:root{color-scheme:light;--paper:#f7f7f4;--surface:#fff;--ink:#11110f;--muted:#6f6f68;--line:rgba(17,17,15,.13);--accent:#6d35ff;--accent-soft:rgba(109,53,255,.08);--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 88% 2%,rgba(109,53,255,.09),transparent 34rem),var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:16px;z-index:99;background:var(--surface);padding:12px}.site-header{position:relative;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:28px;width:min(var(--max),calc(100% - 48px));margin:auto;padding:26px 0;border-bottom:1px solid var(--line)}.logo{display:inline-flex;align-items:center;gap:11px;text-decoration:none}.logo-mark{width:48px;height:48px}.logo-ring{fill:none;stroke:currentColor}.logo-core{fill:var(--accent)}.logo-words{display:flex;flex-direction:column}.logo-topical{margin-left:.08em;font-size:10px;font-weight:600;letter-spacing:.23em;line-height:1;text-transform:uppercase}.logo-authority{margin-top:3px;font-size:25px;font-weight:750;letter-spacing:-.065em;line-height:.9}.nav{display:flex;align-items:center;gap:22px}.nav a{font-size:12px;font-weight:680;text-decoration:none}.nav a:hover,.nav a[aria-current=page]{color:var(--accent)}.nav-toggle{display:none;border:1px solid var(--line);background:transparent;padding:10px 12px;border-radius:8px;font:inherit;font-weight:700}.hero,.content,.site-footer{width:min(var(--max),calc(100% - 48px));margin-left:auto;margin-right:auto}.hero{padding:clamp(70px,10vw,140px) 0 clamp(58px,8vw,100px)}.eyebrow{display:flex;align-items:center;gap:13px;margin:0 0 22px;color:var(--muted);font-size:11px;font-weight:750;letter-spacing:.14em;text-transform:uppercase}.eyebrow:before{content:"";width:32px;height:1px;background:var(--accent)}h1{max-width:1040px;margin:0;font-size:clamp(48px,7.2vw,106px);font-weight:650;line-height:.92;letter-spacing:-.068em}.accent{color:var(--accent)}.lead{max-width:800px;margin:34px 0 0;color:#41413c;font-size:clamp(19px,2vw,26px);line-height:1.5;letter-spacing:-.025em}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 17px;border:1px solid var(--ink);border-radius:9px;background:var(--ink);color:#fff;font-size:13px;font-weight:750;text-decoration:none}.button.alt{background:transparent;color:var(--ink);border-color:var(--line)}.button:hover{background:var(--accent);border-color:var(--accent);color:#fff}.content{padding-bottom:100px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.card{display:flex;flex-direction:column;min-height:245px;padding:30px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.55);text-decoration:none;transition:transform .2s,border-color .2s}.card:hover{transform:translateY(-3px);border-color:var(--accent)}.card-index{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.12em}.card h2,.card h3{margin:42px 0 12px;font-size:clamp(24px,3vw,38px);line-height:1;letter-spacing:-.04em}.card p{margin:0;color:var(--muted);line-height:1.55}.card-arrow{margin-top:auto;padding-top:24px;font-weight:800}.section{padding:74px 0;border-top:1px solid var(--line)}.section-label{margin:0 0 18px;color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.section h2{max-width:850px;margin:0 0 24px;font-size:clamp(34px,4.6vw,62px);line-height:1;letter-spacing:-.05em}.section h3{margin:0 0 12px;font-size:25px;letter-spacing:-.035em}.section p,.prose p,.prose li{max-width:790px;color:#44443f;font-family:Georgia,"Times New Roman",serif;font-size:18px;line-height:1.75}.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:50px 70px}.topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;margin:28px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}.topic-list li{padding:15px 0;border-bottom:1px solid var(--line);font-size:14px}.topic-list li:before{content:"→";margin-right:10px;color:var(--accent)}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.related a{padding:22px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.55);font-weight:750;text-decoration:none}.related a:hover{border-color:var(--accent);color:var(--accent)}.article-hero{width:min(1120px,calc(100% - 48px));margin:clamp(54px,8vw,110px) auto clamp(64px,9vw,110px)}.article-hero h1{font-size:clamp(48px,7.7vw,112px)}.meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px 30px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.meta a{display:inline-flex;align-items:center;gap:9px;text-decoration:none}.meta img{width:30px;height:30px;object-fit:cover;border-radius:50%;filter:grayscale(1)}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:clamp(54px,8vw,110px);width:min(1120px,calc(100% - 48px));margin:0 auto}.prose{min-width:0;font-family:Georgia,"Times New Roman",serif;font-size:18px;line-height:1.78}.prose>p:first-child{font-size:22px;line-height:1.65}.prose h2,.prose h3{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:-.035em;line-height:1.12;scroll-margin-top:28px}.prose h2{margin:86px 0 24px;font-size:clamp(32px,4vw,52px)}.prose h3{margin:46px 0 16px;font-size:clamp(23px,2.5vw,31px)}.prose p{margin:0 0 24px}.prose ul,.prose ol{margin:0 0 28px;padding-left:1.25em}.prose li{margin:.45em 0;padding-left:.25em}.table-wrap{width:100%;margin:34px 0 46px;overflow:auto;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.58)}table{width:100%;min-width:680px;border-collapse:collapse;font-family:Inter,sans-serif;font-size:13px;line-height:1.5}th,td{padding:15px 17px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}th{background:var(--accent-soft);font-size:11px;letter-spacing:.07em;text-transform:uppercase}tr:last-child td{border-bottom:0}.toc{position:sticky;top:28px;align-self:start;padding-left:22px;border-left:1px solid var(--line)}.toc p{margin:0 0 16px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.toc a{display:block;margin:0 0 11px;color:var(--muted);font-size:12px;line-height:1.35;text-decoration:none}.toc a:hover{color:var(--accent)}.source-box{margin:32px 0;padding:20px 22px;border-left:3px solid var(--accent);background:var(--accent-soft);font-family:Inter,sans-serif;font-size:14px;line-height:1.6}.source-box a{color:var(--accent);font-weight:750}.site-footer{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;padding:38px 0 50px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;line-height:1.6}.site-footer strong{color:var(--ink)}.footer-links a{display:block;margin:0 0 8px;text-decoration:none}.footer-links a:hover{color:var(--accent)}@media(max-width:980px){.nav{display:none;position:absolute;top:82px;left:0;right:0;flex-direction:column;align-items:flex-start;padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:12px}.nav.open{display:flex}.nav-toggle{display:block}.article-layout{grid-template-columns:1fr}.toc{display:none}}@media(max-width:680px){.site-header,.hero,.content,.site-footer,.article-hero,.article-layout{width:calc(100% - 36px)}.grid,.feature-grid,.topic-list,.related,.site-footer{grid-template-columns:1fr}.hero{padding-top:60px}.card{min-height:220px;padding:24px}.logo-mark{width:43px;height:43px}.logo-authority{font-size:22px}.site-footer{gap:22px}.article-hero h1,h1{font-size:clamp(45px,14vw,74px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}}
/* Visual semantics components */.centerpiece{margin:0 0 74px;padding:clamp(24px,4vw,44px);border:1px solid rgba(109,53,255,.28);border-radius:18px;background:linear-gradient(145deg,rgba(109,53,255,.09),rgba(255,255,255,.66))}.centerpiece h2{max-width:900px;margin:0 0 12px;font-size:clamp(30px,4vw,52px);line-height:1;letter-spacing:-.045em}.centerpiece-intro{max-width:780px;margin:0 0 28px;color:#44443f;line-height:1.6}.path-grid,.layer-grid,.step-grid,.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.path-card,.layer,.step,.metric{padding:20px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.72)}.path-card{text-decoration:none}.path-card:hover{border-color:var(--accent);color:var(--accent)}.path-card strong,.layer strong,.step strong,.metric strong{display:block;margin-bottom:8px}.path-card span,.layer span,.step span,.metric span{color:var(--muted);font-size:13px;line-height:1.45}.step-no{display:inline-grid;place-items:center;width:28px;height:28px;margin-bottom:18px;border-radius:50%;background:var(--accent);color:#fff;font-size:12px;font-weight:800}.flow{display:flex;align-items:stretch;gap:8px;overflow:auto}.flow .node{min-width:150px;flex:1;padding:18px;border:1px solid var(--line);border-radius:11px;background:#fff}.flow .arrow{align-self:center;color:var(--accent);font-size:22px}.checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.check{display:flex;align-items:flex-start;gap:11px;padding:15px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.72);font-size:14px;line-height:1.4}.check input{width:18px;height:18px;accent-color:var(--accent)}.score{display:flex;align-items:center;gap:14px;margin-top:20px}.meter{height:10px;flex:1;border-radius:10px;background:rgba(17,17,15,.08);overflow:hidden}.meter span{display:block;width:0;height:100%;background:var(--accent);transition:width .2s}.score output{min-width:52px;font-weight:800}.eav{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.eav label{font-size:12px;font-weight:750}.eav input{width:100%;margin-top:7px;padding:13px;border:1px solid var(--line);border-radius:9px;background:#fff;font:inherit}.eav-result{margin:18px 0 0;padding:16px;border-left:3px solid var(--accent);background:#fff}.mini-note{margin-top:18px;color:var(--muted);font-size:12px;line-height:1.5}.source-link{font-weight:750;color:var(--accent)}@media(max-width:900px){.path-grid,.layer-grid,.step-grid,.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:680px){.path-grid,.layer-grid,.step-grid,.metric-grid,.checklist,.eav{grid-template-columns:1fr}.flow{flex-direction:column}.flow .arrow{transform:rotate(90deg)}}

.process-map{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;list-style:none;padding:0;margin:24px 0 0}.process-map li{padding:18px;border:1px solid var(--line);border-radius:12px;background:#fff}.process-map li>span{display:grid;place-items:center;width:30px;height:30px;margin-bottom:14px;border-radius:50%;background:var(--accent);color:#fff;font-weight:800}.process-map strong,.process-map small{display:block}.process-map small{margin-top:7px;color:var(--muted);line-height:1.45}.semantic-diagram{display:flex;align-items:stretch;gap:10px;margin:24px 0 12px}.diagram-node{flex:1;min-height:108px;display:flex;flex-direction:column;justify-content:space-between;padding:17px;border:1px solid var(--line);border-radius:12px;background:#fff}.diagram-node span{color:var(--accent);font-weight:850}.diagram-arrow{align-self:center;color:var(--accent);font-size:24px}.diagram-description,.interpretation{color:var(--muted);font-size:14px;line-height:1.6}.example-box{border-left:4px solid var(--accent);background:rgba(109,53,255,.04);padding-left:clamp(20px,4vw,44px)}table caption{text-align:left;font-size:14px;color:var(--muted);padding:0 0 12px}.faq details{border-top:1px solid var(--line);padding:17px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:750}.faq details p{margin:12px 0 0;max-width:780px}.topic-list a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}
@media(max-width:900px){.process-map{grid-template-columns:repeat(2,minmax(0,1fr))}.semantic-diagram{display:grid;grid-template-columns:1fr}.diagram-arrow{transform:rotate(90deg)}}
@media(max-width:680px){.process-map{grid-template-columns:1fr}}