:root {
  --navy: #061b2b;
  --navy-2: #0b2b3f;
  --cyan: #23bed7;
  --cyan-soft: #a9edf3;
  --cream: #f5f2ea;
  --white: #fffdf8;
  --ink: #10212c;
  --muted: #6b777d;
  --line: rgba(11, 43, 63, .16);
  --max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--cream); color: var(--ink); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.site-header { height: 86px; padding: 0 max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; justify-content: space-between; background: rgba(6, 27, 43, .94); color: var(--white); position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(255,255,255,.09); backdrop-filter: blur(16px); }
.brand { display: flex; align-items: center; gap: 12px; font-size: 13px; line-height: 1.1; font-weight: 700; letter-spacing: .02em; text-transform: uppercase; }
.brand-mark { width: 52px; height: 38px; color: var(--white); overflow: visible; }
.site-nav { display: flex; align-items: center; gap: 34px; font-size: 14px; }
.site-nav > a:not(.nav-cta) { color: rgba(255,255,255,.72); transition: color .2s; }
.site-nav > a:hover { color: var(--white); }
.nav-cta { border: 1px solid rgba(255,255,255,.32); padding: 13px 18px; border-radius: 999px; }
.menu-toggle { display: none; color: var(--white); background: none; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; padding: 9px 14px; }

.hero { min-height: calc(100vh - 86px); padding: 100px max(28px, calc((100vw - var(--max)) / 2)) 54px; background: var(--navy); color: var(--white); position: relative; overflow: hidden; display: grid; align-content: space-between; gap: 80px; }
.hero::before { content: ""; width: 520px; height: 520px; border: 1px solid rgba(255,255,255,.08); border-radius: 50%; position: absolute; top: 70px; right: -220px; }
.hero-rings i { position: absolute; display: block; border-radius: 50%; pointer-events: none; }
.hero-rings i:nth-child(1) { width: 700px; height: 700px; border: 88px solid rgba(35,190,215,.92); top: -225px; right: -330px; }
.hero-rings i:nth-child(2) { width: 870px; height: 870px; border: 4px solid rgba(255,253,248,.75); top: -312px; right: -415px; }
.hero-rings i:nth-child(3) { width: 1020px; height: 1020px; border: 70px solid rgba(13,53,80,.9); top: -390px; right: -530px; }
.hero-copy { position: relative; z-index: 2; max-width: 930px; }
.eyebrow { margin: 0 0 26px; color: var(--cyan); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .19em; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 30px; font-size: clamp(64px, 8.4vw, 126px); line-height: .88; letter-spacing: -.065em; max-width: 1000px; }
.hero-lede { max-width: 720px; color: rgba(255,255,255,.72); font-size: clamp(19px, 2vw, 25px); line-height: 1.5; }
.hero-actions { display: flex; gap: 14px; margin-top: 42px; flex-wrap: wrap; }
.button { min-height: 54px; padding: 0 23px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: 24px; font-size: 14px; font-weight: 750; transition: transform .2s, background .2s, color .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--cyan); color: var(--navy); }
.button-secondary { border: 1px solid rgba(255,255,255,.22); color: var(--white); }
.system-card { position: relative; z-index: 2; border: 1px solid rgba(255,255,255,.12); background: rgba(11,43,63,.62); backdrop-filter: blur(12px); }
.system-card-head { min-height: 54px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,.1); font-size: 11px; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.56); }
.status { display: inline-flex; align-items: center; gap: 8px; }
.status i { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(35,190,215,.12); }
.flow { display: grid; grid-template-columns: 1fr 28px 1fr 28px 1fr 28px 1fr; gap: 10px; align-items: center; padding: 24px; }
.flow article { min-height: 132px; border: 1px solid rgba(255,255,255,.11); padding: 20px; display: grid; align-content: start; gap: 7px; }
.flow b { color: var(--cyan); font-size: 10px; letter-spacing: .15em; }
.flow span { font-size: 18px; font-weight: 760; }
.flow small { color: rgba(255,255,255,.52); line-height: 1.45; }
.connector { height: 1px; background: var(--cyan); opacity: .55; }

.signal-bar { min-height: 88px; padding: 20px max(28px, calc((100vw - var(--max)) / 2)); display: flex; align-items: center; justify-content: space-between; background: var(--cyan); color: var(--navy); text-transform: uppercase; font-size: 11px; font-weight: 800; letter-spacing: .12em; }
.signal-bar i { width: 5px; height: 5px; background: var(--navy); border-radius: 50%; opacity: .5; }
.section-pad { padding: 126px max(28px, calc((100vw - var(--max)) / 2)); }
.section-label { color: var(--cyan); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .19em; }
.intro { display: grid; grid-template-columns: .4fr 1.6fr; gap: 70px; }
.intro-copy h2, .section-heading h2, .model-title h2, .standards-copy h2, .closing h2 { font-size: clamp(42px, 6vw, 82px); line-height: .98; letter-spacing: -.055em; }
.intro-copy h2 em { font-style: normal; color: var(--cyan); }
.intro-copy > p { max-width: 740px; margin: 42px 0 0; color: var(--muted); font-size: 20px; line-height: 1.65; }

.services { background: var(--white); }
.section-heading { max-width: 860px; margin-bottom: 72px; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service { min-height: 480px; padding: 36px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.service-number { color: var(--cyan); font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.service h3 { margin: 94px 0 20px; font-size: 30px; letter-spacing: -.035em; }
.service p { color: var(--muted); line-height: 1.65; }
.service ul { list-style: none; padding: 0; margin: auto 0 0; border-top: 1px solid var(--line); }
.service li { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 13px; }

.model { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; background: #e7e4dc; }
.model-title { position: sticky; top: 130px; align-self: start; }
.model-title > p:last-child { max-width: 520px; color: var(--muted); font-size: 18px; line-height: 1.65; }
.steps { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.steps li { display: grid; grid-template-columns: 70px 1fr; gap: 20px; padding: 34px 0 42px; border-bottom: 1px solid var(--line); }
.steps b { color: var(--cyan); font-size: 12px; letter-spacing: .14em; }
.steps h3 { font-size: 28px; margin-bottom: 12px; }
.steps p { color: var(--muted); line-height: 1.65; }

.standards { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; background: var(--navy-2); color: var(--white); }
.standards-copy { align-self: start; }
.standards-copy p:last-child { max-width: 530px; color: rgba(255,255,255,.6); font-size: 18px; line-height: 1.7; }
.standards-list { border-top: 1px solid rgba(255,255,255,.14); }
.standards-list article { display: grid; grid-template-columns: 62px 1fr; gap: 22px; padding: 28px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.standards-list span { color: var(--cyan); font-size: 11px; font-weight: 800; letter-spacing: .14em; }
.standards-list h3 { font-size: 22px; margin-bottom: 7px; }
.standards-list p { color: rgba(255,255,255,.54); line-height: 1.55; margin-bottom: 0; }

.closing { min-height: 660px; background: var(--cyan); color: var(--navy); display: flex; flex-direction: column; justify-content: center; }
.closing .eyebrow { color: var(--navy); opacity: .65; }
.closing h2 { max-width: 1100px; }
.closing-actions { display: flex; align-items: center; gap: 28px; margin-top: 32px; flex-wrap: wrap; }
.button-light { background: var(--white); color: var(--navy); }
.closing-actions > a:last-child { font-weight: 750; border-bottom: 1px solid currentColor; padding-bottom: 4px; }

footer { min-height: 180px; padding: 44px max(28px, calc((100vw - var(--max)) / 2)); background: var(--navy); color: rgba(255,255,255,.62); display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer-brand { display: flex; align-items: center; gap: 12px; color: var(--white); font-size: 14px; font-weight: 750; }
.footer-contact { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; font-size: 12px; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .site-header { height: 74px; }
  .menu-toggle { display: block; }
  .site-nav { display: none; position: absolute; top: 74px; left: 0; right: 0; padding: 24px 28px 30px; background: var(--navy); flex-direction: column; align-items: stretch; gap: 20px; border-top: 1px solid rgba(255,255,255,.1); }
  .site-nav.open { display: flex; }
  .nav-cta { text-align: center; }
  .hero { min-height: auto; padding-top: 74px; gap: 60px; }
  .hero-rings i:nth-child(1) { right: -530px; opacity: .55; }
  .hero-rings i:nth-child(2), .hero-rings i:nth-child(3) { display: none; }
  .flow { grid-template-columns: 1fr 1fr; }
  .connector { display: none; }
  .signal-bar { gap: 14px; overflow: hidden; justify-content: flex-start; }
  .signal-bar span { white-space: nowrap; }
  .intro, .model, .standards { grid-template-columns: 1fr; gap: 54px; }
  .model-title { position: static; }
  .service-grid { grid-template-columns: 1fr; }
  .service { min-height: 380px; }
  .service h3 { margin-top: 60px; }
  footer { align-items: flex-start; flex-direction: column; }
  .footer-contact { align-items: flex-start; }
}

@media (max-width: 560px) {
  .brand span { display: none; }
  .hero { padding-top: 58px; }
  h1 { font-size: 58px; }
  .hero-lede { font-size: 18px; }
  .flow { grid-template-columns: 1fr; }
  .system-card-head { align-items: flex-start; flex-direction: column; gap: 8px; padding: 16px; }
  .section-pad { padding-top: 88px; padding-bottom: 88px; }
  .intro-copy h2, .section-heading h2, .model-title h2, .standards-copy h2, .closing h2 { font-size: 42px; }
  .service { padding: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}