.learn-hero {
  padding: 30px 0 88px;
}
.learn-crumb {
  display: flex;
  gap: 8px;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}
.learn-crumb a:hover { text-decoration: underline; }
.learn-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
  padding-top: 64px;
}
.learn-hero-copy h1 {
  max-width: 760px;
  text-wrap: balance;
}
.learn-lede {
  max-width: 660px;
  margin: 18px 0 0;
  color: var(--text-ink);
  font-size: 19px;
  line-height: 1.58;
  text-wrap: pretty;
}
.learn-hero-actions,
.learn-next-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 30px;
}
.learn-text-link,
.learn-inline-links a {
  font-weight: 600;
}
.learn-text-link:hover,
.learn-inline-links a:hover { text-decoration: underline; }
.learn-hero-specimen {
  min-height: 440px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.learn-specimen-note {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .11em;
}
.learn-guide {
  min-height: 270px;
  margin-block: 26px 20px;
  overflow: hidden;
}
.learn-guide .letter-guide {
  width: 100%;
  height: 270px;
  overflow: visible;
}
.learn-hero-specimen > p {
  max-width: 500px;
  margin: auto 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.learn-foundation {
  padding: 80px 0;
  background: var(--surface);
  color: var(--ink);
  border-block: 1px solid var(--line);
}
.learn-foundation-grid {
  display: grid;
  grid-template-columns: minmax(280px, .75fr) minmax(0, 1.25fr);
  gap: clamp(50px, 9vw, 130px);
}
.learn-foundation .eyebrow { color: var(--muted); }
.learn-foundation h2 {
  max-width: 480px;
  text-wrap: balance;
}
.learn-foundation-copy > p {
  max-width: 700px;
  margin-bottom: 38px;
  color: var(--text-ink);
  font-size: 17px;
  line-height: 1.65;
}
.learn-line-key {
  margin: 0;
  border-top: 1px solid var(--line);
}
.learn-line-key > div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 26px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}
.learn-line-key dt { font-weight: 600; }
.learn-line-key dd { margin: 0; color: var(--muted); }
.learn-foundation-source {
  max-width: 620px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}
.learn-foundation-source a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.learn-method { padding: 104px 0 112px; }
.learn-section-heading,
.learn-worksheets-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 470px);
  gap: 60px;
  align-items: end;
  margin-bottom: 42px;
}
.learn-section-heading > p,
.learn-worksheets-heading > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}
.learn-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.learn-step {
  padding: 44px 0;
  border-bottom: 1px solid var(--line);
}
.learn-step-copy {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 22px;
}
.learn-step-number {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--surface);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
}
.learn-step-copy h3 {
  margin-bottom: 12px;
  font-size: 27px;
}
.learn-step-copy p {
  max-width: 670px;
  margin-bottom: 14px;
  color: var(--text-ink);
  line-height: 1.62;
}
.learn-step-tip {
  color: var(--muted) !important;
  font-size: 14px;
}
.learn-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
}
.learn-step-choose {
  display: grid;
  grid-template-columns: minmax(300px, .78fr) minmax(0, 1.22fr);
  gap: clamp(36px, 7vw, 88px);
  align-items: center;
}
.learn-style-tool {
  background: transparent;
}
.learn-style-preview {
  position: relative;
  min-height: 190px;
  padding: 18px 22px;
  display: grid;
  place-items: center;
  background: var(--surface);
  border: 1px solid #cfcfcf;
  border-radius: 12px;
}
.learn-style-preview > span {
  position: absolute;
  top: 18px;
  left: 22px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}
.learn-style-preview > strong {
  font-size: clamp(48px, 6vw, 78px);
  font-weight: 400;
  line-height: 1;
  transform: translateY(6px);
}
.learn-style-options {
  display: flex;
  margin-top: 12px;
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.learn-style-option {
  position: relative;
  flex: 1 0 110px;
  min-height: 72px;
  padding: 10px 8px;
  border: 0;
  border-right: 1px solid var(--line);
  background: var(--surface);
  text-align: center;
}
.learn-style-option:last-child { border-right: 0; }
.learn-style-option:hover { background: var(--wash); }
.learn-style-option[aria-checked="true"] { box-shadow: inset 0 0 0 2px var(--ink); z-index: 1; }
.learn-style-option[aria-checked="true"]::after {
  content: "✓";
  position: absolute;
  top: 6px;
  right: 6px;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  background: var(--accent);
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
}
.learn-style-option span {
  display: block;
  font-size: 34px;
  line-height: 1.2;
}
.learn-style-option small {
  display: block;
  overflow: hidden;
  color: var(--muted);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.learn-step-split,
.learn-step-check {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(380px, .9fr);
  gap: clamp(36px, 7vw, 88px);
  align-items: center;
}
.learn-step-check {
  display: block;
  align-items: start;
  padding-bottom: 22px;
  border-bottom: 0;
}
.learn-step-check .learn-check-panel {
  margin: 24px 0 0 70px;
}
.learn-letter-demo {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.learn-mini-guide {
  min-width: 0;
  height: 154px;
  padding: 11px 12px 12px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.learn-mini-guide small {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 600;
}
.learn-mini-guide .letter-guide {
  width: 100%;
  height: 116px;
  overflow: visible;
}
.learn-letter-nav {
  margin-top: 18px;
  padding-top: 15px;
  border-top: 1px solid var(--line);
}
.learn-letter-nav-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 11px;
}
.learn-letter-nav-head > strong { font-size: 13px; }
.learn-case-switch {
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.learn-case-switch button {
  min-height: 28px;
  padding: 4px 9px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
}
.learn-case-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--surface);
}
.learn-letter-links {
  display: flex;
  flex-wrap: wrap;
  gap: 3px 7px;
}
.learn-letter-links a {
  width: 25px;
  min-height: 27px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 600;
}
.learn-letter-links a:hover { background: var(--accent); }
.learn-pair-demo {
  display: grid;
  grid-template-columns: 1fr auto 1.45fr auto 1fr;
  align-items: center;
  gap: 12px;
}
.learn-pair-demo div {
  min-height: 142px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.learn-pair-demo div > span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}
.learn-pair-demo strong { font-size: 50px; font-weight: 400; white-space: nowrap; }
.learn-pair-demo i { color: var(--muted); font-style: normal; }
.learn-use-demo {
  display: grid;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.learn-use-demo span {
  min-height: 86px;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  font-size: clamp(38px, 4vw, 55px);
}
.learn-use-demo span:last-child { border-bottom: 0; font-size: clamp(30px, 3.2vw, 45px); }
.learn-checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.learn-checklist li {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  min-height: 0;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}
.learn-checklist li:last-child { border-bottom: 0; }
.learn-check-outcome { background: #fafafa; }
.learn-check-outcome small {
  grid-column: 1 / -1;
  margin-bottom: -10px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.learn-checklist strong,
.learn-checklist span { display: block; }
.learn-checklist span { color: var(--muted); font-size: 13px; line-height: 1.45; }
.learn-check-source {
  max-width: 650px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}
.learn-check-source a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.learn-focus {
  padding: 92px 0;
  background: var(--surface);
}
.learn-focus-grid {
  display: grid;
  grid-template-columns: minmax(280px, .76fr) minmax(0, 1.24fr);
  gap: clamp(56px, 9vw, 128px);
}
.learn-focus-heading { position: sticky; top: 104px; align-self: start; }
.learn-focus-heading p:last-child { max-width: 480px; color: var(--muted); }
.learn-focus-list { border-top: 1px solid var(--line); }
.learn-focus-list article { padding: 27px 0 30px; border-bottom: 1px solid var(--line); }
.learn-focus-list article > span,
.learn-resource-type {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.learn-focus-list h3 { margin: 9px 0 8px; }
.learn-focus-list p { max-width: 680px; margin: 0; color: var(--text-ink); }

.learn-worksheets { padding: 104px 0; }
.learn-worksheet-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}
.learn-worksheet-links a {
  min-height: 260px;
  padding: 30px 30px 26px 0;
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--line);
}
.learn-worksheet-links a + a { padding-left: 30px; border-left: 1px solid var(--line); }
.learn-worksheet-links a:hover { background: var(--surface); }
.learn-worksheet-links h3 { margin: 25px 0 10px; font-size: 27px; }
.learn-worksheet-links p { max-width: 480px; color: var(--muted); }
.learn-worksheet-links strong { margin-top: auto; }

.learn-method-note {
  margin-bottom: 104px;
  padding: 30px 0;
  display: grid;
  grid-template-columns: minmax(150px, .4fr) minmax(0, 1.6fr);
  gap: 48px;
  border-block: 1px solid var(--line);
}
.learn-method-note h2 {
  margin-bottom: 14px;
  font-size: 28px;
}
.learn-method-note p {
  max-width: 780px;
  margin-bottom: 12px;
  color: var(--text-ink);
  line-height: 1.62;
}
.learn-method-note p:last-child { margin-bottom: 0; }
.learn-source-links { color: var(--muted) !important; font-size: 14px; }
.learn-source-links a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

.learn-next { padding: 76px 0; background: var(--surface); border-top: 1px solid var(--line); }
.learn-next-inner { display: flex; align-items: center; justify-content: space-between; gap: 36px; }
.learn-next-inner p { margin: 0; color: var(--muted); }
.learn-next-actions { margin-top: 0; }

@media (max-width: 900px) {
  .learn-hero-grid,
  .learn-foundation-grid,
  .learn-step-choose,
  .learn-step-split,
  .learn-step-check,
  .learn-focus-grid { grid-template-columns: 1fr; }
  .learn-hero-specimen { min-height: 390px; }
  .learn-section-heading,
  .learn-worksheets-heading { grid-template-columns: 1fr; gap: 18px; align-items: start; }
  .learn-focus-heading { position: static; }
}
@media (max-width: 640px) {
  .learn-hero { padding-bottom: 64px; }
  .learn-hero-grid { padding-top: 44px; gap: 38px; }
  .learn-lede { font-size: 17px; }
  .learn-hero-specimen { min-height: 340px; padding: 18px; }
  .learn-guide { min-height: 215px; }
  .learn-guide .letter-guide { height: 215px; }
  .learn-foundation,
  .learn-focus { padding-block: 68px; }
  .learn-line-key > div { grid-template-columns: 1fr; gap: 4px; }
  .learn-method,
  .learn-worksheets { padding-block: 74px; }
  .learn-step { padding-block: 36px; }
  .learn-step-check { padding-bottom: 18px; }
  .learn-step-check .learn-check-panel { margin-left: 48px; }
  .learn-step-copy { grid-template-columns: 38px minmax(0, 1fr); gap: 14px; }
  .learn-step-number { width: 34px; height: 34px; }
  .learn-pair-demo { grid-template-columns: 1fr; }
  .learn-pair-demo i { transform: rotate(90deg); justify-self: center; }
  .learn-worksheet-links { grid-template-columns: 1fr; }
  .learn-letter-demo { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learn-letter-nav-head { align-items: flex-start; flex-direction: column; }
  .learn-method-note { grid-template-columns: 1fr; gap: 12px; margin-bottom: 74px; }
  .learn-checklist li { grid-template-columns: 1fr; gap: 4px; }
  .learn-worksheet-links a,
  .learn-worksheet-links a + a { min-height: 230px; padding: 26px 0; border-left: 0; }
  .learn-next-inner { align-items: flex-start; flex-direction: column; }
  .learn-next-actions { width: 100%; }
  .learn-next-actions .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}