:root {
  --titanium-white: #F2F4F5;
  --pale-aluminum: #E5E9EC;
  --bright-surface: #FAFBFB;
  --graphite: #171B1E;
  --gunmetal: #3E474D;
  --steel-blue: #315A73;
  --steel-blue-deep: #24485F;
  --border-silver: #C5CDD2;
  --deep-stage: #151A1E;
  --deep-stage-2: #0F1518;
  --pale-text: #DDE4E8;
  --muted-light: #65737B;
  --muted-dark: #AAB6BC;
  --shell-max: 1280px;
  --gutter: 48px;
  --display-font: Bahnschrift, "Segoe UI Variable", "Segoe UI", sans-serif;
  --body-font: "Segoe UI Variable", "Segoe UI", sans-serif;
  --technical-font: Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { background: #DDE3E6; scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: clip; background: #DDE3E6; color: var(--graphite); font-family: var(--body-font); font-size: 16px; line-height: 1.58; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button, summary { font: inherit; }
::selection { color: #fff; background: var(--steel-blue); }

.page-shell { width: 100%; max-width: var(--shell-max); margin-inline: auto; overflow: clip; background: var(--bright-surface); box-shadow: 0 0 0 1px rgba(23,27,30,.04); }
.content-frame { width: calc(100% - (var(--gutter) * 2)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 110; top: 12px; left: 12px; transform: translateY(-170%); padding: 10px 14px; background: var(--graphite); color: #fff; font-weight: 700; text-decoration: none; }
.skip-link:focus { transform: translateY(0); outline: 3px solid #fff; outline-offset: 3px; }

.site-header { min-height: 96px; position: relative; z-index: 20; display: grid; grid-template-columns: minmax(0,1fr) auto minmax(0,1fr); align-items: center; gap: 24px; padding-inline: var(--gutter); background: var(--bright-surface); border-bottom: 1px solid var(--border-silver); }
.brand { display: inline-flex; width: max-content; min-height: 44px; align-items: center; gap: 13px; color: var(--graphite); text-decoration: none; }
.brand-mark { width: 32px; height: 32px; flex: none; }
.brand-name { font-family: var(--technical-font); font-size: 18px; font-weight: 700; letter-spacing: .15em; white-space: nowrap; }
.desktop-nav { display: flex; align-items: stretch; align-self: stretch; }
.desktop-nav a { display: inline-flex; min-height: 96px; align-items: center; position: relative; padding: 0 13px; color: #202B31; font-size: 14px; font-weight: 700; text-decoration: none; white-space: nowrap; }
.desktop-nav a::after { position: absolute; right: 13px; bottom: 0; left: 13px; height: 2px; background: transparent; content: ""; }
.desktop-nav a:hover::after, .desktop-nav a.active::after { background: var(--steel-blue); }
.header-action { justify-self: end; }
.cut-action { display: inline-flex; min-height: 48px; align-items: center; justify-content: space-between; gap: 30px; padding: 12px 18px 12px 20px; background: var(--graphite); border-left: 4px solid var(--steel-blue); color: #fff; clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%); font-size: 14px; font-weight: 800; line-height: 1.2; text-decoration: none; transition: background .18s ease, border-color .18s ease; }
.cut-action:hover { background: #26333A; border-left-color: #6F9BB5; }
.cut-action.primary { min-height: 52px; }
.cut-action b, .text-action b { color: #9FC6DC; font-size: 18px; font-weight: 400; }
.text-action { display: inline-flex; min-height: 48px; align-items: center; gap: 25px; border-bottom: 1px solid #87959C; color: var(--graphite); font-size: 15px; font-weight: 800; line-height: 1.2; text-decoration: none; }
.text-action:hover { border-bottom-color: var(--steel-blue); color: var(--steel-blue-deep); }
.text-action.inverse { border-bottom-color: rgba(197,205,210,.55); color: #fff; }
.text-action.inverse:hover { border-bottom-color: #9FC6DC; color: #CFE8F4; }
.mobile-menu { display: none; }
.mobile-navigation { position: fixed; z-index: 90; inset: 0; overflow-y: auto; padding: 118px 22px 34px; background: var(--titanium-white); color: var(--graphite); }
.mobile-navigation[hidden] { display: none; }
.mobile-navigation a { display: flex; min-height: 52px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border-silver); color: var(--graphite); font-size: 17px; font-weight: 700; text-decoration: none; }
.mobile-navigation a[aria-current="page"] { color: var(--steel-blue-deep); }
.mobile-navigation .mobile-navigation-action { min-height: 54px; margin-top: 30px; padding: 0 17px; border-bottom: 0; background: var(--graphite); color: #fff; clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%); }
html.mobile-navigation-open { overflow: hidden; }
body.mobile-navigation-open { position: fixed; width: 100%; overflow: hidden; }

.eyebrow, .section-kicker { display: flex; align-items: center; gap: 12px; margin: 0; color: #9FC6DC; font-family: var(--technical-font); font-size: 12px; font-weight: 700; letter-spacing: .105em; line-height: 1.2; }
.eyebrow i { display: block; width: 34px; height: 2px; background: #8FBAD2; }
.section-kicker { color: var(--steel-blue-deep); }
.section-index { display: flex; align-items: baseline; gap: 12px; color: var(--steel-blue-deep); }
.section-index span { font-family: var(--technical-font); font-size: 14px; }
.section-index p { margin: 0; font-family: var(--technical-font); font-size: 12px; font-weight: 700; letter-spacing: .09em; }
.section-index.light { color: #9FC6DC; }
.section-heading { display: grid; grid-template-columns: 20% minmax(0,1fr) minmax(220px,.59fr); align-items: start; gap: 28px; }
.section-heading h2 { margin: 0; font-family: var(--display-font); font-size: clamp(34px,3.2vw,49px); font-weight: 760; letter-spacing: -.052em; line-height: 1.04; }
h1 em, h2 em, h3 em { color: var(--gunmetal); font-style: normal; font-weight: 470; }
.section-heading > p { margin: 6px 0 0; color: #58666D; font-size: 16px; line-height: 1.65; }
.section-heading.dark h2 { color: #fff; }
.section-heading.dark h2 em { color: #C9D5D9; }
.section-heading.dark > p { color: #BEC9CD; }

.oem-hero { display: grid; grid-template-columns: 47% 53%; color: #fff; }
.hero-copy { display: flex; min-height: 718px; flex-direction: column; padding: 84px 46px 58px var(--gutter); background: var(--graphite); }
.hero-copy h1 { max-width: 495px; margin: 23px 0 27px; color: #fff; font-family: var(--display-font); font-size: clamp(44px,4.25vw,62px); font-weight: 800; letter-spacing: -.06em; line-height: .99; }
.hero-copy h1 em { color: #C9D5D9; }
.hero-copy .body-lead { max-width: 488px; margin: 0; color: #C7D2D7; font-size: 17px; line-height: 1.68; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 23px; margin-top: auto; padding-top: 38px; }
.hero-scope { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin: 29px 0 0; padding: 17px 0; border-top: 1px solid rgba(197,205,210,.32); border-bottom: 1px solid rgba(197,205,210,.22); color: #C2CFD4; font-size: 13px; line-height: 1.4; }
.hero-scope span { margin-right: 12px; color: #9FC6DC; font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.hero-scope strong { color: #E1E9EC; font-weight: 650; }
.hero-scope i { color: #87B6CF; font-style: normal; }

.hero-stage { min-height: 718px; position: relative; overflow: hidden; padding: 39px 44px; background: radial-gradient(ellipse 60% 46% at 50% 53%, rgba(49,90,115,.22), rgba(229,233,236,0) 70%), linear-gradient(145deg, #EDF0F2 0%, #E0E5E8 57%, #D5DDE1 100%); color: var(--graphite); }
.hero-stage::after { position: absolute; z-index: 0; right: -42px; bottom: -56px; width: 308px; height: 308px; border: 1px solid rgba(49,90,115,.16); border-radius: 50%; box-shadow: 0 0 0 32px rgba(49,90,115,.035), 0 0 0 64px rgba(49,90,115,.025); content: ""; }
.stage-topline, .board-topline { position: relative; z-index: 3; display: flex; align-items: center; gap: 12px; color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .1em; }
.stage-topline i, .board-topline i { display: block; height: 1px; flex: 1; background: rgba(49,90,115,.32); }
.stage-grid { position: absolute; z-index: 0; inset: 108px 44px 166px; display: grid; grid-template-columns: repeat(2,1fr); grid-template-rows: repeat(2,1fr); border-top: 1px solid rgba(49,90,115,.12); border-left: 1px solid rgba(49,90,115,.12); transform: skewY(-6deg); }
.stage-grid span { border-right: 1px solid rgba(49,90,115,.12); border-bottom: 1px solid rgba(49,90,115,.12); }
.hero-product { position: absolute; z-index: 2; top: 91px; right: 59px; bottom: 133px; left: 59px; width: calc(100% - 118px); height: calc(100% - 224px); object-fit: contain; filter: drop-shadow(0 24px 19px rgba(11,20,24,.27)); }
.product-caption { position: absolute; z-index: 3; right: 44px; bottom: 111px; display: grid; gap: 4px; text-align: right; }
.product-caption span { color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .1em; }
.product-caption strong { color: var(--graphite); font-size: 15px; letter-spacing: .03em; }
.product-caption small { max-width: 170px; justify-self: end; color: #55646B; font-size: 12px; line-height: 1.35; }
.stage-path { position: absolute; z-index: 3; right: 44px; bottom: 33px; left: 44px; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); margin: 0; padding: 17px 0 0; border-top: 1px solid rgba(49,90,115,.32); list-style: none; }
.stage-path li { min-height: 58px; position: relative; padding: 0 12px 0 29px; }
.stage-path li:not(:last-child) { border-right: 1px solid rgba(49,90,115,.18); }
.stage-path li:not(:last-child)::after { position: absolute; top: 17px; right: -9px; color: var(--steel-blue); content: "→"; }
.stage-path span { position: absolute; top: 1px; left: 0; color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 11px; }
.stage-path strong { display: block; color: #263239; font-size: 13px; line-height: 1.35; }

.standard-section, .direction-section, .workflow-section, .responsibility-section, .intake-section { padding: 102px 0; background: var(--bright-surface); }
.standard-section { background: var(--titanium-white); }
.standard-heading { padding-bottom: 54px; }
.signal-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-top: 1px solid var(--border-silver); }
.signal-grid article { min-height: 271px; padding: 29px 24px 28px 0; border-right: 1px solid var(--border-silver); }
.signal-grid article + article { padding-left: 24px; }
.signal-grid article:last-child { border-right: 0; }
.signal-grid span { color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 12px; font-weight: 700; }
.signal-grid h3 { max-width: 248px; margin: 20px 0 12px; font-family: var(--display-font); font-size: 25px; letter-spacing: -.035em; line-height: 1.12; }
.signal-grid p { max-width: 290px; margin: 0; color: #526169; font-size: 16px; line-height: 1.58; }
.section-note { max-width: 670px; margin: 31px 0 0 auto; padding-left: 18px; border-left: 2px solid var(--steel-blue); color: #536168; font-size: 15px; line-height: 1.55; }

.layers-section { padding: 102px 0; background: var(--deep-stage); color: #fff; }
.decision-layers { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0; margin: 64px 0 0; padding: 0; border-top: 1px solid rgba(197,205,210,.36); border-left: 1px solid rgba(197,205,210,.24); list-style: none; }
.decision-layers li { display: grid; grid-template-columns: 39px minmax(0,1fr) 30px; gap: 18px; min-height: 234px; padding: 31px 27px; border-right: 1px solid rgba(197,205,210,.24); border-bottom: 1px solid rgba(197,205,210,.24); }
.decision-layers li:nth-child(2), .decision-layers li:nth-child(3) { background: rgba(177,198,208,.045); }
.decision-layers > li > span { color: #9FC6DC; font-family: var(--technical-font); font-size: 12px; }
.decision-layers small { color: #9FC6DC; font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.decision-layers h3 { max-width: 400px; margin: 16px 0 10px; color: #fff; font-family: var(--display-font); font-size: 25px; letter-spacing: -.04em; line-height: 1.12; }
.decision-layers p { max-width: 430px; margin: 0; color: #C0CCD0; font-size: 16px; line-height: 1.58; }
.decision-layers b { align-self: center; color: #9FC6DC; font-size: 21px; font-weight: 400; }

.direction-panels { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0; margin-top: 63px; border-top: 1px solid var(--border-silver); border-left: 1px solid var(--border-silver); }
.direction-panel { min-height: 476px; padding: 34px 38px; border-right: 1px solid var(--border-silver); border-bottom: 1px solid var(--border-silver); }
.direction-panel.odm-panel { background: #E8EDF0; }
.direction-panel header { display: flex; align-items: baseline; gap: 13px; padding-bottom: 23px; border-bottom: 1px solid var(--border-silver); }
.direction-panel header span { color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 14px; }
.direction-panel header small { color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.direction-panel h3 { max-width: 430px; margin: 30px 0 16px; font-family: var(--display-font); font-size: 35px; letter-spacing: -.05em; line-height: 1.03; }
.direction-panel h3 em { color: #58656B; }
.direction-panel p { max-width: 470px; margin: 0; color: #4E5B62; font-size: 16px; line-height: 1.63; }
.direction-panel ul { display: grid; gap: 11px; margin: 25px 0 0; padding: 0; list-style: none; }
.direction-panel li { position: relative; padding-left: 19px; color: #3F4C52; font-size: 15px; line-height: 1.47; }
.direction-panel li::before { position: absolute; top: .62em; left: 0; width: 7px; height: 1px; background: var(--steel-blue); content: ""; }
.direction-disclaimer { max-width: 740px; margin: 28px 0 0 auto; color: #5C6A70; font-size: 14px; line-height: 1.55; }

.workflow-section { background: #F7F9FA; }
.workflow-rail { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); position: relative; margin: 62px 0 0; padding: 34px 0 0; list-style: none; }
.workflow-rail::before { position: absolute; top: 34px; right: 0; left: 0; height: 1px; background: var(--border-silver); content: ""; }
.workflow-rail li { min-height: 256px; position: relative; padding: 38px 25px 0 0; }
.workflow-rail li:not(:last-child) { border-right: 1px solid var(--border-silver); }
.workflow-rail li + li { padding-left: 25px; }
.workflow-rail li::before { position: absolute; top: 28px; left: 0; width: 12px; height: 12px; border: 2px solid var(--steel-blue); border-radius: 50%; background: #F7F9FA; content: ""; }
.workflow-rail li + li::before { left: -6px; }
.workflow-rail li > span { color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 12px; }
.workflow-rail small { display: block; margin-top: 16px; color: #60727B; font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.workflow-rail h3 { margin: 11px 0 9px; font-size: 20px; line-height: 1.18; }
.workflow-rail p { max-width: 240px; margin: 0; color: #536168; font-size: 16px; line-height: 1.58; }

.responsibility-section { background: var(--bright-surface); }
.responsibility-grid { display: grid; grid-template-columns: minmax(0,1.07fr) minmax(0,.93fr); margin-top: 62px; border: 1px solid var(--border-silver); }
.responsibility-grid article { min-height: 376px; padding: 34px 38px; }
.aidcgo-responsibility { border-left: 1px solid var(--border-silver); background: var(--pale-aluminum); }
.responsibility-grid header { padding-bottom: 25px; border-bottom: 1px solid var(--border-silver); }
.responsibility-grid small { color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.responsibility-grid h3 { margin: 12px 0 0; font-family: var(--display-font); font-size: 27px; letter-spacing: -.04em; line-height: 1.13; }
.responsibility-grid ul { display: grid; gap: 17px; margin: 27px 0 0; padding: 0; list-style: none; }
.responsibility-grid li { position: relative; max-width: 460px; padding-left: 19px; color: #4B5A61; font-size: 16px; line-height: 1.52; }
.responsibility-grid li::before { position: absolute; top: .61em; left: 0; width: 7px; height: 1px; background: var(--steel-blue); content: ""; }
.scope-note { max-width: 690px; margin: 28px 0 0 auto; padding-left: 18px; border-left: 2px solid var(--steel-blue); color: #526169; font-size: 15px; }

.validation-section { padding: 0; background: var(--graphite); color: #fff; }
.validation-grid { display: grid; grid-template-columns: 37% minmax(0,63%); min-height: 650px; }
.validation-copy { padding: 83px 46px 76px 0; }
.validation-copy h2 { margin: 21px 0 25px; color: #fff; font-family: var(--display-font); font-size: clamp(38px,3.55vw,54px); letter-spacing: -.06em; line-height: 1.02; }
.validation-copy h2 em { color: #CBD6DA; }
.validation-copy .body-lead { max-width: 420px; margin: 0 0 28px; color: #BECAD0; font-size: 16px; line-height: 1.66; }
.validation-composition { display: grid; grid-template-columns: minmax(0,.94fr) minmax(0,1.06fr); min-width: 0; min-height: 650px; border-left: 1px solid rgba(197,205,210,.3); }
.validation-stage { min-height: 650px; position: relative; overflow: hidden; margin: 0; padding: 44px 28px; background: radial-gradient(ellipse 72% 52% at 50% 53%, rgba(49,90,115,.28), rgba(49,90,115,0) 72%), linear-gradient(145deg, #1D272C 0%, #141C20 82%); }
.validation-stage::before { position: absolute; inset: 82px 28px 108px; border-top: 1px solid rgba(159,198,220,.18); border-left: 1px solid rgba(159,198,220,.13); background: linear-gradient(90deg, transparent 49.7%, rgba(159,198,220,.09) 49.7%, rgba(159,198,220,.09) 50.3%, transparent 50.3%), linear-gradient(0deg, transparent 49.7%, rgba(159,198,220,.08) 49.7%, rgba(159,198,220,.08) 50.3%, transparent 50.3%); content: ""; }
.validation-stage-topline { position: relative; z-index: 3; display: flex; align-items: center; gap: 10px; color: #9FC6DC; font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; line-height: 1.25; }
.validation-stage-topline i { display: block; height: 1px; flex: 1; background: rgba(159,198,220,.32); }
.validation-stage-grid { position: absolute; z-index: 0; inset: 82px 28px 108px; display: grid; grid-template-columns: repeat(3,1fr); grid-template-rows: repeat(2,1fr); border-right: 1px solid rgba(159,198,220,.09); border-bottom: 1px solid rgba(159,198,220,.09); transform: skewY(-4deg); }
.validation-stage-grid span { border-right: 1px solid rgba(159,198,220,.09); border-bottom: 1px solid rgba(159,198,220,.09); }
.validation-product { position: absolute; z-index: 2; top: 106px; right: 16px; bottom: 126px; left: 16px; width: calc(100% - 32px); height: calc(100% - 232px); object-fit: contain; filter: drop-shadow(0 24px 18px rgba(0,0,0,.42)); }
.validation-stage figcaption { position: absolute; z-index: 3; right: 28px; bottom: 42px; left: 28px; display: grid; gap: 4px; padding-top: 14px; border-top: 1px solid rgba(159,198,220,.33); }
.validation-stage figcaption span { color: #9FC6DC; font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.validation-stage figcaption strong { color: #fff; font-size: 15px; letter-spacing: .025em; }
.validation-stage figcaption small { color: #BAC8CE; font-size: 12px; line-height: 1.38; }
.validation-board { min-width: 0; padding: 44px 34px; background: rgba(12,18,21,.2); }
.validation-board .board-topline { color: #9FC6DC; }
.validation-board ol { display: grid; grid-template-columns: 1fr; margin: 48px 0 0; padding: 0; list-style: none; }
.validation-board li { display: grid; grid-template-columns: 32px minmax(0,1fr); gap: 13px; min-height: 128px; padding: 20px 0; border-top: 1px solid rgba(197,205,210,.28); }
.validation-board li:last-child { border-bottom: 1px solid rgba(197,205,210,.28); }
.validation-board li > span { color: #9FC6DC; font-family: var(--technical-font); font-size: 11px; }
.validation-board strong { color: #fff; font-size: 17px; line-height: 1.34; }
.validation-board p { margin: 9px 0 0; color: #C1CDD2; font-size: 16px; line-height: 1.55; }

.intake-section { background: var(--titanium-white); }
.intake-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); margin: 62px 0 0; padding: 0; border-top: 1px solid var(--border-silver); border-left: 1px solid var(--border-silver); list-style: none; }
.intake-group { min-width: 0; margin: 0; padding: 0; border-right: 1px solid var(--border-silver); border-bottom: 1px solid var(--border-silver); }
.intake-group:nth-child(2), .intake-group:nth-child(3) { background: rgba(221,227,230,.33); }
.intake-group:last-child { grid-column: span 2; }
.intake-group > ol { display: grid; margin: 0; padding: 0; list-style: none; }
.intake-group:last-child > ol { grid-template-columns: repeat(2,minmax(0,1fr)); }
.intake-question { display: grid; grid-template-columns: 34px minmax(0,1fr); column-gap: 13px; min-height: 128px; padding: 22px 24px; border-bottom: 1px solid var(--border-silver); }
.intake-question:last-child { border-bottom: 0; }
.intake-group:last-child .intake-question { min-height: 126px; }
.intake-group:last-child .intake-question + .intake-question { border-top: 0; border-left: 1px solid var(--border-silver); }
.intake-question span { color: var(--steel-blue-deep); font-family: var(--technical-font); font-size: 12px; }
.intake-question strong { align-self: end; color: #253137; font-size: 18px; line-height: 1.25; }
.intake-question p { grid-column: 2; margin: 8px 0 0; color: #54636A; font-size: 16px; line-height: 1.48; }

.faq-section { padding: 102px 0; background: var(--deep-stage); color: #fff; }
.faq-list { margin-top: 62px; border-top: 1px solid rgba(197,205,210,.42); }
.faq-list details { border-bottom: 1px solid rgba(197,205,210,.26); }
.faq-list summary { display: flex; min-height: 62px; align-items: center; position: relative; padding: 18px 52px 18px 0; color: #fff; cursor: pointer; font-size: 18px; font-weight: 720; line-height: 1.36; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before, .faq-list summary::after { position: absolute; right: 10px; width: 17px; height: 2px; background: #9FC6DC; content: ""; }
.faq-list summary::after { transform: rotate(90deg); transition: transform .18s ease; }
.faq-list details[open] summary::after { transform: rotate(0); }
.faq-list details p { max-width: 825px; margin: 0; padding: 0 52px 25px 0; color: #C1CDD2; font-size: 16px; line-height: 1.66; }

.cooperation-section { padding: 68px 0; background: var(--pale-aluminum); }
.cooperation-grid { display: grid; grid-template-columns: 16% minmax(0,1fr) minmax(320px,.66fr); align-items: center; gap: 28px; }
.cooperation-meta { display: flex; align-items: baseline; gap: 10px; color: var(--steel-blue-deep); }
.cooperation-meta span, .cooperation-meta p { margin: 0; font-family: var(--technical-font); font-size: 12px; font-weight: 700; letter-spacing: .08em; }
.cooperation-copy h2 { margin: 12px 0 0; font-family: var(--display-font); font-size: clamp(34px,3.4vw,51px); letter-spacing: -.055em; line-height: 1.02; }
.cooperation-action { max-width: 370px; justify-self: end; }
.cooperation-action p { margin: 0 0 20px; color: #526169; font-size: 16px; line-height: 1.57; }

.site-footer { padding: 72px 0 0; background: var(--graphite); color: #fff; }
.footer-grid { display: grid; grid-template-columns: 34% minmax(0,1fr); gap: 64px; }
.footer-brand > p { max-width: 315px; margin: 25px 0 17px; color: #C1CDD2; font-size: 16px; line-height: 1.6; }
.brand.inverse { color: #fff; }
.footer-email { display: inline-flex; min-height: 44px; align-items: center; color: #9FC6DC; font-size: 16px; font-weight: 700; text-decoration: none; }
.footer-email span { margin-left: 12px; }
.footer-nav { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; }
.footer-nav div { display: grid; align-content: start; gap: 11px; }
.footer-nav small { margin-bottom: 6px; color: #8FBAD2; font-family: var(--technical-font); font-size: 11px; font-weight: 700; letter-spacing: .09em; }
.footer-nav a { display: flex; min-height: 44px; align-items: center; color: #D3DDE1; font-size: 14px; line-height: 1.4; text-decoration: none; }
.footer-nav a:hover { color: #9FC6DC; }
.footer-base { display: flex; justify-content: space-between; gap: 24px; margin-top: 62px; padding: 18px 0; border-top: 1px solid rgba(197,205,210,.25); color: #AEBBC1; font-size: 13px; }

:focus-visible { outline: 3px solid #3D7898; outline-offset: 4px; }
.oem-hero :focus-visible, .layers-section :focus-visible, .validation-section :focus-visible, .faq-section :focus-visible, .site-footer :focus-visible { outline-color: #B7E2F4; }

@media (max-width: 1180px) {
  :root { --gutter: 40px; }
  .site-header { gap: 16px; }
  .desktop-nav a { padding-inline: 9px; font-size: 13px; }
  .cut-action { gap: 21px; }
  .hero-copy { padding-top: 72px; }
  .hero-stage { padding-inline: 36px; }
  .hero-product { right: 43px; left: 43px; width: calc(100% - 86px); }
  .product-caption, .stage-path { right: 36px; left: 36px; }
  .stage-grid { right: 36px; left: 36px; }
  .section-heading { grid-template-columns: 18% minmax(0,1fr) minmax(190px,.55fr); gap: 22px; }
  .validation-stage { padding-inline: 24px; }
  .validation-stage::before, .validation-stage-grid { right: 24px; left: 24px; }
  .validation-stage figcaption { right: 24px; left: 24px; }
}

@media (max-width: 960px) {
  :root { --gutter: 32px; }
  .site-header { min-height: 84px; }
  .desktop-nav a { min-height: 84px; padding-inline: 7px; }
  .header-action { font-size: 13px; }
  .oem-hero { grid-template-columns: 50% 50%; }
  .hero-copy { min-height: 676px; padding-right: 30px; }
  .hero-copy h1 { font-size: 48px; }
  .hero-stage { min-height: 676px; }
  .hero-product { top: 109px; bottom: 145px; }
  .stage-path { bottom: 28px; }
  .section-heading { grid-template-columns: 1fr minmax(0,1.85fr); }
  .section-heading > p { grid-column: 2; }
  .section-index { grid-row: span 2; }
  .signal-grid article { min-height: 300px; }
  .direction-panel { padding: 31px; }
  .direction-panel h3 { font-size: 31px; }
  .workflow-rail { grid-template-columns: repeat(2,minmax(0,1fr)); row-gap: 0; padding-top: 0; }
  .workflow-rail::before { display: none; }
  .workflow-rail li, .workflow-rail li:not(:last-child) { min-height: 240px; padding: 27px 24px; border-top: 1px solid var(--border-silver); border-right: 1px solid var(--border-silver); }
  .workflow-rail li:nth-child(2n) { border-right: 0; }
  .workflow-rail li::before, .workflow-rail li + li::before { top: -6px; left: 0; }
  .workflow-rail li:nth-child(2n)::before { left: -6px; }
  .validation-grid { grid-template-columns: 1fr; min-height: 0; }
  .validation-copy { padding-right: 0; }
  .validation-composition { min-height: 560px; grid-template-columns: minmax(0,.94fr) minmax(0,1.06fr); border-left: 0; border-top: 1px solid rgba(197,205,210,.3); }
  .validation-stage { min-height: 560px; }
  .validation-board { padding: 36px 32px; }
  .validation-board ol { margin-top: 36px; }
  .validation-board li { min-height: 116px; }
  .cooperation-grid { grid-template-columns: 16% minmax(0,1fr); }
  .cooperation-action { grid-column: 2; justify-self: start; max-width: 440px; }
}

@media (max-width: 760px) {
  :root { --gutter: 22px; }
  .page-shell { box-shadow: none; }
  .site-header { min-height: 74px; grid-template-columns: 1fr auto; padding-inline: var(--gutter); }
  .brand-mark { width: 28px; height: 28px; }
  .brand-name { font-size: 16px; }
  .desktop-nav, .header-action { display: none; }
  .mobile-menu { display: inline-grid; width: 46px; height: 46px; align-content: center; justify-items: center; gap: 6px; padding: 0; border: 0; background: transparent; color: var(--graphite); cursor: pointer; }
  .mobile-menu span { display: block; width: 22px; height: 2px; background: currentColor; }
  .mobile-menu[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .mobile-menu[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  html.mobile-navigation-open .site-header { z-index: 101; background: transparent; border-bottom-color: transparent; pointer-events: none; }
  html.mobile-navigation-open .site-header .brand { visibility: hidden; }
  html.mobile-navigation-open .mobile-menu { position: fixed; z-index: 102; top: 14px; right: var(--gutter); box-sizing: border-box; background: var(--titanium-white); color: var(--graphite); pointer-events: auto; }
  html.mobile-navigation-open body.admin-bar .mobile-menu { top: calc(var(--wp-admin--admin-bar--height, 46px) + 14px); }
  .oem-hero { grid-template-columns: 1fr; }
  .hero-copy { min-height: 0; padding: 42px var(--gutter) 27px; }
  .hero-copy h1 { margin: 17px 0 18px; font-size: clamp(35px,10vw,42px); letter-spacing: -.057em; line-height: 1.01; }
  .hero-copy .body-lead { font-size: 16px; line-height: 1.6; }
  .hero-actions { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 27px; padding-top: 0; }
  .hero-actions .cut-action { width: 100%; }
  .hero-actions .text-action { width: max-content; }
  /* The stage repeats this three-part relationship. Remove the mobile duplicate
     so the real product becomes visible during the first fold. */
  .hero-scope { display: none; }
  .hero-stage { min-height: 343px; height: 343px; padding: 21px var(--gutter); }
  .stage-topline { gap: 8px; font-size: 11px; }
  .stage-grid { inset: 67px var(--gutter) 66px; transform: skewY(-4deg); }
  .hero-product { top: 47px; right: 44px; bottom: 77px; left: 44px; width: calc(100% - 88px); height: calc(100% - 124px); filter: drop-shadow(0 15px 13px rgba(11,20,24,.24)); }
  .product-caption { right: var(--gutter); bottom: 70px; left: auto; }
  .product-caption span { font-size: 11px; }
  .product-caption strong { font-size: 12px; }
  .product-caption small { display: none; }
  .stage-path { right: var(--gutter); bottom: 17px; left: var(--gutter); padding-top: 12px; }
  .stage-path li { min-height: 34px; padding: 0 6px 0 21px; }
  .stage-path li:not(:last-child)::after { top: 8px; }
  .stage-path span { font-size: 11px; }
  .stage-path strong { font-size: 11px; line-height: 1.3; }
  .standard-section, .direction-section, .workflow-section, .responsibility-section, .intake-section, .layers-section, .faq-section { padding: 54px 0; }
  .section-heading { display: block; }
  .section-heading h2 { margin: 16px 0 15px; font-size: 35px; }
  .section-heading > p { margin: 0; font-size: 16px; }
  .standard-heading { padding-bottom: 28px; }
  .signal-grid { grid-template-columns: 1fr; }
  .signal-grid article, .signal-grid article + article { min-height: 0; padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--border-silver); }
  .signal-grid article:last-child { border-bottom: 0; }
  .signal-grid h3 { margin: 12px 0 7px; font-size: 23px; }
  .section-note { margin: 24px 0 0; font-size: 16px; }
  .decision-layers { grid-template-columns: 1fr; margin-top: 31px; }
  .decision-layers li { grid-template-columns: 32px minmax(0,1fr) 22px; gap: 12px; min-height: 0; padding: 24px 20px; }
  .decision-layers h3 { margin: 12px 0 8px; font-size: 23px; }
  .decision-layers p { font-size: 15px; }
  .direction-panels { grid-template-columns: 1fr; margin-top: 31px; }
  .direction-panel { min-height: 0; padding: 27px 23px; }
  .direction-panel h3 { margin: 23px 0 12px; font-size: 31px; }
  .direction-panel ul { margin-top: 19px; }
  .direction-disclaimer { margin-top: 21px; font-size: 16px; }
  .workflow-rail { grid-template-columns: 1fr; gap: 0; margin-top: 31px; padding: 0 0 0 28px; border-left: 1px solid var(--border-silver); }
  .workflow-rail li, .workflow-rail li:not(:last-child), .workflow-rail li + li { min-height: 0; padding: 0 0 29px 25px; border: 0; }
  .workflow-rail li::before, .workflow-rail li + li::before, .workflow-rail li:nth-child(2n)::before { top: 4px; left: -35px; background: #F7F9FA; }
  .workflow-rail li > span { display: block; margin-bottom: 10px; }
  .workflow-rail small { margin-top: 0; font-size: 11px; }
  .workflow-rail h3 { margin: 8px 0 7px; }
  .responsibility-grid { grid-template-columns: 1fr; margin-top: 31px; }
  .responsibility-grid article { min-height: 0; padding: 27px 23px; }
  .aidcgo-responsibility { border-top: 1px solid var(--border-silver); border-left: 0; }
  .responsibility-grid h3 { font-size: 25px; }
  .responsibility-grid li { font-size: 16px; }
  .scope-note { margin: 22px 0 0; font-size: 16px; }
  .validation-grid { grid-template-columns: 1fr; min-height: 0; }
  .validation-copy { padding: 52px 0 27px; }
  .validation-copy h2 { font-size: 36px; }
  .validation-composition { display: block; min-height: 0; border-top: 1px solid rgba(197,205,210,.3); }
  .validation-stage { min-height: 356px; padding: 25px var(--gutter); }
  .validation-stage::before { inset: 60px var(--gutter) 91px; }
  .validation-stage-grid { inset: 60px var(--gutter) 91px; }
  .validation-stage-topline { font-size: 11px; }
  .validation-product { top: 58px; right: 20px; bottom: 78px; left: 20px; width: calc(100% - 40px); height: calc(100% - 136px); }
  .validation-stage figcaption { right: var(--gutter); bottom: 24px; left: var(--gutter); padding-top: 10px; }
  .validation-stage figcaption span { font-size: 11px; }
  .validation-stage figcaption strong { font-size: 15px; }
  .validation-stage figcaption small { font-size: 12px; }
  .validation-board { min-height: 0; padding: 22px 0 24px; border-top: 1px solid rgba(197,205,210,.3); background: transparent; }
  .validation-board .board-topline { margin: 0; }
  .validation-board ol { grid-template-columns: 1fr; margin: 20px 0 0; }
  .validation-board li { min-height: 0; padding: 13px 0; }
  .validation-board strong { font-size: 16px; }
  .validation-board p { font-size: 16px; }
  .intake-list { grid-template-columns: 1fr; gap: 8px; margin-top: 30px; border: 0; }
  .intake-group, .intake-group:last-child { grid-column: auto; border: 1px solid var(--border-silver); background: transparent; }
  .intake-group:nth-child(2), .intake-group:nth-child(4) { background: rgba(221,227,230,.33); }
  .intake-group:last-child > ol { grid-template-columns: 1fr; }
  .intake-question, .intake-group:last-child .intake-question { grid-template-columns: 29px minmax(0,1fr); min-height: 0; column-gap: 10px; padding: 12px 14px; border-bottom: 0; }
  .intake-question + .intake-question, .intake-group:last-child .intake-question + .intake-question { border-top: 1px solid var(--border-silver); border-left: 0; }
  .intake-question span { font-size: 11px; }
  .intake-question strong { font-size: 17px; }
  .intake-question p { font-size: 16px; }
  .faq-list { margin-top: 31px; }
  .faq-list summary { min-height: 64px; padding-right: 42px; font-size: 17px; }
  .faq-list details p { padding: 0 10px 22px 0; font-size: 16px; }
  .cooperation-section { padding: 48px 0; }
  .cooperation-grid { grid-template-columns: 1fr; gap: 18px; }
  .cooperation-copy h2 { font-size: 37px; }
  .cooperation-action { justify-self: start; max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 47px; }
  .footer-nav { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px 20px; }
  .footer-base { align-items: flex-start; flex-direction: column; gap: 7px; margin-top: 43px; }
  .signal-grid p, .decision-layers p, .direction-panel p, .workflow-rail p, .validation-board p, .cooperation-action p, .footer-brand > p { font-size: 16px; }
}

@media (max-width: 390px) {
  .hero-product { right: 35px; left: 35px; width: calc(100% - 70px); }
  .stage-path li { padding-left: 18px; }
  .stage-path strong { font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}