:root {
  --ink: #111111;
  --paper: #ffffff;
  --paper-soft: #f7f7f5;
  --paper-blue: #f3f6fd;
  --muted: #6f6f6f;
  --soft: #444444;
  --line: #d8d8d4;
  --ballpoint: #244aa5;
  --ballpoint-dark: #183475;
  --signal: #e4572e;
  --max: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3.25rem);
  --space: clamp(4.5rem, 9vw, 8.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
main [id] { scroll-margin-top: 7rem; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
button, a, summary { touch-action: manipulation; }
.site-shell {
  width: min(var(--max), calc(100% - (2 * var(--gutter))));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  z-index: 2000;
  top: .75rem;
  left: .75rem;
  padding: .75rem 1rem;
  background: #fff;
  border: 1px solid #111;
  transform: translateY(-160%);
}
.skip-link:focus { transform: none; }

/* Header */
.site-header {
  position: sticky;
  z-index: 1000;
  top: 0;
  background: #000;
  color: #fff;
}
.site-header::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -5px;
  left: 0;
  height: 10px;
  background: #111;
  clip-path: polygon(0 34%, 6% 28%, 13% 39%, 21% 31%, 29% 42%, 38% 30%, 47% 40%, 57% 29%, 67% 41%, 77% 31%, 87% 39%, 94% 28%, 100% 35%, 100% 66%, 92% 61%, 84% 70%, 74% 62%, 64% 71%, 54% 61%, 44% 70%, 34% 62%, 24% 71%, 14% 61%, 6% 69%, 0 64%);
  pointer-events: none;
}
.header-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.mark { display: inline-flex; flex: 0 0 auto; }
.mark img { display: block; width: auto; height: 44px; object-fit: contain; }
.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 1.8vw, 1.8rem);
}
.desktop-nav a,
.mobile-nav a {
  font-size: .73rem;
  font-weight: 700;
  letter-spacing: .055em;
  text-decoration: none;
  text-transform: uppercase;
}
.desktop-nav a:not(.nav-cta) {
  position: relative;
  padding-block: .4rem;
}
.desktop-nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .18s ease;
}
.desktop-nav a:not(.nav-cta):hover::after,
.desktop-nav a:not(.nav-cta):focus-visible::after { transform: scaleX(1); }
.nav-cta {
  padding: .95rem 1.15rem;
  background: var(--ballpoint);
  border: 1px solid var(--ballpoint);
}
.nav-cta:hover,
.nav-cta:focus-visible { background: #fff; color: #111; }
.mobile-nav { display: none; position: relative; }
.mobile-nav summary {
  width: 44px;
  height: 44px;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: .75rem;
  cursor: pointer;
  list-style: none;
}
.mobile-nav summary::-webkit-details-marker { display: none; }
.mobile-nav summary span { height: 1px; background: #fff; }
.mobile-nav nav {
  position: absolute;
  top: calc(100% + 1rem);
  right: 0;
  width: min(88vw, 340px);
  padding: 1.25rem;
  background: #000;
  border: 1px solid #444;
}
.mobile-nav nav a { display: block; padding: .8rem 0; }
.mobile-nav .nav-cta { margin-top: .75rem; padding: 1rem; text-align: center; }

/* Typography */
section { padding-block: var(--space); }
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 12ch;
  margin-bottom: 1.7rem;
  font-size: clamp(3.25rem, 6vw, 6.25rem);
  line-height: .94;
  letter-spacing: -.055em;
}
h2 {
  max-width: 18ch;
  margin-bottom: 1.25rem;
  font-size: clamp(2.15rem, 3.6vw, 3.75rem);
  line-height: 1;
  letter-spacing: -.045em;
}
h3 {
  margin-bottom: .8rem;
  font-size: clamp(1.35rem, 2vw, 1.95rem);
  line-height: 1.1;
  letter-spacing: -.03em;
}
.ink-blue { color: var(--ballpoint); }
.eyebrow,
.meta,
.footer-label,
.step-label,
.capability-label,
.response-kicker {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.lead {
  max-width: 42rem;
  margin-bottom: 1.8rem;
  color: var(--soft);
  font-size: clamp(1.15rem, 1.5vw, 1.42rem);
}
.section-copy {
  max-width: 48rem;
  color: var(--soft);
  font-size: 1.08rem;
}
.hand-note {
  width: fit-content;
  max-width: 26rem;
  margin: 1.4rem 0 0;
  font-size: .98rem;
  font-style: italic;
  line-height: 1.45;
  transform: rotate(-1deg);
}
.hand-note--blue {
  color: var(--ballpoint);
  border-bottom: 3px solid var(--ballpoint);
}
.hand-note--signal {
  color: var(--signal);
  border-bottom: 3px solid var(--signal);
}
.hero-jump {
  display: inline-block;
  font-weight: 700;
  text-decoration: none;
}

/* Shared controls */
.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .07em;
  text-decoration: none;
  text-transform: uppercase;
}
.button {
  min-height: 48px;
  padding: .95rem 1.25rem;
  border: 1px solid var(--ink);
  font-family: inherit;
  cursor: pointer;
}
.button--blue {
  background: var(--ballpoint);
  border-color: var(--ballpoint);
  color: #fff;
}
.button--blue:hover,
.button--blue:focus-visible {
  background: var(--ballpoint-dark);
  border-color: var(--ballpoint-dark);
}
.button--paper {
  background: var(--paper);
  border-color: var(--ink);
  color: var(--ink);
}
.button--paper:hover,
.button--paper:focus-visible {
  background: var(--ink);
  color: var(--paper);
}
.text-link {
  position: relative;
  gap: .55rem;
  min-height: 44px;
  padding-bottom: .32rem;
}
.text-link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: currentColor;
}
.text-link span { transition: transform .16s ease; }
.text-link:hover span { transform: translateX(.2rem); }
.text-link--light { color: #fff; }

.rough-rule {
  height: 12px;
  background: #111;
  clip-path: polygon(0 35%, 6% 20%, 13% 46%, 21% 27%, 29% 51%, 38% 23%, 47% 47%, 57% 26%, 67% 52%, 77% 26%, 87% 45%, 94% 23%, 100% 37%, 100% 67%, 92% 56%, 84% 79%, 74% 58%, 64% 81%, 54% 58%, 44% 78%, 34% 59%, 24% 82%, 14% 58%, 6% 76%, 0 67%);
}
.section-intro { max-width: 56rem; margin-bottom: clamp(3rem, 6vw, 5rem); }
.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 3rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}
.section-side-note {
  max-width: 24rem;
  margin: 0;
  color: var(--soft);
  font-size: .95rem;
}

/* Operator's Clarity hero */
.operator-hero { padding-top: clamp(4.5rem, 9vw, 8rem); }
.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(420px, 1.1fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: start;
}
.hero-copy { position: sticky; top: 130px; }
.review-panel {
  border: 1px solid var(--ink);
  background: var(--paper);
}
.review-panel__heading {
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-bottom: 1px solid var(--ink);
}
.review-panel__heading h2 { max-width: none; margin-bottom: 0; font-size: clamp(1.9rem, 3vw, 3rem); }
.step-label { margin-bottom: .7rem; color: var(--ballpoint); }
.review-options { display: grid; }
.review-option {
  position: relative;
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 1fr);
  gap: 1rem;
  width: 100%;
  padding: 1.25rem 1.4rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
  text-align: left;
  cursor: pointer;
  transition: background-color .15s ease, box-shadow .15s ease;
}
.review-option:hover,
.review-option:focus-visible {
  outline: none;
  background: var(--paper-blue);
  box-shadow: inset 5px 0 0 var(--ballpoint);
}
.review-option.is-selected {
  background: var(--paper-blue);
  box-shadow: inset 5px 0 0 var(--ballpoint);
}
.review-option__marker {
  width: 1rem;
  height: 1rem;
  margin-top: .28rem;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
}
.review-option.is-selected .review-option__marker {
  border: 4px solid var(--ballpoint);
}
.review-response {
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--paper-soft);
}
.review-response h3 { max-width: 18ch; }
.review-response > p:not(.response-kicker) { color: var(--soft); }
.response-kicker { margin-bottom: .75rem; color: var(--signal); }
.review-response .button { margin-top: .4rem; }

/* Answers */
.answers-section { background: var(--paper-soft); }
.answer-list { border-top: 1px solid var(--ink); }
.answer-item {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: 1.5rem;
  padding: clamp(1.6rem, 3vw, 2.4rem) 0;
  border-bottom: 1px solid var(--ink);
}
.answer-item > div { display: grid; grid-template-columns: minmax(0, .9fr) minmax(260px, .65fr); gap: clamp(2rem, 5vw, 5rem); }
.answer-item h3 { margin: 0; }
.answer-item p:last-child { margin: 0; color: var(--soft); }
.answer-number { margin: 0; color: var(--ballpoint); font-size: .8rem; font-weight: 700; }
.answer-item--signal h3 { text-decoration: underline; text-decoration-color: var(--signal); text-decoration-thickness: 4px; text-underline-offset: 6px; }
.answer-next { max-width: 56rem; margin: 2rem 0 0; color: var(--soft); font-size: .92rem; }

/* Capabilities */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--ink);
  background: var(--ink);
}
.capability-grid article {
  min-height: 300px;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--paper);
}
.capability-grid article:nth-child(2),
.capability-grid article:nth-child(3) { background: var(--paper-soft); }
.capability-grid p:last-child { color: var(--soft); }
.capability-label { color: var(--ballpoint); }

/* Work */
.work-section { background: var(--paper-soft); }
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.work-card { padding: clamp(1.6rem, 3vw, 2.5rem); }
.work-card + .work-card { border-left: 1px solid var(--ink); }
.work-card p:not(.meta) { color: var(--soft); }
.meta { margin-bottom: .8rem; color: #666; }
.work-card .text-link { margin-top: .6rem; color: var(--ink); }

/* Participation */
.participation-layout {
  display: grid;
  grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
  gap: clamp(3rem, 7vw, 7rem);
}
.participation-grid { display: grid; }
.participation-grid article {
  display: grid;
  grid-template-columns: 3rem minmax(0, .6fr) minmax(0, 1fr);
  gap: 1.4rem;
  padding: 1.6rem 0;
  border-top: 1px solid var(--ink);
}
.participation-grid article:last-child { border-bottom: 1px solid var(--ink); }
.participation-grid h3, .participation-grid p { margin-bottom: 0; }
.participation-grid p:last-child { color: var(--soft); }
.mode-number { color: var(--ballpoint); font-size: .78rem; font-weight: 700; }

/* Founder */
.founder-section { background: var(--paper-blue); }
.founder-layout {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(3rem, 8vw, 8rem);
}
.founder-copy { max-width: 40rem; }
.founder-copy p:not(.hand-note) { color: var(--soft); }
.founder-lead { font-size: clamp(1.25rem, 2vw, 1.65rem); line-height: 1.45; color: var(--ink) !important; }

/* Final CTA */
.final-cta { background: #111; color: #fff; }
.final-cta__inner {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 3rem;
}
.final-cta h2 { max-width: 15ch; margin-bottom: .8rem; }
.final-cta p { color: #d5d5d5; }
.eyebrow--light { color: #bcbcbc !important; }
.final-cta__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.5rem; }

/* Footer */
footer { background: #000; color: #fff; }
.footer-main {
  display: grid;
  grid-template-columns: 1fr .8fr;
  gap: 4rem;
  padding-block: clamp(3.5rem, 7vw, 6rem);
}
.footer-logo {
  display: block;
  width: min(270px, 100%);
  height: auto;
  margin-bottom: 1rem;
}
.footer-brand p { color: #d4d4d4; }
.footer-description { max-width: 28rem; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.footer-links a { display: flex; min-height: 24px; align-items: center; margin-bottom: .7rem; text-decoration: none; }
.footer-label { color: #aaa; }
.footer-bar { border-top: 1px solid #444; }
.footer-bar > div {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1rem;
  color: #cfcfcf;
  font-size: .8rem;
}
.footer-bar a, .breadcrumbs a { display: inline-flex; min-height: 24px; align-items: center; }

.fit-validation {
  margin-top: 1.5rem;
  padding: 1rem 1.2rem;
  border-left: 5px solid #8d2f37;
  background: #fff4f4;
}
.fit-validation p { margin: .2rem 0 0; }
.fit-form fieldset[aria-invalid="true"] { padding-inline: 1rem; background: #fff7f7; box-shadow: inset 5px 0 0 #8d2f37; }

@media (max-width: 980px) {
  .desktop-nav { display: none; }
  .mobile-nav { display: block; }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-copy { position: static; }
  .answer-item > div { grid-template-columns: 1fr; gap: 1rem; }
  .work-grid { grid-template-columns: 1fr; }
  .work-card + .work-card { border-left: 0; border-top: 1px solid var(--ink); }
}

@media (max-width: 760px) {
  :root { --space: clamp(3.75rem, 14vw, 5.5rem); }
  .header-inner { min-height: 72px; }
  .mark img { height: 40px; }
  h1 { font-size: clamp(3rem, 14vw, 4.6rem); }
  h2 { font-size: clamp(2rem, 10vw, 3rem); }
  .operator-hero { padding-top: 3.75rem; }
  .review-panel { margin-inline: calc(var(--gutter) * -.15); }
  .review-option {
    grid-template-columns: 1.2rem minmax(0, 1fr);
    min-height: 72px;
    padding: 1rem 1.05rem;
  }
  .section-heading-row,
  .final-cta__inner,
  .footer-bar > div {
    align-items: flex-start;
    flex-direction: column;
  }
  .capability-grid,
  .participation-layout,
  .founder-layout,
  .footer-main,
  .footer-links { grid-template-columns: 1fr; }
  .capability-grid article { min-height: auto; }
  .answer-item { grid-template-columns: 2.5rem minmax(0, 1fr); gap: .5rem; }
  .participation-grid article {
    grid-template-columns: 2.5rem minmax(0, 1fr);
  }
  .participation-grid article p:last-child { grid-column: 2; }
  .final-cta__actions { align-items: flex-start; flex-direction: column; }
  .breadcrumbs a,
  .footer-links a,
  .footer-bar a { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}