:root { --ink: #0c2b40; --navy: #071c2e; --teal: #3bb5a4; --teal-bright: #5ad4c3; --paper: #fbfaf6; --muted: #65798a; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Arial, Helvetica, sans-serif; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.section { padding: 112px 0; }
.section-inner { width: min(1180px, calc(100% - 64px)); margin: 0 auto; }
.section-label { display: inline-block; margin-bottom: 20px; color: #168f80; font-size: 11px; font-weight: 900; letter-spacing: .16em; text-transform: uppercase; }
h2 { margin: 0; max-width: 860px; font-size: clamp(38px, 4.1vw, 62px); line-height: 1.04; letter-spacing: -.045em; }
h2 span { color: var(--teal); }
.lead { color: #526674; font-size: 18px; line-height: 1.7; }
.site-header { position: absolute; inset: 0 0 auto; z-index: 10; height: 92px; display: flex; align-items: center; justify-content: space-between; width: min(1240px, calc(100% - 64px)); margin: 0 auto; }
.brand img { display: block; width: 174px; height: auto; }
nav { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 700; }
.nav-cta, .button-primary { background: var(--teal); color: var(--navy); border-radius: 999px; }
.nav-cta { padding: 13px 21px; }
.hero { min-height: 760px; display: grid; grid-template-columns: 52% 48%; overflow: hidden; background: var(--paper); position: relative; }
.hero-copy { display: flex; flex-direction: column; justify-content: center; max-width: 700px; padding: 150px 48px 90px max(32px, calc((100vw - 1240px) / 2)); }
.eyebrow { color: #168f80; font-size: 12px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
h1 { margin: 24px 0 25px; max-width: 650px; font-size: clamp(48px, 5.1vw, 78px); line-height: .98; letter-spacing: -.055em; }
h1 em { display: block; color: var(--teal); font-style: normal; }
.hero-copy > p { max-width: 580px; margin: 0; color: #435969; font-size: 19px; line-height: 1.65; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 36px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 54px; padding: 0 26px; font-size: 14px; font-weight: 800; }
.button-primary { box-shadow: 0 14px 35px rgba(59,181,164,.26); }
.text-link { font-size: 14px; font-weight: 800; }
.text-link span { color: var(--teal); margin-left: 7px; }
.hero-copy .trust-line { display: flex; align-items: center; gap: 9px; margin-top: 34px; font-size: 13px; color: var(--muted); }
.trust-line span { color: var(--teal); font-weight: 900; }
.hero-visual { position: relative; min-height: 760px; background: var(--navy); }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,28,46,.1), transparent 40%), radial-gradient(circle at 78% 20%, rgba(59,181,164,.18), transparent 32%); }
.hero-visual > img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.signal-card { position: absolute; z-index: 2; left: 44px; bottom: 62px; width: min(390px, calc(100% - 88px)); display: flex; align-items: center; gap: 13px; padding: 16px 18px; color: white; background: rgba(10,38,57,.82); border: 1px solid rgba(90,212,195,.25); border-radius: 16px; backdrop-filter: blur(14px); box-shadow: 0 22px 50px rgba(0,0,0,.24); }
.signal-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--teal-bright); box-shadow: 0 0 0 6px rgba(90,212,195,.12); }
.signal-card div { display: grid; gap: 3px; }
.signal-card strong { font-size: 13px; }
.signal-card small { color: #9eb2c0; font-size: 11px; }
.signal-bars { margin-left: auto; display: flex; align-items: center; gap: 3px; height: 24px; }
.signal-bars i { display: block; width: 3px; border-radius: 4px; background: var(--teal-bright); }
.signal-bars i:nth-child(1), .signal-bars i:nth-child(5) { height: 7px; }
.signal-bars i:nth-child(2), .signal-bars i:nth-child(4) { height: 15px; }
.signal-bars i:nth-child(3) { height: 23px; }

.tension { background: #fff; }
.tension-grid { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 0 70px; }
.tension-grid .section-label { padding-top: 10px; }
.tension-grid .lead { max-width: 730px; margin: 32px 0 0; }
blockquote { grid-column: 2; margin: 58px 0 0; padding: 25px 0 0 30px; border-left: 3px solid var(--teal); font-size: 23px; font-weight: 800; }

.process { background: var(--paper); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 60px; }
.section-heading > p { max-width: 330px; margin: 0 0 8px; color: var(--muted); font-size: 16px; line-height: 1.65; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 74px 0 0; padding: 0; list-style: none; border-top: 1px solid #cadbd9; }
.steps li { position: relative; padding: 39px 30px 18px 0; }
.steps li::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; border: 2px solid var(--teal); border-radius: 50%; background: var(--paper); }
.steps li:last-child::before { background: var(--teal); box-shadow: 0 0 0 7px rgba(59,181,164,.13); }
.steps span { color: var(--teal); font-size: 12px; font-weight: 900; }
.steps h3 { margin: 15px 0 11px; font-size: 20px; }
.steps p { max-width: 210px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.human-control { display: flex; align-items: center; gap: 18px; width: fit-content; margin: 48px auto 0; padding: 13px 23px 13px 13px; background: #fff; border: 1px solid #dfe9e7; border-radius: 999px; }
.human-control > span { display: grid; place-items: center; width: 45px; height: 45px; border-radius: 50%; background: var(--ink); color: white; font-size: 12px; font-weight: 900; }
.human-control p { margin: 0; color: var(--muted); font-size: 13px; }
.human-control strong { color: var(--ink); }

.signal-section { padding: 0; background: #fff; }
.signal-grid { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
.signal-art { min-height: 650px; overflow: hidden; background: #f3eee7; }
.signal-art img { width: 100%; height: 100%; object-fit: cover; }
.signal-copy { display: flex; flex-direction: column; justify-content: center; padding: 90px max(32px, calc((100vw - 1180px) / 2)) 90px 70px; }
.signal-copy .lead { max-width: 580px; margin: 30px 0 42px; }
.signal-flow { display: flex; align-items: center; gap: 12px; font-size: 11px; font-weight: 800; text-transform: uppercase; }
.signal-flow span, .signal-flow strong { white-space: nowrap; }
.signal-flow i { width: 28px; height: 1px; background: #acc7c3; }
.signal-flow strong { color: #168f80; }

.specialty { color: white; background: var(--navy); }
.specialty-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.specialty h2 { max-width: 560px; }
.specialty .lead { max-width: 560px; color: #9db0bd; }
.clinical-terms { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 0; padding: 0; list-style: none; }
.clinical-terms li { padding: 19px 20px; border: 1px solid rgba(90,212,195,.18); border-radius: 12px; background: rgba(59,181,164,.06); color: #dce9e7; font-size: 14px; }
.clinical-terms li:nth-child(2) { color: var(--navy); background: var(--teal-bright); border-color: var(--teal-bright); font-weight: 800; }

.trust { background: #fff; text-align: center; }
.trust h2 { max-width: 900px; margin: 0 auto; }
.trust-path { display: grid; grid-template-columns: 1fr 100px 1fr 100px 1fr; align-items: center; max-width: 870px; margin: 72px auto 0; }
.trust-path > div { display: flex; flex-direction: column; align-items: center; }
.trust-path > i { height: 1px; background: #c9d9d7; }
.path-kicker { margin-bottom: 15px; color: #168f80; font-size: 10px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.trust-path b { display: grid; place-items: center; width: 72px; height: 72px; border: 1px solid #cadbd9; border-radius: 50%; font-size: 16px; }
.trust-path b.md { background: var(--teal); border-color: var(--teal); }
.trust-path h3 { margin: 17px 0 0; font-size: 13px; }
.trust-notes { display: flex; justify-content: center; gap: 42px; margin-top: 62px; color: var(--muted); font-size: 13px; }
.trust-notes p { display: flex; align-items: center; gap: 9px; margin: 0; }
.trust-notes span { width: 7px; height: 7px; border-radius: 50%; background: #ef7968; }

.benefits { min-height: 660px; display: grid; grid-template-columns: 1fr 1fr; background: var(--navy); color: white; }
.benefits-image { min-height: 660px; overflow: hidden; }
.benefits-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.benefits-copy { display: flex; flex-direction: column; justify-content: center; padding: 90px max(32px, calc((100vw - 1180px) / 2)) 90px 74px; }
.benefits-copy h2 { max-width: 620px; }
.benefits-copy ul { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 34px; margin: 43px 0 0; padding: 0; list-style: none; }
.benefits-copy li { position: relative; padding-left: 18px; color: #d3e0e5; font-size: 14px; }
.benefits-copy li::before { content: ""; position: absolute; left: 0; top: 5px; width: 7px; height: 7px; border-radius: 50%; background: var(--teal); }
.benefits-copy li:last-child::before { background: #ef7968; }

.why { background: var(--paper); }
.why h2 { max-width: 940px; }
.why-list { margin-top: 65px; border-top: 1px solid #cbd8d5; }
.why-list article { display: grid; grid-template-columns: 80px 280px 1fr; gap: 25px; align-items: center; padding: 26px 0; border-bottom: 1px solid #cbd8d5; }
.why-list span { color: var(--teal); font-size: 12px; font-weight: 900; }
.why-list h3 { margin: 0; font-size: 18px; }
.why-list p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }

.pilot { position: relative; min-height: 600px; display: grid; place-items: center; overflow: hidden; background: var(--navy); color: white; text-align: center; }
.pilot-content { position: relative; z-index: 2; max-width: 760px; padding: 30px; }
.pilot h2 { margin: 0 auto; }
.pilot p { max-width: 630px; margin: 28px auto 34px; color: #aabac4; font-size: 18px; line-height: 1.65; }
.pilot .button { min-width: 230px; }
.pilot small { display: block; margin-top: 19px; color: #7f96a5; }
.pilot-orbit { position: absolute; inset: 0; display: grid; place-items: center; opacity: .75; }
.pilot-orbit span { position: absolute; width: min(74vw, 970px); aspect-ratio: 1; border: 1px solid rgba(90,212,195,.11); border-radius: 50%; }
.pilot-orbit span:nth-child(2) { width: min(56vw, 730px); }
.pilot-orbit span:nth-child(3) { width: min(38vw, 500px); border-color: rgba(90,212,195,.2); }
footer { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; padding: 34px max(32px, calc((100vw - 1180px) / 2)); background: #fff; color: var(--muted); font-size: 12px; }
footer img { width: 136px; }
footer p { margin: 0; }
footer span { justify-self: end; }

@media (hover: hover) {
  .button-primary, .nav-cta { transition: transform .2s ease, background .2s ease; }
  .button-primary:hover, .nav-cta:hover { transform: translateY(-2px); background: var(--teal-bright); }
  nav > a:not(.nav-cta):hover { color: #168f80; }
}
@media (max-width: 820px) {
  .site-header { width: calc(100% - 36px); height: 74px; }
  .brand img { width: 145px; }
  nav a:not(.nav-cta) { display: none; }
  .nav-cta { padding: 11px 15px; font-size: 12px; }
  .hero { min-height: auto; grid-template-columns: 1fr; }
  .hero-copy { padding: 126px 20px 64px; }
  h1 { font-size: clamp(48px, 14vw, 66px); }
  .hero-copy > p { font-size: 17px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero-visual { min-height: 470px; }
  .signal-card { left: 20px; bottom: 24px; width: calc(100% - 40px); }
  .section { padding: 78px 0; }
  .section-inner { width: calc(100% - 40px); }
  h2 { font-size: 40px; }
  .tension-grid, .section-heading, .specialty-grid { display: block; }
  .tension-grid .lead { margin-top: 25px; }
  blockquote { grid-column: auto; margin-top: 40px; font-size: 19px; }
  .section-heading > p { margin-top: 24px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li { padding-right: 18px; }
  .human-control { width: 100%; align-items: flex-start; border-radius: 18px; }
  .human-control p { flex: 1; line-height: 1.55; }
  .signal-grid, .benefits { grid-template-columns: 1fr; }
  .signal-art, .benefits-image { min-height: 390px; }
  .signal-copy, .benefits-copy { padding: 75px 20px; }
  .signal-flow { flex-wrap: wrap; }
  .specialty-grid { gap: 0; }
  .clinical-terms { margin-top: 45px; gap: 10px; }
  .clinical-terms li { padding: 15px 13px; font-size: 12px; }
  .trust h2 { font-size: 36px; }
  .trust-path { grid-template-columns: 1fr; gap: 18px; margin-top: 52px; }
  .trust-path > i { width: 1px; height: 26px; margin: 0 auto; }
  .trust-notes { align-items: flex-start; flex-direction: column; gap: 15px; text-align: left; }
  .benefits { min-height: auto; }
  .benefits-copy ul { grid-template-columns: 1fr; }
  .why-list article { grid-template-columns: 42px 1fr; gap: 12px; }
  .why-list article p { grid-column: 2; }
  .pilot { min-height: 580px; }
  .pilot-orbit span { width: 160vw; }
  .pilot-orbit span:nth-child(2) { width: 120vw; }
  .pilot-orbit span:nth-child(3) { width: 80vw; }
  footer { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  footer span { justify-self: center; }
}

@media (max-width: 430px) {
  .hero-copy { padding-top: 116px; }
  h1 { font-size: 48px; }
  .steps { grid-template-columns: 1fr; border-top: 0; }
  .steps li { padding: 22px 0 22px 38px; border-left: 1px solid #cadbd9; }
  .steps li::before { top: 27px; left: -5px; }
  .clinical-terms { grid-template-columns: 1fr; }
  .benefits-image { min-height: 330px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }