/* ============================================================
   AirCheck Auto — aircheckauto.com
   Design register: a controlled regulatory instrument.
   Forest/leaf brand greens, Archivo signage type, IBM Plex Mono
   as the "record" layer, dot-leader field rows, hairline rules.
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  /* Brand greens sampled from the logo artwork */
  --forest:       #02452f;
  --forest-deep:  #012a1d;
  --forest-soft:  #0c5b3f;
  --leaf:         #3ca82a;
  --leaf-deep:    #2c7d24;   /* AA-safe green on paper */
  --leaf-bright:  #5ac93f;   /* signal green, dark surfaces only */

  /* Surfaces */
  --paper:   #faf9f4;
  --paper-2: #f1f1e7;
  --cream:   #f4f1e8;
  --white:   #fffdfa;
  --sage:    #d4e2c5;
  --foot:    #e9ede4;

  /* Text */
  --body:      #3f5f54;
  --muted:     #5c7568;
  --on-dark:   #b7ccc3;

  /* Rules */
  --rule:        rgba(2, 69, 47, 0.16);
  --rule-strong: rgba(2, 69, 47, 0.30);
  --rule-dark:   rgba(255, 255, 255, 0.17);
  --grid:        rgba(2, 69, 47, 0.055);

  --sans: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --shell: 1180px;
  --nav-h: 92px;
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--body);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.62;
  font-variation-settings: "wdth" 100;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; color: var(--forest); }
p { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }

:focus-visible {
  outline: 2px solid var(--leaf-deep);
  outline-offset: 3px;
  border-radius: 2px;
}
.ecosystem :focus-visible,
.mobile-nav :focus-visible,
.record__bar :focus-visible { outline-color: var(--leaf-bright); }

::selection { background: var(--leaf-bright); color: var(--forest-deep); }

.shell { width: min(var(--shell), 100% - 48px); margin-inline: auto; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  clip: rect(0 0 0 0); clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  padding: 12px 18px; border-radius: 4px;
  background: var(--forest); color: #fff;
  font-family: var(--mono); font-size: 12px; letter-spacing: .06em;
  transition: top .18s ease;
}
.skip-link:focus { top: 14px; }

/* ---------- 3. Type scale ---------- */
h1, h2 {
  font-weight: 600;
  font-variation-settings: "wdth" 106;
  letter-spacing: -0.032em;
  line-height: 0.98;
  text-wrap: balance;
}

h3 {
  font-size: 1.32rem;
  font-weight: 600;
  font-variation-settings: "wdth" 103;
  letter-spacing: -0.017em;
  line-height: 1.2;
}

/* The mono "record" layer — labels, serials, section marks */
.part, .eyebrow, .nav a, .strip, .record__bar, .record__seal,
.record figcaption, .field dt, .field dd, .phase__no, .link__hold,
.link__no, .monogram, .diagram__stamp, .colophon__bottom, .annot {
  font-family: var(--mono);
  font-feature-settings: "zero" 1;
}

.eyebrow {
  display: flex; align-items: center; gap: 11px;
  color: var(--leaf-deep);
  font-size: 11px; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase;
}
.eyebrow__tick {
  width: 8px; height: 8px; flex: none;
  background: var(--leaf); transform: rotate(45deg);
}

/* Section part marks: "PART 03 —— A CONTROLLED PATH TO APPROVAL" */
.part {
  display: flex; align-items: center; flex-wrap: wrap; gap: 6px 13px;
  margin-bottom: 26px;
  font-size: 11px; letter-spacing: .13em; text-transform: uppercase;
}
.part b { color: var(--leaf-deep); font-weight: 600; }
.part b::after {
  content: ""; display: inline-block; vertical-align: middle;
  width: 26px; height: 1px; margin-left: 13px;
  background: var(--rule-strong);
}
.part span { color: var(--muted); }
.section-head--dark .part b { color: var(--leaf-bright); }
.section-head--dark .part b::after { background: var(--rule-dark); }
.section-head--dark .part span { color: var(--on-dark); }
.part--onSage b { color: var(--forest); }
.part--onSage span { color: #3d5c3c; }
.part--onSage b::after { background: rgba(2, 69, 47, .34); }

/* ---------- 4. Buttons & links ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 16px;
  padding: 16px 22px; border-radius: 4px;
  background: var(--forest); color: #fff;
  font-size: 14.5px; font-weight: 600; letter-spacing: -0.005em;
  box-shadow: 0 10px 24px -12px rgba(2, 69, 47, .55);
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn:hover { background: var(--forest-soft); transform: translateY(-2px); box-shadow: 0 16px 30px -14px rgba(2, 69, 47, .6); }
.btn:active { transform: translateY(0); }
.btn__arrow { transition: transform .2s ease; }
.btn:hover .btn__arrow { transform: translateX(4px); }
.btn--sm { padding: 11px 16px; font-size: 13.5px; gap: 10px; box-shadow: none; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 9px;
  padding-bottom: 4px;
  font-size: 14.5px; font-weight: 600;
  color: var(--forest);
  border-bottom: 1px solid var(--rule-strong);
  transition: border-color .2s ease, color .2s ease;
}
.link-arrow:hover { color: var(--leaf-deep); border-color: var(--leaf); }

/* ---------- 5. Masthead ---------- */
.masthead {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 249, 244, .88);
  border-bottom: 1px solid var(--rule);
  backdrop-filter: saturate(150%) blur(10px);
  -webkit-backdrop-filter: saturate(150%) blur(10px);
  transition: box-shadow .25s ease, background .25s ease;
}
.masthead.is-scrolled { background: rgba(250, 249, 244, .96); box-shadow: 0 10px 26px -22px rgba(2, 69, 47, .8); }
.masthead__inner { height: var(--nav-h); display: flex; align-items: center; gap: 28px; }

.brand { display: inline-flex; align-items: center; }
.brand img { height: 36px; width: auto; }

.nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.nav a {
  position: relative;
  font-size: 11.5px; font-weight: 500;
  letter-spacing: .105em; text-transform: uppercase;
  color: var(--forest); padding-block: 6px;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--leaf);
  transform: scaleX(0); transform-origin: left;
  transition: transform .25s ease;
}
.nav a:hover::after, .nav a:focus-visible::after { transform: scaleX(1); }

.menu-toggle {
  display: none; margin-left: auto;
  width: 46px; height: 40px; padding: 0;
  background: none; border: 1px solid var(--rule-strong); border-radius: 4px;
  cursor: pointer;
}
.menu-toggle span {
  display: block; width: 20px; height: 1.5px; margin: 4px auto;
  background: var(--forest);
  transition: transform .28s ease, opacity .28s ease;
}
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-2.5px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; z-index: 45;
  display: flex; flex-direction: column; justify-content: center; gap: 34px;
  padding: 96px 34px 48px;
  background: var(--forest);
  transform: translateY(-101%);
  transition: transform .42s cubic-bezier(.4, 0, .2, 1);
}
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav nav { display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a:not(.btn) {
  display: flex; align-items: baseline; gap: 16px;
  padding: 16px 0; border-bottom: 1px solid var(--rule-dark);
  color: #fff; font-size: 26px; font-weight: 600;
  font-variation-settings: "wdth" 104; letter-spacing: -0.02em;
}
.mobile-nav a span {
  font-family: var(--mono); font-size: 11px; letter-spacing: .1em;
  color: var(--leaf-bright);
}
.mobile-nav .btn { align-self: flex-start; background: var(--leaf-bright); color: var(--forest-deep); }
.mobile-nav .btn:hover { background: #6ddb51; }

/* ---------- 6. Hero ---------- */
.hero { position: relative; overflow: hidden; padding-block: 62px 92px; }
/* plotting grid, faded at the edges — the same instrument language as the
   record card and the device panel */
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 46px 46px;
  background-position: center;
  -webkit-mask-image: radial-gradient(115% 82% at 62% 34%, #000 8%, transparent 74%);
  mask-image: radial-gradient(115% 82% at 62% 34%, #000 8%, transparent 74%);
}
/* the miles, barely there, along the bottom edge */
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 46%;
  pointer-events: none;
  background: url("/assets/img-interchange.jpg") center bottom / cover no-repeat;
  opacity: .07;
  -webkit-mask-image: linear-gradient(to top, #000, transparent 86%);
  mask-image: linear-gradient(to top, #000, transparent 86%);
}
.hero__inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.16fr .84fr;
  gap: 64px; align-items: center;
}
.hero__title {
  margin: 26px 0 0;
  font-size: clamp(44px, 5.9vw, 82px);
  line-height: .94;
  font-variation-settings: "wdth" 108;
  letter-spacing: -0.038em;
  text-wrap: nowrap;
}
.hero__title em {
  font-style: normal; color: var(--leaf-deep);
  box-shadow: inset 0 -0.085em 0 rgba(60, 168, 42, .34);
}
.hero__lede {
  max-width: 33em; margin: 26px 0 28px;
  font-size: 18.5px; line-height: 1.6;
}
.hero__actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px 30px; }

/* --- Mission: the odometer reading we are trying to move --- */
.mission {
  margin: 0 0 30px;
  padding: 19px 22px 20px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--leaf);
  border-radius: 4px;
  background: rgba(2, 69, 47, .028);
  max-width: 40em;
}
.mission__head { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; }
.mission__label, .mission__unit {
  font-family: var(--mono);
  font-size: 10px; letter-spacing: .15em; text-transform: uppercase;
}
.mission__label { color: var(--muted); }
.mission__unit { color: var(--leaf-deep); }
.odometer { display: inline-flex; gap: 2px; }
.odometer b {
  width: 21px; height: 30px;
  display: grid; place-items: center;
  border-radius: 2px;
  background: var(--forest); color: #fff;
  font-family: var(--mono); font-size: 15px; font-weight: 500;
  box-shadow:
    inset 0 -7px 10px -6px rgba(0, 0, 0, .6),
    inset 0 7px 9px -6px rgba(255, 255, 255, .18);
}
.mission__copy { margin-top: 13px; font-size: 14.5px; line-height: 1.56; color: var(--muted); }
.mission__copy b { color: var(--forest); font-weight: 600; }

.trustline {
  display: flex; flex-wrap: wrap; gap: 10px 26px;
  margin-top: 34px; padding-top: 22px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .085em; text-transform: uppercase;
  color: var(--muted);
}
.trustline li { display: flex; align-items: center; gap: 8px; }
.trustline li::before {
  content: ""; width: 6px; height: 6px; flex: none;
  background: var(--leaf); transform: rotate(45deg);
}

/* --- The record card (hero visual) --- */
.hero__visual { position: relative; }
.record {
  position: relative; margin: 0;
  background: var(--white);
  border: 1px solid var(--rule-strong);
  border-radius: 6px;
  box-shadow: 0 40px 70px -40px rgba(2, 69, 47, .5);
  transform: rotate(-0.9deg);
}
/* the file copy sitting underneath */
.record::before {
  content: ""; position: absolute; z-index: -1;
  inset: 16px -16px -16px 16px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: rgba(2, 69, 47, .025);
}
.record__bar {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 13px 20px; border-radius: 5px 5px 0 0;
  background: var(--forest); color: #cfe1d8;
  font-size: 10px; letter-spacing: .13em; text-transform: uppercase;
}
.status { display: inline-flex; align-items: center; gap: 8px; color: var(--leaf-bright); }
.status i {
  width: 7px; height: 7px; border-radius: 50%; background: var(--leaf-bright);
  animation: pulse 2.6s ease-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(90, 201, 63, .6); }
  70%  { box-shadow: 0 0 0 9px rgba(90, 201, 63, 0); }
  100% { box-shadow: 0 0 0 0 rgba(90, 201, 63, 0); }
}

.record__stage {
  position: relative; padding: 26px 20px 18px;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: center;
  border-bottom: 1px solid var(--rule);
}
.record__device {
  width: min(74%, 300px); margin: 0 auto;
  filter: drop-shadow(0 20px 26px rgba(2, 69, 47, .22));
}
.record__seal {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 14px;
  font-size: 10px; letter-spacing: .085em; text-transform: uppercase;
  color: var(--muted);
}
.record__seal span { color: var(--leaf); font-size: 8px; }

.record__fields { padding: 6px 20px 4px; }
.record__foot {
  display: flex; align-items: center; gap: 14px;
  margin: 14px 20px 0; padding: 14px 16px;
  border-radius: 4px; background: rgba(2, 69, 47, .055);
}
.record__foot .tick {
  width: 30px; height: 30px; flex: none;
  display: grid; place-items: center; border-radius: 50%;
  background: var(--leaf-bright); color: var(--forest-deep);
  font-size: 14px; font-weight: 700;
}
.record__foot-copy { display: flex; flex-direction: column; gap: 3px; }
.record__foot-copy b { font-size: 13.5px; font-weight: 600; color: var(--forest); }
.record__foot-copy small { font-size: 12px; color: var(--muted); }
.record figcaption {
  padding: 13px 20px 16px;
  font-size: 9.5px; line-height: 1.5; letter-spacing: .06em;
  text-transform: uppercase; color: #7c9086;
}

/* --- Dot-leader field rows (used site-wide) --- */
.field {
  display: flex; align-items: baseline; gap: 10px;
  padding: 9px 0; border-bottom: 1px solid var(--rule);
}
.field:last-child { border-bottom: 0; }
.field dt {
  flex: 1; display: flex; align-items: baseline; gap: 10px;
  font-size: 10.5px; letter-spacing: .09em; text-transform: uppercase;
  color: var(--muted); white-space: nowrap;
}
.field dt::after {
  content: ""; flex: 1 1 auto; align-self: flex-end;
  height: 1px; margin-bottom: 4px;
  background-image: linear-gradient(to right, var(--rule-strong) 1px, transparent 1px);
  background-size: 5px 1px; background-repeat: repeat-x;
}
.field dd {
  flex: none; font-size: 12px; font-weight: 500;
  color: var(--forest); text-align: right; white-space: nowrap;
}

/* ---------- 7. Benefit strip ---------- */
.strip {
  overflow: hidden;
  border-block: 1px solid var(--rule);
  background: var(--paper-2);
}
.strip__track { display: flex; width: max-content; animation: marquee 42s linear infinite; }
.strip:hover .strip__track, .strip:focus-within .strip__track { animation-play-state: paused; }
.strip__set { display: flex; }
.strip__set span {
  display: flex; align-items: center; gap: 26px;
  padding: 17px 0; margin-right: 26px;
  font-size: 10.5px; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--leaf-deep); white-space: nowrap;
}
.strip__set span::after {
  content: "\25C6"; font-size: 8px; color: var(--leaf); opacity: .8;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 8. 01 Opportunity ---------- */
.opportunity { padding-block: 128px 96px; }

/* --- Full-bleed duotone band --- */
.band {
  position: relative; margin: 0; overflow: hidden;
  border-block: 1px solid var(--rule);
  background: var(--forest-deep);
}
.band img {
  width: 100%; height: clamp(210px, 25vw, 330px);
  object-fit: cover; object-position: center;
}
/* hairline plotting grid + edge falloff, so the photo reads art-directed */
.band::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(2, 52, 31, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(2, 52, 31, .16) 1px, transparent 1px),
    linear-gradient(to top, rgba(1, 42, 29, .78), rgba(1, 42, 29, .05) 46%);
  background-size: 46px 46px, 46px 46px, 100% 100%;
}
.band figcaption {
  position: absolute; z-index: 2; left: 0; right: 0; bottom: 22px;
  width: min(var(--shell), 100% - 48px); margin-inline: auto;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .085em; text-transform: uppercase;
  color: #dfeada;
}
.band figcaption span { color: var(--leaf-bright); font-size: 8px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 88px; }
.split__lede h2 { font-size: clamp(34px, 4.5vw, 60px); }
.split__body { padding-top: 40px; }
.split__body p { max-width: 30em; margin-bottom: 26px; font-size: 17.5px; }
.pull {
  margin-bottom: 0 !important;
  padding: 4px 0 4px 24px;
  border-left: 3px solid var(--leaf);
  color: var(--forest);
  font-size: 21px; font-weight: 500; line-height: 1.42;
  font-variation-settings: "wdth" 102; letter-spacing: -0.015em;
}

/* ---------- 9. Shared section heads ---------- */
.section-head { max-width: 780px; }
.section-head h2 { font-size: clamp(34px, 4.5vw, 60px); }
.section-head__lede { max-width: 34em; margin-top: 24px; font-size: 17px; color: var(--muted); }

/* ---------- 10. 02 Public value ---------- */
.outcomes { padding-block: 126px; background: var(--white); }
.grid-4 {
  display: grid; grid-template-columns: repeat(4, 1fr);
  margin-top: 66px;
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
}
.outcome-grid li {
  display: flex; flex-direction: column;
  min-height: 302px; padding: 32px 28px 34px;
  border-right: 1px solid var(--rule);
  transition: background .25s ease;
}
.outcome-grid li:last-child { border-right: 0; }
.outcome-grid li:hover { background: rgba(2, 69, 47, .028); }
.outcome-grid .num {
  font-family: var(--mono); font-size: 11px; font-weight: 500;
  letter-spacing: .12em; color: var(--leaf-deep);
}
.outcome-grid h3 { margin: 74px 0 12px; }
.outcome-grid p { font-size: 14.5px; line-height: 1.62; color: var(--muted); }

/* ---------- 11. 03 Pilot model ---------- */
.pilot { padding-block: 126px; background: var(--cream); }
.phases {
  display: grid; grid-template-columns: repeat(3, 1fr);
  margin-top: 66px;
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
}
.phase {
  display: flex; flex-direction: column;
  padding: 42px 36px 40px;
  border-right: 1px solid var(--rule);
}
.phase:last-child { border-right: 0; }
.phase__no {
  display: flex; align-items: center; gap: 9px;
  margin-bottom: 58px;
  font-size: 10.5px; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase; color: var(--muted);
}
.phase__no span { color: var(--leaf); font-size: 8px; }
.phase h3 { margin-bottom: 12px; }
.phase > p { font-size: 15px; line-height: 1.62; color: var(--muted); }
.gates { margin-top: auto; padding-top: 30px; }
.gates .field { padding: 7px 0; }
.gates .field:last-child { border-bottom: 0; }

/* ---------- 12. 04 Integrity ---------- */
.integrity { padding-block: 132px; border-bottom: 1px solid var(--rule); }
.split--wide { grid-template-columns: .94fr 1.06fr; gap: 76px; align-items: center; }

.diagram {
  position: relative; margin: 0;
  min-height: 580px; padding: 54px 34px 64px;
  display: flex; flex-direction: column; justify-content: center;
  border-radius: 8px; overflow: hidden;
  background:
    radial-gradient(120% 90% at 50% 40%, rgba(90, 201, 63, .16), transparent 62%),
    linear-gradient(168deg, #0a4e36, var(--forest-deep));
}
.diagram::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 35%, transparent 78%);
  mask-image: radial-gradient(circle at 50% 45%, #000 35%, transparent 78%);
}
.diagram__device {
  position: relative;
  width: min(52%, 244px); margin: 30px auto 34px;
  filter: drop-shadow(0 30px 40px rgba(0, 0, 0, .5));
}

.annot {
  position: absolute;
  display: flex; flex-direction: column; gap: 3px;
  font-size: 10px; letter-spacing: .05em; line-height: 1.45;
}
.annot b {
  font-weight: 600; letter-spacing: .09em; text-transform: uppercase;
  color: var(--leaf-bright);
}
.annot span { color: var(--on-dark); text-transform: none; letter-spacing: .02em; }
.annot::after {
  content: ""; position: absolute; height: 1px; width: 46px;
  background: linear-gradient(to right, var(--leaf-bright), rgba(90, 201, 63, .1));
}
.annot { max-width: 168px; }
.annot--a { top: 7%; left: 7%; }
.annot--a::after { top: -12px; left: 0; }
.annot--b { top: 7%; right: 7%; text-align: right; align-items: flex-end; }
.annot--b::after { top: -12px; right: 0; background: linear-gradient(to left, var(--leaf-bright), rgba(90, 201, 63, .1)); }
.annot--c { bottom: 17%; left: 7%; }
.annot--c::after { top: -12px; left: 0; }

.diagram__stamp {
  position: absolute; right: 26px; bottom: 24px;
  padding: 9px 13px; border: 1px solid rgba(90, 201, 63, .45); border-radius: 3px;
  color: var(--leaf-bright); opacity: .85;
  font-size: 9px; letter-spacing: .16em; text-transform: uppercase;
  transform: rotate(-3deg);
}

.integrity__copy h2 { font-size: clamp(34px, 4.3vw, 56px); }
.integrity__copy > p:not(.part) { margin: 24px 0 34px; max-width: 36em; font-size: 17px; }
.controls { border-top: 1px solid var(--rule); }
.field--stack {
  display: grid; grid-template-columns: 185px 1fr; gap: 6px 22px;
  align-items: start; padding: 19px 0;
  border-bottom: 1px solid var(--rule);
}
.field--stack:last-child { border-bottom: 1px solid var(--rule); }
.field--stack dt {
  display: block; font-family: var(--sans);
  font-size: 13.5px; font-weight: 600; letter-spacing: 0;
  text-transform: none; color: var(--forest); white-space: normal;
}
.field--stack dt::after { display: none; }
.field--stack dd {
  font-family: var(--sans); font-size: 14px; font-weight: 400;
  line-height: 1.55; color: var(--muted);
  text-align: left; white-space: normal;
}

/* ---------- 13. 05 Ecosystem ---------- */
.ecosystem { position: relative; overflow: hidden; padding-block: 118px; background: var(--forest); }
.ecosystem::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: url("/assets/img-highway.jpg") center 70% / cover no-repeat;
  opacity: .085;
  -webkit-mask-image: linear-gradient(to top, #000, transparent 72%);
  mask-image: linear-gradient(to top, #000, transparent 72%);
}
.ecosystem > .shell { position: relative; z-index: 1; }
.ecosystem h2, .ecosystem h3 { color: #fff; }
.parties { border-color: var(--rule-dark); }
.parties li {
  padding: 34px 28px 34px 0; margin-right: 28px;
  border-right: 1px solid var(--rule-dark);
}
.parties li:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.monogram {
  display: inline-grid; place-items: center;
  width: 46px; height: 46px; margin-bottom: 54px;
  border: 1px solid rgba(90, 201, 63, .5); border-radius: 3px;
  color: var(--leaf-bright);
  font-size: 13px; font-weight: 600; letter-spacing: .08em;
}
.parties h3 { margin-bottom: 12px; font-size: 1.28rem; }
.parties p { font-size: 14.5px; line-height: 1.62; color: var(--on-dark); }

/* ---------- 14. 06 Operating model (custody chain) ---------- */
.model { padding-block: 128px; }
.chain {
  position: relative;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-top: 68px;
}
.chain::before {
  content: ""; position: absolute; top: 15px; left: 0; right: 0; height: 1px;
  background: var(--rule-strong);
  transform: scaleX(0); transform-origin: left;
  transition: transform 1.2s cubic-bezier(.22, .61, .36, 1);
}
.chain.is-drawn::before { transform: scaleX(1); }
.link {
  position: relative;
  padding: 54px 14px 6px 22px;
  border-left: 1px solid var(--rule);
}
.link__no {
  position: absolute; top: 0; left: -15px;
  width: 31px; height: 31px;
  display: grid; place-items: center; border-radius: 50%;
  background: var(--paper); border: 1px solid var(--rule-strong);
  color: var(--forest); font-size: 12px; font-weight: 500;
  transition: border-color .3s ease, color .3s ease, background .3s ease;
}
.chain.is-drawn .link__no { border-color: var(--leaf); }
.link:hover .link__no { background: var(--leaf-bright); border-color: var(--leaf-bright); color: var(--forest-deep); }
.link__hold {
  display: flex; align-items: flex-start; gap: 8px;
  min-height: 2.7em; margin-bottom: 12px;
  font-size: 9.5px; font-weight: 500; line-height: 1.35;
  letter-spacing: .1em; text-transform: uppercase; color: var(--leaf-deep);
}
.link__hold::before {
  content: ""; width: 6px; height: 6px; flex: none;
  margin-top: .35em; background: var(--leaf); transform: rotate(45deg);
}
.link h3 { margin-bottom: 11px; font-size: 1.22rem; }
.link > p { font-size: 14.5px; line-height: 1.6; color: var(--muted); }

/* ---------- 15. CTA ---------- */
.cta { position: relative; overflow: hidden; padding-block: 104px; background: var(--sage); }
.cta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: url("/assets/img-road.jpg") center 26% / cover no-repeat;
  opacity: .11;
  -webkit-mask-image: linear-gradient(to bottom, transparent 6%, #000 68%);
  mask-image: linear-gradient(to bottom, transparent 6%, #000 68%);
}
.cta__inner { position: relative; z-index: 1; }
.cta__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 88px; }
.cta h2 { font-size: clamp(34px, 4.4vw, 58px); }
.cta__body p { max-width: 32em; color: #2f4a34; font-size: 17px; }
.cta__body p + p { margin-top: 32px; }
.cta__note { margin-top: 18px !important; font-size: 12.5px; line-height: 1.55; color: #3a5539; }
.cta .btn { background: var(--forest); box-shadow: none; }
.cta .btn:hover { background: var(--forest-deep); }

/* ---------- 16. FAQ ---------- */
.faq { padding-block: 126px; }
.faq__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0 80px;
  margin-top: 56px; border-top: 1px solid var(--rule);
}
.faq article { padding: 30px 0 32px; border-bottom: 1px solid var(--rule); }
.faq h3 { margin-bottom: 11px; font-size: 1.2rem; }
.faq p { font-size: 15px; line-height: 1.65; color: var(--muted); }

/* ---------- 17. Footer ---------- */
.colophon { padding-top: 72px; background: var(--foot); border-top: 1px solid var(--rule); }
.colophon__top {
  display: grid; grid-template-columns: auto 1fr auto;
  gap: 54px; align-items: center; padding-bottom: 64px;
}
.colophon__top .brand img { height: 48px; }
.colophon__line {
  max-width: 30em; color: var(--forest);
  font-size: 19px; font-weight: 500; line-height: 1.45;
  font-variation-settings: "wdth" 102; letter-spacing: -0.014em;
}
.colophon__mail {
  font-size: 15px; font-weight: 600; color: var(--forest);
  border-bottom: 1px solid var(--leaf); padding-bottom: 3px;
  transition: color .2s ease;
}
.colophon__mail:hover { color: var(--leaf-deep); }
.colophon__bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px 30px;
  padding-block: 22px; border-top: 1px solid var(--rule);
  font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted);
}
.colophon__bottom a {
  color: var(--forest);
  border-bottom: 1px solid var(--leaf); padding-bottom: 2px;
  transition: color .2s ease;
}
.colophon__bottom a:hover { color: var(--leaf-deep); }

/* ---------- 18. Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.is-in {
  opacity: 1; transform: none;
  transition:
    opacity .75s ease var(--reveal-delay, 0ms),
    transform .75s cubic-bezier(.22, .61, .36, 1) var(--reveal-delay, 0ms);
}

/* QA/screenshot hook: ?shot forces the finished state */
html.shot .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
html.shot .chain::before { transform: scaleX(1) !important; }
html.shot .strip__track { animation: none !important; }
html.shot .status i { animation: none !important; }
html.shot .hero { min-height: 0; }

/* ---------- 19. Responsive ---------- */
@media (max-width: 1080px) {
  .hero__inner { gap: 52px; }
  .split { gap: 60px; }
  .split--wide { grid-template-columns: 1fr; gap: 56px; }
  .diagram { min-height: 520px; }
  .field--stack { grid-template-columns: 165px 1fr; }
}

@media (max-width: 960px) {
  .nav { display: none; }
  .masthead__cta { display: none; }
  .menu-toggle { display: block; }

  .hero { padding-block: 56px 76px; }
  .hero__inner { grid-template-columns: 1fr; gap: 56px; }
  .hero__title { max-width: none; }
  .record { transform: none; max-width: 520px; }
  .record::before { inset: 12px -12px -12px 12px; }

  .split, .cta__inner { grid-template-columns: 1fr; gap: 42px; }
  .split__body { padding-top: 0; }

  .grid-4 { grid-template-columns: 1fr 1fr; }
  .outcome-grid li:nth-child(2) { border-right: 0; }
  .outcome-grid li:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  .parties li:nth-child(2) { border-right: 0; margin-right: 0; padding-right: 0; }
  .parties li:nth-child(-n+2) { border-bottom: 1px solid var(--rule-dark); }
  .monogram { margin-bottom: 34px; }

  .phases { grid-template-columns: 1fr; }
  .phase { border-right: 0; border-bottom: 1px solid var(--rule); }
  .phase:last-child { border-bottom: 0; }
  .phase__no { margin-bottom: 26px; }
  .gates { padding-top: 24px; }

  .chain { grid-template-columns: 1fr 1fr; row-gap: 44px; }

  /* Annotations leave the panel and become a plain list */
  .diagram { min-height: 0; padding: 44px 26px 30px; }
  .diagram__device { width: min(58%, 260px); }
  .annots { display: grid; gap: 16px; margin-top: 34px; }
  .annot { position: static; max-width: none; padding-left: 14px; border-left: 1px solid rgba(90, 201, 63, .5); }
  .annot--b { text-align: left; align-items: flex-start; }
  .annot::after { display: none; }
  .diagram__stamp { position: static; margin-top: 26px; display: inline-block; transform: none; }

  .faq__grid { gap: 0 40px; }
  .colophon__top { grid-template-columns: 1fr; gap: 26px; padding-bottom: 46px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .shell { width: min(var(--shell), 100% - 32px); }
  :root { --nav-h: 76px; }
  .brand img { height: 30px; }

  .hero__title { text-wrap: balance; }
  .mission { padding: 16px 16px 17px; }
  .odometer b { width: 18px; height: 26px; font-size: 13px; }
  .hero__lede { font-size: 17px; }
  .hero__actions { flex-direction: column; align-items: flex-start; gap: 18px; }
  .record { max-width: none; }
  .record::before { display: none; }
  .record__bar { flex-wrap: wrap; gap: 6px 14px; }
  .record__device { width: min(66%, 220px); }
  .field { flex-wrap: wrap; }

  .opportunity, .outcomes, .pilot, .integrity, .ecosystem, .model, .faq { padding-block: 78px; }
  .cta { padding-block: 76px; }
  .colophon { padding-top: 52px; }

  .grid-4 { grid-template-columns: 1fr; }
  .outcome-grid li, .outcome-grid li:nth-child(2) {
    min-height: 0; border-right: 0; border-bottom: 1px solid var(--rule);
  }
  .outcome-grid li:last-child { border-bottom: 0; }
  .outcome-grid h3 { margin-top: 40px; }
  .parties li, .parties li:nth-child(2) {
    padding: 30px 0; margin-right: 0;
    border-right: 0; border-bottom: 1px solid var(--rule-dark);
  }
  .parties li:last-child { border-bottom: 0; }

  .phase { padding: 34px 0 32px; }
  .chain { grid-template-columns: 1fr; row-gap: 38px; }
  .chain::before { display: none; }
  .link { padding-top: 48px; }

  .field--stack { grid-template-columns: 1fr; gap: 5px; }
  .faq__grid { grid-template-columns: 1fr; }
  .colophon__bottom { flex-direction: column; gap: 8px; }
}

/* ---------- 20. Motion & print ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
  .strip__track { animation: none; }
  .chain::before { transform: scaleX(1); }
}

@media print {
  .masthead, .mobile-nav, .strip, .skip-link { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .js .reveal { opacity: 1 !important; transform: none !important; }
  section { break-inside: avoid; padding-block: 24pt !important; }
}