:root {
  color-scheme: dark;
  --bg: #080808;
  --ink: #ededed;
  --muted: #aaa;
  --line: #292929;
  font-family: "Avenir Next", "Apple SD Gothic Neo", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 6px;
}
p {
  line-height: 1.7;
  color: var(--muted);
  margin: 0;
}
h1,
h2,
h3 {
  font-weight: 500;
  margin: 0;
  letter-spacing: -0.045em;
}
h2 {
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.12;
}
h3 {
  font-size: 23px;
  line-height: 1.3;
}
html[lang="ko"] h1,
html[lang="ko"] h2,
html[lang="ko"] h3,
html[lang="ko"] p {
  word-break: keep-all;
}
svg {
  display: block;
}
.wrap {
  width: min(1180px, calc(100% - 80px));
  margin: auto;
}
.skip {
  position: fixed;
  left: 20px;
  top: -100px;
  padding: 14px;
  background: white;
  color: black;
  z-index: 9;
}
.skip:focus {
  top: 14px;
}
.topbar {
  height: 84px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.wordmark {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.07em;
}
.topbar nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
  color: #bbb;
}
.topbar nav a:hover,
.textlink:hover {
  color: white;
}
.lang {
  background: none;
  border: 1px solid #444;
  border-radius: 6px;
  padding: 6px 10px;
  color: #ddd;
  font-size: 12px;
}
.github-link {
  display: flex;
  align-items: center;
  gap: 8px;
}
.github-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}
.eyebrow {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #999;
  display: flex;
  align-items: center;
  gap: 9px;
}
.dot {
  height: 5px;
  width: 5px;
  border-radius: 50%;
  background: #ddd;
  box-shadow: 0 0 12px #ffffff40;
}
.hero {
  display: grid;
  grid-template-columns: 1.13fr 1fr;
  align-items: center;
  gap: 32px;
  min-height: 600px;
  padding: 88px 0 66px;
}
.hero h1 {
  font-size: clamp(48px, 5.4vw, 76px);
  line-height: 1.045;
  margin: 25px 0;
  letter-spacing: -0.065em;
}
.hero h1 span {
  display: block;
  color: #929292;
}
.hero .intro {
  max-width: 475px;
  font-size: 17px;
}
.actions {
  display: flex;
  gap: 24px;
  align-items: center;
  margin: 32px 0 22px;
  flex-wrap: wrap;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  background: #ededed;
  color: #101010;
  padding: 14px 21px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid #ededed;
  transition:
    background 0.2s,
    transform 0.2s;
}
.button:hover {
  background: white;
  transform: translateY(-2px);
}
.textlink {
  font-size: 14px;
  color: #bbb;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.micro {
  font-size: 12px;
  color: #888;
}
.hero-art {
  position: relative;
  overflow: hidden;
  height: 440px;
  display: grid;
  place-items: center;
  isolation: isolate;
  perspective: 1000px;
}
.hero-art:before {
  content: "";
  position: absolute;
  inset: 20px -20px;
  background: radial-gradient(ellipse, #ffffff08, transparent 65%);
  z-index: -1;
}
.orbit {
  position: absolute;
  width: 365px;
  height: 365px;
  border: 1px solid #282828;
  border-radius: 50%;
  transform: rotateX(54deg) rotate(-28deg);
}
.orbit.second {
  width: 460px;
  height: 460px;
  border-style: dashed;
  opacity: 0.5;
}
.orbit:after {
  content: "";
  position: absolute;
  top: 25px;
  left: 70px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #ddd;
  box-shadow: 0 0 15px #fff;
}
.metal-card {
  width: 270px;
  height: 174px;
  border-radius: 16px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(
    125deg,
    #93989e,
    #e0e1e0 25%,
    #aaaeb5 47%,
    #f5f3ed 72%,
    #858c96
  );
  box-shadow:
    inset 0 0 0 1px #ffffffa0,
    inset 0 0 0 4px #8b92971a,
    0 24px 55px #0009;
  color: #23262a;
  transform: rotate(-12deg);
  animation: tilt 9s ease-in-out infinite;
  will-change: transform;
}
.metal-card:before {
  content: "";
  position: absolute;
  inset: -70%;
  background: linear-gradient(
    110deg,
    transparent 34%,
    #bdd9ea55 42%,
    #d7bbdd55 47%,
    #fff9 51%,
    #ffecc244 55%,
    transparent 64%
  );
  animation: foil 9s ease-in-out infinite;
  mix-blend-mode: soft-light;
}
.metal-card:after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background: repeating-linear-gradient(
    135deg,
    #fff3 0px,
    #fff3 0.5px,
    transparent 0.5px,
    transparent 3px
  );
  pointer-events: none;
}
.metal-card > * {
  position: relative;
  z-index: 1;
}
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card-brand {
  font-size: 25px;
  letter-spacing: -0.07em;
  font-weight: 600;
}
.card-icon {
  width: 31px;
  height: 31px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.4;
}
.card-bottom {
  position: absolute;
  bottom: 23px;
  left: 24px;
  right: 24px;
  display: flex;
  justify-content: space-between;
  align-items: end;
  font-size: 8px;
  letter-spacing: 0.16em;
}
.card-bottom b {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
}
.art-caption {
  position: absolute;
  bottom: 5px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #777;
}
.orbit-label {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  color: #c4c4c4;
  background: #080808;
  padding: 7px 10px;
}
.orbit-label svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}
.label-you {
  left: 5px;
  top: 92px;
}
.label-agent {
  right: 3px;
  bottom: 84px;
}
.art-pause {
  position: absolute;
  right: 0;
  top: 6px;
  color: #888;
  border: 0;
  background: none;
  font-size: 11px;
  padding: 8px;
}
.paused .metal-card,
.paused .metal-card:before {
  animation-play-state: paused;
}
.principles {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 0 32px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: #999;
}
.principles span {
  display: flex;
  align-items: center;
  gap: 10px;
}
.principles b {
  font-weight: 400;
  color: #ddd;
}
.section {
  padding: 112px 0;
  border-top: 1px solid var(--line);
}
.section-intro {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 42px;
}
.section-intro .eyebrow {
  margin-bottom: 19px;
}
.section-intro p {
  max-width: 435px;
  font-size: 15px;
}
.story {
  container-type: inline-size;
  background: #080808;
  border: 1px solid #343434;
  border-radius: 14px;
  overflow: hidden;
}
.story-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid #242424;
  font-size: 11px;
  color: #999;
}
.story-top span {
  display: flex;
  align-items: center;
  gap: 9px;
}
.story-top a:hover {
  color: white;
}
.story iframe {
  display: block;
  width: 100%;
  aspect-ratio: 8/5;
  border: 0;
}
.story-controls {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 18px 24px;
  border-top: 1px solid #242424;
  font-size: 12px;
  color: #aaa;
}
.story-controls button {
  background: none;
  border: 0;
  color: #ddd;
  padding: 5px 0;
  min-width: 50px;
  text-align: left;
}
.story-controls input {
  flex: 1;
  min-width: 30px;
  accent-color: #eee;
  cursor: pointer;
}
.time {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.chapters {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid #242424;
}
.chapters button {
  font-size: 12px;
  padding: 18px 14px;
  color: #909090;
  text-align: left;
  background: none;
  border: 0;
  border-right: 1px solid #242424;
  position: relative;
}
.chapters button:last-child {
  border-right: 0;
}
.chapters button span {
  font-size: 10px;
  color: #686868;
  display: block;
  margin-bottom: 7px;
}
.chapters button[aria-pressed="true"] {
  color: #eee;
  background: #151515;
}
.chapters button[aria-pressed="true"]:before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: #eee;
}
.scene-description {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  margin-top: 22px;
  align-items: start;
}
.scene-description p {
  font-size: 13px;
  max-width: 750px;
  min-height: 45px;
}
.scene-description a {
  white-space: nowrap;
  font-size: 12px;
  color: #ccc;
}
.story-note {
  margin-top: 14px;
  font-size: 12px;
  color: #8b8b8b;
}
.origin {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 90px;
}
.origin blockquote {
  margin: 0;
  font-size: clamp(23px, 3vw, 35px);
  line-height: 1.4;
  letter-spacing: -0.03em;
}
.origin p {
  margin-top: 25px;
  font-size: 15px;
}
.origin .eyebrow {
  margin-bottom: 24px;
}
.small-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid #444;
  border-radius: 4px;
  padding: 4px 7px;
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1;
}
.feature-rows {
  border-top: 1px solid #444;
}
.feature-row {
  display: grid;
  grid-template-columns: 60px 1fr 1.4fr;
  gap: 36px;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.feature-row .index {
  font-size: 12px;
  color: #777;
  padding-top: 6px;
}
.feature-row p {
  font-size: 14px;
}
.feature-row h3 {
  font-size: 21px;
}
.networks {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 27px;
  color: #9c9c9c;
  font-size: 12px;
}
.limit-note {
  padding: 24px 0 0;
  font-size: 13px;
  max-width: 850px;
}
.limit-note a,
.fineprint a,
.faq a {
  color: #ddd;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.control-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}
.control-illustration {
  border: 1px solid #363636;
  border-radius: 12px;
  padding: 34px;
  background: radial-gradient(ellipse at top, #ffffff04, transparent 70%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 370px;
}
.policy-line {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid #303030;
  font-size: 13px;
}
.policy-line span {
  color: #999;
}
.policy-line b {
  font-weight: 500;
}
.policy-result {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 13px;
  font-size: 14px;
}
.policy-result svg {
  width: 27px;
  height: 27px;
  stroke: #ddd;
  fill: none;
  stroke-width: 1.4;
}
.control-copy .eyebrow {
  margin-bottom: 20px;
}
.control-copy h2 {
  margin-bottom: 22px;
}
.control-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}
.control-list li {
  padding: 15px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: #aaa;
}
.control-list strong {
  font-weight: 500;
  color: #ddd;
  display: block;
  margin-bottom: 4px;
}
.fineprint {
  font-size: 12px;
  margin-top: 24px;
}
.future-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.future-item {
  border-top: 1px solid #555;
  padding-top: 22px;
}
.future-item .small-label {
  margin-bottom: 27px;
  color: #bbb;
  border-style: dashed;
}
.future-item h3 {
  margin-bottom: 13px;
}
.future-item p {
  font-size: 14px;
}
.future-index {
  font-size: 11px;
  color: #777;
  float: right;
  margin-top: 5px;
}
.future-bottom {
  margin-top: 30px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 12px;
}
.future-bottom p {
  max-width: 680px;
}
.install {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 90px;
}
.install .eyebrow {
  margin-bottom: 20px;
}
.install p {
  margin-top: 18px;
  font-size: 14px;
}
.command {
  display: flex;
  gap: 15px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid #444;
  border-radius: 8px;
  padding: 20px;
  background: #101010;
  margin-top: 28px;
}
.command code {
  font:
    12px/1.5 Menlo,
    Consolas,
    monospace;
  color: #ddd;
  overflow-wrap: anywhere;
}
.command button {
  color: #bbb;
  background: none;
  border: 0;
  font-size: 11px;
  padding: 8px;
  min-width: 55px;
}
.setup {
  margin: 24px 0;
  padding-left: 21px;
}
.setup li {
  padding: 9px 0 9px 10px;
  font-size: 14px;
  color: #aaa;
}
.setup li strong {
  color: #ddd;
  font-weight: 500;
}
.install-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 26px;
}
.faq {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 100px;
}
.faq h2 {
  font-size: 36px;
}
.faq details {
  border-bottom: 1px solid #333;
  padding: 20px 0;
}
.faq details:first-child {
  padding-top: 0;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  position: relative;
  padding-right: 30px;
}
.faq summary:after {
  content: "+";
  position: absolute;
  right: 0;
  color: #888;
}
.faq details[open] summary:after {
  content: "−";
}
.faq details p {
  font-size: 14px;
  padding-top: 16px;
}
.closing {
  border-top: 1px solid var(--line);
  padding: 85px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.closing h2 {
  font-size: clamp(30px, 4vw, 48px);
}
.footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #888;
  font-size: 12px;
  gap: 24px;
}
.footer .wordmark {
  font-size: 22px;
  color: #ccc;
}
.footer nav {
  display: flex;
  gap: 24px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@keyframes tilt {
  0%,
  100% {
    transform: rotateX(9deg) rotateY(0deg) rotateZ(-12deg) translateY(0);
  }
  25% {
    transform: rotateX(0deg) rotateY(13deg) rotateZ(-10deg) translateY(-4px);
  }
  50% {
    transform: rotateX(-9deg) rotateY(0deg) rotateZ(-12deg) translateY(0);
  }
  75% {
    transform: rotateX(0deg) rotateY(-13deg) rotateZ(-14deg) translateY(4px);
  }
}
@keyframes foil {
  0%,
  100% {
    transform: translate(-12%, 0) rotate(-12deg);
  }
  50% {
    transform: translate(12%, 0) rotate(12deg);
  }
}
@container (max-width: 640px) {
  .story iframe {
    aspect-ratio: 8/15;
  }
}
@media (max-width: 900px) {
  html[lang="ko"] .hero h1 {
    font-size: clamp(34px, 5.2vw, 48px);
  }
  .wrap {
    width: calc(100% - 48px);
  }
  .hero {
    gap: 0;
    padding: 65px 0 40px;
    min-height: 540px;
  }
  .hero h1 {
    font-size: 55px;
  }
  .hero-art {
    transform: scale(0.85);
    margin-right: -25px;
  }
  .section {
    padding: 80px 0;
  }
  .section-intro {
    gap: 30px;
  }
  .origin {
    gap: 40px;
  }
  .control-layout {
    gap: 40px;
  }
  .install {
    gap: 40px;
  }
  .faq {
    gap: 40px;
  }
  .feature-row {
    gap: 24px;
    grid-template-columns: 30px 1fr 1.4fr;
  }
  .future-list {
    gap: 25px;
  }
}
@media (max-width: 640px) {
  html[lang="ko"] .hero h1 {
    font-size: clamp(34px, 10.4vw, 60px);
    word-break: keep-all;
  }
  html[lang="ko"] h2,
  html[lang="ko"] h3,
  html[lang="ko"] p {
    word-break: keep-all;
  }
  html {
    scroll-padding-top: 25px;
  }
  .wrap {
    width: calc(100% - 40px);
  }
  .topbar {
    height: 70px;
    gap: 15px;
  }
  .topbar nav {
    gap: 15px;
  }
  .topbar .nav-section {
    display: none;
  }
  .wordmark {
    font-size: 25px;
  }
  .github-link span {
    display: none;
  }
  .hero {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 58px 0 26px;
  }
  .hero h1 {
    font-size: clamp(42px, 11.5vw, 64px);
    margin: 24px 0;
  }
  .hero .intro {
    font-size: 15px;
    max-width: 450px;
  }
  .hero-art {
    height: 350px;
    transform: none;
    margin: 0;
    overflow: hidden;
  }
  .metal-card {
    width: 240px;
    height: 155px;
    padding: 20px;
  }
  .card-bottom {
    left: 20px;
    right: 20px;
    bottom: 20px;
  }
  .orbit {
    width: 300px;
    height: 300px;
  }
  .orbit.second {
    width: 380px;
    height: 380px;
  }
  .label-you {
    top: 70px;
    left: 0;
  }
  .label-agent {
    right: 0;
    bottom: 62px;
  }
  .art-caption {
    bottom: 10px;
  }
  .art-pause {
    top: 18px;
  }
  .principles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    font-size: 11px;
    padding: 25px 0;
  }
  .section {
    padding: 65px 0;
  }
  .section-intro {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 28px;
  }
  .section-intro p {
    font-size: 14px;
  }
  .story iframe {
    aspect-ratio: 8/15;
  }
  .story-top {
    padding: 15px;
    font-size: 10px;
  }
  .story-controls {
    padding: 15px;
    gap: 12px;
  }
  .story-controls .time {
    font-size: 10px;
  }
  .chapters {
    grid-template-columns: repeat(5, 1fr);
  }
  .chapters button {
    font-size: 10px;
    padding: 14px 6px;
    line-height: 1.4;
  }
  .scene-description {
    flex-direction: column;
    gap: 10px;
  }
  .scene-description p {
    min-height: 72px;
  }
  .origin,
  .control-layout,
  .install,
  .faq {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .origin .eyebrow {
    margin-bottom: 16px;
  }
  .feature-row {
    grid-template-columns: 24px 1fr;
    gap: 10px 14px;
    padding: 24px 0;
  }
  .feature-row p {
    grid-column: 2;
  }
  .feature-row h3 {
    font-size: 20px;
  }
  .networks {
    gap: 12px 18px;
    font-size: 11px;
  }
  .control-illustration {
    min-height: 320px;
    padding: 26px;
    order: 2;
  }
  .control-copy {
    order: 1;
  }
  .future-list {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .future-item {
    padding-top: 20px;
  }
  .future-item .small-label {
    margin-bottom: 18px;
  }
  .future-bottom {
    flex-direction: column;
    gap: 18px;
  }
  .command {
    padding: 16px;
    gap: 8px;
  }
  .command code {
    font-size: 11px;
  }
  .closing {
    padding: 62px 0;
    align-items: start;
    flex-direction: column;
  }
  .footer {
    align-items: start;
    flex-wrap: wrap;
    gap: 24px;
  }
  .footer nav {
    gap: 18px;
  }
  .footer .copyright {
    width: 100%;
    order: 3;
  }
  .section-intro h2 {
    max-width: 430px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    animation: none !important;
    transition: none !important;
  }
  .metal-card {
    transform: rotate(-12deg);
  }
}