/* Bundled Unicode supporting face: avoids incorrect local Arial substitutions. */
@font-face {
  font-family: "Noto Sans";
  src: url("assets/fonts/NotoSans-Variable.ttf") format("truetype");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}
:root {
  --bg: var(--acentio-paper);
  --ink: var(--acentio-ink);
  --surface: var(--acentio-supporting-surface);
  --muted: var(--acentio-light-secondary-text);
  --periwinkle: var(--acentio-periwinkle);
  --apricot: var(--acentio-apricot);
  --citron: var(--acentio-citron);
  --coral: var(--acentio-coral);
  --font: "Noto Sans", var(--acentio-font);
  --small: 14px;
  --body: clamp(17px, 1.35vw, 20px);
  --lead: clamp(24px, 2.15vw, 32px);
  --heading: clamp(40px, 5.5vw, 80px);
  --display: clamp(72px, 8vw, 136px);
  --margin: clamp(20px, 3.3vw, 64px);
  --gutter: 8px;
  --ease: var(--acentio-ease);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: var(--body)/1.5 var(--font); -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; }
img { max-width: 100%; height: auto; display: block; }
figure, h1, h2, h3, p { margin: 0; }
h1, h2, h3 { letter-spacing: var(--acentio-heading-tracking); line-height: 1.05; font-weight: 700; text-wrap: balance; }
h2 { font-size: var(--heading); }
p { max-width: 58ch; }
.wrap { padding-inline: var(--margin); }
.chapter { scroll-margin-top: 0; }
::selection { background: var(--citron); color: var(--ink); }
:focus-visible { outline: 3px solid var(--acentio-focus-on-light); outline-offset: 6px; }
.skip { position: fixed; top: -100px; left: 20px; z-index: 10; background: var(--citron); padding: 16px 24px; }
.skip:focus { top: 12px; }
.button { min-height: 56px; border: 0; border-radius: 0; padding: 16px 24px; display: inline-flex; justify-content: space-between; align-items: center; gap: 32px; font-size: var(--body); line-height: 1.2; transition: transform var(--acentio-motion-feedback) var(--ease); }
.control-icon { width: 24px; height: 24px; flex: 0 0 24px; }
.button:active { transform: scale(.98); }
.button-lime { color: var(--acentio-action-text); background: var(--acentio-action-surface); }
.button-dark { color: var(--bg); background: var(--ink); }
.button-soft { color: var(--ink); background: var(--surface); }
.hero { background: var(--bg); padding-bottom: 48px; }
.navigation { min-height: 128px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { width: 240px; flex: 0 0 auto; }
.navigation nav { display: flex; gap: 32px; align-items: center; }
.navigation nav a { min-height: 44px; display: flex; align-items: center; font-size: var(--body); }
.hero-composition { display: grid; grid-template-columns: 1.16fr 1fr; gap: 48px; align-items: center; padding-top: 16px; }
.hero-copy { padding-block: 40px; }
h1 { font-size: var(--display); line-height: 1.02; }
.line, .line > span { display: block; }
.hero-copy p { margin-top: 32px; max-width: 31ch; }
.hero-copy > .button { margin-top: 32px; }
.hero-product { background: var(--periwinkle); height: clamp(540px, 46vw, 680px); position: relative; overflow: hidden; }
.hero-phone { position: absolute; height: 85%; width: auto; max-width: 76%; object-fit: contain; right: 8%; top: 5%; border-radius: 32px; }
.hero-app { position: absolute; left: 7%; bottom: 13%; width: 112px; z-index: 1; }
.hero-app img { border-radius: 23%; }
.hero-app span { display: block; margin-top: 12px; font-size: var(--small); line-height: 1.4; }
.hero-caption { position: absolute; bottom: 24px; left: 7%; right: 24px; font-size: var(--small); }
.identity { background: var(--bg); padding: var(--gutter); }
.identity-board { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-template-rows: repeat(2, minmax(280px, 24vw)); gap: var(--gutter); }
.identity-main { grid-column: 1 / 9; grid-row: 1 / 3; background: var(--ink); color: var(--bg); overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; padding: 48px var(--margin) 24px; gap: 32px; }
.identity-main h2 { font-size: clamp(72px, 8vw, 120px); }
.identity-signature { width: 100%; margin-top: auto; }
.identity-word { grid-column: 9 / 13; background: var(--citron); display: flex; flex-direction: column; justify-content: flex-end; padding: 32px; overflow: hidden; }
.identity-word > span { font-weight: 700; font-size: clamp(72px, 10vw, 152px); letter-spacing: var(--acentio-heading-tracking); line-height: 1.05; }
.identity-word p { margin-top: 16px; }
.identity-screen { grid-column: 9 / 13; background: var(--apricot); overflow: hidden; padding: 24px 32px 0; }
.identity-screen img { width: auto; height: 100%; max-width: 100%; object-fit: contain; margin: 0 auto; }
.identity-copy { padding-block: 96px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.identity-copy .identity-intro { font-size: var(--lead); line-height: 1.2; }
.identity-copy p:last-child { font-size: var(--body); max-width: 47ch; }
.try { background: var(--apricot); padding-block: 80px; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 7vw, 112px); align-items: center; }
.practice-preview { min-height: 540px; background: var(--bg); padding: 32px; display: flex; flex-direction: column; align-items: center; }
.preview-top, .preview-bottom { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; font-size: var(--small); }
.practice-presence { width: 96px; border-radius: 23%; margin: 40px auto 32px; }
.preview-phrase { font-size: clamp(30px, 3vw, 44px); letter-spacing: var(--acentio-heading-tracking); line-height: 1.15; text-align: center; max-width: 18ch; }
.preview-translation { margin-top: 16px; font-size: var(--body); text-align: center; }
.preview-state { font-size: var(--small); margin: 40px 0 32px; min-height: 21px; text-align: center; }
.preview-bottom { margin-top: auto; }
.try-content { align-self: stretch; display: flex; flex-direction: column; justify-content: space-between; gap: 40px; }
.languages { display: flex; gap: 24px; flex-wrap: wrap; }
.languages button { border: 0; padding: 8px 0; min-height: 44px; background: transparent; font-size: var(--body); }
.languages button[aria-pressed="true"] { text-decoration: underline; text-decoration-thickness: 3px; text-underline-offset: 8px; font-weight: 700; }
.try-description h2 { margin-bottom: 24px; font-size: clamp(40px, 4.3vw, 64px); }
.try-description > p { max-width: 32ch; }
.slow-control { display: flex; align-items: center; gap: 12px; margin-top: 24px; min-height: 44px; width: fit-content; }
.slow-control input { width: 24px; height: 24px; accent-color: var(--ink); margin: 0; }
.demo-note { margin-top: 24px; font-size: var(--small); max-width: 43ch; }
.demo-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.journey { background: var(--bg); }
.journey > h2 { padding-top: 80px; padding-bottom: 56px; }
.journey-fields { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.journey-field { padding: 32px 24px 40px; display: flex; flex-direction: column; gap: 40px; }
.field-blue { background: var(--periwinkle); }
.field-apricot { background: var(--apricot); }
.field-lime { background: var(--citron); }
.field-paper { background: var(--surface); }
.phone-image { max-width: 260px; width: 100%; margin-inline: auto; overflow: hidden; border-radius: 24px; }
.phone-image img { width: 100%; }
.journey-field figcaption { font-size: var(--lead); line-height: 1.15; letter-spacing: -.025em; }
.questions-heading { background: var(--bg); padding-top: 96px; padding-bottom: 56px; }
.question-band { display: grid; grid-template-columns: 5fr 6fr; gap: 8.333%; padding-block: 48px; background: var(--bg); }
.question-band:nth-child(odd) { background: var(--surface); }
.question-band h3 { align-self: start; font-size: var(--lead); line-height: 1.15; }
.question-band p { max-width: 52ch; }
.footer { background: var(--ink); padding: 8px; }
.footer-top { display: grid; grid-template-columns: 6fr 3fr 3fr; gap: 8px; margin-bottom: 8px; }
.footer-statement { background: var(--bg); padding: var(--margin); display: flex; flex-direction: column; justify-content: space-between; gap: 48px; }
.footer-statement > p:first-child { font-size: var(--lead); line-height: 1.2; }
.footer-statement .release-note { font-size: var(--small); max-width: 34ch; }
.footer-navigation { background: var(--periwinkle); display: flex; flex-direction: column; justify-content: center; padding: 32px; gap: 8px; }
.footer-navigation a { min-height: 44px; display: flex; align-items: center; }
.footer-detail { background: var(--coral); height: 320px; overflow: hidden; padding: 32px 24px 0; }
.footer-detail img { width: 84%; margin-inline: auto; }
.footer-bottom { display: grid; grid-template-columns: 8fr 4fr; gap: 8px; }
.footer-logo { min-height: 320px; display: flex; align-items: center; justify-content: center; padding: 48px; }
.footer-logo img { width: 100%; }
.footer-cta { background: var(--citron); padding: var(--margin); display: flex; flex-direction: column; justify-content: space-between; font-size: var(--lead); line-height: 1.15; }
.big-arrow { align-self: flex-end; width: clamp(88px, 10vw, 144px); height: auto; transition: transform var(--acentio-motion-transition) var(--ease); }
.identity-main :focus-visible, .footer-logo :focus-visible { outline-color: var(--acentio-focus-on-dark); }
@media (hover: hover) and (pointer: fine) {
  nav a:hover { text-decoration: underline; text-underline-offset: 6px; }
  .button:hover { transform: translateY(-2px); }
  .footer-cta:hover .big-arrow { transform: translate(4px, -4px); }
}
@media (prefers-reduced-motion: no-preference) {
  .hero-copy, .hero-product { animation: settle var(--acentio-motion-brand) var(--ease); }
  .motion-ready [data-reveal] { transform: translateY(16px); transition: transform var(--acentio-motion-brand) var(--ease); }
  .motion-ready [data-reveal].is-in { transform: none; }
  .speaking .practice-presence { animation: voice-breath 4s ease-in-out infinite alternate; }
}
@keyframes settle { from { transform: translateY(16px); } to { transform: none; } }
@keyframes voice-breath { from { transform: scale(.99); } to { transform: scale(1.01); } }
@media (max-width: 1100px) {
  :root { --display: 7.4vw; }
  .navigation { gap: 24px; }
  .navigation nav { gap: 24px; }
  .brand { width: 216px; }
  .hero-composition { grid-template-columns: 1.1fr 1fr; gap: 32px; }
  .hero-product { height: 540px; }
  .hero-phone { right: 6%; max-width: 78%; height: 80%; }
  .hero-app { width: 88px; bottom: 15%; left: 6%; }
  .identity-board { grid-template-rows: repeat(2, 280px); }
  .identity-main { padding: 40px 32px 24px; }
  .demo-actions { grid-template-columns: 1fr; }
  .try { gap: 40px; }
  .journey-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .journey-field { padding: 32px; }
  .footer-navigation { padding: 24px; }
  .footer-detail { padding-inline: 16px; }
}
@media (max-width: 900px) {
  .navigation { flex-wrap: wrap; padding-top: 8px; padding-bottom: 16px; gap: 0 24px; }
  .navigation nav { order: 3; width: 100%; gap: 32px; }
  .navigation .button { min-height: 48px; }
  .hero-app span { display: none; }
  .hero-product { height: 500px; }
  .hero-app { width: 80px; bottom: 14%; }
  .identity-copy { gap: 40px; }
  .practice-preview { min-height: 540px; padding: 24px; }
  .preview-bottom span:last-child { display: none; }
  .languages { gap: 20px; }
  .footer-top { grid-template-columns: 6fr 4fr; }
  .footer-detail { display: none; }
}
@media (max-width: 700px) {
  :root { --display: 15.2vw; --heading: 12vw; --lead: 24px; --body: 17px; --margin: 20px; }
  .navigation { gap: 0; padding-top: 8px; padding-bottom: 16px; }
  .brand { width: 200px; }
  .navigation .button { display: none; }
  .navigation nav { justify-content: space-between; gap: 8px; }
  .navigation nav a { font-size: 16px; }
  .hero { padding-bottom: 24px; }
  .hero-composition { grid-template-columns: 1fr; gap: 40px; padding-top: 24px; }
  .hero-copy { padding: 0; }
  .hero-copy p { margin-top: 24px; max-width: 30ch; }
  .hero-copy > .button { margin-top: 24px; }
  .hero-product { height: 480px; }
  .hero-phone { right: 8%; height: 82%; max-width: 72%; }
  .hero-app { left: 8%; bottom: 14%; width: 88px; }
  .hero-caption { left: 8%; font-size: 14px; }
  .identity-board { grid-template-columns: 1fr 1fr; grid-template-rows: auto 56vw; }
  .identity-main { grid-column: 1 / 3; grid-row: 1; padding: 32px 24px; min-height: 380px; gap: 32px; }
  .identity-main h2 { font-size: 16vw; }
  .identity-word { grid-column: 1; padding: 24px 20px; }
  .identity-word > span { font-size: 19vw; }
  .identity-word p { font-size: 14px; margin-top: 8px; }
  .identity-screen { grid-column: 2; padding: 16px 16px 0; }
  .identity-copy { grid-template-columns: 1fr; padding-block: 56px; padding-inline: 12px; gap: 32px; }
  .identity-copy .identity-intro { font-size: 28px; }
  .try { grid-template-columns: 1fr; padding-block: 40px 48px; gap: 40px; }
  .practice-preview { min-height: 500px; padding: 24px 20px; }
  .practice-presence { margin-block: 32px; }
  .preview-phrase { font-size: 30px; }
  .preview-top, .preview-bottom { font-size: 14px; }
  .try-content { gap: 32px; }
  .languages { gap: 24px; }
  .try-description h2 { font-size: 40px; }
  .demo-actions .button { min-height: 56px; }
  .journey > h2 { padding-top: 56px; padding-bottom: 40px; }
  .journey-fields { grid-template-columns: 1fr; }
  .journey-field { padding: 32px 20px 40px; gap: 32px; }
  .phone-image { width: 68%; max-width: 280px; margin: 0 auto; }
  .journey-field figcaption { order: -1; font-size: 28px; }
  .questions-heading { padding-block: 56px 40px; }
  .question-band { grid-template-columns: 1fr; padding-block: 32px; gap: 24px; }
  .question-band h3 { font-size: 24px; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-statement { padding: 32px 20px; gap: 32px; }
  .footer-navigation { padding: 24px 20px; display: grid; grid-template-columns: 1fr 1fr; font-size: 16px; gap: 8px 24px; }
  .footer-bottom { grid-template-columns: 1fr; }
  .footer-logo { min-height: 176px; padding: 32px 24px; }
  .footer-cta { min-height: 240px; padding: 24px 20px; font-size: 28px; }
  .big-arrow { width: 96px; }
}
@media (max-width: 360px) {
  .hero-phone { height: 76%; }
  .hero-app { width: 64px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { transform: none !important; }
}