:root {
  color-scheme: light;
  --ink: #24312c;
  --muted: #66776e;
  --paper: #fffaf0;
  --paper-strong: #fff3d6;
  --line: #dfd0aa;
  --green: #1d6f5a;
  --green-dark: #124b41;
  --orange: #e46f36;
  --yellow: #f4c45d;
  --blue: #356c9f;
  --rose: #c94b5c;
  --shadow: 0 24px 70px rgba(63, 49, 25, 0.16);
  --radius-lg: 34px;
  --radius-md: 22px;
  --radius-sm: 14px;
  --font-main: "Noto Sans Hebrew", "Rubik", "Assistant", Tahoma, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  direction: ltr;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background:
    radial-gradient(circle at 12% 8%, rgba(244, 196, 93, 0.34), transparent 28rem),
    radial-gradient(circle at 88% 12%, rgba(53, 108, 159, 0.18), transparent 25rem),
    linear-gradient(135deg, #fffaf0 0%, #f6ebd0 52%, #e9f0dc 100%);
  color: var(--ink);
  min-height: 100vh;
  overflow-x: hidden;
  direction: rtl;
}

button,
select,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  max-width: 100%;
  margin: 0 auto;
}

main,
header,
section,
article,
.section-heading,
.quiz-layout,
.learning-grid,
.question {
  min-width: 0;
}

.hero {
  padding: 22px 0 38px;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px;
  border: 1px solid rgba(36, 49, 44, 0.12);
  border-radius: 999px;
  background: rgba(255, 250, 240, 0.82);
  box-shadow: 0 14px 40px rgba(55, 42, 25, 0.1);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-inline: 10px;
  font-weight: 900;
  white-space: nowrap;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: var(--paper);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a,
.topic-pill,
.formula-button,
.menu-toggle,
.site-footer button,
.close-modal {
  border: 0;
  cursor: pointer;
}

.nav-links a {
  padding: 10px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 800;
}

.nav-links a.active,
.nav-links a:hover {
  background: #f2dfb5;
  color: var(--green-dark);
}

.formula-button,
.primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border: 0;
  border-radius: 999px;
  background: var(--green-dark);
  color: var(--paper);
  box-shadow: 0 10px 24px rgba(18, 75, 65, 0.22);
  cursor: pointer;
  font-weight: 900;
}

.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid rgba(36, 49, 44, 0.18);
  border-radius: 999px;
  background: rgba(255, 250, 240, 0.72);
  color: var(--green-dark);
  cursor: pointer;
  font-weight: 900;
}

.menu-toggle {
  display: none;
  min-height: 44px;
  padding: 9px 14px;
  border-radius: 999px;
  background: var(--paper-strong);
  color: var(--green-dark);
  font-weight: 900;
}

.hero-grid {
  display: none;
  grid-template-columns: minmax(0, 1.25fr) minmax(290px, 0.75fr);
  gap: clamp(22px, 5vw, 58px);
  align-items: end;
  padding: clamp(50px, 8vw, 104px) 0 34px;
}

.hero-grid.active {
  display: grid;
}

.hero-copy h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3rem, 8vw, 7.6rem);
  line-height: 0.91;
  letter-spacing: -0.06em;
  color: var(--green-dark);
}

.hero-copy p:not(.eyebrow) {
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.75;
}

.eyebrow,
.card-label {
  margin: 0 0 10px;
  color: var(--orange);
  font-size: 0.88rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.study-card,
.lesson-panel,
.practice-panel,
.tip-card,
.number-line-card,
.shape-board article,
.quiz-card,
.result-card,
.accordion-item {
  border: 1px solid rgba(36, 49, 44, 0.14);
  background: rgba(255, 250, 240, 0.78);
  box-shadow: var(--shadow);
}

.study-card {
  padding: 26px;
  border-radius: var(--radius-lg);
  transform: rotate(-1.2deg);
}

.study-card ul,
.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 14px 0 0;
  list-style: none;
}

.study-card li,
.check-list li {
  position: relative;
  padding-right: 27px;
  line-height: 1.65;
}

.study-card li::before,
.check-list li::before {
  content: "";
  position: absolute;
  top: 0.68em;
  right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: inset 0 0 0 3px var(--paper);
}

.topic-strip {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 0 22px;
  scrollbar-width: none;
}

.topic-strip::-webkit-scrollbar {
  display: none;
}

.topic-pill {
  min-height: 48px;
  padding: 11px 18px;
  border-radius: 999px;
  background: rgba(255, 250, 240, 0.7);
  color: var(--muted);
  border: 1px solid rgba(36, 49, 44, 0.14);
  font-weight: 900;
  white-space: nowrap;
}

.topic-pill.active,
.topic-pill:hover {
  background: var(--orange);
  color: var(--paper);
}

.content-page {
  display: none;
  padding: clamp(34px, 5vw, 68px) 0;
  animation: rise-in 520ms cubic-bezier(0.22, 1, 0.36, 1);
}

.content-page.active {
  display: block;
}

.section-heading {
  display: grid;
  gap: 9px;
  max-width: 760px;
  margin-bottom: clamp(22px, 4vw, 36px);
}

.section-heading h2 {
  margin: 0;
  color: var(--green-dark);
  font-size: clamp(2rem, 5vw, 4.1rem);
  line-height: 1;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
}

.section-heading p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.learning-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.7fr);
  gap: 22px;
}

.lesson-panel,
.practice-panel,
.tip-card,
.number-line-card,
.accordion-item,
.board-panel,
.guided-card,
.quiz-card,
.result-card {
  border-radius: var(--radius-md);
  padding: clamp(20px, 3vw, 30px);
}

.lesson-panel h3,
.practice-panel h3,
.tip-card h3,
.number-line-card h3,
.shape-board h3,
.accordion-title h3 {
  margin: 0 0 12px;
  color: var(--green-dark);
  font-size: 1.45rem;
}

.steps-list {
  margin: 0;
  padding-right: 1.25rem;
  line-height: 1.9;
}

.mini-practice {
  display: grid;
  gap: 14px;
}

.mini-practice button,
.practice-panel > button {
  min-height: 50px;
  padding: 10px 16px;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--blue);
  color: var(--paper);
  cursor: pointer;
  font-weight: 900;
}

.mini-practice p,
.tip-card p,
.shape-board p,
.result-card p {
  color: var(--muted);
  line-height: 1.7;
}

.number-line {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 116px;
  margin-top: 10px;
  padding-top: 54px;
}

.number-line::before {
  content: "";
  position: absolute;
  right: 22px;
  left: 22px;
  top: 58px;
  height: 4px;
  border-radius: 999px;
  background: var(--green-dark);
}

.number-line i {
  position: absolute;
  top: 18px;
  right: var(--x);
  transform: translateX(50%);
  min-width: 46px;
  padding: 6px 8px;
  border-radius: 999px;
  background: var(--yellow);
  color: var(--ink);
  font-style: normal;
  text-align: center;
  font-weight: 900;
}

.number-line i::after {
  content: "";
  position: absolute;
  right: 50%;
  bottom: -24px;
  width: 3px;
  height: 18px;
  background: var(--orange);
}

.shape-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.shape-board article {
  border-radius: var(--radius-md);
  padding: 22px;
}

.shape-board svg {
  width: 100%;
  height: 132px;
  fill: rgba(244, 196, 93, 0.25);
  stroke: var(--green-dark);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.worked-strip,
.guided-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.worked-strip article,
.guided-card {
  border: 1px solid rgba(36, 49, 44, 0.14);
  border-radius: var(--radius-md);
  padding: 20px;
  background: rgba(255, 250, 240, 0.78);
  box-shadow: var(--shadow);
}

.worked-strip h3,
.guided-card h3 {
  margin: 0 0 10px;
  color: var(--green-dark);
}

.worked-strip p,
.guided-card p {
  color: var(--muted);
  line-height: 1.7;
}

.multiplication-board {
  margin-top: 22px;
  border: 1px solid rgba(255, 250, 240, 0.2);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 4vw, 34px);
  background:
    radial-gradient(circle at 12% 8%, rgba(244, 196, 93, 0.22), transparent 34%),
    linear-gradient(145deg, #09110f, #1b1d1c 62%, #111715);
  color: #fff7dc;
  box-shadow: 0 24px 70px rgba(12, 25, 22, 0.3);
}

.multiplication-board p {
  max-width: 780px;
  margin: 0 0 12px;
  color: rgba(255, 247, 220, 0.86);
  line-height: 1.75;
}

.multiplication-board .math-block {
  color: #fff;
  text-shadow: 0 1px 0 rgba(30, 121, 98, 0.9);
}

.long-multiply {
  direction: ltr;
  display: grid;
  gap: 7px;
  width: min(100%, 520px);
  margin-top: 18px;
  border-radius: 24px;
  padding: 20px clamp(16px, 4vw, 28px);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.long-multiply.compact {
  width: min(100%, 360px);
  padding: 16px;
  background: rgba(20, 35, 31, 0.95);
}

.multiply-row {
  display: grid;
  grid-template-columns: 24px max-content minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 26px;
}

.multiply-sign,
.multiply-number {
  direction: ltr;
  unicode-bidi: isolate;
  white-space: pre;
  font-family: "Cascadia Mono", "Consolas", monospace;
  font-size: clamp(1rem, 2.3vw, 1.35rem);
  font-weight: 900;
  letter-spacing: 0.02em;
}

.multiply-sign {
  color: #fff7dc;
  text-align: center;
}

.multiply-number {
  text-align: right;
}

.multiply-note {
  color: rgba(255, 247, 220, 0.68);
  font-size: 0.86rem;
}

.multiply-rule {
  width: calc(24px + 11ch);
  border-top: 1px dashed rgba(255, 255, 255, 0.9);
}

.multiply-total .multiply-number {
  color: #f4c45d;
  font-size: clamp(1.08rem, 2.6vw, 1.48rem);
}

.chunk-card {
  display: grid;
  gap: 8px;
  margin: 14px 0;
  padding: 16px;
  border-radius: 18px;
  background: rgba(244, 196, 93, 0.22);
}

.chunk-card p {
  margin: 0;
}

.long-division {
  direction: ltr;
  display: grid;
  gap: 12px;
  justify-items: start;
}

.ld-answer {
  margin-left: 62px;
  color: var(--orange);
  font-size: 2.2rem;
  font-weight: 950;
}

.ld-box {
  position: relative;
  display: inline-grid;
  grid-template-columns: 44px auto;
  align-items: start;
  min-height: 54px;
  color: var(--green-dark);
  font-size: 2rem;
  font-weight: 950;
}

.ld-divisor {
  padding-top: 12px;
  text-align: center;
}

.ld-dividend {
  min-width: 112px;
  padding: 12px 14px 6px;
  border-top: 4px solid currentColor;
  border-left: 4px solid currentColor;
}

.ld-corner {
  position: absolute;
  left: 42px;
  top: 0;
  width: 18px;
  height: 18px;
  border-top: 4px solid currentColor;
  border-left: 4px solid currentColor;
  transform: skewX(-18deg);
}

.mini-division {
  padding: 8px 0;
}

.mini-division .ld-box {
  font-size: 1.45rem;
}

.mini-division .ld-dividend {
  min-width: 86px;
}

.board-panel {
  margin-top: 22px;
  border: 1px solid rgba(255, 250, 240, 0.22);
  background:
    linear-gradient(130deg, rgba(255, 255, 255, 0.05), transparent 34%),
    #14231f;
  color: #fff7dc;
  box-shadow: 0 24px 70px rgba(12, 25, 22, 0.25);
}

.board-title h3 {
  margin: 0 0 12px;
  color: #fff7dc;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
}

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

.board-question {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid rgba(255, 250, 240, 0.16);
  border-radius: 18px;
  background: rgba(255, 250, 240, 0.06);
  font-size: 1.25rem;
}

.board-question strong {
  display: block;
  direction: ltr;
  justify-self: start;
  font-size: clamp(1.35rem, 3vw, 2.1rem);
}

.board-question details,
.guided-card details {
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(244, 196, 93, 0.14);
  line-height: 1.65;
}

.board-question summary,
.guided-card summary {
  cursor: pointer;
  font-weight: 900;
}

.board-question p {
  margin: 10px 0 0;
}

.frac {
  display: inline-grid;
  grid-template-rows: auto auto;
  place-items: center;
  min-width: 34px;
  vertical-align: middle;
  line-height: 1;
}

.frac b {
  display: block;
  padding: 0 4px 3px;
  border-bottom: 2px solid currentColor;
}

.frac i {
  display: block;
  padding-top: 3px;
  font-style: normal;
}

.mixed-number {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  direction: ltr;
  unicode-bidi: isolate;
  vertical-align: middle;
}

.whole-number {
  font-weight: inherit;
}

.mixed sup,
.mixed sub {
  font-size: 0.65em;
}

.shape-line,
.shape-choice-mini {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.shape-line span,
.shape-choice-mini span {
  display: grid;
  gap: 6px;
  justify-items: center;
  min-width: 92px;
  padding: 12px;
  border-radius: 18px;
  background: rgba(255, 250, 240, 0.09);
  color: inherit;
  font-weight: 900;
}

.shape-line svg,
.shape-choice-mini svg,
.quiz-visual svg {
  width: 74px;
  height: 62px;
  fill: rgba(244, 196, 93, 0.24);
  stroke: currentColor;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.geometry-prompts {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  line-height: 1.7;
}

.geometry-prompts p {
  margin: 0;
}

.exercise-line {
  color: var(--green-dark) !important;
  font-size: 1.55rem;
  font-weight: 950;
  text-align: left;
}

.quiz-visual {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  margin: 2px 0 4px;
  padding: 12px;
  border-radius: 18px;
  background: rgba(255, 250, 240, 0.72);
  color: var(--green-dark);
}

.quiz-visual.shape-choice-mini {
  width: 100%;
  justify-content: flex-start;
}

.accordion {
  display: grid;
  gap: 14px;
}

.accordion-item {
  overflow: hidden;
}

.accordion-trigger {
  display: flex;
  width: 100%;
  min-height: 62px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 0;
  background: transparent;
  color: var(--green-dark);
  cursor: pointer;
  text-align: right;
}

.accordion-trigger span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--orange);
  color: var(--paper);
  font-weight: 950;
}

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 260ms ease;
}

.accordion-item.open .accordion-content {
  grid-template-rows: 1fr;
}

.accordion-inner {
  overflow: hidden;
}

.solution-steps {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.solution-steps li {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(244, 196, 93, 0.18);
  line-height: 1.7;
}

.test-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 22px;
}

.test-controls label {
  display: grid;
  gap: 7px;
  color: var(--green-dark);
  font-weight: 900;
}

.test-controls select {
  min-width: 190px;
  min-height: 48px;
  padding: 8px 14px;
  border: 1px solid rgba(36, 49, 44, 0.18);
  border-radius: 15px;
  background: rgba(255, 250, 240, 0.82);
  color: var(--ink);
}

.quiz-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 18px;
  align-items: start;
}

.quiz-card {
  display: grid;
  gap: 16px;
}

.question {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid rgba(36, 49, 44, 0.12);
  border-radius: 18px;
  background: rgba(255, 243, 214, 0.58);
}

.question label {
  display: grid;
  gap: 6px;
  color: var(--green-dark);
  font-weight: 900;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.q-index {
  justify-self: end;
  color: var(--orange);
  font-size: 0.9rem;
}

.q-prompt {
  display: grid;
  gap: 5px;
  width: 100%;
  min-width: 0;
  direction: ltr;
}

.q-text-he {
  direction: rtl;
  unicode-bidi: isolate;
  justify-self: end;
  text-align: right;
}

.math-line,
.math-block,
.math-inline,
.math-token,
.exercise-line,
.board-question strong,
.chunk-card strong,
.tip-card strong,
.ld-answer,
.ld-box,
.number-line,
.number-line i {
  direction: ltr;
  unicode-bidi: isolate;
}

.math-line,
.math-block {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin: 4px auto 4px 0;
  text-align: left;
  letter-spacing: 0.01em;
  justify-self: start;
}

.math-line {
  font-size: 1.18em;
  font-weight: 950;
}

.math-inline,
.math-token {
  display: inline-block;
  text-align: left;
  white-space: nowrap;
}

.question input {
  min-height: 48px;
  border: 1px solid rgba(36, 49, 44, 0.18);
  border-radius: 13px;
  padding: 10px 13px;
  background: rgba(255, 250, 240, 0.94);
  direction: ltr;
  text-align: left;
}

.question.correct {
  border-color: rgba(29, 111, 90, 0.55);
  background: rgba(211, 235, 218, 0.65);
}

.question.wrong {
  border-color: rgba(201, 75, 92, 0.55);
  background: rgba(255, 225, 223, 0.72);
}

.feedback {
  display: none;
  color: var(--muted);
  line-height: 1.65;
}

.feedback .math-line {
  margin: 4px 0;
  color: var(--green-dark);
}

.feedback-hint {
  display: block;
}

.show-feedback .feedback,
.question.correct .feedback,
.question.wrong .feedback {
  display: block;
}

.quiz-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.result-card {
  position: sticky;
  top: 96px;
}

.result-card strong {
  display: block;
  color: var(--green-dark);
  font-size: 2rem;
  line-height: 1.1;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 40px 0 26px;
  padding: 22px 0;
  border-top: 1px solid rgba(36, 49, 44, 0.16);
  color: var(--muted);
}

.site-footer button {
  min-height: 44px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--paper-strong);
  color: var(--green-dark);
  font-weight: 900;
}

.formula-modal {
  width: min(900px, calc(100% - 28px));
  border: 0;
  border-radius: 28px;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 30px 100px rgba(20, 36, 31, 0.36);
}

.formula-modal::backdrop {
  background: rgba(20, 30, 28, 0.55);
  backdrop-filter: blur(4px);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 24px;
  border-bottom: 1px solid rgba(36, 49, 44, 0.12);
}

.modal-head h2 {
  margin: 0;
  color: var(--green-dark);
}

.close-modal {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 50%;
  background: var(--green-dark);
  color: var(--paper);
  font-size: 1.8rem;
  line-height: 1;
}

.formula-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 24px;
}

.formula-grid article {
  border-radius: 18px;
  padding: 18px;
  background: var(--paper-strong);
}

.formula-grid h3 {
  margin: 0 0 10px;
  color: var(--green-dark);
}

.formula-grid p {
  margin: 8px 0;
  line-height: 1.7;
}

.formula-grid strong {
  display: inline-block;
  direction: ltr;
  unicode-bidi: isolate;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}

@media (max-width: 880px) {
  .page-shell {
    width: min(720px, calc(100% - 22px));
  }

  .topbar {
    align-items: stretch;
    border-radius: 24px;
    flex-wrap: wrap;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
  }

  .nav-links {
    display: none;
    flex-basis: 100%;
    order: 4;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .nav-links.open {
    display: grid;
  }

  .nav-links a {
    background: rgba(242, 223, 181, 0.62);
    text-align: center;
  }

  .hero-grid,
  .learning-grid,
  .quiz-layout {
    grid-template-columns: 1fr;
  }

  .study-card {
    transform: none;
  }

  .shape-board,
  .worked-strip,
  .guided-grid,
  .formula-grid {
    grid-template-columns: 1fr;
  }

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

  .result-card {
    position: static;
  }
}

@media (max-width: 560px) {
  .hero {
    padding-top: 10px;
  }

  .topbar {
    top: 8px;
  }

  .brand span:last-child {
    display: none;
  }

  .formula-button {
    padding-inline: 13px;
  }

  .hero-copy h1 {
    font-size: clamp(2.8rem, 16vw, 4.7rem);
  }

  .hero-actions,
  .test-controls,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-action,
  .secondary-action,
  .test-controls select,
  .test-controls label {
    width: 100%;
  }

  .content-page {
    padding-block: 32px;
  }
}

@media print {
  body {
    background: white;
  }

  .topbar,
  .topic-strip,
  .hero-actions,
  .test-controls,
  .site-footer,
  .result-card {
    display: none;
  }

  .page-shell {
    width: 100%;
  }

  .content-page {
    display: block;
    break-inside: avoid;
  }

  .study-card,
  .lesson-panel,
  .practice-panel,
  .tip-card,
  .number-line-card,
  .shape-board article,
  .quiz-card,
  .accordion-item {
    box-shadow: none;
  }
}