:root {
  --paper: #f7f7f5;
  --white: #fff;
  --ink: #110e08;
  --muted: #66665f;
  --rule: #bfbfb7;
  --soft: #deded7;
  --buy: #ccff00;
  --olive: #4f7000;
  --halt: #c92e29;
  --sans: "Hanken Grotesk", Arial, sans-serif;
  --mono: "Spline Sans Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; letter-spacing: 0; }
html { background: var(--paper); color: var(--ink); scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--buy); color: var(--ink); }
a { color: inherit; text-underline-offset: 4px; }
button { color: inherit; font: inherit; }
:focus-visible { outline: 3px solid var(--halt); outline-offset: 4px; }

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  border: 1px solid var(--ink);
  background: var(--buy);
  font: 750 10px/1 var(--mono);
  text-decoration: none;
  text-transform: uppercase;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.why-head,
main,
footer {
  width: min(1440px, calc(100% - 64px));
  margin-inline: auto;
}

.why-head {
  min-height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--ink);
  font: 650 9px/1.25 var(--mono);
  text-transform: uppercase;
}
.why-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.why-brand span { padding: 6px 12px; border: 1px solid var(--ink); border-radius: 999px; background: var(--buy); }
.why-brand strong { font: 900 15px/1 var(--sans); }
.why-head > p { margin: 0; color: var(--muted); }
.why-head nav { justify-self: end; display: flex; gap: 16px; }
.why-head button { padding: 0; border: 0; border-bottom: 1px solid currentColor; background: transparent; cursor: pointer; font: 700 9px/1.4 var(--mono); text-transform: uppercase; }
.why-head button:hover { color: var(--olive); }

.reading-progress {
  position: sticky;
  z-index: 75;
  top: 0;
  width: 100%;
  height: 3px;
  overflow: hidden;
  background: transparent;
  pointer-events: none;
}
.reading-progress i { width: 0; height: 100%; display: block; background: var(--buy); box-shadow: 0 0 0 1px rgb(17 14 8 / 10%); }

.hero {
  min-height: 660px;
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(360px, .72fr);
  gap: 72px;
  align-items: end;
  padding: 86px 0 58px;
  border-bottom: 1px solid var(--ink);
}
.eyebrow,
.section-label,
.question header p,
.act-heading span,
.question-index span,
.hero-meta,
.byline {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  line-height: 1.4;
  text-transform: uppercase;
}
.eyebrow { margin: 0 0 22px; color: var(--olive); }
.hero h1 {
  max-width: 950px;
  margin: 0;
  font-size: clamp(74px, 9.4vw, 142px);
  font-weight: 900;
  letter-spacing: -.075em;
  line-height: .77;
}
.hero h1 em {
  position: relative;
  z-index: 0;
  font-style: normal;
}
.hero h1 em::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -.02em;
  bottom: .035em;
  left: -.02em;
  height: .19em;
  background: var(--buy);
}
.dek { max-width: 760px; margin: 40px 0 0; color: var(--muted); font-size: 24px; line-height: 1.45; }
.byline { margin: 26px 0 0; color: var(--ink); }
.hero-meta { margin: 30px 0 0; display: flex; flex-wrap: wrap; gap: 1px; }
.hero-meta div { min-width: 142px; padding: 12px 14px; border: 1px solid var(--rule); background: var(--white); }
.hero-meta dt { color: var(--muted); }
.hero-meta dd { margin: 5px 0 0; color: var(--ink); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.hero-actions button { min-height: 44px; padding: 0 15px; border: 1px solid var(--ink); background: var(--paper); cursor: pointer; font: 750 9px/1 var(--mono); text-transform: uppercase; }
.hero-actions button:first-child { background: var(--buy); }
.hero-actions button:hover { box-shadow: 3px 3px 0 var(--ink); transform: translate(-1px, -1px); }

.hero-object { margin: 0; align-self: center; }
.hero-object img { width: 100%; height: auto; display: block; filter: drop-shadow(16px 20px 22px rgb(17 14 8 / 16%)); transform: rotate(-3deg); }
.hero-object figcaption { margin: 20px 0 0; text-align: right; font: 700 9px/1.6 var(--mono); }

.risk-band {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  padding: 22px 24px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.risk-band strong { color: var(--buy); font: 800 10px/1.3 var(--mono); }
.risk-band p { max-width: 920px; margin: 0; color: #c4c4bd; font-size: 14px; line-height: 1.55; }
.risk-band a { min-height: 42px; display: inline-flex; align-items: center; padding: 0 14px; border: 1px solid #5d5b55; color: var(--paper); font: 700 9px/1 var(--mono); text-decoration: none; text-transform: uppercase; white-space: nowrap; }
.risk-band a:hover { border-color: var(--buy); color: var(--buy); }

.opening {
  display: grid;
  grid-template-columns: 220px minmax(0, 820px);
  gap: 54px;
  justify-content: center;
  padding: 92px 0;
  border-bottom: 1px solid var(--ink);
}
.section-label { margin: 7px 0 0; color: var(--olive); }
.opening h2 { margin: 0 0 34px; font-size: clamp(45px, 5.2vw, 74px); letter-spacing: -.05em; line-height: .98; }
.opening p:not(.section-label) { max-width: 68ch; margin: 0 0 18px; color: #34342f; font-size: 19px; line-height: 1.72; }
.opening p strong { color: var(--ink); }

.question-index {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 36px 0 0;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}
.question-index > div { min-width: 0; padding: 22px; border-right: 1px solid #484741; }
.question-index > div:last-child { border-right: 0; }
.question-index span { display: block; margin-bottom: 18px; color: var(--buy); }
.question-index a { min-height: 33px; display: block; padding: 7px 0; border-top: 1px solid #34332f; color: #c6c6bf; font: 600 10px/1.45 var(--mono); text-decoration: none; }
.question-index a:hover { color: var(--buy); }

.reading-layout {
  display: grid;
  grid-template-columns: 238px minmax(0, 920px);
  gap: 80px;
  justify-content: center;
  padding: 90px 0 0;
}
.chapter-rail { position: sticky; top: 28px; align-self: start; max-height: calc(100vh - 54px); overflow: auto; border-top: 4px solid var(--buy); }
.chapter-rail > p { margin: 0; padding: 15px 0 11px; border-bottom: 1px solid var(--ink); color: var(--muted); font: 700 8px/1.4 var(--mono); }
.chapter-rail nav { display: grid; }
.chapter-rail a { min-height: 35px; display: grid; grid-template-columns: 30px minmax(0, 1fr); align-items: center; gap: 8px; border-bottom: 1px solid var(--soft); color: var(--muted); font: 600 8px/1.3 var(--mono); text-decoration: none; }
.chapter-rail a b { font-weight: 750; }
.chapter-rail a[aria-current="location"],
.chapter-rail a:hover { color: var(--ink); }
.chapter-rail a[aria-current="location"] b { color: var(--olive); }
.chapter-rail a[aria-current="location"] span { font-weight: 800; }

.questions { min-width: 0; }
.act-heading { min-height: 170px; display: flex; flex-direction: column; justify-content: flex-end; padding: 0 0 28px; border-bottom: 8px solid var(--ink); }
.act-heading:not(:first-child) { margin-top: 82px; }
.act-heading span { color: var(--olive); }
.act-heading h2 { margin: 8px 0 0; font-size: clamp(46px, 5.8vw, 82px); letter-spacing: -.06em; line-height: .82; }

.question { scroll-margin-top: 28px; border-bottom: 1px solid var(--ink); }
.question > header { display: grid; grid-template-columns: 70px minmax(0, 1fr) 44px; gap: 22px; align-items: start; padding: 42px 0 25px; }
.question > header > span { color: var(--olive); font: 800 30px/1 var(--mono); }
.question header p { margin: 1px 0 7px; color: var(--muted); }
.question h3 { max-width: 760px; margin: 0; font-size: clamp(31px, 4vw, 50px); letter-spacing: -.045em; line-height: 1.02; }
.question [data-copy-link] { width: 44px; height: 44px; border: 1px solid var(--rule); background: var(--white); cursor: pointer; font: 800 13px/1 var(--mono); }
.question [data-copy-link]:hover { border-color: var(--ink); background: var(--buy); }
.question-risk { border-top: 6px solid var(--halt); }

.answer { padding: 0 0 50px 92px; }
.answer p { max-width: 68ch; margin: 0 0 19px; color: #363631; font-size: 18px; line-height: 1.75; }
.answer p strong { color: var(--ink); }
.answer a { text-decoration: underline; }
.answer a:hover { color: var(--olive); }
.answer .pull {
  max-width: 790px;
  margin: 34px 0;
  padding: 26px 28px;
  border-left: 8px solid var(--buy);
  background: var(--ink);
  color: var(--paper);
  font-size: clamp(28px, 3.6vw, 46px);
  font-weight: 850;
  letter-spacing: -.04em;
  line-height: 1.06;
}
.answer blockquote { max-width: 790px; margin: 32px 0 22px; padding: 30px; border: 1px solid var(--ink); background: var(--buy); }
.answer blockquote p { margin: 0; color: var(--ink); font-size: clamp(24px, 3vw, 38px); font-weight: 850; letter-spacing: -.035em; line-height: 1.22; }

.thesis-list,
.test-list { max-width: 760px; margin: 28px 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.thesis-list li,
.test-list li { position: relative; min-height: 52px; padding: 14px 10px 13px 43px; border-bottom: 1px solid var(--rule); font-size: 16px; line-height: 1.5; }
.thesis-list li::before,
.test-list li::before { content: "→"; position: absolute; top: 15px; left: 10px; color: var(--olive); font: 800 14px/1 var(--mono); }

.work-map { margin: 2px 0 54px 92px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); }
.work-map header { padding: 20px; display: flex; justify-content: space-between; gap: 24px; border-bottom: 1px solid #4b4944; }
.work-map header span { color: var(--buy); font: 750 9px/1.3 var(--mono); }
.work-map header strong { font: 750 9px/1.3 var(--mono); }
.work-map > div { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.work-map a { min-height: 112px; position: relative; display: flex; flex-direction: column; justify-content: space-between; padding: 17px; border-right: 1px solid #4b4944; border-bottom: 1px solid #4b4944; color: var(--paper); text-decoration: none; }
.work-map a:nth-child(3n) { border-right: 0; }
.work-map a:nth-last-child(-n + 3) { border-bottom: 0; }
.work-map a:hover { background: #201e19; }
.work-map a span { color: #9d9c95; font: 650 8px/1.3 var(--mono); text-transform: uppercase; }
.work-map a strong { max-width: 150px; color: var(--buy); font-size: 18px; line-height: 1.05; }
.work-map a b { position: absolute; right: 14px; bottom: 13px; color: var(--buy); font-weight: 400; }

.closing {
  margin: 110px 0 0;
  padding: 66px;
  border: 1px solid var(--ink);
  background: var(--buy);
}
.closing > p:first-child { margin: 0 0 42px; font: 800 9px/1.4 var(--mono); }
.closing h2 { max-width: 1120px; margin: 0; font-size: clamp(52px, 7.2vw, 104px); letter-spacing: -.068em; line-height: .84; }
.closing h3 { max-width: 960px; margin: 42px 0 0; font-size: clamp(28px, 3.9vw, 56px); letter-spacing: -.045em; line-height: .96; }
.closing-line { max-width: 680px; margin: 36px 0 0; font-size: 19px; }
.closing nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 54px; }
.closing nav a { min-height: 48px; display: inline-flex; align-items: center; padding: 0 18px; border: 1px solid var(--ink); background: var(--paper); font: 750 10px/1 var(--mono); text-decoration: none; text-transform: uppercase; }
.closing nav a:first-child { background: var(--ink); color: var(--paper); }
.closing nav a:hover { transform: translateY(-2px); box-shadow: 3px 3px 0 var(--ink); }

footer { display: grid; grid-template-columns: 1fr minmax(0, 660px); gap: 52px; padding: 34px 0 42px; border-top: 1px solid var(--ink); }
footer div { display: grid; gap: 7px; }
footer strong { font-size: 15px; }
footer span,
footer p { color: var(--muted); font: 650 9px/1.6 var(--mono); text-transform: uppercase; }
footer p { margin: 0; }
.share-status { position: fixed; z-index: 180; right: 18px; bottom: 18px; max-width: 320px; margin: 0; padding: 10px 13px; border: 1px solid var(--ink); background: var(--buy); font: 700 9px/1.4 var(--mono); text-transform: uppercase; transform: translateY(calc(100% + 28px)); transition: transform 180ms ease; }
.share-status.is-visible { transform: translateY(0); }
.no-script { margin: 0; padding: 11px 18px; border-top: 1px solid var(--ink); background: var(--buy); text-align: center; font: 700 9px/1.4 var(--mono); }

@media (max-width: 1080px) {
  .hero { grid-template-columns: minmax(0, 1.4fr) minmax(300px, .6fr); gap: 38px; }
  .question-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .question-index > div:nth-child(2) { border-right: 0; }
  .question-index > div:nth-child(-n + 2) { border-bottom: 1px solid #484741; }
  .reading-layout { grid-template-columns: 205px minmax(0, 1fr); gap: 46px; }
}

@media (max-width: 820px) {
  .why-head,
  main,
  footer { width: min(100% - 34px, 1440px); }
  .why-head { min-height: 60px; grid-template-columns: 1fr auto; }
  .why-head > p { display: none; }
  .why-head nav button:last-child { display: none; }
  .hero { min-height: 0; grid-template-columns: 1fr; gap: 38px; padding: 58px 0 38px; }
  .hero h1 { font-size: clamp(62px, 17vw, 100px); }
  .dek { margin-top: 30px; font-size: 20px; }
  .hero-object { width: min(520px, 92%); justify-self: center; }
  .hero-object figcaption { text-align: center; }
  .risk-band { grid-template-columns: 1fr; gap: 12px; padding: 20px; }
  .risk-band a { width: fit-content; }
  .opening { grid-template-columns: 1fr; gap: 20px; padding: 64px 0; }
  .opening h2 { font-size: 48px; }
  .reading-layout { grid-template-columns: 1fr; padding-top: 62px; }
  .chapter-rail { display: none; }
  .question > header { grid-template-columns: 52px minmax(0, 1fr) 44px; gap: 14px; }
  .question > header > span { font-size: 22px; }
  .answer { padding-left: 66px; }
  .work-map { margin-left: 66px; }
  .closing { margin-top: 72px; padding: 44px 34px; }
  footer { grid-template-columns: 1fr; gap: 22px; }
}

@media (max-width: 560px) {
  .why-head nav { gap: 10px; }
  .why-head nav button { min-height: 44px; }
  .hero { padding-top: 46px; }
  .hero h1 { font-size: clamp(56px, 18vw, 82px); }
  .hero-meta { display: grid; grid-template-columns: 1fr; }
  .hero-meta div { min-height: 44px; display: grid; grid-template-columns: 90px 1fr; align-items: center; gap: 12px; }
  .hero-meta dd { margin: 0; }
  .question-index { grid-template-columns: 1fr; }
  .question-index > div { border-right: 0; border-bottom: 1px solid #484741; }
  .question-index > div:last-child { border-bottom: 0; }
  .question-index a { min-height: 44px; display: flex; align-items: center; }
  .act-heading { min-height: 130px; }
  .act-heading h2 { font-size: 46px; }
  .question > header { grid-template-columns: 40px minmax(0, 1fr) 44px; gap: 10px; padding-top: 34px; }
  .question h3 { font-size: 31px; }
  .answer { padding: 0 0 42px; }
  .answer p { font-size: 17px; }
  .answer .pull { padding: 22px; font-size: 29px; }
  .work-map { margin: 0 0 44px; }
  .work-map header { flex-direction: column; gap: 7px; }
  .work-map > div { grid-template-columns: 1fr; }
  .work-map a,
  .work-map a:nth-child(3n),
  .work-map a:nth-last-child(-n + 3) { min-height: 92px; border-right: 0; border-bottom: 1px solid #4b4944; }
  .work-map a:last-child { border-bottom: 0; }
  .closing { padding: 34px 22px; }
  .closing h2 { font-size: 48px; }
  .closing nav { display: grid; }
  .closing nav a { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .share-status { transition: none; }
  .hero-actions button:hover { transform: none; }
  .closing nav a:hover { transform: none; }
}

@media print {
  .bb-site-header,
  .why-head,
  .reading-progress,
  .question-index,
  .chapter-rail,
  .hero-actions,
  .question [data-copy-link],
  .share-status,
  .no-script,
  .closing nav { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  main, footer { width: 100%; }
  .hero { min-height: 0; grid-template-columns: 1fr 220px; padding: 24px 0; }
  .hero h1 { font-size: 62pt; }
  .hero-object { align-self: start; }
  .risk-band { border: 1px solid #000; background: #fff; color: #000; }
  .risk-band strong, .risk-band p { color: #000; }
  .opening { padding: 34px 0; }
  .reading-layout { display: block; padding-top: 20px; }
  .act-heading { min-height: 0; margin-top: 34px !important; padding: 0 0 10px; break-after: avoid; }
  .question { break-inside: avoid-page; }
  .question > header { padding-top: 22px; }
  .answer { padding-left: 0; }
  .answer .pull, .answer blockquote { border: 1px solid #000; background: #fff; color: #000; }
  .work-map { display: none; }
  .closing { margin-top: 38px; padding: 28px; background: #fff; break-before: page; }
}