:root {
  --navy: #122a42;
  --paper: #eaf3fe;
  --card: #fff;
  --alt: #e1edfc;
  --soft: #4a6e93;
  --muted: #9bb6d6;
  --accent: #0b93bd;
  --line: rgba(18, 42, 66, 0.12);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", sans-serif;
  color: var(--navy);
  background: var(--paper);
  font-synthesis: none;
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 6px;
}
p {
  line-height: 1.85;
}
h1,
h2,
h3,
p,
figure {
  margin: 0;
}
h1,
h2,
h3 {
  text-wrap: balance;
}
h1 {
  font-size: clamp(38px, 4.6vw, 64px);
  line-height: 1.32;
  letter-spacing: -0.045em;
  font-weight: 650;
}
h2 {
  font-size: clamp(29px, 3.3vw, 44px);
  line-height: 1.45;
  letter-spacing: -0.035em;
  font-weight: 650;
}
h3 {
  font-size: 28px;
  line-height: 1.5;
  font-weight: 600;
}
.container {
  width: min(1160px, calc(100% - 80px));
  margin-inline: auto;
}
.dark {
  background: var(--navy);
  color: var(--card);
}
.skip {
  position: absolute;
  top: 10px;
  left: 16px;
  background: white;
  color: var(--navy);
  padding: 12px;
  transform: translateY(-160%);
  z-index: 10;
}
.skip:focus {
  transform: none;
}
.nav {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  gap: 10px;
  align-items: baseline;
  font-size: 23px;
  font-weight: 650;
  letter-spacing: -0.03em;
}
.brand span {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.brand img {
  width: 32px;
  height: 32px;
  align-self: center;
  object-fit: contain;
}
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
  font-size: 14px;
}
.nav-download {
  border: 1px solid #9bb6d666;
  border-radius: 99px;
  padding: 11px 21px;
}
.hero {
  text-align: center;
  padding: 58px 0 0;
  overflow: hidden;
}
.eyebrow {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--soft);
  font-weight: 600;
  margin-bottom: 20px;
}
.dark .eyebrow {
  color: var(--muted);
}
.hero h1 {
  margin-bottom: 23px;
}
.lead {
  font-size: 17px;
  max-width: 570px;
  margin-inline: auto;
  color: var(--muted);
}
.actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}
.button {
  min-width: 170px;
  min-height: 54px;
  padding: 15px 23px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  border-radius: 12px;
  background: var(--navy);
  color: white;
  font-size: 15px;
  font-weight: 550;
  transition:
    transform 0.18s ease,
    background 0.18s ease;
}
.button[href]:hover {
  transform: translateY(-2px);
  background: var(--soft);
}
.dark .button {
  background: var(--card);
  color: var(--navy);
}
.dark .button[href]:hover {
  background: var(--paper);
}
.button small {
  font-size: 11px;
  font-weight: 400;
  opacity: 0.72;
}
.unavailable {
  cursor: default;
}
.phones {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 64px;
  align-items: flex-start;
}
.phone {
  --scale: 0.7;
  position: relative;
  flex: 0 0 auto;
  width: calc(360px * var(--scale) + 12px);
  height: calc(730px * var(--scale) + 12px);
  border: 6px solid #fff;
  border-radius: 34px;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 0 22px 65px #061c3026;
  text-align: left;
  color: var(--navy);
}
.screen {
  zoom: var(--scale);
  width: 360px;
  height: 730px;
  overflow: hidden;
  pointer-events: none;
  background: var(--paper);
}
.screen * {
  box-sizing: border-box;
}
.status {
  height: 38px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 22px;
  font-size: 12px;
  font-weight: 600;
  background: var(--paper);
}
.status span:last-child {
  font-size: 10px;
  letter-spacing: 3px;
}
.phone-set {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}
.phone-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.12em;
}
.hero .phones {
  padding-bottom: 50px;
}
.hero .phone-set:nth-child(2) {
  margin-top: 34px;
}
.prototype-note {
  font-size: 11px;
  color: var(--muted);
  padding-bottom: 30px;
  line-height: 1.6;
}
.section {
  padding-block: 112px;
}
.intro {
  text-align: center;
}
.section-heading {
  max-width: 760px;
  margin: auto;
}
.section-heading > p:last-child {
  color: var(--soft);
  margin-top: 20px;
  font-size: 16px;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  text-align: left;
  margin-top: 66px;
  gap: 55px;
}
.step {
  border-top: 1px solid var(--line);
  padding-top: 25px;
}
.step-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
}
.step-number {
  font-size: 12px;
  color: var(--soft);
  letter-spacing: 0.12em;
}
.step-arrow {
  font-size: 23px;
  color: var(--soft);
}
.step h3 {
  font-size: 23px;
  margin-bottom: 13px;
}
.step p {
  font-size: 15px;
  color: var(--soft);
  max-width: 290px;
}
.features {
  background: var(--card);
}
.features .section-heading {
  text-align: center;
}
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 100px;
  margin-top: 70px;
}
.feature-row.reverse .feature-copy {
  order: 2;
}
.feature-copy {
  max-width: 410px;
}
.feature-copy .eyebrow {
  margin-bottom: 17px;
}
.feature-copy p:last-child {
  margin-top: 22px;
  color: var(--soft);
  font-size: 16px;
}
.feature-visual {
  background: var(--paper);
  padding: 42px 25px 0;
  border-radius: 24px;
  display: flex;
  justify-content: center;
  overflow: hidden;
  height: 480px;
}
.feature-visual .phone {
  --scale: 0.82;
  box-shadow: 0 16px 45px #122a4214;
}
.feature-row:nth-of-type(3) .feature-visual {
  background: var(--alt);
}
.archive-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 55px;
}
.archive-copy > p:not(.eyebrow) {
  margin-top: 25px;
  max-width: 420px;
  color: var(--muted);
  font-size: 16px;
}
.metrics {
  display: flex;
  gap: 38px;
  border-top: 1px solid #9bb6d64d;
  margin-top: 38px;
  padding-top: 26px;
}
.metrics div {
  display: grid;
  gap: 10px;
}
.metrics strong {
  font-size: 21px;
  font-weight: 500;
}
.metrics span {
  font-size: 12px;
  color: var(--muted);
}
.archive .phones {
  margin-top: 0;
  gap: 20px;
}
.archive .phone {
  --scale: 0.56;
  border-width: 5px;
  width: calc(360px * var(--scale) + 10px);
  height: calc(730px * var(--scale) + 10px);
  border-radius: 28px;
}
.archive .phone-set:last-child {
  margin-top: 56px;
}
.archive .prototype-note {
  padding: 24px 0 0;
  text-align: right;
}
.download {
  text-align: center;
  padding-block: 105px;
}
.download p:not(.eyebrow) {
  margin-top: 20px;
  color: var(--soft);
}
.download .small-note {
  font-size: 12px;
}
.footer {
  background: var(--paper);
  padding: 36px 0 32px;
}
.footer-top {
  border-top: 1px solid var(--line);
  padding-top: 36px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
}
.footer .tagline {
  font-size: 12px;
  color: var(--soft);
  margin-top: 10px;
}
.footer-links {
  display: flex;
  gap: 26px;
  align-items: center;
  font-size: 13px;
  color: var(--soft);
  flex-wrap: wrap;
}
.pending {
  color: var(--soft);
}
.pending small {
  font-size: 10px;
  margin-left: 5px;
}
.legal {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 35px;
  color: var(--soft);
  font-size: 11px;
  line-height: 1.8;
}
.legal-info {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.footer a:hover {
  text-decoration: underline;
}
@media (prefers-reduced-motion: no-preference) {
  .hero h1 {
    animation: rise 0.6s ease both;
  }
  .hero .lead {
    animation: rise 0.7s 0.08s ease both;
  }
  .hero .phones {
    animation: rise 0.8s 0.12s ease both;
  }
  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(12px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}
/* Desktop copy and real prototype visuals share a row. The section remains
   content-sized; tablet/mobile keep the original stacked composition. */
@media (min-width: 1024px) {
  .nav {
    height: 72px;
  }
  .nav.container,
  .hero > .container {
    width: min(1280px, calc(100% - 80px));
  }
  .hero {
    padding: 72px 0;
    text-align: left;
  }
  .hero > .container {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: center;
    gap: 32px;
  }
  .hero-copy,
  .hero-visual {
    min-width: 0;
  }
  .hero .eyebrow {
    margin-bottom: 22px;
    letter-spacing: 0.08em;
  }
  .hero h1 {
    font-size: clamp(40px, 3.4vw, 50px);
    line-height: 1.4;
    margin-bottom: 24px;
  }
  .hero .lead {
    max-width: 460px;
    margin-inline: 0;
    font-size: 16px;
    line-height: 1.9;
  }
  .hero .actions {
    justify-content: flex-start;
    margin-top: 30px;
    gap: 12px;
  }
  .hero .phones {
    margin-top: 0;
    padding-bottom: 0;
    gap: 10px;
  }
  .hero .phone {
    --scale: 0.44;
    border-radius: 25px;
  }
  .hero .phone-set {
    gap: 12px;
  }
  .hero .phone-set:nth-child(2) {
    margin-top: 36px;
  }
  .hero .phone-label {
    font-size: 9px;
    line-height: 1.4;
    letter-spacing: 0.03em;
    white-space: nowrap;
  }
  .hero .prototype-note {
    padding-bottom: 0;
    margin-top: 18px;
    text-align: center;
  }
}
@media (min-width: 1280px) {
  .hero {
    padding-block: 96px;
  }
  .hero > .container {
    gap: 40px;
  }
  .hero .phones {
    gap: 14px;
  }
  .hero .phone {
    --scale: 0.58;
    border-radius: 30px;
  }
  .hero .phone-set:nth-child(2) {
    margin-top: 44px;
  }
  .hero .phone-label {
    font-size: 10px;
  }
}
@media (min-width: 1400px) {
  .hero .phone {
    --scale: 0.6;
  }
}
/* Short laptops tighten whitespace without fixing the section height. */
@media (min-width: 1024px) and (max-height: 800px) {
  .nav {
    height: 64px;
  }
  .hero {
    padding-block: 64px;
  }
  .hero .phone-set:nth-child(2) {
    margin-top: 32px;
  }
}
@media (min-width: 1600px) and (min-height: 1000px) {
  .nav {
    height: 80px;
  }
  .nav.container,
  .hero > .container {
    width: min(1440px, calc(100% - 120px));
  }
  .hero {
    padding-block: 132px;
  }
  .hero h1 {
    font-size: 56px;
  }
  .hero .phone {
    --scale: 0.7;
    border-radius: 34px;
  }
}
@media (max-width: 1023px) {
  .container {
    width: calc(100% - 64px);
  }
  .nav {
    height: 86px;
  }
  .hero {
    padding-top: 45px;
  }
  .section {
    padding-block: 85px;
  }
  .phones {
    gap: 23px;
  }
  .phone {
    --scale: 0.58;
  }
  .feature-row {
    gap: 50px;
  }
  .feature-visual {
    height: 435px;
    padding-inline: 15px;
  }
  .feature-visual .phone {
    --scale: 0.74;
  }
  .archive-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 50px;
  }
  .archive-copy > p:not(.eyebrow) {
    margin-inline: auto;
  }
  .metrics {
    justify-content: center;
    max-width: 430px;
    margin-inline: auto;
  }
  .archive .phone {
    --scale: 0.65;
  }
  .archive .prototype-note {
    text-align: center;
  }
  .steps {
    gap: 30px;
  }
  .footer-top {
    align-items: flex-start;
  }
  .footer-links {
    gap: 17px;
  }
}
@media (max-width: 639px) {
  .container {
    width: calc(100% - 40px);
  }
  .nav {
    height: 76px;
  }
  .brand {
    font-size: 21px;
  }
  .brand span {
    font-size: 15px;
  }
  .nav-links > a:not(.nav-download) {
    display: none;
  }
  .nav-links {
    gap: 0;
  }
  .nav-download {
    font-size: 12px;
    padding: 9px 16px;
  }
  .hero {
    padding-top: 41px;
  }
  .eyebrow {
    font-size: 11px;
    margin-bottom: 19px;
  }
  h1 {
    font-size: 38px;
  }
  h2 {
    font-size: 29px;
  }
  h3 {
    font-size: 26px;
  }
  .lead {
    font-size: 14px;
    max-width: 320px;
    padding-inline: 10px;
  }
  .actions {
    gap: 10px;
    margin-top: 26px;
  }
  .button {
    min-width: 147px;
    padding: 14px 16px;
    font-size: 14px;
    gap: 12px;
  }
  .phones {
    gap: 10px;
    margin-top: 45px;
  }
  .phone {
    --scale: 0.28;
    border-width: 3px;
    width: calc(360px * var(--scale) + 6px);
    height: calc(730px * var(--scale) + 6px);
    border-radius: 16px;
  }
  .phone-set {
    gap: 12px;
  }
  .hero .phone-set:nth-child(2) {
    margin-top: 19px;
  }
  .hero .phones {
    padding-bottom: 27px;
  }
  .phone-label {
    font-size: 9px;
    letter-spacing: 0.04em;
  }
  .prototype-note {
    font-size: 10px;
    padding-bottom: 26px;
  }
  .section {
    padding-block: 66px;
  }
  .section-heading > p:last-child {
    font-size: 14px;
  }
  .steps {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-top: 38px;
  }
  .step {
    padding-top: 18px;
  }
  .step-top {
    margin-bottom: 10px;
  }
  .step h3 {
    font-size: 22px;
    margin-bottom: 7px;
  }
  .step p {
    max-width: none;
    font-size: 14px;
  }
  .feature-row {
    grid-template-columns: 1fr;
    gap: 26px;
    margin-top: 45px;
  }
  .feature-copy {
    max-width: none;
  }
  .feature-row.reverse .feature-copy {
    order: 0;
  }
  .feature-copy p:last-child {
    margin-top: 13px;
    font-size: 14px;
  }
  .feature-copy .eyebrow {
    margin-bottom: 10px;
  }
  .feature-visual {
    height: 415px;
    border-radius: 20px;
    padding-top: 30px;
  }
  .feature-visual .phone {
    --scale: 0.79;
    border-width: 5px;
    width: calc(360px * var(--scale) + 10px);
    height: calc(730px * var(--scale) + 10px);
    border-radius: 30px;
  }
  .archive-grid {
    gap: 38px;
  }
  .archive-copy > p:not(.eyebrow) {
    font-size: 14px;
  }
  .metrics {
    gap: 35px;
  }
  .metrics strong {
    font-size: 18px;
  }
  .archive .phones {
    gap: 14px;
  }
  .archive .phone {
    --scale: 0.41;
    border-width: 4px;
    width: calc(360px * var(--scale) + 8px);
    height: calc(730px * var(--scale) + 8px);
    border-radius: 20px;
  }
  .archive .phone-set:last-child {
    margin-top: 35px;
  }
  .archive .prototype-note {
    padding-top: 20px;
  }
  .download {
    padding-block: 68px;
  }
  .download p:not(.eyebrow) {
    font-size: 14px;
  }
  .download .small-note {
    font-size: 11px;
  }
  .footer {
    padding-top: 0;
  }
  .footer-top {
    flex-direction: column;
    gap: 28px;
  }
  .footer-links {
    gap: 16px 23px;
    font-size: 12px;
  }
  .legal {
    flex-direction: column;
    font-size: 10px;
    margin-top: 28px;
  }
  .legal-info {
    gap: 8px 18px;
  }
}
@media (max-width: 359px) {
  .container {
    width: calc(100% - 32px);
  }
  h1 {
    font-size: 33px;
  }
  .phone {
    --scale: 0.25;
  }
  .phones {
    gap: 8px;
  }
  .button {
    min-width: 138px;
    padding-inline: 12px;
  }
  .feature-visual .phone {
    --scale: 0.68;
  }
  .archive .phone {
    --scale: 0.36;
  }
}
@media (prefers-reduced-motion: reduce) {
  :root {
    scroll-behavior: auto;
  }
  * {
    animation: none !important;
    transition: none !important;
  }
}

.screen .prototype-control {
  text-align: center;
  font-family: Arial, sans-serif;
  font-size: 13.3333px;
}

@media (min-width: 640px) and (max-width: 767px) {
  .hero .phones {
    gap: 18px;
  }
  .hero .phone {
    --scale: 0.46;
  }
  .feature-visual .phone {
    --scale: 0.6;
  }
}