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1;
}

.number-game-solution-panel {
  margin-top: 1rem;
}

.number-game-solution-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  margin-bottom: 0.8rem;
}

.number-game-solution-text,
.number-game-print-solution-text {
  display: grid;
  gap: 0.4rem;
  line-height: 1.55;
}

.crossword-control-panel {
  padding: 2rem;
}

.crossword-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.25rem;
  align-items: end;
}

.crossword-button-stack {
  display: grid;
  gap: 0.85rem;
}

.crossword-results-panel,
.crossword-sheet-panel {
  margin-top: 1.5rem;
}

.crossword-sheet {
  display: grid;
  gap: 1.75rem;
}

.crossword-sheet-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
}

.crossword-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
  gap: 1.5rem;
  align-items: start;
}

.crossword-grid-panel,
.crossword-clues-panel {
  border: 1px solid rgba(43, 52, 56, 0.08);
  border-radius: 1.5rem;
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.78);
}

.crossword-grid {
  display: grid;
  gap: 0;
  justify-content: start;
  background: #2b3438;
  padding: 0.18rem;
  border-radius: 0.55rem;
}

.crossword-cell {
  position: relative;
  width: 2.4rem;
  height: 2.4rem;
  border: 1px solid rgba(43, 52, 56, 0.16);
  border-radius: 0;
  background: #fffdf8;
  display: flex;
  align-items: center;
  justify-content: center;
}

.crossword-cell.is-block {
  background: #2b3438;
  border-color: #2b3438;
}

.crossword-cell-number {
  position: absolute;
  top: 0.12rem;
  left: 0.18rem;
  font-size: 0.6rem;
  line-height: 1;
  color: #8a4a28;
  font-weight: 700;
}

.crossword-cell-letter {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: transparent;
}

.crossword-grid.show-answers .crossword-cell-letter {
  color: #2b3438;
}

.crossword-clues-panel {
  display: grid;
  gap: 1.25rem;
}

.crossword-clues-section h3 {
  margin-bottom: 0.7rem;
  font-size: 1.05rem;
}

.crossword-clue-list {
  margin: 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.crossword-clue-number {
  color: #8a4a28;
  font-weight: 700;
}

.crossword-enum {
  color: #8a4a28;
  font-weight: 700;
}

@media (max-width: 980px) {
  .control-panel {
    grid-template-columns: 1fr;
  }

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

  .topic-meta-card {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .meta-row-objective,
  .meta-row-sequence,
  .topic-meta-card .principle-card {
    grid-column: span 2;
  }

  .assessment-meta-grid,
  .assessment-summary-grid,
  .assessment-candidate-box {
    grid-template-columns: 1fr;
  }

  .number-game-form,
  .number-game-board,
  .number-game-solution-summary,
  .crossword-form,
  .crossword-layout,
  .starter-topic-options,
  .starter-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .generator-form {
    grid-template-columns: 1fr;
  }

  .topic-meta-card {
    grid-template-columns: 1fr;
  }

  .teaching-grid {
    grid-template-columns: 1fr;
  }

  .comparison-diagram-grid {
    grid-template-columns: 1fr;
  }

  .meta-row-stack {
    grid-column: auto;
  }

  .meta-row-objective,
  .meta-row-sequence,
  .topic-meta-card .principle-card {
    grid-column: auto;
  }

  .question-list {
    grid-template-columns: 1fr;
  }

  .results-header,
  .worksheet-heading {
    flex-direction: column;
    align-items: flex-start;
  }

  .action-row {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .action-stack {
    min-width: 0;
    width: 100%;
  }

  .number-game-numbers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .assessment-topic-row,
  .assessment-paper-header {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .starter-sheet-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .crossword-sheet-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .assessment-paper-meta {
    text-align: left;
  }
}

@media print {
  @page {
    size: A4 portrait;
    margin: 14mm 12mm;
  }

  body {
    background: #fff;
    color: #000;
  }

  .hero,
  .control-panel,
  .results-panel {
    display: none;
  }

  .page-shell {
    width: 100%;
    padding: 0;
  }

  .worksheet-panel {
    margin: 0;
    padding: 0;
    background: #fff;
    border: 0;
    box-shadow: none;
    break-inside: avoid;
  }

  .worksheet-sheet {
    border: 0;
    padding: 0;
    background: #fff;
  }

  .worksheet-heading {
    gap: 0.6rem;
    align-items: flex-start;
    padding-bottom: 0.7rem;
    margin-bottom: 0.9rem;
    break-after: avoid;
  }

  .worksheet-title,
  #worksheet-title {
    font-size: 1.45rem;
  }

  .worksheet-meta {
    font-size: 0.9rem;
  }

  .worksheet-questions,
  .answer-key {
    margin-top: 0.9rem;
    padding-left: 1.9rem;
    margin-left: 0;
    list-style-position: outside;
  }

  .worksheet-questions li,
  .answer-key li {
    margin-bottom: 0.6rem;
    line-height: 1.35;
    padding-left: 0.12rem;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .worksheet-question-item {
    padding-bottom: 0.55rem;
    border-bottom-color: rgba(31, 42, 46, 0.14);
  }

  .worksheet-diagram {
    margin: 0.4rem 0 0.55rem;
    padding: 0.3rem;
    background: #fff;
    border-color: rgba(31, 42, 46, 0.14);
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .worksheet-working {
    margin-top: 0.45rem;
    min-height: 3.4rem;
    border-radius: 0;
    background:
      repeating-linear-gradient(
        to bottom,
        transparent 0,
        transparent 0.88rem,
        rgba(31, 42, 46, 0.18) 0.88rem,
        rgba(31, 42, 46, 0.18) 0.94rem
      );
  }

  .worksheet-question-item-diagram .worksheet-working {
    min-height: 2.2rem;
  }

  .worksheet-question-text,
  .answer-text {
    font-size: 0.98rem;
  }

  .answer-section {
    margin-top: 1.2rem;
    padding-top: 0.9rem;
    break-before: page;
    page-break-before: always;
  }

  .answer-section h3 {
    margin-bottom: 0.5rem;
  }

  .answer-key {
    column-count: 2;
    column-gap: 1.6rem;
  }

  .answer-key li {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .math-fraction {
    margin: 0 0.08em;
  }

  .fraction-top {
    border-bottom-width: 1px;
  }

  .page-nav,
  .assessment-results-panel,
  .starter-results-panel,
  .number-game-results-panel,
  .crossword-results-panel {
    display: none !important;
  }

  .assessment-paper-panel .worksheet-sheet {
    padding: 0;
    background: #fff;
  }

  .assessment-question-item,
  .assessment-section,
  .assessment-candidate-box,
  .assessment-instructions {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .starter-sheet-panel .worksheet-sheet {
    padding: 0;
    background: #fff;
  }

  .number-game-target {
    min-height: 102px;
    font-size: 2.6rem;
  }

  .number-game-tile {
    min-height: 78px;
    font-size: 2rem;
  }

  .starter-sheet-header {
    gap: 0.55rem;
    align-items: flex-start;
    padding-bottom: 0.7rem;
    margin-bottom: 0.75rem;
  }

  .starter-grid {
    gap: 0.5rem;
  }

  .starter-card {
    min-height: 0;
    padding: 0.7rem 0.75rem 0.8rem;
    break-inside: avoid;
    page-break-inside: avoid;
    box-shadow: none;
  }

  .starter-card-header {
    margin-bottom: 0.45rem;
  }

  .starter-card-topic,
  .starter-card-topic {
    font-size: 0.68rem;
  }

  .starter-card-question {
    font-size: 0.92rem;
    line-height: 1.45;
  }
}