@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Noto+Sans+KR:wght@400;500;600;700;800;900&display=swap");

:root {
  --ink: #07131e;
  --ink-soft: #132432;
  --paper: #f4f2eb;
  --paper-deep: #e8e5dc;
  --white: #fff;
  --muted: #65717a;
  --line: rgba(7, 19, 30, 0.14);
  --signal: #ff5c35;
  --signal-light: #ff8c70;
  --mint: #a8f0c6;
  --blue: #8ab8ff;
  --max-width: 1240px;
  --mono: "IBM Plex Mono", monospace;
  --sans: "Noto Sans KR", "Noto Sans", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  word-break: keep-all;
}

a {
  color: inherit;
  text-decoration: none;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

svg {
  display: block;
}

.capability-icon svg,
.module-mark svg,
.sdk-contracts svg,
.guide-grid svg,
.contact-points svg,
.pillar-icon,
.ai-module-grid article > svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--white);
  color: var(--ink);
  transform: translateY(-150%);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - var(--max-width)) / 2));
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(7, 19, 30, 0.94);
  color: var(--white);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand img {
  display: block;
}

.desktop-nav {
  display: flex;
  gap: 18px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.68);
}

.desktop-nav a:hover {
  color: var(--white);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.language-picker select {
  padding: 9px 28px 9px 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  background: var(--ink-soft);
  color: var(--white);
  font: 500 12px var(--mono);
}

.github-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  border-radius: 4px;
  background: var(--white);
  color: var(--ink);
  font: 600 13px var(--mono);
}

.hero {
  position: relative;
  display: grid;
  min-height: 690px;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 72px;
  align-items: center;
  overflow: hidden;
  padding: 92px max(24px, calc((100vw - var(--max-width)) / 2));
  background: var(--ink);
  color: var(--white);
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to right, black, transparent 90%);
}

.hero::after {
  position: absolute;
  top: -180px;
  right: -140px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: var(--signal);
  content: "";
  filter: blur(180px);
  opacity: 0.12;
}

.hero-copy,
.hero-console {
  position: relative;
  z-index: 2;
}

.eyebrow,
.section-label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 24px;
  color: var(--signal-light);
  font: 600 12px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 6px rgba(255, 92, 53, 0.12);
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(46px, 6vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.065em;
}

.hero h1 span,
.hero h1 strong {
  display: block;
}

.hero h1 strong {
  color: var(--signal);
  font-weight: 900;
}

.hero-description {
  max-width: 650px;
  margin: 30px 0 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 18px;
  line-height: 1.8;
  word-break: keep-all;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--signal);
  color: var(--white);
}

.button-primary:hover {
  background: #ff704e;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.24);
  color: var(--white);
}

.hero-principles {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin: 54px 0 0;
  padding: 0;
  list-style: none;
}

.hero-principles li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-principles span {
  color: var(--signal);
  font: 500 10px var(--mono);
}

.hero-principles b {
  font: 500 11px var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-console {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(17, 35, 49, 0.82);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(16px);
}

.console-bar {
  display: flex;
  height: 48px;
  align-items: center;
  gap: 7px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.console-bar > span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.24);
}

.console-bar > span:first-child {
  background: var(--signal);
}

.console-bar b {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.42);
  font: 500 10px var(--mono);
}

.flow-list {
  padding: 12px 18px;
}

.flow-item {
  display: grid;
  min-height: 68px;
  grid-template-columns: 38px 1fr 24px;
  gap: 10px;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.52);
}

.flow-item:last-child {
  border-bottom: 0;
}

.flow-item.active {
  color: var(--white);
}

.flow-item.complete {
  color: var(--mint);
}

.flow-index {
  font: 500 11px var(--mono);
}

.flow-item b,
.flow-item small {
  display: block;
}

.flow-item b {
  font-size: 14px;
}

.flow-item small {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.34);
  font: 400 9px var(--mono);
}

.flow-item i {
  font-style: normal;
  text-align: center;
}

.pulse {
  width: 8px;
  height: 8px;
  margin: auto;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(255, 92, 53, 0.7);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 8px rgba(255, 92, 53, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 92, 53, 0); }
}

.console-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.console-metrics div {
  padding: 16px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.console-metrics div:last-child {
  border-right: 0;
}

.console-metrics span,
.console-metrics b {
  display: block;
}

.console-metrics span {
  color: rgba(255, 255, 255, 0.42);
  font-size: 10px;
}

.console-metrics b {
  margin-top: 4px;
  font: 600 16px var(--mono);
}

.statement,
.golden-time,
.pillars,
.core-section,
.ai-section,
.architecture-section,
.roadmap-section,
.showcase-section,
.prompt-section {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
}

.statement {
  display: grid;
  grid-template-columns: 0.55fr 1.25fr 0.8fr;
  gap: 48px;
  padding: 130px 0 90px;
  border-bottom: 1px solid var(--line);
}

.golden-time {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  overflow: hidden;
  margin-top: 18px;
  margin-bottom: 110px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

.golden-image {
  min-height: 560px;
}

.golden-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.golden-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 58px;
}

.golden-copy h2 {
  margin: 0;
  font-size: clamp(32px, 3.5vw, 48px);
  line-height: 1.2;
  letter-spacing: -0.055em;
}

.golden-copy > p:not(.section-label):not(.portable-note) {
  margin: 24px 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 15px;
  line-height: 1.85;
}

.golden-copy ol {
  margin: 6px 0 24px;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.golden-copy li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.golden-copy li span {
  color: var(--signal);
  font: 500 10px var(--mono);
}

.golden-copy li b {
  font-size: 13px;
}

.portable-note {
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--mint);
  background: rgba(168, 240, 198, 0.08);
  color: var(--mint);
  font-size: 12px;
  line-height: 1.7;
}

.statement h2,
.section-heading h2,
.cta h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.2;
  letter-spacing: -0.055em;
  word-break: keep-all;
}

.statement > p:last-child,
.section-heading > p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  word-break: keep-all;
}

.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0 0 130px;
}

.sovereignty-section {
  position: relative;
  display: grid;
  width: min(calc(100% - 48px), var(--max-width));
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  align-items: center;
  margin: 0 auto 120px;
  padding: 72px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

.sovereignty-section::after {
  position: absolute;
  right: -120px;
  bottom: -180px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: var(--mint);
  content: "";
  filter: blur(150px);
  opacity: 0.08;
}

.sovereignty-copy,
.sovereignty-diagram,
.security-disclaimer {
  position: relative;
  z-index: 1;
}

.sovereignty-copy h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.2;
  letter-spacing: -0.055em;
}

.sovereignty-copy > p:not(.section-label) {
  margin: 24px 0 30px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 15px;
  line-height: 1.85;
}

.sovereignty-points {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.sovereignty-points div {
  display: flex;
  min-height: 54px;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.035);
}

.sovereignty-points svg,
.sovereignty-node svg {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--mint);
}

.sovereignty-points span {
  font-size: 11px;
  font-weight: 600;
}

.sovereignty-diagram {
  display: grid;
  gap: 14px;
}

.factory-boundary,
.external-boundary {
  padding: 20px;
  border-radius: 7px;
}

.factory-boundary {
  display: grid;
  gap: 10px;
  border: 1px solid rgba(168, 240, 198, 0.32);
  background: rgba(168, 240, 198, 0.05);
}

.factory-boundary > span,
.external-boundary > span {
  margin-bottom: 6px;
  color: var(--mint);
  font: 600 9px var(--mono);
  letter-spacing: 0.1em;
}

.sovereignty-node {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  background: var(--ink-soft);
}

.sovereignty-node.primary {
  border-color: var(--signal);
  background: rgba(255, 92, 53, 0.08);
}

.sovereignty-node b {
  font-size: 12px;
}

.external-boundary {
  border: 1px dashed rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.46);
}

.external-boundary p {
  margin: 4px 0;
  font: 500 12px var(--mono);
}

.external-boundary b {
  color: var(--signal-light);
  font-size: 11px;
}

.security-disclaimer {
  grid-column: 1 / -1;
  margin: -30px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.42);
  font-size: 11px;
}

.pillars article {
  min-height: 290px;
  padding: 34px 26px 24px;
  border-right: 1px solid var(--line);
}

.pillars article:first-child {
  border-left: 1px solid var(--line);
}

.pillar-number {
  color: var(--signal);
  font: 600 11px var(--mono);
}

.pillars h3 {
  margin: 14px 0;
  font-size: 22px;
  letter-spacing: -0.04em;
}

.pillar-icon {
  width: 30px;
  height: 30px;
  margin-top: 58px;
  color: var(--signal);
}

.pillars p,
.capability-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  word-break: keep-all;
}

.core-section,
.ai-section,
.architecture-section,
.roadmap-section {
  padding: 120px 0;
}

.core-section {
  border-top: 1px solid var(--line);
}

.showcase-section {
  padding: 120px 0;
  border-top: 1px solid var(--line);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.showcase-card {
  margin: 0;
  display: flex;
  flex-direction: column;
}

.showcase-frame {
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.18);
}

.showcase-frame img {
  display: block;
  width: 100%;
  height: 380px;
  object-fit: cover;
  object-position: top center;
}

.showcase-card figcaption {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.showcase-card figcaption b {
  font-size: 1.05rem;
  color: var(--ink);
}

.showcase-card figcaption span {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .showcase-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .showcase-frame img {
    height: auto;
  }
}

.section-heading {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 64px;
}

.section-heading .section-label {
  margin-bottom: 18px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability-grid article {
  min-height: 260px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 160ms ease, transform 160ms ease;
}

.capability-grid article:hover {
  position: relative;
  background: var(--white);
  transform: translateY(-4px);
}

.capability-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--signal);
  font: 600 11px var(--mono);
}

.capability-icon svg {
  width: 21px;
  height: 21px;
}

.capability-grid h3 {
  margin: 72px 0 10px;
  font-size: 20px;
  letter-spacing: -0.035em;
}

.architecture-section {
  width: 100%;
  max-width: none;
  padding-right: max(24px, calc((100vw - var(--max-width)) / 2));
  padding-left: max(24px, calc((100vw - var(--max-width)) / 2));
  background: var(--paper-deep);
}

.marketplace-section,
.sdk-section,
.adoption-section,
.contact-section {
  width: min(calc(100% - 48px), var(--max-width));
  margin: 0 auto;
  padding: 120px 0;
}

.marketplace-section {
  border-top: 1px solid var(--line);
}

.marketplace-section .section-heading > div:last-child > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  color: var(--signal);
  font: 600 12px var(--mono);
}

.marketplace-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.marketplace-filter span {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font: 500 10px var(--mono);
}

.marketplace-filter span.active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.marketplace-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.marketplace-grid article {
  min-height: 300px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.22);
  transition: background 160ms ease, transform 160ms ease;
}

.marketplace-grid article:hover {
  position: relative;
  background: var(--white);
  transform: translateY(-3px);
}

.module-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.module-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--signal);
}

.module-head i {
  padding: 5px 8px;
  border-radius: 999px;
  background: rgba(44, 145, 91, 0.1);
  color: #277e4f;
  font: 600 9px var(--mono);
  font-style: normal;
}

.module-head i.planned {
  background: rgba(7, 19, 30, 0.06);
  color: var(--muted);
}

.marketplace-grid article > small {
  display: block;
  margin-top: 38px;
  color: var(--signal);
  font: 600 9px var(--mono);
  letter-spacing: 0.07em;
}

.marketplace-grid h3 {
  margin: 8px 0 10px;
  font-size: 18px;
  letter-spacing: -0.035em;
}

.marketplace-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.module-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 24px;
}

.module-tags span {
  padding: 4px 7px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--muted);
  font: 500 8px var(--mono);
}

.marketplace-grid .marketplace-request {
  display: flex;
  flex-direction: column;
  background: var(--signal);
  color: var(--white);
}

.marketplace-request > small,
.marketplace-request p {
  color: rgba(255, 255, 255, 0.72) !important;
}

.marketplace-request a {
  display: flex;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  font-weight: 700;
}

.sdk-section {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 70px;
  align-items: center;
  width: 100%;
  max-width: none;
  padding-right: max(24px, calc((100vw - var(--max-width)) / 2));
  padding-left: max(24px, calc((100vw - var(--max-width)) / 2));
  background: var(--ink);
  color: var(--white);
}

.sdk-copy h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.2;
  letter-spacing: -0.055em;
}

.sdk-copy > p:not(.section-label) {
  max-width: 690px;
  margin: 24px 0 32px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.85;
}

.sdk-contracts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.sdk-contracts article {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  min-height: 112px;
  padding: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.sdk-contracts article > span {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 4px;
  color: var(--signal-light);
}

.sdk-contracts b {
  font-size: 13px;
}

.sdk-contracts p {
  margin: 4px 0 0;
  color: rgba(255, 255, 255, 0.44);
  font-size: 11px;
  line-height: 1.65;
}

.sdk-code {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: var(--ink-soft);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
}

.sdk-code pre {
  min-height: 420px;
  margin: 0;
  padding: 28px;
  overflow: auto;
  color: rgba(255, 255, 255, 0.7);
  font: 400 11px/1.85 var(--mono);
}

.sdk-status {
  display: flex;
  justify-content: space-between;
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font: 500 10px var(--mono);
}

.sdk-status span {
  color: rgba(255, 255, 255, 0.36);
}

.sdk-status b {
  color: var(--signal-light);
}

.adoption-section {
  border-bottom: 1px solid var(--line);
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.guide-grid a {
  display: grid;
  min-height: 180px;
  grid-template-columns: 46px 1fr 20px;
  gap: 16px;
  align-items: center;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 160ms ease;
}

.guide-grid a:hover {
  background: var(--white);
}

.guide-grid a > span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--signal);
}

.guide-grid h3 {
  margin: 0 0 7px;
  font-size: 17px;
}

.guide-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.65;
}

.guide-grid i {
  color: var(--signal);
  font-style: normal;
}

.adoption-route {
  display: grid;
  grid-template-columns: 1fr 30px 1fr 30px 1fr 30px 1fr;
  gap: 10px;
  align-items: center;
  margin-top: 28px;
}

.adoption-route div {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.3);
}

.adoption-route span {
  color: var(--signal);
  font: 600 10px var(--mono);
}

.adoption-route b {
  font-size: 12px;
}

.adoption-route i {
  color: var(--signal);
  font-style: normal;
  text-align: center;
}

.ai-section {
  padding-top: 120px;
  padding-bottom: 120px;
}

.ai-module-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.ai-module-grid article {
  min-height: 210px;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.28);
}

.ai-module-grid span {
  color: var(--signal);
  font: 600 9px var(--mono);
  letter-spacing: 0.06em;
}

.ai-module-grid h3 {
  margin: 12px 0 8px;
  font-size: 18px;
  letter-spacing: -0.035em;
}

.ai-module-grid article > svg {
  width: 30px;
  height: 30px;
  margin-top: 42px;
  color: var(--signal);
}

.ai-module-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.safety-note {
  display: grid;
  grid-template-columns: 0.3fr 0.7fr;
  gap: 30px;
  margin-top: 18px;
  padding: 24px;
  border-left: 3px solid var(--signal);
  background: var(--ink);
  color: var(--white);
}

.safety-note b {
  color: var(--signal-light);
  font: 600 12px var(--mono);
}

.safety-note p {
  margin: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
}

.architecture-diagram {
  display: grid;
  grid-template-columns: 1fr 48px 1fr 48px 1fr;
  gap: 16px;
  align-items: center;
}

.arch-column {
  display: grid;
  gap: 10px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.44);
}

.arch-column.highlighted {
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 22px 60px rgba(7, 19, 30, 0.18);
}

.arch-label {
  margin-bottom: 6px;
  color: var(--signal);
  font: 600 10px var(--mono);
  letter-spacing: 0.12em;
}

.arch-node {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
}

.highlighted .arch-node {
  border-color: rgba(255, 255, 255, 0.12);
  background: var(--ink-soft);
}

.arch-node b,
.arch-node small {
  display: block;
}

.arch-node b {
  font-size: 14px;
}

.arch-node small {
  margin-top: 4px;
  color: var(--muted);
  font: 400 10px var(--mono);
}

.highlighted .arch-node small {
  color: rgba(255, 255, 255, 0.46);
}

.arch-arrow {
  color: var(--signal);
  font: 600 26px var(--mono);
  text-align: center;
}

.roadmap {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.prompt-section {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 70px;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 120px;
  border-top: 1px solid var(--line);
}

.contact-section {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 80px;
  align-items: start;
  border-top: 1px solid var(--line);
}

.contact-intro {
  position: sticky;
  top: 110px;
}

.contact-intro h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.2;
  letter-spacing: -0.055em;
}

.contact-intro > p:not(.section-label) {
  margin: 24px 0 30px;
  color: var(--muted);
  line-height: 1.85;
}

.contact-points {
  display: grid;
  gap: 10px;
}

.contact-points div {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 600;
}

.contact-points svg {
  width: 20px;
  height: 20px;
  color: var(--signal);
}

.contact-form {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 20px 60px rgba(7, 19, 30, 0.07);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-form label {
  display: block;
}

.contact-form label > span {
  display: block;
  margin-bottom: 7px;
  font-size: 12px;
  font-weight: 700;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(7, 19, 30, 0.18);
  border-radius: 4px;
  outline: none;
  background: var(--white);
  color: var(--ink);
  font: 400 14px var(--sans);
  transition: border 150ms ease, box-shadow 150ms ease;
}

.contact-form input,
.contact-form select {
  height: 46px;
  padding: 0 12px;
}

.contact-form textarea {
  min-height: 150px;
  padding: 12px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(255, 92, 53, 0.1);
}

.contact-form [aria-invalid="true"] {
  border-color: #c83232;
}

.form-wide {
  grid-column: 1 / -1;
}

.field-error {
  display: block;
  min-height: 17px;
  margin-top: 4px;
  color: #b32d2d;
  font-size: 10px;
}

.form-notice {
  margin: 16px 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.65;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.form-submit {
  min-width: 142px;
  border: 0;
  cursor: pointer;
  font: 700 14px var(--sans);
}

.form-submit:disabled {
  cursor: wait;
  opacity: 0.72;
}

.submit-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

.form-submit.loading .submit-spinner {
  display: block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-status {
  margin: 0;
  font-size: 12px;
}

.form-status.success {
  color: #277e4f;
}

.form-status.error {
  color: #b32d2d;
}

.prompt-copy h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.2;
  letter-spacing: -0.055em;
}

.prompt-copy > p:not(.section-label) {
  max-width: 650px;
  margin: 24px 0;
  color: var(--muted);
  line-height: 1.85;
}

.prompt-copy ul {
  display: grid;
  gap: 9px;
  padding: 0;
  list-style: none;
}

.prompt-copy li::before {
  margin-right: 10px;
  color: var(--signal);
  content: "✓";
  font-family: var(--mono);
}

.button-dark {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
}

.prompt-terminal {
  overflow: hidden;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 26px 70px rgba(7, 19, 30, 0.2);
}

.prompt-terminal pre {
  min-height: 400px;
  margin: 0;
  padding: 28px;
  overflow: auto;
  color: rgba(255, 255, 255, 0.74);
  font: 400 11px/1.8 var(--mono);
}

.code-comment {
  color: rgba(255, 255, 255, 0.34);
}

.code-value {
  color: var(--mint);
}

.llm-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.llm-links a {
  display: flex;
  justify-content: space-between;
  padding: 16px 20px;
  color: var(--signal-light);
  font: 500 11px var(--mono);
}

.llm-links a:first-child {
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.roadmap li {
  position: relative;
  min-height: 190px;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
}

.roadmap li:first-child {
  border-left: 1px solid var(--line);
}

.roadmap li::before {
  position: absolute;
  top: -5px;
  left: 18px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--muted);
  border-radius: 50%;
  background: var(--paper);
  content: "";
}

.roadmap li.done::before,
.roadmap li.current::before {
  border-color: var(--signal);
  background: var(--signal);
}

.roadmap li.current {
  background: var(--white);
}

.roadmap > li > span {
  color: var(--muted);
  font: 500 11px var(--mono);
}

.roadmap div {
  position: absolute;
  right: 18px;
  bottom: 24px;
  left: 18px;
}

.roadmap b,
.roadmap small {
  display: block;
}

.roadmap b {
  min-height: 44px;
  font-size: 14px;
  line-height: 1.5;
}

.roadmap small {
  margin-top: 10px;
  color: var(--muted);
  font: 500 9px var(--mono);
  text-transform: uppercase;
}

.current small,
.done small {
  color: var(--signal);
}

.cta {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: end;
  padding: 100px max(24px, calc((100vw - var(--max-width)) / 2));
  background: var(--signal);
  color: var(--white);
}

.cta .section-label {
  color: var(--ink);
}

.cta-copy p {
  max-width: 520px;
  margin: 0;
  font-size: 17px;
  line-height: 1.8;
  word-break: keep-all;
}

.button-light {
  background: var(--white);
  color: var(--ink);
}

.button-outline-light {
  border-color: rgba(255, 255, 255, 0.62);
  color: var(--white);
}

footer {
  display: flex;
  min-height: 112px;
  align-items: center;
  gap: 32px;
  padding: 24px max(24px, calc((100vw - var(--max-width)) / 2));
  background: var(--ink);
  color: var(--white);
}

footer p {
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.42);
  font: 400 10px var(--mono);
}

footer > div {
  display: flex;
  gap: 20px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

@media (max-width: 980px) {
  .desktop-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .hero-console {
    max-width: 680px;
  }

  .statement {
    grid-template-columns: 1fr 1.5fr;
  }

  .golden-time {
    grid-template-columns: 1fr;
  }

  .sovereignty-section {
    grid-template-columns: 1fr;
  }

  .golden-image {
    min-height: 400px;
  }

  .statement > p:last-child {
    grid-column: 2;
  }

  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }

  .pillars article:nth-child(3) {
    border-left: 1px solid var(--line);
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .architecture-diagram {
    grid-template-columns: 1fr;
  }

  .arch-arrow {
    transform: rotate(90deg);
  }

  .roadmap {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 34px;
  }

  .ai-module-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .marketplace-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sdk-section {
    grid-template-columns: 1fr;
  }

  .guide-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-section {
    grid-template-columns: 1fr;
  }

  .contact-intro {
    position: static;
  }

  .prompt-section {
    grid-template-columns: 1fr;
  }

  .cta {
    grid-template-columns: 1fr;
    gap: 34px;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 62px;
  }

  .brand span {
    font-size: 14px;
  }

  .github-link span:first-child {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .hero h1 {
    font-size: clamp(42px, 13vw, 62px);
  }

  .hero-description {
    font-size: 16px;
  }

  .hero-principles {
    display: grid;
    gap: 12px;
  }

  .console-metrics {
    grid-template-columns: 1fr;
  }

  .console-metrics div {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .statement {
    grid-template-columns: 1fr;
    padding: 90px 0 64px;
  }

  .golden-time {
    width: 100%;
    margin-bottom: 72px;
    border-radius: 0;
  }

  .golden-image {
    min-height: 300px;
  }

  .golden-copy {
    padding: 38px 24px;
  }

  .sovereignty-section {
    width: 100%;
    margin-bottom: 72px;
    padding: 56px 24px;
    border-radius: 0;
  }

  .sovereignty-points {
    grid-template-columns: 1fr;
  }

  .statement > p:last-child {
    grid-column: auto;
  }

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

  .pillars article,
  .pillars article:nth-child(3) {
    min-height: 230px;
    border-left: 1px solid var(--line);
  }

  .pillars h3 {
    margin-top: 14px;
  }

  .pillar-icon {
    margin-top: 34px;
  }

  .core-section,
  .ai-section,
  .architecture-section,
  .roadmap-section {
    padding-top: 88px;
    padding-bottom: 88px;
  }

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

  .capability-grid article {
    min-height: 220px;
  }

  .capability-grid h3 {
    margin-top: 48px;
  }

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

  .ai-module-grid {
    grid-template-columns: 1fr;
  }

  .marketplace-section,
  .adoption-section,
  .contact-section {
    padding-top: 88px;
    padding-bottom: 88px;
  }

  .marketplace-grid,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .sdk-contracts {
    grid-template-columns: 1fr;
  }

  .adoption-route {
    grid-template-columns: 1fr;
  }

  .adoption-route i {
    transform: rotate(90deg);
  }

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

  .form-wide {
    grid-column: auto;
  }

  .contact-form {
    padding: 24px;
  }

  .form-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .safety-note {
    grid-template-columns: 1fr;
  }

  .roadmap li:nth-child(odd) {
    border-left: 1px solid var(--line);
  }

  .cta {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  footer {
    flex-wrap: wrap;
  }

  footer p {
    order: 3;
    width: 100%;
  }

  footer > div {
    margin-left: auto;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}