:root {
  --carbon: #090a0b;
  --carbon-soft: #101214;
  --graphite: #181b1e;
  --graphite-light: #25292d;
  --alloy: #9ba2a9;
  --porcelain: #f2f1ed;
  --paper: #e8e6df;
  --signal: #ff4d36;
  --line-dark: rgba(242, 241, 237, 0.15);
  --line-light: rgba(9, 10, 11, 0.16);
  --wrap: min(100% - 112px, 1360px);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; background: var(--carbon); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--porcelain);
  background: var(--carbon);
  font-family: "IBM Plex Sans", "Aptos", "Segoe UI", Helvetica, Arial, sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; max-width: 100%; }
.wrap { width: var(--wrap); margin-inline: auto; }
.mono { font-family: "IBM Plex Mono", "Cascadia Mono", "SFMono-Regular", Consolas, monospace; }
.skip-link { position: fixed; z-index: 100; top: 12px; left: 12px; padding: 12px 16px; color: var(--carbon); background: var(--porcelain); transform: translateY(-150%); transition: transform 180ms ease; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 5px; }

.site-header {
  position: fixed;
  z-index: 15;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: minmax(190px, 1fr) auto minmax(90px, 1fr);
  align-items: center;
  min-height: 88px;
  padding: 14px 56px;
  background: rgba(9, 10, 11, 0.78);
  border-bottom: 1px solid var(--line-dark);
  backdrop-filter: blur(18px) saturate(120%);
}
.brand { width: 212px; line-height: 0; }
.brand img { width: 100%; height: auto; }
.site-nav { display: flex; gap: clamp(20px, 3vw, 48px); align-items: center; }
.site-nav a, .lang-button {
  color: var(--alloy);
  font: 600 0.69rem/1.2 "IBM Plex Mono", "Cascadia Mono", Consolas, monospace;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}
.site-nav a { position: relative; padding: 12px 0; transition: color 220ms ease; }
.site-nav a::after { position: absolute; right: 0; bottom: 5px; left: 0; height: 1px; content: ""; background: var(--signal); transform: scaleX(0); transform-origin: right; transition: transform 360ms var(--ease); }
.site-nav a:hover, .site-nav a.is-active { color: var(--porcelain); }
.site-nav a.is-active::after, .site-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.language-switcher { justify-self: end; display: flex; align-items: center; gap: 5px; color: var(--alloy); }
.lang-button { width: 42px; height: 42px; padding: 0; color: var(--alloy); cursor: pointer; background: none; border: 1px solid transparent; border-radius: 50%; }
.lang-button:hover, .lang-button.is-active { color: var(--porcelain); border-color: var(--line-dark); }

.hero { position: relative; display: grid; min-height: 100svh; align-items: end; overflow: hidden; padding: 180px 0 clamp(72px, 9vh, 112px); isolation: isolate; }
.hero::before { position: absolute; z-index: -2; inset: 0; content: ""; background: radial-gradient(circle at 75% 44%, rgba(255, 77, 54, 0.065), transparent 22%), linear-gradient(142deg, #090a0b 25%, #111416 72%, #090a0b); }
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: end; }
.hero-copy { max-width: 1050px; }
.eyebrow { margin: 0 0 26px; color: var(--alloy); font: 600 0.7rem/1.3 "IBM Plex Mono", "Cascadia Mono", Consolas, monospace; letter-spacing: 0.12em; text-transform: uppercase; }
h1, h2, h3 { text-wrap: balance; }
h1, h2 { margin: 0; font-weight: 500; letter-spacing: -0.055em; }
h1 { max-width: 1120px; font-size: clamp(4.2rem, 9.1vw, 9.8rem); line-height: 0.9; }
h2 { font-size: clamp(3rem, 6.2vw, 7.1rem); line-height: 0.94; }
.lead { max-width: 690px; margin: 42px 0 0; color: #c0c5ca; font-size: clamp(1.08rem, 1.5vw, 1.42rem); line-height: 1.55; }
.hero-status { display: flex; align-items: center; gap: 10px; margin: 0 0 4px; color: var(--alloy); font-size: 0.67rem; letter-spacing: 0.07em; text-transform: uppercase; writing-mode: vertical-rl; }
.status-dot { width: 7px; height: 7px; flex: 0 0 auto; background: var(--signal); border-radius: 50%; }
.system-field { position: absolute; z-index: -1; top: 10%; right: -8%; width: min(58vw, 850px); aspect-ratio: 1; opacity: 0.78; }
.field-grid { position: absolute; inset: 7% 0 0 7%; opacity: 0.2; background-image: linear-gradient(var(--line-dark) 1px, transparent 1px), linear-gradient(90deg, var(--line-dark) 1px, transparent 1px); background-size: 44px 44px; mask-image: radial-gradient(circle at 52% 48%, #000 20%, transparent 72%); }
.system-core { position: absolute; top: 42%; left: 44%; display: grid; width: 18%; aspect-ratio: 1; place-items: center; color: var(--porcelain); border: 1px solid rgba(242, 241, 237, 0.38); border-radius: 50%; box-shadow: 0 0 0 20px rgba(242, 241, 237, 0.025), 0 0 0 60px rgba(242, 241, 237, 0.018); }
.system-core img { width: 46%; height: auto; filter: invert(1); }
.system-core::after { position: absolute; width: 5px; height: 5px; content: ""; background: var(--signal); border-radius: 50%; transform: translate(0, -900%); }
.system-line { position: absolute; display: block; height: 1px; background: linear-gradient(90deg, transparent, rgba(242, 241, 237, 0.45), transparent); transform: scaleX(0); transform-origin: left; }
.line-one { top: 30%; left: 13%; width: 45%; transform: rotate(20deg) scaleX(0); }
.line-two { top: 55%; left: 51%; width: 38%; transform: rotate(-27deg) scaleX(0); }
.line-three { top: 70%; left: 20%; width: 35%; transform: rotate(-38deg) scaleX(0); }
.system-node { position: absolute; width: 10px; height: 10px; background: var(--carbon); border: 1px solid rgba(242, 241, 237, 0.65); border-radius: 50%; opacity: 0; transform: scale(0.25); }
.node-one { top: 33%; left: 13%; }.node-two { top: 37%; right: 15%; }.node-three { bottom: 20%; left: 22%; }
.hero.is-visible .system-line { animation: draw-line 1000ms var(--ease) 300ms forwards; }
.hero.is-visible .line-one { transform: rotate(20deg) scaleX(0); }.hero.is-visible .line-two { animation-delay: 480ms; transform: rotate(-27deg) scaleX(0); }.hero.is-visible .line-three { animation-delay: 620ms; transform: rotate(-38deg) scaleX(0); }
.hero.is-visible .system-node { animation: reveal-node 420ms var(--ease) 850ms forwards; }.hero.is-visible .node-two { animation-delay: 1040ms; }.hero.is-visible .node-three { animation-delay: 1160ms; }

.statement { color: var(--carbon); background: var(--signal); padding: clamp(110px, 13vw, 190px) 0; }
.statement-grid { display: block; }
.statement .eyebrow, .statement .section-copy { color: rgba(9, 10, 11, 0.68); }
.statement h2 { max-width: 1080px; font-size: clamp(3.1rem, 6.5vw, 7.4rem); }
.section-copy { max-width: 680px; margin: 36px 0 0; color: var(--alloy); font-size: clamp(1.03rem, 1.35vw, 1.28rem); line-height: 1.6; }

.section { position: relative; padding: clamp(110px, 13vw, 190px) 0; overflow: hidden; }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(280px, 0.75fr); gap: clamp(48px, 10vw, 170px); align-items: end; }
.section-heading h2 { max-width: 900px; }
.section-heading .section-copy { align-self: end; margin: 0 0 5px; }
.standard { color: var(--carbon); background: var(--paper); }
.standard .section-copy { color: #62676b; }
.principles { display: grid; grid-template-columns: repeat(4, 1fr); margin: clamp(84px, 10vw, 145px) 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
.principles li { min-height: 320px; padding: 28px clamp(22px, 2.5vw, 40px) 36px; border-left: 1px solid var(--line-light); }
.principles li:last-child { border-right: 1px solid var(--line-light); }
.principles h3 { margin: 120px 0 18px; font-size: clamp(1.35rem, 2vw, 2rem); font-weight: 550; letter-spacing: -0.025em; }
.principles p { margin: 0; color: #62676b; font-size: 0.98rem; line-height: 1.55; }

.capabilities { background: var(--carbon-soft); }
.section-heading.compact h2 { max-width: 820px; }
.capability-list { margin: clamp(80px, 10vw, 140px) 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-dark); }
.capability-list li { display: grid; grid-template-columns: minmax(0, 1fr) 160px; gap: 24px; align-items: center; min-height: 92px; border-bottom: 1px solid var(--line-dark); }
.capability-list strong { font-size: clamp(1.15rem, 2.1vw, 2rem); font-weight: 450; letter-spacing: -0.02em; }
.capability-list i { position: relative; display: block; height: 1px; background: var(--line-dark); transform-origin: right; }
.capability-list i::after { position: absolute; top: -3px; left: 0; width: 7px; height: 7px; content: ""; background: var(--graphite); border: 1px solid var(--alloy); border-radius: 50%; }
.capabilities.is-visible .capability-list i { animation: capability-line 800ms var(--ease) both; }
.capability-list li:nth-child(2) i { animation-delay: 80ms; }.capability-list li:nth-child(3) i { animation-delay: 160ms; }.capability-list li:nth-child(4) i { animation-delay: 240ms; }.capability-list li:nth-child(5) i { animation-delay: 320ms; }.capability-list li:nth-child(6) i { animation-delay: 400ms; }
.capability-map { position: absolute; top: 5%; right: -8%; width: 42vw; height: 48%; opacity: 0.2; pointer-events: none; }
.capability-map span { position: absolute; right: 0; display: block; width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--alloy)); transform-origin: right; }.capability-map span:nth-child(1) { top: 10%; transform: rotate(9deg); }.capability-map span:nth-child(2) { top: 48%; width: 75%; transform: rotate(-12deg); }.capability-map span:nth-child(3) { top: 80%; width: 60%; transform: rotate(18deg); }

.ecosystem { color: var(--carbon); background: var(--porcelain); }
.ecosystem .eyebrow, .ecosystem .section-copy { color: #62676b; }
.company-card { position: relative; display: grid; grid-template-columns: 0.9fr 1.1fr; min-height: 380px; margin-top: clamp(82px, 10vw, 145px); overflow: hidden; border: 1px solid var(--line-light); background: rgba(255, 255, 255, 0.18); }
.company-identity, .company-description { padding: clamp(32px, 4vw, 60px); }
.company-identity { display: grid; place-items: center; }
.company-description { display: flex; flex-direction: column; justify-content: space-between; border-left: 1px solid var(--line-light); }
.company-logo { width: min(100%, 390px); height: auto; }
.company-description p { max-width: 500px; margin: 0; color: #53585b; font-size: clamp(1.02rem, 1.4vw, 1.25rem); line-height: 1.6; }
.company-description a { align-self: flex-start; color: var(--carbon); font: 600 0.72rem/1.2 "IBM Plex Mono", monospace; letter-spacing: 0.06em; text-decoration-thickness: 1px; text-underline-offset: 7px; }
.ecosystem-note { margin: 28px 0 0; color: #6d7275; font-size: 0.64rem; letter-spacing: 0.07em; }

.seal { background: linear-gradient(138deg, #121416, #090a0b 68%); }
.seal-layout { position: relative; z-index: 2; }
.seal-layout h2 { max-width: 820px; }
.seal-layout .section-copy { max-width: 760px; }
.seal-mark { position: absolute; top: 50%; left: -12vw; width: min(45vw, 620px); aspect-ratio: 1; opacity: 0.23; transform: translateY(-50%); pointer-events: none; }
.seal-ring { position: absolute; border: 1px solid var(--porcelain); border-radius: 50%; }.ring-a { inset: 8%; }.ring-b { inset: 29%; opacity: 0.55; }
.seal-mark b { position: absolute; inset: 37%; display: grid; place-items: center; }
.seal-mark b img { width: 58%; height: auto; filter: invert(1); }
.seal-mark i { position: absolute; top: 8%; left: 50%; width: 9px; height: 9px; background: var(--signal); border-radius: 50%; }

.future { position: relative; display: grid; min-height: 92svh; align-items: center; overflow: hidden; color: var(--carbon); background: var(--paper); padding: 130px 0; }
.future h2 { max-width: 1100px; font-size: clamp(4.3rem, 10.5vw, 12rem); line-height: 0.8; }
.future p:last-child { max-width: 580px; margin: 52px 0 0; color: #5f6467; font-size: clamp(1rem, 1.3vw, 1.2rem); line-height: 1.6; }
.future-trace { position: absolute; right: 0; bottom: 20%; width: 42%; height: 1px; background: var(--line-light); transform-origin: right; }
.future-trace i { position: absolute; top: -5px; left: 0; width: 11px; height: 11px; background: var(--paper); border: 1px solid var(--carbon); border-radius: 50%; }
.future.is-visible .future-trace { animation: future-line 950ms var(--ease) both; }

.site-footer { padding: 42px 0 50px; background: var(--carbon); border-top: 1px solid var(--line-dark); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 32px; align-items: end; color: var(--alloy); }
.footer-grid img { width: 160px; }
.footer-grid p { margin: 0; font-size: 0.85rem; }
.footer-grid .mono { font-size: 0.62rem; letter-spacing: 0.06em; }

.observed .eyebrow, .observed h1, .observed h2, .observed .lead, .observed .section-copy { opacity: 0; transform: translateY(18px); transition: opacity 650ms ease, transform 820ms var(--ease); }
.observed h1, .observed h2 { transition-delay: 80ms; }
.observed .lead, .observed .section-copy { transition-delay: 180ms; }
.observed.is-visible .eyebrow, .observed.is-visible h1, .observed.is-visible h2, .observed.is-visible .lead, .observed.is-visible .section-copy { opacity: 1; transform: translateY(0); }

@keyframes draw-line { to { transform: rotate(20deg) scaleX(1); } }
.hero.is-visible .line-two { animation-name: draw-line-two; }.hero.is-visible .line-three { animation-name: draw-line-three; }
@keyframes draw-line-two { to { transform: rotate(-27deg) scaleX(1); } }
@keyframes draw-line-three { to { transform: rotate(-38deg) scaleX(1); } }
@keyframes reveal-node { to { opacity: 1; transform: scale(1); } }
@keyframes capability-line { from { opacity: 0; transform: scaleX(0.25); } to { opacity: 1; transform: scaleX(1); } }
@keyframes future-line { from { transform: scaleX(0.1); } to { transform: scaleX(1); } }

@media (max-width: 980px) {
  :root { --wrap: min(100% - 56px, 900px); }
  .site-header { grid-template-columns: 1fr auto; padding: 12px 28px; }
  .site-nav { display: none; }
  .hero-layout, .section-heading, .seal-layout { grid-template-columns: 1fr; }
  .hero-status { display: none; }
  .section-heading { gap: 34px; }
  .section-heading .section-copy { margin: 0; }
  .principles { grid-template-columns: repeat(2, 1fr); }
  .principles li:nth-child(2) { border-right: 1px solid var(--line-light); }
  .principles li:nth-child(-n+2) { border-bottom: 1px solid var(--line-light); }
  .capability-list li { grid-template-columns: minmax(0, 1fr) 90px; }
  .company-card { grid-template-columns: 1fr 1fr; }
  .seal-mark { left: auto; right: -22vw; }
}

@media (max-width: 640px) {
  :root { --wrap: calc(100% - 38px); }
  html { scroll-padding-top: 76px; }
  .site-header { min-height: 74px; padding: 10px 18px; }
  .brand { width: 164px; }
  .lang-button { width: 38px; height: 38px; }
  .hero { min-height: 100svh; padding: 142px 0 60px; }
  h1 { font-size: clamp(3.6rem, 18vw, 6.4rem); }
  h2 { font-size: clamp(2.8rem, 14vw, 5rem); }
  .system-field { top: 12%; right: -55%; width: 125vw; }
  .principles { grid-template-columns: 1fr; }
  .principles li, .principles li:nth-child(2), .principles li:last-child { min-height: 240px; border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); }
  .principles li:last-child { border-bottom: 0; }
  .principles h3 { margin-top: 72px; }
  html.principles-stack-enhanced .standard { overflow: visible; }
  html.principles-stack-enhanced .principles {
    position: relative;
    display: block;
    height: clamp(250px, 38svh, 310px);
    min-height: 0;
    margin-top: 42px;
    overflow: hidden;
    border: 0;
    background: var(--porcelain);
  }
  html.principles-stack-enhanced .principles li,
  html.principles-stack-enhanced .principles li:nth-child(2),
  html.principles-stack-enhanced .principles li:last-child {
    position: absolute;
    inset: 0;
    display: flex;
    min-height: 0;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    overflow: hidden;
    background: var(--porcelain);
    border: 1px solid rgba(9, 10, 11, 0.2);
    box-shadow: 0 12px 30px rgba(9, 10, 11, 0.08);
    will-change: transform, opacity;
  }
  html.principles-stack-enhanced .principles li::before {
    position: absolute;
    top: 20px;
    right: 20px;
    left: 20px;
    height: 1px;
    content: "";
    background: linear-gradient(90deg, var(--signal) 0 11%, rgba(9, 10, 11, 0.17) 11% 100%);
  }
  html.principles-stack-enhanced .principles li::after {
    position: absolute;
    top: 41px;
    right: 19px;
    width: 36%;
    height: 28%;
    content: "";
    opacity: 0.18;
    background-image: linear-gradient(rgba(9, 10, 11, 0.24) 1px, transparent 1px), linear-gradient(90deg, rgba(9, 10, 11, 0.24) 1px, transparent 1px);
    background-size: 16px 16px;
    mask-image: linear-gradient(135deg, #000, transparent 76%);
    pointer-events: none;
  }
  html.principles-stack-enhanced .principles h3 { position: relative; z-index: 1; margin: 0 0 10px; font-size: clamp(1.55rem, 7.5vw, 2.25rem); }
  html.principles-stack-enhanced .principles p { position: relative; z-index: 1; max-width: 36ch; font-size: 0.88rem; line-height: 1.42; }
  .capability-list li { grid-template-columns: minmax(0, 1fr); min-height: 84px; }
  .capability-list i { display: none; }
  .company-card { grid-template-columns: 1fr; }
  .company-identity, .company-description { min-height: 260px; padding: 30px; }
  .company-description { border-top: 1px solid var(--line-light); border-left: 0; }
  .ecosystem-note { line-height: 1.7; }
  .seal-mark { top: 22%; right: -50vw; width: 100vw; }
  .future { min-height: 80svh; }
  .future h2 { font-size: clamp(4rem, 20vw, 7rem); }
  .future-trace { bottom: 13%; width: 62%; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .observed .eyebrow, .observed h1, .observed h2, .observed .lead, .observed .section-copy { opacity: 1; transform: none; }
  .system-line { transform: scaleX(1); }
  .system-node { opacity: 1; transform: none; }
}