:root {
  color-scheme: light;
  --paper: #f3efe4;
  --paper-deep: #e7dfcf;
  --ink: #151514;
  --muted: #68645b;
  --line: #c9c1b2;
  --accent: #df4c2f;
  --accent-soft: #f6cbbb;
  --blue: #4075ff;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 1rem; line-height: 1.6; }
a { color: inherit; text-underline-offset: .2em; }
a:hover { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.skip-link { position: fixed; z-index: 20; top: 1rem; left: 1rem; padding: .7rem 1rem; transform: translateY(-200%); background: var(--ink); color: var(--paper); }
.skip-link:focus { transform: none; }
.shell { width: min(1200px, calc(100% - 3rem)); margin-inline: auto; }
.site-header { display: flex; min-height: 82px; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.wordmark { font-size: .86rem; font-weight: 900; letter-spacing: .1em; text-decoration: none; }
.site-header nav { display: flex; gap: clamp(1rem, 3vw, 2.5rem); }
.site-header nav a { font-size: .86rem; font-weight: 700; text-decoration: none; }
.site-footer { display: flex; min-height: 120px; align-items: center; justify-content: space-between; gap: 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }

.article-shell { width: min(820px, calc(100% - 3rem)); margin: clamp(4rem, 10vw, 8rem) auto; }
.landing-shell { width: min(960px, calc(100% - 3rem)); }
.prose h1 { margin: 0 0 1rem; font-size: clamp(3.1rem, 8vw, 6rem); letter-spacing: -.06em; line-height: .9; }
.prose h2 { margin-top: clamp(4.5rem, 10vw, 7rem); padding-top: 1.5rem; border-top: 1px solid var(--line); font-size: clamp(2.1rem, 5vw, 3.8rem); letter-spacing: -.045em; line-height: 1; }
.prose h3 { margin-top: 2.5rem; font-size: 1.45rem; }
.prose p, .prose li { font-family: var(--serif); font-size: 1.16rem; line-height: 1.75; }
.prose blockquote { margin: 2.5rem 0; padding: .5rem 0 .5rem 1.5rem; border-left: 5px solid var(--accent); }
.prose blockquote p { margin: 0; font-family: var(--sans); font-size: clamp(1.35rem, 3vw, 1.8rem); font-weight: 750; line-height: 1.35; }
.prose pre { overflow-x: auto; padding: 1.25rem; background: var(--ink); color: #f8f4eb; font-size: .92rem; line-height: 1.55; }
.prose code { font-size: .9em; }
.prose p code, .prose li code { padding: .12em .3em; background: var(--paper-deep); }
.prose li + li { margin-top: .45rem; }

.landing-prose > h1 { margin-bottom: 2rem; color: var(--muted); font-size: .76rem; font-weight: 900; letter-spacing: .16em; line-height: 1; text-transform: uppercase; }
.landing-prose > h1 + blockquote { margin: 0 0 clamp(3rem, 7vw, 5rem); padding: 0; border: 0; }
.landing-prose > h1 + blockquote p { color: var(--muted); font-size: .92rem; letter-spacing: .08em; text-transform: uppercase; }
.landing-prose > h2:first-of-type { max-width: 900px; margin: 0 0 2rem; padding: 0; border: 0; font-size: clamp(4.4rem, 12vw, 9rem); letter-spacing: -.08em; line-height: .8; }
.landing-prose > h2:first-of-type + p { max-width: 820px; margin-bottom: 2rem; font-family: var(--sans); font-size: clamp(1.4rem, 3.2vw, 2rem); line-height: 1.35; }
.landing-prose > h2:first-of-type + p + p { max-width: 720px; color: var(--muted); }

.visual-object { width: min(1220px, calc(100vw - 3rem)); margin: clamp(5rem, 11vw, 9rem) 0; margin-left: 50%; padding: clamp(1.25rem, 3vw, 2.4rem); transform: translateX(-50%); border: 1px solid var(--ink); background: var(--paper-deep); box-shadow: 10px 10px 0 var(--accent); }
.visual-header { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr); gap: 1rem 3rem; align-items: end; padding-bottom: 1.5rem; border-bottom: 1px solid var(--ink); }
.visual-header h2 { margin: 0; padding: 0; border: 0; font-size: clamp(2.7rem, 6vw, 5rem); }
.visual-header > p:not(.visual-kicker), .visual-copy { max-width: 500px; margin: 0; }
.visual-copy p { margin: 0 0 .7rem; font-family: var(--sans); font-size: .94rem; line-height: 1.5; }
.visual-kicker, .detail-kicker { margin: 0; color: #9d2e1b; font-family: var(--sans) !important; font-size: .68rem !important; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.visual-kicker { grid-column: 1 / -1; }
.visual-tabs { display: flex; gap: .45rem; padding: 1rem 0; overflow-x: auto; border-bottom: 1px solid var(--line); }
.visual-tabs button { appearance: none; min-height: 44px; padding: .72rem 1.05rem; border: 1px solid var(--ink); background: var(--paper); color: var(--ink); font: 800 .8rem/1 var(--sans); letter-spacing: .04em; cursor: pointer; }
.visual-tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); }
.no-js-note { margin: 1rem 0 0; padding: .8rem; border: 1px dashed var(--ink); font: .82rem/1.45 var(--sans) !important; }
.visual-legend { margin: 1.25rem 0 0; color: var(--muted); font: 800 .72rem/1.4 var(--sans) !important; letter-spacing: .08em; text-transform: uppercase; }

.gravity-control { min-width: 0; margin: 0; padding: 0; border: 0; }
.gravity-radio { position: absolute; width: 1px; height: 1px; opacity: 0; }
.gravity-switch { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); width: min(480px, 100%); margin: 1rem auto; padding: .3rem; border: 1px solid var(--ink); background: var(--paper); }
.gravity-switch label { display: grid; min-height: 44px; place-items: center; padding: .65rem 1rem; font: 850 .78rem/1 var(--sans); letter-spacing: .04em; text-align: center; cursor: pointer; }
#gravity-agent:focus-visible ~ .gravity-switch label[for="gravity-agent"], #gravity-workplace:focus-visible ~ .gravity-switch label[for="gravity-workplace"] { outline: 3px solid var(--accent); outline-offset: 3px; }
#gravity-agent:checked ~ .gravity-switch label[for="gravity-agent"], #gravity-workplace:checked ~ .gravity-switch label[for="gravity-workplace"] { background: var(--ink); color: var(--paper); }
.gravity-state-copy { min-height: 5.5rem; margin: 0 auto 1rem; max-width: 820px; text-align: center; }
.gravity-state { display: none; }
.gravity-state h3 { margin: 0 0 .4rem; font-size: 1.1rem; }
.gravity-state p { margin: 0; font-family: var(--sans); font-size: .9rem; line-height: 1.5; }
#gravity-agent:checked ~ .gravity-state-copy .gravity-state--agent, #gravity-workplace:checked ~ .gravity-state-copy .gravity-state--workplace { display: block; }
.gravity-stage { position: relative; min-height: 700px; margin: 0; overflow: hidden; border: 1px solid var(--ink); background: var(--paper); isolation: isolate; }
.gravity-stage::before { position: absolute; z-index: -2; inset: 0; background-image: linear-gradient(rgba(21,21,20,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(21,21,20,.05) 1px, transparent 1px); background-size: 22px 22px; content: ""; }
.gravity-plane { position: absolute; z-index: -1; left: 0; width: 100%; padding: .55rem .7rem; border-bottom: 1px dashed var(--line); color: var(--muted); font: 850 .58rem/1.2 var(--sans); letter-spacing: .09em; text-transform: uppercase; }
.gravity-plane span { display: block; color: var(--ink); }
.gravity-plane small { font-size: .52rem; font-weight: 700; letter-spacing: .04em; }
.gravity-plane--execution { top: 0; height: 34%; background: rgba(64,117,255,.05); }
.gravity-plane--workplace { top: 34%; height: 42%; background: rgba(223,76,47,.05); }
.gravity-plane--sovereignty { top: 76%; height: 24%; border-bottom: 0; background: rgba(21,21,20,.035); }
.gravity-core, .gravity-guide, .gravity-cluster { position: absolute; transition: left .55s ease, top .55s ease, transform .55s ease, opacity .35s ease; }
.gravity-core { z-index: 3; display: grid; width: 132px; height: 132px; place-items: center; transform: translate(-50%, -50%); border: 2px solid var(--ink); border-radius: 50%; background: var(--paper); box-shadow: 7px 7px 0 var(--ink); text-align: center; }
.gravity-core span { font: 900 1.05rem/1 var(--sans); letter-spacing: -.02em; }
.gravity-core small { color: var(--muted); font: 800 .58rem/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; }
.gravity-core--agent { z-index: 4; left: 50%; top: 50%; background: var(--ink); color: var(--paper); }
.gravity-core--agent small { color: var(--accent-soft); }
.gravity-core--workplace { z-index: 2; left: 50%; top: 56%; border-color: var(--accent); box-shadow: 7px 7px 0 var(--accent); opacity: .16; }
.gravity-guide { z-index: 4; display: grid; min-width: 116px; min-height: 58px; place-items: center; padding: .6rem .8rem; border: 1px solid var(--ink); background: var(--paper); text-align: center; }
.gravity-guide strong { font: 900 .75rem/1 var(--sans); }
.gravity-guide small { color: var(--muted); font: 750 .55rem/1.2 var(--sans); text-transform: uppercase; }
.gravity-guide--human { left: 2%; top: 45%; border-color: var(--accent); }
.gravity-guide--site { right: 2%; bottom: 2%; background: var(--ink); color: var(--paper); }
.gravity-guide--site small { color: var(--accent-soft); }
.gravity-clusters { position: absolute; inset: 0; }
.gravity-cluster { z-index: 2; left: var(--agent-x); top: var(--agent-y); width: min(220px, 22%); transform: translate(-50%, -50%); padding: .65rem; border: 1px solid var(--line); background: rgba(243,239,228,.96); box-shadow: 3px 3px 0 var(--line); }
.gravity-cluster h3 { margin: 0 0 .45rem; font: 900 .58rem/1.25 var(--sans); letter-spacing: .06em; text-transform: uppercase; }
.gravity-brands { display: flex; flex-wrap: wrap; gap: .3rem; }
.gravity-brand { display: inline-flex; min-width: 0; align-items: center; gap: .3rem; padding: .25rem .38rem; border: 1px solid rgba(21,21,20,.22); background: #fffdf7; font: 750 .55rem/1 var(--sans); }
.gravity-brand img { width: 18px; height: 18px; flex: 0 0 auto; object-fit: contain; }
#gravity-workplace:checked ~ .gravity-stage .gravity-cluster { left: var(--work-x); top: var(--work-y); }
#gravity-workplace:checked ~ .gravity-stage .gravity-core--agent { left: 50%; top: 16%; width: 104px; height: 104px; box-shadow: 5px 5px 0 var(--ink); }
#gravity-workplace:checked ~ .gravity-stage .gravity-core--workplace { left: 50%; top: 55%; opacity: 1; }
#gravity-workplace:checked ~ .gravity-stage .gravity-guide--human { left: calc(50% - 225px); top: 51%; }
#gravity-workplace:checked ~ .gravity-stage .gravity-guide--site { right: calc(50% - 275px); bottom: 2%; }
.gravity-after { max-width: 820px; margin: 1.5rem auto 0; }
.gravity-after p { font-family: var(--sans); font-size: .95rem; line-height: 1.55; }

.relationship-stage { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(300px, .55fr); gap: 1.25rem; padding-top: 1.25rem; }
.relationship-tree { min-width: 0; padding: clamp(1rem, 2vw, 1.5rem); border: 1px solid var(--ink); background-image: linear-gradient(rgba(21,21,20,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(21,21,20,.05) 1px, transparent 1px); background-size: 22px 22px; }
.relationship-spine, .relationship-branch { display: flex; align-items: center; gap: .55rem; }
.relationship-spine { padding-bottom: 1.2rem; border-bottom: 2px solid var(--ink); }
.relationship-branches { display: grid; gap: .7rem; padding-top: 1rem; }
.relationship-branch { padding: .65rem; border: 1px dashed var(--line); background: rgba(243,239,228,.82); }
.relationship-branch--site { border-color: var(--accent); background: rgba(246,203,187,.42); }
.relationship-edge { flex: 0 1 auto; color: var(--muted); font: 800 .64rem/1.2 var(--sans); letter-spacing: .05em; text-align: center; text-transform: uppercase; }
.relationship-node { appearance: none; min-width: 88px; min-height: 48px; padding: .7rem .8rem; border: 1px solid var(--ink); background: var(--paper); color: var(--ink); font: 850 .78rem/1 var(--sans); cursor: pointer; }
.relationship-node small { display: none; }
.relationship-node:hover { border-color: var(--accent); color: var(--accent); }
.relationship-node[aria-pressed="true"] { background: var(--ink); color: var(--paper); box-shadow: inset 0 -4px var(--accent); }
.relationship-node--site { background: #282725; color: var(--paper); }
.relationship-explorer[data-lens="time"] [data-time="temporary"] { border-style: dashed; background: var(--accent-soft); color: var(--ink); }
.relationship-explorer[data-lens="time"] [data-time="independent"] { box-shadow: 0 0 0 3px var(--blue); }
.relationship-explorer[data-lens="boundaries"] [data-boundary="personal"] { background: #fff4c7; }
.relationship-explorer[data-lens="boundaries"] [data-boundary="meeting"] { border-style: dashed; background: var(--accent-soft); }
.relationship-explorer[data-lens="boundaries"] [data-boundary="sovereign"] { box-shadow: 0 0 0 3px var(--blue); }
.relationship-detail { padding: 1rem; border: 1px solid var(--ink); background: var(--paper); }
.relationship-detail h3 { margin: .35rem 0 1rem; color: var(--accent); font-size: 2rem; }
.relationship-detail dl { margin: 0; }
.relationship-detail dl div { display: grid; grid-template-columns: 6.2rem minmax(0, 1fr); gap: .6rem; padding: .62rem 0; border-bottom: 1px solid var(--line); }
.relationship-detail dl div:last-child { border: 0; }
.relationship-detail dt { color: var(--muted); font: 850 .58rem/1.4 var(--sans); letter-spacing: .08em; text-transform: uppercase; }
.relationship-detail dd { margin: 0; font: .8rem/1.45 var(--sans); }
.relationship-source { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.relationship-source ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .5rem 2rem; padding-left: 1.2rem; }
.relationship-source li, .relationship-source p { font-family: var(--sans); font-size: .9rem; line-height: 1.5; }

.article-kicker { margin-bottom: 3rem; color: var(--muted); font-size: .72rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.license-note { margin-top: 5rem; padding: 1.5rem; border: 1px solid var(--line); }
.license-note p { margin-bottom: 0; color: var(--muted); }

@media (max-width: 760px) {
  .shell, .article-shell, .landing-shell { width: min(100% - 2rem, 1200px); }
  .site-header { align-items: flex-start; padding-block: 1rem; }
  .site-header nav { flex-wrap: wrap; justify-content: flex-end; }
  .site-footer { align-items: flex-start; flex-direction: column; justify-content: center; }
  .landing-prose > h2:first-of-type { font-size: clamp(4rem, 19vw, 6rem); }
  .visual-object { width: calc(100vw - 2rem); padding: 1rem; box-shadow: 5px 5px 0 var(--accent); }
  .visual-header, .relationship-stage { grid-template-columns: 1fr; }
  .visual-header { gap: .8rem; }
  .gravity-stage { min-height: 1280px; }
  .gravity-plane--execution { height: 40%; }
  .gravity-plane--workplace { top: 40%; height: 40%; }
  .gravity-plane--sovereignty { top: 80%; height: 20%; }
  .gravity-cluster { width: 43%; padding: .5rem; }
  .gravity-brand { width: 100%; }
  .gravity-core { width: 108px; height: 108px; }
  .gravity-core--agent { left: 76%; top: 50%; }
  .gravity-core--workplace { left: 76%; top: 50%; }
  .gravity-guide { width: 43%; min-width: 0; transform: translate(-50%, -50%); }
  .gravity-guide--human { left: 24%; top: 50%; }
  .gravity-guide--site { right: auto; bottom: auto; left: 76%; top: 90%; }
  .gravity-cluster:nth-child(1) { --agent-x:24% !important;--agent-y:13% !important;--work-x:24% !important;--work-y:13% !important; }
  .gravity-cluster:nth-child(2) { --agent-x:76% !important;--agent-y:13% !important;--work-x:76% !important;--work-y:13% !important; }
  .gravity-cluster:nth-child(3) { --agent-x:24% !important;--agent-y:32% !important;--work-x:24% !important;--work-y:32% !important; }
  .gravity-cluster:nth-child(4) { --agent-x:24% !important;--agent-y:69% !important;--work-x:24% !important;--work-y:69% !important; }
  .gravity-cluster:nth-child(5) { --agent-x:76% !important;--agent-y:69% !important;--work-x:76% !important;--work-y:69% !important; }
  .gravity-cluster:nth-child(6) { --agent-x:24% !important;--agent-y:90% !important;--work-x:24% !important;--work-y:90% !important; }
  #gravity-workplace:checked ~ .gravity-stage .gravity-core--agent { left: 76%; top: 32%; }
  #gravity-workplace:checked ~ .gravity-stage .gravity-core--workplace { left: 76%; top: 50%; }
  #gravity-workplace:checked ~ .gravity-stage .gravity-guide--human { left: 24%; top: 50%; }
  #gravity-workplace:checked ~ .gravity-stage .gravity-guide--site { right: auto; bottom: auto; left: 76%; top: 90%; }
  .relationship-spine, .relationship-branch { flex-wrap: wrap; align-items: stretch; }
  .relationship-node { flex: 1 1 42%; }
  .relationship-edge { flex: 1 1 100%; padding: .25rem 0; text-align: left; }
  .relationship-source ul { grid-template-columns: 1fr; }
  .relationship-detail dl div { grid-template-columns: 5.5rem minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .gravity-core, .gravity-guide, .gravity-cluster { transition-duration: .01ms; }
}