.window-page { --paper: #000000; --ink: #edf4ee; --muted: #adbcb2; --line: #2a3930; --blue: #b0d5b8; }
.window-page .site-header { background: #000000ef; }
.window-hero { padding-block: 72px 40px; }
.window-wordmark { display: flex; align-items: center; gap: 18px; margin-bottom: 42px; font: 400 42px/1 var(--serif); letter-spacing: -.025em; }
.window-wordmark img { flex: none; }
.window-hero h1 { margin-top: 24px; font-size: clamp(44px, 5.8vw, 82px); line-height: 1.5; font-weight: 400; letter-spacing: -.065em; }
.window-hero-bottom { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-top: 36px; }
.window-hero-bottom > p { color: var(--muted); font-size: 15px; line-height: 2.1; }
.window-link { display: inline-flex; align-items: center; gap: 28px; min-height: 44px; font-size: 13px; }
.window-link:hover { color: var(--blue); text-decoration: underline; text-underline-offset: 5px; }
.window-formats { display: flex; flex-wrap: wrap; gap: 12px 32px; margin-top: 52px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font: 11px/1.8 ui-monospace, monospace; }
.reading-section { margin-top: 60px; padding-block: 90px; background: #080d0a; }
.window-section-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 20px 72px; align-items: end; }
.window-section-heading > .eyebrow { grid-column: 1 / -1; }
.window-section-heading h2, .environment-layout h2, .window-context h2 { font-size: clamp(30px, 3.5vw, 48px); line-height: 1.65; font-weight: 400; letter-spacing: -.055em; }
.window-section-heading > p:not(.eyebrow) { max-width: 32em; color: var(--muted); font-size: 14px; }
.reading-model { margin-top: 56px; }
.model-columns { display: grid; grid-template-columns: 1fr 100px 1fr; align-items: center; max-width: 880px; margin-inline: auto; }
.model-document, .model-explanation { padding: 36px; min-height: 320px; box-shadow: 0 20px 48px -32px #000b; border: 1px solid var(--line); }
.model-document { background: #141d18; rotate: -3deg; }
.model-explanation { background: #203126; rotate: 3deg; }
.model-label { font-size: 11px; color: var(--muted); }
.model-columns p { margin-top: 32px; font-size: clamp(17px, 2vw, 25px); line-height: 1.8; letter-spacing: -.03em; }
.model-join { text-align: center; font: 36px/1 var(--serif); color: var(--blue); }
.document-lines { display: grid; gap: 12px; margin-top: 30px; }
.document-lines i { height: 2px; width: 100%; background: #536f5d; }
.document-lines i:last-child { width: 65%; }
.reading-model figcaption { margin-top: 34px; text-align: center; font-size: 10px; color: var(--muted); }
.reading-details { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; margin-top: 60px; }
.reading-details h3 { font-size: 18px; font-weight: 500; }
.reading-details p { margin-top: 18px; color: var(--muted); font-size: 13px; }
.review-section { padding-block: 110px; }
.review-flow { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 36px; padding: 0; margin: 56px 0 0; counter-reset: review; }
.review-flow li { counter-increment: review; border-top: 1px solid var(--line); padding-top: 20px; }
.review-flow li::before { content: "0" counter(review); display: block; margin-bottom: 20px; font: 28px/1 var(--serif); color: var(--blue); }
.review-flow span { font-size: 17px; }
.review-flow p { margin-top: 16px; color: var(--muted); font-size: 13px; }
.window-environment { padding-block: 64px; background: #080d0a; }
.environment-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; }
.environment-layout h2 { font-size: clamp(26px, 2.8vw, 38px); }
.environment-layout p { color: var(--muted); font-size: 13px; }
.environment-layout p + p { margin-top: 20px; }
.window-context { padding-block: 100px; }
.window-context h2 { margin-top: 22px; }
.window-context > p:not(.eyebrow) { max-width: 42em; margin-top: 28px; color: var(--muted); font-size: 14px; }
.window-context > div { display: flex; flex-wrap: wrap; gap: 16px 44px; margin-top: 24px; }
.window-footer { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; min-height: 112px; border-top: 1px solid var(--line); }
.window-footer > p { font: italic 22px/1.2 var(--serif); }
.window-footer small { margin-left: auto; color: var(--muted); font-size: 10px; }
@media (max-width: 760px) {
  .window-page .site-header nav { gap: 15px; font-size: 10px; }
  .window-hero { padding-top: 44px; }
  .window-wordmark { font-size: 34px; gap: 12px; margin-bottom: 30px; }
  .window-wordmark img { width: 52px; height: 52px; }
  .window-hero h1 { font-size: clamp(34px, 9.6vw, 56px); }
  .window-hero-bottom { align-items: start; flex-direction: column; gap: 22px; }
  .window-hero-bottom > p { font-size: 13px; }
  .window-formats { margin-top: 32px; font-size: 9px; }
  .reading-section { margin-top: 20px; padding-block: 54px; }
  .window-section-heading, .reading-details, .environment-layout { grid-template-columns: 1fr; gap: 24px; }
  .window-section-heading > p:not(.eyebrow) { font-size: 13px; }
  .model-columns { grid-template-columns: 1fr 28px 1fr; }
  .model-document, .model-explanation { min-height: 230px; padding: 18px 14px; }
  .model-columns p { font-size: 13px; margin-top: 24px; }
  .model-join { font-size: 22px; }
  .reading-details { margin-top: 42px; gap: 30px; }
  .review-section, .window-context { padding-block: 64px; }
  .review-flow { grid-template-columns: 1fr; gap: 28px; margin-top: 36px; }
  .review-flow li::before { margin-bottom: 14px; }
  .window-environment { padding-block: 44px; }
  .window-context > p:not(.eyebrow) { font-size: 13px; }
  .window-footer { padding-block: 25px; gap: 16px; }
  .window-footer small { width: 100%; margin: 0; }
}
@media (prefers-reduced-transparency: reduce) { .window-page .site-header { background: var(--paper); } }