:root{--surface:#f4f0e7;--paper:#fffdf8;--ink:#171717;--ink-soft:#5d5a52;--accent:#1746d1;--accent-dark:#10349d;--rule:#bfb8aa;--night:#111;--shell:1180px;--reading:70ch}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{background:var(--surface);color:var(--ink);text-rendering:optimizelegibility;margin:0;font-family:Arial,sans-serif;font-size:17px;line-height:1.62}a{color:var(--accent-dark);text-underline-offset:.2em;text-decoration-thickness:1px}main a:visited:not(.button):not(.action-link){color:#673065}a,button,select{touch-action:manipulation}:focus-visible{outline-offset:4px;outline:3px solid #ff8a00}.shell{width:min(calc(100% - 48px), var(--shell));margin-inline:auto}.skip-link{z-index:100;background:var(--night);color:#fff;padding:10px 14px;position:fixed;top:10px;left:10px;transform:translateY(-160%)}.skip-link:focus{transform:translateY(0)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.site-header{border-bottom:1px solid var(--ink);background:var(--surface)}.masthead{grid-template-columns:1fr auto;align-items:center;gap:24px;min-height:64px;display:grid}.wordmark{color:var(--ink);letter-spacing:-.035em;font-family:Georgia,serif;font-size:26px;font-weight:700;text-decoration:none}.masthead p{color:var(--ink-soft);letter-spacing:.04em;text-transform:uppercase;margin:0;font-family:Courier New,monospace;font-size:12px}.nav{align-items:center;gap:28px;min-height:48px;display:flex}.nav a{min-height:44px;color:var(--ink);flex:none;align-items:center;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.nav a:hover,.nav a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:8px;text-decoration-thickness:3px}.site-menu{display:none}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:-.035em;font-family:Georgia,serif;line-height:1.05}h1{max-width:18ch;margin-bottom:28px;font-size:clamp(2.8rem,5.4vw,5.2rem);font-weight:400}h2{margin-bottom:24px;font-size:clamp(2.1rem,3.8vw,3.7rem);font-weight:400}h3{font-size:1.65rem}.kicker,.eyebrow,.section-label,.brief-label,.project-type{color:var(--accent-dark);letter-spacing:.07em;text-transform:uppercase;margin:0 0 18px;font-family:Courier New,monospace;font-size:12px;font-weight:700;line-height:1.4}.standfirst,.lede{color:#3f3d38;max-width:60ch;margin-bottom:30px;font-family:Georgia,serif;font-size:clamp(1.25rem,2.2vw,1.6rem);line-height:1.45}.actions,.project-links{flex-wrap:wrap;gap:12px 24px;display:flex}.button,.action-link{border:1px solid var(--ink);min-height:48px;color:var(--ink);align-items:center;padding:10px 16px;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.button:hover,.action-link:hover{background:var(--paper)}.button.primary,.primary-action{border-color:var(--accent);background:var(--accent);color:#fff}.button.primary:visited,.primary-action:visited{color:#fff}.button.primary:hover,.primary-action:hover{background:var(--accent-dark)}.button.tonal{background:#e5e9f5;border-color:#aeb6ca}.home-hero{grid-template-columns:minmax(0,1.55fr) minmax(280px,.45fr);align-items:end;gap:clamp(48px,9vw,120px);padding-block:clamp(48px,6vw,76px) clamp(72px,8vw,104px);display:grid}.hero{border-bottom:1px solid var(--rule);padding-block:clamp(48px,6vw,76px) clamp(72px,8vw,104px)}.hero>*{max-width:820px}.hero-brief{border-top:3px solid var(--ink);border-bottom:1px solid var(--ink);padding-block:18px}.hero-brief dl{margin:0}.hero-brief dl div{border-top:1px solid var(--rule);grid-template-columns:85px 1fr;gap:18px;padding-block:12px;display:grid}.hero-brief dt{font-weight:700}.hero-brief dd{color:var(--ink-soft);margin:0}.definition-band{background:var(--night);color:#fff;padding-block:clamp(70px,9vw,112px)}.article-grid{grid-template-columns:180px minmax(0,760px);gap:clamp(32px,7vw,90px);display:grid}.definition-band .section-label{color:#9db2ff}.definition-band h2{max-width:15ch}.definition-band p{max-width:var(--reading);color:#d8d5cd}.source-link{color:#fff;align-items:center;min-height:44px;font-weight:600;display:inline-flex}.path-list{border-top:3px solid}.path-list article{border-bottom:1px solid #555;grid-template-columns:minmax(150px,.45fr) minmax(0,1fr) auto;align-items:start;gap:28px;padding-block:24px;display:grid}.path-list h3,.path-list p{margin:0}.path-list a{color:#fff;white-space:nowrap;align-items:center;min-height:44px;display:inline-flex}.section{padding-block:clamp(78px,10vw,132px)}.section-intro{max-width:780px;margin-bottom:clamp(42px,6vw,72px)}.section-intro h2{max-width:14ch}.section-intro>p:last-child,.split-intro>p{max-width:58ch;color:var(--ink-soft);font-size:1.06rem}.split-intro{grid-template-columns:minmax(0,1fr) minmax(280px,.55fr);align-items:end;gap:clamp(40px,8vw,110px);max-width:none;display:grid}.split-intro h2{margin-bottom:0}.history{grid-template-columns:minmax(260px,.65fr) minmax(0,1.35fr);gap:clamp(50px,9vw,130px);display:grid}.history .section-intro{margin-bottom:0}.prose,.reading,.article-body{max-width:var(--reading)}.prose>p:not(.source-note),.article-body>p,.article-body>ul,.article-body>ol{margin-bottom:1.4em;font-family:Georgia,serif;font-size:1.23rem;line-height:1.58}.source-note,.reference-note,.catalogue-method{border-top:1px solid var(--rule);color:var(--ink-soft);margin-top:30px;padding-top:14px;font-size:13px}.measure-band{border-block:1px solid var(--ink);background:var(--paper)}.measure-table{border-top:3px solid var(--ink)}.measure-row{border-bottom:1px solid var(--rule);grid-template-columns:1fr 1.15fr 1.5fr;gap:28px;padding:21px 0;display:grid}.measure-row strong{font-family:Georgia,serif;font-size:1.24rem}.measure-row>span{color:var(--ink-soft)}.measure-head{letter-spacing:.05em;text-transform:uppercase;padding-block:13px;font-family:Courier New,monospace;font-size:12px;font-weight:700}.measure-head>span{color:var(--ink)}.media-groups{border-top:3px solid var(--ink);margin:0 0 34px}.media-groups>div{border-bottom:1px solid var(--rule);grid-template-columns:minmax(130px,.35fr) minmax(0,1fr);gap:28px;padding-block:18px;display:grid}.media-groups dt{font-family:Georgia,serif;font-size:1.3rem;font-weight:700}.media-groups dd{color:var(--ink-soft);margin:0}.event-model{grid-template-columns:minmax(260px,.7fr) minmax(0,1.3fr);gap:clamp(48px,9vw,120px);display:grid}.event-model .section-intro{margin-bottom:0}pre{border-left:5px solid var(--accent);background:var(--night);color:#f1efe9;margin:0 0 34px;padding:28px;font-family:Courier New,monospace;font-size:14px;line-height:1.7;overflow:auto}.field-notes{border-top:1px solid var(--ink);margin:0}.field-notes>div{border-bottom:1px solid var(--rule);grid-template-columns:150px 1fr;gap:24px;padding-block:18px;display:grid}.field-notes dt{color:var(--accent-dark);font-family:Courier New,monospace;font-size:13px;font-weight:700}.field-notes dd{color:var(--ink-soft);margin:0}.principles-band,.contribute-band{border-block:1px solid var(--ink);background:#e5e9f5}.principles-list{border-top:3px solid var(--ink);margin:0;padding:0;list-style:none}.principles-list>div,.principles-list li{border-bottom:1px solid #aeb6ca;grid-template-columns:minmax(210px,.55fr) minmax(0,1fr);gap:28px;padding-block:26px;display:grid}.principles-list dt{grid-template-columns:42px 1fr;gap:12px;font-family:Georgia,serif;font-size:1.45rem;font-weight:700;display:grid}.principles-list dt span{color:var(--accent-dark);font:700 13px/1.5 Courier New,monospace}.principles-list dd{color:#494d59;margin:0}.principle-number{color:var(--accent-dark);font-family:Courier New,monospace;font-size:13px;font-weight:700}.principles-list h3{margin-bottom:9px;font-size:1.55rem}.principles-list p{color:#494d59;max-width:68ch;margin-bottom:0}.privacy-note{border-left:5px solid var(--accent);max-width:850px;margin-top:48px;padding:8px 0 8px 24px}.privacy-note strong{font-family:Georgia,serif;font-size:1.45rem}.privacy-note p{color:#494d59;margin:8px 0 0}.project-list{border-top:3px solid var(--ink)}.project-list article{border-bottom:1px solid var(--rule);grid-template-columns:.55fr .65fr 1.5fr;gap:clamp(28px,5vw,72px);padding-block:38px;display:grid}.project-list h3{margin:0;font-size:clamp(2.1rem,4vw,3.3rem)}.project-list article>p:not(.project-type){color:var(--ink-soft);margin-bottom:0}.project-links{grid-column:3;padding-top:8px}.project-links a,.file-links a{align-items:center;min-height:44px;font-size:14px;font-weight:600;display:inline-flex}.catalogue-link{width:fit-content;margin-top:34px}.knowledge-band{background:var(--accent);color:#fff;padding-block:clamp(70px,8vw,104px)}.knowledge-layout{grid-template-columns:minmax(0,1fr) minmax(300px,.72fr);gap:clamp(48px,9vw,130px);display:grid}.knowledge-layout .section-label{color:#d7e0ff}.knowledge-layout h2{max-width:13ch;margin-bottom:0}.knowledge-layout>div:last-child>p{color:#e6eaff}.file-links{border-top:1px solid #ffffff8c;margin-top:28px;display:grid}.file-links a{color:#fff;border-bottom:1px solid #ffffff8c}.contribution-lanes{border-top:3px solid var(--ink);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.contribution-lanes article{border-bottom:1px solid var(--rule);padding:34px 36px 36px 0}.contribution-lanes article+article{border-left:1px solid var(--rule);padding-inline:36px 0}.contribution-lanes h3{margin-bottom:14px;font-size:clamp(1.8rem,3vw,2.5rem)}.contribution-lanes p:not(.project-type),.contribution-lanes li{color:var(--ink-soft)}.contribution-lanes ul{padding-left:1.25em}.contribution-lanes li+li{margin-top:8px}.contribution-lanes .project-links{grid-column:auto;margin-top:24px}.catalogue-hero{padding-block:clamp(62px,9vw,110px)}.catalogue-hero h1{max-width:14ch}.breadcrumbs{color:var(--ink-soft);gap:10px;margin-bottom:58px;font-size:14px;display:flex}.catalogue-band{border-block:1px solid var(--ink);background:var(--paper)}.catalogue-heading{grid-template-columns:.4fr 1fr;align-items:end;gap:40px;margin-bottom:42px;display:grid}.catalogue-heading h2{max-width:13ch;margin-bottom:0}.catalogue-filters{border-block:3px solid var(--ink) 1px solid var(--rule);grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-block:24px;display:grid}.catalogue-filters label{letter-spacing:.04em;text-transform:uppercase;gap:8px;font-family:Courier New,monospace;font-size:12px;font-weight:700;display:grid}.catalogue-filters select,.catalogue-filters input{border:1px solid var(--ink);background:var(--paper);width:100%;min-height:48px;color:var(--ink);text-transform:none;border-radius:0;padding:8px 38px 8px 12px;font:500 16px/1.3 Arial,sans-serif}.more-filters{border-bottom:1px solid var(--rule);grid-column:1/-1}.more-filters summary{cursor:pointer;letter-spacing:.04em;text-transform:uppercase;align-items:center;width:fit-content;min-height:48px;font-family:Courier New,monospace;font-size:12px;font-weight:700;display:flex}.more-filters>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-bottom:24px;display:grid}.reset-filters{justify-self:start}.catalogue-summary{border-bottom:1px solid var(--rule);grid-template-columns:minmax(190px,.35fr) minmax(0,1fr);align-items:start;gap:24px 48px;padding-block:18px 14px;display:grid}.catalogue-count{color:var(--ink-soft);margin:0 0 5px;font-family:Courier New,monospace;font-size:12px}.active-filters{color:var(--ink-soft);margin:0;font-size:14px}.catalogue-data{max-width:78ch;color:var(--ink-soft);margin:0 0 7px;font-size:14px}.catalogue-scroll-hint{color:var(--ink-soft);margin:0;font-size:13px;display:block}.catalogue,.catalogue-scroll,.article-body{min-width:0}.catalogue-scroll{width:100%;max-width:100%;margin-top:8px;overflow-x:auto}.catalogue table{table-layout:fixed;border-collapse:collapse;text-align:left;width:100%;min-width:980px}.catalogue .project-column{width:25%}.catalogue .media-column{width:24%}.catalogue .category-column{width:9%}.catalogue .capture-column{width:20%}.catalogue .evidence-column{width:22%}.catalogue th,.catalogue td{border-bottom:1px solid var(--rule);vertical-align:top;padding:14px 22px 14px 0}.catalogue thead th{color:var(--ink-soft);letter-spacing:.05em;text-transform:uppercase;padding-block:0;font-family:Courier New,monospace;font-size:11px}.sort-button{min-height:44px;color:inherit;cursor:pointer;font:inherit;letter-spacing:inherit;text-align:left;text-transform:inherit;white-space:nowrap;background:0 0;border:0;padding:0}.sort-button:after{content:"↕";color:var(--accent-dark);margin-left:7px;display:inline-block}.catalogue th[aria-sort=ascending] .sort-button:after{content:"↑"}.catalogue th[aria-sort=descending] .sort-button:after{content:"↓"}.catalogue tbody th{font-family:Arial,sans-serif}.catalogue tbody th a{align-items:center;width:fit-content;min-height:44px;font-family:Georgia,serif;font-size:1.28rem;display:inline-flex}.catalogue tbody th span,.catalogue td span{color:var(--ink-soft);margin-top:7px;font-size:14px;font-weight:400;display:block}.catalogue td{font-size:14px}.catalogue td:last-child>span:first-child{margin-top:0}.catalogue .evidence-links{flex-wrap:wrap;gap:0 16px;margin-top:3px;display:flex}.catalogue td:last-child a{align-items:center;min-height:44px;font-weight:600;display:inline-flex}.catalogue-empty{border-bottom:1px solid var(--rule);padding:22px 0}.article{grid-template-columns:minmax(0,1fr) 240px;align-items:start;gap:clamp(44px,8vw,110px);display:grid}.article>.article-body:only-child{grid-column:1/-1;width:min(100%,78ch);margin-inline:auto}.article-body h1{font-size:clamp(2.8rem,5vw,4.7rem)}.article-body h2{margin-top:2.5rem;font-size:clamp(2rem,3.4vw,3rem)}.article-body h3{margin-top:2rem}.article-body table{border-collapse:collapse;text-align:left;width:100%;margin-block:30px 38px}.article-body .catalogue-scroll table{min-width:760px}.article-body th,.article-body td{border-bottom:1px solid var(--rule);vertical-align:top;padding:14px 18px 14px 0}.article-body thead th{border-top:3px solid var(--ink);letter-spacing:.04em;text-transform:uppercase;font-family:Courier New,monospace;font-size:12px}.toc{border-top:3px solid var(--ink);padding-top:18px}.toc strong{letter-spacing:.05em;text-transform:uppercase;font-family:Courier New,monospace;font-size:12px}.toc ul{margin:12px 0 0;padding:0;list-style:none}.toc li{border-bottom:1px solid var(--rule)}.toc a{align-items:center;min-height:44px;font-size:14px;display:flex}.definition{border-bottom:1px solid var(--rule);grid-template-columns:160px 1fr;gap:24px;padding-block:18px;display:grid}.callout{border-left:5px solid var(--accent);margin-block:34px;padding:22px 0 22px 24px}.grid{border-top:3px solid var(--ink);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.card{border-bottom:1px solid var(--rule);padding:28px 32px 28px 0}.card:nth-child(2n){border-left:1px solid var(--rule);padding-inline:32px 0}.card p{color:var(--ink-soft)}.task-list{border-top:3px solid var(--ink);margin:0;padding:0;list-style:none}.task-list li{border-bottom:1px solid var(--rule)}.task-list a{min-height:76px;color:var(--ink);grid-template-columns:minmax(180px,.45fr) minmax(0,1fr);align-items:center;gap:24px;text-decoration:none;display:grid}.task-list a:hover strong{text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:5px;text-decoration-thickness:3px}.task-list strong{font-family:Georgia,serif;font-size:1.2rem}.task-list span{color:var(--ink-soft)}.contribution-note{border-top:1px solid var(--rule);margin-top:42px;padding-top:18px}.project-actions{flex-wrap:wrap;align-items:center;gap:12px 24px;display:flex}.project-actions>a:not(.button){align-items:center;min-height:44px;display:inline-flex}.article-body .project-links{grid-column:auto}.site-footer{background:var(--night);color:#fff;padding-block:64px 26px}.footer-grid{grid-template-columns:1.35fr repeat(3,minmax(150px,.62fr));gap:48px;display:grid}.site-footer .wordmark{color:#fff}.footer-grid>div p{color:#bbb8b1;max-width:42ch;margin-top:14px}.footer-grid nav{align-content:start;display:grid}.footer-grid nav p{color:#fff;letter-spacing:.05em;text-transform:uppercase;margin:0 0 8px;font-family:Courier New,monospace;font-size:12px;font-weight:700}.footer-grid nav a{color:#d8d5cd;align-items:center;min-height:44px;font-size:14px;display:flex}.footer-bottom{color:#aaa79f;border-top:1px solid #4b4b4b;justify-content:space-between;gap:20px;margin-top:52px;padding-top:16px;font-family:Courier New,monospace;font-size:12px;display:flex}.footer-actions{flex-wrap:wrap;align-items:center;gap:8px 18px;display:flex}.footer-actions span{color:#fff;text-transform:uppercase;font-weight:700}.footer-actions a{color:#bbb8b1;align-items:center;min-height:44px;display:inline-flex}.footer-page-meta{flex-wrap:wrap;gap:8px 18px;margin:0;display:flex}@media (width<=900px){.masthead p{display:none}.home-hero,.history,.event-model,.knowledge-layout,.article{grid-template-columns:minmax(0,1fr)}.hero-brief{max-width:520px}.article-grid,.split-intro,.catalogue-heading{grid-template-columns:1fr;align-items:start}.project-list article{grid-template-columns:.55fr 1fr}.project-list article>p:not(.project-type),.project-links{grid-column:2}.catalogue-filters,.catalogue-summary,.more-filters>div{grid-template-columns:1fr}.toc{order:-1}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div{grid-column:1/-1}}@media (width<=760px){.desktop-nav{display:none}.site-menu{border-top:1px solid var(--rule);display:block}.site-menu summary{cursor:pointer;justify-content:space-between;align-items:center;min-height:52px;font-size:14px;font-weight:700;list-style:none;display:flex}.site-menu summary::-webkit-details-marker{display:none}.site-menu summary:after{content:"+";font-family:Georgia,serif;font-size:24px;font-weight:400;line-height:1}.site-menu[open] summary:after{content:"−"}.mobile-nav{border-top:1px solid var(--rule);padding-bottom:14px;display:grid}.mobile-nav a{border-bottom:1px solid var(--rule);min-height:48px;color:var(--ink);align-items:center;font-size:16px;font-weight:600;text-decoration:none;display:flex}.mobile-nav a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:6px;text-decoration-thickness:3px}}@media (width<=640px){.shell{width:min(calc(100% - 28px), var(--shell))}.masthead{min-height:60px}.wordmark{font-size:23px}.home-hero,.hero{padding-block:38px 56px}h1{font-size:clamp(3rem,14vw,4.5rem)}h2{font-size:clamp(2.45rem,12vw,3.5rem)}.actions{flex-direction:column;align-items:stretch}.button,.action-link{justify-content:center;width:100%}.article-grid{gap:18px}.measure-head{display:none}.measure-row{grid-template-columns:1fr;gap:9px;padding-block:22px}.measure-row>span:before{color:var(--ink);letter-spacing:.05em;text-transform:uppercase;margin-bottom:2px;font-family:Courier New,monospace;font-size:11px;font-weight:700;display:block}.measure-row>span:nth-child(2):before{content:"Progress"}.measure-row>span:nth-child(3):before{content:"Identity"}pre{margin-inline:-14px;padding:22px 18px;font-size:12px}.field-notes>div,.principles-list>div,.principles-list li,.definition,.path-list article,.media-groups>div,.task-list a{grid-template-columns:1fr;gap:8px}.path-list a{white-space:normal}.project-list article{grid-template-columns:1fr;gap:12px}.project-list article>p:not(.project-type),.project-links{grid-column:1}.project-links{flex-direction:column;align-items:flex-start;gap:0}.contribution-lanes,.grid{grid-template-columns:1fr}.contribution-lanes article,.contribution-lanes article+article,.card,.card:nth-child(2n){border-left:0;padding:30px 0}.breadcrumbs{margin-bottom:42px}.footer-grid{grid-template-columns:1fr;gap:36px}.footer-grid>div{grid-column:auto}.footer-bottom{flex-direction:column;align-items:flex-start}.footer-page-meta{flex-direction:column}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}