:root {
  --ink: #0b1628;
  --ink-soft: #25354d;
  --navy: #08111f;
  --navy-2: #0d1b31;
  --blue: #63d8ff;
  --blue-strong: #28b9eb;
  --mint: #91f2d0;
  --paper: #f5f7fb;
  --white: #ffffff;
  --line: #d8e0eb;
  --muted: #637086;
  --max: 1180px;
  --radius: 22px;
  --shadow: 0 18px 45px rgba(8, 17, 31, .10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
a:focus-visible,
button:focus-visible {
  outline: 4px solid #ffd166;
  outline-offset: 4px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 1000;
  background: #ffd166;
  color: #111;
  padding: .75rem 1rem;
  font-weight: 800;
  border-radius: 0 0 8px 8px;
}
.skip-link:focus { top: 0; }

.shell { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 17, 31, .96);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.11);
  backdrop-filter: blur(14px);
}
.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: 1.1rem;
  white-space: nowrap;
}
.brand-mark {
  width: 28px;
  height: 28px;
  position: relative;
  display: inline-block;
}
.brand-mark span {
  position: absolute;
  width: 8px;
  height: 8px;
  border: 2px solid var(--blue);
  border-radius: 50%;
}
.brand-mark span:nth-child(1) { left: 0; top: 1px; }
.brand-mark span:nth-child(2) { right: 0; top: 1px; }
.brand-mark span:nth-child(3) { left: 0; bottom: 1px; }
.brand-mark span:nth-child(4) { right: 0; bottom: 1px; }
.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  background: rgba(99,216,255,.8);
  height: 1px;
  width: 24px;
  top: 13px;
  left: 2px;
}
.brand-mark::before { transform: rotate(45deg); }
.brand-mark::after { transform: rotate(-45deg); }

nav { margin-left: auto; }
.nav-list {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: .94rem;
}
.nav-list a { text-decoration: none; color: #dbe8f7; }
.nav-list a:hover { color: var(--white); text-decoration: underline; text-underline-offset: .3em; }

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: .8rem 1.15rem;
  border-radius: 999px;
  background: var(--blue);
  color: #04101d;
  text-decoration: none;
  font-weight: 800;
  line-height: 1.1;
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease;
}
.button:hover { background: #91e7ff; transform: translateY(-1px); }
.button-small { min-height: 40px; padding: .68rem 1rem; font-size: .9rem; }
.button-light { background: var(--white); color: var(--ink); }
.button-light:hover { background: #eef6ff; }

.hero {
  color: var(--white);
  background:
    radial-gradient(circle at 85% 15%, rgba(40,185,235,.18), transparent 26rem),
    radial-gradient(circle at 8% 78%, rgba(145,242,208,.10), transparent 24rem),
    linear-gradient(135deg, var(--navy), #0b172b 60%, #101f38);
  overflow: hidden;
}
.hero-grid {
  min-height: 680px;
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 5rem;
  align-items: center;
  padding-block: 7rem;
}
.eyebrow {
  margin: 0 0 1rem;
  color: var(--mint);
  text-transform: uppercase;
  letter-spacing: .13em;
  font-size: .78rem;
  font-weight: 850;
}
.eyebrow.dark { color: #047e77; }
.hero h1 {
  margin: 0;
  max-width: 860px;
  font-size: clamp(3rem, 6.2vw, 5.8rem);
  line-height: .98;
  letter-spacing: -.055em;
  text-wrap: balance;
}
.hero-lede {
  margin: 1.75rem 0 0;
  max-width: 760px;
  color: #c9d6e7;
  font-size: clamp(1.12rem, 2vw, 1.35rem);
}
.hero-actions {
  margin-top: 2.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}
.text-link {
  color: var(--white);
  font-weight: 800;
  text-underline-offset: .3em;
}
.microcopy { margin: 1.25rem 0 0; color: #9fb0c7; font-size: .9rem; }

.hero-panel,
.tech-panel {
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(255,255,255,.055);
  border-radius: var(--radius);
  padding: 1.6rem;
  box-shadow: 0 24px 70px rgba(0,0,0,.22);
}
.panel-label {
  margin: 0 0 1.25rem;
  color: #9fb0c7;
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .13em;
  font-weight: 800;
}
.signal-flow { list-style: none; padding: 0; margin: 0; }
.signal-flow li {
  display: grid;
  grid-template-columns: 2.8rem 1fr;
  gap: .8rem;
  padding: 1rem 0;
  border-top: 1px solid rgba(255,255,255,.12);
}
.signal-flow li:first-child { border-top: 0; padding-top: 0; }
.step-number { color: var(--blue); font-size: .78rem; font-weight: 850; letter-spacing: .08em; }
.signal-flow strong { display: block; font-size: 1.05rem; }
.signal-flow small { display: block; margin-top: .15rem; color: #aebbd0; font-size: .93rem; }

.section { padding-block: 7rem; }
.section-light { background: var(--paper); }
.section-heading { max-width: 760px; margin-bottom: 3rem; }
.section h2,
.cta-section h2 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  line-height: 1.06;
  letter-spacing: -.045em;
  text-wrap: balance;
}
.section-heading > p:last-child,
.section-lede {
  margin-top: 1.25rem;
  color: var(--ink-soft);
  font-size: 1.15rem;
}

.cards { display: grid; gap: 1.35rem; }
.three-up { grid-template-columns: repeat(3, 1fr); }
.card,
.founder-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}
.featured-card { border-color: #87cfe6; box-shadow: 0 18px 50px rgba(40,185,235,.12); }
.card-kicker {
  color: #057a79;
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.card h3,
.founder-card h3 { margin: .25rem 0 .8rem; font-size: 1.55rem; letter-spacing: -.025em; }
.card p { color: var(--ink-soft); }
.card ul,
.credential-list { padding-left: 1.2rem; }
.card li,
.credential-list li { margin: .55rem 0; }

.split-layout,
.about-grid,
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}
.principles { display: grid; gap: .8rem; }
.principle {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
}
.principle:first-child { border-top: 0; padding-top: 0; }
.principle > span {
  width: 2.35rem;
  height: 2.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #e5f9fb;
  border-radius: 50%;
  color: #075f63;
  font-weight: 900;
}
.principle h3 { margin: 0 0 .3rem; }
.principle p { margin: 0; color: var(--ink-soft); }

.tech-section {
  color: var(--white);
  background: linear-gradient(135deg, #0b1f2c, #10223c 55%, #0c2931);
}
.tech-section .section-lede,
.tech-section p { color: #c9d6e7; }
.status-badge {
  display: inline-block;
  margin: 0 0 1.5rem;
  padding: .45rem .75rem;
  border: 1px solid rgba(145,242,208,.42);
  border-radius: 999px;
  color: var(--mint) !important;
  background: rgba(145,242,208,.07);
  font-weight: 800;
  font-size: .82rem;
}
.tech-list { list-style: none; padding: 0; margin: 0; }
.tech-list li { padding: .9rem 0; border-top: 1px solid rgba(255,255,255,.12); }
.tech-list li:first-child { border-top: 0; }
.tech-list strong { display: block; }
.tech-list span { display: block; color: #aebbd0; font-size: .93rem; }

.about-grid p { color: var(--ink-soft); }
.founder-card { position: relative; overflow: hidden; }
.founder-card::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 180px;
  height: 180px;
  border: 28px solid #e7f8fb;
  border-radius: 50%;
  pointer-events: none;
}
.credential-list { position: relative; z-index: 1; }

.cta-section {
  color: var(--white);
  background: #047e77;
  padding-block: 5.5rem;
}
.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}
.cta-section .eyebrow { color: #d1fff0; }
.cta-section p:last-child { max-width: 800px; color: #e5fff6; font-size: 1.08rem; }

.site-footer {
  background: var(--navy);
  color: #b8c7da;
  padding-block: 2.8rem;
  font-size: .92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem 3rem;
  align-items: start;
}
.footer-grid p { margin: .25rem 0; }
.footer-brand { color: var(--white); font-weight: 850; font-size: 1.08rem; }
.site-footer a { color: #dcf6ff; text-underline-offset: .25em; }
.copyright { grid-column: 1 / -1; padding-top: 1.3rem; margin-top: .8rem !important; border-top: 1px solid rgba(255,255,255,.11); }

@media (max-width: 900px) {
  .header-inner { flex-wrap: wrap; padding-block: .8rem; gap: .7rem 1.2rem; }
  nav { order: 3; width: 100%; overflow-x: auto; margin-left: 0; }
  .nav-list { padding-bottom: .4rem; }
  .header-inner > .button { margin-left: auto; }
  .hero-grid,
  .split-layout,
  .about-grid,
  .tech-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-grid { min-height: unset; padding-block: 5rem; }
  .three-up { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .shell { width: min(calc(100% - 1.5rem), var(--max)); }
  .site-header { position: static; }
  .brand-name { font-size: 1rem; }
  .header-inner > .button { width: 100%; margin-left: 0; }
  .nav-list { gap: 1rem; font-size: .9rem; }
  .hero h1 { font-size: clamp(2.65rem, 15vw, 4rem); }
  .hero-actions { align-items: stretch; }
  .hero-actions .button { width: 100%; }
  .section { padding-block: 5rem; }
  .card, .founder-card { padding: 1.4rem; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (forced-colors: active) {
  .brand-mark span,
  .button,
  .status-badge { border: 2px solid ButtonText; }
  .button { background: ButtonFace; color: ButtonText; }
}