@import url("https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Noto+Sans+SC:wght@300;400;500;600;700;900&family=Noto+Serif+SC:wght@600;700;900&display=swap");

:root {
  --paper: #f2efe7;
  --paper-2: #e8e3d7;
  --ink: #171815;
  --muted: #66675f;
  --line: rgba(23, 24, 21, 0.18);
  --orange: #f15a24;
  --teal: #0f8b8d;
  --blue: #3659c9;
  --lime: #b8d431;
  --white: #fffdf7;
  --mono: "DM Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "Noto Sans SC", system-ui, sans-serif;
  --serif: "Noto Serif SC", serif;
  --max: 1520px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(23, 24, 21, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 21, .035) 1px, transparent 1px),
    var(--paper);
  background-size: 32px 32px;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
strong, h1, h2, h3, h4, p { overflow-wrap: anywhere; }

.skip-link {
  position: fixed; z-index: 100; left: 10px; top: -80px;
  padding: 10px 14px; background: var(--ink); color: white;
}
.skip-link:focus { top: 10px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 99; }
.progress span { display: block; width: 0; height: 100%; background: var(--orange); }

.topbar {
  height: 68px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  gap: 24px; padding: 0 3vw; border-bottom: 1px solid var(--line);
  background: rgba(242, 239, 231, .92); backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 50;
}
.brand {
  display: flex; align-items: center; gap: 12px; text-decoration: none;
  font: 500 12px/1 var(--mono); letter-spacing: .08em;
}
.brand-mark { display: grid; place-items: center; width: 28px; height: 28px; color: var(--white); background: var(--ink); font-size: 16px; }
.topbar nav { display: flex; gap: 28px; }
.topbar nav a { position: relative; text-decoration: none; font-size: 13px; }
.topbar nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -6px; height: 2px;
  background: var(--orange); transition: right .2s;
}
.topbar nav a:hover::after { right: 0; }
.asof { justify-self: end; font: 400 11px/1 var(--mono); color: var(--muted); }

.section { max-width: var(--max); margin: 0 auto; padding: 120px 4vw; }
.eyebrow {
  margin: 0 0 22px; color: var(--orange); font: 500 11px/1.4 var(--mono);
  letter-spacing: .13em; text-transform: uppercase;
}
.section-heading { margin-bottom: 52px; }
.section-heading h2 {
  max-width: 1000px; margin: 0; font: 700 clamp(38px, 5.3vw, 78px)/1.1 var(--serif);
  letter-spacing: -.05em;
}
.section-heading.split { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, .7fr); gap: 60px; align-items: end; }
.heading-copy { margin: 0; color: var(--muted); font-size: 15px; }

.hero {
  min-height: calc(100vh - 68px); display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(450px, .95fr);
  align-items: center; gap: 7vw; padding-top: 80px; padding-bottom: 80px;
}
.hero h1 { margin: 0; font: 900 clamp(56px, 7vw, 116px)/1.02 var(--serif); letter-spacing: -.075em; }
.hero h1 em { color: var(--orange); font-style: normal; }
.hero-lede { max-width: 720px; margin: 34px 0; color: #3f403b; font-size: clamp(17px, 1.3vw, 21px); }
.hero-actions { display: flex; align-items: center; gap: 20px; margin-bottom: 50px; }
.button {
  border: 1px solid var(--ink); padding: 14px 20px; background: transparent; cursor: pointer;
  text-decoration: none; font-weight: 600; transition: transform .15s, box-shadow .15s, background .15s;
}
.button.primary { color: var(--white); background: var(--ink); box-shadow: 6px 6px 0 var(--orange); }
.button.primary:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0 var(--orange); }
.text-button { border-color: transparent; padding-inline: 4px; color: var(--muted); }
.text-button:hover { color: var(--ink); }
.hero-note { display: grid; grid-template-columns: 44px 1fr; gap: 16px; max-width: 630px; border-top: 1px solid var(--line); padding-top: 20px; }
.hero-note .note-index { font: 500 11px/1 var(--mono); color: var(--orange); }
.hero-note p { margin: 0; color: var(--muted); font-size: 13px; }
.hero-visual { position: relative; border: 1px solid var(--ink); padding: 36px; background: var(--paper-2); box-shadow: 18px 18px 0 var(--ink); transform: rotate(1.2deg); }
.visual-label { font: 500 11px/1 var(--mono); margin-bottom: 24px; letter-spacing: .08em; }
.pixel-field { height: min(56vh, 560px); display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: 1fr; gap: 5px; }
.pixel-field i { display: block; border: 1px solid rgba(23, 24, 21, .2); animation: pixel-in .5s both; animation-delay: var(--delay); }
.pixel-field .p-ink { background: var(--ink); }
.pixel-field .p-paper { background: var(--white); }
.pixel-field .p-orange { background: var(--orange); }
.pixel-field .p-teal { background: var(--teal); }
.pixel-field .p-blue { background: var(--blue); }
.pixel-field .p-lime { background: var(--lime); }
.pixel-field .s-2 { grid-column: span 2; }
.pixel-field .s-3 { grid-column: span 3; }
.capital-axis { display: flex; justify-content: space-between; margin-top: 24px; font: 500 10px/1 var(--mono); }
@keyframes pixel-in { from { opacity: 0; transform: scale(.3); } }

.scope-strip {
  max-width: none; display: grid; grid-template-columns: repeat(4, 150px) 1fr; gap: 0;
  border-block: 1px solid var(--ink); background: var(--ink); color: var(--white);
}
.scope-strip > div { display: flex; flex-direction: column; justify-content: center; min-height: 128px; padding: 20px 28px; border-right: 1px solid rgba(255,255,255,.22); }
.scope-strip strong { color: var(--lime); font: 500 36px/1 var(--mono); }
.scope-strip span { margin-top: 8px; color: rgba(255,255,255,.65); font-size: 12px; }
.scope-strip p { align-self: center; max-width: 750px; margin: 0; padding: 20px 4vw; color: rgba(255,255,255,.68); font-size: 13px; }

.thesis { padding-bottom: 80px; }
.thesis-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--ink); }
.thesis-grid article { min-height: 370px; padding: 42px; border-right: 1px solid var(--ink); position: relative; }
.thesis-grid article:last-child { border: 0; }
.thesis-grid article:nth-child(1) { background: var(--white); }
.thesis-grid article:nth-child(2) { background: #dfe8e1; }
.thesis-grid article:nth-child(3) { color: var(--white); background: var(--blue); }
.thesis-grid span { font: 500 12px/1 var(--mono); }
.thesis-grid h3 { margin: 70px 0 20px; font: 700 38px/1.1 var(--serif); }
.thesis-grid p { color: inherit; opacity: .72; }
.thesis-grid b { position: absolute; left: 42px; bottom: 36px; font-size: 13px; }
.gap-warning { display: grid; grid-template-columns: 120px 1fr; margin-top: 22px; border-left: 6px solid var(--orange); background: rgba(241,90,36,.08); padding: 22px 28px; }
.gap-warning span { font: 500 11px/1.5 var(--mono); color: var(--orange); }
.gap-warning p { margin: 0; font-size: 14px; }

.mosaic-section { max-width: none; padding-inline: 3vw; background: var(--white); border-block: 1px solid var(--ink); }
.mosaic-section .section-heading { max-width: var(--max); margin-inline: auto; }
.legend { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; font: 400 11px/1.2 var(--mono); }
.legend span { display: flex; align-items: center; gap: 8px; }
.legend i { width: 13px; height: 13px; border: 1px solid var(--ink); }
.legend .critical { background: var(--orange); }
.legend .core { background: var(--teal); }
.legend .scale { background: var(--blue); }
.legend .watch { background: var(--paper-2); }
.matrix-tools {
  max-width: var(--max); margin: 0 auto 18px; display: flex; justify-content: space-between; gap: 20px; align-items: center;
}
.stage-filter, .evidence-controls { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { border: 1px solid var(--line); background: transparent; padding: 9px 13px; cursor: pointer; font-size: 12px; }
.chip:hover, .chip.active { border-color: var(--ink); color: var(--white); background: var(--ink); }
.search-box { display: flex; align-items: center; width: min(360px, 100%); border-bottom: 1px solid var(--ink); }
.search-box input { width: 100%; border: 0; outline: 0; padding: 10px 4px; background: transparent; }
.search-box kbd { font: 400 11px/1 var(--mono); border: 1px solid var(--line); padding: 3px 6px; }
.matrix-header { max-width: var(--max); margin: auto; display: grid; grid-template-columns: .65fr repeat(3, 1fr); border: 1px solid var(--ink); border-bottom: 0; background: var(--ink); color: var(--white); }
.matrix-header span { padding: 14px 18px; border-right: 1px solid rgba(255,255,255,.25); font: 500 10px/1 var(--mono); text-transform: uppercase; }
.mosaic-grid { max-width: var(--max); margin: auto; border: 1px solid var(--ink); border-bottom: 0; }
.mosaic-row { display: grid; grid-template-columns: .65fr repeat(3, 1fr); min-height: 205px; border-bottom: 1px solid var(--ink); }
.mosaic-row.single-stage { grid-template-columns: .65fr minmax(0, 3fr); }
.mosaic-row > header {
  display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto 1fr; gap: 0 12px;
  padding: 22px; border-right: 1px solid var(--ink); background: var(--paper);
}
.mosaic-row > header span { font: 500 10px/1 var(--mono); color: var(--orange); }
.mosaic-row > header i { grid-row: 1 / 3; grid-column: 2; justify-self: end; font-style: normal; font-size: 34px; }
.mosaic-row > header h3 { grid-column: 1 / 3; align-self: end; margin: 0; font: 700 23px/1.2 var(--serif); }
.mosaic-cell {
  min-width: 0; position: relative; display: flex; flex-direction: column; align-items: flex-start;
  padding: 22px 40px 22px 22px; text-align: left; color: var(--ink); background: transparent;
  border: 0; border-right: 1px solid var(--ink); cursor: pointer; overflow: hidden;
}
.mosaic-cell:last-child { border-right: 0; }
.mosaic-cell::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 7px; background: var(--paper-2); transition: width .18s; }
.mosaic-cell:hover::before { width: 14px; }
.mosaic-cell.grade-critical::before { background: var(--orange); }
.mosaic-cell.grade-core::before { background: var(--teal); }
.mosaic-cell.grade-scale::before { background: var(--blue); }
.mosaic-cell .cell-meta { font: 500 9px/1 var(--mono); color: var(--muted); }
.mosaic-cell > i { position: absolute; right: 18px; top: 14px; font-style: normal; font-size: 22px; opacity: .18; }
.mosaic-cell strong { margin-top: 30px; max-width: 30ch; font-size: 15px; line-height: 1.55; }
.mosaic-cell small { margin-top: auto; color: var(--muted); font-size: 10px; }
.mosaic-cell .cell-arrow { position: absolute; right: 16px; bottom: 14px; opacity: 0; transform: translate(-5px, 5px); transition: .18s; }
.mosaic-cell:hover .cell-arrow { opacity: 1; transform: none; }
.empty-state { max-width: var(--max); margin: 0 auto; padding: 60px; border: 1px solid var(--ink); text-align: center; }

.dossier-tabs { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--ink); }
.dossier-tabs button {
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding: 24px 28px;
  border: 0; border-right: 1px solid var(--ink); background: var(--paper-2); cursor: pointer; text-align: left;
}
.dossier-tabs button:last-child { border: 0; }
.dossier-tabs button[aria-selected="true"] { color: var(--white); background: var(--ink); }
.dossier-tabs small { font: 400 9px/1 var(--mono); opacity: .6; }
.dossier-tabs strong { font: 700 24px/1.2 var(--serif); }
.dossier-tabs span { font-size: 12px; opacity: .65; }
.dossier-panel { border: 1px solid var(--ink); border-top: 0; background: var(--white); }
.dossier-intro { display: grid; grid-template-columns: 1fr 1.2fr; gap: 8vw; padding: 60px; border-bottom: 1px solid var(--ink); }
.dossier-intro .eyebrow { grid-column: 1 / -1; margin-bottom: 0; }
.dossier-intro h3 { margin: 0; font: 700 clamp(32px, 3.5vw, 56px)/1.15 var(--serif); }
.dossier-intro > p:last-child { margin: 0; color: var(--muted); font-size: 17px; }
.dossier-metrics { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--ink); }
.dossier-metrics div { min-height: 120px; padding: 24px; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.dossier-metrics div:nth-child(3n) { border-right: 0; }
.dossier-metrics span { display: block; color: var(--muted); font: 400 10px/1 var(--mono); }
.dossier-metrics strong { display: block; margin-top: 20px; font-size: 16px; }
.budget-frame { padding: 50px 60px; border-bottom: 1px solid var(--ink); background: var(--paper); }
.frame-title { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 20px; }
.frame-title span { font: 700 22px/1 var(--serif); }
.frame-title small { color: var(--orange); font-size: 11px; }
.budget-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--ink); }
.budget-grid article { min-height: 180px; padding: 24px; border-right: 1px solid var(--ink); }
.budget-grid article:last-child { border: 0; }
.budget-grid span { font: 400 10px/1 var(--mono); }
.budget-grid strong { display: block; margin: 30px 0 16px; color: var(--blue); font: 500 22px/1 var(--mono); }
.budget-grid p { margin: 0; color: var(--muted); font-size: 12px; }
.do-dont-grid { display: grid; grid-template-columns: 1fr 1fr; }
.do-dont-grid article { padding: 50px 60px; }
.do-list { border-right: 1px solid var(--ink); }
.do-dont-grid h4 { margin: 0 0 28px; font: 700 24px/1 var(--serif); }
.do-dont-grid ol { counter-reset: list; padding: 0; margin: 0; list-style: none; }
.do-dont-grid li { counter-increment: list; display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); font-size: 14px; }
.do-dont-grid li::before { content: "0" counter(list); font: 400 10px/2 var(--mono); color: var(--teal); }
.dont-list li::before { color: var(--orange); }
.graduation { display: grid; grid-template-columns: 140px 1fr; gap: 20px; padding: 28px 60px; color: var(--white); background: var(--blue); }
.graduation span { font: 500 10px/1.6 var(--mono); }
.graduation p { margin: 0; font-size: 14px; }

.rules-section { max-width: none; background: var(--ink); color: var(--white); }
.rules-section > * { max-width: var(--max); margin-inline: auto; }
.rules-section .heading-copy { color: rgba(255,255,255,.6); }
.rules-grid { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid rgba(255,255,255,.28); }
.rules-grid article { min-height: 320px; padding: 28px; border-right: 1px solid rgba(255,255,255,.25); border-bottom: 1px solid rgba(255,255,255,.25); }
.rules-grid article:nth-child(5n) { border-right: 0; }
.rules-grid > article > span { color: var(--lime); font: 500 11px/1 var(--mono); }
.rules-grid h3 { margin: 58px 0 18px; font: 700 23px/1.2 var(--serif); }
.rules-grid p { color: rgba(255,255,255,.65); font-size: 13px; }
.rules-grid a { display: inline-block; margin-top: 10px; color: var(--lime); font-size: 11px; text-decoration: none; }

.pioneer-list { border-top: 1px solid var(--ink); }
.pioneer-card { border-bottom: 1px solid var(--ink); }
.pioneer-card > header { display: grid; grid-template-columns: 60px 1fr 1fr; align-items: center; gap: 24px; padding: 30px 0; }
.pioneer-card > header > span { color: var(--orange); font: 500 11px/1 var(--mono); }
.pioneer-card > header h3 { margin: 0; font: 700 34px/1 var(--serif); }
.pioneer-card > header p { margin: 6px 0 0; color: var(--muted); font-size: 12px; }
.pioneer-card > header > strong { color: var(--blue); font: 500 16px/1.4 var(--mono); }
.pioneer-body { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
.pioneer-body section { padding: 38px 60px; }
.pioneer-body section:first-child { border-right: 1px solid var(--ink); }
.pioneer-body h4 { margin: 0 0 18px; font: 500 11px/1 var(--mono); color: var(--muted); }
.pioneer-body h4 small { color: var(--orange); margin-left: 8px; }
.pioneer-body p { margin: 0; font-size: 14px; }
.pioneer-sources { margin-top: 22px; }
.pioneer-sources a { display: inline-block; margin-right: 8px; padding: 4px 8px; border: 1px solid var(--line); text-decoration: none; font: 400 10px/1 var(--mono); }
.pioneer-body dl { margin: 0; }
.pioneer-body dl div { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 10px 0; border-top: 1px solid var(--line); }
.pioneer-body dt { font: 500 11px/1.8 var(--mono); }
.pioneer-body dd { margin: 0; color: var(--muted); font-size: 13px; }
.pioneer-card > footer { display: grid; grid-template-columns: 60px 1fr; gap: 24px; padding: 15px 0; color: var(--muted); font-size: 11px; }
.pioneer-card > footer span { color: var(--orange); font: 500 9px/1.8 var(--mono); }

.gates { max-width: none; background: var(--orange); }
.gates > * { max-width: var(--max); margin-inline: auto; }
.gates .eyebrow { color: var(--ink); }
.gate-flow { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--ink); }
.gate-flow article { min-height: 280px; padding: 28px; border-right: 1px solid var(--ink); position: relative; }
.gate-flow article:last-child { border: 0; }
.gate-flow article::after { content: "→"; position: absolute; right: -13px; top: 50%; z-index: 2; width: 26px; height: 26px; display: grid; place-items: center; background: var(--orange); }
.gate-flow article:last-child::after { display: none; }
.gate-flow span { font: 500 11px/1 var(--mono); }
.gate-flow h3 { margin: 70px 0 18px; font: 700 23px/1.2 var(--serif); }
.gate-flow p { font-size: 13px; }

.source-list { border-top: 1px solid var(--ink); }
.source-row { display: grid; grid-template-columns: 55px 110px 1fr 24px; align-items: center; gap: 20px; padding: 20px 12px; border-bottom: 1px solid var(--line); text-decoration: none; transition: background .15s, padding .15s; }
.source-row:hover { padding-inline: 20px; background: var(--white); }
.source-id { color: var(--orange); font: 500 10px/1 var(--mono); }
.source-date { color: var(--muted); font: 400 10px/1 var(--mono); }
.source-main strong { display: block; font-size: 14px; }
.source-main small { display: block; margin-top: 5px; color: var(--muted); font-size: 11px; }
.source-row i { font-style: normal; }

.closing { text-align: center; padding-block: 160px; }
.closing blockquote { margin: 0; font: 700 clamp(32px, 4.6vw, 68px)/1.35 var(--serif); letter-spacing: -.04em; }
.closing > p:last-child { margin-top: 38px; color: var(--muted); font: 400 11px/1 var(--mono); }
footer {
  display: flex; justify-content: space-between; align-items: center; gap: 30px;
  padding: 38px 4vw; border-top: 1px solid var(--ink); background: var(--paper-2);
}
footer strong { font: 700 17px/1 var(--serif); }
footer p { margin: 7px 0 0; color: var(--muted); font-size: 10px; }
footer > a { font: 500 11px/1 var(--mono); text-decoration: none; }

dialog {
  width: min(1050px, calc(100vw - 32px)); max-height: min(88vh, 900px); padding: 0;
  color: var(--ink); background: var(--white); border: 1px solid var(--ink); box-shadow: 16px 16px 0 rgba(23,24,21,.5);
}
dialog::backdrop { background: rgba(23,24,21,.68); backdrop-filter: blur(5px); }
.dialog-close { position: sticky; float: right; top: 14px; right: 14px; z-index: 3; width: 38px; height: 38px; border: 1px solid var(--ink); background: var(--white); cursor: pointer; font-size: 25px; line-height: 1; }
#dialogBody, .method-dialog { padding: 55px; }
.dialog-title-row { display: flex; align-items: center; gap: 18px; }
.dialog-title-row > span { font-size: 42px; color: var(--orange); }
.dialog-title-row h2, .method-dialog h2 { margin: 0; font: 700 clamp(34px, 5vw, 60px)/1.1 var(--serif); }
.dialog-summary { max-width: 760px; margin: 24px 0 40px; color: var(--muted); font-size: 18px; }
.dialog-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 50px; border-top: 1px solid var(--ink); padding-top: 36px; }
.dialog-grid h3 { margin-top: 0; font: 700 22px/1 var(--serif); }
.dialog-grid ol { counter-reset: detail; padding: 0; list-style: none; }
.dialog-grid li { counter-increment: detail; display: grid; grid-template-columns: 32px 1fr; padding: 12px 0; border-top: 1px solid var(--line); }
.dialog-grid li::before { content: "0" counter(detail); color: var(--teal); font: 400 10px/2 var(--mono); }
.dialog-grid dl { margin: 0; }
.dialog-grid dl div { margin-bottom: 22px; }
.dialog-grid dt { color: var(--muted); font: 400 10px/1 var(--mono); }
.dialog-grid dd { margin: 8px 0 0; font-size: 13px; }
.gate-box { margin-top: 30px; padding: 24px; color: var(--white); background: var(--blue); }
.gate-box span { font: 500 10px/1 var(--mono); color: var(--lime); }
.gate-box p { margin: 16px 0 0; font-size: 14px; }
.method-dialog p, .method-dialog li { color: var(--muted); }
.method-dialog ol { padding-left: 20px; }

@media (max-width: 1120px) {
  .hero { grid-template-columns: 1fr; padding-top: 90px; }
  .hero-visual { max-width: 720px; width: 90%; justify-self: center; }
  .pixel-field { height: 430px; }
  .scope-strip { grid-template-columns: repeat(4, 1fr); }
  .scope-strip p { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,.22); }
  .rules-grid { grid-template-columns: repeat(2, 1fr); }
  .rules-grid article:nth-child(5n) { border-right: 1px solid rgba(255,255,255,.25); }
  .rules-grid article:nth-child(2n) { border-right: 0; }
  .gate-flow { grid-template-columns: repeat(3, 1fr); }
  .gate-flow article:nth-child(3) { border-right: 0; }
  .gate-flow article:nth-child(3)::after { display: none; }
  .gate-flow article:nth-child(-n+3) { border-bottom: 1px solid var(--ink); }
  .budget-grid { grid-template-columns: repeat(2, 1fr); }
  .budget-grid article:nth-child(2) { border-right: 0; }
  .budget-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
}

@media (max-width: 820px) {
  .topbar { grid-template-columns: 1fr auto; }
  .topbar nav { display: none; }
  .section { padding: 84px 22px; }
  .section-heading.split { grid-template-columns: 1fr; gap: 25px; }
  .hero { padding-top: 70px; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .hero-visual { width: calc(100% - 18px); padding: 20px; box-shadow: 10px 10px 0 var(--ink); }
  .pixel-field { height: 310px; gap: 3px; }
  .scope-strip { grid-template-columns: 1fr 1fr; }
  .scope-strip > div:nth-child(2) { border-right: 0; }
  .scope-strip > div { min-height: 100px; border-bottom: 1px solid rgba(255,255,255,.22); }
  .thesis-grid { grid-template-columns: 1fr; }
  .thesis-grid article { min-height: 330px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .gap-warning { grid-template-columns: 1fr; gap: 8px; }
  .matrix-tools { flex-direction: column; align-items: stretch; }
  .matrix-header { display: none; }
  .mosaic-row, .mosaic-row.single-stage { grid-template-columns: 1fr; }
  .mosaic-row > header { min-height: 100px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .mosaic-cell { min-height: 190px; border-right: 0; border-bottom: 1px dashed var(--line); }
  .mosaic-cell:last-child { border-bottom: 0; }
  .dossier-tabs { grid-template-columns: 1fr; }
  .dossier-tabs button { border-right: 0; border-bottom: 1px solid var(--ink); }
  .dossier-intro { grid-template-columns: 1fr; gap: 20px; padding: 36px 28px; }
  .dossier-metrics { grid-template-columns: 1fr 1fr; }
  .dossier-metrics div:nth-child(3n) { border-right: 1px solid var(--ink); }
  .dossier-metrics div:nth-child(2n) { border-right: 0; }
  .budget-frame, .do-dont-grid article { padding: 36px 28px; }
  .do-dont-grid { grid-template-columns: 1fr; }
  .do-list { border-right: 0; border-bottom: 1px solid var(--ink); }
  .graduation { grid-template-columns: 1fr; padding: 28px; }
  .pioneer-card > header { grid-template-columns: 40px 1fr; }
  .pioneer-card > header > strong { grid-column: 2; }
  .pioneer-body { grid-template-columns: 1fr; }
  .pioneer-body section { padding: 30px 0; }
  .pioneer-body section:first-child { border-right: 0; border-bottom: 1px solid var(--line); }
  .gate-flow { grid-template-columns: 1fr; }
  .gate-flow article { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--ink) !important; }
  .gate-flow article::after { display: none; }
  .source-row { grid-template-columns: 45px 1fr 20px; }
  .source-date { display: none; }
  .dialog-grid { grid-template-columns: 1fr; }
  #dialogBody, .method-dialog { padding: 36px 24px; }
}

@media (max-width: 540px) {
  .brand > span:last-child { display: none; }
  .asof { font-size: 9px; }
  .hero h1 { font-size: 48px; }
  .hero-lede { font-size: 16px; }
  .pixel-field { height: 260px; grid-template-columns: repeat(8, 1fr); }
  .capital-axis { font-size: 8px; }
  .section-heading h2 { font-size: 36px; }
  .budget-grid, .dossier-metrics, .rules-grid { grid-template-columns: 1fr; }
  .budget-grid article, .dossier-metrics div, .rules-grid article { border-right: 0 !important; border-bottom: 1px solid var(--ink); }
  .frame-title { align-items: flex-start; flex-direction: column; gap: 8px; }
  .pioneer-body dl div { grid-template-columns: 1fr; gap: 5px; }
  .closing { padding-block: 100px; }
}

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