/* ============================================================
   Known Entity — knownentity.ca
   Palette and type follow the Known Entity Logo Colour Guide.
   Concept: the site is the business card. Black foil face,
   warm white printed reverse.
   ============================================================ */

:root {
  /* brand */
  --ink: #0a0a0a;
  --paper: #f4f2ed;
  --gold: #806c00;        /* brand gold — light surfaces only */
  --gold-lift: #c9a227;   /* foil gold — dark surfaces only */
  --grey: #a0a0a0;

  /* derived */
  --ink-80: #3a3936;
  --ink-60: #6e6a61;
  --rule-light: rgba(10, 10, 10, 0.13);
  --rule-dark: rgba(244, 242, 237, 0.16);

  /* type */
  --font: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --text-xs: 0.8125rem;
  --text-sm: 0.9375rem;
  --text-base: 1.0625rem;
  --text-lg: 1.3125rem;
  --copy: clamp(1.1875rem, 1.45vw, 1.4375rem);
  --copy-sm: clamp(1.0625rem, 1.15vw, 1.1875rem);
  --text-xl: clamp(1.5rem, 2.2vw, 2rem);
  --text-2xl: clamp(2rem, 4vw, 3.25rem);
  --text-hero: clamp(2.9rem, 9.2vw, 8.5rem);

  /* space */
  --gut: clamp(1.5rem, 5vw, 5.5rem);
  --sec: clamp(5rem, 11vw, 11rem);
  --maxw: 1280px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: var(--text-base);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

::selection { background: var(--gold); color: var(--paper); }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: var(--gut); top: -100px;
  z-index: 200; background: var(--ink); color: var(--paper);
  padding: 0.75rem 1.25rem; font-size: var(--text-sm);
  text-decoration: none; transition: top 0.2s var(--ease);
}
.skip:focus { top: 1rem; }

:focus-visible { outline: 2px solid var(--gold-lift); outline-offset: 3px; }

/* ---------- the gold dash: the brand's signature device ---------- */
.dash {
  display: block;
  width: 2.25rem;
  height: 3px;
  background: var(--gold);
  border: 0;
  margin: 0 0 1.5rem;
  flex: none;
}
.on-dark .dash { background: var(--gold-lift); }

/* ---------- eyebrow ---------- */
.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-60);
  margin: 0 0 1.25rem;
}
.on-dark .eyebrow { color: var(--gold-lift); }

/* ============================================================
   Header
   ============================================================ */
.hdr {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding-block: 1.4rem;
  transition: background 0.4s var(--ease), padding 0.4s var(--ease),
              border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.hdr__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.hdr.is-stuck {
  background: rgba(10, 10, 10, 0.86);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  padding-block: 0.85rem;
  border-bottom-color: var(--rule-dark);
}
.hdr.is-light {
  background: rgba(244, 242, 237, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--rule-light);
}

.brand { display: block; color: var(--paper); width: clamp(148px, 17vw, 196px); }
.brand svg { width: 100%; height: auto; }
.hdr.is-light .brand { color: var(--ink); }
.hdr.is-light .brand .ke-dash { fill: var(--gold); }

.nav { display: flex; align-items: center; gap: clamp(1.25rem, 2.4vw, 2.4rem); }
.nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: rgba(244, 242, 237, 0.72);
  transition: color 0.25s var(--ease);
  padding-block: 0.35rem;
}
.nav a:hover { color: var(--paper); }
.hdr.is-light .nav a { color: var(--ink-60); }
.hdr.is-light .nav a:hover { color: var(--ink); }

.nav__cta {
  border: 1px solid rgba(244, 242, 237, 0.34);
  padding: 0.55rem 1.15rem !important;
  color: var(--paper) !important;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease),
              color 0.25s var(--ease);
}
.nav__cta:hover { background: var(--gold-lift); border-color: var(--gold-lift); color: var(--ink) !important; }
.hdr.is-light .nav__cta { border-color: rgba(10,10,10,0.28); color: var(--ink) !important; }
.hdr.is-light .nav__cta:hover { background: var(--gold); border-color: var(--gold); color: var(--paper) !important; }

.nav__cta .cta-short { display: none; }
@media (max-width: 860px) {
  .nav a:not(.nav__cta) { display: none; }
  .nav__cta { white-space: nowrap; padding: 0.5rem 1rem !important; font-size: var(--text-xs); }
  .nav__cta .cta-long { display: none; }
  .nav__cta .cta-short { display: inline; letter-spacing: 0.14em; text-transform: uppercase; }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding-block: clamp(8rem, 16vh, 12rem) clamp(3.5rem, 8vh, 6rem);
}
.hero__bg {
  position: absolute; inset: 0;
  background-image: url('../assets/hero-texture.webp');
  background-size: cover;
  background-position: 28% 50%;
  opacity: 0.62;
}
.hero__veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(10,10,10,0.5) 0%, rgba(10,10,10,0.86) 52%, rgba(10,10,10,0.97) 100%),
    linear-gradient(to top, rgba(10,10,10,0.92) 0%, rgba(10,10,10,0) 42%);
}
.hero__in { position: relative; width: 100%; }

.hero h1 {
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 0.92;
  margin: 0 0 clamp(1.75rem, 3.5vw, 2.75rem);
  max-width: 15ch;
}
.hero h1 .amp {
  font-weight: 300;
  font-style: italic;
  color: var(--gold-lift);
  letter-spacing: -0.02em;
  padding-inline: 0.06em;
}

.hero__lede {
  font-size: clamp(1.0625rem, 1.35vw, 1.3125rem);
  line-height: 1.55;
  color: rgba(244, 242, 237, 0.82);
  max-width: 46ch;
  margin: 0;
  font-weight: 300;
}

.hero__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem 2rem;
  margin-top: clamp(3rem, 7vw, 5.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule-dark);
}
.hero__cities {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: rgba(244, 242, 237, 0.6);
  margin: 0;
}

.scrollcue {
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-size: var(--text-xs); letter-spacing: 0.2em; text-transform: uppercase;
  font-weight: 600; color: rgba(244,242,237,0.55);
  text-decoration: none; transition: color 0.25s var(--ease);
}
.scrollcue:hover { color: var(--gold-lift); }
.scrollcue span:last-child {
  width: 2rem; height: 1px; background: currentColor;
  transition: width 0.35s var(--ease);
}
.scrollcue:hover span:last-child { width: 3rem; }

/* ============================================================
   Sections
   ============================================================ */
.sec { padding-block: var(--sec); }
.sec--dark { background: var(--ink); color: var(--paper); }
.sec--tight { padding-block: clamp(3.5rem, 7vw, 6rem); }

.sec__head { max-width: 62ch; margin-bottom: clamp(3rem, 6vw, 5rem); }
.sec__head h2 {
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.028em;
  line-height: 1.08;
  margin: 0;
  max-width: 20ch;
}
.sec__head p {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--ink-60);
  font-weight: 300;
  margin: 1.4rem 0 0;
  max-width: 54ch;
}
.on-dark .sec__head p { color: rgba(244, 242, 237, 0.68); }

/* ---------- positioning statement ---------- */
.stmt {
  border-top: 1px solid var(--rule-light);
  border-bottom: 1px solid var(--rule-light);
}
.stmt blockquote {
  margin: 0;
  font-size: clamp(1.5rem, 3.4vw, 2.75rem);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.024em;
  max-width: 24ch;
}
.stmt blockquote em { font-style: normal; color: var(--gold); font-weight: 500; }

/* ---------- practice ---------- */
.grid2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--rule-light);
}
@media (min-width: 760px) {
  .grid2 { grid-template-columns: 1fr 1fr; }
}
.card {
  padding: clamp(2.25rem, 3.6vw, 3.25rem) clamp(1.5rem, 2.6vw, 2.75rem)
           clamp(2.5rem, 4vw, 3.5rem) 0;
  border-bottom: 1px solid var(--rule-light);
  position: relative;
}
.card::after {
  content: '';
  position: absolute; left: 0; bottom: -1px; height: 1px; width: 0;
  background: var(--gold);
  transition: width 0.55s var(--ease);
}
.card:hover::after { width: 100%; }
.card__no {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin: 0 0 1rem;
  font-variant-numeric: tabular-nums;
}
.card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.15;
  margin: 0 0 0.9rem;
  max-width: 18ch;
}
.card p { margin: 0; color: var(--ink-60); max-width: 42ch; }
.card ul {
  margin: 1.4rem 0 0; padding: 0; list-style: none;
  font-size: var(--text-sm); color: var(--ink-80);
}
.card ul li { padding-left: 1.1rem; position: relative; margin-bottom: 0.45rem; }
.card ul li::before {
  content: ''; position: absolute; left: 0; top: 0.68em;
  width: 0.55rem; height: 1px; background: var(--gold);
}

@media (min-width: 760px) {
  .grid2 > .card:nth-child(odd) { padding-right: clamp(2rem, 4vw, 4.5rem); }
  .grid2 > .card:nth-child(even) {
    padding-left: clamp(2rem, 4vw, 4.5rem);
    border-left: 1px solid var(--rule-light);
  }
}

/* ---------- method ---------- */
.method { display: grid; gap: 0; }
.method__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem 3rem;
  padding-block: clamp(2rem, 3.4vw, 2.9rem);
  border-bottom: 1px solid var(--rule-dark);
  align-items: start;
}
.method__row:first-child { border-top: 1px solid var(--rule-dark); }
@media (min-width: 820px) {
  .method__row { grid-template-columns: 4.5rem minmax(0, 20rem) minmax(0, 1fr); gap: 3rem; }
}
.method__no {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em;
  color: var(--gold-lift); font-variant-numeric: tabular-nums; padding-top: 0.35rem;
}
.method__row h3 {
  font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.015em;
  margin: 0; line-height: 1.3;
}
.method__row p {
  margin: 0; color: rgba(244, 242, 237, 0.68);
  font-weight: 300; max-width: 56ch;
}

/* ---------- work ---------- */
.work { display: grid; gap: clamp(2.5rem, 5vw, 4rem); }
@media (min-width: 900px) { .work { grid-template-columns: repeat(3, 1fr); } }
.work__item { border-top: 2px solid var(--ink); padding-top: 1.6rem; }
.work__kind {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold); margin: 0 0 1rem;
}
.work__item h3 {
  font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.015em;
  line-height: 1.28; margin: 0 0 0.85rem; max-width: 22ch;
}
.work__item p { margin: 0; color: var(--ink-60); font-size: var(--text-sm); line-height: 1.7; }
.work__stat {
  margin-top: 1.5rem; padding-top: 1.1rem;
  border-top: 1px solid var(--rule-light);
  display: flex; align-items: baseline; gap: 0.7rem;
}
.work__stat b {
  font-size: 1.6rem; font-weight: 600; letter-spacing: -0.03em;
  line-height: 1; font-variant-numeric: tabular-nums;
}
.work__stat span {
  font-size: var(--text-xs); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-60); max-width: 16ch; line-height: 1.35;
}

/* ---------- principal ---------- */
.principal { display: grid; gap: clamp(2.5rem, 5vw, 4.5rem); align-items: start; }
@media (min-width: 900px) { .principal { grid-template-columns: 0.85fr 1.15fr; } }

.portrait {
  position: relative;
  aspect-ratio: 4 / 5;
  background-image: url('../assets/paper-texture.webp');
  background-size: cover;
  background-position: center;
  display: flex; align-items: flex-end;
  padding: clamp(1.25rem, 2.4vw, 2rem);
  border: 1px solid var(--rule-light);
}
.portrait__tag {
  font-size: var(--text-xs); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-60); background: rgba(244,242,237,0.82);
  padding: 0.6rem 0.85rem; line-height: 1.4;
}
.principal__body h2 {
  font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.028em;
  line-height: 1.08; margin: 0 0 0.6rem;
}
.principal__body p.principal__role {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.25em;
  text-transform: uppercase; color: var(--gold);
  margin: 0 0 clamp(2rem, 3.4vw, 2.75rem);
}
.principal__body p { color: var(--ink-80); max-width: 56ch; margin: 0 0 1.15rem; }
.principal__body p:last-of-type:not(.principal__role) { margin-bottom: 0; }

/* ---------- contact ---------- */
.contact h2 {
  font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.03em;
  line-height: 1.05; margin: 0 0 1.4rem; max-width: 17ch;
}
.contact__lede {
  color: rgba(244, 242, 237, 0.72); font-weight: 300;
  max-width: 46ch; margin: 0 0 clamp(2.5rem, 5vw, 3.5rem);
  font-size: var(--text-lg); line-height: 1.6;
}
.contact__grid {
  display: grid; gap: 2.25rem 3rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  border-top: 1px solid var(--rule-dark);
  padding-top: 2.25rem;
}
.contact__lbl {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold-lift); margin: 0 0 0.7rem;
}
.contact__val { margin: 0; font-size: var(--text-lg); font-weight: 400; }
.contact__val a { text-decoration: none; position: relative; }
.contact__val a::after {
  content: ''; position: absolute; left: 0; bottom: -3px; height: 1px;
  width: 100%; background: var(--gold-lift);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s var(--ease);
}
.contact__val a:hover::after { transform: scaleX(1); }
.contact__val--sm { font-size: var(--text-sm); color: rgba(244,242,237,0.7); line-height: 1.6; }

/* ---------- footer ---------- */
.ftr {
  background: var(--ink); color: rgba(244, 242, 237, 0.5);
  border-top: 1px solid var(--rule-dark);
  padding-block: 2.75rem;
  font-size: var(--text-xs);
}
.ftr__in {
  display: flex; flex-wrap: wrap; gap: 1.25rem 2rem;
  align-items: center; justify-content: space-between;
}
.ftr__mark { width: 132px; color: rgba(244, 242, 237, 0.62); }
.ftr p { margin: 0; letter-spacing: 0.04em; }
.ftr a { text-decoration: none; }
.ftr a:hover { color: var(--paper); }

/* ============================================================
   Reveal
   ============================================================ */
.rv { opacity: 0; transform: translateY(18px); }
.rv.is-in {
  opacity: 1; transform: none;
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}
@media (prefers-reduced-motion: reduce) {
  .rv, .rv.is-in { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   v3 — Thesis
   ============================================================ */
.thesis .wrap { max-width: var(--maxw); }
.thesis h2 {
  font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.035em;
  line-height: 1.02; margin: 1.6rem 0 clamp(2.5rem, 4.5vw, 3.75rem);
  max-width: 16ch;
}
.thesis__body { max-width: 62ch; }
.thesis__body p {
  font-size: clamp(1.0625rem, 1.35vw, 1.3125rem);
  line-height: 1.62; margin: 0 0 1.6rem; color: rgba(244,242,237,0.74);
}
.thesis__body p:last-child { margin-bottom: 0; }
.thesis__body p.thesis__close {
  color: var(--paper); font-weight: 500;
  padding-top: clamp(1.75rem, 3vw, 2.5rem);
  border-top: 1px solid rgba(244,242,237,0.16);
  margin-top: clamp(2.25rem, 3.6vw, 3rem);
}

/* ============================================================
   v3 — Who we work with
   ============================================================ */
.who .sec__head h2 { max-width: 18ch; }
.who__body {
  max-width: 66ch; margin-top: clamp(2rem, 3.4vw, 2.75rem);
  border-top: 1px solid var(--rule-light); padding-top: clamp(1.75rem, 3vw, 2.5rem);
}
.who__body p { color: var(--ink-80); margin: 0 0 1.15rem; }
.who__body p:last-child {
  margin-bottom: 0; color: var(--ink); font-weight: 500;
}

/* ============================================================
   v3 — Disciplines (capabilities)
   ============================================================ */
.disc { border-top: 1px solid var(--rule-light); }
.disc__row {
  display: grid; grid-template-columns: 1fr; gap: 0.9rem;
  padding: clamp(1.85rem, 3vw, 2.6rem) 0;
  border-bottom: 1px solid var(--rule-light);
}
@media (min-width: 860px) {
  .disc__row { grid-template-columns: 17rem 1fr; gap: clamp(2rem, 4vw, 4rem); align-items: start; }
}
.disc__name {
  font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.02em;
  line-height: 1.2; margin: 0;
}
.disc__items {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 0.3rem 0;
  max-width: 60ch;
}
.disc__items li {
  font-size: var(--text-sm); color: var(--ink-60); line-height: 1.5;
}
.disc__items li:not(:last-child)::after {
  content: '·'; color: var(--gold); margin: 0 0.6em; font-weight: 600;
}

/* ============================================================
   v3 — Full-bleed statement band
   ============================================================ */
.band {
  background: var(--ink); color: var(--paper);
  padding: clamp(6rem, 14vw, 11rem) 0;
  text-align: center;
}
.band p {
  font-size: clamp(1.9rem, 5.4vw, 4rem);
  font-weight: 600; letter-spacing: -0.035em; line-height: 1.06;
  margin: 0 auto; max-width: 20ch;
}

/* ============================================================
   v3 — Work items become links
   ============================================================ */
a.work__item { text-decoration: none; color: inherit; display: block; }
a.work__item:hover h3 { color: var(--gold); }
a.work__item h3 { transition: color 0.28s ease; }
.work__more {
  display: inline-flex; align-items: center; gap: 0.55rem;
  margin-top: 1.35rem;
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--gold);
}
.work__more::after {
  content: ''; width: 1.35rem; height: 1px; background: var(--gold);
  transition: width 0.28s ease;
}
a.work__item:hover .work__more::after { width: 2.35rem; }

/* ============================================================
   v3 — Case study pages
   ============================================================ */
.cs-hero { padding: clamp(9rem, 15vw, 13rem) 0 clamp(3.5rem, 6vw, 5.5rem); }
.cs-hero h1 {
  font-size: var(--text-2xl); font-weight: 600; letter-spacing: -0.035em;
  line-height: 1.04; margin: 1.1rem 0 clamp(1.75rem, 3vw, 2.5rem);
  max-width: 20ch;
}
.cs-hero__stand {
  font-size: clamp(1.0625rem, 1.4vw, 1.3125rem); line-height: 1.6;
  color: rgba(244,242,237,0.74); max-width: 58ch; margin: 0;
}
.cs-block {
  display: grid; grid-template-columns: 1fr; gap: 0.9rem;
  padding: clamp(2.5rem, 4.4vw, 3.75rem) 0;
  border-bottom: 1px solid var(--rule-light);
}
@media (min-width: 900px) {
  .cs-block { grid-template-columns: 15rem 1fr; gap: clamp(2rem, 5vw, 5rem); }
}
.cs-block:first-of-type { border-top: 1px solid var(--rule-light); }
.cs-block__lbl {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ink-60); margin: 0; padding-top: 0.35rem;
}
.cs-block__body { max-width: 62ch; }
.cs-block__body p { color: var(--ink-80); margin: 0 0 1.15rem; }
.cs-block__body p:last-child { margin-bottom: 0; }
.cs-block__body ul { list-style: none; margin: 1.25rem 0 0; padding: 0; }
.cs-block__body ul li {
  position: relative; padding-left: 1.35rem; margin-bottom: 0.75rem;
  font-size: var(--text-sm); color: var(--ink-60); line-height: 1.55;
}
.cs-block__body ul li::before {
  content: ''; position: absolute; left: 0; top: 0.66em;
  width: 0.55rem; height: 1px; background: var(--gold);
}
.cs-figure {
  margin-top: clamp(2rem, 3.4vw, 2.75rem);
  padding-top: clamp(1.5rem, 2.6vw, 2rem);
  border-top: 1px solid var(--rule-light);
  display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap;
}
.cs-figure b {
  font-size: clamp(2.25rem, 4.4vw, 3.25rem); font-weight: 600;
  letter-spacing: -0.035em; line-height: 1;
}
.cs-figure span {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-60); max-width: 18ch; line-height: 1.5;
}
.cs-next { display: grid; grid-template-columns: 1fr; gap: 0; }
@media (min-width: 760px) { .cs-next { grid-template-columns: 1fr 1fr; } }
.cs-next a {
  display: block; text-decoration: none; color: inherit;
  padding: clamp(2rem, 3.4vw, 2.75rem) clamp(1.5rem, 3vw, 2.5rem)
           clamp(2.25rem, 3.6vw, 3rem) 0;
  border-top: 1px solid var(--rule-light);
}
@media (min-width: 760px) {
  .cs-next a:last-child {
    padding-left: clamp(2rem, 3.4vw, 2.75rem); padding-right: 0;
    border-left: 1px solid var(--rule-light);
  }
}
.cs-next .eyebrow { margin-bottom: 0.7rem; }
.cs-next h3 {
  font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.022em;
  line-height: 1.22; margin: 0; transition: color 0.28s ease; max-width: 24ch;
}
.cs-next a:hover h3 { color: var(--gold); }
.backlink {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.16em;
  text-transform: uppercase; color: rgba(244,242,237,0.6);
  text-decoration: none; transition: color 0.25s ease;
}
.backlink::before { content: ''; width: 1.35rem; height: 1px; background: currentColor; }
.backlink:hover { color: var(--gold-lift); }

/* ============================================================
   v3 — process list on LIGHT surfaces (Breadth of delivery, Method)
   ============================================================ */
section:not(.sec--dark) .method__row { border-bottom-color: var(--rule-light); }
section:not(.sec--dark) .method__row:first-child { border-top-color: var(--rule-light); }
section:not(.sec--dark) .method__no { color: var(--gold); }
section:not(.sec--dark) .method__row p { color: var(--ink-80); font-weight: 400; }

/* disciplines on DARK surfaces */
.sec--dark .disc { border-top-color: var(--rule-dark); }
.sec--dark .disc__row { border-bottom-color: var(--rule-dark); }
.sec--dark .disc__items li { color: rgba(244,242,237,0.62); }
.sec--dark .disc__items li:not(:last-child)::after { color: var(--gold-lift); }

/* case-study figure */
.cs-figure { align-items: center; }
.cs-figure span { max-width: 30ch; letter-spacing: 0.14em; }

/* separators lead rather than trail, so a wrap never ends on a dot */
.disc__items li:not(:last-child)::after { content: none; }
.disc__items li:not(:first-child)::before {
  content: '·'; color: var(--gold); margin: 0 0.6em; font-weight: 600;
}
.sec--dark .disc__items li:not(:first-child)::before { color: var(--gold-lift); }

/* ============================================================
   v4 — Asymmetric split layout
   ============================================================ */
.split { display: grid; grid-template-columns: 1fr; gap: clamp(2.25rem, 4vw, 3.5rem); }
@media (min-width: 960px) {
  .split {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: clamp(3rem, 7vw, 7rem);
    align-items: start;
  }
  .split__head { position: sticky; top: clamp(7rem, 12vh, 9.5rem); }
}
.split__head h2 {
  font-size: clamp(2.5rem, 5.4vw, 4.5rem);
  font-weight: 600; letter-spacing: -0.042em; line-height: 0.98;
  margin: 1.4rem 0 0; max-width: 14ch;
}
.split__body { max-width: 56ch; }
.split__body > p:first-child { margin-top: 0.35rem; }

/* thesis + who inherit the split measure, not the old fixed one */
.thesis .split__body, .who .split__body { max-width: 56ch; margin-top: 0; border-top: 0; padding-top: 0; }
.thesis .split__head h2 { max-width: none; }
.thesis__body p.thesis__close { border-top: 0; padding-top: 0; margin-top: 0; }
.who__body p.who__close {
  color: var(--ink); font-weight: 500;
  font-size: clamp(1.0625rem, 1.35vw, 1.25rem); line-height: 1.5;
  margin: 0;
}
.who__body p { color: var(--ink-80); }

/* gold hairline */
hr.rule {
  border: 0; height: 1px; width: 3.5rem; background: var(--gold);
  margin: clamp(2rem, 3.4vw, 2.75rem) 0;
}
.on-dark hr.rule, .sec--dark hr.rule { background: var(--gold-lift); }

/* ============================================================
   v4 — Result / payoff line on work cards
   ============================================================ */
.work__item { border-top-width: 1px; }
.work__kind { color: var(--gold) !important; }
.work__result {
  margin-top: 1.4rem !important; padding-top: 1.1rem;
  border-top: 1px solid rgba(128, 108, 0, 0.32);
  font-size: var(--text-sm) !important; font-weight: 500;
  color: var(--ink) !important; line-height: 1.5 !important;
  letter-spacing: -0.008em;
}

/* ============================================================
   v4 — Numbered process rows: more scale, more gold
   ============================================================ */
.method__no { font-variant-numeric: tabular-nums; }
section:not(.sec--dark) .method__no,
.sec--dark .method__no {
  font-size: clamp(1.5rem, 2.4vw, 2.15rem); font-weight: 600;
  letter-spacing: -0.03em; opacity: 1;
}
.sec--dark .method__no { color: var(--gold-lift); }

/* discipline names pick up gold on dark */
.sec--dark .disc__name { color: var(--paper); }

/* band gets a gold rule above the line */
.band .wrap::before {
  content: ''; display: block; width: 3.5rem; height: 1px;
  background: var(--gold-lift); margin: 0 auto clamp(2rem, 3.6vw, 3rem);
}

/* ============================================================
   v4 — fixes
   ============================================================ */
section[data-tint] { background: #efede8; }

/* top-align the split head; sticky caused vertical drift */
@media (min-width: 960px) {
  .split__head { position: static; }
}
.split__head .eyebrow { margin-top: 0; }

/* ampersand watermark: show more of the glyph, keep it quiet */
.ampmark {
  right: clamp(1rem, 3vw, 4rem); bottom: -0.26em;
  font-size: clamp(16rem, 32vw, 30rem);
}
.ampmark--tl { left: clamp(-1rem, 1vw, 2rem); right: auto; top: -0.26em; bottom: auto; }

/* work cards: payoff and link sit on a common baseline */
@media (min-width: 900px) {
  a.work__item { display: flex; flex-direction: column; }
  a.work__item .work__result { margin-top: auto !important; }
}

/* footer mark carries more weight */
.ftr__mark { width: clamp(160px, 18vw, 208px); }

/* ============================================================
   Pipe-hinged pair device — variant study
   ============================================================ */
.pairline {
  display: flex; align-items: stretch;
  gap: clamp(0.9rem, 2.2vw, 2rem);
  flex-wrap: nowrap;
}
.pairline > span { display: block; }
.pairline .hinge {
  flex: 0 0 auto;
  width: 2px; align-self: stretch;
  background: var(--gold-lift);
  margin-block: 0.1em 0.16em;
}
.sec:not(.sec--dark) .pairline .hinge { background: var(--gold); }

.hero__pair {
  font-size: clamp(2.55rem, 7vw, 6.3rem);
  max-width: none; line-height: 1.0;
}
.pair--head {
  font-size: clamp(2.1rem, 4.4vw, 3.7rem) !important;
  max-width: none !important; line-height: 1.0;
}

@media (max-width: 760px) {
  .pairline { display: block; }
  .pairline .hinge {
    width: 3.25rem; height: 2px; margin: 0.42em 0 0.5em;
    align-self: auto;
  }
  .hero__pair { font-size: clamp(2.6rem, 12vw, 3.6rem); }
}

.thesis__lead {
  font-size: clamp(1.35rem, 2.1vw, 1.85rem) !important;
  font-weight: 500 !important;
  letter-spacing: -0.022em;
  line-height: 1.2 !important;
  color: var(--gold-lift) !important;
  margin: 0 0 1.75rem !important;
}

@media (max-width: 760px) {
  .pairline .hinge { display: block; }
}

/* delivery pair sits on a light surface */
.pair--light .hinge { background: var(--gold); }
.sec__head h2.pair--head { margin-bottom: 1.25rem; }

/* accent clause — gold, same size, no italic slant */
.accent {
  font-style: normal; font-weight: 500;
  color: var(--gold);
  white-space: nowrap;
}
.on-dark .accent, .sec--dark .accent { color: var(--gold-lift); }

/* Thesis — closing claim above the gold rule */
.thesis__claim {
  color: var(--paper);
  font-weight: 500;
  letter-spacing: -0.005em;
}

.portrait--set { background-image: url('../assets/portrait/principal.jpg'); }

/* ============================================================
   v5 — Readability, presence, movement
   ============================================================ */

/* ---- 1. Copy sizes ---- */
.hero__lede { font-size: var(--copy); line-height: 1.5; }
.thesis__body p,
.who__body p,
.split__body p { font-size: var(--copy); line-height: 1.58; }
.sec__head p { font-size: var(--copy); line-height: 1.55; font-weight: 300; }
.method__row p { font-size: var(--copy-sm); line-height: 1.62; }
.work__item p { font-size: var(--copy-sm); line-height: 1.6; }
.work__result { font-size: var(--copy-sm) !important; line-height: 1.45 !important; }
.principal__body p { font-size: var(--copy-sm); line-height: 1.62; }
.cs-hero__stand { font-size: var(--copy); line-height: 1.5; }
.cs-block__body p { font-size: var(--copy); line-height: 1.6; margin-bottom: 1.3rem; }
.cs-block__body ul li { font-size: var(--copy-sm); color: var(--ink-80); line-height: 1.5; margin-bottom: 0.9rem; }
.contact__lede { font-size: var(--copy); line-height: 1.5; }
.who__body p.who__close { font-size: var(--copy) !important; line-height: 1.42; }

/* ---- 2. Opening sequence — CSS-driven, never dependent on script ---- */
.intro {
  position: fixed; inset: 0; z-index: 300;
  background: var(--ink);
  display: grid; place-items: center;
  will-change: transform;
  animation: introLift 0.95s cubic-bezier(0.16, 1, 0.3, 1) 2.5s forwards;
}
.intro__in { text-align: center; padding-inline: var(--gut); }
.intro__mark {
  width: clamp(255px, 50vw, 760px); color: var(--paper); margin-inline: auto;
  clip-path: inset(0 100% 0 0);
  animation: introWipe 1.25s cubic-bezier(0.72, 0, 0.18, 1) 0.25s forwards;
}
.intro__sub {
  display: block; margin-top: clamp(1.4rem, 2.6vw, 2.1rem);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.3em;
  text-transform: uppercase; color: rgba(244, 242, 237, 0.5);
  opacity: 0; animation: introFade 0.8s ease 1.25s forwards;
}
@keyframes introWipe { to { clip-path: inset(0 0 0 0); } }
@keyframes introFade { to { opacity: 1; } }
@keyframes introLift {
  to { transform: translateY(-101%); visibility: hidden; }
}
.intro.is-out {
  animation: none;
  transform: translateY(-101%); visibility: hidden;
  transition: transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}
.no-js .intro, .intro--off { display: none !important; }
@media (prefers-reduced-motion: reduce) {
  .intro { display: none !important; }
}

/* the name, on the page */
.hero__mark {
  width: clamp(190px, 24vw, 330px);
  color: var(--paper);
  margin: 0 0 clamp(1.6rem, 3vw, 2.4rem);
}
.contact__mark {
  width: clamp(210px, 26vw, 380px);
  color: rgba(244, 242, 237, 0.9);
  margin: 0 0 clamp(2.25rem, 4vw, 3.25rem);
}

/* ---- 3. Scroll progress ---- */
.hdr__prog {
  position: absolute; left: 0; bottom: -1px; height: 2px; width: 100%;
  background: var(--gold-lift); transform: scaleX(0); transform-origin: left center;
  opacity: 0; transition: opacity 0.4s ease;
}
.hdr.is-stuck .hdr__prog { opacity: 1; }
.hdr.is-light .hdr__prog { background: var(--gold); }

/* ---- 4. Rules and dashes draw in ---- */
.dash, hr.rule { transform: scaleX(0); transform-origin: left center; }
.dash.is-in, hr.rule.is-in { transform: scaleX(1); transition: transform 0.9s var(--ease); }
.band .wrap::before { transform-origin: center; }
.pairline .hinge { transform: scaleY(0); transform-origin: top center; }
.pairline.is-in .hinge { transform: scaleY(1); transition: transform 1s var(--ease) 0.25s; }
@media (max-width: 760px) {
  .pairline .hinge { transform: scaleX(0); transform-origin: left center; }
  .pairline.is-in .hinge { transform: scaleX(1); }
}
@media (prefers-reduced-motion: reduce) {
  .dash, hr.rule, .pairline .hinge { transform: none !important; }
}

/* ---- 5. Delivery: sticky head, progress rail, promoted lead ---- */
.deliv__grid { display: grid; grid-template-columns: 1fr; gap: clamp(2.5rem, 4vw, 3.5rem); }
@media (min-width: 1000px) {
  .deliv__grid { grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); gap: clamp(3rem, 6vw, 6rem); align-items: start; }
  .deliv__head { position: sticky; top: clamp(7.5rem, 14vh, 10.5rem); }
}
.deliv__head { margin-bottom: 0; max-width: none; }
.deliv__head h2 { max-width: none; }
.deliv__head p { max-width: 40ch; }
.deliv__count {
  display: none; margin-top: clamp(2rem, 3.4vw, 2.75rem);
  align-items: baseline; gap: 0.6rem;
  font-variant-numeric: tabular-nums; color: var(--ink-60);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em;
}
@media (min-width: 1000px) { .deliv__count { display: flex; } }
.deliv__count b {
  font-size: clamp(2rem, 3vw, 2.75rem); font-weight: 600; letter-spacing: -0.03em;
  color: var(--gold); line-height: 1; transition: color 0.4s ease;
}
.deliv__track {
  display: none; width: 100%; height: 2px; background: var(--rule-light);
  margin-top: 1.1rem; position: relative; overflow: hidden;
}
@media (min-width: 1000px) { .deliv__track { display: block; } }
.deliv__track i {
  position: absolute; inset: 0 auto 0 0; width: 25%; background: var(--gold);
  transition: width 0.55s var(--ease);
}

.method__row {
  position: relative;
  padding-left: 0;
  transition: opacity 0.5s ease;
}
@media (min-width: 1000px) {
  .method__row { grid-template-columns: 4.5rem minmax(0, 1fr); gap: 0 2.5rem; }
  .method__row h3 { grid-column: 2; }
  .method__row .method__body { grid-column: 2; }
  .method__no { grid-row: 1 / span 2; }
}
.method__row h3 {
  font-size: clamp(1.35rem, 2vw, 1.75rem); letter-spacing: -0.024em;
  line-height: 1.18; margin: 0 0 0.9rem; max-width: 24ch;
}
.method__lead {
  font-size: clamp(1.1875rem, 1.5vw, 1.375rem) !important;
  font-weight: 500; color: var(--ink) !important; line-height: 1.42 !important;
  margin: 0 0 0.85rem !important; max-width: 44ch; letter-spacing: -0.012em;
}
.method__row .method__body p:last-child { margin-bottom: 0; }
.method__no { transition: color 0.4s ease, opacity 0.4s ease; opacity: 0.32; }
.method__row.is-live .method__no { opacity: 1; }
.method__row::before {
  content: ''; position: absolute; left: 0; top: -1px; height: 2px; width: 0;
  background: var(--gold); transition: width 0.7s var(--ease);
}
.method__row.is-live::before { width: 4.5rem; }
@media (prefers-reduced-motion: reduce) {
  .method__no { opacity: 1; }
  .method__row::before { display: none; }
}

/* ---- 6. Capabilities: numerals and a readable inventory ---- */
.disc__row { position: relative; align-items: start; }
@media (min-width: 900px) {
  .disc__row { grid-template-columns: 4.5rem minmax(0, 16rem) minmax(0, 1fr); gap: clamp(1.5rem, 3vw, 3rem); }
}
.disc__no {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.2em;
  color: var(--gold-lift); font-variant-numeric: tabular-nums;
  margin: 0; padding-top: 0.4rem; opacity: 0.75;
}
.disc__name {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem); letter-spacing: -0.022em; line-height: 1.2;
  transition: color 0.3s ease;
}
.disc__items {
  display: grid; grid-template-columns: 1fr; gap: 0.55rem 2.5rem;
  max-width: none;
}
@media (min-width: 620px) { .disc__items { grid-template-columns: 1fr 1fr; } }
.disc__items li {
  font-size: var(--copy-sm); line-height: 1.45;
  position: relative; padding-left: 1.3rem;
}
.sec--dark .disc__items li { color: rgba(244, 242, 237, 0.78); }
.disc__items li::before {
  content: ''; position: absolute; left: 0; top: 0.72em;
  width: 0.6rem; height: 1px; background: var(--gold-lift); opacity: 0.85;
}
.disc__items li:not(:first-child)::before { content: ''; margin: 0; }
.disc__row::after {
  content: ''; position: absolute; left: 0; bottom: -1px; height: 1px; width: 0;
  background: var(--gold-lift); transition: width 0.6s var(--ease);
}
.disc__row:hover::after { width: 100%; }
.disc__row:hover .disc__name { color: var(--gold-lift); }

/* ---- 7. Work cards ---- */
a.work__item { transition: transform 0.4s var(--ease); }
a.work__item::before {
  content: ''; position: absolute; left: 0; top: -1px; height: 2px; width: 0;
  background: var(--gold); transition: width 0.55s var(--ease);
}
a.work__item { position: relative; }
a.work__item:hover::before { width: 100%; }

/* ---- 8. Case studies: sticky labels, stronger figure ---- */
@media (min-width: 900px) {
  .cs-block__lbl { position: sticky; top: clamp(7.5rem, 14vh, 10rem); }
}
.cs-block__lbl {
  font-size: var(--text-sm); letter-spacing: 0.18em; color: var(--ink);
  font-weight: 600;
}
.cs-block__lbl::before {
  content: ''; display: block; width: 2rem; height: 2px;
  background: var(--gold); margin-bottom: 0.85rem;
}
.cs-figure { border-top-width: 2px; border-top-color: rgba(128, 108, 0, 0.4); }
.cs-figure b { font-size: clamp(2.75rem, 5.4vw, 4.25rem); }
.cs-hero h1 { font-size: clamp(2.25rem, 4.6vw, 3.75rem); }

/* ---- 9. Hero parallax ---- */
.hero__bg { will-change: transform; }

/* ---- v5.1 refinements ---- */
.hero__lock {
  display: flex; align-items: center; gap: clamp(0.9rem, 1.8vw, 1.5rem);
  margin: 0 0 clamp(1.5rem, 2.8vw, 2.25rem); flex-wrap: wrap;
}
.hero__mark { width: clamp(170px, 20vw, 258px); color: var(--paper); margin: 0; display: block; }
.hero__lockdiv { width: 1px; height: 1.15rem; background: var(--gold-lift); opacity: 0.8; }
.hero__lockp {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.26em;
  text-transform: uppercase; color: rgba(244, 242, 237, 0.62);
}
@media (max-width: 560px) {
  .hero__lockdiv { display: none; }
  .hero__lock { gap: 0.75rem; }
}

/* delivery head: the pair stays inline so the gold pipe reads vertically */
.deliv__head .pairline { display: flex; }
.deliv__head h2.pair--head { font-size: clamp(2.25rem, 4vw, 3.4rem) !important; }

/* delivery body copy a touch larger */
.method__row .method__body p { font-size: clamp(1.125rem, 1.28vw, 1.25rem); line-height: 1.6; }

/* capability inventory flows down each column, then across */
.disc__items { display: block; columns: 1; }
@media (min-width: 620px) { .disc__items { columns: 2; column-gap: clamp(1.75rem, 3vw, 3rem); } }
.disc__items li { break-inside: avoid; margin-bottom: 0.55rem; }
.disc__items li:last-child { margin-bottom: 0; }

/* ---- v5.2: sticky heads on the two-column narrative sections ---- */
@media (min-width: 1000px) {
  .thesis .split__head,
  .who .split__head { position: sticky; top: clamp(7.5rem, 14vh, 10.5rem); }
}
/* the live-row marker is a desktop rail affordance only */
@media (max-width: 999px) {
  .method__row::before { display: none; }
}

/* ---- v5.3 ---- */
@media (max-width: 700px) {
  .hero__lock .hero__mark, .hero__lockdiv { display: none; }
}
.cs-figure span { font-size: var(--text-sm); letter-spacing: 0.16em; max-width: 26ch; }

/* if script never runs, nothing stays hidden */
html:not(.js) .rv,
html:not(.js) .dash,
html:not(.js) hr.rule,
html:not(.js) .pairline .hinge { opacity: 1 !important; transform: none !important; }
html:not(.js) .intro { animation-delay: 2.5s; }
html:not(.js) .method__no { opacity: 1; }

/* ============================================================
   v6 — the pair device, the payoff, the sequence
   ============================================================ */

/* ---- the pipe reads as the mechanism, not as a stray rule ---- */
.pairline .hinge { width: 3px; margin-block: 0.06em 0.12em; }
.deliv__head h2.pair--head {
  font-size: clamp(1.75rem, 2.9vw, 2.6rem) !important;
  letter-spacing: -0.025em;
}
.deliv__head .pairline { gap: clamp(0.8rem, 1.5vw, 1.25rem); align-items: stretch; }
@media (max-width: 999px) {
  .deliv__head h2.pair--head { font-size: clamp(2rem, 6vw, 3rem) !important; }
}
@media (max-width: 760px) {
  .deliv__head .pairline { display: flex; }
  .deliv__head .pairline .hinge {
    width: 3px; height: auto; align-self: stretch; margin: 0.06em 0 0.12em;
  }
  .deliv__head h2.pair--head { font-size: clamp(1.7rem, 8.5vw, 2.4rem) !important; }
}

/* ---- the sequence: four marks, no counting ---- */
.deliv__steps {
  display: none; gap: 0.55rem;
  margin-top: clamp(2rem, 3.4vw, 2.75rem);
}
@media (min-width: 1000px) { .deliv__steps { display: flex; } }
.deliv__steps i {
  display: block; height: 2px; width: 2.5rem;
  background: var(--rule-light);
  transition: background 0.5s ease, width 0.5s var(--ease);
}
.deliv__steps i.is-on { background: var(--gold); width: 4.25rem; }

/* ---- the payoff: lifted onto its own ground ---- */
.payoff {
  margin-top: 1.75rem;
  background: #FCFBF8;
  border-top: 2px solid var(--gold);
  box-shadow: 0 1px 0 rgba(10, 10, 10, 0.05), 0 14px 34px -22px rgba(10, 10, 10, 0.3);
  padding: clamp(1.15rem, 1.7vw, 1.5rem) clamp(1.2rem, 1.9vw, 1.65rem) clamp(1.25rem, 1.9vw, 1.6rem);
}
.payoff__lbl {
  margin: 0 0 0.6rem !important;
  font-size: var(--text-xs) !important; font-weight: 600;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--gold) !important;
}
.work__item .payoff .work__result {
  margin: 0 !important;
  color: var(--ink) !important;
  font-weight: 500 !important;
  font-size: clamp(1.125rem, 1.35vw, 1.3125rem) !important;
  line-height: 1.34 !important;
  letter-spacing: -0.012em;
  border: 0 !important; padding: 0 !important;
}
@media (min-width: 900px) {
  a.work__item { display: flex; flex-direction: column; }
  a.work__item .payoff { margin-top: auto; }
}
a.work__item:hover .payoff { border-top-color: var(--ink); }
.payoff, a.work__item:hover .payoff { transition: border-color 0.35s ease; }

/* contact details: two entries, held together rather than spread */
@media (min-width: 700px) {
  .contact__grid {
    grid-template-columns: minmax(0, max-content) minmax(0, max-content);
    gap: 2.25rem clamp(4rem, 9vw, 8rem);
    justify-content: start;
  }
}

/* ---- the thesis: the claim carries the gold, the opening line steps back ---- */
.thesis__body p.thesis__lead {
  color: rgba(244, 242, 237, 0.9) !important;
  font-weight: 400 !important;
}
.thesis__body p.thesis__claim {
  color: var(--gold-lift) !important;
  font-size: clamp(1.35rem, 2.1vw, 1.85rem) !important;
  font-weight: 500 !important;
  line-height: 1.24 !important;
  letter-spacing: -0.022em;
  margin-top: clamp(2rem, 3.2vw, 2.6rem) !important;
  margin-bottom: 0 !important;
}

.thesis__claim + hr.rule { margin-top: clamp(2rem, 3.2vw, 2.6rem); }

/* the opening line of the thesis sits level with the body copy it introduces */
.thesis__body p.thesis__lead {
  font-size: var(--copy) !important;
  font-weight: 300 !important;
  line-height: 1.62 !important;
  letter-spacing: 0 !important;
  color: rgba(244, 242, 237, 0.74) !important;
  margin: 0 0 1.6rem !important;
}

/* the pair device reads as a rule between stacked words on narrow screens */
@media (max-width: 760px) {
  .pairline .hinge {
    width: 3.5rem; height: 3px; align-self: auto;
    margin: 0.44em 0 0.52em;
  }
  .deliv__head .pairline .hinge {
    width: 3px; height: auto; align-self: stretch; margin: 0.06em 0 0.12em;
  }
}

/* ============================================================
   v4 — Case study result call-out (Treatment B, open bracket)
   Desktop: the gold rule continues from the final word of the
   headline and points at the result. Narrow screens: the gold
   rule alone, no arrow.
   ============================================================ */
.cs-hero .csr { position: relative; }
.cs-hero h1.csr__head {
  font-size: clamp(1.85rem, 3.1vw, 2.85rem);
  font-weight: 600; letter-spacing: -0.035em; line-height: 1.06;
  margin: 0; max-width: none; width: clamp(18rem, 52%, 40rem);
}
.csr__head .ln { display: block; }
.csr__axis { position: relative; display: flex; align-items: center; }
.csr__last { flex: 0 1 auto; }
.csr__arrow {
  flex: 1 1 2.5rem; min-width: 2.25rem;
  margin-left: clamp(1.1rem, 2vw, 1.75rem);
  position: relative; height: 2px; background: var(--gold-lift);
}
.csr__arrow::after {
  content: ''; position: absolute; right: 0; top: 50%;
  width: 0.6rem; height: 0.6rem;
  border-top: 2px solid var(--gold-lift);
  border-right: 2px solid var(--gold-lift);
  transform: translate(1px, -50%) rotate(45deg);
}
.csr__plate {
  display: block; position: absolute; top: 50%; left: 100%;
  transform: translateY(-50%);
  margin-left: clamp(1.35rem, 2.8vw, 2.75rem);
  width: clamp(17rem, 27vw, 24rem);
  font-size: 1rem; font-weight: 400;
  letter-spacing: normal; line-height: normal;
  border-top: 2px solid var(--gold-lift);
  border-bottom: 1px solid var(--rule-dark);
  padding: clamp(1.05rem, 1.8vw, 1.45rem) 0;
}
.csr__fig {
  display: block; font-size: clamp(1.85rem, 3.4vw, 2.5rem);
  font-weight: 600; letter-spacing: -0.035em; line-height: 1;
  color: var(--paper);
}
.csr__cap {
  display: block; font-size: var(--text-xs); font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  line-height: 1.62; margin-top: 0.7rem;
  color: rgba(244, 242, 237, 0.6);
}
@media (min-width: 901px) {
  .csr__head .ln, .csr__last { white-space: nowrap; }
  .cs-hero .csr { min-height: 13.5rem; }
}
@media (max-width: 900px) {
  .cs-hero h1.csr__head { width: auto; }
  .csr__head .ln, .csr__last { display: inline; }
  .csr__axis { display: inline; }
  .csr__arrow { display: none; }
  .csr__plate {
    position: static; transform: none; margin-left: 0;
    width: auto; max-width: 34ch;
    margin-top: clamp(1.6rem, 5vw, 2.25rem);
    padding: clamp(1.1rem, 3vw, 1.35rem) 0 clamp(1.25rem, 3.4vw, 1.5rem);
  }
  .cs-hero .csr { margin-bottom: clamp(1.9rem, 6vw, 2.6rem); }
}