:root {
  --ink: #111827;
  --muted: #5d687c;
  --line: #d9e0eb;
  --soft: #f5f7fb;
  --blue: #0d4ed8;
  --blue-dark: #093ba9;
  --blue-soft: #e9f0ff;
  --coral: #ff6659;
  --coral-soft: #fff0ed;
  --white: #fff;
  --max: 1440px;
  --gutter: clamp(22px, 4.5vw, 72px);
  font-family: Inter, "Manrope", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--white); color: var(--ink); }
a { color: inherit; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 20; padding: 12px 16px; color: #fff; background: var(--ink); }
.skip-link:focus { top: 12px; }

.site-header,
.hero,
.chain,
.cases,
.evidence,
.cta,
.footer {
  width: min(100%, var(--max));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-header {
  min-height: 88px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  border-bottom: 1px solid var(--line);
}
.brand { text-decoration: none; font-weight: 850; font-size: 26px; letter-spacing: -.04em; }
.nav { display: flex; gap: clamp(24px, 3vw, 52px); }
.nav a { text-decoration: none; font-size: 15px; font-weight: 650; }
.nav a:hover, .nav a:focus-visible { color: var(--blue); }
.site-header > .button { justify-self: end; }

.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  padding: 0 26px;
  border: 1px solid var(--blue);
  border-radius: 8px;
  color: #fff;
  background: var(--blue);
  font-size: 16px;
  font-weight: 720;
  text-decoration: none;
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}
.button:hover { background: var(--blue-dark); border-color: var(--blue-dark); transform: translateY(-1px); }
.button:focus-visible, a:focus-visible { outline: 3px solid #80aaff; outline-offset: 3px; }
.button--small { min-height: 46px; font-size: 14px; padding-inline: 20px; }
.button--ghost { color: var(--ink); border-color: #aeb8c8; background: #fff; }
.button--ghost:hover { color: var(--blue); background: var(--blue-soft); border-color: var(--blue); }
.button--wide { width: 100%; }

.hero {
  min-height: 670px;
  display: grid;
  grid-template-columns: minmax(520px, 1fr) minmax(520px, 1fr);
  align-items: center;
  gap: clamp(42px, 4vw, 64px);
  padding-top: 58px;
  padding-bottom: 58px;
}
.hero h1 { margin: 0; max-width: 760px; font-size: clamp(48px, 4vw, 64px); line-height: .98; letter-spacing: -.065em; }
.hero__copy > p { max-width: 680px; margin: 34px 0 0; color: var(--muted); font-size: clamp(20px, 1.7vw, 28px); line-height: 1.42; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 40px; }

.flow {
  min-height: 450px;
  display: grid;
  grid-template-columns: 1.05fr 48px .9fr 48px 1fr;
  align-items: center;
  position: relative;
  padding: 38px 10px;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 82px 82px;
  background-position: -1px -1px;
}
.flow::after { content: ""; position: absolute; left: 9%; right: 7%; bottom: 54px; height: 2px; background: var(--blue); }
.flow__item { position: relative; z-index: 1; }
.flow__arrow { z-index: 2; color: var(--blue); text-align: center; font-size: 35px; }
.flow__icon { width: 44px; height: 44px; display: grid; place-items: center; margin-bottom: 10px; border-radius: 50%; color: #fff; background: var(--blue); }
.flow__icon svg { width: 23px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.bubble { margin: 8px 0 8px 16px; padding: 17px 18px; border: 1px solid #aebbd0; border-radius: 16px 16px 16px 3px; color: var(--muted); background: #fff; font-size: 13px; line-height: 1.35; }
.bubble--answer { margin-left: 40px; border-color: #b8ccff; border-radius: 16px 16px 3px 16px; background: var(--blue-soft); }
.flow__record, .flow__quality { display: grid; gap: 13px; padding: 22px; border: 1px solid #aebbd0; border-radius: 12px; background: #fff; box-shadow: 0 12px 28px rgb(16 42 80 / 7%); font-size: 12px; color: var(--muted); }
.flow__record span:not(.flow__label), .flow__quality span:not(.flow__label) { padding-top: 10px; border-top: 1px solid var(--line); }
.flow__label { color: var(--ink); font-size: 16px; font-weight: 760; }
.flow__quality b { display: inline-grid; place-items: center; width: 20px; height: 20px; margin-right: 7px; border-radius: 50%; color: #087c74; background: #d8f5ef; }

.chain { padding-top: 54px; padding-bottom: 74px; border-top: 1px solid var(--line); }
.chain h2, .section-heading h2, .evidence h2, .cta h2 { margin: 0; font-size: clamp(38px, 4.2vw, 68px); line-height: 1.05; letter-spacing: -.055em; }
.chain__steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; padding: 36px 0 0; margin: 0; }
.chain__steps li { position: relative; padding-right: 32px; }
.chain__steps li::before { content: ""; position: absolute; left: 54px; right: 10px; top: 24px; height: 1px; background: var(--blue); }
.chain__steps li::after { content: "→"; position: absolute; right: 0; top: 11px; color: var(--blue); font-size: 24px; }
.chain__steps li:last-child::before { background: var(--coral); }
.chain__steps li:last-child::after { color: var(--coral); }
.chain__steps a { display: grid; grid-template-columns: 50px 1fr; align-items: center; gap: 14px; position: relative; text-decoration: none; font-size: 17px; font-weight: 760; }
.chain__steps span { width: 50px; height: 50px; display: grid; place-items: center; z-index: 1; border-radius: 50%; color: var(--blue); background: var(--blue-soft); font-size: 20px; }
.chain__steps li:last-child span { color: #bc3028; background: var(--coral-soft); }

.cases { border-top: 1px solid var(--line); padding-top: 84px; }
.section-heading { display: grid; grid-template-columns: 1.35fr .65fr; align-items: end; gap: 48px; padding-bottom: 58px; }
.section-heading h2 { color: var(--ink); }
.section-heading h2::first-line { color: var(--blue); }
.section-heading p { max-width: 500px; margin: 0 0 6px; color: var(--muted); font-size: 19px; line-height: 1.55; }
.case { display: grid; grid-template-columns: 100px minmax(520px, 1.25fr) minmax(360px, .75fr); gap: clamp(26px, 4vw, 68px); align-items: center; padding: 76px 0; border-top: 1px solid var(--line); }
.case__index { align-self: start; color: #aeb6c3; font-size: 54px; font-weight: 300; letter-spacing: -.05em; }
.case__index--coral { color: var(--coral); }
.case h3 { margin: 0; font-size: clamp(34px, 3.2vw, 52px); letter-spacing: -.045em; }
.case__title-line { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.status { padding: 7px 10px; border: 1px solid #9bb7f5; border-radius: 5px; color: var(--blue); background: var(--blue-soft); font-size: 12px; font-weight: 760; letter-spacing: .03em; text-transform: uppercase; }
.status--pilot { color: #a52d25; border-color: #ffc0ba; background: var(--coral-soft); }
.case__narrative { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 34px; }
.case__narrative h4 { margin: 0 0 10px; color: var(--ink); font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
.case__narrative p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.55; }
.case__proof { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-weight: 650; }
.case__proof i { width: 4px; height: 4px; border-radius: 50%; background: var(--blue); }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 30px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metrics > div { padding: 20px 22px 20px 0; }
.metrics > div + div { padding-left: 22px; border-left: 1px solid var(--line); }
.metrics strong { display: block; color: var(--blue); font-size: 27px; letter-spacing: -.04em; }
.metrics span { display: block; margin-top: 6px; color: var(--muted); font-size: 12px; line-height: 1.35; }
.metrics--pilot strong { color: var(--coral); }
.case__visual { min-height: 330px; position: relative; padding: 28px; border-left: 1px solid var(--line); }
.case__visual--dialogue { display: grid; align-content: center; gap: 12px; }
.mini-question { width: 70%; padding: 14px 16px; border-radius: 12px; color: var(--muted); background: var(--soft); font-size: 13px; }
.mini-route { justify-self: end; width: 75%; margin-top: 12px; padding: 20px; border: 1px solid #b8ccff; border-radius: 12px; color: var(--blue-dark); background: var(--blue-soft); font-size: 14px; font-weight: 700; line-height: 1.6; }
.lead-map { display: grid; grid-template-columns: .75fr 1fr 1fr; gap: 18px; align-items: center; }
.lead-map__sources, .lead-map__result { display: grid; gap: 10px; }
.lead-map span { padding: 11px; border-radius: 7px; background: var(--soft); color: var(--muted); font-size: 12px; }
.lead-map__center { padding: 26px 16px; color: #fff; background: var(--blue); border-radius: 9px; text-align: center; font-weight: 800; }
.audit-flow { min-height: 220px; display: flex; align-items: center; justify-content: center; gap: 9px; }
.audit-flow span { min-width: 74px; padding: 13px 9px; border: 1px solid #b5c2d6; border-radius: 50%; text-align: center; font-size: 11px; }
.audit-flow span:last-child { color: #a52d25; border-color: var(--coral); }
.audit-flow b { color: var(--blue); font-size: 21px; }

.evidence { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 8vw, 130px); padding-top: 96px; padding-bottom: 96px; border-top: 1px solid var(--line); }
.evidence h2 { max-width: 700px; }
.evidence h2::first-line { color: var(--blue); }
.evidence__copy p { max-width: 650px; margin: 28px 0 0; color: var(--muted); font-size: 19px; line-height: 1.55; }
.evidence__list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.evidence__list li { display: grid; grid-template-columns: 50px 1fr; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--line); font-size: 18px; font-weight: 680; }
.evidence__list span { color: var(--blue); font-variant-numeric: tabular-nums; }

.cta { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(52px, 8vw, 130px); align-items: end; padding-top: 92px; padding-bottom: 92px; border-top: 1px solid var(--line); }
.cta h2 { max-width: 790px; }
.cta h2::first-line { color: var(--blue); }
.cta__action p { margin: 0 0 28px; color: var(--muted); font-size: 19px; line-height: 1.55; }
.footer { min-height: 90px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--blue); }

@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; }
  .hero__copy { max-width: 860px; }
  .flow { width: min(100%, 760px); justify-self: center; }
  .case { grid-template-columns: 72px 1fr; }
  .case__visual { grid-column: 2; border-left: 0; border-top: 1px solid var(--line); }
  .section-heading, .evidence, .cta { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .site-header { min-height: 72px; grid-template-columns: 1fr auto; }
  .nav { display: none; }
  .site-header > .button { padding-inline: 14px; gap: 10px; }
  .hero { min-height: 0; padding-top: 58px; }
  .hero h1 { font-size: clamp(42px, 12vw, 64px); }
  .flow { grid-template-columns: 1fr; min-height: 0; gap: 18px; background-size: 64px 64px; }
  .flow::after { left: 30px; top: 30px; bottom: 30px; width: 2px; height: auto; }
  .flow__item { margin-left: 46px; }
  .flow__arrow { display: none; }
  .chain__steps { grid-template-columns: 1fr; gap: 22px; }
  .chain__steps li::before { left: 24px; top: 50px; bottom: -22px; width: 1px; height: auto; }
  .chain__steps li::after { display: none; }
  .chain__steps li:last-child::before { display: none; }
  .case { grid-template-columns: 1fr; padding: 58px 0; }
  .case__index { font-size: 42px; }
  .case__narrative { grid-template-columns: 1fr; }
  .case__visual { grid-column: 1; min-height: 240px; padding-inline: 0; }
  .metrics { grid-template-columns: 1fr; }
  .metrics > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .lead-map { grid-template-columns: 1fr; }
  .audit-flow { flex-wrap: wrap; }
  .footer { align-items: flex-start; flex-direction: column; justify-content: center; }
}

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