:root {
  --violet: #73054e;
  --violet-deep: #4e0035;
  --violet-soft: #f1e6ed;
  --green: #3c9942;
  --green-dark: #216429;
  --green-soft: #e5f1e2;
  --paper: #fbfaf7;
  --sand: #f2eee4;
  --ink: #211b20;
  --muted: #665e65;
  --line: rgba(115, 5, 78, 0.18);
  --max: 1160px;
  --radius: 1.25rem;
  --shadow: 0 1.25rem 3rem rgba(57, 8, 42, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Roboto, Arial, Helvetica, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { max-width: 100%; }

a { color: inherit; }

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

button { font: inherit; }

:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  border-radius: 0.5rem;
  background: var(--green);
  color: #fff;
  font-weight: 700;
}

.skip-link:focus { top: 1rem; }

.shell {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.96);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.header-inner > .button-row { display: none; }

.brand-link {
  display: inline-flex;
  width: 8.5rem;
  height: 2.85rem;
  flex: 0 0 auto;
  overflow: hidden;
  align-items: center;
}

.brand-link img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.85rem, 2vw, 1.75rem);
  font-size: 0.92rem;
}

.nav-link {
  position: relative;
  padding: 0.8rem 0.15rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-link::after {
  position: absolute;
  right: 0;
  bottom: 0.35rem;
  left: 0;
  height: 2px;
  background: var(--green);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 160ms ease;
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link[aria-current="page"] { color: var(--violet); font-weight: 700; }

.learner-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border: 1px solid var(--violet);
  border-radius: 999px;
  color: var(--violet);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.learner-link:hover { background: var(--violet-soft); }

.menu-button {
  display: none;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0.55rem;
  border: 1px solid var(--violet);
  border-radius: 999px;
  background: transparent;
  color: var(--violet);
  cursor: pointer;
}

.menu-button span,
.menu-button::before,
.menu-button::after {
  display: block;
  width: 1.15rem;
  height: 2px;
  margin: 0.22rem auto;
  background: currentColor;
  content: "";
}

.mobile-nav { display: none; padding-bottom: 1rem; }

.mobile-nav ul {
  display: grid;
  margin: 0;
  padding: 0.5rem 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.mobile-nav a {
  display: block;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(115, 5, 78, 0.1);
  text-decoration: none;
}

.mobile-nav a[aria-current="page"] { color: var(--violet); font-weight: 700; }

.js .mobile-nav[hidden] { display: none; }

.no-js .mobile-nav { display: block; }
.no-js .mobile-nav[hidden] { display: block; }
.no-js .menu-button { display: none; }

.hero {
  position: relative;
  overflow: hidden;
  background: var(--violet);
  color: #fff;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  min-height: 31rem;
  grid-template-columns: minmax(0, 1.15fr) minmax(15rem, 0.85fr);
  align-items: center;
  gap: clamp(2rem, 8vw, 7rem);
  padding-block: clamp(4.25rem, 9vw, 8rem);
}

.hero-copy { max-width: 45rem; }

.eyebrow,
.section-kicker {
  margin: 0 0 1rem;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1.2;
  text-transform: uppercase;
}

.hero .eyebrow { color: #bfe2bd; }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  color: var(--violet);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.hero h1 {
  max-width: 12ch;
  margin-bottom: 1.5rem;
  color: #fff;
  font-size: clamp(2.55rem, 7vw, 5.8rem);
}

.hero .lede {
  max-width: 38rem;
  margin-bottom: 2rem;
  color: rgba(255,255,255,0.9);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

.hero.compact-editorial-hero .hero-inner {
  min-height: auto;
  grid-template-columns: minmax(0, 1fr);
  padding-block: clamp(2.5rem, 4vw, 3.5rem);
}

.hero.compact-editorial-hero .hero-copy { max-width: 64rem; }
.hero.compact-editorial-hero h1 { max-width: 24ch; font-size: clamp(2.8rem, 6vw, 5rem); }
.hero.compact-editorial-hero .lede { max-width: 62rem; }

.hero-art {
  display: grid;
  min-height: 13rem;
  place-items: center;
  justify-items: start;
  padding: 2rem 0 2rem clamp(1.5rem, 4vw, 3.5rem);
  border-left: 1px solid rgba(255,255,255,0.32);
}

.hero-art img {
  width: min(17rem, 88%);
  height: auto;
}

.hero-art p {
  margin: 1rem 0 0;
  color: #fff;
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  font-weight: 700;
}

.editorial-hero-art {
  align-items: center;
  border-left: 0;
}

.editorial-hero-art p {
  display: grid;
  margin: 0;
  color: #fff;
  font-size: clamp(2.1rem, 5vw, 4.8rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 0.96;
}

.editorial-hero-art p span:nth-child(2) { color: #bfe2bd; }

.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; }

.button,
.text-link {
  display: inline-flex;
  min-height: 2.85rem;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  text-decoration: none;
}

.button {
  padding: 0.7rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
}

.button-primary { background: var(--violet); color: #fff; }
.button-primary:hover,
.button-primary:active { background: var(--violet-deep); }
.button-ghost { border-color: currentColor; color: inherit; }
.button-ghost:hover { background: rgba(255,255,255,0.1); }
.button-dark { background: var(--violet); color: #fff; }
.button-dark:hover { background: var(--violet-deep); }

.text-link { color: var(--violet); }
.text-link::after { content: "↗"; font-size: 1.1em; }
.text-link:hover { color: var(--green-dark); }

.section { padding-block: clamp(4rem, 9vw, 8rem); }
.section-sand { background: var(--sand); }
.section-soft { background: var(--violet-soft); }
.section-green { background: var(--green-soft); }

.section-grid {
  display: grid;
  grid-template-columns: minmax(11rem, 0.55fr) minmax(0, 1.45fr);
  gap: clamp(2rem, 8vw, 7rem);
}

.section-intro { max-width: 30rem; }

.section h2 {
  max-width: 18ch;
  margin-bottom: 1.35rem;
  font-size: clamp(2rem, 4vw, 4rem);
}

.section h3 {
  margin-bottom: 0.7rem;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.section p { max-width: 48rem; }

.large-copy {
  max-width: 42rem;
  color: var(--violet);
  font-size: clamp(1.45rem, 3vw, 2.65rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.muted { color: var(--muted); }
.small { font-size: 0.9rem; }

.stat-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 2rem 0;
  border-block: 1px solid var(--line);
}

.stat {
  min-width: 0;
  flex: 1 1 9rem;
  padding: 1.25rem 1rem;
  border-right: 1px solid var(--line);
  text-align: center;
}

.stat:last-child { border-right: 0; }
.stat strong { display: block; color: var(--violet); font-size: 1.75rem; line-height: 1.1; }
.stat span { color: var(--muted); font-size: 0.88rem; }

.loop {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-block: 1.5rem;
  color: var(--violet);
  font-weight: 800;
  letter-spacing: 0.05em;
}

.loop span { display: inline-flex; align-items: center; gap: 0.65rem; }
.loop span:not(:last-child)::after { color: var(--green); content: "→"; }

.demo-box {
  margin-top: 2rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.58);
  box-shadow: var(--shadow);
}

.demo-box h3 { margin-bottom: 0.5rem; }
.demo-box > p:last-child { margin-bottom: 0; }

.demo-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.25rem 0;
}

.demo-control {
  min-height: 2.75rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--violet);
  cursor: pointer;
}

.demo-control[aria-pressed="true"],
.demo-control:hover { background: var(--violet); color: #fff; }

.demo-result {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.demo-result p { margin: 0; }
.demo-result .translation { color: var(--violet); font-size: clamp(1.3rem, 3vw, 2.1rem); font-weight: 700; }
.demo-result .answer { color: var(--green-dark); font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; }
.demo-static { display: grid; gap: 0.55rem; margin: 1rem 0 0; }
.demo-static div { display: flex; justify-content: space-between; gap: 1rem; padding-top: 0.55rem; border-top: 1px solid rgba(115,5,78,0.1); }
.js .demo-static { display: none; }

.combination-question {
  margin-bottom: 0.75rem;
  color: var(--violet);
  font-weight: 700;
}

.combination-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.25rem;
}

.combination-control {
  min-height: 2.75rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--violet);
  border-radius: 0.4rem;
  background: transparent;
  color: var(--violet);
  cursor: pointer;
  font-weight: 700;
}

.combination-control[aria-pressed="true"],
.combination-control:hover { background: var(--violet); color: #fff; }

.combination-panel { padding-top: 1rem; border-top: 1px solid var(--line); }
.combination-panel p { margin-bottom: 0; }
.combination-panel[hidden] { display: none; }

.combination-label {
  margin-bottom: 0.75rem !important;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.combination-words {
  color: var(--violet);
  font-size: clamp(1.15rem, 2.4vw, 1.7rem);
  font-weight: 700;
  line-height: 1.7;
}

.combination-mapping {
  margin: 0.25rem 0 1.5rem;
  border-top: 1px solid var(--line);
}

.combination-pair {
  display: grid;
  grid-template-columns: minmax(10rem, 0.8fr) minmax(0, 1.2fr);
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.combination-pair span { color: var(--muted); }
.combination-pair strong { color: var(--violet); }
.combination-full { margin-top: 1.25rem; color: var(--violet); font-size: clamp(1.25rem, 2.7vw, 1.95rem); font-weight: 700; }

.lexical-note {
  margin-top: 1.5rem;
  padding: 1.25rem 1.5rem;
  border-left: 0.35rem solid var(--green);
  background: var(--green-soft);
}

.lexical-note p:last-child { margin-bottom: 0; }

.speaking-note {
  max-width: 38rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

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

.lesson-selector {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 2rem 0 1.25rem;
}

.lesson-stage {
  min-height: 3.25rem;
  padding: 0.55rem 0.45rem;
  border: 1px solid var(--violet);
  border-radius: 0.35rem;
  background: transparent;
  color: var(--violet);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.lesson-stage[aria-pressed="true"],
.lesson-stage:hover { background: var(--violet); color: #fff; }

.lesson-panels { min-height: 10rem; }
.lesson-panel { padding: clamp(1.25rem, 3vw, 2rem); border-left: 0.35rem solid var(--green); background: var(--violet-soft); }
.lesson-panel[hidden] { display: none; }
.lesson-panel h3 { margin-bottom: 0.6rem; }
.lesson-panel p:last-child { margin-bottom: 0; }

.flow-grid,
.principle-grid,
.process-grid,
.status-list,
.level-grid {
  display: grid;
  gap: 1rem;
}

.flow-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.flow-step {
  position: relative;
  min-height: 8rem;
  padding: 1rem 1.4rem 0 0;
  border-top: 3px solid var(--green);
}

.flow-step strong { display: block; color: var(--violet); font-size: 1.15rem; }
.flow-step:not(:last-child)::after { position: absolute; top: 0.8rem; right: 0.15rem; color: var(--green); content: "→"; font-size: 1.4rem; }

.quote-block {
  padding: clamp(1.5rem, 5vw, 3rem);
  border-left: 0.35rem solid var(--green);
  background: #fff;
}

.quote-block p:last-child { margin-bottom: 0; }

.process-grid {
  max-width: 42rem;
  margin: 1.75rem 0;
  padding: 0;
  counter-reset: curriculum-step;
  list-style: none;
}

.process-step {
  position: relative;
  counter-increment: curriculum-step;
  min-height: 0;
  padding: 0.75rem 0 1.35rem 3.25rem;
  color: var(--violet);
  font-weight: 700;
}

.process-step::before {
  position: absolute;
  top: 0.65rem;
  left: 0;
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid var(--green);
  border-radius: 50%;
  color: var(--green-dark);
  content: counter(curriculum-step, decimal-leading-zero);
  font-size: 0.78rem;
  font-weight: 800;
}

.process-step:not(:last-child)::after {
  position: absolute;
  top: 2.75rem;
  bottom: 0;
  left: 0.95rem;
  width: 1px;
  background: var(--green);
  content: "";
}

.editorial-context-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 1.75rem;
}

.editorial-context {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.editorial-context h3 {
  margin-bottom: 0.45rem;
  color: var(--violet);
  font-size: 1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.editorial-context p { margin-bottom: 0; }

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

.principle {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.principle-number { color: var(--green-dark); font-weight: 800; letter-spacing: 0.08em; }
.principle h3 { margin-top: 0.6rem; }

.status-list { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 2rem 0 0; }

.status-item {
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.status-item dt { color: var(--muted); font-size: 0.8rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }
.status-item dd { margin: 0.25rem 0 0; color: var(--violet); font-weight: 700; }

.path-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  margin-block: 1.5rem;
  color: var(--violet);
  font-size: clamp(1.4rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.path-ribbon span:not(:last-child)::after { margin-left: 0.55rem; color: var(--green); content: "→"; }

.progression-list {
  display: grid;
  gap: 0;
  margin: 2rem 0 0;
  padding: 0;
  border-left: 2px solid var(--green);
  list-style: none;
}

.progression-list li {
  position: relative;
  padding: 1rem 1rem 1rem 1.5rem;
  color: var(--violet);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 700;
}

.progression-list li::before {
  position: absolute;
  top: 1.45rem;
  left: -0.46rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.path-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 2rem 0 1.5rem;
}

.path-tab {
  min-width: 4.25rem;
  min-height: 3rem;
  padding: 0.65rem 1rem;
  border: 1px solid var(--violet);
  border-radius: 999px;
  background: transparent;
  color: var(--violet);
  font-weight: 800;
  cursor: pointer;
}

.path-tab[aria-pressed="true"] {
  background: var(--violet);
  color: #fff;
  box-shadow: inset 0 -0.22rem 0 var(--green);
}

.path-tab:hover { background: var(--violet); color: #fff; }

.path-panel { padding-top: 1.5rem; border-top: 1px solid var(--line); }
.js .path-panel { display: none; }
.js .path-panel.is-active { display: block; }

.path-panel h3 { margin-bottom: 0.35rem; }
.level-grid { margin-top: 2rem; }

.level-item {
  border-top: 1px solid var(--line);
}

.level-item summary {
  display: flex;
  min-height: 4.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
  color: var(--violet);
  cursor: pointer;
  list-style: none;
}

.level-item summary::-webkit-details-marker { display: none; }
.level-item summary::after { color: var(--green-dark); content: "+"; font-size: 1.5rem; font-weight: 400; }
.level-item[open] summary::after { content: "−"; }
.level-item summary strong { display: block; font-size: 1.35rem; line-height: 1.2; }
.level-number { display: block; margin-bottom: 0.2rem; color: var(--green-dark); font-size: 0.74rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.level-description { display: block; margin-top: 0.3rem; color: var(--muted); font-size: 0.95rem; font-weight: 400; line-height: 1.35; }
.level-body { padding: 0 2.5rem 1.25rem 0; }
.level-body p { margin-bottom: 0.8rem; }
.level-body ul { margin: 0; padding-left: 1.2rem; }

.faq-list { max-width: 52rem; }
.faq-group { margin-bottom: 3rem; }
.faq-group h2 { max-width: none; margin-bottom: 1rem; font-size: clamp(1.4rem, 2.4vw, 2rem); letter-spacing: -0.02em; }

.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }

.faq-item summary {
  display: flex;
  min-height: 4rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  color: var(--violet);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { flex: 0 0 auto; color: var(--green-dark); content: "+"; font-size: 1.5rem; font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding: 0 2.5rem 1.2rem 0; }
.faq-answer p:last-child { margin-bottom: 0; }

.privacy-section { padding-block: clamp(3.5rem, 7vw, 6rem); }
.privacy-document { max-width: 58rem; margin-inline: auto; }
.privacy-document .document-title {
  margin-bottom: 0.35rem;
  color: var(--violet);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.privacy-document .document-updated { margin-bottom: 3rem; color: var(--muted); }
.privacy-block { padding-top: 2.5rem; border-top: 1px solid var(--line); }
.privacy-block + .privacy-block { margin-top: 2.5rem; }
.privacy-block h2 { max-width: none; margin-bottom: 1rem; font-size: clamp(1.45rem, 2.8vw, 2.15rem); letter-spacing: -0.025em; }
.privacy-block ul { max-width: 48rem; margin: 0 0 1.25rem; padding-left: 1.35rem; }
.privacy-block li { padding-left: 0.25rem; }
.privacy-block li + li { margin-top: 0.35rem; }
.privacy-document a { color: var(--violet); font-weight: 700; }

.access-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  border-radius: var(--radius);
  background: var(--violet);
  color: #fff;
}

.access-panel h2 { margin-bottom: 0.5rem; color: #fff; font-size: clamp(1.55rem, 3vw, 2.6rem); }
.access-panel p { margin-bottom: 0; color: rgba(255,255,255,0.86); }
.access-panel .button-ghost:hover { background: rgba(255,255,255,0.16); }

.site-footer { padding-block: 3rem 1.5rem; background: var(--violet); color: rgba(255,255,255,0.8); }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 3rem; align-items: start; }
.footer-brand { display: grid; gap: 1rem; max-width: 22rem; }
.footer-brand .brand-link { width: 8.5rem; }
.footer-brand p { margin-bottom: 0; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(8rem, 1fr)); gap: 0.45rem 2rem; }
.footer-nav a { color: #fff; text-decoration: none; }
.footer-nav a:hover { color: #bfe2bd; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; margin-top: 3rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.2); font-size: 0.84rem; }

.not-found { min-height: 70vh; display: grid; align-items: center; }
.not-found h1 { max-width: 8ch; font-size: clamp(3rem, 8vw, 6rem); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 800px) {
  .desktop-nav { display: none; }
  .menu-button { display: inline-block; }
  .header-inner > .button-row { display: flex; }
  .js .mobile-nav { display: block; }
  .js .mobile-nav[hidden] { display: none; }
  .hero-inner { grid-template-columns: 1fr; min-height: auto; gap: 2rem; }
  .hero-art { min-height: 12rem; max-width: 21rem; }
  .section-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .section-intro { max-width: 42rem; }
  .section h2 { max-width: 22ch; }
  .flow-grid,
  .process-grid { grid-template-columns: 1fr; }
  .flow-step { min-height: 0; padding-right: 0; padding-bottom: 1.9rem; }
  .flow-step:not(:last-child)::after { top: auto; right: auto; bottom: 0.35rem; left: 0; content: "↓"; }
  .process-step:not(:last-child)::after { top: 2.75rem; right: auto; bottom: 0; left: 0.95rem; }
  .lesson-selector { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .access-panel { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 560px) {
  .shell { width: min(var(--max), calc(100% - 2rem)); }
  .site-header { position: relative; }
  .brand-link { width: 7.6rem; height: 2.55rem; }
  .header-inner { min-height: 4.25rem; }
  .learner-link { min-height: 2.6rem; padding-inline: 0.85rem; font-size: 0.86rem; }
  .hero-inner { padding-block: 4rem 4.5rem; }
  .hero h1 { max-width: 9ch; font-size: clamp(2.65rem, 13vw, 4.5rem); }
  .hero.compact-editorial-hero .hero-inner { padding-block: 3rem 3.5rem; }
  .hero.compact-editorial-hero h1 { max-width: 20ch; font-size: clamp(2.45rem, 12vw, 4rem); }
  .hero-art { min-height: 9rem; padding: 1.25rem 0; border-left: 0; }
  .hero-art img { width: 13rem; }
  .editorial-hero-art { min-height: 10rem; padding-block: 0.5rem; }
  .editorial-hero-art p { font-size: clamp(2.35rem, 13vw, 4rem); }
  .button-row { align-items: stretch; flex-direction: column; }
  .button-row .button { justify-content: center; }
  .section { padding-block: 4rem; }
  .section h2 { font-size: clamp(2rem, 11vw, 3.1rem); }
  .flow-grid, .principle-grid, .process-grid, .status-list { grid-template-columns: 1fr; }
  .editorial-context-grid { grid-template-columns: 1fr; }
  .combination-pair { grid-template-columns: 1fr; gap: 0.25rem; }
  .stat-line { display: grid; grid-template-columns: repeat(2, 1fr); }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .stat:nth-child(odd) { border-right: 1px solid var(--line); }
  .stat:nth-last-child(-n+2) { border-bottom: 0; }
  .demo-result { grid-template-columns: 1fr; gap: 0.25rem; }
  .demo-static div { align-items: flex-start; flex-direction: column; gap: 0.1rem; }
  .path-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .path-tab { min-width: 0; padding-inline: 0.5rem; }
  .level-item summary strong { max-width: 15ch; }
  .level-description { max-width: 23ch; }
  .level-body { padding-right: 0; }
  .lesson-selector { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .faq-item summary { align-items: flex-start; }
  .faq-answer { padding-right: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-nav { grid-template-columns: repeat(2, minmax(7rem, 1fr)); }
  .footer-bottom { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}

@media (min-width: 801px) {
  .no-js .mobile-nav { display: none; }
}

/* /como-voce-aprende/ route-specific presentation */
.learning-context-link::after { content: none; }
.learning-context-link-row { margin-top: 1.5rem; }

.learning-page .learning-hero .hero-inner {
  padding-block: clamp(3.5rem, 7vw, 6rem);
}

.learning-page .learning-hero h1 {
  max-width: 23ch;
  font-size: clamp(2.8rem, 6vw, 5rem);
}

.learning-page .learning-hero .lede { max-width: 58rem; }

.learning-reassurance {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
  margin: 0 0 1.75rem;
  color: rgba(255,255,255,0.9);
  font-weight: 700;
}

.learning-reassurance p { margin: 0; }
.learning-hero-action { color: #fff; }
.learning-page .learning-section h2 { max-width: 20ch; }
.learning-page .learning-section p { max-width: 52rem; }

.learning-reveal-list,
.learning-example-stack {
  display: grid;
  gap: 0;
  margin: 1.75rem 0 2rem;
}

.learning-reveal {
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
}

.learning-reveal:last-child { border-bottom: 1px solid var(--line); }

.learning-example {
  margin-bottom: 0.9rem;
  color: var(--violet);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 700;
}

.learning-reveal-slot { display: inline-block; min-width: 5.5ch; }
.learning-blank { color: var(--green-dark); letter-spacing: 0.08em; }
.learning-progressive-answer { color: var(--violet); }
.no-js .learning-blank { display: none; }
.js .learning-reveal:not(.is-revealed) .learning-progressive-answer { display: none; }
.js .learning-reveal.is-revealed .learning-blank { display: none; }
.js .learning-reveal.is-revealed .learning-progressive-answer { display: inline; }
.no-js .learning-reveal-trigger { display: none; }

.learning-reveal-trigger {
  min-height: 2.75rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--violet);
  border-radius: 999px;
  background: transparent;
  color: var(--violet);
  cursor: pointer;
  font-weight: 700;
}

.learning-reveal-trigger:hover,
.learning-reveal-trigger:focus-visible {
  background: var(--violet);
  color: #fff;
}

.learning-support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.learning-label {
  margin-bottom: 0.7rem !important;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.learning-inline-list,
.learning-example-list,
.learning-utterance-list {
  margin: 0;
  padding-left: 1.2rem;
}

.learning-inline-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.35rem 1.4rem; padding-left: 0; list-style: none; }
.learning-example-list li + li { margin-top: 0.35rem; }
.learning-pattern { margin: 0 0 0.8rem; color: var(--violet); font-size: clamp(1.25rem, 2.7vw, 1.8rem); font-weight: 700; }
.learning-utterances { margin-top: 2rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.learning-utterance-list { columns: 2; }
.learning-utterance-list li { break-inside: avoid; }

.learning-subblock { margin: 1.75rem 0 2rem; }

.learning-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0.8rem 0 1.25rem;
}

.learning-selector-button {
  min-height: 2.75rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--violet);
  border-radius: 999px;
  background: transparent;
  color: var(--violet);
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.learning-selector-button[aria-pressed="true"] {
  background: var(--violet);
  color: #fff;
  box-shadow: inset 0 -0.22rem 0 var(--green);
}

.learning-selector-button:hover { background: var(--violet-soft); }
.learning-selector-button[aria-pressed="true"]:hover { background: var(--violet-deep); }

.learning-focal-panel,
.learning-context-panel {
  padding: 0.9rem 0;
  border-top: 1px solid var(--line);
}

.learning-context-panel h3 { margin-bottom: 0.4rem; color: var(--green-dark); font-size: 0.85rem; letter-spacing: 0.1em; }
.learning-context-panel p { margin-bottom: 0; }
.learning-context-concept { margin: 0.25rem 0 0.8rem !important; color: var(--violet); font-size: clamp(1.35rem, 3vw, 2rem); font-weight: 800; letter-spacing: 0.06em; }

.learning-pair {
  display: grid;
  grid-template-columns: minmax(10rem, 0.9fr) minmax(0, 1.1fr);
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}

.learning-pair:first-child { border-top: 1px solid var(--line); }
.learning-pair span { color: var(--muted); overflow-wrap: anywhere; }
.learning-pair strong { color: var(--violet); overflow-wrap: anywhere; }
.learning-chunk { padding-inline: 0.12em; border-bottom: 0.14rem solid var(--green); background: transparent; color: inherit; font-weight: 800; text-decoration: underline; text-decoration-thickness: 0.08em; text-underline-offset: 0.16em; }

.learning-pattern-block { margin-bottom: 1.5rem; }
.learning-lexical-list { margin: 1rem 0 1.5rem; border-top: 1px solid var(--line); }
.learning-lexical-list div { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1rem; padding: 0.8rem 0; border-bottom: 1px solid var(--line); }
.learning-lexical-list strong { color: var(--violet); overflow-wrap: anywhere; }
.learning-lexical-list span { color: var(--muted); }

.learning-recombination-output {
  margin: 1.5rem 0 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line);
  color: var(--violet);
  font-size: clamp(1.25rem, 2.7vw, 1.95rem);
  font-weight: 700;
}

.js .learning-recombination-output { display: none; }
.js .learning-recombination.is-revealed .learning-recombination-output { display: block; }

.learning-grammar-grid { max-width: 42rem; margin-bottom: 1.5rem; }
.learning-noticing-block { margin-top: 2.25rem; }
.learning-theory-bridge { margin-top: 1.5rem; color: var(--muted); }
.learning-can-do-example { display: block; max-width: 34rem; margin-top: 0.5rem; color: var(--ink); font-size: 1rem; font-weight: 600; letter-spacing: 0; line-height: 1.4; }

.learning-flow {
  display: grid;
  max-width: 42rem;
  margin: 1.25rem 0 1.5rem;
}

.learning-flow > div {
  position: relative;
  padding: 0.9rem 0 0.6rem;
  border-top: 3px solid var(--green);
  color: var(--violet);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.learning-flow > div:not(:last-child)::after {
  position: static;
  display: block;
  width: 1.5rem;
  margin-top: 0.35rem;
  color: var(--green);
  content: "↓";
  font-size: 1.4rem;
}

.learning-curriculum-flow { margin-top: 1.75rem; }
.learning-flow-compact { margin-top: 2.5rem; }
.learning-flow-compact > div { padding-bottom: 1rem; }
.learning-flow-compact > div:not(:last-child)::after { bottom: auto; right: auto; }

.learning-link-row { margin-top: 1.5rem; }
.learning-theory { max-width: 52rem; }

.learning-theory-disclosure {
  margin-top: 1.75rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.learning-theory-disclosure summary {
  display: flex;
  min-height: 3.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--violet);
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.learning-theory-disclosure summary::-webkit-details-marker { display: none; }
.learning-theory-disclosure summary::after { color: var(--green-dark); content: "+"; font-size: 1.5rem; font-weight: 400; }
.learning-theory-disclosure[open] summary::after { content: "−"; }
.learning-theory-disclosure > div { padding: 0 2.5rem 1.25rem 0; }
.learning-theory-disclosure ul { margin: 0; padding-left: 1.2rem; }
.learning-reference-block { margin: 1.25rem 0; padding: 1rem 0; border-block: 1px solid var(--line); }
.learning-reference-block p { margin-bottom: 0.9rem; }
.learning-reference-block p:last-child { margin-bottom: 0; }
.learning-end-links { display: flex; flex-wrap: wrap; gap: 0.9rem 2rem; margin-top: 2rem; }

@media (max-width: 800px) {
  .learning-support-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .learning-context-panel { margin-top: 0; }
}

@media (max-width: 560px) {
  .learning-page .learning-hero h1 { max-width: 20ch; }
  .learning-reassurance { display: grid; gap: 0.25rem; }
  .learning-inline-list { grid-template-columns: 1fr; }
  .learning-utterance-list { columns: 1; }
  .learning-pair { grid-template-columns: 1fr; gap: 0.25rem; }
  .learning-lexical-list div { align-items: flex-start; flex-direction: column; gap: 0.15rem; }
  .learning-theory-disclosure > div { padding-right: 0; }
  .learning-end-links { align-items: flex-start; flex-direction: column; }
}