:root {
  --paper: #f3f0e8;
  --paper-soft: #faf8f2;
  --ink: #181816;
  --ink-soft: #56544e;
  --line: #c9c4b8;
  --line-dark: #3e3d39;
  --graphite: #1e1f1d;
  --graphite-soft: #292a27;
  --light-on-dark: #f2efe7;
  --muted-on-dark: #b9b7af;
  --brake: #a42a22;
  --brake-deep: #7e1e19;
  --accent-wash: #e8ddd3;
  --focus: #2458a6;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shell: min(1120px, calc(100% - 40px));
  --measure: 760px;
  --section-space: clamp(84px, 11vw, 152px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 36px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--brake);
  color: #fff;
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

img,
svg {
  max-width: 100%;
}

p,
h1,
h2,
h3,
blockquote,
ul,
ol {
  margin-top: 0;
}

p:last-child,
ul:last-child,
ol:last-child {
  margin-bottom: 0;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  transform: translateY(-160%);
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(243, 240, 232, 0.94);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 28px;
}

.wordmark,
.footer-wordmark {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.wordmark span,
.footer-wordmark span {
  color: var(--brake);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 24px;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.site-nav a {
  position: relative;
  text-decoration: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -5px;
  left: 0;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--brake);
  transition: transform 150ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
}

.hero {
  padding: clamp(84px, 12vw, 164px) 0 clamp(96px, 13vw, 176px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(120px, 0.26fr) minmax(0, 1fr);
  gap: clamp(34px, 7vw, 104px);
  align-items: start;
}

.hero-marker {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  margin-top: 13px;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-marker i {
  display: block;
  width: 1px;
  min-height: 164px;
  background: linear-gradient(to bottom, var(--line) 0 63%, var(--brake) 63% 100%);
}

.hero-copy {
  max-width: 930px;
}

.eyebrow {
  margin-bottom: 24px;
  color: var(--brake-deep);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h1 {
  max-width: 1000px;
  margin-bottom: 36px;
  font-size: clamp(2.9rem, 6.8vw, 6.6rem);
  line-height: 0.99;
}

h2 {
  margin-bottom: 30px;
  font-size: clamp(2.25rem, 4.8vw, 4.7rem);
  line-height: 1.04;
}

h3 {
  margin-bottom: 10px;
  font-size: 1rem;
  line-height: 1.35;
}

.hero-summary,
.lead {
  font-size: clamp(1.16rem, 2.1vw, 1.48rem);
  line-height: 1.5;
}

.hero-summary {
  max-width: 790px;
  margin-bottom: 36px;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 150ms ease, color 150ms ease, border-color 150ms ease;
}

.button-primary {
  background: var(--ink);
  color: var(--paper-soft);
}

.button-primary:hover {
  background: var(--brake);
  border-color: var(--brake);
}

.button-secondary:hover {
  background: var(--ink);
  color: var(--paper-soft);
}

.status-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 13px;
  margin: 0;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.69rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-line span {
  color: var(--brake-deep);
  font-weight: 700;
}

.section {
  padding: var(--section-space) 0;
  border-bottom: 1px solid var(--line);
}

.section-light {
  background: var(--paper-soft);
}

.section-paper {
  background: var(--paper);
}

.section-dark {
  background: var(--graphite);
  color: var(--light-on-dark);
  border-bottom-color: var(--line-dark);
}

.section-dark .eyebrow,
.section-dark .note-label {
  color: #e2786f;
}

.section-dark p {
  color: var(--muted-on-dark);
}

.section-dark .lead,
.section-dark .experiment-note p {
  color: var(--light-on-dark);
}

.section-accent {
  background: var(--accent-wash);
}

.reading-grid {
  display: grid;
  grid-template-columns: minmax(130px, 0.25fr) minmax(0, var(--measure));
  justify-content: center;
  gap: clamp(32px, 7vw, 98px);
}

.section-index {
  padding-top: 11px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-dark .section-index {
  color: var(--muted-on-dark);
}

.section-body > p:not(.eyebrow):not(.lead):not(.caveat) {
  color: var(--ink-soft);
}

.thesis-callout {
  position: relative;
  margin: 58px 0;
  padding: 8px 0 8px 34px;
  border-left: 5px solid var(--brake);
}

.thesis-callout p {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 54px;
  border: 1px solid var(--line);
}

.comparison-column {
  padding: clamp(26px, 4vw, 42px);
  background: var(--paper-soft);
}

.comparison-column + .comparison-column {
  border-left: 1px solid var(--line);
}

.comparison-muted {
  background: transparent;
  color: var(--ink-soft);
}

.comparison h3 {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.comparison ul,
.commitment-list {
  padding: 0;
  list-style: none;
}

.comparison li {
  position: relative;
  padding: 13px 0 13px 23px;
  border-top: 1px solid var(--line);
  font-size: 0.94rem;
}

.comparison li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--brake);
}

.experiment-note {
  margin-top: 48px;
  padding: 30px 0 0;
  border-top: 1px solid var(--line-dark);
}

.note-label {
  display: block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.experiment-note p {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  line-height: 1.35;
}

.question-field {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 48px 0 36px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.question-field p {
  min-height: 128px;
  margin: 0;
  padding: 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.4;
}

.caveat {
  padding-left: 20px;
  border-left: 2px solid var(--brake);
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.tension-list {
  margin: 54px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.tension-list li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}

.tension-number {
  color: var(--brake-deep);
  font-family: var(--mono);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.tension-list h3 {
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.tension-list p {
  margin: 0;
  color: var(--ink-soft);
}

.commitment-list {
  margin-top: 46px;
  border-top: 1px solid rgba(24, 24, 22, 0.25);
}

.commitment-list li {
  position: relative;
  padding: 22px 10px 22px 42px;
  border-bottom: 1px solid rgba(24, 24, 22, 0.25);
  font-family: var(--serif);
  font-size: 1.12rem;
  line-height: 1.45;
}

.commitment-list li::before {
  content: "■";
  position: absolute;
  left: 8px;
  top: 26px;
  color: var(--brake);
  font-family: var(--sans);
  font-size: 0.47rem;
}

.collaborate {
  padding: clamp(90px, 13vw, 172px) 0;
  background: var(--brake);
  color: #fff;
  border-bottom: 0;
}

.collaborate .eyebrow {
  color: #f4d4cf;
}

.collaborate-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.72fr);
  gap: clamp(48px, 9vw, 130px);
  align-items: start;
}

.collaborate h2 {
  margin-bottom: 0;
}

.collaborate-copy p {
  color: #f4deda;
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 38px;
  padding: 19px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.5);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  text-decoration: none;
  transition: padding 150ms ease, background-color 150ms ease;
}

.contact-link:hover {
  padding-inline: 14px;
  background: rgba(255, 255, 255, 0.08);
}

.contact-placeholder {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.03em;
}

.site-footer {
  padding: 48px 0;
  background: var(--graphite);
  color: var(--light-on-dark);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 40px;
}

.site-footer p {
  margin-bottom: 4px;
  color: var(--muted-on-dark);
  font-size: 0.82rem;
}

.site-footer .footer-wordmark {
  color: var(--light-on-dark);
  font-size: 1.3rem;
}

.footer-meta {
  text-align: right;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 820px) {
  :root {
    --shell: min(100% - 30px, 720px);
  }

  body {
    font-size: 17px;
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 20px 0;
    gap: 10px;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero-grid,
  .reading-grid,
  .collaborate-grid {
    grid-template-columns: 1fr;
  }

  .hero-marker {
    display: none;
  }

  .section-index {
    padding: 0 0 18px;
    border-bottom: 1px solid var(--line);
  }

  .section-dark .section-index {
    border-bottom-color: var(--line-dark);
  }

  .comparison,
  .question-field {
    grid-template-columns: 1fr;
  }

  .comparison-column + .comparison-column {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .question-field p {
    min-height: 0;
  }

  .footer-grid {
    flex-direction: column;
  }

  .footer-meta {
    text-align: left;
  }
}

@media (max-width: 520px) {
  h1 {
    font-size: clamp(2.55rem, 13vw, 4rem);
  }

  h2 {
    font-size: clamp(2rem, 10vw, 3.1rem);
  }

  .site-nav {
    gap: 9px 16px;
    font-size: 0.66rem;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .tension-list li {
    grid-template-columns: 42px 1fr;
    gap: 12px;
  }

  .commitment-list li {
    padding-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  :root {
    --paper: #fff;
    --paper-soft: #fff;
    --ink: #000;
    --ink-soft: #333;
  }

  body {
    font-size: 11pt;
    background: #fff;
    color: #000;
  }

  .site-header,
  .hero-actions,
  .contact-placeholder {
    display: none;
  }

  .hero,
  .section,
  .collaborate,
  .site-footer {
    padding: 34pt 0;
    background: #fff !important;
    color: #000 !important;
    border-color: #bbb;
  }

  .hero-grid,
  .reading-grid,
  .collaborate-grid {
    display: block;
  }

  .hero-marker,
  .section-index {
    display: none;
  }

  h1 {
    font-size: 34pt;
  }

  h2 {
    font-size: 25pt;
  }

  p,
  .section-dark p,
  .section-dark .lead,
  .collaborate-copy p,
  .site-footer p {
    color: #000 !important;
  }

  .contact-link {
    color: #000;
    border-color: #000;
  }

  a {
    text-decoration: none;
  }

  section {
    break-inside: avoid-page;
  }
}