:root {
  --navy: #173f59;
  --navy-deep: #0f3045;
  --aqua: #68c9b8;
  --aqua-light: #bde7df;
  --ice: #edf4f6;
  --ink: #153343;
  --white: #fff;
  --orange: #ef7e22;
  --magenta: #a727a4;
  --lime: #c5d52d;
  --line: rgba(21, 51, 67, .16);
  --display: "Avenir Next", "Century Gothic", Avenir, sans-serif;
  --body: Inter, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #dfe8eb; font-family: var(--body); line-height: 1.55; }
.page-shell { position: relative; width: calc(100% - 48px); max-width: 1400px; margin: 0 auto; overflow: clip; background: var(--white); box-shadow: 0 24px 70px rgba(15, 48, 69, .14); }
img { display: block; width: 100%; }
a { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3, .brand-word, .metric strong { font-family: var(--display); }
h2 { font-size: clamp(2rem, 4.4vw, 4.6rem); line-height: 1.02; letter-spacing: -.045em; font-weight: 500; }
h3 { letter-spacing: -.025em; }

.skip-link { position: fixed; z-index: 100; top: 10px; left: 10px; transform: translateY(-150%); background: white; padding: 10px 14px; }
.skip-link:focus { transform: none; }
.site-header { height: 88px; display: flex; align-items: center; gap: 48px; padding: 0 clamp(22px, 5vw, 76px); position: absolute; z-index: 20; width: 100%; color: white; border-bottom: 1px solid rgba(255,255,255,.2); }
.brand { display: inline-flex; flex-direction: column; text-decoration: none; line-height: 1; min-width: 185px; }
.brand-word { font-size: 2rem; font-weight: 300; letter-spacing: .05em; }
.brand-word span { color: var(--aqua); position: relative; }
.brand-word span::after { content: ""; position: absolute; right: -.12em; top: -.18em; width: 2px; height: 1.2em; background: currentColor; }
.brand-sub { margin-top: 6px; font-size: .56rem; letter-spacing: .24em; text-transform: uppercase; color: var(--aqua-light); }
.nav { margin-left: auto; display: flex; gap: 28px; }
.nav a { font-size: .8rem; text-decoration: none; letter-spacing: .08em; text-transform: uppercase; }
.button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid transparent; text-decoration: none; text-transform: uppercase; letter-spacing: .075em; font-size: .77rem; font-weight: 700; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, a:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }
.button-small { min-height: 42px; padding: 0 18px; font-size: .68rem; }
.button-light { border-color: rgba(255,255,255,.6); }
.button-light:hover { background: white; color: var(--navy); }
.button-primary { background: var(--aqua); color: var(--navy-deep); }
.button-primary:hover { background: #83dece; }
.eyebrow { margin-bottom: 24px; color: var(--aqua); font-size: .72rem; font-weight: 800; letter-spacing: .2em; text-transform: uppercase; }
.eyebrow.dark { color: #3b8f82; }
.section-pad { padding: clamp(80px, 10vw, 150px) clamp(22px, 7vw, 110px); }

.hero { min-height: 780px; height: 100vh; display: grid; grid-template-columns: minmax(0, 1.75fr) minmax(390px, .8fr); color: white; background: var(--navy); }
.hero-copy { align-self: center; padding: 130px clamp(30px, 7vw, 120px) 70px; }
.hero h1 { max-width: 920px; margin-bottom: 28px; font-size: clamp(3.4rem, 7.4vw, 7.7rem); line-height: .88; font-weight: 300; letter-spacing: -.065em; }
.hero h1 span { color: var(--aqua); }
.hero-lead { max-width: 700px; margin-bottom: 34px; font-size: clamp(1.05rem, 1.6vw, 1.35rem); color: #d8e6ec; }
.hero-actions { display: flex; align-items: center; gap: 20px; }
.hero-actions span { font-size: .8rem; color: #b7ced9; }
.principles { display: flex; flex-wrap: wrap; gap: 12px 30px; margin-top: 66px; color: #c4d7df; font-size: .69rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.principles span:not(:last-child)::after { content: ""; display: inline-block; width: 2px; height: 1.1em; margin-left: 30px; vertical-align: middle; background: var(--aqua); }
.hero-visual { position: relative; overflow: hidden; min-height: 100%; background: #192a32; }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(15,48,69,.15), rgba(0,0,0,.1)); }
.hero-visual img { height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.12); }
.hero-bars { position: absolute; z-index: 2; inset: 0; display: flex; justify-content: space-evenly; pointer-events: none; }
.hero-bars i { width: 10%; height: 100%; background: var(--navy); }
.metric { z-index: 4; position: absolute; right: 7%; display: flex; flex-direction: column; width: 34%; }
.metric strong { font-size: clamp(2.7rem, 4vw, 5rem); line-height: .9; font-weight: 500; }
.metric span { margin-top: 8px; font-size: .82rem; line-height: 1.2; text-transform: uppercase; letter-spacing: .08em; }
.metric-a { top: 17%; color: var(--aqua); }
.metric-b { top: 45%; color: var(--orange); }
.metric-c { top: 73%; color: #cd58c7; }

.symptoms { background: var(--aqua); }
.section-heading { max-width: 880px; }
.symptoms h2, .methods h2, .decision h2 { color: var(--navy-deep); }
.quote-grid { margin-top: 60px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(15,48,69,.3); border-left: 1px solid rgba(15,48,69,.3); }
.quote-grid blockquote { min-height: 210px; margin: 0; padding: 30px 26px; border-right: 1px solid rgba(15,48,69,.3); border-bottom: 1px solid rgba(15,48,69,.3); font-family: var(--display); font-size: clamp(1.05rem, 1.4vw, 1.35rem); }
.quote-grid blockquote::before { content: "+"; display: block; margin-bottom: 35px; color: var(--navy); font-size: 2rem; line-height: 1; }

.definition { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(60px, 9vw, 150px); color: white; background: var(--navy-deep); }
.definition-intro > p:last-child { max-width: 660px; color: #bfd0d8; font-size: 1.12rem; }
.model-stack { border-top: 1px solid rgba(255,255,255,.2); }
.model-card { position: relative; padding: 34px 0 34px 74px; border-bottom: 1px solid rgba(255,255,255,.2); }
.model-card span { position: absolute; left: 0; top: 35px; color: var(--aqua); font-size: .75rem; letter-spacing: .12em; }
.model-card h3 { margin-bottom: 8px; font-size: 1.4rem; font-weight: 500; }
.model-card p { margin: 0; color: #b8cbd4; font-size: .92rem; }

.methods { background: var(--ice); }
.method-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 55px; }
.method-list span { padding: 17px 20px; border: 1px solid var(--line); background: white; font-family: var(--display); font-size: .9rem; }
.method-list span:nth-child(2) { border-bottom: 4px solid var(--magenta); }
.method-list span:nth-child(4) { border-bottom: 4px solid var(--lime); }
.method-list span:nth-child(6) { border-bottom: 4px solid var(--orange); }

.roadmap { color: white; background: var(--navy); overflow: hidden; }
.roadmap-head { max-width: 840px; }
.roadmap-head > p:last-child { max-width: 620px; color: #bdd1da; }
.pipeline { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 80px; }
.pipeline::before { content: ""; position: absolute; top: 30px; left: 5%; right: 5%; height: 2px; background: linear-gradient(90deg, var(--aqua), var(--lime), var(--orange)); }
.phase { position: relative; z-index: 1; padding: 0 28px 30px; }
.phase-marker { width: 60px; height: 60px; display: grid; place-items: center; margin-bottom: 30px; border: 2px solid var(--aqua); background: var(--navy); font-family: var(--display); font-size: 1.3rem; }
.phase:nth-child(2) .phase-marker { border-color: var(--lime); }
.phase:nth-child(3) .phase-marker { border-color: var(--orange); }
.phase-label { color: var(--aqua); font-size: .68rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.phase h3 { max-width: 260px; font-size: 1.8rem; font-weight: 500; }
.phase ul { min-height: 145px; padding-left: 18px; color: #c5d7de; font-size: .9rem; }
.phase strong { font-size: .74rem; color: white; text-transform: uppercase; letter-spacing: .08em; }

.proof { display: grid; grid-template-columns: minmax(330px, .75fr) 1.5fr; background: #f4f7f8; }
.proof-image { min-height: 850px; overflow: hidden; }
.proof-image img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(1) contrast(1.08); }
.proof-copy { align-self: center; }
.proof-copy h2 { color: var(--navy); }
.proof-points { margin-top: 55px; display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.proof-points article { min-height: 190px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.proof-points h3 { font-size: 1.12rem; }
.proof-points p { margin: 0; color: #5b707b; font-size: .9rem; }

.decision { background: var(--aqua-light); }
.decision-heading { max-width: 900px; }
.decision-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 60px; }
.decision-card { min-height: 300px; padding: clamp(30px, 4vw, 55px); border: 1px solid rgba(15,48,69,.25); }
.decision-card > span { font-size: .7rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.decision-card h3 { max-width: 500px; margin: 55px 0 18px; font-size: clamp(1.7rem, 3vw, 3.2rem); line-height: 1.06; font-weight: 500; }
.decision-card p { max-width: 500px; margin-bottom: 0; }
.decision-card.no { opacity: .62; }
.decision-card.yes { color: white; border-color: var(--navy); background: var(--navy); }
.decision-card.yes > span { color: var(--aqua); }

.final-cta { display: grid; grid-template-columns: 1.5fr .7fr; gap: clamp(60px, 10vw, 150px); color: white; background: var(--navy-deep); }
.cta-copy { align-self: center; }
.cta-copy > p:not(.eyebrow) { max-width: 690px; margin-bottom: 35px; color: #bed0d8; font-size: 1.1rem; }
.contact-card { padding: 46px; color: var(--navy-deep); background: var(--aqua); }
.contact-card p { margin-bottom: 15px; font-size: .68rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.contact-card strong { display: block; margin-bottom: 45px; font-family: var(--display); font-size: clamp(2rem, 4vw, 3.7rem); line-height: .95; font-weight: 500; }
.contact-card a, .contact-card span { display: block; padding: 13px 0; border-top: 1px solid rgba(15,48,69,.25); text-decoration: none; font-size: .9rem; }
footer { min-height: 150px; display: flex; align-items: center; gap: 40px; padding: 35px clamp(22px, 7vw, 110px); color: #bdced6; background: #092536; font-size: .75rem; }
.footer-brand { color: white; }
footer p { margin: 0 auto; }
footer > a:last-child { text-transform: uppercase; letter-spacing: .1em; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1000px) {
  .page-shell { width: calc(100% - 32px); }
  .site-header { gap: 20px; }
  .nav { display: none; }
  .site-header .button { margin-left: auto; }
  .hero { min-height: 760px; grid-template-columns: 1fr 310px; }
  .hero-copy { padding-left: 40px; padding-right: 40px; }
  .principles { display: none; }
  .quote-grid { grid-template-columns: 1fr 1fr; }
  .definition { grid-template-columns: 1fr; }
  .pipeline { gap: 0; }
  .phase { padding-left: 15px; padding-right: 15px; }
  .proof { grid-template-columns: 300px 1fr; }
  .proof-points { grid-template-columns: 1fr; }
  .proof-image { min-height: 1050px; }
}

@media (max-width: 720px) {
  .page-shell { width: 100%; box-shadow: none; }
  .site-header { height: 76px; padding: 0 20px; }
  .brand-word { font-size: 1.65rem; }
  .site-header .button { min-height: 38px; padding: 0 12px; font-size: .6rem; }
  .hero { min-height: 0; height: auto; display: block; position: relative; }
  .hero-copy { position: relative; z-index: 5; min-height: 0; padding: 140px 22px 64px; background: linear-gradient(180deg, rgba(15,48,69,.88), rgba(15,48,69,.97) 64%); }
  .hero h1 { font-size: clamp(3.3rem, 16vw, 5.4rem); }
  .hero-visual { position: absolute; inset: 0; }
  .metric { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .section-pad { padding: 80px 22px; }
  .quote-grid { grid-template-columns: 1fr; }
  .quote-grid blockquote { min-height: 150px; }
  .model-card { padding-left: 55px; }
  .pipeline { display: block; margin-top: 60px; }
  .pipeline::before { top: 0; bottom: 0; left: 30px; right: auto; width: 2px; height: auto; background: linear-gradient(var(--aqua), var(--lime), var(--orange)); }
  .phase { padding: 0 0 65px 72px; }
  .phase-marker { position: absolute; left: 0; width: 60px; }
  .phase-label { padding-top: 7px; }
  .phase ul { min-height: 0; }
  .proof { display: block; }
  .proof-image { min-height: 430px; height: 55vh; }
  .proof-points, .decision-grid, .final-cta { grid-template-columns: 1fr; }
  .decision-grid { gap: 12px; }
  .decision-card { min-height: 260px; }
  .contact-card { padding: 34px 26px; }
  footer { align-items: flex-start; flex-direction: column; gap: 25px; }
  footer p { margin: 0; }
}

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