@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display&family=Source+Sans+3:wght@300;400;500;600&family=Source+Code+Pro:wght@500&display=swap');

:root {
  --ink: #071c2c;
  --ink-2: #21384a;
  --muted: #607283;
  --paper: #f8faf8;
  --white: #ffffff;
  --line: #dce6e4;
  --line-dark: rgba(255,255,255,.18);
  --north: #0c7368;
  --north-dark: #08554e;
  --signal: #d7ed72;
  --signal-soft: #eff8c9;
  --night: #0b2430;
  --serif: 'DM Serif Display', Georgia, serif;
  --sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'Source Code Pro', ui-monospace, monospace;
  --shadow: 0 24px 48px -32px rgba(7, 28, 44, .38), 0 12px 26px -20px rgba(7, 28, 44, .22);
  --wrap: min(1160px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; }
.skip-link {
  position: fixed; left: 12px; top: -60px; z-index: 100;
  padding: 10px 14px; background: var(--white); border: 1px solid var(--ink);
}
.skip-link:focus { top: 12px; }
.wrap { width: var(--wrap); margin-inline: auto; }
.eyebrow {
  margin: 0 0 18px; color: var(--north); font: 500 12px/1.2 var(--mono);
  letter-spacing: .14em; text-transform: uppercase;
}
.eyebrow.light { color: var(--signal); }

.site-header {
  position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(7,28,44,.09);
  background: rgba(248,250,248,.92); backdrop-filter: blur(18px);
}
.nav-shell { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 600; letter-spacing: -.01em; }
.brand-mark { width: 34px; height: 34px; position: relative; border: 1px solid var(--north); transform: rotate(45deg); }
.brand-mark::before, .brand-mark::after { content: ''; position: absolute; background: var(--north); }
.brand-mark::before { width: 1px; height: 52px; left: 16px; top: -10px; }
.brand-mark::after { width: 52px; height: 1px; top: 16px; left: -10px; }
.brand-name { white-space: nowrap; }
.primary-nav { display: flex; align-items: center; gap: 28px; }
.primary-nav a { color: var(--ink-2); font-size: 15px; font-weight: 500; text-decoration: none; }
.primary-nav a:hover, .primary-nav a[aria-current='page'] { color: var(--north); }
.nav-cta { padding: 10px 14px; border: 1px solid var(--north); border-radius: 4px; }
.nav-cta:hover { background: var(--north); color: white !important; }
.menu-toggle { display: none; min-width: 44px; min-height: 44px; border: 1px solid var(--line); background: transparent; color: var(--ink); }

.hero { overflow: hidden; padding: 104px 0 88px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.18fr) minmax(330px, .82fr); gap: 76px; align-items: center; }
h1, h2, h3 { margin: 0; text-wrap: balance; }
h1 { max-width: 760px; font: 400 clamp(54px, 6.3vw, 88px)/.94 var(--serif); letter-spacing: -.035em; }
h2 { font: 400 clamp(40px, 4.2vw, 60px)/1 var(--serif); letter-spacing: -.025em; }
h3 { font: 400 29px/1.12 var(--serif); }
.lede { max-width: 680px; margin: 28px 0 0; color: var(--muted); font-size: clamp(19px, 1.8vw, 23px); line-height: 1.45; font-weight: 300; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 11px 18px; border: 1px solid var(--north); border-radius: 4px; color: white; background: var(--north); text-decoration: none; font-weight: 500; }
.button:hover { background: var(--north-dark); }
.button.secondary { color: var(--north); background: transparent; }
.button.secondary:hover { background: rgba(12,115,104,.06); }

.workflow-figure { position: relative; min-height: 520px; }
.workflow-card { position: absolute; width: min(360px, 92%); padding: 25px; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.workflow-card small { color: var(--north); font: 500 11px var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.workflow-card strong { display: block; margin-top: 10px; font: 400 24px/1.15 var(--serif); }
.workflow-card p { margin: 11px 0 0; color: var(--muted); font-size: 15px; }
.workflow-card.one { top: 10px; right: 30px; }
.workflow-card.two { top: 190px; left: 0; border-color: var(--north); }
.workflow-card.three { top: 365px; right: 0; background: var(--night); color: white; border-color: var(--night); }
.workflow-card.three p { color: rgba(255,255,255,.68); }
.connector { position: absolute; border-left: 1px dashed var(--north); height: 75px; opacity: .55; }
.connector.c1 { top: 123px; right: 180px; transform: rotate(31deg); }
.connector.c2 { top: 305px; left: 185px; transform: rotate(-28deg); }

.signal-band { background: var(--signal); border-block: 1px solid rgba(7,28,44,.12); }
.signal-grid { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); }
.signal-intro, .signal-item { min-height: 154px; padding: 30px; }
.signal-item { border-left: 1px solid rgba(7,28,44,.16); }
.signal-intro strong { font: 400 27px/1.15 var(--serif); }
.signal-item span { display: block; color: rgba(7,28,44,.62); font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.signal-item strong { display: block; margin-top: 12px; font-size: 18px; line-height: 1.25; }

.section { padding: 110px 0; }
.section.white { background: var(--white); }
.section.dark { color: white; background: var(--night); }
.section-head { display: grid; grid-template-columns: .65fr 1.35fr; gap: 60px; align-items: start; margin-bottom: 58px; }
.section-head p { max-width: 650px; margin: 4px 0 0; color: var(--muted); font-size: 19px; }
.dark .section-head p { color: rgba(255,255,255,.65); }

.offer-list { border-top: 1px solid var(--line); }
.offer-row { display: grid; grid-template-columns: 100px .95fr 1.25fr 150px; gap: 32px; padding: 34px 0; border-bottom: 1px solid var(--line); align-items: start; }
.offer-index { color: var(--north); font: 500 12px var(--mono); }
.offer-row h3 { font-size: 32px; }
.offer-row p { margin: 0; color: var(--muted); }
.duration { color: var(--ink-2); font: 500 13px var(--mono); text-align: right; }
.boundary { margin-top: 30px; padding: 18px 22px; border: 1px solid var(--line); color: var(--muted); background: #f3f7f5; font-size: 15px; }
.boundary strong { color: var(--ink); }

.principle-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.principle-copy p { margin: 25px 0 0; color: rgba(255,255,255,.68); font-size: 20px; }
.decision-stack { border-top: 1px solid var(--line-dark); }
.decision { display: grid; grid-template-columns: 42px 1fr; gap: 16px; padding: 21px 0; border-bottom: 1px solid var(--line-dark); }
.decision b { color: var(--signal); font: 500 11px var(--mono); }
.decision span { color: rgba(255,255,255,.82); }

.steps { counter-reset: steps; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.step { min-height: 265px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); counter-increment: steps; }
.step::before { content: '0' counter(steps); display: block; margin-bottom: 60px; color: var(--north); font: 500 12px var(--mono); }
.step h3 { font-size: 25px; }
.step p { margin: 14px 0 0; color: var(--muted); font-size: 15px; }

.quote-section { padding: 100px 0; background: var(--signal-soft); }
.quote { max-width: 930px; margin: 0; font: 400 clamp(38px, 4.5vw, 65px)/1.06 var(--serif); letter-spacing: -.025em; }
.quote-source { margin-top: 30px; color: var(--north); font: 500 12px var(--mono); text-transform: uppercase; letter-spacing: .12em; }

.page-hero { padding: 92px 0 70px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 950px; font-size: clamp(50px, 6vw, 80px); }
.page-hero .lede { max-width: 760px; }
.detail-grid { display: grid; grid-template-columns: 300px 1fr; gap: 90px; }
.detail-aside { position: sticky; top: 110px; align-self: start; }
.detail-aside p { margin: 0; color: var(--muted); }
.detail-aside ul { list-style: none; padding: 18px 0 0; margin: 22px 0 0; border-top: 1px solid var(--line); }
.detail-aside li { padding: 8px 0; color: var(--ink-2); font-size: 15px; }
.detail-block { padding: 0 0 58px; margin-bottom: 58px; border-bottom: 1px solid var(--line); }
.detail-block:last-child { border-bottom: 0; margin-bottom: 0; }
.detail-block h2 { font-size: 48px; }
.detail-block > p { max-width: 760px; margin: 23px 0 0; color: var(--muted); font-size: 19px; }
.output-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0; list-style: none; padding: 0; margin: 30px 0 0; border-top: 1px solid var(--line); }
.output-list li { padding: 17px 16px 17px 0; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.output-list li:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--line); }
.kicker-card { margin-top: 32px; padding: 28px; color: white; background: var(--night); }
.kicker-card strong { display: block; font: 400 28px var(--serif); }
.kicker-card p { margin: 12px 0 0; color: rgba(255,255,255,.67); }

.values { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.value { padding: 35px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.value b { color: var(--north); font: 500 11px var(--mono); letter-spacing: .1em; }
.value h3 { margin-top: 28px; }
.value p { color: var(--muted); }

.article { width: min(760px, calc(100vw - 48px)); margin: 0 auto; }
.article-header { padding: 92px 0 52px; }
.article-header h1 { font-size: clamp(48px, 6vw, 76px); }
.article-meta { margin-top: 24px; color: var(--north); font: 500 12px var(--mono); text-transform: uppercase; letter-spacing: .1em; }
.article-body { padding-bottom: 110px; }
.article-body h2 { margin-top: 60px; font-size: 40px; }
.article-body p, .article-body li { color: var(--ink-2); font-size: 19px; line-height: 1.7; }
.article-body blockquote { margin: 54px 0; padding: 28px 0 28px 32px; border-left: 3px solid var(--north); font: 400 32px/1.2 var(--serif); }
.article-body blockquote p { margin: 0; color: var(--ink); font: inherit; }

.cta { padding: 88px 0; color: white; background: var(--north); }
.cta-grid { display: flex; justify-content: space-between; gap: 50px; align-items: end; }
.cta h2 { max-width: 760px; }
.cta p { max-width: 630px; margin: 22px 0 0; color: rgba(255,255,255,.75); font-size: 19px; }
.cta .button { flex: 0 0 auto; color: var(--ink); background: var(--signal); border-color: var(--signal); }

.site-footer { padding: 54px 0 32px; color: rgba(255,255,255,.72); background: #061722; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 60px; }
.site-footer .brand { color: white; }
.site-footer .brand-mark { border-color: var(--signal); }
.site-footer .brand-mark::before, .site-footer .brand-mark::after { background: var(--signal); }
.site-footer h3 { color: white; font: 500 11px var(--mono); text-transform: uppercase; letter-spacing: .12em; }
.site-footer p, .site-footer a { color: rgba(255,255,255,.62); font-size: 14px; }
.site-footer nav { display: grid; gap: 9px; margin-top: 16px; }
.site-footer nav a { text-decoration: none; }
.demo-note { margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; color: rgba(255,255,255,.42); }

:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }
@media (max-width: 900px) {
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .primary-nav { display: none; position: absolute; inset: 76px 0 auto; padding: 22px 24px; background: var(--paper); border-bottom: 1px solid var(--line); flex-direction: column; align-items: flex-start; }
  .primary-nav.open { display: flex; }
  .hero-grid, .principle-grid, .detail-grid { grid-template-columns: 1fr; }
  .workflow-figure { max-width: 600px; min-height: 500px; }
  .signal-grid { grid-template-columns: 1fr 1fr; }
  .signal-item:nth-child(3) { border-left: 0; border-top: 1px solid rgba(7,28,44,.16); }
  .signal-item:nth-child(4) { border-top: 1px solid rgba(7,28,44,.16); }
  .section-head { grid-template-columns: 1fr; gap: 20px; }
  .offer-row { grid-template-columns: 60px 1fr; }
  .offer-row p, .offer-row .duration { grid-column: 2; text-align: left; }
  .steps { grid-template-columns: 1fr 1fr; }
  .detail-aside { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  :root { --wrap: min(100% - 32px, 1160px); }
  body { font-size: 16px; }
  .hero { padding: 70px 0 55px; }
  h1 { font-size: 50px; }
  .workflow-figure { min-height: auto; display: grid; gap: 12px; }
  .workflow-card { position: static; width: 100%; }
  .connector { display: none; }
  .signal-grid, .steps, .values, .output-list { grid-template-columns: 1fr; }
  .signal-item, .signal-item:nth-child(3), .signal-item:nth-child(4) { border-left: 0; border-top: 1px solid rgba(7,28,44,.16); }
  .offer-row { grid-template-columns: 1fr; gap: 12px; }
  .offer-row p, .offer-row .duration { grid-column: 1; }
  .step::before { margin-bottom: 30px; }
  .output-list li:nth-child(even) { padding-left: 0; border-left: 0; }
  .cta-grid { display: block; }
  .cta .button { margin-top: 28px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > :first-child { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }