:root {
  --black: #000;
  --black-soft: #08090b;
  --white: #f1f0eb;
  --gray-1: #c7c7c2;
  --gray-2: #8b8d91;
  --gray-3: #4a4d52;
  --line: rgba(255, 255, 255, 0.14);
  --shell: min(1180px, calc(100vw - 48px));
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--black);
  overflow-x: clip;
}

body {
  margin: 0;
  color: var(--white);
  background: var(--black);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 12px;
  left: 12px;
  transform: translateY(-180%);
  padding: 10px 14px;
  color: var(--black);
  background: var(--white);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 22px 32px;
  border-bottom: 1px solid transparent;
  transition: background 300ms ease, border-color 300ms ease, padding 300ms ease;
}

.site-header.is-scrolled {
  padding-block: 15px;
  border-color: var(--line);
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(20px) saturate(120%);
}

.brand {
  width: 176px;
}

.brand img {
  width: 100%;
  height: auto;
}

.site-header nav {
  display: flex;
  gap: 28px;
}

.site-header nav a {
  color: var(--gray-1);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  color: #fff;
}

.section-shell {
  width: var(--shell);
  margin-inline: auto;
}

.hero {
  display: grid;
  width: min(1440px, 100%);
  min-height: 100svh;
  margin-inline: auto;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 0.72fr);
  align-items: center;
  gap: clamp(28px, 6vw, 100px);
  padding: 130px max(24px, 5vw) 60px;
}

.kicker,
.section-index,
.availability,
.hero-art figcaption,
.gallery-card small {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.kicker {
  margin: 0 0 28px;
  color: var(--gray-2);
  font-size: 12px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(66px, 8.5vw, 142px);
  font-weight: 400;
  letter-spacing: -0.07em;
  line-height: 0.84;
  text-transform: uppercase;
}

.hero h1 span {
  color: var(--gray-2);
}

.hero-intro {
  max-width: 590px;
  margin: 42px 0 0;
  color: var(--gray-1);
  font-size: clamp(17px, 1.7vw, 24px);
  font-weight: 350;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  margin-top: 42px;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  padding: 0 18px;
  border: 1px solid var(--white);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  color: var(--black);
  background: var(--white);
}

.availability {
  color: var(--gray-2);
  font-size: 10px;
}

.hero-art {
  position: relative;
  display: grid;
  width: min(100%, 600px);
  margin: 0 auto;
  align-content: center;
  justify-items: end;
}

.hero-wordmark {
  width: 100%;
  height: auto;
  margin-bottom: clamp(-26px, -2.2vw, -12px);
}

.hero-device {
  width: min(78%, 430px);
  height: auto;
}

.hero-art figcaption {
  position: absolute;
  z-index: 2;
  right: -42px;
  bottom: 80px;
  color: var(--gray-2);
  font-size: 10px;
  writing-mode: vertical-rl;
}

.ticker {
  width: 100%;
  padding: 17px 0;
  border-block: 1px solid var(--line);
  overflow: hidden;
}

.ticker div {
  display: flex;
  width: max-content;
  animation: ticker 28s linear infinite;
  align-items: center;
  gap: 30px;
  white-space: nowrap;
}

.ticker span {
  font-size: clamp(20px, 2.4vw, 38px);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.ticker i {
  color: var(--gray-3);
  font-size: 34px;
  font-style: normal;
}

@keyframes ticker {
  to { transform: translateX(-50%); }
}

.manifesto {
  display: grid;
  padding-block: clamp(110px, 15vw, 230px);
  grid-template-columns: 0.45fr 1fr;
  gap: 30px;
}

.section-index {
  color: var(--gray-2);
  font-size: 11px;
}

.manifesto-copy > p:first-child {
  margin: 0 0 25px;
  color: var(--gray-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  text-transform: uppercase;
}

.manifesto h2,
.feature-copy h2,
.gallery-heading h2,
.privacy-statement h2,
.closing h2 {
  margin: 0;
  font-size: clamp(52px, 8vw, 122px);
  font-weight: 400;
  letter-spacing: -0.07em;
  line-height: 0.88;
  text-transform: uppercase;
}

.section-lede {
  max-width: 730px;
  margin: 50px 0 0;
  color: var(--gray-1);
  font-size: clamp(19px, 2vw, 29px);
  font-weight: 350;
  line-height: 1.45;
}

.principles {
  display: grid;
  padding-bottom: clamp(110px, 15vw, 220px);
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.principle {
  min-height: 280px;
  padding: 24px 32px 32px 0;
  border-right: 1px solid var(--line);
}

.principle + .principle {
  padding-left: 32px;
}

.principle:last-child {
  border-right: 0;
}

.principle-number {
  color: var(--gray-3);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
}

.principle h3 {
  max-width: 290px;
  margin: 90px 0 18px;
  font-size: clamp(25px, 2.5vw, 38px);
  font-weight: 450;
  letter-spacing: -0.04em;
  line-height: 1;
}

.principle p {
  max-width: 300px;
  margin: 0;
  color: var(--gray-2);
  font-size: 15px;
  line-height: 1.55;
}

.feature-stage {
  display: grid;
  min-height: 900px;
  align-items: center;
  grid-template-columns: 0.78fr 0.9fr;
  gap: clamp(40px, 8vw, 120px);
}

.feature-copy h2 {
  margin-top: 42px;
  font-size: clamp(45px, 6vw, 88px);
}

.feature-copy > p {
  max-width: 520px;
  margin: 40px 0;
  color: var(--gray-1);
  font-size: 18px;
  line-height: 1.6;
}

.feature-data {
  margin: 0;
  border-top: 1px solid var(--line);
}

.feature-data div {
  display: grid;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 90px 1fr;
}

.feature-data dt {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}

.feature-data dd {
  margin: 0;
  color: var(--gray-2);
  font-size: 13px;
  text-transform: uppercase;
}

.feature-visual {
  margin: 0;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.08), transparent 45%),
    radial-gradient(circle at 50% 30%, #71757d, #191b20 54%, #08090b 78%);
  overflow: hidden;
}

.feature-visual img {
  width: 100%;
}

.gallery-section {
  padding-block: clamp(120px, 16vw, 240px);
}

.gallery-heading {
  display: grid;
  margin-bottom: 70px;
  grid-template-columns: 0.45fr 1fr;
}

.gallery-heading h2 {
  font-size: clamp(48px, 7vw, 96px);
}

.gallery-heading p {
  margin: 24px 0 0;
  color: var(--gray-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.gallery {
  display: grid;
  grid-auto-columns: min(430px, 72vw);
  grid-auto-flow: column;
  gap: 18px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  scroll-padding-inline: max(24px, calc((100vw - 1180px) / 2));
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
  scroll-snap-type: x mandatory;
}

.gallery-card {
  position: relative;
  margin: 0;
  scroll-snap-align: start;
  overflow: hidden;
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 1290 / 2796;
  object-fit: cover;
  transition: transform 800ms var(--ease);
}

.gallery-card:hover img {
  transform: scale(1.015);
}

.gallery-card figcaption {
  position: absolute;
  inset: auto 0 0;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 70px 20px 20px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.82));
}

.gallery-card figcaption span {
  font-size: 26px;
  font-weight: 500;
}

.gallery-card small {
  color: var(--gray-1);
  font-size: 9px;
}

.privacy-promise {
  display: grid;
  padding-block: clamp(130px, 18vw, 270px);
  border-top: 1px solid var(--line);
  grid-template-columns: 0.45fr 1fr;
}

.privacy-statement h2 span {
  color: var(--gray-3);
}

.privacy-statement > p {
  max-width: 710px;
  margin: 50px 0 36px;
  color: var(--gray-1);
  font-size: clamp(17px, 1.8vw, 23px);
  line-height: 1.55;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
}

.text-link span {
  font-size: 18px;
}

.closing {
  display: flex;
  min-height: 92svh;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 80px 24px;
  text-align: center;
  background:
    linear-gradient(rgba(7, 8, 10, 0.2), rgba(7, 8, 10, 0.86)),
    radial-gradient(circle at 50% 40%, #72767d, #24272c 48%, #08090b 74%);
}

.closing p {
  margin: 0 0 15px;
  color: var(--gray-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  letter-spacing: 0.16em;
}

.closing h2 {
  font-size: clamp(54px, 10vw, 160px);
}

.closing img {
  width: min(760px, 72vw);
  margin-top: 90px;
}

.site-footer {
  display: flex;
  width: var(--shell);
  margin-inline: auto;
  justify-content: space-between;
  padding-block: 26px 40px;
  color: var(--gray-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-footer p {
  margin: 0;
}

.site-footer div {
  display: flex;
  gap: 25px;
}

.site-footer a {
  text-underline-offset: 4px;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 900ms var(--ease), transform 900ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 840px) {
  :root {
    --shell: min(100% - 32px, 680px);
  }

  .site-header {
    padding: 18px 16px;
  }

  .brand {
    width: 138px;
  }

  .site-header nav {
    gap: 16px;
  }

  .site-header nav a:first-child {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 145px 16px 70px;
  }

  .hero-art {
    width: min(100%, 520px);
    margin-top: 30px;
  }

  .hero-wordmark {
    margin-bottom: -10px;
  }

  .hero-device {
    width: min(80%, 390px);
  }

  .hero-art figcaption {
    right: 12px;
  }

  .manifesto,
  .gallery-heading,
  .privacy-promise {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .principles {
    grid-template-columns: 1fr;
  }

  .principle,
  .principle + .principle {
    min-height: auto;
    padding: 22px 0 60px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .principle h3 {
    margin-top: 55px;
  }

  .feature-stage {
    grid-template-columns: 1fr;
    padding-block: 80px;
  }

  .feature-visual {
    order: -1;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 20px;
  }
}

@media (max-width: 480px) {
  .site-header nav a {
    font-size: 10px;
  }

  .hero h1 {
    font-size: clamp(57px, 18vw, 84px);
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .gallery {
    grid-auto-columns: 82vw;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .ticker div {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Privacy policy */
.policy-page {
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.045), transparent 30%),
    var(--black);
}

.policy-shell {
  width: min(980px, calc(100vw - 48px));
  margin-inline: auto;
  padding: 150px 0 120px;
}

.policy-hero {
  padding: 80px 0 100px;
  border-bottom: 1px solid var(--line);
}

.policy-hero h1 {
  margin: 0;
  font-size: clamp(60px, 10vw, 130px);
  font-weight: 400;
  letter-spacing: -0.075em;
  line-height: 0.86;
  text-transform: uppercase;
}

.policy-hero h1 span {
  color: var(--gray-2);
}

.policy-hero > p:last-child {
  margin: 40px 0 0;
  color: var(--gray-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.policy-summary {
  display: grid;
  margin: 0 0 160px;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
}

.policy-summary div {
  min-height: 180px;
  padding: 24px 24px 34px 0;
  border-right: 1px solid var(--line);
}

.policy-summary div + div {
  padding-left: 24px;
}

.policy-summary div:last-child {
  border-right: 0;
}

.policy-summary strong,
.policy-summary span {
  display: block;
}

.policy-summary strong {
  margin-bottom: 75px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  letter-spacing: 0.07em;
}

.policy-summary span {
  color: var(--gray-2);
  font-size: 13px;
  line-height: 1.45;
}

.policy-content {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  column-gap: 55px;
}

.policy-content + .policy-content {
  margin-top: 180px;
  padding-top: 110px;
  border-top: 1px solid var(--line);
}

.policy-label {
  position: sticky;
  top: 100px;
  height: max-content;
  color: var(--gray-2);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.policy-content section {
  grid-column: 2;
  padding: 0 0 70px;
}

.policy-content h2 {
  margin: 0 0 22px;
  font-size: clamp(25px, 3vw, 36px);
  font-weight: 450;
  letter-spacing: -0.035em;
}

.policy-content p,
.policy-content li {
  color: var(--gray-1);
  font-size: 16px;
  font-weight: 350;
  line-height: 1.75;
}

.policy-content p {
  margin: 0 0 18px;
}

.policy-content ul {
  margin: 18px 0 0;
  padding-left: 20px;
}

.policy-content a {
  color: var(--white);
  text-decoration-color: var(--gray-3);
  text-underline-offset: 4px;
}

.policy-content-zh p,
.policy-content-zh li {
  line-height: 1.9;
}

@media (max-width: 720px) {
  .policy-shell {
    width: min(100% - 32px, 600px);
    padding-top: 110px;
  }

  .policy-summary {
    grid-template-columns: 1fr;
  }

  .policy-summary div,
  .policy-summary div + div {
    min-height: auto;
    padding: 24px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .policy-summary strong {
    margin-bottom: 28px;
  }

  .policy-content {
    grid-template-columns: 1fr;
  }

  .policy-label {
    position: static;
    margin-bottom: 70px;
  }

  .policy-content section {
    grid-column: 1;
  }
}