:root {
  --ink: #1c211e;
  --ink-soft: #59605b;
  --paper: #f4f1ea;
  --white: #ffffff;
  --mineral: #d8d7d0;
  --line: rgba(28, 33, 30, .18);
  --forest: #173d31;
  --forest-deep: #112c24;
  --brass: #b18b5c;
  --max: 1240px;
  --serif: Iowan Old Style, Baskerville, "Times New Roman", serif;
  --sans: "Avenir Next", Avenir, "Helvetica Neue", Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.5; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.eyebrow { margin: 0; color: var(--brass); font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.display { margin: 12px 0 0; font-family: var(--serif); font-size: clamp(40px, 5.2vw, 76px); font-weight: 400; letter-spacing: 0; line-height: .96; text-wrap: pretty; }
.lede { max-width: 590px; margin: 24px 0 0; color: var(--ink-soft); font-size: 18px; text-wrap: pretty; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 12px 19px; border: 1px solid var(--forest); border-radius: 3px; background: var(--forest); color: var(--white); font-size: 13px; font-weight: 700; letter-spacing: .01em; transition: background .2s ease, transform .2s ease; }
.button:hover { transform: translateY(-1px); background: var(--forest-deep); }

.site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid var(--line); background: rgba(244,241,234,.96); backdrop-filter: blur(14px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 70px; gap: 24px; }
.brand { display: inline-flex; align-items: center; }
.brand img { width: 112px; }
.nav { display: flex; align-items: center; gap: 24px; }
.nav a { color: var(--ink-soft); font-size: 12px; font-weight: 700; letter-spacing: .04em; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--forest); }
.nav .button { min-height: 37px; padding: 8px 14px; color: var(--white); }
.nav-toggle { display: none; border: 0; background: none; color: var(--forest); font-size: 12px; font-weight: 700; letter-spacing: .05em; }

.page-hero { display: grid; grid-template-columns: .88fr 1.12fr; min-height: 600px; background: var(--ink); color: var(--white); }
.page-hero-copy { display: flex; flex-direction: column; justify-content: flex-end; padding: 88px clamp(30px, 7vw, 110px) 74px max(24px, calc((100vw - var(--max)) / 2)); }
.page-hero .eyebrow { color: #d6c2a5; }
.page-hero h1 { max-width: 570px; margin: 14px 0 0; font-family: var(--serif); font-size: clamp(48px, 5.2vw, 76px); font-weight: 400; line-height: .92; text-wrap: pretty; }
.page-hero p:not(.eyebrow) { max-width: 500px; margin: 23px 0 0; color: rgba(255,255,255,.76); font-size: 17px; }
.page-hero-image { min-height: 380px; }
.page-hero-image img { width: 100%; height: 100%; object-fit: cover; }

.page-intro { display: grid; grid-template-columns: 1fr .75fr; gap: clamp(34px, 7vw, 110px); padding: 108px 0 70px; align-items: end; }
.page-intro .lede { margin: 0; }
.page-intro .display { max-width: 820px; }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 0 42px; }
.filter-row button { min-height: 38px; padding: 8px 13px; border: 1px solid var(--line); border-radius: 2px; background: transparent; color: var(--ink-soft); font-size: 12px; font-weight: 700; }
.filter-row button.is-active, .filter-row button:hover { border-color: var(--forest); background: var(--forest); color: var(--white); }

.reference-group { margin: 0 0 86px; }
.reference-group[hidden] { display: none; }
.reference-group-heading { display: grid; grid-template-columns: 1fr .75fr; gap: clamp(34px, 7vw, 110px); padding: 0 0 30px; align-items: end; }
.reference-group-heading h3 { max-width: 660px; margin: 12px 0 0; font-family: var(--serif); font-size: clamp(34px, 3.7vw, 54px); font-weight: 400; line-height: 1; }
.reference-group-heading p:not(.eyebrow) { margin: 0; color: var(--ink-soft); }
.reference-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.reference-card { display: flex; min-height: 420px; flex-direction: column; overflow: hidden; background: var(--white); border: 1px solid var(--line); }
.reference-card[hidden] { display: none; }
.reference-card img { width: 100%; height: 260px; object-fit: cover; }
.reference-card-copy { display: flex; min-height: 160px; flex: 1; flex-direction: column; padding: 24px; }
.reference-card p { margin: 0; color: var(--brass); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.reference-card h2 { margin: 15px 0 0; font-family: var(--serif); font-size: 29px; font-weight: 400; line-height: 1.02; }
.reference-card a { margin-top: auto; padding-top: 20px; color: var(--forest); font-size: 13px; font-weight: 700; }
.archive-note { margin: 0 0 108px; padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 14px; }
.archive-note[hidden] { display: none; }
.archive-note strong { color: var(--ink); }

.split-proof { display: grid; grid-template-columns: 1fr 1fr; min-height: 640px; overflow: hidden; background: var(--white); }
.split-proof-image { min-height: 400px; }
.split-proof-image img { width: 100%; height: 100%; object-fit: cover; }
.split-proof-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 8vw, 132px); }
.split-proof-copy .display { font-size: clamp(38px, 4.1vw, 62px); }
.plain-list { display: grid; gap: 0; margin: 36px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.plain-list li { padding: 15px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); }

.scope-band { padding: 104px 0; background: #e1dfd6; }
.scope-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 52px; border: 1px solid var(--line); background: var(--line); }
.scope-grid article { min-height: 224px; padding: 28px; background: #e1dfd6; }
.scope-grid span { color: var(--brass); font-size: 11px; font-weight: 700; letter-spacing: .13em; }
.scope-grid h2 { margin: 48px 0 8px; font-family: var(--serif); font-size: 28px; font-weight: 400; line-height: 1.02; }
.scope-grid p { margin: 0; color: var(--ink-soft); font-size: 14px; }

.product-grid, .process-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 54px; }
.product-card, .process-card { overflow: hidden; background: var(--white); border: 1px solid var(--line); }
.product-card img, .process-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.product-card-copy, .process-card-copy { padding: 25px; }
.product-card p, .process-card p { margin: 0; color: var(--brass); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.product-card h2, .process-card h2 { margin: 15px 0 8px; font-family: var(--serif); font-size: clamp(28px, 2.5vw, 38px); font-weight: 400; line-height: 1; }
.product-card span, .process-card span { color: var(--ink-soft); font-size: 14px; }
.proof-note { margin: 40px 0 0; padding: 21px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; }
.proof-note strong { color: var(--ink); }

.detail-hero { padding: 98px 0 68px; background: var(--ink); color: var(--white); }
.detail-hero .eyebrow { color: #d6c2a5; }
.detail-hero h1 { max-width: 780px; margin: 14px 0 0; font-family: var(--serif); font-size: clamp(48px, 6.3vw, 94px); font-weight: 400; line-height: .9; text-wrap: pretty; }
.detail-hero p:not(.eyebrow) { max-width: 680px; margin: 25px 0 0; color: rgba(255,255,255,.76); font-size: 18px; }
.detail-image { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; transform: translateY(58px); }
.detail-image img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
.detail-body { padding: 118px 0 108px; }
.detail-body-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: clamp(42px, 8vw, 138px); }
.detail-meta { display: grid; gap: 0; margin: 0; border-top: 1px solid var(--line); }
.detail-meta div { padding: 16px 0; border-bottom: 1px solid var(--line); }
.detail-meta dt { color: var(--brass); font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.detail-meta dd { margin: 4px 0 0; color: var(--ink-soft); }
.detail-body h2 { margin: 0; font-family: var(--serif); font-size: clamp(34px, 3.7vw, 54px); font-weight: 400; line-height: 1; }
.detail-body p { color: var(--ink-soft); font-size: 17px; }
.detail-body p:first-of-type { margin-top: 22px; }
.detail-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.study-gallery { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; margin-top: 48px; }
.study-gallery figure { grid-column: span 4; margin: 0; overflow: hidden; background: var(--white); border: 1px solid var(--line); }
.study-gallery figure:nth-child(1), .study-gallery figure:nth-child(2) { grid-column: span 6; }
.study-gallery img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.study-gallery figcaption { padding: 13px 15px 16px; color: var(--ink-soft); font-size: 12px; }
.study-disclosure { margin: 40px 0 0; padding: 21px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; }
.study-disclosure strong { color: var(--ink); }

.company-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(42px, 8vw, 128px); padding: 114px 0; align-items: start; }
.company-grid .display { max-width: 540px; }
.company-grid .lede { max-width: none; }
.company-facts { display: grid; gap: 0; margin-top: 36px; border-top: 1px solid var(--line); }
.company-facts div { display: grid; grid-template-columns: 150px 1fr; gap: 22px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.company-facts b { color: var(--brass); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.company-facts span { color: var(--ink-soft); }

.page-cta { padding: 100px 0; background: var(--forest); color: var(--white); }
.page-cta-inner { display: flex; align-items: end; justify-content: space-between; gap: 38px; }
.page-cta .eyebrow { color: #d6c2a5; }
.page-cta .display { max-width: 700px; }
.page-cta .button { flex: 0 0 auto; border-color: var(--white); background: var(--white); color: var(--forest); }
.page-cta .button:hover { background: transparent; color: var(--white); }

footer { padding: 28px 0; border-top: 1px solid var(--line); background: var(--paper); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; color: var(--ink-soft); font-size: 12px; }
.footer-brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-weight: 700; }
.footer-brand img { width: 90px; }

@media (max-width: 840px) {
  .wrap { width: min(var(--max), calc(100% - 32px)); }
  .header-inner { min-height: 66px; }
  .brand img { width: 102px; }
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; top: 66px; right: 0; left: 0; flex-direction: column; align-items: stretch; gap: 0; padding: 13px 16px 20px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 0; }
  .nav .button { margin-top: 8px; color: var(--white); }
  .page-hero, .page-intro, .reference-group-heading, .split-proof, .detail-body-grid, .company-grid { grid-template-columns: 1fr; }
  .page-hero-copy { min-height: 510px; padding: 78px 24px 60px; }
  .page-hero-image { min-height: 360px; }
  .page-intro { gap: 28px; padding: 78px 0 38px; }
  .reference-grid, .scope-grid, .product-grid, .process-grid { grid-template-columns: 1fr; }
  .reference-group { margin-bottom: 62px; }
  .reference-card { min-height: 380px; }
  .proof-secondary { min-height: 360px; }
  .split-proof-copy { min-height: 460px; padding: 74px 24px; }
  .scope-band, .detail-body, .company-grid { padding: 78px 0; }
  .detail-hero { padding: 78px 0 42px; }
  .detail-image { width: min(var(--max), calc(100% - 32px)); transform: translateY(38px); }
  .detail-body { padding-top: 88px; }
  .study-gallery { grid-template-columns: 1fr; gap: 14px; margin-top: 34px; }
  .study-gallery figure, .study-gallery figure:nth-child(1), .study-gallery figure:nth-child(2) { grid-column: auto; }
  .company-facts div { grid-template-columns: 1fr; gap: 7px; }
  .page-cta { padding: 78px 0; }
  .page-cta-inner, .footer-inner { flex-direction: column; align-items: flex-start; }
}