@charset "UTF-8";

:root {
  color-scheme: dark;
  --navy: #081727;
  --ink: #edf3f7;
  --muted: #9bafc1;
  --quiet: #7892a8;
  --mint: #82e2ce;
  --line: #20374a;
  --mono: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-family: var(--sans);
  background: var(--navy);
  color: var(--ink);
  font-synthesis: none;
}

* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
::selection { color: var(--navy); background: var(--mint); }
:focus-visible { outline: 2px solid var(--mint); outline-offset: 6px; }
.wrap { width: min(1280px, calc(100% - 112px)); margin-inline: auto; }
.skip-link { position: absolute; top: 8px; left: 8px; padding: 12px 20px; background: var(--mint); color: var(--navy); transform: translateY(-160%); z-index: 5; }
.skip-link:focus { transform: translateY(0); }

.site-header { display: flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 158px; padding-block: 12px; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
/* Keep the supplied JPEG unchanged; present its artwork in light on navy until the vector arrives. */
.brand-logo { display: block; width: 156px; height: auto; filter: invert(1) grayscale(1) brightness(1.5); mix-blend-mode: screen; }
.primary-nav { display: flex; align-items: center; gap: 31px; font-size: 13px; }
.primary-nav a { display: inline-flex; align-items: center; min-height: 44px; color: #b7c8d7; transition: color 140ms ease, border-color 140ms ease; }
.primary-nav a:hover { color: var(--mint); }
.primary-nav a[aria-current="page"] { color: var(--mint); }
.primary-nav .nav-contact { padding: 12px 17px; border: 1px solid #3c566a; border-radius: 3px; color: var(--ink); }
.nav-contact span { margin-left: 13px; color: var(--mint); }
.primary-nav .nav-contact:hover { border-color: var(--mint); }
.primary-nav .nav-contact[aria-current="page"] { border-color: #628d91; }

.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 32px; align-items: center; padding-block: 64px; }
.hero-copy { position: relative; z-index: 1; animation: enter 220ms ease-out both; }
.eyebrow { margin: 0 0 24px; font: 11px/1.5 var(--mono); letter-spacing: 1.3px; text-transform: uppercase; color: #b7c8d7; }
.eyebrow > span { color: var(--mint); margin-right: 10px; }
h1 { font-size: clamp(48px, 5.5vw, 79px); letter-spacing: -.066em; line-height: 1.075; font-weight: 600; margin: 0; }
h1 > span { color: var(--mint); }
.intro { color: #afc0d0; max-width: 430px; font-size: 17px; line-height: 1.85; margin: 26px 0 30px; }
.hero-actions { display: flex; align-items: center; gap: 28px; }
.button { display: inline-flex; align-items: center; gap: 25px; min-height: 49px; padding: 14px 19px; background: var(--mint); border: 1px solid var(--mint); border-radius: 3px; color: #092834; font-size: 13px; font-weight: 600; transition: background 140ms ease, transform 140ms ease; }
.button:hover { background: #a1eddd; transform: translateY(-2px); }
.button span { font-size: 18px; line-height: 1; }
.text-link { font-size: 13px; color: #d1dee8; padding-block: 12px; }
.text-link span { display: inline-block; color: var(--mint); margin-left: 10px; transition: transform 140ms ease; }
.text-link:hover span { transform: translateX(4px); }
.location { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: var(--quiet); font: 10px/1.6 var(--mono); margin: 32px 0 0; }
.location .location-separator { color: #476279; }
.location-mark { width: 7px; height: 7px; border: 1px solid #89a6bb; border-radius: 50%; }

.hero-art { margin: 0; width: 100%; min-width: 0; container-type: inline-size; animation: enter 240ms ease-out both; }
.art-heading { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 16px; padding-inline: 3.4%; color: #9ab3c6; font: 10px/1.6 var(--mono); letter-spacing: 1.2px; }
.art-heading span:last-child { color: var(--quiet); white-space: nowrap; }
.hero-art figcaption { margin: 16px auto 0; color: #b0c7d6; font: 12px/1.7 var(--mono); text-align: center; }
.hero-art figcaption > span { color: var(--mint); margin-right: 6px; }
.hero-art figcaption small { display: block; font-size: 11px; color: var(--quiet); margin-top: 3px; }

/* Both compositions carry the same meaning. Switch by drawing width, not device type. */
.diagram-graphic { display: block; width: 100%; height: auto; overflow: visible; font-family: var(--sans); }
.diagram-compact { display: none; }
.diagram-icon { fill: none; stroke: #a8c6d6; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.node-shell { stroke: #36576d; stroke-width: 1; transition: stroke 160ms ease, filter 160ms ease; }
.node-title { fill: var(--ink); font-size: 16.5px; font-weight: 500; letter-spacing: -.3px; }
.node-detail { fill: #a2bacb; font: 12.5px var(--mono); }
.stage-label { fill: #8ca7bc; font: 10.5px var(--mono); letter-spacing: 1.1px; }
.diagram-route { fill: none; stroke-width: 1.3; stroke-linecap: round; stroke-linejoin: round; }
.diagram-route.forward { stroke: #669caa; }
.diagram-route.observed { stroke: #688ca4; stroke-dasharray: 3 5; }
.diagram-signal { fill: none; stroke: #b4ffeb; stroke-width: 2.5; stroke-linecap: round; stroke-dasharray: 12 100; opacity: 0; pointer-events: none; }
.is-in-view .diagram-signal { animation: diagram-signal 850ms ease-in-out var(--signal-delay) both; }
.route-label { fill: #b0d3d9; font: 12px var(--mono); }
.observed-label { fill: #91acc1; }
.route-label-backing { fill: var(--navy); }
.core-shell { stroke: #76c9bd; }
.core-depth { fill: #0b1e2e; stroke: #355767; }
.core-tool { fill: var(--mint); font: 14px var(--mono); }
.reconcile-node .diagram-icon { stroke: var(--mint); }
.core-footnote { fill: #8aaebb; font: 12px var(--mono); }
.platform-depth { fill: #0a1a29; stroke: #294558; }
.platform-shell { stroke: #50788c; }
.platform-corner { fill: none; stroke: #82e2ce; stroke-width: 2; stroke-linecap: round; }
.platform-title { fill: var(--ink); font-size: 20px; font-weight: 500; letter-spacing: -.4px; }
.platform-note { fill: #83a5ba; font: 9px var(--mono); letter-spacing: 1px; }
.operator-band { fill: #143342; stroke: #365c6c; }
.operator-label { fill: #bfd9df; font: 12.5px var(--mono); }
.service-route { fill: none; stroke: #527c8d; stroke-width: 1; }
.service-shell { fill: #0b2031; stroke: #36596e; }
.service-label { fill: #c3d8e4; font: 11.5px var(--mono); }
.service-node .diagram-icon { stroke: #87c9c5; }
.support-divider { stroke: #2a4559; stroke-width: 1; }
.support-heading { fill: #8fa9bd; font: 10.5px var(--mono); letter-spacing: 1px; }
.support-shell { fill: #0b1e2e; stroke: #2e4a5f; }
.support-title { fill: #d3e1eb; font-size: 16px; font-weight: 500; }
.support-detail { fill: #9db8c9; font-size: 13px; }
.support-arrow { fill: none; stroke: #709caf; stroke-width: 1.2; stroke-linecap: round; stroke-linejoin: round; }
.draft-mark { fill: none; stroke: #426178; stroke-width: 1; }
.diagram-compact .node-title { font-size: 20px; }
.diagram-compact .node-detail { font-size: 14px; }
.diagram-compact .core-tool { font-size: 15px; }
.diagram-compact .route-label { font-size: 13px; }
.diagram-compact .platform-title { font-size: 21px; }
.diagram-compact .operator-label { font-size: 13px; }
.diagram-compact .service-label { font-size: 12px; }
.diagram-compact .support-title { font-size: 18px; }
.diagram-compact .support-detail { font-size: 14px; }
.diagram-compact .support-heading { font-size: 11px; }

@container (max-width: 559px) {
  .diagram-layout { max-width: 380px; margin-inline: auto; }
  .diagram-wide { display: none; }
  .diagram-compact { display: block; }
  .art-heading { padding-inline: 4%; font-size: 9px; letter-spacing: .8px; }
}

@media (hover: hover) and (pointer: fine) {
  .diagram-node:hover > .node-shell { stroke: var(--mint); filter: drop-shadow(0 0 7px #82e2ce20); }
}

@keyframes diagram-signal {
  0% { stroke-dashoffset: 12; opacity: 0; }
  15%, 80% { opacity: .95; }
  100% { stroke-dashoffset: -100; opacity: 0; }
}

.toolkit { display: flex; align-items: center; gap: 42px; padding-block: 23px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.toolkit h2 { margin: 0; font: 10px var(--mono); letter-spacing: 1px; text-transform: uppercase; color: var(--quiet); flex-shrink: 0; }
.toolkit ul { display: flex; flex-wrap: wrap; align-items: center; gap: 34px; padding: 0; margin: 0; list-style: none; }
.toolkit li { color: #c1d0db; font: 12px/1.6 var(--mono); }
.toolkit li span { color: var(--quiet); }
.toolkit li + li::before { content: "+"; color: #456076; margin-right: 34px; }

.about-summary { display: grid; grid-template-columns: 1fr 1.12fr; gap: 85px; padding-block: 45px; border-bottom: 1px solid var(--line); scroll-margin-top: 28px; }
.about-summary .eyebrow { margin-bottom: 19px; font-size: 10px; }
.about-summary h2 { margin: 0; font-size: clamp(25px, 2.5vw, 33px); letter-spacing: -.045em; font-weight: 500; line-height: 1.25; }
.about-summary h2 small { display: block; margin-top: 11px; color: #a1b6c8; font-size: 14px; font-weight: 400; letter-spacing: 0; line-height: 1.6; }
.about-copy p { margin: 0 0 13px; max-width: 570px; color: #afc0d0; font-size: 15px; line-height: 1.85; }
.about-copy strong { color: #dce7ef; font-weight: 500; }
.about-copy .text-link { display: inline-flex; align-items: center; min-height: 44px; }

.site-footer { display: flex; justify-content: space-between; gap: 24px; align-items: center; padding-block: 24px; }
.site-footer p { margin: 0; color: var(--quiet); font-size: 10px; line-height: 1.8; }
.footer-details { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; }
.footer-details p { font: 9px/1.8 var(--mono); }
.footer-details p > span { margin-inline: 6px; color: #527087; }
.footer-details a { display: inline-flex; align-items: center; min-height: 44px; color: #c0d1df; font-size: 12px; }
.footer-details a > span { margin-left: 9px; color: var(--mint); }
.footer-details a:hover { color: var(--mint); }

.contact-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 110px; align-items: center; padding-block: 83px 85px; }
.contact-intro { animation: enter 220ms ease-out both; }
.contact-hero h1 { font-size: clamp(57px, 6vw, 86px); }
.contact-hero .intro { max-width: 440px; margin-bottom: 28px; }
.contact-person { margin: 0; border-left: 2px solid #487e83; padding-left: 17px; }
.contact-person strong { display: block; color: #dce7ef; font-size: 15px; font-weight: 500; }
.contact-person > span { display: block; margin-top: 8px; color: #93acbf; font: 10px/1.9 var(--mono); }
.contact-methods { min-width: 0; animation: enter 240ms ease-out both; }
.contact-label { margin: 0 0 18px; color: var(--quiet); font: 10px/1.6 var(--mono); letter-spacing: 1px; text-transform: uppercase; }
.contact-method { display: block; padding-block: 29px; border-top: 1px solid #3a586e; border-bottom: 1px solid #3a586e; }
.contact-method-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.contact-value { font-size: clamp(28px, 3vw, 40px); font-weight: 500; line-height: 1.2; letter-spacing: -.045em; transition: color 140ms ease; }
.contact-arrow { color: var(--mint); font-size: 31px; line-height: 1; transition: transform 140ms ease; }
.contact-profile { display: block; margin-top: 20px; color: #c4d3de; font-size: 14px; }
.contact-description { display: block; margin-top: 7px; color: #93acbf; font-size: 13px; line-height: 1.8; }
.contact-method:hover .contact-value { color: var(--mint); }
.contact-method:hover .contact-arrow { transform: translate(2px, -2px); }
.contact-footnote { margin: 17px 0 0; color: var(--quiet); font: 9px/1.8 var(--mono); }
.contact-footnote > span { margin-inline: 8px; color: #527087; }
.contact-context { display: grid; grid-template-columns: 1fr 1fr; gap: 110px; align-items: center; padding-block: 34px 38px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.contact-context .eyebrow { margin-bottom: 15px; font-size: 10px; }
.contact-context h2 { margin: 0; font-size: 25px; font-weight: 500; letter-spacing: -.04em; line-height: 1.3; }
.contact-context > p { margin: 0; max-width: 480px; color: #a5bbcc; font-size: 15px; line-height: 1.85; }

@keyframes enter { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: translateY(0); } }

@media (min-width: 1500px) {
  .hero { padding-block: 95px 80px; }
}

@media (max-width: 1100px) {
  .wrap { width: calc(100% - 72px); }
  .primary-nav { gap: 23px; }
  .hero { gap: 0; padding-block: 67px 55px; }
  h1 { font-size: clamp(44px, 5.8vw, 64px); }
  .intro { font-size: 15px; max-width: 360px; }
  .location { font-size: 9px; gap: 8px; }
  .toolkit { gap: 28px; }
  .toolkit ul { gap: 20px; }
  .toolkit li + li::before { margin-right: 20px; }
  .about-summary { gap: 50px; }
  .contact-hero, .contact-context { gap: 65px; }
}

@media (max-width: 780px) {
  .wrap { width: calc(100% - 48px); }
  .site-header { min-height: 0; padding-block: 18px; gap: 24px; }
  .brand-logo { width: 132px; }
  .primary-nav { justify-content: flex-end; gap: 22px; font-size: 12px; }
  .primary-nav a { min-height: 44px; display: inline-flex; align-items: center; }
  .primary-nav .nav-contact { border: 0; padding: 0; color: var(--mint); }
  .nav-contact span { margin-left: 8px; }
  .hero { grid-template-columns: 1fr; padding-block: 48px 35px; }
  h1 { font-size: clamp(43px, 8.8vw, 68px); }
  .eyebrow { margin-bottom: 21px; font-size: 10px; }
  .intro { font-size: 16px; max-width: 450px; margin-block: 21px 25px; }
  .location { display: grid; grid-template-columns: 7px 1fr; gap: 4px 10px; font-size: 10px; margin-top: 26px; }
  .location-mark { margin-top: 5px; }
  .location .location-separator { display: none; }
  .location-place { grid-column: 2; }
  .toolkit { align-items: flex-start; flex-direction: column; gap: 13px; padding-block: 24px; }
  .toolkit ul { gap: 12px 18px; }
  .toolkit li { font-size: 11px; }
  .toolkit li + li::before { content: none; }
  .about-summary { grid-template-columns: 1fr; gap: 22px; padding-block: 32px 27px; }
  .about-summary .eyebrow { margin-bottom: 16px; font-size: 9px; }
  .about-summary h2 { font-size: 29px; }
  .about-summary h2 small { margin-top: 8px; font-size: 13px; }
  .about-copy p { font-size: 14px; }
  .site-footer { padding-block: 24px; flex-direction: column; align-items: flex-start; gap: 13px; }
  .footer-details { flex-direction: column; align-items: flex-start; gap: 4px; }
  .footer-details p { font-size: 8px; }
  .contact-hero { grid-template-columns: 1fr; gap: 42px; padding-block: 48px 34px; }
  .contact-hero h1 { font-size: clamp(54px, 11vw, 76px); }
  .contact-hero .intro { margin-block: 21px 24px; }
  .contact-person strong { font-size: 14px; }
  .contact-person > span { font-size: 10px; }
  .contact-label { margin-bottom: 14px; }
  .contact-method { padding-block: 24px; }
  .contact-value { font-size: 32px; }
  .contact-arrow { font-size: 27px; }
  .contact-profile { margin-top: 17px; }
  .contact-context { grid-template-columns: 1fr; gap: 20px; padding-block: 30px; }
  .contact-context .eyebrow { font-size: 9px; }
  .contact-context h2 { font-size: 24px; }
  .contact-context > p { font-size: 14px; }
}

@media (max-width: 360px) {
  .wrap { width: calc(100% - 36px); }
  .site-header { gap: 20px; }
  .brand-logo { width: 112px; }
  .primary-nav { gap: 18px; font-size: 11px; }
  h1 { font-size: 40px; }
  .hero-actions { gap: 21px; }
  .button { padding-inline: 14px; gap: 17px; font-size: 12px; }
  .text-link { font-size: 12px; }
  .location { font-size: 9px; }
  .about-summary h2 { font-size: 26px; }
  .contact-footnote { font-size: 8px; }
}

/* Give the illustration room before the two-column hero becomes cramped. */
@media (max-width: 1240px) {
  .hero { grid-template-columns: 1fr; gap: 38px; }
  .hero-copy { max-width: 760px; }
  .hero-art { width: min(100%, 700px); margin-inline: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .button:hover, .text-link:hover span, .contact-method:hover .contact-arrow { transform: none; }
}