:root {
  --bg: #0a0b0d;
  --bg-elevated: #101216;
  --bg-soft: #15181d;
  --text: #f4f1ea;
  --text-muted: #a9adb7;
  --text-dim: #777d89;
  --accent: #9db5ff;
  --success: #9fe0bd;
  --line: rgba(244, 241, 234, 0.14);
  --line-strong: rgba(244, 241, 234, 0.25);
  --shadow: 0 24px 80px rgba(0,0,0,.32);
  --radius: 24px;
  --shell: 1240px;
  --gutter: clamp(20px, 4vw, 56px);
  --section: clamp(88px, 11vw, 160px);
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 10%, rgba(157,181,255,.08), transparent 30rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }

::selection {
  background: var(--accent);
  color: var(--bg);
}

.shell {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}

.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: 999;
  transform: translateY(-200%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform .2s ease;
}
.skip-link:focus { transform: translateY(0); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled {
  background: rgba(10,11,13,.82);
  border-color: var(--line);
  backdrop-filter: blur(16px);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  text-decoration: none;
  min-width: 0;
}
.brand-name {
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -.02em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 13px;
  color: var(--text-muted);
}
.site-nav > a:not(.button) {
  text-decoration: none;
  transition: color .2s ease;
}
.site-nav > a:not(.button):hover { color: var(--text); }

.nav-toggle { display: none; }

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -.01em;
  box-shadow: 0 10px 24px rgba(0,0,0,.22);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(0,0,0,.30);
}
.button-small { min-height: 42px; padding-inline: 16px; font-size: 13px; }
.button-large { min-height: 60px; padding-inline: 26px; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 650;
}
.text-link span { color: var(--accent); transition: transform .2s ease; }
.text-link:hover span { transform: translate(2px, 2px); }
.text-link-large { font-size: 17px; }

.hero {
  min-height: 100svh;
  padding-top: 116px;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.hero-grid {
  min-height: calc(100svh - 210px);
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr);
  gap: clamp(48px, 7vw, 108px);
  align-items: center;
}

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

.eyebrow,
.section-index,
.card-top,
.logic,
.work-status {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 10px;
  font-weight: 750;
}

.eyebrow { color: var(--accent); margin: 0 0 22px; }

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 900px;
  margin-bottom: 30px;
  font-size: clamp(52px, 7.1vw, 104px);
  line-height: .94;
  letter-spacing: -.066em;
  font-weight: 560;
}

h2 {
  margin-bottom: 28px;
  max-width: 960px;
  font-size: clamp(38px, 5.1vw, 72px);
  line-height: 1.02;
  letter-spacing: -.052em;
  font-weight: 560;
}

h3 {
  margin-bottom: 14px;
  font-size: clamp(24px, 2.4vw, 36px);
  line-height: 1.08;
  letter-spacing: -.035em;
  font-weight: 580;
}

.hero-lead {
  max-width: 690px;
  color: var(--text-muted);
  font-size: clamp(18px, 1.55vw, 22px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 36px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 46px;
  color: var(--text-dim);
  font-size: 12px;
}
.hero-meta span + span::before {
  content: "•";
  margin-right: 20px;
  color: var(--line-strong);
}

.system-visual {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 1;
  justify-self: end;
  border: 1px solid var(--line);
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(157,181,255,.12), transparent 31%),
    rgba(255,255,255,.012);
  box-shadow: inset 0 0 80px rgba(157,181,255,.03), var(--shadow);
}

.system-visual::before,
.system-visual::after,
.system-orbit {
  content: "";
  position: absolute;
  inset: 12%;
  border-radius: 50%;
  border: 1px solid var(--line);
}
.system-visual::after { inset: 31%; }
.system-orbit {
  inset: 21%;
  border-color: rgba(157,181,255,.22);
  border-style: dashed;
  animation: spin 24s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.system-core {
  position: absolute;
  inset: 38%;
  display: grid;
  place-items: center;
  align-content: center;
  text-align: center;
  border: 1px solid rgba(157,181,255,.32);
  border-radius: 50%;
  background: var(--bg-elevated);
  box-shadow: 0 0 40px rgba(157,181,255,.10);
}
.system-core span {
  color: var(--accent);
  font-size: clamp(22px, 3vw, 40px);
  line-height: 1;
  letter-spacing: -.03em;
}
.system-core strong {
  margin-top: 7px;
  color: var(--text-muted);
  font-size: 9px;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.system-node {
  position: absolute;
  width: 120px;
  min-height: 74px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(16,18,22,.92);
  box-shadow: 0 12px 35px rgba(0,0,0,.28);
}
.system-node span,
.system-node small {
  display: block;
  color: var(--text-dim);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: .12em;
}
.system-node strong {
  display: block;
  margin-block: 3px 1px;
  font-size: 13px;
  letter-spacing: .03em;
}
.node-web { top: 6%; left: 50%; transform: translateX(-50%); }
.node-search { right: -4%; top: 50%; transform: translateY(-50%); }
.node-convert { bottom: 6%; left: 50%; transform: translateX(-50%); }
.node-systems { left: -4%; top: 50%; transform: translateY(-50%); }

.proof-strip {
  position: relative;
  z-index: 3;
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 18px 28px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  color: var(--text-dim);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .11em;
}
.proof-strip strong { color: var(--text-muted); font-size: 11px; }
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 18px rgba(159,224,189,.45);
}

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

.section-model {
  background: linear-gradient(180deg, rgba(255,255,255,.018), transparent);
}

.section-index {
  color: var(--text-dim);
  padding-top: 8px;
}

.split-intro {
  display: grid;
  grid-template-columns: minmax(120px, .42fr) minmax(0, 1.58fr);
  gap: clamp(36px, 7vw, 100px);
}

.lead {
  max-width: 790px;
  color: var(--text-muted);
  font-size: clamp(18px, 1.5vw, 22px);
  line-height: 1.65;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(120px, .42fr) minmax(0, 1.12fr) minmax(240px, .46fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
  margin-bottom: 64px;
}
.section-heading h2 { margin-bottom: 0; }
.section-heading > p:last-child {
  margin-bottom: 4px;
  color: var(--text-muted);
  max-width: 440px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.capability-card {
  min-height: 470px;
  padding: clamp(28px, 4vw, 52px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.01);
  transition: background .25s ease;
}
.capability-card:hover { background: rgba(255,255,255,.026); }
.card-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: clamp(80px, 9vw, 130px);
  color: var(--text-dim);
}
.card-top span:last-child { color: var(--accent); }
.capability-card p { color: var(--text-muted); max-width: 590px; }
.capability-card ul {
  list-style: none;
  margin: 28px 0 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 13px;
}
.capability-card li {
  display: flex;
  gap: 10px;
  padding-block: 5px;
}
.capability-card li::before { content: "—"; color: var(--accent); }

.section-work { background: var(--bg-elevated); }
.work-list { border-top: 1px solid var(--line); }
.work-row {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) minmax(180px, 290px);
  gap: 32px;
  padding-block: 42px;
  border-bottom: 1px solid var(--line);
}
.work-status { color: var(--success); padding-top: 6px; }
.work-row h3 { font-size: clamp(24px, 2.5vw, 38px); }
.work-row p { color: var(--text-muted); max-width: 700px; }
.tags { color: var(--text-dim); font-size: 11px; line-height: 1.7; text-transform: uppercase; letter-spacing: .08em; padding-top: 6px; }

.innovation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.innovation-card {
  min-height: 330px;
  padding: 28px;
  background: var(--bg);
}
.logic { color: var(--accent); margin-bottom: 120px; }
.innovation-card h3 { font-size: 25px; }
.innovation-card p:last-child { color: var(--text-muted); }

.process-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.process-list li {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 32px;
  padding-block: 38px;
  border-bottom: 1px solid var(--line);
}
.process-list > li > span {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: .12em;
}
.process-list h3 { margin-bottom: 8px; }
.process-list p { max-width: 700px; margin-bottom: 0; color: var(--text-muted); }

.section-fit { background: rgba(255,255,255,.012); }
.fit-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 38px;
}
.fit-list span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 13px;
  color: var(--text-muted);
  font-size: 12px;
}

.contact-section {
  background:
    radial-gradient(circle at 80% 20%, rgba(157,181,255,.12), transparent 34rem),
    var(--bg-elevated);
}
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(250px, .75fr);
  gap: 64px;
  align-items: end;
}
.contact-grid h2 { max-width: 900px; }
.contact-grid > div:first-child > p:last-child { max-width: 660px; color: var(--text-muted); }
.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 26px;
}

.site-footer {
  padding-block: 44px;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr .6fr .7fr;
  gap: 36px;
  align-items: end;
}
.site-footer strong { color: var(--text); }
.site-footer p { margin: 6px 0 0; font-size: 13px; }
.site-footer a { text-decoration: none; }
.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  font-size: 12px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; padding-block: 60px; }
  .system-visual { justify-self: start; width: min(86vw, 500px); }
  .section-heading { grid-template-columns: 140px 1fr; }
  .section-heading > p:last-child { grid-column: 2; }
  .innovation-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .work-row { grid-template-columns: 130px 1fr; }
  .work-row .tags { grid-column: 2; }
}

@media (max-width: 760px) {
  :root { --section: 88px; }

  .header-inner { min-height: 68px; }

  .nav-toggle {
    width: 44px; height: 44px;
    display: grid;
    place-content: center;
    gap: 6px;
    border: 1px solid var(--line);
    border-radius: 50%;
    background: rgba(10,11,13,.7);
    color: var(--text);
  }
  .nav-toggle span:not(.sr-only) {
    display: block;
    width: 16px; height: 1px;
    background: currentColor;
    transition: transform .2s ease;
  }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(2) { transform: translateY(3.5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-of-type(3) { transform: translateY(-3.5px) rotate(-45deg); }

  .site-nav {
    position: fixed;
    inset: 68px 0 auto;
    display: grid;
    gap: 0;
    padding: 12px var(--gutter) 22px;
    background: rgba(10,11,13,.97);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .25s ease;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .site-nav > a:not(.button) { padding-block: 14px; border-bottom: 1px solid var(--line); }

  .hero { padding-top: 82px; min-height: auto; }
  .hero-grid { min-height: auto; gap: 54px; padding-block: 52px 70px; }
  h1 { font-size: clamp(49px, 14vw, 72px); }
  .hero-lead { font-size: 18px; }
  .hero-meta { display: grid; gap: 6px; margin-top: 36px; }
  .hero-meta span + span::before { display: none; }

  .system-visual {
    width: min(100%, 430px);
    margin-inline: auto;
  }
  .system-node {
    width: 96px;
    min-height: 62px;
    padding: 9px 10px;
  }
  .system-node strong { font-size: 11px; }
  .system-node span, .system-node small { font-size: 8px; }
  .node-search { right: -1%; }
  .node-systems { left: -1%; }

  .proof-strip { padding-block: 24px; gap: 12px 18px; }

  .split-intro,
  .section-heading,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .section-heading > p:last-child { grid-column: auto; }
  .section-index { padding-top: 0; }
  .section-heading { margin-bottom: 44px; }

  .capability-grid { grid-template-columns: 1fr; }
  .capability-card { min-height: 0; }
  .card-top { margin-bottom: 66px; }

  .work-row {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-block: 34px;
  }
  .work-row .tags { grid-column: auto; }

  .innovation-grid { grid-template-columns: 1fr; }
  .innovation-card { min-height: 260px; }
  .logic { margin-bottom: 90px; }

  .process-list li {
    grid-template-columns: 42px 1fr;
    gap: 16px;
  }

  .contact-actions { margin-top: 22px; }
  .button-large { width: 100%; }

  .footer-grid { grid-template-columns: 1fr; align-items: start; }
  .footer-meta { align-items: flex-start; }
}

@media (max-width: 430px) {
  h1 { font-size: clamp(46px, 13.5vw, 60px); letter-spacing: -.058em; }
  h2 { font-size: clamp(36px, 11vw, 48px); }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero-actions .button { width: 100%; }
  .system-visual { width: 100%; }
  .system-core strong { font-size: 7px; }
  .system-node { width: 86px; }
  .node-web { top: 3%; }
  .node-convert { bottom: 3%; }
  .proof-strip strong { width: calc(100% - 32px); }
}

@media (max-width: 360px) {
  .brand-name { font-size: 13px; }
  h1 { font-size: 45px; }
  .system-node { width: 80px; padding-inline: 8px; }
  .system-node strong { font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}