/* Investor-room composition. Tokens and local fonts live in rovn-brand.css. */
.public-room { --sidebar-width: 252px; --gutter: clamp(28px, 4.5vw, 80px); --nature-art: url('/assets/brand/amber-landscape.png'); }
.public-header { height: 80px; padding: 0 32px; gap: 32px; background: var(--paper); }
.public-header .brand { width: 188px; }
.public-header .brand img { height: 31px; }
.public-header .brand > span { display: none; }
.room-breadcrumb { display: flex; align-items: center; gap: 14px; margin: 0; font-size: 13px; color: var(--muted); }
.room-breadcrumb > span { color: var(--line); }
.room-breadcrumb strong { font-weight: 500; color: var(--ink); }
.header-actions { margin-left: auto; gap: 24px; }
.public-header .menu-toggle { display: none; }
.public-header .header-cta { font-size: 13px; border: 1px solid var(--ink); border-radius: 3px; }
.public-header .account-link { font-size: 13px; }
.topic-sidebar { position: fixed; top: 80px; bottom: 0; left: 0; width: var(--sidebar-width); display: flex; flex-direction: column; border-right: 1px solid var(--line); background: var(--paper); z-index: 5; }
.sidebar-top { padding: 24px 24px 16px; display: grid; gap: 14px; }
.sidebar-top > span { font: 400 11px/1.5 var(--mono); color: var(--muted); letter-spacing: .04em; text-transform: uppercase; }
.sidebar-top .search-trigger { display: flex; align-items: center; justify-content: space-between; min-height: 44px; padding: 8px 12px; border: 1px solid var(--line); background: #FFFFFF; border-radius: 3px; color: var(--muted); font-size: 13px; }
.search-trigger kbd { padding: 0 5px; border: 1px solid var(--line); border-radius: 2px; font-size: 11px; }
.topic-list { min-height: 0; flex: 1; overflow-y: auto; padding: 0 16px 24px; scrollbar-width: thin; scrollbar-color: #CCD0D4 transparent; overscroll-behavior: contain; }
.topic-list section + section { margin-top: 24px; }
.public-room .topic-list h2 { margin: 0 10px 8px; font: 600 11px/1.5 var(--sans); color: var(--muted); letter-spacing: .045em; text-transform: uppercase; }
.topic-list a { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 10px; border-radius: 0; font-size: 13px; line-height: 1.4; color: var(--muted); border-left: 2px solid transparent; }
.topic-list a::before { content: attr(data-topic-number); color: var(--muted); font: 400 10px/1.4 var(--mono); min-width: 18px; }
.topic-list a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.topic-list a[aria-current="page"] { border-left-color: var(--amber-text); color: var(--ink); font-weight: 650; }
.topic-list a[aria-current="page"]::before { color: var(--amber-text); }
.sidebar-meet { display: flex; justify-content: space-between; min-height: 64px; align-items: center; padding: 14px 26px; border-top: 1px solid var(--line); font-size: 13px; font-weight: 550; }
.sidebar-meet > span { color: var(--amber-text); }
.sidebar-meet:hover { text-decoration: underline; }
.room-content { margin-left: var(--sidebar-width); }
.public-room main { width: 100%; max-width: 1432px; padding: 0 var(--gutter); }
.public-room .page-hero { display: block; padding: 66px 0 48px; border-bottom: 1px solid var(--line); max-width: none; }
.topic-hero-copy { min-width: 0; }
.public-room .page-hero h1 { font-size: clamp(46px, 4.8vw, 76px); line-height: 1.02; max-width: 21ch; }
.public-room .page-hero .eyebrow { margin-bottom: 24px; }
.chapter-number { float: right; margin: 0 0 20px 24px; color: var(--amber-text); font: 400 clamp(48px, 5vw, 76px)/1 var(--display); }
.public-room .hero-deck { font-size: 18px; line-height: 1.7; max-width: 64ch; margin-top: 24px; }
.public-room .hero-next { margin-top: 20px; }
.public-room .section { padding: 48px 0; }
.public-room .section h2 { font-size: clamp(32px, 3.2vw, 44px); line-height: 1.12; }
.public-room .section-split { gap: 40px; }
.public-room .button { border-radius: 3px; font-size: 14px; font-weight: 550; min-height: 48px; }
.public-room .text-link { font-size: 14px; }
.public-room .button:not(.secondary), .public-room .header-actions a.header-cta { color: #FFFFFF; border-color: var(--ink); background: var(--ink); box-shadow: none; }
.public-room .button:not(.secondary):hover, .public-room .header-actions a.header-cta:hover { background: #303640; border-color: #303640; }
.public-room .button.secondary { color: var(--ink); background: #FFFFFF; border-color: var(--line); }
.public-room .founder-full { grid-template-columns: 1fr; }
.public-room .founder-full > div { max-width: 70ch; }
.public-room .investment-visual { margin: 32px 0; }
.public-room .investment-visual .iv-header, .public-room .investment-visual .iv-body { padding: 32px; }
.public-room .iv-stack section:nth-child(2n), .public-room .iv-reuse section:nth-child(2n), .public-room .iv-table-wrap thead th, .public-room .iv-governance li:nth-child(2n) { background: #FFFFFF; }
.public-room .iv-record-bridge, .public-room .iv-record-core, .public-room .iv-center-card, .public-room .iv-boundary-decision { background: var(--ink); }

/* Opening spread: thesis and an inspectable product example. */
.room-cover { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .95fr); gap: clamp(32px, 4vw, 68px); padding: 68px 0 52px; align-items: center; }
.cover-copy .eyebrow { margin-bottom: 28px; }
.cover-copy h1 { font-size: clamp(50px, 4.85vw, 78px); line-height: 1.0; }
.cover-copy h1 em { font-weight: inherit; }
.cover-intro { font-size: 19px; line-height: 1.6; margin: 28px 0 16px; max-width: 36ch; letter-spacing: -.015em; }
.cover-description { font-size: 16px; line-height: 1.75; color: var(--muted); max-width: 48ch; }
.cover-copy .hero-actions { gap: 12px 22px; margin-top: 28px; }
.cover-stage { margin: 24px 0 0; font-size: 12px; line-height: 1.65; color: var(--muted); }
.hiring-path { margin: 0; padding: 28px; background: #FFFFFF; border: 1px solid var(--line); border-top: 3px solid var(--amber); border-radius: 0; box-shadow: none; }
.path-canopy { display: flex; flex-direction: column; gap: 24px; padding: 0 0 24px; color: var(--ink); background: none; border-bottom: 1px solid var(--line); }
.path-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.path-heading > span:last-child { color: var(--amber-text); }
.path-label { font-size: 11px; text-transform: uppercase; font-weight: 550; letter-spacing: .075em; color: var(--amber-text); }
.hiring-path h2 { font-size: clamp(34px, 3vw, 46px); line-height: 1.0; }
.case-person { display: flex; gap: 13px; align-items: center; padding: 24px 0; }
.case-person strong { display: block; font-size: 14px; font-weight: 550; line-height: 1.5; }
.case-person div > span { display: block; font-size: 12px; line-height: 1.6; color: var(--muted); margin-top: 5px; }
.case-monogram { display: grid; place-items: center; width: 40px; height: 40px; flex: 0 0 40px; border-radius: 50%; border: 1px solid var(--line); color: var(--amber-text); font: 400 11px/1 var(--mono); }
.case-preview { margin: 0 0 20px; }
.case-preview > div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-top: 1px solid var(--line); font-size: 12px; line-height: 1.5; }
.case-preview dt { font-weight: 550; }
.case-preview dd { margin: 0; color: var(--muted); text-align: right; }
.case-preview .case-attention { color: var(--amber-text); }
.hiring-path figcaption { font-size: 12px; line-height: 1.65; color: var(--muted); max-width: 46ch; padding-top: 18px; border-top: 1px solid var(--line); }
.hiring-path figcaption a { display: inline-block; margin-top: 10px; text-decoration: underline; font-weight: 550; color: var(--ink); }
.investment-snapshot { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-block: 1px solid var(--line); }
.investment-snapshot > a { min-width: 0; padding: 30px 32px; }
.investment-snapshot > a:first-child { padding-left: 0; }
.investment-snapshot > a:last-child { padding-right: 0; }
.investment-snapshot > a + a { border-left: 1px solid var(--line); }
.snapshot-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.investment-snapshot strong { display: block; font: 450 clamp(38px, 3.6vw, 52px)/1.1 var(--display); letter-spacing: -.035em; font-variant-numeric: lining-nums; }
.investment-snapshot strong > span { font: 450 14px/1.5 var(--sans); letter-spacing: -.015em; }
.investment-snapshot p { margin: 16px 0 20px; color: var(--muted); font-size: 13px; line-height: 1.65; }
.snapshot-link { display: flex; justify-content: space-between; gap: 10px; color: var(--amber-text); font-size: 12px; font-weight: 550; }
.investment-snapshot a:hover .snapshot-link { text-decoration: underline; }
.case-thesis, .founder-brief { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.25fr); gap: 54px; padding: 60px 0; }
.thesis-intro h2 { font-size: clamp(32px, 3vw, 44px); line-height: 1.1; margin: 20px 0; }
.thesis-intro > p:last-child { color: var(--muted); font-size: 16px; max-width: 34ch; line-height: 1.7; }
.thesis-points { list-style: none; padding: 0; margin: 0; }
.thesis-points li { display: flex; align-items: start; gap: 20px; padding: 26px 0; border-top: 1px solid var(--line); }
.thesis-points li:first-child { padding-top: 0; border-top: 0; }
.thesis-number { font: 450 32px/1 var(--display); color: var(--amber-text); min-width: 32px; }
.thesis-points h3 { font-size: 18px; line-height: 1.5; font-weight: 550; letter-spacing: -.025em; }
.thesis-points p { margin: 12px 0; color: var(--muted); font-size: 16px; line-height: 1.7; }
.thesis-points a { display: inline-block; padding: 6px 0; font-size: 13px; font-weight: 550; text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 4px; }
.founder-brief { border-block: 1px solid var(--line); padding: 40px 0; }
.founder-brief h2 { font-size: 38px; line-height: 1.1; margin-top: 16px; }
.founder-brief > div > p:not(.eyebrow):not(.note) { font-size: 16px; line-height: 1.8; max-width: 60ch; }
.founder-brief .note { font-size: 12px; margin-top: 16px; }

/* A single bounded piece of original artwork introduces the longer horizon. */
.vision-invitation { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); margin: 48px 0 0; overflow: hidden; background: var(--ink); color: #FFFFFF; }
.vision-invitation-copy { padding: 40px; }
.public-room .vision-invitation .eyebrow { display: block; color: var(--amber); margin-bottom: 26px; }
.vision-invitation h2 { font-size: clamp(32px, 3vw, 44px); line-height: 1.05; color: #FFFFFF; }
.vision-invitation p { font-size: 15px; line-height: 1.75; max-width: 45ch; margin: 24px 0 26px; color: #DDE0E3; }
.vision-invitation-link { font-size: 13px; font-weight: 550; color: var(--amber); }
.vision-invitation:hover .vision-invitation-link { text-decoration: underline; text-underline-offset: 4px; }
.vision-invitation-art { min-height: 300px; background: var(--nature-art) 38% center / cover; }
.cover-explore { padding: 48px 0; display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 40px; }
.cover-explore h2 { font-size: 40px; line-height: 1.1; }
.cover-explore p { font-size: 16px; line-height: 1.7; color: var(--muted); margin: 16px 0 0; max-width: 30ch; }
.cover-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 30px; }
.cover-links a { display: flex; gap: 12px; justify-content: space-between; padding: 8px 0; }
.cover-links strong { font-size: 14px; font-weight: 550; line-height: 1.5; }
.cover-links small { display: block; font-size: 12px; color: var(--muted); line-height: 1.65; margin-top: 8px; }
.cover-links a > span:last-child { color: var(--amber-text); }
.cover-links a:hover strong { text-decoration: underline; }

/* Vision chapters: useful surfaces with an intelligence foundation. */
.vision-chapters { display: flex; flex-wrap: wrap; gap: 8px 24px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.vision-chapters a { font-size: 13px; font-weight: 500; min-height: 44px; display: flex; align-items: center; gap: 10px; }
.vision-chapters a span { color: var(--amber-text); font: 400 11px/1 var(--mono); }
.vision-chapters a:hover { text-decoration: underline; }
.vision-horizons { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 0; margin: 32px 0 0; list-style: none; border-block: 1px solid var(--line); }
.vision-horizons li { padding: 28px; background: #FFFFFF; }
.vision-horizons li + li { border-left: 1px solid var(--line); }
.vision-horizons .horizon-number { display: block; color: var(--amber-text); font: 450 36px/1 var(--display); margin-bottom: 24px; }
.vision-horizons h3 { font-size: 20px; font-weight: 550; line-height: 1.4; }
.vision-horizons p { color: var(--muted); font-size: 16px; line-height: 1.7; margin: 16px 0 0; }
.vision-horizons small { display: block; color: var(--muted); font-size: 12px; margin-top: 20px; }
.public-room .vision-statement { margin: 36px 0; padding: 8px 0 8px 28px; background: #FFFFFF; border-left: 2px solid var(--amber); }
.vision-statement p { max-width: 54ch; font: 450 clamp(28px, 3vw, 40px)/1.2 var(--display); letter-spacing: -.02em; margin: 0; }
.vision-statement cite { display: block; margin-top: 18px; font-size: 13px; color: var(--muted); font-style: normal; }
.company-model { margin: 32px 0; border: 1px solid var(--line); overflow: hidden; background: #FFFFFF; scroll-margin-top: 100px; }
.company-model-surfaces { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
.company-model-surfaces article { padding: 32px; }
.company-model-surfaces article + article { border-left: 1px solid var(--line); }
.layer-label { display: block; color: var(--amber-text); font-size: 12px; font-weight: 550; letter-spacing: .04em; text-transform: uppercase; }
.public-room .company-model h3 { font: 450 34px/1.08 var(--display); letter-spacing: -.025em; margin: 20px 0; max-width: 22ch; }
.company-model p { font-size: 16px; line-height: 1.75; margin: 0; }
.layer-outcome { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 20px; display: grid; gap: 8px; font-size: 13px; line-height: 1.7; }
.layer-outcome strong { font-weight: 600; }
.company-model-foundation { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 32px; padding: 32px; background: var(--ink); color: #FFFFFF; align-items: center; }
.company-model-foundation .layer-label { color: var(--amber); }
.company-model-foundation h3 { margin-bottom: 0; color: #FFFFFF; }
.company-model-foundation p { color: #DDE0E3; }
.company-model figcaption { padding: 20px 32px; font-size: 12px; line-height: 1.7; color: var(--muted); }
.compounding-cycle { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); list-style: none; padding: 0; margin: 24px 0; border-top: 1px solid var(--line); }
.compounding-cycle li { display: flex; gap: 16px; align-items: baseline; padding: 24px 24px 24px 0; border-bottom: 1px solid var(--line); }
.compounding-cycle li > span { font: 450 26px/1 var(--display); color: var(--amber-text); }
.compounding-cycle strong { font-size: 14px; line-height: 1.6; font-weight: 500; }
/* Operating-intelligence reading aids reuse the approved white/ink system. */
.operating-loop { margin: 32px 0; }
.operating-loop-steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 0 28px; list-style: none; padding: 0; margin: 0; border-top: 2px solid var(--amber); }
.operating-loop-steps li { min-width: 0; padding: 24px 0; border-bottom: 1px solid var(--line); }
.loop-number { color: var(--amber-text); font: 400 13px/1.5 var(--mono); }
.public-room .operating-loop-steps h3 { font: 450 30px/1.12 var(--display); letter-spacing: -.02em; margin: 12px 0; }
.operating-loop-steps p { font-size: 15px; line-height: 1.7; margin: 0; }
.operating-loop figcaption { font-size: 13px; line-height: 1.7; color: var(--muted); margin-top: 18px; }
.architecture-path { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); list-style: decimal-leading-zero inside; padding: 0; margin: 28px 0; border-top: 1px solid var(--line); gap: 0 24px; }
.architecture-path li { min-width: 0; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 15px; line-height: 1.6; }
.architecture-path li::marker { color: var(--amber-text); font-family: var(--mono); font-size: 12px; }
.value-equation { border-block: 1px solid var(--line); padding: 24px 0; margin: 28px 0; }
.value-equation p { max-width: 50ch; }
.value-equation p:last-child { font: 450 clamp(26px,3vw,34px)/1.3 var(--display); margin-bottom: 0; }
/* Chapter navigation is native HTML so long-form reading works without JS. */
.chapter-guide { margin: 0 0 24px; border-block: 1px solid var(--line); }
.chapter-guide > summary { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; padding: 20px 0; cursor: pointer; font-size: 15px; font-weight: 550; list-style: none; }
.chapter-guide > summary::-webkit-details-marker { display: none; }
.chapter-guide > summary::after { content: '+'; margin-left: auto; color: var(--amber-text); font: 400 24px/1 var(--sans); }
.chapter-guide[open] > summary::after { content: '−'; }
.chapter-guide-meta { color: var(--muted); font-size: 12px; font-weight: 400; }
.chapter-guide nav { padding-bottom: 24px; }
.chapter-guide ol { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 0 36px; margin: 0; padding: 0; list-style: none; counter-reset: chapter; }
.chapter-guide li { min-width: 0; counter-increment: chapter; border-top: 1px solid var(--line); }
.chapter-guide a { display: flex; gap: 14px; padding: 14px 0; min-height: 44px; font-size: 14px; line-height: 1.6; text-decoration: none; overflow-wrap: anywhere; }
.chapter-guide a::before { content: counter(chapter, decimal-leading-zero); flex: 0 0 2ch; white-space: nowrap; color: var(--amber-text); font: 400 11px/1.9 var(--mono); }
.chapter-guide a:hover { color: var(--amber-text); text-decoration: underline; text-underline-offset: 4px; }
.chapter-guide :focus-visible { outline: 2px solid var(--amber-text); outline-offset: 3px; }
.public-room main [id] { scroll-margin-top: 100px; }
@media (max-width: 700px) {
  .chapter-guide ol { grid-template-columns: 1fr; }
  .chapter-guide > summary { gap: 8px 12px; position: relative; padding-right: 30px; }
  .chapter-guide > summary::after { position: absolute; right: 0; top: 20px; }
  .chapter-guide-meta { flex-basis: 100%; }
}
@media (max-width: 900px) {
  .operating-loop-steps, .architecture-path { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 520px) {
  .operating-loop-steps, .architecture-path { grid-template-columns: 1fr; }
  .operating-loop-steps li { padding: 20px 0; }
}
.far-horizon-package { padding: 0 0 32px; border-bottom: 1px solid var(--line); }
.far-horizon-package > summary { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; padding: 28px 0; border-block: 1px solid var(--line); font: 450 32px/1.15 var(--display); }
.far-horizon-package > summary::after { content: '+'; font: 400 26px/1 var(--sans); color: var(--amber-text); }
.far-horizon-package[open] > summary::after { content: '−'; }
.far-horizon-package > summary small { display: block; font: 400 13px/1.7 var(--sans); color: var(--muted); margin-top: 10px; }
.public-room .far-horizon-package .section { border-top: 0; padding: 32px 0 0; }

/* Workflow controls, ownership and evidence remain explicit. */
.public-room .workflow-story { padding-top: 40px; }
.workflow-case { margin-top: 32px; border: 1px solid var(--line); overflow: hidden; background: #FFFFFF; }
.case-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; padding: 18px 28px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.case-status { font-weight: 550; color: var(--amber-text); }
.case-controls { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border-bottom: 1px solid var(--line); }
.case-controls button { display: flex; align-items: center; gap: 12px; min-height: 64px; padding: 14px 18px; border: 0; border-right: 1px solid var(--line); border-bottom: 3px solid transparent; border-radius: 0; background: #FFFFFF; font-size: 13px; text-align: left; line-height: 1.5; }
.case-controls button:last-child { border-right: 0; }
.case-controls button > span { color: var(--amber-text); font: 400 11px/1 var(--mono); }
.case-controls button:hover { color: var(--amber-text); }
.case-controls button[aria-pressed="true"] { border-bottom-color: var(--amber-text); font-weight: 600; }
.case-controls button:focus-visible { outline: 2px solid var(--amber-text); outline-offset: -5px; }
.case-step { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 36px; padding: 32px; min-height: 420px; align-items: start; }
.public-room .case-explanation h3 { font: 450 34px/1.12 var(--display); letter-spacing: -.02em; margin: 18px 0; }
.case-explanation > p:not(.eyebrow) { font-size: 16px; line-height: 1.75; }
.case-explanation .case-change { margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.case-change strong { color: var(--ink); font-weight: 600; }
.case-artifact { border: 1px solid var(--line); background: #FFFFFF; overflow: hidden; }
.artifact-heading { padding: 22px; border-bottom: 1px solid var(--line); }
.artifact-heading span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 10px; }
.artifact-heading strong { font-size: 16px; font-weight: 550; }
.case-artifact dl { margin: 0; }
.case-artifact dl > div { padding: 18px 22px; border-bottom: 1px solid var(--line); }
.case-artifact dl > div:last-child { border-bottom: 0; }
.case-artifact dt { font-size: 13px; font-weight: 600; }
.case-artifact dd { margin: 8px 0 0; font-size: 14px; color: var(--muted); line-height: 1.7; }
.case-artifact dd small { font-size: 12px; }
.artifact-attention { border-left: 3px solid var(--amber); }
.sample-message { margin: 0; padding: 26px 22px; font-size: 16px; line-height: 1.8; }
.case-artifact .artifact-foot { padding: 18px 22px; margin: 0; border-top: 1px solid var(--line); font-size: 12px; line-height: 1.7; color: var(--muted); }
.decision-items { list-style: none; margin: 0; padding: 4px 22px; }
.decision-items li { padding: 15px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.decision-items li:last-child { border-bottom: 0; }
.public-room .case-disclosure { max-width: none; margin: 0; padding: 18px 28px; color: var(--muted); border-top: 1px solid var(--line); font-size: 12px; line-height: 1.7; }
.evidence-ledger { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); border-block: 1px solid var(--line); margin: 32px 0; }
.evidence-ledger > div { padding: 28px; background: #FFFFFF; }
.evidence-ledger > div + div { border-left: 1px solid var(--line); }
.evidence-ledger h3 { font-size: 18px; margin-bottom: 18px; }
.evidence-ledger ul { margin: 0; padding-left: 18px; }
.evidence-ledger li { font-size: 16px; line-height: 1.75; margin-top: 12px; }
.economics-example { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.2fr); gap: 40px; margin: 32px 0; padding: 32px 0; border-block: 1px solid var(--line); }
.public-room .economics-example h3 { font: 450 34px/1.12 var(--display); }
.economics-example p { font-size: 16px; line-height: 1.75; margin-top: 16px; }
.economics-example dl { margin: 0; }
.economics-example dl > div { display: flex; justify-content: space-between; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.economics-example dd { font-weight: 550; margin: 0; white-space: nowrap; }
.economics-example dl > div:last-child { border-bottom: 0; }
.expansion-ledger { margin-top: 28px; }
.expansion-ledger th, .expansion-ledger td { font-size: 15px; line-height: 1.7; }
.expansion-ledger tbody th { min-width: 130px; color: var(--ink); }

.public-room .public-footer { margin: 0 var(--gutter); max-width: none; padding: 32px 0; display: block; border-top: 1px solid var(--line); }
.public-room .footer-top { display: flex; gap: 24px; align-items: center; }
.public-room .footer-brand img { height: 24px; width: auto; }
.public-room .footer-top p { font-size: 12px; line-height: 1.7; margin: 0; }
.public-room .public-footer nav { display: flex; flex-wrap: wrap; margin-top: 20px; gap: 8px 24px; font-size: 12px; }
.public-room .public-footer nav a { display: inline-flex; align-items: center; min-height: 44px; }
.public-room .public-footer .footer-fine { font-size: 11px; padding: 14px 0 0; margin: 0; }
.public-room .next-page { margin: 16px 0 48px; }
.public-room .next-page strong { font: 450 32px/1.15 var(--display); }
#room-menu { background: #FFFFFF; }
#room-menu .room-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
#room-menu .room-index a { min-height: 44px; }
#room-menu .room-index h2 { font: 600 12px/1.5 var(--sans); }

@media (min-width: 1041px) and (max-width: 1300px) {
  .public-room { --sidebar-width: 232px; --gutter: 32px; }
  .public-header .brand { width: 168px; }
  .room-cover { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 28px; }
  .cover-copy h1 { font-size: 54px; }
  .hiring-path { padding: 24px; }
  .case-preview > div { flex-wrap: wrap; gap: 4px 12px; }
  .investment-snapshot > a { padding-inline: 22px; }
  .iv-fragmentation, .iv-two-sides, .iv-record-map { grid-template-columns: 1fr; }
  .iv-record-bridge { margin: 0; }
  .iv-capital ol { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .iv-governance ol { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .case-controls button { padding: 12px; gap: 8px; font-size: 12px; }
  .case-step { gap: 24px; padding: 26px; }
}
@media (max-width: 1040px) {
  .public-room { --gutter: 32px; }
  .topic-sidebar { display: none; }
  .room-content { margin-left: 0; }
  .public-header { padding: 0 32px; }
  .public-header .brand { width: auto; }
  .public-header .brand > span { display: block; font-size: 12px; }
  .room-breadcrumb { display: none; }
  .public-header .menu-toggle { display: inline-flex; font-size: 13px; }
  .room-cover { gap: 32px; padding-top: 48px; }
  .cover-copy h1 { font-size: clamp(44px, 6vw, 62px); }
  .hiring-path { padding: 24px; }
  .case-preview > div { flex-wrap: wrap; gap: 4px 12px; }
  .vision-invitation-copy { padding: 32px; }
}
@media (max-width: 700px) {
  .public-room { --gutter: 24px; }
  .public-header { height: 68px; min-height: 68px; padding: 0 24px; gap: 12px; }
  .public-header .brand img { height: 26px; }
  .public-header .brand > span { display: none; }
  .header-actions { gap: 22px; }
  .public-header .account-link { display: inline-flex; }
  .room-cover { grid-template-columns: 1fr; padding: 40px 0 36px; gap: 36px; }
  .cover-copy .eyebrow { margin-bottom: 24px; font-size: 11px; }
  .cover-copy h1 { font-size: clamp(46px, 12vw, 66px); line-height: 1.02; }
  .cover-intro { font-size: 18px; margin-top: 24px; max-width: 35ch; }
  .cover-description { font-size: 16px; }
  .cover-copy .hero-actions { margin-top: 24px; }
  .hiring-path { padding: 24px; }
  .hiring-path h2 { font-size: 38px; }
  .investment-snapshot { grid-template-columns: 1fr; }
  .investment-snapshot > a, .investment-snapshot > a:first-child, .investment-snapshot > a:last-child { padding: 26px 0; }
  .investment-snapshot > a + a { border-left: 0; border-top: 1px solid var(--line); }
  .investment-snapshot strong { font-size: 44px; }
  .investment-snapshot p { margin: 12px 0 16px; }
  .case-thesis, .founder-brief { grid-template-columns: 1fr; gap: 30px; padding: 40px 0; }
  .thesis-intro h2, .founder-brief h2 { font-size: 36px; }
  .thesis-intro > p:last-child { max-width: none; }
  .thesis-points li:first-child { padding-top: 26px; border-top: 1px solid var(--line); }
  .cover-explore { grid-template-columns: 1fr; gap: 30px; padding: 40px 0; }
  .cover-explore p { max-width: 40ch; }
  .cover-links { grid-template-columns: 1fr; gap: 20px; }
  .public-room .page-hero { padding: 40px 0 36px; }
  .public-room .page-hero h1 { font-size: 46px; max-width: 18ch; }
  .chapter-number { font-size: 44px; margin-left: 16px; }
  .public-room .hero-deck { font-size: 17px; }
  .public-room .section { padding: 36px 0; }
  .vision-invitation { grid-template-columns: 1fr; margin-top: 36px; }
  .vision-invitation-copy { padding: 28px; }
  .vision-invitation h2 { font-size: 36px; }
  .vision-invitation-art { min-height: 180px; background-position: 30% 48%; }
  .vision-horizons { grid-template-columns: 1fr; }
  .vision-horizons li { padding: 26px 0; }
  .vision-horizons li + li { border-left: 0; border-top: 1px solid var(--line); }
  .vision-horizons .horizon-number { margin-bottom: 16px; }
  .public-room .vision-statement { padding-left: 24px; }
  .public-room .investment-visual .iv-header, .public-room .investment-visual .iv-body { padding: 24px; }
  .case-controls { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .case-controls button { font-size: 12px; padding: 14px; min-height: 60px; }
  .case-toolbar { padding: 18px 22px; }
  .case-step { grid-template-columns: 1fr; gap: 26px; padding: 26px 22px; min-height: 0; }
  .public-room .case-disclosure { padding: 18px 22px; }
  .evidence-ledger { grid-template-columns: 1fr; }
  .evidence-ledger > div { padding: 24px 0; }
  .evidence-ledger > div + div { border-left: 0; border-top: 1px solid var(--line); }
  .economics-example { grid-template-columns: 1fr; padding: 26px 0; gap: 24px; }
  .far-horizon-package > summary { font-size: 28px; }
  .company-model-surfaces, .company-model-foundation { grid-template-columns: 1fr; }
  .company-model-surfaces article { padding: 26px; }
  .company-model-surfaces article + article { border-left: 0; border-top: 1px solid var(--line); }
  .company-model-foundation { padding: 26px; gap: 20px; }
  .company-model figcaption { padding: 20px 26px; }
  .compounding-cycle { grid-template-columns: repeat(2,minmax(0,1fr)); }
  #room-menu .room-index { grid-template-columns: 1fr; }
}
@media (max-width: 400px) {
  .iv-node-cloud { grid-template-columns: 1fr; gap: .4rem; }
  .iv-node-cloud li { min-height: 0; padding: .65rem .8rem; }
  .public-room .iv-fragmentation .iv-center-card strong { font-size: 24px; }
}
@media print {
  .topic-sidebar, .public-header, .public-footer, .case-controls { display: none !important; }
  .room-content { margin: 0; }
  .room-cover { padding-top: 0; }
  .hiring-path, .case-step { break-inside: avoid; }
  .case-step[hidden] { display: grid !important; }
}