:root {
  --page: #fafaf7;
  --ink: #111111;
  --muted: #666666;
  --petrol: #2f5f61;
  --petrol-soft: #e8f0ef;
  --hairline: #d8d8d8;
  --white: #ffffff;
  --shell: 1180px;
  --text: 760px;
  --side: 56px;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 2px solid var(--petrol); outline-offset: 5px; }
img { display: block; max-width: 100%; height: auto; }

.skip-link {
  position: fixed; left: 12px; top: 12px; z-index: 100;
  padding: 8px 12px; background: var(--ink); color: var(--white);
  transform: translateY(-170%);
}
.skip-link:focus { transform: translateY(0); }

.shell { width: min(100% - (2 * var(--side)), var(--shell)); margin-inline: auto; }
.narrow { max-width: var(--text); margin-inline: auto; }

.site-header {
  background: var(--petrol);
  color: var(--page);
  padding: 26px 0 23px;
}
.header-inner,
.footer-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 34px;
}
.brand-wrap { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.brand { font-size: 17px; font-weight: 750; letter-spacing: .045em; text-decoration: none; }
.brand-sub { font-size: 14px; opacity: .82; }
.main-nav,
.site-footer nav {
  display: flex; align-items: baseline; gap: 10px; white-space: nowrap;
  font-size: 15px;
}
.main-nav a,
.site-footer a { text-decoration: none; }

.hero { padding-top: 108px; padding-bottom: 118px; }
.hero-kicker,
.eyebrow {
  margin: 0 0 18px;
  color: var(--petrol);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 1000px;
  margin: 0;
  font-size: clamp(42px, 5vw, 70px);
  line-height: 1.03;
  letter-spacing: -.035em;
  font-weight: 650;
}
.hero-subline {
  max-width: 900px;
  margin: 44px 0 0;
  color: var(--petrol);
  font-size: clamp(25px, 2.7vw, 34px);
  line-height: 1.27;
  letter-spacing: -.018em;
}
.hero-copy { max-width: 770px; margin-top: 42px; }
.hero-copy p { margin: 0 0 17px; }
.hero-links { margin-top: 38px; display: flex; gap: 24px; flex-wrap: wrap; }
.text-link {
  display: inline-block;
  color: var(--petrol);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
}

.section { padding: 108px 0; border-top: 1px solid var(--hairline); }
.section-soft { background: var(--petrol-soft); }
.section-dark { background: var(--petrol); color: var(--page); border-top: 0; }
.section-dark .eyebrow { color: var(--page); opacity: .72; }
.section-dark .text-link { color: var(--page); }
.section h2,
.page-title {
  margin: 0;
  max-width: 940px;
  font-size: clamp(33px, 3.6vw, 48px);
  line-height: 1.08;
  letter-spacing: -.025em;
  font-weight: 650;
}
.section-copy { max-width: var(--text); margin-top: 42px; }
.section-copy p { margin: 22px 0 0; }
.lead { font-size: 22px; line-height: 1.45; }
.statement {
  max-width: 900px;
  margin: 54px 0 0;
  color: var(--petrol);
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.32;
  letter-spacing: -.015em;
  font-weight: 650;
}
.section-dark .statement { color: var(--page); }

.research-grid {
  margin-top: 46px;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 54px;
  align-items: start;
}
.big-number {
  color: var(--petrol);
  font-size: clamp(74px, 9vw, 118px);
  line-height: .9;
  font-weight: 700;
  letter-spacing: -.055em;
}
.research-copy { max-width: 760px; }
.research-copy p { margin: 0 0 20px; }
.note { color: var(--muted); font-size: 14px; line-height: 1.5; }

.steps { margin-top: 56px; border-top: 1px solid var(--hairline); }
.step {
  display: grid;
  grid-template-columns: 72px 250px minmax(0, 1fr);
  gap: 24px;
  padding: 30px 0;
  border-bottom: 1px solid var(--hairline);
}
.step-no { color: var(--petrol); font-size: 30px; line-height: 1; font-weight: 650; }
.step h3 { margin: 0; font-size: 21px; line-height: 1.3; }
.step p { margin: 0; max-width: 650px; }

.fields {
  margin-top: 38px;
  max-width: 920px;
  color: var(--petrol);
  font-size: 18px;
  font-weight: 650;
  line-height: 1.9;
}

.paper-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: 70px;
  align-items: end;
}
.paper-meta {
  padding: 26px 28px;
  border: 1px solid rgba(250,250,247,.32);
  font-size: 14px;
}
.paper-meta strong { display: block; margin-bottom: 6px; font-size: 17px; }

.about-grid {
  display: grid;
  grid-template-columns: minmax(220px, 320px) minmax(0, 700px);
  gap: 78px;
  align-items: start;
  margin-top: 44px;
}
.about-portrait img { width: 100%; filter: grayscale(100%); }
.about-copy p { margin: 0 0 22px; }

.contact-mail {
  margin-top: 30px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.2;
  font-weight: 650;
  letter-spacing: -.02em;
}

.page-main { padding: 90px 0 120px; }
.page-lead { max-width: 830px; margin: 38px 0 0; font-size: 23px; line-height: 1.45; }
.prose { max-width: var(--text); margin-top: 60px; }
.prose h2 { margin: 58px 0 0; font-size: 28px; line-height: 1.2; }
.prose p, .prose address { margin: 22px 0 0; }
.prose address { font-style: normal; }
.legal-note, .legal-status { color: var(--muted); font-size: 14px; }

.site-footer {
  background: #e7eceb;
  padding: 30px 0 36px;
  color: var(--muted);
  border-top: 1px solid #d7dfde;
}
.footer-inner { font-size: 14px; }
.footer-inner p { margin: 0; }


.responsibility-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  max-width: 980px;
}
.responsibility-card {
  padding: 34px 36px 36px;
  border: 1px solid var(--hairline);
  background: var(--page);
}
.responsibility-card-accent {
  background: var(--petrol);
  color: var(--page);
  border-color: var(--petrol);
}
.card-kicker {
  margin: 0 0 14px;
  color: var(--petrol);
  font-size: 12px;
  line-height: 1.3;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.responsibility-card-accent .card-kicker { color: var(--page); opacity: .78; }
.responsibility-card h3 {
  margin: 0;
  font-size: 25px;
  line-height: 1.2;
  letter-spacing: -.015em;
}
.responsibility-card p:last-child {
  margin: 20px 0 0;
}

@media (max-width: 850px) {
  :root { --side: 34px; }
  .research-grid, .paper-grid, .about-grid, .responsibility-grid { grid-template-columns: 1fr; }
  .big-number { margin-bottom: 12px; }
  .step { grid-template-columns: 52px 1fr; }
  .step p { grid-column: 2; }
}

@media (max-width: 700px) {
  :root { --side: 22px; }
  body { font-size: 17px; }
  .site-header { padding: 20px 0 18px; }
  .header-inner { display: block; }
  .brand-wrap { display: block; }
  .brand-sub { display: block; margin-top: 2px; }
  .main-nav { margin-top: 13px; gap: 7px; flex-wrap: wrap; white-space: normal; }
  .hero { padding-top: 72px; padding-bottom: 82px; }
  .hero-subline { margin-top: 34px; }
  .hero-copy { margin-top: 34px; }
  .section { padding: 76px 0; }
  .section-copy { margin-top: 34px; }
  .statement { margin-top: 42px; }
  .step { grid-template-columns: 44px 1fr; gap: 12px; padding: 24px 0; }
  .step-no { font-size: 25px; }
  .step h3 { font-size: 19px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* V4 – campaign hero and reader-value section */
.hero-campaign {
  padding: 0;
  background: var(--ink);
  color: var(--page);
  border-bottom: 1px solid #2a2a2a;
}
.hero-campaign .shell { padding-top: 86px; padding-bottom: 92px; }
.hero-campaign .hero-kicker { color: var(--page); opacity: .58; margin-bottom: 34px; }
.hero-campaign h1 {
  max-width: 1120px;
  margin: 0;
  font-size: clamp(50px, 7.2vw, 102px);
  line-height: .91;
  letter-spacing: -.055em;
  font-weight: 720;
  text-transform: uppercase;
}
.hero-campaign h1 span,
.hero-campaign h1 strong { display: block; }
.hero-campaign h1 strong { color: #8fb4b1; font-weight: inherit; }
.hero-bottom {
  margin-top: 64px;
  padding-top: 30px;
  border-top: 1px solid rgba(250,250,247,.22);
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr);
  gap: 70px;
  align-items: end;
}
.hero-campaign .hero-subline {
  margin: 0;
  max-width: 760px;
  color: var(--page);
  font-size: clamp(21px, 2.1vw, 29px);
  line-height: 1.32;
}
.hero-thesis {
  margin: 0;
  color: #8fb4b1;
  font-size: 19px;
  line-height: 1.4;
  font-weight: 700;
}
.hero-campaign .hero-links { margin-top: 36px; align-items: center; }
.hero-campaign .text-link { color: var(--page); opacity: .78; }
.hero-cta {
  display: inline-block;
  padding: 13px 18px 14px;
  background: #8fb4b1;
  color: var(--ink);
  font-size: 15px;
  line-height: 1;
  font-weight: 750;
  text-decoration: none;
}
.reader-test {
  margin-top: 50px;
  display: grid;
  grid-template-columns: minmax(300px, .85fr) minmax(0, 1.15fr);
  gap: 76px;
  align-items: start;
}
.reader-test .section-copy { margin-top: 0; }
.reader-question {
  margin: 0;
  padding-left: 26px;
  border-left: 5px solid var(--petrol);
  color: var(--petrol);
  font-size: clamp(25px, 2.7vw, 34px);
  line-height: 1.25;
  letter-spacing: -.02em;
  font-weight: 700;
}
.triad {
  margin: 58px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  color: var(--petrol);
  font-weight: 700;
}
.triad span { padding: 0 9px; opacity: .45; }
@media (max-width: 850px) {
  .hero-bottom, .reader-test { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 700px) {
  .hero-campaign .shell { padding-top: 58px; padding-bottom: 66px; }
  .hero-campaign h1 { font-size: clamp(43px, 13vw, 70px); }
  .hero-bottom { margin-top: 46px; padding-top: 24px; }
  .triad span { display: none; }
  .triad { line-height: 1.8; }
}

/* V5 – product hero and consolidated subpages */
.hero-product {
  padding: 72px 0 78px;
  background: var(--page);
  overflow: hidden;
}
.hero-product-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 48px;
  align-items: center;
}
.hero-product-copy { position: relative; z-index: 2; min-width: 0; }
.hero-product .hero-kicker { margin-bottom: 24px; }
.hero-product h1 {
  max-width: 680px;
  font-size: clamp(45px, 5.15vw, 72px);
  line-height: .98;
  letter-spacing: -.045em;
  font-weight: 730;
  text-transform: uppercase;
}
.hero-product .hero-claim { display: block; }
.hero-product .hero-claim-second { margin-top: 24px; color: var(--petrol); font-weight: inherit; }
.hero-product .hero-subline {
  max-width: 650px;
  margin-top: 32px;
  color: var(--ink);
  font-size: clamp(19px, 1.65vw, 24px);
  line-height: 1.4;
}
.hero-product .hero-thesis {
  max-width: 650px;
  margin: 22px 0 0;
  color: var(--petrol);
  font-size: 17px;
  line-height: 1.45;
  font-weight: 750;
}
.hero-product .hero-links { margin-top: 30px; align-items: center; }
.hero-product .hero-cta {
  background: var(--petrol);
  color: var(--page);
}
.hero-visual { margin: 0; min-width: 0; align-self: center; }
.hero-visual img {
  width: 100%;
  border-radius: 2px;
  mix-blend-mode: multiply;
}

/* Compact content-page hero */
.hero-compact { padding: 78px 0 84px; }
.hero-compact h1 {
  max-width: 1000px;
  font-size: clamp(38px, 4.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -.03em;
}
.lede {
  max-width: 800px;
  margin: 34px 0 0;
  color: var(--petrol);
  font-size: 22px;
  line-height: 1.45;
}
.paper-actions { margin-top: 38px; display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.button {
  display: inline-block;
  padding: 13px 18px 14px;
  background: var(--petrol);
  color: var(--page);
  font-size: 15px;
  line-height: 1;
  font-weight: 750;
  text-decoration: none;
}
.main-nav a[aria-current="page"],
.site-footer a[aria-current="page"] { text-decoration: underline; text-underline-offset: .3em; }

@media (max-width: 980px) {
  .hero-product-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-product-copy { max-width: 800px; }
  .hero-visual { max-width: 860px; margin-inline: auto; }
}
@media (max-width: 700px) {
  .hero-product { padding: 56px 0 64px; }
  .hero-product h1 { font-size: clamp(40px, 12vw, 60px); }
  .hero-product .hero-subline { margin-top: 28px; }
  .hero-visual { margin-top: 6px; }
  .hero-compact { padding: 60px 0 68px; }
}