:root {
  --paper: #f2f0e9;
  --white: #fbfaf6;
  --ink: #111110;
  --muted: #66645e;
  --line: #cbc8be;
  --lime: #b8ff1f;
  --sans: "Archivo", Arial, sans-serif;
  --serif: "Fraunces", Georgia, serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --shell: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.58 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button { color: inherit; font: inherit; }
::selection { background: var(--lime); color: var(--ink); }
.skip-link { position: fixed; z-index: 100; left: 12px; top: -80px; padding: 10px 14px; background: var(--lime); font: 600 11px/1 var(--mono); text-decoration: none; }
.skip-link:focus { top: 12px; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.section { position: relative; padding: 128px 0; border-top: 1px solid var(--line); }
.section[data-index]::before { content: attr(data-index); position: absolute; top: 35px; left: max(24px, calc((100vw - var(--shell)) / 2)); color: #8a8881; font: 500 9px/1 var(--mono); letter-spacing: .11em; }
.section-label { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 23px; color: var(--muted); font: 600 10px/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.section-label::before { content: ""; flex: none; width: 12px; height: 12px; color: var(--ink); background: linear-gradient(currentColor 0 0) center/100% 3px no-repeat,linear-gradient(currentColor 0 0) center/3px 100% no-repeat; transition: transform .25s; }
.section:hover .section-label::before { transform: rotate(45deg); }
.display { margin: 0; font-size: clamp(44px,6.2vw,86px); font-weight: 850; letter-spacing: -.065em; line-height: .94; text-wrap: balance; }
.display em { font-family: var(--serif); font-weight: 500; font-style: italic; letter-spacing: -.035em; }
.lead { max-width: 720px; margin: 28px 0 0; color: var(--muted); font-size: clamp(18px,1.5vw,21px); line-height: 1.55; }
.micro { color: var(--muted); font: 500 9px/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.site-header { position: fixed; z-index: 70; inset: 0 0 auto; height: 72px; background: rgba(242,240,233,.94); border-bottom: 1px solid var(--ink); backdrop-filter: blur(12px); }
.site-nav { height: 100%; display: flex; justify-content: space-between; align-items: center; gap: 28px; }
.brand { display: grid; grid-template-columns: auto auto; align-items: center; gap: 0 11px; text-decoration: none; }
.brand-plus { grid-row: span 2; position: relative; display: block; width: 24px; height: 24px; color: var(--lime); font-size: 0; transform-origin: center; transition: transform .35s cubic-bezier(.2,.8,.2,1),color .2s; }
.brand-plus::before, .brand-plus::after { content: ""; position: absolute; inset: 50% auto auto 50%; background: currentColor; transform: translate(-50%,-50%); }
.brand-plus::before { width: 24px; height: 7px; }
.brand-plus::after { width: 7px; height: 24px; }
.brand:hover .brand-plus, .brand-plus.multiply { transform: rotate(45deg); color: var(--lime); }
.brand strong { font-size: 14px; font-weight: 850; letter-spacing: -.025em; line-height: 1; text-transform: uppercase; }
.brand small { color: var(--muted); font: 500 8px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 18px; }
html[lang="pt-BR"] .nav-links, html[lang="fr"] .nav-links { gap: 13px; }
.nav-links > a:not(.nav-cta) { font: 600 9px/1 var(--mono); letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.nav-links > a:not(.nav-cta):hover { text-decoration: underline 2px var(--lime); text-underline-offset: 6px; }
.nav-links > .nav-linkedin { padding: 8px 10px; border: 1px solid var(--ink); background: transparent; }
.nav-links > .nav-linkedin:hover { background: var(--lime); text-decoration: none; }
.language-switcher { display: flex; align-items: center; padding: 2px; border: 1px solid var(--ink); }
.language-switcher a { min-width: 28px; padding: 6px 5px; color: var(--muted); font: 600 8px/1 var(--mono); letter-spacing: .05em; text-align: center; text-decoration: none; }
.language-switcher a:hover { color: var(--ink); }
.language-switcher a[aria-current="page"] { background: var(--lime); color: var(--ink); }
.nav-cta { padding: 12px 15px; background: var(--ink); color: var(--white); font: 600 9px/1 var(--mono); letter-spacing: .07em; text-decoration: none; text-transform: uppercase; }
.nav-cta:hover { background: var(--lime); color: var(--ink); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--ink); background: transparent; font: 600 18px/1 var(--mono); }

.hero { min-height: 860px; display: flex; align-items: center; padding: 150px 0 82px; background: var(--paper); border-top: 0; overflow: hidden; }
.hero-marks { position: absolute; inset: 90px 2vw auto 2vw; height: 70%; pointer-events: none; }
.hero-marks span { position: absolute; color: #11111013; font: 400 clamp(48px,6vw,92px)/1 var(--sans); animation: mark-float 9s ease-in-out infinite; }
.hero-marks span:nth-child(1) { top: 8%; left: 48%; }
.hero-marks span:nth-child(2) { top: 70%; left: 4%; animation-delay: -2s; }
.hero-marks span:nth-child(3) { top: 20%; right: 4%; animation-delay: -5s; }
.hero-marks span:nth-child(4) { top: 82%; right: 30%; animation-delay: -7s; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0,1.45fr) minmax(340px,.55fr); gap: 8vw; align-items: center; }
.hero h1 { max-width: 950px; font-size: clamp(64px,8.5vw,120px); }
.hero .signal-word { position: relative; isolation: isolate; white-space: nowrap; }
.hero .signal-word::after { content: ""; position: absolute; z-index: -1; left: -.02em; right: -.02em; bottom: .04em; height: .17em; background: var(--lime); transform: scaleX(0); transform-origin: left; animation: line-in .7s .35s cubic-bezier(.2,.8,.2,1) forwards; }
.hero-copy .lead { max-width: 760px; }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }
.action { display: inline-flex; justify-content: space-between; align-items: center; gap: 28px; min-height: 52px; padding: 12px 18px; border: 1px solid currentColor; font: 600 9px/1 var(--mono); letter-spacing: .08em; text-decoration: none; text-transform: uppercase; transition: background .2s,color .2s,transform .2s; }
.action::before { content: ""; flex: none; width: 13px; height: 13px; background: linear-gradient(currentColor 0 0) center/100% 4px no-repeat,linear-gradient(currentColor 0 0) center/4px 100% no-repeat; transition: transform .25s; }
.action:hover::before { transform: rotate(45deg); }
.action.primary { background: var(--ink); color: var(--white); border-color: var(--ink); }
.action:hover { background: var(--lime); color: var(--ink); border-color: var(--ink); }
.hero-foot { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 62px; padding-top: 18px; border-top: 1px solid var(--line); }
.hero-foot span { color: var(--muted); font: 500 8px/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.hero-foot strong { color: var(--ink); }

.hero-proof { position: relative; min-height: 520px; display: flex; flex-direction: column; justify-content: flex-end; padding: 34px; background: var(--ink); color: var(--white); }
.hero-proof::before { content: ""; position: absolute; inset: 20px; border-top: 1px solid #ffffff40; border-left: 1px solid #ffffff40; pointer-events: none; }
.hero-proof-client { position: absolute; top: 34px; left: 34px; color: #a5a39c; font: 500 8px/1 var(--mono); letter-spacing: .11em; text-transform: uppercase; }
.hero-proof strong { color: var(--lime); font-size: clamp(60px,6vw,92px); font-weight: 850; letter-spacing: -.075em; line-height: .82; white-space: nowrap; }
.hero-proof-unit { margin-top: 10px; font: 600 11px/1 var(--mono); letter-spacing: .12em; }
.hero-proof p { max-width: 330px; margin: 28px 0 35px; color: #b9b7b0; font-size: 14px; }
.hero-proof a { display: flex; justify-content: space-between; padding-top: 14px; border-top: 1px solid #ffffff40; font: 600 9px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; text-underline-offset: 4px; }
.hero-proof-graphic { position: absolute; top: 76px; right: 28px; width: min(46%,170px); fill: none; stroke: var(--lime); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.hero-proof-graphic path:first-child { stroke-dasharray: 240; stroke-dashoffset: 240; animation: draw-line 1.3s .55s ease forwards; }

.evidence-ledger { padding: 0; background: var(--white); border-bottom: 1px solid var(--ink); }
.evidence-ledger::before { display: none; }
.evidence-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.evidence { min-height: 156px; padding: 30px 24px; border-left: 1px solid var(--line); transition: background .2s; }
.evidence:hover { background: var(--lime); }
.evidence-value { transition: transform .25s cubic-bezier(.2,.8,.2,1); }
.evidence:hover .evidence-value { transform: translateY(-4px); }
.evidence:first-child { padding-left: 0; border-left: 0; }
.evidence-value { display: block; font-size: clamp(36px,3.7vw,56px); font-weight: 850; letter-spacing: -.065em; line-height: 1; }
.evidence-label { display: block; max-width: 180px; margin-top: 16px; color: var(--muted); font: 600 8px/1.45 var(--mono); letter-spacing: .07em; text-transform: uppercase; }

.thesis-intro { display: grid; grid-template-columns: .45fr 1.55fr; gap: 8vw; align-items: start; }
.thesis .display { max-width: 1000px; }
.thesis .display em { position: relative; }
.thesis .display em::after { content: ""; position: absolute; z-index: -1; inset: auto -.03em .04em; height: .14em; background: var(--lime); }
.operating-axis { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 94px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.axis-step { min-height: 295px; padding: 31px 30px 42px; border-left: 1px solid var(--line); }
.axis-step:first-child { border-left: 0; }
.axis-code { color: var(--muted); font: 500 8px/1 var(--mono); letter-spacing: .1em; }
.axis-step h3 { margin: 80px 0 16px; font-size: clamp(28px,3vw,41px); letter-spacing: -.045em; line-height: 1.04; }
.axis-step p { max-width: 315px; margin: 0; color: var(--muted); font-size: 14px; }

.engagements { background: var(--white); }
.engagement-head { display: grid; grid-template-columns: 1fr 1fr; gap: 8vw; align-items: start; margin-bottom: 76px; }
.engagement-head .lead { margin: 0; }
.section-head-aside { min-width: 0; }
.head-artefact { width: 100%; height: auto; margin-top: 38px; color: var(--ink); overflow: visible; }
.head-artefact path, .head-artefact rect, .head-artefact circle { vector-effect: non-scaling-stroke; }
.head-artefact text { fill: currentColor; font-family: var(--mono); }
.head-artefact .artefact-grid { fill: none; stroke: var(--line); stroke-width: 1; }
.head-artefact .artefact-line { fill: none; stroke: currentColor; stroke-width: 1.5; }
.head-artefact .artefact-ghost { fill: none; stroke: currentColor; stroke-width: 1; stroke-dasharray: 5 8; opacity: .28; }
.head-artefact .artefact-draw { stroke-dasharray: 980; stroke-dashoffset: 980; animation: artefact-draw 2.4s .25s cubic-bezier(.2,.8,.2,1) forwards; }
.head-artefact .artefact-module rect { fill: var(--white); stroke: currentColor; stroke-width: 1; }
.head-artefact .artefact-module circle, .head-artefact .artefact-module path { fill: none; stroke: currentColor; stroke-width: 1.2; }
.head-artefact .artefact-module text { font-size: 10px; font-weight: 600; letter-spacing: .12em; }
.head-artefact .artefact-operator rect { fill: var(--lime); stroke: currentColor; stroke-width: 1; }
.head-artefact .artefact-operator path, .head-artefact .artefact-plus path { fill: none; stroke: currentColor; stroke-width: 7; }
.head-artefact .artefact-operator { transform-box: fill-box; transform-origin: center; animation: artefact-turn 5s 1.2s cubic-bezier(.2,.8,.2,1) infinite; }
.head-artefact .artefact-pulse { fill: var(--lime); stroke: var(--ink); stroke-width: 1; transform-box: fill-box; transform-origin: center; animation: artefact-pulse 2.2s ease-in-out infinite; }
.head-artefact .artefact-caption { font-size: 9px; font-weight: 600; letter-spacing: .11em; }
.evidence-artefact .evidence-stamp path { fill: none; stroke: currentColor; stroke-width: 1; }
.evidence-artefact .artefact-metric { font-family: var(--sans); font-size: 46px; font-weight: 850; letter-spacing: -.06em; }
.evidence-artefact .artefact-plus { color: var(--lime); }
.engagement-list { border-top: 2px solid var(--ink); }
.engagement { display: grid; grid-template-columns: 110px minmax(260px,.75fr) 1fr 165px; gap: 34px; align-items: start; padding: 48px 0; border-bottom: 1px solid var(--ink); }
.engagement-no { color: var(--muted); font: 500 clamp(42px,5vw,70px)/.8 var(--mono); letter-spacing: -.07em; }
.engagement h3 { margin: 9px 0 0; font-size: clamp(26px,2.8vw,38px); letter-spacing: -.045em; line-height: 1.04; }
.engagement-icon { width: 54px; height: 54px; margin: 0 0 24px; fill: none; stroke: var(--ink); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; transition: transform .35s; }
.engagement:hover .engagement-icon { transform: rotate(6deg) scale(1.06); }
.engagement-copy p { margin: 0 0 22px; color: var(--muted); }
.deliverable-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 0 20px; margin: 0; padding: 0; list-style: none; }
.deliverable-list li { padding: 9px 0; border-top: 1px solid var(--line); font: 500 9px/1.35 var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.engagement-stamp { justify-self: end; width: 150px; padding-top: 13px; border-top: 3px solid var(--lime); font: 500 9px/1.5 var(--mono); letter-spacing: .05em; text-transform: uppercase; }

.case-section { background: var(--paper); }
.case-head { display: grid; grid-template-columns: .75fr 1.25fr; gap: 8vw; align-items: start; margin-bottom: 82px; }
.case-head .lead { margin: 0; }
.case-stack { counter-reset: case; border-top: 1px solid var(--ink); }
.case-file { position: relative; padding: 75px 0 82px; border-bottom: 1px solid var(--ink); counter-increment: case; }
.case-file::after { content: ""; position: absolute; right: 0; bottom: 30px; width: 28px; height: 28px; color: var(--lime); background: linear-gradient(currentColor 0 0) center/100% 8px no-repeat,linear-gradient(currentColor 0 0) center/8px 100% no-repeat; opacity: 0; transform: rotate(0); transition: opacity .2s,transform .3s; }
.case-file:hover::after { opacity: 1; transform: rotate(45deg); }
.case-file::before { content: "0" counter(case); position: absolute; top: 26px; right: 0; color: #a09e96; font: 500 9px/1 var(--mono); }
.case-top { display: grid; grid-template-columns: .45fr 1.55fr; gap: 6vw; align-items: start; }
.case-client { font: 600 11px/1.3 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.case-client span { display: block; margin-top: 9px; color: var(--muted); font-size: 8px; }
.case-metric { max-width: 920px; margin: 0; font-size: clamp(48px,6.8vw,92px); font-weight: 850; letter-spacing: -.07em; line-height: .9; }
.case-metric strong { font-weight: inherit; }
.case-file:first-child .case-metric strong { background: linear-gradient(transparent 70%,var(--lime) 70%); }
.case-detail { display: grid; grid-template-columns: repeat(3,1fr); gap: 40px; margin: 58px 0 0 32%; }
.case-detail div { padding-top: 14px; border-top: 1px solid var(--line); }
.case-detail dt { margin-bottom: 11px; font: 600 8px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.case-detail dd { margin: 0; color: var(--muted); font-size: 14px; }
.case-detail .result { border-top-color: var(--ink); }
.case-detail .result dd { color: var(--ink); font-weight: 700; }
.case-link { display: inline-block; margin: 34px 0 0 32%; font: 600 8px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; text-underline-offset: 5px; }

.about { padding: 0; background: var(--ink); color: var(--white); overflow: hidden; }
.about::before { color: #7e7c75; }
.about-grid { display: grid; grid-template-columns: minmax(350px,.75fr) minmax(0,1.25fr); gap: 8vw; align-items: stretch; }
.portrait-stage { position: relative; height: 100%; min-height: 0; margin: 0; background: var(--ink); overflow: hidden; }
.portrait-stage::after { content: ""; position: absolute; z-index: 2; top: 24px; right: 27px; width: 28px; height: 28px; color: var(--lime); background: linear-gradient(currentColor 0 0) center/100% 8px no-repeat,linear-gradient(currentColor 0 0) center/8px 100% no-repeat; transition: transform .45s cubic-bezier(.2,.8,.2,1); }
.portrait-stage:hover::after { transform: rotate(45deg); }
.portrait-stage img { position: absolute; top: 86px; right: auto; bottom: auto; left: 50%; width: auto; height: 155%; aspect-ratio: 887 / 1774; max-width: none; background: var(--ink); transform: translateX(-50%); transform-origin: center top; object-fit: contain; object-position: center top; transition: transform .7s cubic-bezier(.2,.8,.2,1); }
.portrait-stage:hover img { transform: translateX(-50%) scale(1.025); }
.about-copy { padding: 126px 0 108px; }
.about-copy .section-label { color: #9f9d95; }
.about-copy .display { font-size: clamp(46px,5.8vw,80px); }
.about-principle { margin: 48px 0; padding-left: 20px; border-left: 3px solid var(--lime); font: italic 500 clamp(23px,2.5vw,34px)/1.25 var(--serif); }
.about-copy .lead { color: #b8b5ae; }
.about-facts { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 46px; border-top: 1px solid #ffffff34; }
.about-facts div { padding: 18px 14px 0 0; }
.about-facts strong { display: block; color: var(--lime); font: 600 8px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.about-facts span { display: block; margin-top: 8px; color: #cbc8c0; font-size: 13px; }

.tools { background: var(--white); }
.tools-head { display: grid; grid-template-columns: 1fr 1fr; gap: 8vw; align-items: start; margin-bottom: 74px; }
.tools-head .lead { margin: 0; }
.instrument-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.instrument { position: relative; min-height: 475px; padding: 31px; border-left: 1px solid var(--line); text-decoration: none; }
.instrument:first-child { border-left: 0; }
.instrument:hover { background: var(--lime); }
.instrument-code { color: var(--muted); font: 500 8px/1 var(--mono); letter-spacing: .09em; }
.instrument-visual { display: grid; place-items: center; height: 210px; margin: 26px 0; }
.instrument-visual svg { width: 150px; height: 150px; }
.instrument h3 { margin: 0; font-size: clamp(24px,2.3vw,32px); letter-spacing: -.04em; line-height: 1.05; }
.instrument p { max-width: 300px; margin: 15px 0 26px; color: var(--muted); font-size: 14px; }
.instrument-action { position: absolute; left: 31px; bottom: 28px; font: 600 8px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.instrument-visual .stroke, .instrument-visual .fine, .instrument-visual .fill-lime { fill: none; stroke: var(--ink); stroke-linecap: round; stroke-linejoin: round; }
.instrument-visual .stroke, .instrument-visual .fill-lime { stroke-width: 2; stroke-dasharray: 520; stroke-dashoffset: 0; }
.instrument-visual .fine { stroke-width: 1; stroke-dasharray: 4 5; }
.instrument:hover .instrument-visual .stroke, .instrument:hover .instrument-visual .fill-lime { animation: redraw .7s ease; }
.instrument-visual .brand-board { width: 172px; height: 172px; overflow: visible; }
.brand-board .board-frame { fill: none; stroke: var(--ink); stroke-width: 1.5; }
.brand-board .board-thread { fill: none; stroke: var(--ink); stroke-width: 1; stroke-dasharray: 3 5; opacity: .42; }
.brand-board .board-note rect { fill: var(--white); stroke: var(--ink); stroke-width: 1.2; }
.brand-board .board-note circle { fill: var(--ink); stroke: none; }
.brand-board .board-note path { fill: none; stroke: var(--ink); stroke-width: 1; }
.brand-board text { fill: var(--ink); font: 600 8px/1 var(--mono); letter-spacing: .08em; }
.brand-board .board-note-value rect { fill: var(--ink); }
.brand-board .board-note-value text { fill: var(--white); }
.brand-board .board-note-value path { stroke: var(--lime); }
.brand-board .board-operator path { fill: none; stroke: var(--lime); stroke-width: 6; }
.brand-board .board-caption { font-size: 7px; letter-spacing: .1em; }
.brand-board .board-note { transform-box: fill-box; transform-origin: center; transition: transform .45s cubic-bezier(.2,.8,.2,1); }
.instrument:hover .brand-board .board-note-name { transform: translate(-3px,-3px) rotate(-2deg); }
.instrument:hover .brand-board .board-note-assets { transform: translate(3px,-2px) rotate(2deg); }
.instrument:hover .brand-board .board-note-trust { transform: translate(-2px,3px) rotate(1deg); }
.instrument:hover .brand-board .board-note-value { transform: translate(3px,3px) rotate(-2deg); }
.instrument:hover .brand-board .board-operator { transform-box: fill-box; transform-origin: center; animation: artefact-turn 1.2s cubic-bezier(.2,.8,.2,1) both; }

.research { background: var(--lime); }
.research-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 9vw; align-items: center; }
.report-object { position: relative; max-width: 430px; aspect-ratio: .72; padding: 39px; background: var(--ink); color: var(--white); }
.report-object::before { content: ""; position: absolute; inset: 15px; border: 1px solid #ffffff3a; }
.report-object small { position: relative; z-index: 1; color: var(--lime); font: 500 8px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.report-object h3 { position: relative; z-index: 1; margin: 42px 0 0; font-size: clamp(32px,3.7vw,50px); line-height: .94; letter-spacing: -.055em; }
.report-count { position: absolute; z-index: 1; left: 39px; bottom: 34px; }
.report-count strong { display: block; color: var(--lime); font-size: 76px; letter-spacing: -.08em; line-height: .84; }
.report-count span { color: #aaa79f; font: 500 8px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.research .lead { color: #31312d; }
.research .action { color: var(--ink); }
.research .action:hover { background: var(--ink); color: var(--white); }

.faq { background: var(--paper); }
.faq-grid { display: grid; grid-template-columns: .55fr 1.45fr; gap: 9vw; }
.faq-list { border-top: 2px solid var(--ink); }
details { border-bottom: 1px solid var(--line); }
summary { display: flex; justify-content: space-between; gap: 28px; padding: 24px 0; list-style: none; cursor: pointer; font-weight: 750; line-height: 1.3; }
summary::-webkit-details-marker { display: none; }
.faq-mark { flex: none; font: 500 20px/1 var(--mono); transition: transform .2s; }
details[open] .faq-mark { transform: rotate(45deg); }
details p { max-width: 760px; margin: -5px 50px 28px 0; color: var(--muted); font-size: 15px; }

.contact { min-height: 700px; display: flex; align-items: center; background: var(--ink); color: var(--white); overflow: hidden; }
.contact::before { color: #85827b; }
.contact-inner { max-width: 1080px; }
.contact .display { font-size: clamp(54px,7.8vw,108px); }
.contact .display em { color: var(--lime); }
.about .section-label::before, .contact .section-label::before { color: var(--lime); }
.contact .lead { color: #aaa79f; }
.contact .action.primary { background: var(--lime); color: var(--ink); border-color: var(--lime); }
.contact .action.secondary { color: var(--white); }
.contact-proof { display: flex; flex-wrap: wrap; gap: 12px 35px; margin-top: 62px; padding-top: 18px; border-top: 1px solid #ffffff35; color: #b5b2aa; font: 600 8px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }

.site-footer { padding: 60px 0 32px; background: #080808; color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 54px; padding-bottom: 48px; border-bottom: 1px solid #ffffff24; }
.footer-brand { display: grid; grid-template-columns: 34px auto; gap: 10px; align-items: start; width: max-content; font-size: 32px; font-weight: 900; letter-spacing: -.05em; line-height: .87; text-transform: uppercase; }
.footer-brand i { color: var(--lime); font-style: normal; font-weight: inherit; }
.footer-plus { position: relative; width: 30px; height: 30px; margin-top: 1px; color: var(--lime); font-size: 0; }
.footer-plus::before, .footer-plus::after { content: ""; position: absolute; inset: 50% auto auto 50%; background: currentColor; transform: translate(-50%,-50%); }
.footer-plus::before { width: 30px; height: 9px; }
.footer-plus::after { width: 9px; height: 30px; }

@keyframes line-in { to { transform: scaleX(1); } }
@keyframes draw-line { to { stroke-dashoffset: 0; } }
@keyframes mark-float { 0%,100% { transform: translate3d(0,0,0) rotate(0); } 50% { transform: translate3d(0,-12px,0) rotate(45deg); } }
@keyframes redraw { from { stroke-dashoffset: 520; } to { stroke-dashoffset: 0; } }
@keyframes artefact-draw { to { stroke-dashoffset: 0; } }
@keyframes artefact-turn { 0%,72%,100% { transform: rotate(0); } 82%,92% { transform: rotate(45deg); } }
@keyframes artefact-pulse { 0%,100% { opacity: .45; transform: scale(.72); transform-origin: center; } 50% { opacity: 1; transform: scale(1.25); transform-origin: center; } }

.reveal-ready { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s cubic-bezier(.2,.8,.2,1); transition-delay: var(--delay,0ms); }
.reveal-ready.revealed { opacity: 1; transform: none; }
.footer-copy { max-width: 250px; color: #88867f; font-size: 13px; }
.footer-grid h2 { margin: 0 0 18px; color: var(--lime); font: 600 8px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; }
.footer-grid li { margin: 7px 0; }
.footer-grid a { color: #aaa79f; font-size: 13px; text-decoration: none; }
.footer-grid a:hover { color: var(--white); }
.copyright { margin-top: 27px; color: #66645e; font: 500 8px/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }

@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: minmax(0,1.15fr) minmax(300px,.65fr); gap: 45px; }
  .hero h1 { font-size: clamp(58px,8.5vw,88px); }
  .hero-proof { min-height: 470px; padding: 28px; }
  .hero-proof-client { top: 28px; left: 28px; }
  .engagement { grid-template-columns: 80px 1fr 1fr; }
  .engagement-stamp { grid-column: 2 / -1; justify-self: start; }
  .case-detail, .case-link { margin-left: 20%; }
  .portrait-stage { height: 100%; min-height: 0; }
  .portrait-stage img { top: 68px; height: 155%; transform: translateX(-50%); }
  .portrait-stage:hover img { transform: translateX(-50%) scale(1.025); }
}

@media (max-width: 1120px) {
  .nav-links { position: fixed; inset: 72px 0 auto; min-height: calc(100vh - 72px); max-height: calc(100svh - 72px); overflow-y: auto; padding: 40px 22px; background: var(--paper); flex-direction: column; align-items: stretch; transform: translateX(100%); transition: transform .3s; }
  .nav-links.open { transform: none; }
  .nav-links > a:not(.nav-cta) { padding: 11px 0; font-size: 17px; }
  .nav-links > .nav-linkedin { padding: 14px; }
  .language-switcher { align-self: flex-start; margin: 8px 0 5px; }
  .language-switcher a { min-width: 46px; padding: 10px 8px; font-size: 11px; }
  .menu-toggle { display: block; }
}

@media (max-width: 840px) {
  .shell { width: min(calc(100% - 34px), var(--shell)); }
  .section { padding: 94px 0; }
  .section[data-index]::before { top: 23px; left: 17px; }
  .nav-links { position: fixed; inset: 72px 0 auto; min-height: calc(100vh - 72px); max-height: calc(100svh - 72px); overflow-y: auto; padding: 40px 22px; background: var(--paper); flex-direction: column; align-items: stretch; transform: translateX(100%); transition: transform .3s; }
  .nav-links.open { transform: none; }
  .nav-links > a:not(.nav-cta) { padding: 11px 0; font-size: 17px; }
  .language-switcher { align-self: flex-start; margin: 8px 0 5px; }
  .language-switcher a { min-width: 46px; padding: 10px 8px; font-size: 11px; }
  .menu-toggle { display: block; }
  .hero { min-height: auto; padding: 130px 0 72px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-proof { min-height: 410px; margin-top: 25px; }
  .evidence-grid { grid-template-columns: repeat(2,1fr); }
  .evidence:nth-child(3) { border-left: 0; }
  .evidence:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .thesis-intro, .engagement-head, .case-head, .tools-head, .faq-grid { grid-template-columns: 1fr; gap: 36px; }
  .head-artefact { max-width: 760px; margin-top: 28px; }
  .operating-axis { grid-template-columns: 1fr; }
  .axis-step { min-height: 220px; border-left: 0; border-top: 1px solid var(--line); }
  .axis-step:first-child { border-top: 0; }
  .axis-step h3 { margin-top: 48px; }
  .engagement { grid-template-columns: 74px 1fr; }
  .engagement-copy, .engagement-stamp { grid-column: 2; }
  .case-top { grid-template-columns: 1fr; gap: 25px; }
  .case-detail { grid-template-columns: 1fr; margin-left: 0; gap: 18px; }
  .case-link { margin-left: 0; }
  .about-grid { grid-template-columns: .72fr 1.28fr; gap: 40px; }
  .portrait-stage { height: 100%; min-height: 0; }
  .about-copy { padding: 96px 0 82px; }
  .instrument-grid { grid-template-columns: 1fr; }
  .instrument { min-height: 380px; border-left: 0; border-top: 1px solid var(--line); }
  .instrument:first-child { border-top: 0; }
  .instrument-visual { position: absolute; top: 55px; right: 35px; height: 170px; }
  .instrument h3, .instrument p { max-width: 52%; }
  .research-grid { grid-template-columns: .85fr 1.15fr; gap: 45px; }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .display { font-size: clamp(40px,12.5vw,62px); }
  .hero h1 { font-size: clamp(54px,15vw,74px); }
  .hero .signal-word { white-space: normal; }
  .action { width: 100%; }
  .hero-foot { flex-direction: column; }
  .hero-proof { min-height: 380px; }
  .hero-proof strong { font-size: 64px; }
  .evidence { min-height: 135px; padding: 23px 12px; }
  .evidence:first-child { padding-left: 0; }
  .evidence-value { font-size: 33px; }
  .evidence-label { font-size: 7px; }
  .operating-axis { margin-top: 62px; }
  .axis-step { padding: 26px 20px 34px; }
  .engagement { grid-template-columns: 1fr; gap: 23px; }
  .engagement-copy, .engagement-stamp { grid-column: auto; }
  .engagement-no { font-size: 48px; }
  .deliverable-list { grid-template-columns: 1fr; }
  .case-file { padding: 66px 0; }
  .case-metric { font-size: clamp(44px,14vw,68px); }
  .head-artefact { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .about-copy { order: 1; padding: 90px 0 25px; }
  .portrait-stage { order: 2; height: auto; min-height: min(128vw,620px); }
  .portrait-stage img { top: 0; bottom: auto; width: auto; height: 155%; transform: translateX(-50%); transform-origin: center top; object-position: center top; }
  .portrait-stage:hover img { transform: translateX(-50%) scale(1.02); }
  .about-facts { grid-template-columns: 1fr; }
  .about-facts div { padding: 14px 0; border-top: 1px solid #ffffff22; }
  .instrument { min-height: 450px; padding: 27px 22px; }
  .instrument-visual { position: static; height: 205px; margin: 24px 0; }
  .instrument h3, .instrument p { max-width: none; }
  .instrument-action { left: 22px; }
  .research-grid { grid-template-columns: 1fr; }
  .report-object { max-width: 380px; margin: 0 auto 24px; }
  .contact { min-height: 660px; }
  .footer-grid { grid-template-columns: 1fr; gap: 29px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .hero .signal-word::after { transform: scaleX(1); }
  .hero-proof-graphic path:first-child { stroke-dashoffset: 0; }
  .reveal-ready { opacity: 1; transform: none; }
}