:root {
  --paper: #f3ede1;
  --paper-2: #ece4d3;
  --paper-3: #e4dac4;
  --rule: #2a2520;
  --rule-soft: rgba(42, 37, 32, 0.18);
  --rule-hair: rgba(42, 37, 32, 0.1);
  --ink: #1a1612;
  --ink-2: #3d352c;
  --ink-3: #6b5f51;
  --ink-4: #8f826f;
  --accent: #b44a1a;
  --accent-2: #7a3410;
  --ok: #4a6b2f;
  --warn: #a86a1a;

  --font-serif: "Newsreader", "Noto Serif SC", Georgia, serif;
  --font-sans: "IBM Plex Sans", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  --maxw: 1320px;
  --gutter: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 18%, rgba(180, 74, 26, 0.12), transparent 22%),
    radial-gradient(circle at 86% 16%, rgba(122, 52, 16, 0.07), transparent 20%),
    linear-gradient(rgba(26, 22, 18, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 22, 18, 0.02) 1px, transparent 1px),
    var(--paper);
  background-size: auto, auto, 28px 28px, 28px 28px, auto;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

button {
  font: inherit;
}

.wrap {
  width: min(var(--maxw), calc(100% - 48px));
  margin: 0 auto;
}

.page-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule-soft);
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.logo-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.logo-mark svg {
  display: block;
  width: 100%;
  height: 100%;
}

.logo-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.logo-name {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.logo-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: 18px;
}

.nav a,
.contact-key,
.signal-kicker,
.feat-idx,
.stack-name,
.sec-label,
.hero-kicker,
.term-title,
.meta-line,
.foot-col h5,
.foot-bottom,
.process-meta {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.nav a {
  position: relative;
  font-size: 13px;
  color: var(--ink-2);
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left center;
  background: var(--accent);
  transition: transform 0.15s ease;
}

.nav a:hover::after {
  transform: scaleX(1);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.lang-toggle {
  display: flex;
  border: 1px solid var(--rule-soft);
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--ink-3);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.lang-btn.is-on {
  background: var(--ink);
  color: var(--paper);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: var(--accent);
  border-color: var(--accent);
}

.btn.ghost {
  background: transparent;
  color: var(--ink);
}

.btn.ghost:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  margin-left: auto;
  border: 1px solid var(--rule-soft);
  background: var(--paper);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle span {
  width: 16px;
  height: 1px;
  background: var(--ink);
}

section {
  position: relative;
  padding: 104px 0;
  border-top: 1px solid var(--rule-soft);
  scroll-margin-top: 88px;
}

section:first-of-type {
  border-top: 0;
}

.sunken {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.2), transparent 18%), var(--paper-2);
}

.hero {
  min-height: calc(100svh - 64px);
  padding-top: 84px;
  padding-bottom: 96px;
  overflow: clip;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: start;
}

.hero-aura {
  position: absolute;
  border-radius: 50%;
  filter: blur(22px);
  opacity: 0.5;
  animation: drift 14s ease-in-out infinite;
}

.hero-aura-left {
  top: 90px;
  left: -60px;
  width: 220px;
  height: 220px;
  background: rgba(180, 74, 26, 0.16);
}

.hero-aura-right {
  right: 30px;
  top: 140px;
  width: 180px;
  height: 180px;
  background: rgba(122, 52, 16, 0.1);
  animation-delay: -5s;
}

.hero-copy,
.terminal {
  position: relative;
  z-index: 1;
}

.hero-title,
.section-head .hx,
.signal h3,
.feat h3,
.cap-item h4,
.process-copy h3,
.product-panel .hx,
.contact-copy .hx {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.hero-title {
  max-width: 11ch;
  margin-top: 24px;
  font-size: clamp(52px, 6.4vw, 96px);
  line-height: 1.04;
}

.hero-title em {
  font-style: italic;
  color: var(--accent);
}

.hero-kicker,
.sec-label {
  font-size: 13px;
  color: var(--ink-3);
}

.hero-sub,
.section-copy,
.company-copy p,
.signal p,
.feat p,
.cap-item p,
.process-copy p,
.foot-copy {
  color: var(--ink-2);
}

.hero-sub {
  max-width: 54ch;
  margin-top: 32px;
  font-size: 18px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin-top: 40px;
  padding: 14px 0;
  border-top: 1px dashed var(--rule-soft);
  border-bottom: 1px dashed var(--rule-soft);
  font-size: 13px;
  color: var(--ink-3);
}

.meta-line strong {
  color: var(--ink);
  font-weight: 500;
}

.hero-notes {
  display: grid;
  gap: 14px;
  margin-top: 32px;
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-2);
}

.hero-note-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  flex: none;
}

.terminal {
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.08)), var(--paper-2);
  box-shadow: 6px 6px 0 var(--rule-soft);
}

.term-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule-soft);
}

.term-dots {
  display: flex;
  gap: 6px;
}

.term-dot {
  width: 9px;
  height: 9px;
  border: 1px solid var(--ink-3);
  border-radius: 50%;
}

.term-title {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-3);
}

.term-title strong {
  color: var(--ink);
  font-weight: 500;
}

.term-body {
  padding: 18px 18px 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
}

.term-line {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--rule-hair);
}

.term-line:last-child {
  border-bottom: 0;
}

.gutter {
  color: var(--ink-3);
  font-size: 12px;
}

.term-cmd {
  color: var(--ink);
}

.term-kv {
  color: var(--ink-2);
}

.term-cmd strong {
  color: var(--accent-2);
}

.cursor {
  width: 8px;
  height: 1.05em;
  background: var(--ink);
  animation: blink 1s steps(2) infinite;
}

.term-foot {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 0 18px 18px;
}

.term-chip {
  padding: 7px 10px;
  border: 1px solid var(--rule-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.section-head {
  max-width: 920px;
  margin-bottom: 8px;
}

.section-head .hx {
  margin-top: 14px;
  font-size: clamp(38px, 4.4vw, 56px);
  line-height: 1.08;
}

.section-copy {
  max-width: 58ch;
  margin-top: 18px;
  font-size: 17px;
  line-height: 1.7;
}

.company-grid,
.product-grid,
.contact-band {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  margin-top: 52px;
}

.company-copy p,
.product-lead {
  max-width: 58ch;
  font-size: 18px;
  line-height: 1.76;
}

.signals {
  border: 1px solid var(--rule-soft);
  background: rgba(255, 255, 255, 0.14);
}

.signal {
  padding: 30px 32px;
  border-bottom: 1px solid var(--rule-soft);
}

.signal:last-child {
  border-bottom: 0;
}

.signal-kicker,
.feat-idx,
.stack-name,
.contact-key,
.process-meta,
.foot-col h5,
.foot-bottom {
  font-size: 13px;
  color: var(--ink-3);
}

.signal h3,
.feat h3,
.cap-item h4,
.process-copy h3 {
  margin-top: 12px;
  font-size: 26px;
  line-height: 1.18;
}

.signal p,
.feat p,
.cap-item p,
.process-copy p {
  margin-top: 14px;
  line-height: 1.72;
}

.features {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1px;
  margin-top: 52px;
  border: 1px solid var(--rule-soft);
  background: var(--rule-soft);
}

.feat {
  min-height: 260px;
  padding: 32px;
  background: var(--paper);
}

.span-6 {
  grid-column: span 6;
}

.span-4 {
  grid-column: span 4;
}

.product-panel {
  position: sticky;
  top: clamp(72px, 10vh, 104px);
  align-self: start;
  padding: 32px;
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.08)), var(--paper-2);
  box-shadow: 6px 6px 0 var(--rule-soft);
}

.stack {
  margin-top: 32px;
}

.stack-row {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px dashed var(--rule-soft);
}

.stack-row:first-child {
  border-top: 1px solid var(--rule-soft);
}

.stack-desc {
  color: var(--ink-2);
}

.product-copy {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.cap-flow {
  border: 1px solid var(--rule-soft);
  background: rgba(255, 255, 255, 0.12);
  padding: 22px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
}

.cap-flow .row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--rule-soft);
}

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

.cap-flow .tag {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.cap-flow .tag.ai {
  color: var(--accent);
}

.cap-flow .tag.sys {
  color: var(--ok);
}

.cap-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.cap-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--rule-soft);
}

.cap-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.cap-item .n {
  color: var(--ink-4);
  font-family: var(--font-mono);
  font-size: 24px;
}

.process-list {
  margin-top: 36px;
  border: 1px solid var(--rule-soft);
  background: var(--rule-soft);
}

.process-step {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  padding: 24px 28px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--rule-soft);
}

.process-step:last-child {
  border-bottom: 0;
}

.process-meta {
  display: grid;
  gap: 8px;
  align-content: start;
}

.contact-band {
  align-items: stretch;
  padding: 40px;
  border: 1px solid var(--rule);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.26), transparent 40%), var(--paper-2);
  box-shadow: 6px 6px 0 var(--rule-soft);
}

.contact-links {
  display: grid;
  gap: 1px;
  border: 1px solid var(--rule-soft);
  background: var(--rule-soft);
}

.contact-links a {
  display: grid;
  gap: 10px;
  padding: 22px;
  background: var(--paper);
  transition: background 0.15s ease;
}

.contact-links a:hover {
  background: color-mix(in srgb, var(--paper) 90%, var(--accent));
}

.contact-links strong {
  font-size: 17px;
  color: var(--ink);
}

footer {
  padding: 72px 0 32px;
  border-top: 1px solid var(--rule-soft);
}

.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
}

.foot-copy {
  max-width: 38ch;
  margin-top: 22px;
  line-height: 1.7;
}

.foot-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.foot-col h5 {
  margin: 0 0 4px;
}

.foot-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--rule-soft);
}

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

.motion-ok .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.profile-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}

.profile-list {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.profile-row {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 24px;
  padding: 18px 0;
  border-top: 1px solid var(--rule-hair);
}

.profile-row:last-child {
  border-bottom: 1px solid var(--rule-hair);
}

.profile-row dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.5;
  padding-top: 4px;
}

.profile-row dd {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

.scope-panel {
  padding: 32px 34px 30px;
  border: 1px solid var(--rule-soft);
  background: color-mix(in srgb, var(--paper-2) 72%, transparent);
  box-shadow: 4px 4px 0 var(--rule-soft);
}

.scope-panel .sec-label {
  display: block;
  margin: 0 0 18px;
  font-size: 12px;
  color: var(--ink-3);
}

.scope-list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: scope;
}

.scope-list li {
  counter-increment: scope;
  position: relative;
  padding: 14px 0 14px 48px;
  border-top: 1px solid var(--rule-hair);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-2);
}

.scope-list li::before {
  content: counter(scope, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.scope-list li:last-child {
  border-bottom: 1px solid var(--rule-hair);
  color: var(--ink-3);
  font-style: italic;
}

.scope-foot {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-3);
  font-family: var(--font-sans);
}

.vision-foot {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--rule-hair);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-3);
  font-style: italic;
  font-family: var(--font-sans);
}

.scope-note {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-3);
  font-family: var(--font-sans);
}

.company-facts {
  display: flex;
  flex-direction: column;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(14px, -12px, 0);
  }
}

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

  .hero-aura,
  .cursor {
    animation: none;
  }

  .motion-ok .reveal,
  .motion-ok .reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .nav a::after,
  .contact-links a {
    transition: none;
  }
}

@media (max-width: 1040px) {
  .hero-grid,
  .company-grid,
  .product-grid,
  .contact-band,
  .foot-grid,
  .profile-grid {
    grid-template-columns: 1fr;
  }

  .product-panel {
    position: relative;
    top: auto;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 12px 24px 18px;
    border-bottom: 1px solid var(--rule-soft);
    background: color-mix(in srgb, var(--paper) 96%, white);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--rule-hair);
  }

  .nav a:last-child {
    border-bottom: 0;
  }

  .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 860px) {
  .features {
    grid-template-columns: 1fr;
  }

  .span-6,
  .span-4 {
    grid-column: span 1;
  }

  .caps,
  .process-step,
  .stack-row,
  .contact-links a,
  .cap-flow .row,
  .profile-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .profile-row dt {
    padding-top: 0;
  }
}

@media (max-width: 720px) {
  .wrap {
    width: min(calc(100% - 32px), var(--maxw));
  }

  .topbar-inner {
    flex-wrap: wrap;
    padding: 12px 0;
  }

  .topbar-right {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    padding-top: 48px;
    padding-bottom: 56px;
  }

  section {
    padding: 68px 0;
  }

  .hero-title {
    max-width: none;
    font-size: clamp(42px, 16vw, 70px);
  }

  .contact-band,
  .product-panel,
  .terminal {
    box-shadow: 4px 4px 0 var(--rule-soft);
  }

  .foot-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}