@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --ink: #151713;
  --ink-soft: #34372f;
  --paper: #f3f0e9;
  --paper-deep: #e7e3da;
  --lime: #d6ff61;
  --orange: #ff7959;
  --line: rgba(21, 23, 19, 0.2);
  --line-light: rgba(243, 240, 233, 0.22);
  --mono: 'DM Mono', 'SFMono-Regular', Consolas, monospace;
  --sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --display: 'Space Grotesk', 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--orange); outline-offset: 4px; }

.shell { margin: 0 auto; max-width: 1280px; padding-left: 48px; padding-right: 48px; }
.skip-link { background: var(--lime); color: var(--ink); left: 16px; padding: 8px 14px; position: absolute; top: -60px; z-index: 20; }
.skip-link:focus { top: 16px; }

.site-header { align-items: center; border-bottom: 1px solid var(--line); display: flex; height: 84px; justify-content: space-between; }
.wordmark { align-items: center; display: inline-flex; font-family: var(--display); font-size: 15px; font-weight: 600; gap: 12px; letter-spacing: -0.02em; }
.wordmark-mark { align-items: center; background: var(--ink); color: var(--lime); display: inline-flex; font-family: var(--mono); font-size: 11px; height: 30px; justify-content: center; letter-spacing: -0.1em; width: 30px; }
.main-nav { display: flex; gap: 32px; margin-left: auto; margin-right: 70px; }
.main-nav a, .header-link { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; text-transform: uppercase; }
.main-nav a { color: var(--ink-soft); transition: color 180ms ease; }
.main-nav a:hover, .header-link:hover, .site-footer a:hover { color: var(--orange); }
.language-link { color: var(--orange); font-family: var(--mono); font-size: 11px; letter-spacing: .04em; margin-left: 18px; text-transform: uppercase; }
.language-link:hover { color: var(--ink); }
.header-link { align-items: center; display: flex; gap: 7px; }
.header-link span { color: var(--orange); font-size: 16px; }

.hero { display: grid; gap: 70px; grid-template-columns: minmax(0, 1.03fr) minmax(400px, .97fr); min-height: 650px; padding-bottom: 92px; padding-top: 96px; }
.eyebrow, .contact-kicker, .editable-label { font-family: var(--mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { align-items: center; display: flex; gap: 10px; margin: 0 0 36px; }
.status-dot { background: var(--orange); border-radius: 50%; display: inline-block; height: 8px; width: 8px; }
.hero h1 { font-family: var(--display); font-size: clamp(4rem, 8vw, 7.4rem); font-weight: 500; letter-spacing: -0.095em; line-height: .87; margin: 0; max-width: 750px; }
h1 em, h2 em { color: var(--orange); font-style: normal; }
.hero-intro { color: var(--ink-soft); font-size: 20px; line-height: 1.4; margin: 45px 0 32px; max-width: 510px; }
.hero-actions { align-items: center; display: flex; flex-wrap: wrap; gap: 25px; }
.button { align-items: center; display: inline-flex; font-family: var(--mono); font-size: 11px; gap: 20px; justify-content: space-between; letter-spacing: .04em; min-width: 194px; padding: 16px 18px; text-transform: uppercase; transition: background 180ms ease, color 180ms ease, transform 180ms ease; }
.button:hover { transform: translateY(-3px); }
.button-primary { background: var(--ink); color: var(--paper); }
.button-primary:hover { background: var(--orange); color: var(--ink); }
.button span { color: var(--lime); font-size: 18px; line-height: .7; }
.button-primary:hover span { color: var(--ink); }
.text-link { border-bottom: 1px solid var(--ink); font-family: var(--mono); font-size: 11px; padding-bottom: 4px; text-transform: uppercase; }
.text-link span { color: var(--orange); font-size: 17px; margin-left: 8px; }

.hero-visual { background: var(--ink); color: var(--paper); min-height: 460px; overflow: hidden; position: relative; }
.hero-visual::before { background: linear-gradient(110deg, transparent 49.6%, rgba(214,255,97,.13) 50%, transparent 50.4%), linear-gradient(20deg, transparent 49.6%, rgba(243,240,233,.14) 50%, transparent 50.4%); background-size: 130px 130px, 90px 90px; content: ''; inset: 0; opacity: .52; position: absolute; }
.hero-visual-top, .hero-visual-bottom { color: rgba(243,240,233,.68); display: flex; font-family: var(--mono); font-size: 9px; justify-content: space-between; left: 24px; letter-spacing: .08em; position: absolute; right: 24px; text-transform: uppercase; z-index: 2; }
.hero-visual-top { top: 20px; }
.hero-visual-bottom { bottom: 20px; }
.orbit { border: 1px solid rgba(243,240,233,.42); border-radius: 50%; left: 50%; position: absolute; top: 51%; transform: translate(-50%, -50%) rotate(-24deg); }
.orbit-one { height: 315px; width: 510px; }
.orbit-two { border-color: rgba(214,255,97,.56); height: 215px; transform: translate(-50%, -50%) rotate(38deg); width: 420px; }
.orbit-three { border-color: rgba(255,121,89,.64); height: 480px; transform: translate(-50%, -50%) rotate(76deg); width: 150px; }
.visual-core { align-items: center; background: var(--lime); color: var(--ink); display: flex; flex-direction: column; height: 118px; justify-content: center; left: 50%; position: absolute; text-align: center; top: 51%; transform: translate(-50%, -50%) rotate(-8deg); width: 118px; z-index: 3; }
.visual-core span { font-size: 28px; line-height: .8; margin-bottom: 10px; }
.visual-core strong { font-family: var(--mono); font-size: 9px; font-weight: 500; letter-spacing: .08em; line-height: 1.3; text-transform: uppercase; }
.visual-node { align-items: center; background: var(--ink); border: 1px solid var(--paper); border-radius: 50%; display: flex; height: 72px; justify-content: center; position: absolute; width: 72px; z-index: 4; }
.visual-node span { font-family: var(--mono); font-size: 9px; letter-spacing: .04em; text-transform: uppercase; }
.node-a { left: 13%; top: 29%; }
.node-b { right: 9%; top: 37%; }
.node-c { bottom: 20%; left: 28%; }
html[lang="pt-BR"] .hero-visual { transform: translateX(72px); }

.signal-bar { background: var(--orange); border-bottom: 1px solid var(--ink); border-top: 1px solid var(--ink); overflow: hidden; }
.signal-track { align-items: center; display: flex; font-family: var(--mono); font-size: 11px; gap: 34px; justify-content: space-around; letter-spacing: .08em; min-width: 900px; padding: 17px 22px; text-transform: uppercase; white-space: nowrap; }
.signal-track i { font-size: 16px; font-style: normal; }

.section { padding-bottom: 150px; padding-top: 150px; }
.section-heading { margin-bottom: 72px; }
.section-heading .eyebrow, .competencies-heading .eyebrow { margin-bottom: 28px; }
h2 { font-family: var(--display); font-size: clamp(3rem, 6vw, 5.7rem); font-weight: 500; letter-spacing: -.09em; line-height: .92; margin: 0; }
h2 span { color: var(--ink-soft); }
.method { display: grid; gap: 70px; grid-template-columns: 1fr 1.25fr; }
.method .section-heading { grid-column: 1 / -1; margin-bottom: 0; }
.method-intro { padding-top: 5px; }
.method-intro p { color: var(--ink-soft); margin: 0 0 24px; max-width: 490px; }
.method-intro .large-copy { color: var(--ink); font-family: var(--display); font-size: 25px; letter-spacing: -.04em; line-height: 1.18; }
.process-list { border-top: 1px solid var(--line); grid-column: 1 / -1; list-style: none; margin: 12px 0 0; padding: 0; }
.process-step { align-items: start; border-bottom: 1px solid var(--line); display: grid; gap: 28px; grid-template-columns: 55px 1fr 32px; padding: 30px 0; }
.step-number, .competency-index { color: var(--orange); font-family: var(--mono); font-size: 11px; }
.process-step h3, .competency-item h3, .challenge-card h3 { font-family: var(--display); font-size: 24px; font-weight: 500; letter-spacing: -.04em; margin: 0 0 5px; }
.process-step p, .competency-item p, .challenge-card p { color: var(--ink-soft); margin: 0; max-width: 500px; }
.step-arrow { color: var(--orange); font-size: 21px; text-align: right; }

.publications { background: var(--paper-deep); border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); max-width: none; padding-left: max(48px, calc((100vw - 1184px) / 2)); padding-right: max(48px, calc((100vw - 1184px) / 2)); }
.publications .section-heading { margin-bottom: 58px; }
.publication-list { border-top: 1px solid var(--line); }
.publication-item { align-items: start; border-bottom: 1px solid var(--line); display: grid; gap: 26px; grid-template-columns: 120px 1fr 30px; padding: 25px 0; transition: background 180ms ease, padding 180ms ease, margin 180ms ease; }
.publication-item:hover { background: var(--lime); margin-left: -16px; margin-right: -16px; padding-left: 16px; padding-right: 16px; }
.publication-label { display: flex; flex-direction: column; font-family: var(--mono); font-size: 10px; gap: 7px; letter-spacing: .09em; text-transform: uppercase; }
.publication-label span:first-child, .publication-arrow { color: var(--orange); }
.publication-item h3 { font-family: var(--display); font-size: 28px; font-weight: 500; letter-spacing: -.05em; margin: 0 0 4px; }
.publication-item p { color: var(--ink-soft); font-family: var(--mono); font-size: 10px; letter-spacing: .06em; margin: 0; text-transform: uppercase; }
.publication-arrow { font-size: 21px; text-align: right; }

.competencies { background: var(--ink); color: var(--paper); display: grid; gap: 80px; grid-template-columns: .75fr 1.25fr; max-width: none; padding-left: max(48px, calc((100vw - 1184px) / 2)); padding-right: max(48px, calc((100vw - 1184px) / 2)); }
.competencies-heading .eyebrow { color: var(--lime); }
.competencies h2 span { color: var(--paper); }
.competencies h2 em { color: var(--lime); }
.competency-list { border-top: 1px solid var(--line-light); }
.competency-item { align-items: start; border-bottom: 1px solid var(--line-light); display: grid; gap: 26px; grid-template-columns: 22px 1fr 35px; padding: 27px 0; }
.competency-item h3 { color: var(--paper); font-size: 26px; }
.competency-item p { color: rgba(243,240,233,.68); }
.competency-index, .item-arrow { color: var(--lime); }
.item-arrow { font-size: 20px; text-align: right; }

.split-heading { align-items: end; display: flex; justify-content: space-between; }
.heading-note { color: var(--ink-soft); margin: 0 0 4px; max-width: 280px; }
.challenge-grid { display: grid; gap: 15px; grid-template-columns: repeat(3, 1fr); }
.challenge-card { display: flex; flex-direction: column; min-height: 330px; padding: 26px; transition: transform 180ms ease; }
.challenge-card:hover { transform: translateY(-5px); }
.challenge-card > span { font-family: var(--mono); font-size: 11px; margin-bottom: auto; }
.challenge-card h3 { font-size: 30px; letter-spacing: -.06em; max-width: 240px; }
.challenge-card p { margin-bottom: 20px; }
.challenge-card a { border-top: 1px solid currentColor; font-family: var(--mono); font-size: 11px; margin-top: auto; padding-top: 14px; text-transform: uppercase; }
.challenge-card-dark { background: var(--ink); color: var(--paper); }
.challenge-card-dark p { color: rgba(243,240,233,.68); }
.challenge-card-lime { background: var(--lime); }
.challenge-card-outline { border: 1px solid var(--ink); }

.contact { background: var(--orange); border-top: 1px solid var(--ink); max-width: none; padding-left: max(48px, calc((100vw - 1184px) / 2)); padding-right: max(48px, calc((100vw - 1184px) / 2)); }
.contact-kicker { align-items: center; display: flex; gap: 10px; margin-bottom: 40px; }
.contact .status-dot { background: var(--ink); }
.contact h2 { max-width: 850px; }
.contact h2 em { color: var(--paper); }
.contact-copy { font-size: 21px; line-height: 1.35; margin: 38px 0 44px; max-width: 490px; }
.contact-actions { align-items: end; display: flex; flex-wrap: wrap; gap: 45px; }
.button-large { min-width: 250px; }
.editable-contact { display: flex; flex-direction: column; gap: 9px; }
.editable-label { color: rgba(21,23,19,.68); font-size: 9px; }
.editable-contact a { border-bottom: 1px solid var(--ink); font-family: var(--mono); font-size: 12px; padding-bottom: 4px; }

.site-footer { align-items: center; display: flex; font-family: var(--mono); font-size: 10px; justify-content: space-between; letter-spacing: .05em; min-height: 80px; text-transform: uppercase; }
.site-footer a { color: var(--ink-soft); transition: color 180ms ease; }

@media (max-width: 900px) {
  .shell { padding-left: 28px; padding-right: 28px; }
  .hero { gap: 45px; grid-template-columns: 1fr; padding-bottom: 74px; padding-top: 72px; }
  .hero-visual { min-height: 410px; }
  html[lang="pt-BR"] .hero-visual { transform: none; }
  .main-nav { margin-right: 25px; }
  .competencies, .contact, .publications { padding-left: 28px; padding-right: 28px; }
  .method, .competencies { gap: 48px; grid-template-columns: 1fr; }
  .competencies { max-width: none; }
  .competencies-heading { max-width: 600px; }
}

@media (max-width: 620px) {
  .shell { padding-left: 20px; padding-right: 20px; }
  .site-header { height: auto; min-height: 70px; padding-bottom: 16px; padding-top: 16px; }
  .main-nav { display: none; }
  .header-link { margin-left: auto; }
  .hero { min-height: 0; padding-bottom: 56px; padding-top: 58px; }
  .hero h1 { font-size: clamp(3.55rem, 18vw, 6rem); }
  .hero-intro { font-size: 18px; margin-top: 32px; }
  .hero-actions { align-items: start; flex-direction: column; gap: 21px; }
  .hero-visual { min-height: 340px; }
  .orbit-one { height: 235px; width: 360px; }
  .orbit-two { height: 170px; width: 300px; }
  .orbit-three { height: 340px; width: 110px; }
  .visual-core { height: 92px; width: 92px; }
  .visual-core span { font-size: 21px; margin-bottom: 6px; }
  .visual-core strong, .visual-node span { font-size: 8px; }
  .visual-node { height: 58px; width: 58px; }
  .node-a { left: 8%; }
  .node-b { right: 7%; }
  .section { padding-bottom: 92px; padding-top: 92px; }
  .section-heading { margin-bottom: 52px; }
  .method { gap: 40px; }
  .method-intro .large-copy { font-size: 22px; }
  .process-step { gap: 15px; grid-template-columns: 33px 1fr 20px; padding: 23px 0; }
  .process-step h3, .competency-item h3 { font-size: 21px; }
  .process-step p, .competency-item p { font-size: 14px; }
  .competency-item { gap: 14px; grid-template-columns: 18px 1fr 24px; padding: 22px 0; }
  .publication-item { gap: 14px; grid-template-columns: 42px 1fr 24px; padding: 22px 0; }
  .publication-item h3 { font-size: 21px; }
  .split-heading { align-items: start; flex-direction: column; gap: 30px; }
  .challenge-grid { grid-template-columns: 1fr; }
  .challenge-card { min-height: 275px; }
  .contact-copy { font-size: 18px; }
  .contact-actions { align-items: start; flex-direction: column; gap: 34px; }
  .site-footer { align-items: start; flex-direction: column; gap: 11px; padding-bottom: 25px; padding-top: 25px; }
}

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