:root {
  --ink: #07111f;
  --ink-soft: #0d1b2c;
  --paper: #f4f5f2;
  --white: #ffffff;
  --muted: #66717f;
  --muted-dark: #a8b3c2;
  --line: #d9ddd9;
  --line-dark: rgba(255,255,255,.13);
  --teal: #37d6bc;
  --teal-dark: #0b947f;
  --blue: #67a9ff;
  --shell: 1180px;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; }
button, input, textarea, select { font: inherit; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -80px; background: var(--white); color: var(--ink); padding: 12px 16px; z-index: 100; }
.skip-link:focus { top: 16px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease;
}
.site-header.scrolled { background: rgba(7,17,31,.9); backdrop-filter: blur(16px); border-color: var(--line-dark); }
.nav-wrap { min-height: 76px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 142px; height: auto; }
.site-nav { display: flex; align-items: center; gap: 32px; font-size: 14px; }
.site-nav a { text-decoration: none; color: #d9e1eb; transition: color .2s ease; }
.site-nav a:hover { color: var(--white); }
.site-nav .nav-contact { border: 1px solid rgba(255,255,255,.35); border-radius: 999px; padding: 9px 17px; }
.menu-toggle { display: none; color: var(--white); background: transparent; border: 1px solid rgba(255,255,255,.3); border-radius: 999px; padding: 8px 14px; }

.section-dark { color: var(--white); background: var(--ink); }
.section-light { background: var(--paper); }
.section-white { background: var(--white); }
.hero { min-height: 780px; padding: 168px 0 104px; position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to bottom, black, transparent 88%); }
.ambient { position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.ambient-one { width: 580px; height: 580px; right: -180px; top: -240px; background: radial-gradient(circle, rgba(55,214,188,.18), transparent 66%); }
.ambient-two { width: 440px; height: 440px; left: -260px; bottom: -220px; background: radial-gradient(circle, rgba(103,169,255,.12), transparent 68%); }
.hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 70px; }
.hero-copy, .assurance-map { min-width: 0; }
.eyebrow { margin: 0 0 22px; display: flex; align-items: center; gap: 10px; color: var(--teal); text-transform: uppercase; letter-spacing: .15em; font-size: 12px; font-weight: 700; }
.eyebrow span { width: 28px; height: 1px; background: currentColor; }
.eyebrow.dark { color: var(--teal-dark); }
h1, h2, h3 { font-family: "Manrope", sans-serif; margin: 0; letter-spacing: -.045em; line-height: 1.08; }
h1 { font-size: clamp(52px, 6.2vw, 78px); max-width: 770px; }
h1, h2, .hero-lede, .prose p, .application-copy p, .contact-copy p { overflow-wrap: anywhere; }
h2 { font-size: clamp(38px, 4.4vw, 58px); }
h3 { font-size: 27px; }
.hero-lede { margin: 28px 0 0; max-width: 660px; color: #b8c3d1; font-size: 19px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.button { border: 0; border-radius: 999px; padding: 13px 21px; text-decoration: none; font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #051411; background: var(--teal); }
.button-primary:hover { background: #6be3cf; }
.button-secondary { color: var(--white); border: 1px solid rgba(255,255,255,.3); background: transparent; }
.button-secondary:hover { border-color: rgba(255,255,255,.65); }
.stage-note { display: flex; align-items: center; gap: 9px; margin: 30px 0 0; font-size: 13px; color: #8493a6; }
.stage-note span { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 5px rgba(55,214,188,.11); }

.assurance-map { padding: 24px; border: 1px solid rgba(255,255,255,.13); border-radius: 22px; background: linear-gradient(155deg, rgba(255,255,255,.075), rgba(255,255,255,.025)); box-shadow: 0 34px 80px rgba(0,0,0,.28); backdrop-filter: blur(14px); }
.map-topline { display: flex; align-items: center; justify-content: space-between; color: #718096; font-size: 10px; letter-spacing: .15em; margin-bottom: 19px; }
.map-status { display: flex; align-items: center; gap: 7px; color: #9eacbc; }
.map-status i { width: 6px; height: 6px; background: var(--teal); border-radius: 50%; box-shadow: 0 0 12px var(--teal); }
.proposal-card, .record-card { border: 1px solid rgba(255,255,255,.12); background: rgba(4,12,23,.72); border-radius: 13px; padding: 17px 19px; }
.proposal-card { display: flex; flex-direction: column; gap: 3px; }
.node-label { color: #7e8ea2; letter-spacing: .13em; font-size: 9px; }
.proposal-card strong, .record-card strong { font-family: "Manrope", sans-serif; font-size: 16px; }
.proposal-card > span:last-child { color: #8493a6; font-size: 12px; }
.flow-line { height: 28px; display: grid; place-items: center; }
.flow-line span { width: 1px; height: 100%; background: linear-gradient(var(--teal), rgba(55,214,188,.15)); position: relative; }
.flow-line span::after { content: ""; position: absolute; width: 5px; height: 5px; background: var(--teal); border-radius: 50%; bottom: 3px; left: -2px; }
.checks { border: 1px solid rgba(55,214,188,.22); border-radius: 13px; background: rgba(55,214,188,.035); overflow: hidden; }
.checks div { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 11px; padding: 11px 15px; border-bottom: 1px solid rgba(255,255,255,.075); }
.checks div:last-child { border-bottom: 0; }
.checks span { color: #64758a; font: 600 10px/1 "Manrope", sans-serif; }
.checks strong { font-size: 13px; font-weight: 500; }
.checks i { width: 7px; height: 7px; background: var(--teal); border-radius: 50%; box-shadow: 0 0 0 4px rgba(55,214,188,.08); }
.record-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 13px; }
.record-card > div:nth-child(2) { display: flex; flex-direction: column; }
.record-icon { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid rgba(103,169,255,.35); border-radius: 10px; background: rgba(103,169,255,.08); }
.record-icon svg { width: 19px; fill: none; stroke: var(--blue); stroke-width: 1.5; }
.record-state { color: var(--teal); font-size: 9px; letter-spacing: .12em; }

.signal-strip { background: #0b1828; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); color: #9caaba; }
.signal-grid { min-height: 76px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; }
.signal-grid span { text-align: center; border-right: 1px solid var(--line-dark); font-size: 13px; letter-spacing: .04em; }
.signal-grid span:last-child { border-right: 0; }

.problem, .stage { padding: 132px 0; }
.split-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 110px; align-items: start; }
.split-grid > *, .safety-grid > *, .application-grid > *, .contact-grid > *, .card-grid > * { min-width: 0; }
.section-heading h2 { max-width: 520px; }
.prose p { color: var(--muted); max-width: 650px; }
.prose p:first-child { margin-top: 0; }
.prose .large, .safety-copy .large { font-size: 23px; line-height: 1.55; color: var(--ink); }
.prose .gap-callout { margin-top: 30px; padding: 20px 22px; color: var(--ink); border-left: 3px solid var(--teal-dark); background: rgba(55,214,188,.08); font-weight: 500; }

.approach { padding: 132px 0; }
.section-intro { max-width: 760px; }
.section-intro > p:last-child { color: var(--muted); font-size: 19px; max-width: 660px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 66px; }
.feature-card { position: relative; min-height: 360px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: #fafbf9; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.feature-card:hover { transform: translateY(-5px); border-color: rgba(11,148,127,.4); box-shadow: 0 24px 55px rgba(7,17,31,.08); }
.card-number { position: absolute; right: 27px; top: 25px; color: #9da5ad; font: 600 11px/1 "Manrope", sans-serif; }
.feature-card h3 { margin-top: 38px; }
.feature-card p { color: var(--muted); font-size: 15px; }
.feature-icon { width: 54px; height: 54px; position: relative; border: 1px solid rgba(11,148,127,.22); background: rgba(55,214,188,.08); border-radius: 14px; }
.feature-icon i { position: absolute; width: 8px; height: 8px; border: 2px solid var(--teal-dark); border-radius: 50%; }
.feature-icon i:nth-child(1) { left: 11px; top: 23px; }
.feature-icon i:nth-child(2) { left: 25px; top: 11px; }
.feature-icon i:nth-child(3) { right: 8px; bottom: 9px; }
.feature-icon::after { content: ""; position: absolute; width: 28px; height: 1px; background: var(--teal-dark); transform: rotate(-20deg); left: 13px; top: 27px; opacity: .6; }
.feature-icon.record i { border-radius: 2px; width: 26px; height: 3px; border: 0; background: var(--teal-dark); left: 13px; }
.feature-icon.record i:nth-child(1) { top: 15px; }
.feature-icon.record i:nth-child(2) { top: 25px; }
.feature-icon.record i:nth-child(3) { top: 35px; }
.feature-icon.record::after { display: none; }
.feature-icon.replay { border-radius: 50%; }
.feature-icon.replay i:nth-child(1) { inset: 12px; width: auto; height: auto; border-width: 1px; }
.feature-icon.replay i:nth-child(2) { width: 8px; height: 8px; left: 23px; top: 23px; background: var(--teal-dark); }
.feature-icon.replay i:nth-child(3) { display: none; }
.feature-icon.replay::after { width: 16px; left: 19px; top: 26px; transform: rotate(0); }

.process-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin-top: 62px; }
.process-card { min-width: 0; position: relative; padding: 30px 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fafbf9; }
.process-card .card-number { position: static; display: block; color: var(--teal-dark); margin-bottom: 38px; }
.process-card h3 { font-size: 22px; }
.process-card p { color: var(--muted); font-size: 14px; line-height: 1.55; }
.patent-line { margin: 34px 0 0; font-size: 14px; color: var(--muted); }
.dark-button { margin-top: 20px; }
.usecase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 52px; }
.usecase-card { min-width: 0; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.usecase-card h3 { font-size: 22px; }
.usecase-card p { color: var(--muted); font-size: 15px; }
.testbed-card { margin-top: 24px; padding: 34px 38px; border: 1px solid var(--line-dark); border-radius: var(--radius); background: var(--ink-soft); color: var(--white); }
.testbed-label { margin: 0 0 10px; color: var(--teal); font: 600 12px/1.4 "Manrope", sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.testbed-card h3 { margin: 0 0 10px; font-size: clamp(24px, 3vw, 32px); }
.testbed-card > p:last-child { max-width: 850px; margin: 0; color: var(--muted-dark); font-size: 16px; }
.vendor-section, .evidence-section, .vision-section, .team-section { padding: 132px 0; }
.vendor-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 110px; }
.text-link { display: inline-block; margin-top: 14px; color: var(--teal-dark); font-weight: 600; text-underline-offset: 5px; }
.text-link span { margin-left: 6px; }
.evidence-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 54px; }
.evidence-card { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.evidence-label { display: block; min-height: 50px; color: var(--muted); font-size: 13px; }
.evidence-card strong { display: block; color: var(--ink); font: 700 clamp(48px, 5vw, 72px)/1.1 "Manrope", sans-serif; letter-spacing: -.06em; margin-top: 23px; }
.evidence-card p { margin: 4px 0 22px; font-size: 18px; }
.evidence-secondary { color: var(--teal-dark); font-weight: 600; font-size: 14px; }
.existing-line { margin: 30px 0 0; color: var(--muted); font-size: 15px; }
.vision-copy p { color: #aab6c5; }
.vision-copy .large { color: #e3eaf2; font-size: 23px; line-height: 1.55; margin-top: 0; }
.contact-address { margin-top: 34px; font-size: 16px !important; }
.contact-address a { color: var(--teal); }

.safety { padding: 132px 0; position: relative; overflow: hidden; }
.safety::before { content: ""; position: absolute; width: 600px; height: 600px; left: -320px; top: -250px; border-radius: 50%; background: radial-gradient(circle, rgba(55,214,188,.13), transparent 67%); }
.safety-grid { position: relative; display: grid; grid-template-columns: .95fr 1.05fr; gap: 110px; }
.safety-copy .large { margin-top: 0; color: #dce4ec; }
.safety-points { margin-top: 44px; border-top: 1px solid var(--line-dark); }
.safety-points div { display: grid; grid-template-columns: 44px 1fr; gap: 17px; padding: 22px 0; border-bottom: 1px solid var(--line-dark); }
.safety-points span { color: var(--teal); font: 600 11px/1.8 "Manrope", sans-serif; }
.safety-points p { margin: 0; color: #aab6c5; font-size: 15px; }

.application { padding: 132px 0; }
.application-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 100px; align-items: center; }
.application-copy > p { color: var(--muted); font-size: 19px; max-width: 700px; }
.application-areas { display: grid; gap: 0; margin-top: 34px; border-top: 1px solid #d9ddda; }
.application-areas div { display: grid; grid-template-columns: minmax(170px, .72fr) 1.28fr; gap: 22px; padding: 18px 0; border-bottom: 1px solid #d9ddda; }
.application-areas strong { color: var(--ink); font: 600 14px/1.45 "Manrope", sans-serif; }
.application-areas span { color: var(--muted); font-size: 14px; line-height: 1.55; }
.mode-panel { border: 1px solid #cfd5d3; border-radius: var(--radius); background: var(--white); box-shadow: 0 24px 60px rgba(7,17,31,.08); padding: 28px; }
.panel-label { margin: 0 0 15px; color: #8a949e; letter-spacing: .14em; font-size: 10px; }
.mode-row { display: flex; justify-content: space-between; gap: 20px; padding: 16px 0; border-bottom: 1px solid #e5e8e5; font-size: 14px; }
.mode-row span { color: var(--muted); }
.mode-row strong { font-weight: 600; text-align: right; }
.mode-footer { display: flex; align-items: center; gap: 10px; padding-top: 20px; color: var(--teal-dark); font-size: 12px; font-weight: 600; }
.mode-footer i { width: 7px; height: 7px; background: var(--teal); border-radius: 50%; box-shadow: 0 0 0 5px rgba(55,214,188,.14); }

.contact { padding: 132px 0; }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: start; }
.contact-copy p:last-child { color: #aab6c5; max-width: 540px; font-size: 18px; }
.contact-form { display: grid; gap: 18px; padding: 34px; border: 1px solid var(--line-dark); border-radius: var(--radius); background: rgba(255,255,255,.035); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form label { display: grid; gap: 7px; color: #aab6c5; font-size: 12px; }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; color: var(--white); background: #172334; border: 1px solid rgba(255,255,255,.16); border-radius: 9px; padding: 12px 13px; outline: none; transition: border-color .2s ease, background .2s ease; }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { border-color: var(--teal); background: #1a2a39; }
.contact-form textarea { resize: vertical; min-height: 116px; }
.contact-form .button { justify-self: start; margin-top: 4px; }
.form-note { margin: 0; color: #7d8c9d; font-size: 11px; line-height: 1.5; }

.site-footer { color: #8795a6; background: #040b14; border-top: 1px solid rgba(255,255,255,.08); }
.footer-wrap { min-height: 96px; display: flex; align-items: center; justify-content: space-between; }
.footer-brand img { width: 132px; }
.footer-meta { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; font-size: 12px; }
.footer-meta a { text-decoration: none; }
.footer-meta a:hover { color: var(--white); }

.legal-page { min-height: 100vh; padding: 150px 0 90px; background: var(--white); }
.legal-copy { max-width: 760px; }
.legal-copy h1 { font-size: clamp(44px, 6vw, 66px); }
.legal-copy h2 { margin-top: 42px; font-size: 26px; letter-spacing: -.025em; }
.legal-copy p, .legal-copy li { color: var(--muted); }
.legal-copy .updated { color: var(--teal-dark); font-size: 13px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 930px) {
  .hero { padding-top: 140px; }
  .hero-grid, .split-grid, .safety-grid, .application-grid, .contact-grid { grid-template-columns: 1fr; gap: 58px; }
  .hero-copy { max-width: 720px; }
  .assurance-map { max-width: 640px; }
  .card-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .usecase-grid { grid-template-columns: 1fr; }
  .vendor-grid { grid-template-columns: 1fr; gap: 58px; }
  .feature-card { min-height: 280px; }
  .signal-grid { grid-template-columns: repeat(2, 1fr); }
  .signal-grid span { padding: 15px 0; }
  .signal-grid span:nth-child(2) { border-right: 0; }
  .signal-grid span:nth-child(-n+2) { border-bottom: 1px solid var(--line-dark); }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .shell { width: min(calc(100% - 32px), var(--shell)); }
  .hero-copy, .hero-lede, h1 { width: 100%; max-width: 100%; min-width: 0; }
  .eyebrow { display: block; max-width: 100%; letter-spacing: .12em; overflow-wrap: anywhere; }
  .eyebrow span { display: none; }
  .menu-toggle { display: block; }
  .brand img { width: 128px; }
  .footer-brand img { width: 124px; }
  .site-nav { position: absolute; left: 16px; right: 16px; top: 68px; padding: 18px; display: none; flex-direction: column; align-items: stretch; gap: 10px; border: 1px solid var(--line-dark); border-radius: 14px; background: rgba(7,17,31,.98); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 7px 4px; }
  .site-nav .nav-contact { text-align: center; margin-top: 5px; }
  .hero { min-height: auto; padding: 130px 0 80px; }
  h1 { font-size: clamp(42px, 12vw, 52px); }
  h2 { font-size: 38px; }
  .hero-grid { gap: 50px; }
  .assurance-map { padding: 15px; }
  .assurance-map { width: 100%; max-width: 100%; overflow: hidden; }
  .map-topline { align-items: flex-start; flex-wrap: wrap; gap: 8px; }
  .record-state { display: none; }
  .problem, .stage, .approach, .safety, .application, .contact, .vendor-section, .evidence-section, .vision-section, .team-section { padding: 88px 0; }
  .process-grid, .evidence-grid { grid-template-columns: 1fr; }
  .process-card .card-number { margin-bottom: 18px; }
  .evidence-card { padding: 26px; }
  .testbed-card { padding: 26px; }
  .prose .large, .safety-copy .large { font-size: 20px; }
  .card-grid { margin-top: 40px; }
  .feature-card { padding: 27px; }
  .application-areas div { grid-template-columns: 1fr; gap: 7px; }
  .field-row { grid-template-columns: 1fr; }
  .contact-form { padding: 23px; }
  .footer-wrap { padding: 26px 0; flex-direction: column; align-items: flex-start; gap: 22px; }
  .footer-meta { flex-direction: column; gap: 8px; }
}

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