@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@400;500;600&family=Newsreader:opsz,wght@6..72,300;6..72,400;6..72,500&display=swap');

:root {
  --paper: #f2ede5;
  --paper-soft: #faf7f1;
  --paper-deep: #e8e0d3;
  --ink: #22262d;
  --ink-soft: #484d55;
  --muted: #72767c;
  --line: #d5cec2;
  --line-strong: #bdb4a6;
  --blue: #0b44b6;
  --blue-dark: #042f86;
  --blue-soft: #afc8f8;
  --rust: #b8613f;
  --night: #1c2430;
  --white: #fff;
  --max: 1240px;
  --page: min(var(--max), calc(100% - 48px));
  --serif: "Newsreader", Georgia, serif;
  --sans: "IBM Plex Sans", Arial, sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 80;
  opacity: .12;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.78' numOctaves='3' seed='8'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.28'/%3E%3C/svg%3E");
}
body.grid-on::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: .28;
  background-image: linear-gradient(to right, transparent calc(100% - 1px), rgba(34,38,45,.10) 1px);
  background-size: calc((100vw - 48px) / 12) 100%;
  mask-image: linear-gradient(to bottom, transparent 0, #000 7%, #000 93%, transparent 100%);
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--blue); color: #fff; }

.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 1000;
  background: var(--ink); color: #fff; padding: 10px 14px;
}
.skip-link:focus { top: 16px; }

.wrap { width: var(--page); margin-inline: auto; }
.section { padding: 112px 0; border-top: 1px solid var(--line); position: relative; }
.section-tight { padding: 76px 0; }
.section-dark { background: var(--night); color: var(--paper-soft); border-top: none; }
.section-blue { background: var(--blue-dark); color: #fff; border-top: none; }
.section-paper { background: var(--paper-soft); }

.eyebrow {
  margin: 0 0 20px;
  font: 500 .69rem/1.3 var(--mono);
  letter-spacing: .11em;
  text-transform: uppercase;
  color: var(--blue);
}
.section-dark .eyebrow, .section-blue .eyebrow { color: var(--blue-soft); }
.display {
  font-family: var(--serif);
  font-weight: 300;
  letter-spacing: -.038em;
  line-height: .98;
  margin: 0;
}
.display-xl { font-size: clamp(3.15rem, 5vw, 5.1rem); }
.display-lg { font-size: clamp(2.35rem, 3.7vw, 3.7rem); }
.display-md { font-size: clamp(1.95rem, 2.8vw, 2.8rem); }
.display-sm { font-size: clamp(1.5rem, 2vw, 2.15rem); line-height: 1.08; }
.lead { font-size: clamp(1.08rem, 1.45vw, 1.28rem); color: var(--ink-soft); line-height: 1.62; }
.section-dark .lead, .section-blue .lead { color: rgba(255,255,255,.74); }
.prose { color: var(--ink-soft); font-size: 1.02rem; }
.prose p { margin: 0 0 1.35em; }
.prose strong { color: var(--ink); }
.section-dark .prose, .section-blue .prose { color: rgba(255,255,255,.72); }
.section-dark .prose strong, .section-blue .prose strong { color: #fff; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 12px 20px; border: 1px solid var(--ink);
  background: var(--ink); color: #fff; font-size: .86rem; font-weight: 600;
  cursor: pointer; transition: .22s ease; border-radius: 0;
}
.btn:hover { transform: translateY(-2px); background: var(--blue); border-color: var(--blue); }
.btn-outline { background: transparent; color: var(--ink); }
.btn-outline:hover { color: #fff; }
.btn-light { background: #fff; border-color: #fff; color: var(--blue-dark); }
.btn-light:hover { background: var(--blue-soft); border-color: var(--blue-soft); color: var(--blue-dark); }
.text-link {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--ink);
  border-bottom: 1px solid currentColor; padding-bottom: 2px; transition: .2s ease;
}
.text-link:hover { color: var(--blue); gap: 12px; }
.section-dark .text-link, .section-blue .text-link { color: #fff; }

.site-header {
  position: fixed; inset: 0 0 auto; z-index: 60;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(18px) saturate(110%);
  border-bottom: 1px solid transparent;
  transition: .25s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); }
.header-inner { width: var(--page); height: 76px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { display: flex; align-items: baseline; gap: 10px; }
.wordmark strong { font-family: var(--serif); font-size: 1.42rem; font-weight: 500; letter-spacing: -.03em; }
.wordmark i { display: block; width: 8px; height: 8px; background: var(--blue); }
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a { font-size: .86rem; color: var(--ink-soft); font-weight: 500; position: relative; }
.main-nav a::after { content: ""; position: absolute; inset: auto 0 -7px; height: 1px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform .2s; }
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { transform: scaleX(1); }
.external-mark { color: var(--blue); }
.menu-toggle { display: none; border: 1px solid var(--line-strong); background: transparent; padding: 9px 11px; color: var(--ink); }

.page-main { padding-top: 76px; }
.hero { min-height: calc(100vh - 76px); padding: 80px 0 72px; display: flex; align-items: center; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; width: 640px; height: 640px; border: 1px solid rgba(11,68,182,.12); border-radius: 50%; right: -250px; top: 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.22fr) minmax(360px, .78fr); gap: clamp(44px, 8vw, 110px); align-items: center; }
.hero-copy { position: relative; z-index: 2; }
.hero-copy .lead { max-width: 760px; margin: 32px 0 34px; }
.hero-actions { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.hero-sequence { margin-top: 54px; padding-top: 22px; border-top: 1px solid var(--line); font: 500 .69rem/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.hero-sequence span { color: var(--blue); margin: 0 8px; }

.portrait-stage { min-height: 600px; position: relative; display: grid; place-items: center; }
.portrait-frame {
  width: min(100%, 440px); aspect-ratio: .78; position: relative; overflow: hidden;
  background: linear-gradient(145deg, #d8d1c5 0%, #ebe4da 52%, #c4b9aa 100%);
  border: 1px solid var(--line-strong);
}
.portrait-frame::before {
  content: "GB"; position: absolute; inset: auto auto 8% 8%;
  font: 300 clamp(6rem, 12vw, 10rem)/.8 var(--serif); letter-spacing: -.08em; color: rgba(34,38,45,.19);
}

.portrait-line { position: absolute; border: 1px solid rgba(11,68,182,.35); border-radius: 50%; }
.portrait-line.one { width: 370px; height: 370px; left: -120px; top: 60px; }
.portrait-line.two { width: 230px; height: 230px; right: -80px; bottom: 80px; }
.portrait-cross { position: absolute; width: 120px; height: 120px; right: -22px; top: 20%; }
.portrait-cross::before, .portrait-cross::after { content: ""; position: absolute; background: var(--rust); opacity: .55; }
.portrait-cross::before { width: 1px; height: 100%; left: 50%; }
.portrait-cross::after { height: 1px; width: 100%; top: 50%; }
.portrait-caption { position: absolute; left: -34px; bottom: 46px; background: var(--blue); color: #fff; padding: 18px 20px; width: 210px; font-size: .83rem; line-height: 1.45; }
.portrait-caption b { display: block; font: 500 .63rem/1.2 var(--mono); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 7px; color: var(--blue-soft); }

.thesis-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 70px; align-items: start; }
.thesis-statement { font: 300 clamp(2.35rem, 3.8vw, 4.15rem)/1.04 var(--serif); letter-spacing: -.035em; margin: 0; }
.thesis-statement em { color: var(--blue-soft); font-style: normal; }
.principles { margin: 58px 0 0; border-top: 1px solid rgba(255,255,255,.2); }
.principle { display: grid; grid-template-columns: 210px 1fr; gap: 30px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.principle strong { color: #fff; }
.principle p { margin: 0; color: rgba(255,255,255,.67); }

.section-head { display: grid; grid-template-columns: 220px 1fr; gap: 46px; margin-bottom: 64px; }
.section-head .lead { margin: 22px 0 0; max-width: 760px; }
.origin-layout { display: grid; grid-template-columns: 1fr 1.1fr; gap: 72px; align-items: start; }
.origin-map { position: relative; padding: 18px 0; }
.origin-map::before { content: ""; position: absolute; left: 10px; top: 28px; bottom: 28px; width: 1px; background: var(--line-strong); }
.origin-step { position: relative; padding: 0 0 34px 50px; }
.origin-step:last-child { padding-bottom: 0; }
.origin-step::before { content: ""; position: absolute; left: 5px; top: 8px; width: 11px; height: 11px; background: var(--paper); border: 2px solid var(--blue); }
.origin-step small { display: block; font: 500 .66rem/1.3 var(--mono); letter-spacing: .09em; text-transform: uppercase; color: var(--blue); margin-bottom: 5px; }
.origin-step h3 { margin: 0; font-family: var(--serif); font-size: 1.55rem; font-weight: 400; }
.origin-visual { min-height: 470px; border: 1px solid var(--line-strong); background: var(--paper-soft); position: relative; overflow: hidden; display: grid; place-items: center; }
.layers { width: 72%; height: 72%; position: relative; }
.layer { position: absolute; inset: 0; border: 1px solid var(--line-strong); transform: rotate(var(--r)) translate(var(--x), var(--y)); background: color-mix(in srgb, var(--paper-soft) 80%, transparent); }
.layer.l1 { --r: -8deg; --x: -16px; --y: 10px; }
.layer.l2 { --r: 3deg; --x: 10px; --y: -8px; border-color: rgba(11,68,182,.45); }
.layer.l3 { --r: 11deg; --x: 20px; --y: 18px; border-color: rgba(184,97,63,.45); }
.layer-core { position: absolute; width: 46px; height: 46px; background: var(--blue); left: 50%; top: 50%; transform: translate(-50%,-50%); box-shadow: 0 0 0 18px rgba(11,68,182,.07); }
.layer-label { position: absolute; font: 500 .63rem/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); background: var(--paper-soft); border: 1px solid var(--line); padding: 8px 10px; }
.layer-label.one { top: 12%; right: 8%; }
.layer-label.two { bottom: 13%; left: 6%; }
.layer-label.three { bottom: 8%; right: 10%; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-strong); }
.card { padding: 38px 30px 34px; min-height: 330px; border-right: 1px solid var(--line-strong); background: color-mix(in srgb, var(--paper-soft) 54%, transparent); transition: .22s ease; }
.card:last-child { border-right: 0; }
.card:hover { background: var(--paper-soft); transform: translateY(-4px); }
.card-num { display: block; font: 500 .66rem/1 var(--mono); letter-spacing: .11em; text-transform: uppercase; color: var(--blue); margin-bottom: 52px; }
.card h3 { margin: 0 0 16px; font: 400 1.7rem/1.08 var(--serif); letter-spacing: -.025em; }
.card p { margin: 0; color: var(--muted); }
.card .text-link { margin-top: 28px; }
.route-note { margin-top: 26px; padding: 24px 28px; border-left: 3px solid var(--blue); background: var(--paper-soft); display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.route-note p { margin: 0; color: var(--ink-soft); }

.timeline-chapters { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-strong); }
.chapter { position: relative; padding: 34px 26px 30px 0; border-right: 1px solid var(--line); }
.chapter + .chapter { padding-left: 26px; }
.chapter:last-child { border-right: none; }
.chapter::before { content: ""; position: absolute; top: -6px; left: 0; width: 11px; height: 11px; background: var(--blue); }
.chapter + .chapter::before { left: 26px; }
.chapter small { font: 500 .64rem/1.3 var(--mono); letter-spacing: .09em; text-transform: uppercase; color: var(--blue); }
.chapter h3 { font: 400 1.4rem/1.1 var(--serif); margin: 10px 0 13px; }
.chapter p { margin: 0; color: var(--muted); font-size: .92rem; }

.bfco-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 78px; align-items: center; }
.bfco-system { height: 400px; position: relative; border: 1px solid rgba(255,255,255,.20); overflow: hidden; }
.bfco-system::before, .bfco-system::after { content: ""; position: absolute; border: 1px solid rgba(175,200,248,.28); border-radius: 50%; }
.bfco-system::before { width: 340px; height: 340px; left: 50%; top: 50%; transform: translate(-50%,-50%); }
.bfco-system::after { width: 210px; height: 210px; left: 50%; top: 50%; transform: translate(-50%,-50%); }
.bfco-core { position: absolute; left: 50%; top: 50%; width: 54px; height: 54px; background: #fff; transform: translate(-50%,-50%); }
.bfco-tag { position: absolute; border: 1px solid rgba(255,255,255,.32); background: rgba(4,47,134,.55); padding: 10px 13px; font: 500 .64rem/1 var(--mono); letter-spacing: .09em; text-transform: uppercase; }
.bfco-tag.one { left: 13%; top: 18%; }
.bfco-tag.two { right: 12%; top: 42%; }
.bfco-tag.three { left: 21%; bottom: 15%; }

.insights-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 30px; }
.feature-story { min-height: 460px; border: 1px solid var(--line-strong); padding: 44px; display: flex; flex-direction: column; justify-content: flex-end; background: var(--paper-soft); position: relative; overflow: hidden; }
.feature-story::before { content: ""; position: absolute; width: 300px; height: 300px; border: 1px solid rgba(11,68,182,.22); border-radius: 50%; top: -120px; right: -80px; }
.story-meta { font: 500 .65rem/1.4 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
.feature-story h3 { font: 400 clamp(2rem, 3.2vw, 3.2rem)/1.04 var(--serif); letter-spacing: -.03em; margin: 18px 0 16px; max-width: 720px; }
.feature-story p { color: var(--muted); max-width: 680px; margin: 0 0 24px; }
.story-list { border-top: 1px solid var(--line-strong); }
.story-item { padding: 24px 0; border-bottom: 1px solid var(--line); }
.story-item h3 { font: 400 1.35rem/1.16 var(--serif); margin: 8px 0; }
.story-item p { font-size: .9rem; color: var(--muted); margin: 0; }


.site-footer { padding: 58px 0 28px; border-top: 1px solid var(--line); }
.footer-grid { width: var(--page); margin: auto; display: grid; grid-template-columns: 1.4fr .7fr .7fr; gap: 44px; }
.footer-title { font: 400 1.55rem/1 var(--serif); margin: 0 0 12px; }
.footer-copy { max-width: 440px; color: var(--muted); margin: 0; }
.footer-col h3 { font: 500 .67rem/1.3 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--blue); margin: 0 0 16px; }
.footer-col a { display: block; margin: 8px 0; color: var(--ink-soft); font-size: .9rem; }
.footer-bottom { width: var(--page); margin: 48px auto 0; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font: 400 .64rem/1.5 var(--mono); letter-spacing: .07em; text-transform: uppercase; color: var(--muted); }

.page-hero { padding: 112px 0 90px; border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.page-hero::after { content: ""; position: absolute; width: 420px; height: 420px; border: 1px solid rgba(11,68,182,.18); border-radius: 50%; right: -150px; top: -120px; }
.page-hero .display { max-width: 990px; }
.page-hero .lead { max-width: 780px; margin: 30px 0 0; }
.page-hero-actions { margin-top: 30px; }

.longform-grid { display: grid; grid-template-columns: 250px minmax(0, 760px); gap: 80px; }
.longform-aside { position: sticky; top: 120px; align-self: start; }
.longform-aside nav { border-top: 1px solid var(--line-strong); }
.longform-aside a { display: block; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: .82rem; color: var(--muted); }
.longform-aside a:hover { color: var(--blue); }
.longform h2 { font: 400 clamp(1.9rem, 2.6vw, 2.65rem)/1.08 var(--serif); letter-spacing: -.025em; margin: 2.2em 0 .7em; }
.longform h2:first-child { margin-top: 0; }
.longform h3 { font: 500 1.25rem/1.25 var(--serif); margin: 2em 0 .7em; }
.longform p { color: var(--ink-soft); margin: 0 0 1.35em; }
.longform blockquote { margin: 2.4em 0; padding: 25px 28px; border-left: 3px solid var(--blue); background: var(--paper-soft); font: 300 1.65rem/1.3 var(--serif); color: var(--ink); }

.career-list { border-top: 1px solid var(--line-strong); }
.career-row { display: grid; grid-template-columns: 150px 1fr; gap: 36px; padding: 30px 0; border-bottom: 1px solid var(--line); }
.career-period { font: 500 .68rem/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
.career-row h3 { margin: 0 0 9px; font: 400 1.35rem/1.15 var(--serif); }
.career-row p { margin: 0; color: var(--muted); }

.symptom-list { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line-strong); }
.symptom { padding: 25px 28px; border-bottom: 1px solid var(--line); }
.symptom:nth-child(odd) { border-right: 1px solid var(--line); }
.symptom:nth-last-child(-n+2) { border-bottom: 0; }
.symptom::before { content: ""; display: block; width: 10px; height: 10px; background: var(--blue); margin-bottom: 17px; }
.symptom p { margin: 0; color: var(--ink-soft); }

.process { border-top: 1px solid var(--line-strong); }
.process-row { display: grid; grid-template-columns: 80px 180px 1fr; gap: 30px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.process-num { font: 400 2.1rem/1 var(--serif); color: var(--blue); }
.process-row strong { color: var(--ink); }
.process-row p { margin: 0; color: var(--muted); }

.faq { border-top: 1px solid var(--line-strong); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q { width: 100%; text-align: left; border: 0; background: transparent; color: var(--ink); padding: 22px 0; display: flex; justify-content: space-between; gap: 25px; font: 500 1.05rem/1.4 var(--sans); cursor: pointer; }
.faq-q span:last-child { color: var(--blue); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .25s ease; }
.faq-a > div { overflow: hidden; }
.faq-a p { color: var(--muted); max-width: 820px; padding: 0 0 22px; margin: 0; }
.faq-item.open .faq-a { grid-template-rows: 1fr; }

.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 42px; }
.filter-btn { border: 1px solid var(--line-strong); background: transparent; padding: 9px 14px; font: 500 .66rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; cursor: pointer; }
.filter-btn.active, .filter-btn:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.archive { border-top: 1px solid var(--line-strong); }
.archive-item { display: grid; grid-template-columns: 150px 1fr 100px; gap: 32px; padding: 30px 0; border-bottom: 1px solid var(--line); align-items: start; }
.archive-item[hidden] { display: none; }
.archive-meta { font: 500 .64rem/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
.archive-item h2 { margin: 0 0 8px; font: 400 1.65rem/1.12 var(--serif); }
.archive-item p { margin: 0; color: var(--muted); }
.archive-arrow { font-size: 1.35rem; text-align: right; color: var(--blue); }

.reading-progress { position: fixed; top: 76px; left: 0; right: 0; height: 3px; z-index: 55; }
.reading-progress span { display: block; width: 0; height: 100%; background: var(--blue); }
.article-header { padding: 100px 0 70px; border-bottom: 1px solid var(--line); }
.article-meta { font: 500 .66rem/1.5 var(--mono); letter-spacing: .09em; text-transform: uppercase; color: var(--blue); }
.article-title { font: 300 clamp(2.75rem, 5vw, 4.85rem)/1.01 var(--serif); letter-spacing: -.045em; max-width: 1060px; margin: 24px 0; }
.article-deck { max-width: 800px; color: var(--ink-soft); font-size: 1.22rem; }
.article-body { width: min(730px, calc(100% - 40px)); margin: 0 auto; padding: 76px 0 110px; }
.article-body h2 { font: 400 2.3rem/1.07 var(--serif); letter-spacing: -.025em; margin: 2.1em 0 .65em; }
.article-body p { font-size: 1.08rem; color: var(--ink-soft); margin: 0 0 1.45em; }
.article-body .article-lead { font-size: 1.35rem; color: var(--ink); }
.article-body ul { color: var(--ink-soft); padding-left: 1.2em; }
.article-body li { margin-bottom: .7em; }
.article-callout { margin: 50px 0; padding: 30px; border: 1px solid var(--line-strong); background: var(--paper-soft); }
.article-callout strong { display: block; font: 400 1.65rem/1.2 var(--serif); margin-bottom: 10px; }
.article-end { margin-top: 70px; padding-top: 34px; border-top: 1px solid var(--line-strong); }
.article-end p { font: 300 2rem/1.25 var(--serif); color: var(--ink); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1020px) {
  :root { --page: min(100% - 34px, var(--max)); }
  body.grid-on::after { display: none; }
  .main-nav { position: fixed; top: 76px; left: 0; right: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: 24px 18px 30px; flex-direction: column; align-items: flex-start; transform: translateY(-130%); transition: transform .28s ease; }
  .main-nav.open { transform: none; }
  .menu-toggle { display: block; }
  .hero { min-height: auto; padding-top: 64px; }
  .hero-grid { grid-template-columns: 1fr; }
  .portrait-stage { min-height: 500px; max-width: 560px; }
  .section-head, .thesis-grid, .origin-layout, .bfco-layout, .longform-grid { grid-template-columns: 1fr; gap: 42px; }
  .section-head { margin-bottom: 48px; }
  .longform-aside { position: static; }
  .longform-aside nav { display: flex; gap: 14px; flex-wrap: wrap; border-top: 0; }
  .longform-aside a { border: 1px solid var(--line); padding: 8px 10px; }
  .cards-3 { grid-template-columns: 1fr; }
  .card { border-right: 0; border-bottom: 1px solid var(--line-strong); min-height: auto; }
  .card:last-child { border-bottom: 0; }
  .card-num { margin-bottom: 24px; }
  .timeline-chapters { grid-template-columns: 1fr 1fr; }
  .chapter:nth-child(2) { border-right: 0; }
  .chapter:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .insights-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1/-1; }
}

@media (max-width: 700px) {
  .section { padding: 82px 0; }
  .section-tight { padding: 60px 0; }
  .display-xl { font-size: clamp(2.75rem, 12vw, 4rem); }
  .display-lg { font-size: clamp(2.2rem, 10vw, 3.3rem); }
  .hero-copy .lead { margin: 26px 0; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-sequence { line-height: 2; }
  .portrait-stage { min-height: 410px; }
  .portrait-frame { width: 82%; }
  .portrait-caption { left: 0; bottom: 18px; }
  .principle { grid-template-columns: 1fr; gap: 8px; }
  .origin-visual { min-height: 360px; }
  .timeline-chapters { grid-template-columns: 1fr; }
  .chapter, .chapter + .chapter { padding: 28px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .chapter + .chapter::before { left: 0; }
  .route-note { align-items: flex-start; flex-direction: column; }
  .feature-story { min-height: 390px; padding: 30px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > :first-child { grid-column: auto; }
  .career-row, .process-row, .archive-item { grid-template-columns: 1fr; gap: 10px; }
  .archive-arrow { text-align: left; }
  .symptom-list { grid-template-columns: 1fr; }
  .symptom:nth-child(odd) { border-right: 0; }
  .symptom:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
  .symptom:last-child { border-bottom: 0; }
  .article-body { width: min(100% - 32px, 730px); }
  .article-title { font-size: clamp(2.8rem, 14vw, 4.4rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}


/* Publication readiness v2 */
.status-badge { display:inline-block; margin-top:6px; padding:4px 7px; border:1px solid var(--line-strong); color:var(--muted); font-size:.58rem; line-height:1; }
.review-note { border-left:3px solid var(--rust); background:var(--paper-soft); padding:22px 24px; margin-bottom:42px; }
.review-note strong { color:var(--ink); }
.review-note p { margin:.5em 0 0; }
.text-button,.footer-action { border:0; background:transparent; padding:0; color:inherit; font:inherit; text-decoration:underline; cursor:pointer; }
.consent { position:fixed; z-index:200; left:24px; right:24px; bottom:24px; max-width:980px; margin:auto; background:var(--paper-soft); border:1px solid var(--line-strong); box-shadow:0 24px 80px rgba(28,36,48,.18); padding:24px; display:none; grid-template-columns:1fr auto; gap:32px; align-items:end; }
.consent.show { display:grid; }
.consent h2 { margin:0 0 8px; font:400 clamp(1.5rem,2.4vw,2.2rem)/1.08 var(--serif); }
.consent p { margin:0; color:var(--muted); max-width:620px; }
.consent .eyebrow { margin-bottom:10px; }
.consent-actions { display:flex; gap:10px; flex-wrap:wrap; justify-content:flex-end; align-items:center; }
.consent-actions .btn { min-height:42px; padding:9px 14px; }
@media(max-width:720px){.consent{left:12px;right:12px;bottom:12px;grid-template-columns:1fr;gap:18px;max-height:calc(100vh - 24px);overflow:auto}.consent-actions{justify-content:flex-start}.menu-open{overflow:hidden}}

/* Repositioning and UX refinement v3 */
.hero-copy .display-xl { max-width: 880px; }
.page-hero .display-xl { max-width: 1040px; }
.page-hero .lead { max-width: 850px; }
.section-head .display-lg { max-width: 900px; }
.nav-whatsapp { border: 1px solid var(--ink); padding: 8px 12px; color: var(--ink) !important; }
.nav-whatsapp::after { display: none; }
.nav-whatsapp:hover { background: var(--ink); color: #fff !important; }
.section-cta { border-top: 0; }
.cta-whatsapp { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 60px; align-items: end; }
.cta-whatsapp .lead { max-width: 760px; margin-bottom: 0; }

.consulting-flow { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line-strong); counter-reset: flow; }
.flow-step { position: relative; padding: 38px 30px 34px; border-right: 1px solid var(--line-strong); background: color-mix(in srgb, var(--paper-soft) 50%, transparent); min-height: 300px; }
.flow-step:last-child { border-right: 0; }
.flow-step::after { content: ""; position: absolute; top: 46px; right: -7px; width: 13px; height: 13px; background: var(--blue); z-index: 2; }
.flow-step:last-child::after { display: none; }
.flow-step > span { display: block; font: 500 .66rem/1 var(--mono); color: var(--blue); letter-spacing: .1em; margin-bottom: 46px; }
.flow-step h3 { margin: 0 0 16px; font: 400 1.72rem/1.08 var(--serif); }
.flow-step p { margin: 0; color: var(--muted); }
.flow-step ul { margin: 24px 0 26px; padding-left: 1.1rem; color: var(--muted); }
.flow-step li { margin-bottom: 8px; }
.flow-step strong { display: block; padding-top: 18px; border-top: 1px solid var(--line); color: var(--ink); font-size: .88rem; }
.consulting-flow-large .flow-step { min-height: 580px; }

.discipline-system { min-height: 650px; border: 1px solid var(--line-strong); background: var(--paper-soft); position: relative; overflow: hidden; }
.discipline-orbit, .discipline-orbit span { position: absolute; left: 50%; top: 42%; transform: translate(-50%,-50%); border: 1px solid rgba(11,68,182,.2); border-radius: 50%; }
.discipline-orbit { width: 420px; height: 420px; }
.discipline-orbit span:first-child { width: 285px; height: 285px; }
.discipline-orbit span:last-child { width: 560px; height: 560px; border-style: dashed; opacity: .55; }
.discipline-core { position: absolute; left: 50%; top: 42%; transform: translate(-50%,-50%); width: 170px; height: 170px; display: grid; place-content: center; text-align: center; background: var(--blue-dark); color: #fff; padding: 22px; z-index: 3; }
.discipline-core span { font: 500 .66rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--blue-soft); margin-bottom: 12px; }
.discipline-core b { font: 400 1rem/1.35 var(--serif); }
.discipline-node { position: absolute; z-index: 4; width: 245px; min-height: 125px; text-align: left; border: 1px solid var(--line-strong); background: rgba(250,247,241,.94); color: var(--ink); padding: 20px; cursor: pointer; transition: .22s ease; }
.discipline-node small { display: block; font: 500 .62rem/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--blue); margin-bottom: 10px; }
.discipline-node strong { font: 400 1.22rem/1.15 var(--serif); }
.discipline-node:hover, .discipline-node:focus-visible, .discipline-node.active { border-color: var(--blue); background: #fff; transform: translateY(-3px); box-shadow: 0 18px 40px rgba(28,36,48,.09); outline: none; }
.node-brand { left: 6%; top: 10%; }
.node-growth { right: 6%; top: 18%; }
.node-tech { left: 12%; top: 54%; }
.discipline-detail { position: absolute; right: 7%; bottom: 8%; width: min(430px, 42%); border-top: 2px solid var(--blue); padding-top: 18px; }
.discipline-detail .eyebrow { margin-bottom: 10px; }
.discipline-detail h3 { margin: 0 0 10px; font: 400 1.62rem/1.12 var(--serif); }
.discipline-detail p:last-child { margin: 0; color: var(--muted); }

.learning-grid { display: grid; grid-template-columns: 1.4fr repeat(2, 1fr); border: 1px solid var(--line-strong); }
.learning-card { min-height: 220px; padding: 30px; border-right: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); background: color-mix(in srgb, var(--paper-soft) 55%, transparent); }
.learning-card:nth-child(3), .learning-card:last-child { border-right: 0; }
.learning-card:nth-child(n+4) { border-bottom: 0; }
.learning-card span { font: 500 .63rem/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--blue); }
.learning-card h3 { font: 400 1.55rem/1.13 var(--serif); margin: 22px 0 0; }
.learning-card p { color: var(--muted); margin: 15px 0 0; }
.learning-main { grid-row: span 2; min-height: 440px; }
.learning-main h3 { font-size: 2.1rem; }

.career-stack { --career-progress: 0%; position: relative; padding-left: 32px; }
.career-stack .career-progress { position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: var(--line); }
.career-stack .career-progress span { display: block; width: 100%; height: var(--career-progress); background: var(--blue); transition: height .12s linear; }
.career-stack .career-row { position: relative; }
.career-stack .career-row::before { content: ""; position: absolute; left: -30px; top: 37px; width: 11px; height: 11px; background: var(--paper); border: 2px solid var(--blue); }

@media (max-width: 1020px) {
  .cta-whatsapp { grid-template-columns: 1fr; align-items: start; }
  .consulting-flow { grid-template-columns: 1fr; }
  .flow-step { border-right: 0; border-bottom: 1px solid var(--line-strong); min-height: auto; }
  .flow-step:last-child { border-bottom: 0; }
  .flow-step::after { top: auto; bottom: -7px; right: 50%; transform: translateX(50%); }
  .consulting-flow-large .flow-step { min-height: auto; }
  .discipline-system { min-height: 830px; }
  .discipline-orbit { top: 38%; }
  .discipline-core { top: 38%; }
  .node-brand { left: 5%; top: 8%; }
  .node-growth { right: 5%; top: 12%; }
  .node-tech { left: 8%; top: 51%; }
  .discipline-detail { width: calc(100% - 10%); right: 5%; bottom: 6%; }
  .learning-grid { grid-template-columns: 1fr 1fr; }
  .learning-main { grid-row: auto; grid-column: 1/-1; min-height: 300px; }
  .learning-card { border-bottom: 1px solid var(--line-strong); }
  .learning-card:nth-child(odd) { border-right: 0; }
  .learning-card:last-child { border-bottom: 0; }
}

@media (max-width: 700px) {
  .nav-whatsapp { width: 100%; text-align: center; }
  .discipline-system { min-height: auto; display: grid; gap: 12px; padding: 18px; }
  .discipline-orbit { display: none; }
  .discipline-core, .discipline-node, .discipline-detail { position: static; width: 100%; transform: none; }
  .discipline-core { min-height: 150px; }
  .discipline-node { min-height: auto; }
  .discipline-node:hover, .discipline-node:focus-visible, .discipline-node.active { transform: none; }
  .discipline-detail { margin-top: 12px; }
  .learning-grid { grid-template-columns: 1fr; }
  .learning-main { grid-column: auto; min-height: auto; }
  .learning-card { min-height: auto; border-right: 0; }
  .learning-card:last-child { border-bottom: 0; }
  .cta-whatsapp .btn { width: 100%; }
}