/* Lora is distributed under the SIL Open Font License at /notices/Lora-OFL.txt. */
@font-face {
  font-family: Kairon Lora;
  src: url("/site/lora.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  unicode-range: U+0000-024F, U+0300-036F, U+1E00-1EFF, U+2000-206F;
}

:root {
  color-scheme: light;
  --paper: #f6f2e9;
  --ink: #0b263b;
  --muted: #405762;
  --line: #c8c1b2;
  --menu: #fffaf1;
  --focus: #236a57;
  --availability: #ebe6db;
  --display: Kairon Lora, Georgia, serif;
  --body: system-ui, sans-serif;
  --page-gutter: clamp(1rem, 4vw, 4rem);
  --frame: 94rem;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #101d24;
  --ink: #eff7f3;
  --muted: #bdcfce;
  --line: #3c5157;
  --menu: #1a2c32;
  --focus: #a8dfc7;
  --availability: #1d3035;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme]) {
    color-scheme: dark;
    --paper: #101d24;
    --ink: #eff7f3;
    --muted: #bdcfce;
    --line: #3c5157;
    --menu: #1a2c32;
    --focus: #a8dfc7;
    --availability: #1d3035;
  }
}

html:lang(ja) {
  --display: "Hiragino Mincho ProN", "Yu Mincho", "Noto Serif CJK JP", serif;
}
html:lang(zh) {
  --display: "Songti SC", "Noto Serif CJK SC", SimSun, serif;
}
html:lang(ko) {
  --display: "AppleMyungjo", "Noto Serif CJK KR", Batang, serif;
}
html:lang(hi) {
  --display: "Kohinoor Devanagari", "Noto Serif Devanagari", serif;
}
html:lang(ar),
html:lang(fa),
html:lang(ur) {
  --display: "Noto Naskh Arabic", "Geeza Pro", "Arabic Typesetting", serif;
}
html:lang(he) {
  --display: "Noto Serif Hebrew", "New Peninim MT", serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html {
  scroll-padding-block-start: 1.25rem;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.6 var(--body);
}

::selection {
  color: #102f2b;
  background: #c6e9d8;
}
a {
  color: inherit;
  text-underline-offset: 0.22em;
}
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}
img {
  display: block;
  max-inline-size: 100%;
  block-size: auto;
}
figure,
h1,
h2,
h3,
p {
  margin: 0;
}
h1,
h2,
h3 {
  font: 400 1em/1.13 var(--display);
  text-wrap: balance;
}
h2 {
  font-size: clamp(2.2rem, 3.8vw, 4.15rem);
  letter-spacing: -0.032em;
}
h3 {
  font-size: clamp(1.8rem, 2.8vw, 3.1rem);
  letter-spacing: -0.027em;
}
html[dir="rtl"] :is(h1, h2, h3) {
  letter-spacing: normal;
  line-height: 1.24;
}
html:lang(hi) :is(h1, h2, h3) {
  letter-spacing: normal;
  line-height: 1.32;
}

.frame {
  inline-size: min(calc(100% - 2 * var(--page-gutter)), var(--frame));
  margin-inline: auto;
}

.sr-only,
.skip-link:not(:focus) {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link:focus {
  position: absolute;
  z-index: 3;
  inset-block-start: 0.5rem;
  inset-inline-start: var(--page-gutter);
  padding: 0.65rem 1rem;
  background: var(--menu);
}

.header-inner {
  min-block-size: 5.1rem;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  inline-size: fit-content;
  align-items: center;
  gap: 0.58rem;
  font:
    400 1.63rem/1 Kairon Lora,
    Georgia,
    serif;
  text-decoration: none;
  direction: ltr;
}

.brand img {
  inline-size: 2.25rem;
  padding: 0.18rem;
  border-radius: 0.62rem;
  background: #0b263b;
}
.main-nav,
.preferences {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.main-nav {
  gap: clamp(1rem, 3vw, 2.75rem);
}
.main-nav a {
  font-size: 0.95rem;
  font-weight: 550;
  text-decoration: none;
}
.main-nav a:hover,
.main-nav a:focus-visible {
  text-decoration: underline;
}
.preferences {
  justify-self: end;
  justify-content: flex-end;
  gap: 0.55rem;
}
.language-menu {
  position: relative;
}
.language-menu summary {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-block-size: 2.65rem;
  padding-inline: 0.58rem;
  font-size: 0.86rem;
  cursor: pointer;
}

summary {
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
.language-menu ul {
  position: absolute;
  z-index: 2;
  inset-inline-end: 0;
  inset-block-start: 100%;
  inline-size: min(20rem, 78vw);
  max-block-size: min(25rem, 64vh);
  overflow: auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.15rem;
  margin: 0;
  padding: 0.45rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: var(--menu);
  list-style: none;
}

.language-menu a {
  display: block;
  border-radius: 0.5rem;
  min-block-size: 2.75rem;
  padding: 0.56rem 0.7rem;
  text-decoration: none;
}

.language-menu a:hover {
  text-decoration: underline;
}
.language-menu a[aria-current="page"] {
  background: var(--availability);
  font-weight: 650;
}
.theme-toggle {
  inline-size: 2.85rem;
  block-size: 2.85rem;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition:
    background-color 160ms ease,
    border-color 160ms ease;
}
.theme-toggle:hover {
  background: var(--availability);
  border-color: var(--muted);
}
.theme-toggle .icon-moon,
.theme-toggle[aria-pressed="true"] .icon-sun {
  display: none;
}
.theme-toggle[aria-pressed="true"] .icon-moon {
  display: block;
}

.hero {
  position: relative;
  isolation: isolate;
  background: #0b1c26;
  color: #fbf3e4;
  overflow: clip;
}
.hero-backdrop,
.hero-backdrop::after {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero-backdrop img {
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  object-position: center 56%;
}
.hero-backdrop::after {
  content: "";
  z-index: 0;
  background: linear-gradient(
    90deg,
    #071521f2 2%,
    #0a1925d9 30%,
    #0b1c2660 60%,
    #0b1c260c 100%
  );
}
html[dir="rtl"] .hero-backdrop {
  transform: scaleX(-1);
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: center;
  gap: clamp(1rem, 3vw, 3.25rem);
  min-block-size: clamp(31rem, 45vw, 43rem);
  padding-block: clamp(2.4rem, 5vw, 6rem);
}
.hero h1 {
  font-size: clamp(3rem, 4.95vw, 5.75rem);
  line-height: 1.07;
  letter-spacing: -0.037em;
  text-wrap: balance;
}
.hero-copy > p {
  max-inline-size: 44ch;
  margin-block-start: clamp(1rem, 2.1vw, 1.65rem);
  font-size: clamp(1.05rem, 1.4vw, 1.26rem);
  color: #e9e4db;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-block-start: 1.65rem;
}
.hero-actions a {
  display: inline-flex;
  align-items: center;
  min-block-size: 3rem;
  padding: 0.6rem 1.05rem;
  border-radius: 0.55rem;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 650;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    border-color 160ms ease;
}
.hero .action-primary {
  color: #261d15;
  background: #e5b77c;
}
.hero .action-primary:hover {
  background: #f2d1a3;
}
.demo-link {
  gap: 0.45rem;
}
.demo-link svg {
  inline-size: 1rem;
  block-size: 1rem;
}
.demo {
  max-inline-size: 75rem;
  padding-block: clamp(2.75rem, 6vw, 5.5rem) clamp(2rem, 4vw, 3.25rem);
}
.demo-player {
  display: block;
  inline-size: 100%;
  block-size: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border-radius: clamp(0.65rem, 1.8vw, 1.2rem);
  background: #08151f;
  box-shadow: 0 1.15rem 3rem #0e1a2833;
}
.demo-player[data-layout="portrait"] {
  aspect-ratio: 4 / 5;
}
.demo-player::cue {
  background-color: rgb(9 17 29 / 88%);
  font-size: clamp(0.85rem, 1.4vw, 1.25rem);
}
.demo-chapters:not([hidden]) {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.35rem;
  margin-block: 0 0.85rem;
}
.demo-chapters button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.52rem;
  min-block-size: 3.1rem;
  padding: 0.45rem;
  border: 0;
  border-block-end: 2px solid var(--line);
  border-radius: 0.48rem 0.48rem 0 0;
  background: transparent;
  color: var(--muted);
  font: 650 0.88rem/1.22 var(--body);
  cursor: pointer;
}
.demo-chapters button:hover,
.demo-chapters button[aria-pressed="true"] {
  color: var(--ink);
  background: var(--availability);
}
.demo-chapters button[aria-pressed="true"] {
  border-color: var(--focus);
}
.demo-chapters svg {
  flex: none;
  inline-size: 1.1rem;
  block-size: 1.1rem;
}
.site-header--legal .header-inner {
  grid-template-columns: 1fr auto;
}
.legal {
  max-inline-size: 45rem;
  padding-block: clamp(2.5rem, 6vw, 5rem);
}
.legal h1 {
  font-size: clamp(2rem, 5vw, 3.7rem);
  overflow-wrap: anywhere;
}
.legal h2 {
  font-size: clamp(1.35rem, 3vw, 1.9rem);
}
.legal time {
  display: block;
  margin-block-start: 0.65rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.legal p {
  margin-block-start: 0.85rem;
  color: var(--muted);
}
.legal .legal-intro {
  margin-block-start: 1.2rem;
  font-size: 1.1rem;
}
.legal section {
  margin-block-start: 1.65rem;
  padding-block-start: 1.5rem;
  border-block-start: 1px solid var(--line);
}
.legal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.2rem;
  margin-block-start: 2rem;
}
.hero .action-secondary {
  border-color: #f9edd4a8;
  color: #fff4e1;
  background: #09182488;
}
.hero .action-secondary:hover {
  background: #304354;
}
.hero :focus-visible {
  outline-color: #ffd9a1;
}
.hero-stage {
  position: relative;
  direction: ltr;
  aspect-ratio: 1.66;
  min-inline-size: 0;
}
.device {
  background: #111418;
  box-shadow:
    0 1rem 2.5rem #04101885,
    inset 0 0 0 1px #dfcfb873;
  padding: clamp(0.25rem, 0.55vw, 0.59rem);
  border-radius: clamp(0.65rem, 1.55vw, 1.6rem);
}
.device img {
  inline-size: 100%;
  border-radius: clamp(0.4rem, 1vw, 1.02rem);
}
.hero-tablet {
  position: absolute;
  inset-inline-end: 0;
  inset-block-end: 6%;
  inline-size: 77%;
}
.hero-phone {
  position: absolute;
  inset-inline-start: 0;
  inset-block-end: 0;
  inline-size: 23.8%;
  padding: clamp(0.21rem, 0.42vw, 0.45rem);
}

.features {
  padding-block-end: clamp(3.5rem, 7vw, 7rem);
}
.chapter-nav {
  position: sticky;
  inset-block-start: 0;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  background: var(--paper);
  border-block-end: 1px solid var(--line);
}
.chapter-nav a {
  display: flex;
  min-block-size: 4.25rem;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.65rem 0.38rem;
  border-block-end: 2px solid transparent;
  text-decoration: none;
  text-align: center;
  font-size: 0.86rem;
  font-weight: 650;
  transition:
    background-color 160ms ease,
    border-color 160ms ease;
}
.chapter-nav a + a {
  border-inline-start: 1px solid var(--line);
}
.chapter-nav svg {
  flex: none;
  color: var(--focus);
}
.chapter-nav span {
  min-inline-size: 0;
  overflow-wrap: anywhere;
}
.chapter-nav a:hover,
.chapter-nav a[aria-current="location"] {
  background: var(--availability);
  border-block-end-color: var(--focus);
}
.chapter-nav a:focus-visible {
  outline-offset: -4px;
}
.section-heading {
  max-inline-size: 52rem;
}
.features > .section-heading {
  margin-block: clamp(2.65rem, 5.7vw, 5rem) clamp(1.8rem, 4vw, 3.6rem);
}
.section-heading p,
.chapter-copy p,
.faq p {
  max-inline-size: 56ch;
  margin-block-start: 0.95rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.15vw, 1.15rem);
}
.feature-chapters {
  display: grid;
  gap: clamp(2.75rem, 7vw, 7.5rem);
}
.feature-chapter {
  display: grid;
  grid-template-columns: minmax(0, 0.79fr) minmax(0, 1.21fr);
  align-items: center;
  gap: clamp(1.75rem, 5vw, 6rem);
  scroll-margin-block-start: 4.6rem;
}
.feature-chapter--library,
.feature-chapter--listen {
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
}
.feature-chapter--library .chapter-art,
.feature-chapter--listen .chapter-art {
  grid-column: 1;
  grid-row: 1;
}
.feature-chapter--library .chapter-copy,
.feature-chapter--listen .chapter-copy {
  grid-column: 2;
  grid-row: 1;
}
.chapter-copy h3 {
  font-size: clamp(1.95rem, 3.25vw, 3.75rem);
}
.chapter-facts {
  padding: 0;
  list-style: none;
  margin-block: 1.3rem 0;
  border-block-start: 1px solid var(--line);
}
.chapter-facts li {
  display: grid;
  grid-template-columns: 0.42rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.65rem;
  padding-block: 0.68rem;
  border-block-end: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--ink);
}
.chapter-facts li::before {
  content: "";
  inline-size: 0.33rem;
  block-size: 0.33rem;
  transform: translateY(-0.14em);
  border-radius: 50%;
  background: var(--focus);
}
.chapter-art {
  position: relative;
  isolation: isolate;
  display: grid;
  place-items: center;
  direction: ltr;
  aspect-ratio: 1.46;
  border-radius: clamp(0.75rem, 2vw, 1.5rem);
  background: #152d37;
  overflow: hidden;
}
.chapter-art > img {
  position: absolute;
  inset: 0;
  z-index: -1;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
}
.product-screen {
  inline-size: min(28%, 12rem);
}
.feature-chapter--library .product-screen {
  inline-size: 82%;
}
.feature-chapter--reader .chapter-art {
  background: linear-gradient(145deg, #394859, #182a37 70%);
}
.feature-chapter--reader .product-screen {
  inline-size: 77%;
  margin-inline-start: 11%;
}
.feature-chapter--reader .reader-portrait {
  position: absolute;
  inset-inline-start: 5%;
  inset-block-end: 8%;
  inline-size: 23%;
  margin-inline-start: 0;
}
.feature-chapter--listen .product-screen {
  margin-inline-start: 34%;
}
.feature-chapter--quote .product-screen {
  margin-inline-start: 27%;
}
.feature-chapter--translate .chapter-art > img {
  filter: brightness(0.74);
}
.feature-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 4vw, 4.5rem);
}
.feature-pair .feature-chapter {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  align-items: start;
  gap: 1.4rem;
}
.feature-pair .chapter-art {
  grid-row: 1;
}
.feature-pair .chapter-copy {
  grid-row: 2;
}
.feature-pair .chapter-copy h3 {
  font-size: clamp(1.85rem, 2.8vw, 3.25rem);
}
.feature-pair .chapter-art {
  aspect-ratio: 1.62;
}
.feature-pair .product-screen {
  inline-size: min(25%, 11rem);
}
.feature-chapter--community .product-screen {
  margin-inline-start: 25%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
  .hero-tablet {
    animation: open-reader 760ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }
  .hero-phone {
    animation: open-reader 680ms 90ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }
  .chapter-art.is-visible .product-screen {
    animation: open-reader 610ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }
  @keyframes open-reader {
    from {
      opacity: 0.88;
      transform: translateY(0.85rem) scale(0.975);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }
}
@media (prefers-reduced-motion: reduce) {
  .theme-toggle,
  .hero-actions a,
  .chapter-nav a {
    transition: none;
  }
}

.availability {
  background: var(--availability);
}
.availability-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
  align-items: center;
  gap: clamp(1.6rem, 6vw, 6rem);
  padding-block: clamp(2.2rem, 6vw, 5.5rem);
}
.stores,
.site-footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
.stores {
  border-block-start: 1px solid var(--line);
}
.stores li {
  display: grid;
  gap: 0.12rem;
  padding-block: 0.85rem;
  border-block-end: 1px solid var(--line);
}
.stores strong {
  justify-self: start;
  font-size: 1.13rem;
}
.stores span {
  color: var(--muted);
}
.faq {
  display: grid;
  grid-template-columns: minmax(0, 0.73fr) minmax(0, 1.27fr);
  gap: clamp(1.6rem, 5vw, 4.8rem);
  padding-block: clamp(2.2rem, 6vw, 5.5rem);
}
.faq h2 {
  font-size: clamp(2rem, 3vw, 3.25rem);
}
.faq details {
  border-block-start: 1px solid var(--line);
}
.faq details:last-child {
  border-block-end: 1px solid var(--line);
}
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-block-size: 3rem;
  padding-block: 0.72rem;
  font-weight: 650;
  cursor: pointer;
}
.faq summary svg {
  flex: none;
}
.faq details[open] summary svg {
  rotate: 180deg;
}
.faq p {
  margin-block: 0 1.05rem;
}
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem 2.2rem;
  padding-block: 1.65rem 2.25rem;
  border-block-start: 1px solid var(--line);
}
.footer-identity,
.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1.25rem;
}
.site-footer a:not(.brand) {
  color: var(--muted);
  font-size: 0.89rem;
}

@media (max-width: 70rem) {
  .chapter-nav a {
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.8rem;
  }
}
@media (max-width: 61rem) {
  .header-inner {
    grid-template-columns: 1fr auto;
    gap: 0.3rem 0.65rem;
    padding-block: 0.7rem;
  }
  .main-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    padding-block: 0.4rem;
  }
  .hero-inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    min-block-size: 0;
  }
  .hero h1 {
    font-size: clamp(2.7rem, 5.5vw, 4.8rem);
  }
}
@media (max-width: 47rem) {
  .demo-chapters:not([hidden]) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .demo-chapters button {
    font-size: 0.77rem;
  }
  .hero-inner,
  .feature-chapter,
  .feature-pair,
  .availability-inner,
  .faq {
    grid-template-columns: minmax(0, 1fr);
  }
  .hero-inner {
    gap: 1.9rem;
    padding-block: 2.1rem 2rem;
  }
  .hero h1 {
    max-inline-size: 17ch;
    font-size: clamp(2.55rem, 8.9vw, 4.2rem);
  }
  .hero-backdrop img {
    object-position: 60% center;
  }
  .hero-backdrop::after {
    background: linear-gradient(
      180deg,
      #071521ed 0%,
      #0a1925dd 38%,
      #0b1c2620 100%
    );
  }
  .hero-stage {
    aspect-ratio: 1.73;
  }
  .chapter-nav {
    position: static;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .chapter-nav a {
    min-block-size: 3.95rem;
  }
  .chapter-nav a:nth-child(5) {
    border-inline-start: 0;
  }
  .chapter-nav a:nth-child(-n + 4) {
    box-shadow: inset 0 -1px var(--line);
  }
  .feature-chapter {
    gap: 1.1rem;
    scroll-margin-block-start: 0.5rem;
  }
  .feature-chapter--library .chapter-art,
  .feature-chapter--listen .chapter-art,
  .feature-chapter--library .chapter-copy,
  .feature-chapter--listen .chapter-copy {
    grid-column: auto;
    grid-row: auto;
  }
  .feature-chapter .chapter-art {
    order: -1;
  }
  .feature-pair {
    gap: 2.75rem;
  }
  .feature-pair .feature-chapter {
    gap: 1.1rem;
  }
}
@media (max-width: 25rem) {
  .main-nav {
    gap: 0.3rem 0.95rem;
  }
  .preferences {
    gap: 0.15rem;
  }
  .language-menu summary {
    padding-inline: 0.32rem;
    gap: 0.25rem;
  }
  .chapter-nav a {
    font-size: 0.73rem;
    overflow-wrap: anywhere;
  }
}