:root{--bh-white: #ffffff;--bh-cream: #f4eee0;--bh-black: #111111;--bh-red: #d33c2f;--bh-blue: #1c4b82;--bh-yellow: #e4aa24;--bh-gray: #e6e6e6;--bh-teal: #16706a;--bh-clay: #e0714a;--bh-plum: #453a63;--bh-mint: #dcebe5;--bh-blush: #f8e4d9;--bh-sky: #dee8f2;--bh-butter: #f9edcd;--sig-healthy: var(--bh-teal);--sig-watch: var(--bh-yellow);--sig-friction: var(--bh-clay);--sig-risk: var(--bh-red);--sig-trust: var(--bh-blue);--font-heading: "Outfit", sans-serif;--font-body: "Outfit", sans-serif}body,html{margin:0;padding:0;font-family:var(--font-body);background-color:var(--bh-white);color:var(--bh-black);overflow-x:hidden;line-height:1.5;word-wrap:break-word;overflow-wrap:break-word}svg{max-width:100%;height:auto}h1,h2,h3,h4{font-family:var(--font-heading);text-transform:none;font-weight:800;margin:0;line-height:1.1;letter-spacing:-.04em}p{font-weight:400;font-size:1.25rem;margin-top:0}.rect{display:block}.circle{border-radius:50%;display:flex;align-items:center;justify-content:center}.pill{border-radius:999px}.bg-red{background-color:var(--bh-red)!important}.bg-blue{background-color:var(--bh-blue)!important}.bg-yellow{background-color:var(--bh-yellow)!important}.bg-black{background-color:var(--bh-black)!important}.bg-white{background-color:var(--bh-white)!important}.bg-cream{background-color:var(--bh-cream)!important}.bg-gray{background-color:var(--bh-gray)!important}.bg-teal{background-color:var(--bh-teal)!important}.bg-clay{background-color:var(--bh-clay)!important}.bg-plum{background-color:var(--bh-plum)!important}.bg-mint{background-color:var(--bh-mint)!important}.bg-blush{background-color:var(--bh-blush)!important}.bg-sky{background-color:var(--bh-sky)!important}.bg-butter{background-color:var(--bh-butter)!important}.text-teal{color:var(--bh-teal)!important}.text-clay{color:var(--bh-clay)!important}.text-white{color:var(--bh-white)!important}.text-black{color:var(--bh-black)!important}.text-red{color:var(--bh-red)!important}.text-blue{color:var(--bh-blue)!important}.bh-btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-weight:600;font-size:1.1rem;text-transform:none;padding:16px 32px;cursor:pointer;border:none;transition:opacity .2s,transform .2s;letter-spacing:-.01em}.bh-btn:hover{opacity:.9;transform:translateY(-2px)}.bh-btn-black{background:var(--bh-black);color:var(--bh-white)}.bh-btn-red{background:var(--bh-red);color:var(--bh-white)}.bh-btn-blue{background:var(--bh-blue);color:var(--bh-white)}.bh-btn-yellow{background:var(--bh-yellow);color:var(--bh-black)}.bh-btn-teal{background:var(--bh-teal);color:var(--bh-white)}.bh-btn-clay{background:var(--bh-clay);color:var(--bh-black)}.bh-btn-white{background:var(--bh-white);color:var(--bh-black)}.bh-container{max-width:1280px;margin-left:auto;margin-right:auto;padding-left:clamp(24px,5vw,72px);padding-right:clamp(24px,5vw,72px);width:100%;box-sizing:border-box}.pn-nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:12px clamp(14px,2.4vw,26px);background:transparent;pointer-events:none}.pn-nav>*{pointer-events:auto}.pn-cluster{display:flex;flex-direction:row;align-items:stretch;background:var(--bh-white);border:1.5px solid var(--bh-black);overflow:hidden;width:fit-content;max-width:100%}.pn-cluster-top{display:flex;align-items:stretch;height:44px;box-sizing:border-box}.pn-cell{display:flex;align-items:center;justify-content:center;border-right:1.5px solid var(--bh-black)}.pn-cell:last-child{border-right:none}.pn-brand-cell{padding:0 17px;border-right:1.5px solid var(--bh-black)}.pn-wordmark{font-family:Outfit,sans-serif;font-size:1.3rem;font-weight:800;letter-spacing:-.06em;color:var(--bh-black);text-decoration:none;line-height:1;display:inline-flex;align-items:center;gap:10px}.pn-wordmark svg{flex-shrink:0}.pn-dot{color:var(--bh-red)}.pn-cluster-menu{display:flex;min-width:0}.pn-burger-cell{display:none}.pn-burger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:46px;height:100%;padding:0 13px;border:0;background:transparent;cursor:pointer;box-sizing:border-box}.pn-burger>span:not(.visually-hidden){display:block;width:100%;height:2px;background:var(--bh-black);transition:transform .22s ease,opacity .22s ease}.pn-cluster.is-open .pn-burger>span:nth-of-type(1){transform:translateY(7px) rotate(45deg)}.pn-cluster.is-open .pn-burger>span:nth-of-type(2){opacity:0}.pn-cluster.is-open .pn-burger>span:nth-of-type(3){transform:translateY(-7px) rotate(-45deg)}.pn-menu-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:row;align-items:stretch;flex-wrap:wrap}.pn-menu-list li{display:flex}.pn-menu-list a{display:flex;align-items:center;padding:0 14px;font-family:Outfit,sans-serif;font-size:.88rem;font-weight:500;letter-spacing:-.01em;color:var(--bh-black);text-decoration:none;white-space:nowrap;transition:color .2s,background .2s}.pn-menu-list a:hover{color:var(--bh-red);background:#0000000b}.pn-actions{display:flex;align-items:center;gap:10px;height:44px;box-sizing:border-box}.pn-cta{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;background:var(--bh-white);color:var(--bh-black);border:1.5px solid var(--bh-black);text-decoration:none;border-radius:999px;font-size:.85rem;font-weight:600;font-family:Outfit,sans-serif;white-space:nowrap;box-sizing:border-box;transition:background .2s,color .2s,border-color .2s,transform .2s}.pn-cta:hover{background:var(--bh-red);border-color:var(--bh-red);color:var(--bh-white);transform:translateY(-1px)}@media (max-width: 760px){.pn-cluster{flex-direction:column}.pn-brand-cell{flex:1 1 auto;justify-content:flex-start;border-right:1.5px solid var(--bh-black)}.pn-burger-cell{display:flex;border-right:none}.pn-cluster.is-open .pn-cluster-top{border-bottom:1.5px solid var(--bh-black)}.pn-cluster-menu{display:grid;grid-template-rows:0fr;transition:grid-template-rows .26s ease}.pn-cluster.is-open .pn-cluster-menu{grid-template-rows:1fr}.pn-menu-list{flex-direction:column;flex-wrap:nowrap;overflow:hidden;min-height:0}.pn-menu-list li{display:block}.pn-menu-list li+li{border-top:1.5px solid rgba(17,17,17,.14)}.pn-menu-list a{padding:12px 17px;font-size:.95rem}}@media (max-width: 640px){.pn-cluster-top{height:40px}.pn-brand-cell{padding:0 12px}.pn-wordmark{font-size:1.15rem}.pn-actions{height:40px}.pn-cta{padding:0 14px;height:40px;font-size:.8rem}}@media (prefers-reduced-motion: reduce){.pn-cluster-menu,.pn-burger>span:not(.visually-hidden){transition:none}}.bh-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:0}.hero-section{min-height:80vh;display:flex;flex-direction:column}.hero-primary{display:grid;grid-template-columns:5fr 7fr;flex:1;overflow:hidden}.hero-primary>*{min-width:0}.hero-left{background-color:var(--bh-white);padding:80px 64px;display:flex;flex-direction:column;justify-content:center}.hero-left h1{font-size:clamp(3rem,6vw,5rem);margin-bottom:24px}.hero-left p{font-size:1.5rem;max-width:36ch;margin-bottom:40px}.hero-right{position:relative;background-color:var(--bh-gray);overflow:hidden;display:flex;align-items:center;justify-content:center}.geo-composition{position:relative;width:100%;height:100%}.geo-rect-yellow{position:absolute;top:15%;right:15%;width:40%;height:60%;background-color:var(--bh-yellow)}.geo-circle-blue{position:absolute;bottom:10%;left:15%;width:50%;aspect-ratio:1;background-color:var(--bh-blue);border-radius:50%}.geo-triangle-red{position:absolute;top:5%;left:25%;width:0;height:0;border-left:200px solid transparent;border-right:200px solid transparent;border-bottom:350px solid var(--bh-red);mix-blend-mode:multiply}.info-band{display:grid;grid-template-columns:repeat(3,1fr)}.info-cell{padding:64px;color:var(--bh-white)}.info-cell h3{font-size:2rem;margin-bottom:16px}.info-cell p{font-size:1.1rem;margin:0;font-weight:300}.feature-split{display:grid;grid-template-columns:1fr 1fr}.feature-copy{padding:80px 64px;display:flex;flex-direction:column;justify-content:center}.feature-copy h2{font-size:3.5rem;margin-bottom:24px}.feature-copy p{font-size:1.3rem}.feature-art{display:flex;align-items:center;justify-content:center;padding:80px}.abstract-ui-block{background:var(--bh-white);padding:40px;width:80%;box-shadow:24px 24px 0 var(--bh-blue)}.abstract-ui-header{height:24px;width:100px;background:var(--bh-red);margin-bottom:32px}.abstract-line{height:16px;background:var(--bh-gray);margin-bottom:16px;width:100%}.abstract-line.short{width:60%}.abstract-line.medium{width:80%}.abstract-box{background:var(--bh-yellow);padding:24px;margin-top:32px}.bh-box{background:var(--bh-white);padding:48px}.bh-input{display:block;width:100%;padding:16px;background:var(--bh-gray);border:none;font-family:var(--font-body);font-size:1.1rem;margin-bottom:24px;box-sizing:border-box}.bh-label{display:block;font-weight:600;margin-bottom:8px;text-transform:none}@media (max-width: 1024px){.hero-primary{grid-template-columns:1fr}.hero-right{display:none}.info-band,.feature-split{grid-template-columns:1fr}}@media (max-width: 768px){.bh-split-screen{flex-direction:column!important}.bh-split-screen>div{flex:none!important;width:100%!important}.bh-grid-responsive{grid-template-columns:1fr!important}}.bh-split-screen{display:flex}.bh-grid-responsive{display:grid}.css-art-thread{position:relative;padding-left:32px;margin:24px 0}.css-art-thread:before{content:"";position:absolute;left:10px;top:5px;bottom:5px;width:4px;background:var(--bh-gray);z-index:1}.css-art-node{position:relative;margin-bottom:24px}.css-art-node:before{content:"";position:absolute;left:-28px;top:50%;transform:translateY(-50%);width:16px;height:16px;border-radius:50%;z-index:2;border:3px solid var(--bh-white)}.css-art-node-user:before{background:var(--bh-blue)}.css-art-node-agent:before{background:var(--bh-yellow)}.css-art-node-error:before{background:var(--bh-red);width:20px;height:20px;left:-30px;border-radius:0;transform:translateY(-50%) rotate(45deg)}.css-art-bubble{background:var(--bh-white);border:2px solid var(--bh-black);padding:12px 16px;font-size:.92rem;line-height:1.45;font-family:var(--font-body);word-break:normal;overflow-wrap:break-word}.css-art-bubble.error{border:2px solid var(--bh-clay);background:var(--bh-blush);color:#a63d16;font-weight:700;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase}.css-art-sentiment{display:flex;align-items:flex-end;height:60px;gap:4px;margin:24px 0;border-bottom:2px solid var(--bh-black)}.css-art-sentiment-bar{flex:1;min-width:12px;transition:height .3s}.css-art-sentiment-bar.pos{background:var(--bh-blue)}.css-art-sentiment-bar.neu{background:var(--bh-yellow);opacity:.5}.css-art-sentiment-bar.neg{background:var(--bh-red)}.css-art-stitching{display:flex;justify-content:space-between;align-items:center;position:relative;margin:32px 0;height:40px}.css-art-stitching:before{content:"";position:absolute;left:20px;right:20px;top:50%;height:4px;background:repeating-linear-gradient(90deg,var(--bh-black),var(--bh-black) 8px,transparent 8px,transparent 16px);z-index:1}.css-art-stitch-point{width:24px;height:24px;background:var(--bh-white);border:4px solid var(--bh-black);position:relative;z-index:2}.css-art-stitch-point.highlight{background:var(--bh-yellow);border-color:var(--bh-red);border-radius:50%;transform:scale(1.2)}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}::selection{background:var(--bh-yellow);color:var(--bh-black)}:root{accent-color:var(--bh-red);caret-color:var(--bh-red)}:focus-visible{outline:3px solid var(--bh-red);outline-offset:3px}.bg-black :focus-visible,.bg-blue :focus-visible,.text-white :focus-visible{outline-color:var(--bh-yellow)}.af-error{font-family:var(--font-body);font-size:.9rem;font-weight:600;line-height:1.5;color:var(--bh-red);max-width:48ch;margin:14px auto 0}.af-error:before{content:"";display:inline-block;width:8px;height:8px;background:var(--bh-red);margin-right:10px;vertical-align:1px}.af-success{display:flex;flex-direction:column;gap:8px;max-width:480px;margin:0 auto;padding:22px 26px;background:var(--bh-cream);border:2px solid var(--bh-black);text-align:left}.af-success:focus{outline:none}.af-success strong{font-family:var(--font-heading);font-size:1.25rem;font-weight:800;letter-spacing:-.02em;line-height:1.1;color:var(--bh-black)}.af-success span{font-size:.95rem;font-weight:400;line-height:1.6;color:var(--bh-black);opacity:.75}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}.pn-cta:hover{transform:none}}[hidden]{display:none!important}:root{--bp-ink: #1a1a1a;--bp-ink-soft: #4b4b4b;--bp-ink-faint: #6a6a6a;--bp-rule: rgba(17, 17, 17, .16);--bp-body: 1.1875rem;--bp-inset: 1.0625rem;--bp-note: .9375rem;--bp-label: .72rem;--bp-lh-body: 1.72;--bp-lh-inset: 1.6}.sq{display:inline-block;width:10px;height:10px;flex:0 0 10px;border:1.5px solid var(--bh-black);box-sizing:border-box}.bp-dots:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(var(--dot, rgba(17, 17, 17, .14)) 1.2px,transparent 1.2px);background-size:22px 22px;pointer-events:none;z-index:0}.bp-dots>*{position:relative;z-index:1}.bp-meta b,.fn-v,.dv-v,.rate-v,.tr-v{font-variant-numeric:tabular-nums}html{scroll-behavior:smooth}html,body{overflow-x:clip;overflow-y:visible}body{background:var(--bh-cream)}.bp-hero{background:var(--bh-cream);border-bottom:3px solid var(--bh-black);position:relative;overflow:hidden}.bp-hero-grid{display:grid;grid-template-columns:minmax(0,55fr) minmax(0,45fr);align-items:stretch}.bp-hero-text{--gutter: max(clamp(24px, 5vw, 72px), calc((100vw - 1280px)/2 + clamp(24px, 5vw, 72px)) );padding:clamp(104px,11vw,148px) clamp(24px,4vw,60px) clamp(48px,6vw,72px) var(--gutter);display:flex;flex-direction:column;justify-content:center;min-width:0}.bp-hero-art{border-left:3px solid var(--bh-black);background:var(--bh-white);display:flex;align-items:center;justify-content:center;padding:clamp(28px,3.5vw,48px) clamp(20px,3vw,40px);min-width:0}.bp-hero-art svg{width:100%;max-width:470px;display:block}.bp-eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.82rem;font-weight:600;letter-spacing:-.005em;margin:0 0 20px;color:#1111119e}.bp-back{display:inline-flex;align-items:center;gap:9px;font-size:.84rem;font-weight:600;letter-spacing:-.005em;color:#1119;text-decoration:none;margin:0 0 20px;transition:color .18s ease,gap .18s ease}.bp-back:hover{color:var(--bh-black);gap:13px}.bp-back--end{margin:clamp(40px,5vw,56px) 0 0;padding-top:26px;border-top:2px solid var(--bh-black);width:100%}.bp-h1{font-size:clamp(2.1rem,4.1vw,3.5rem);font-weight:800;line-height:1.03;letter-spacing:-.042em;margin:0 0 22px;max-width:17ch;text-wrap:balance}.bp-dek{font-size:clamp(1.1rem,1.45vw,1.28rem);font-weight:400;line-height:1.6;color:var(--bp-ink-soft);max-width:50ch;margin:0 0 30px}.bp-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;padding-top:20px;border-top:2px solid var(--bh-black);font-size:.9rem;font-weight:500;color:var(--bp-ink-faint)}.bp-meta span{display:inline-flex;align-items:center;gap:8px}.bp-meta b{font-weight:600;color:var(--bh-black)}.bp-shell{max-width:1400px;margin:0 auto;padding:0 clamp(20px,3vw,40px);display:grid;grid-template-columns:184px minmax(0,1fr) 276px;column-gap:clamp(22px,2.4vw,36px);align-items:start;background:var(--bh-cream)}.bp-toc{position:sticky;top:104px;padding:clamp(40px,5vw,64px) 0 40px;min-width:0}.bp-toc-k{display:flex;align-items:center;gap:9px;font-size:var(--bp-label);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--bp-ink-faint);margin:0 0 16px}.bp-toc-pct{margin-left:auto;font-variant-numeric:tabular-nums;font-weight:800;color:var(--bh-black)}.bp-toc-rail{position:relative;padding-left:20px}.bp-toc-rail:before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;background:#11111129}.bp-toc-fill{position:absolute;left:0;top:4px;width:3px;height:0;background:var(--bh-black);will-change:height}.bp-toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:3px}.bp-toc-list a{display:flex;align-items:flex-start;gap:10px;padding:8px 0;font-size:.9rem;font-weight:400;line-height:1.38;letter-spacing:-.008em;color:var(--bp-ink-soft);text-decoration:none;transition:color .18s ease}.bp-toc-list a .sq{margin-top:5px;border-color:#1111114d;background:transparent;transition:background .18s ease,border-color .18s ease}.bp-toc-list a:hover{color:var(--bh-black)}.bp-toc-list a.is-read{color:var(--bp-ink-faint)}.bp-toc-list a.is-read .sq{background:#11111147;border-color:#1116}.bp-toc-list a.is-on{color:var(--bh-black);font-weight:700}.bp-toc-list a.is-on .sq{background:var(--c);border-color:var(--bh-black)}.bp-article{background:var(--bh-white);padding:clamp(44px,5vw,68px) clamp(24px,2.8vw,40px) clamp(60px,7vw,92px);border-left:2px solid var(--bh-black);border-right:2px solid var(--bh-black);min-width:0}.bp-sec{scroll-margin-top:96px}.bp-sec+.bp-sec{margin-top:clamp(44px,5vw,64px);padding-top:clamp(40px,4.5vw,56px);border-top:2px solid var(--bh-black)}.bp-h2{display:flex;align-items:baseline;gap:12px;font-size:clamp(1.6rem,2.5vw,2.2rem);font-weight:800;line-height:1.1;letter-spacing:-.035em;margin:0 0 22px;text-wrap:balance}.bp-h2 .sq{margin-top:0;transform:translateY(-2px)}.bp-h3{font-size:1.24rem;font-weight:700;letter-spacing:-.022em;line-height:1.3;margin:34px 0 14px}.bp-sec>p{font-size:var(--bp-body);font-weight:400;line-height:var(--bp-lh-body);color:var(--bp-ink);margin:0 0 22px;max-width:50ch}.bp-sec>p:last-child{margin-bottom:0}.bp-article b,.bp-article strong{font-weight:600;color:var(--bh-black)}.bp-sec>p a,.bp-list a,.bp-fig figcaption a{color:var(--bh-black);text-decoration:none;box-shadow:inset 0 -2px 0 var(--bh-yellow);transition:box-shadow .18s ease}.bp-sec>p a:hover,.bp-list a:hover,.bp-fig figcaption a:hover{box-shadow:inset 0 -1.1em 0 var(--bh-butter)}.bp-list{list-style:none;margin:0 0 26px;padding:0;display:flex;flex-direction:column;gap:14px;max-width:52ch}.bp-list li{display:flex;align-items:baseline;gap:13px;font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);color:var(--bp-ink)}.bp-list li .sq{transform:translateY(-1px)}.bp-pull{margin:34px 0;padding:4px 0 4px 24px;border-left:4px solid var(--bh-black);max-width:54ch}.bp-pull p{font-size:clamp(1.15rem,1.7vw,1.42rem);font-weight:600;line-height:1.32;letter-spacing:-.028em;color:var(--bh-black);margin:0}.bp-summary{margin:30px 0;padding:24px;background:var(--bh-black);color:var(--bh-cream);border:3px solid var(--bh-black)}.bp-summary-h{margin:0 0 18px;color:var(--bh-cream);font-size:1.22rem;font-weight:800;line-height:1.2;letter-spacing:-.025em}.bp-summary ul{list-style:none;margin:0;padding:0}.bp-summary li{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-top:1px solid rgba(244,238,224,.22);font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);color:#f4eee0eb}.bp-summary li .sq{margin-top:4px;border-color:var(--bh-cream)}.bp-summary b{color:var(--bh-cream)}.obs-stack .bp-fig-head{background:var(--bh-cream)}.obs-layer{display:grid;grid-template-columns:minmax(150px,.8fr) minmax(0,1.6fr);gap:20px;padding:20px 18px;background:var(--layer);border-bottom:2px solid var(--bh-black)}.obs-layer-name{display:flex;flex-direction:column;gap:5px}.obs-layer-name span{font-size:.68rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#1111118f}.obs-layer-name b{font-size:1.06rem;line-height:1.25}.obs-layer>p{margin:0;font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);color:var(--bp-ink)}.bp-table-wrap{width:100%;overflow-x:auto;margin:30px 0 34px;border:3px solid var(--bh-black);background:var(--bh-cream);scrollbar-color:var(--bh-blue) var(--bh-gray);scrollbar-width:thin}.bp-table-wrap:focus-visible{outline:3px solid var(--bh-red);outline-offset:4px}.bp-table-hint{display:none}.bp-table{width:100%;min-width:560px;border-collapse:collapse;font-size:1rem;line-height:1.52;text-align:left}.bp-table th,.bp-table td{padding:15px 17px;vertical-align:top;border-right:1.5px solid rgba(17,17,17,.2);border-bottom:1.5px solid rgba(17,17,17,.16)}.bp-table th:last-child,.bp-table td:last-child{border-right:0}.bp-table tbody tr:last-child td{border-bottom:0}.bp-table th{background:var(--bh-black);color:var(--bh-cream);font-size:var(--bp-label);font-weight:800;letter-spacing:.1em;text-transform:uppercase}.bp-table td{font-weight:400;color:var(--bp-ink)}.bp-table td:first-child{font-weight:700;color:var(--bh-black)}.bp-table tbody tr:nth-child(2n) td{background:#ffffff8c}.bp-table--metrics td:nth-child(2){font-weight:600;color:var(--bh-black)}.failure-rail{border-top:3px solid var(--bh-black);border-bottom:3px solid var(--bh-black);margin:18px 0 30px}.failure-row{display:grid;grid-template-columns:72px minmax(130px,.7fr) minmax(0,1.5fr);align-items:baseline;gap:14px;padding:15px 0;border-bottom:1.5px solid rgba(17,17,17,.18)}.failure-row:last-child{border-bottom:0}.failure-signal{display:inline-flex;justify-content:center;padding:5px 7px;background:var(--signal);border:1.5px solid var(--bh-black);color:var(--bh-black);font-size:.64rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase}.failure-row:first-child .failure-signal,.failure-row:nth-child(4) .failure-signal,.failure-row:last-child .failure-signal{color:var(--bh-white)}.failure-row>b{font-size:1.06rem}.failure-row>p{margin:0;font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);color:var(--bp-ink)}.object-map{padding:22px 18px;display:flex;flex-direction:column}.object-line{display:grid;grid-template-columns:150px minmax(0,1fr);align-items:center;gap:18px}.object-kind{display:block;padding:10px 12px;background:var(--object);border:2px solid var(--bh-black);font-size:.74rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;text-align:center}.object-copy{font-size:var(--bp-inset);font-weight:400;line-height:1.45;color:var(--bp-ink)}.object-map>i{display:block;width:2px;height:14px;margin-left:74px;background:var(--bh-black)}.investigation-flow{padding:4px 18px}.flow-step{display:grid;grid-template-columns:72px minmax(150px,.8fr) minmax(0,1.4fr);align-items:baseline;gap:16px;padding:17px 0;border-bottom:1.5px solid rgba(17,17,17,.16)}.flow-step:last-child{border-bottom:0}.flow-step>span{padding:6px 8px;border:1.5px solid var(--bh-black);background:var(--flow);font-size:.64rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;text-align:center}.flow-step:nth-child(1)>span,.flow-step:nth-child(4)>span,.flow-step:nth-child(5)>span{color:var(--bh-white)}.flow-step>b{font-size:1.06rem;line-height:1.35}.flow-step>p{margin:0;font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);color:var(--bp-ink)}.implementation-list{margin:28px 0 34px;border-top:3px solid var(--bh-black)}.implementation-list>div{display:grid;grid-template-columns:14px minmax(150px,.8fr) minmax(0,1.5fr);align-items:baseline;gap:14px;padding:17px 0;border-bottom:1.5px solid rgba(17,17,17,.18)}.implementation-list h3{margin:0;font-size:1.06rem;font-weight:700;letter-spacing:-.015em}.implementation-list p{margin:0;font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);color:var(--bp-ink)}.bp-fig{margin:34px 0;background:var(--bh-cream);border:3px solid var(--bh-black)}.bp-fig-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 16px;padding:13px 18px;border-bottom:2px solid var(--bh-black)}.bp-fig-k{display:flex;align-items:center;gap:9px;font-size:.7rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;margin:0}.bp-fig-n{font-size:.72rem;font-weight:600;letter-spacing:.02em;color:#11111180}.bp-fig-body{padding:22px 18px 20px}.bp-fig figcaption{padding:14px 18px 16px;border-top:1.5px solid var(--bp-rule);font-size:var(--bp-note);font-weight:400;line-height:1.55;color:var(--bp-ink-faint);margin:0}.bp-fig-body svg{display:block;width:100%;height:auto}.fn{display:flex;flex-direction:column;gap:3px}.fn-row{display:grid;grid-template-columns:minmax(96px,1.1fr) minmax(0,3fr) 52px;align-items:center;gap:12px}.fn-n{font-size:.78rem;font-weight:500;line-height:1.25;color:#111111c7;display:flex;align-items:center;gap:8px;min-width:0}.fn-bar{width:var(--enter);height:26px;display:flex;border:1.5px solid var(--bh-black);box-sizing:border-box;overflow:hidden;animation:fn-in .5s cubic-bezier(.2,.85,.25,1) both;animation-delay:var(--d, 0s);transform-origin:left center}@keyframes fn-in{0%{transform:scaleX(.02);opacity:0}to{transform:scaleX(1);opacity:1}}.fn-pass{width:var(--pass);background:repeating-linear-gradient(135deg,rgba(17,17,17,.1) 0 3px,transparent 3px 7px)}.fn-fail{flex:1;background:var(--c);border-left:1.5px solid var(--bh-black)}.fn-v{font-size:.8rem;font-weight:600;text-align:right}.fn-row--out .fn-bar{background:var(--bh-teal);border-color:var(--bh-black)}.fn-row--out .fn-pass{background:none}.fn-row--out .fn-n,.fn-row--out .fn-v{font-weight:700;color:var(--bh-black)}.rate{display:flex;flex-direction:column;gap:0}.rate-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:baseline;gap:14px;padding:12px 0;border-bottom:1.5px solid rgba(17,17,17,.12)}.rate-row:last-child{border-bottom:0}.rate-n{display:flex;align-items:baseline;gap:10px;font-size:.92rem;font-weight:500}.rate-sub{font-size:.76rem;font-weight:300;color:#11111185}.rate-v{font-size:1.12rem;font-weight:800;letter-spacing:-.03em}.rate-row.is-hot{background:var(--bh-blush);margin:0;padding:12px;border-bottom-color:#1113}.dv{display:flex;flex-direction:column;gap:2px}.dv-head,.dv-row,.dv-foot{display:grid;grid-template-columns:minmax(88px,118px) minmax(0,1fr) 42px;gap:12px}.dv-head{margin-bottom:4px}.dv-row{align-items:center}.dv-axis-k{grid-column:2;text-align:center;font-size:.66rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;color:#1111118c}.dv-n{font-size:.78rem;font-weight:500;color:#111111c7;display:flex;align-items:center;gap:8px;min-width:0}.dv-track{position:relative;height:22px;border-bottom:1.5px solid rgba(17,17,17,.1)}.dv-track:before{content:"";position:absolute;left:50%;top:-1px;bottom:-1px;width:2px;background:var(--bh-black)}.dv-bar{position:absolute;top:5px;height:12px;background:var(--c);border:1.5px solid var(--bh-black);box-sizing:border-box;left:var(--l);width:var(--w);animation:dv-in .5s cubic-bezier(.2,.85,.25,1) both;animation-delay:var(--dl, 0s)}@keyframes dv-in{0%{width:0}to{width:var(--w)}}.dv-v{font-size:.82rem;font-weight:700;text-align:right}.dv-foot{font-size:.66rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#1111116b;margin-top:10px}.dv-foot span{grid-column:2;grid-row:1}.dv-foot span:first-child{justify-self:start}.dv-foot span:last-child{justify-self:end}.turn-card{border:3px solid var(--bh-black);background:var(--bh-cream);margin:34px 0}.turn-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 16px;background:var(--bh-black);color:var(--bh-cream);font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.turn-row{display:flex;gap:14px;padding:15px 16px;border-bottom:1.5px solid rgba(17,17,17,.12)}.turn-row:last-child{border-bottom:0}.turn-id{flex:0 0 auto;display:flex;align-items:center;gap:7px;font-size:.78rem;font-weight:700;letter-spacing:.05em;color:#1111118c;padding-top:2px}.turn-t{font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);margin:0;color:var(--bp-ink)}.turn-row.is-hot{background:var(--bh-blush)}.turn-row.is-hot .turn-t{font-weight:500;color:var(--bh-black)}.bp-code{margin:0;padding:20px 18px;overflow-x:auto;background:var(--bh-black);color:var(--bh-cream);font-family:SFMono-Regular,ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.86rem;line-height:1.62;-moz-tab-size:2;tab-size:2}.bp-code b{color:var(--bh-yellow);font-weight:400}.bp-code i{color:#9fc3e8;font-style:normal}.bp-code u{color:#f4eee073;text-decoration:none}.bp-code code{font:inherit;color:inherit;background:none;border:0;padding:0;white-space:pre}.bp-sec p code,.bp-list code,.bp-table code{font-family:SFMono-Regular,ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.88em;padding:1px 4px;margin:0 -1px;background:var(--bh-butter);border:1px solid rgba(17,17,17,.18);white-space:nowrap}.bp-inline-cta{margin:clamp(40px,5vw,58px) 0;background:var(--bh-blue);color:var(--bh-cream);border:3px solid var(--bh-black);padding:clamp(26px,3.2vw,36px) clamp(24px,3vw,34px) clamp(26px,3.2vw,34px)}.bp-inline-cta .sig{justify-content:flex-start;gap:7px;margin-bottom:22px}.bp-inline-cta .sig i{width:14px;height:14px;border-width:2px;border-color:var(--bh-black)}.bp-inline-cta .bp-inline-h{font-size:clamp(1.4rem,2.1vw,1.78rem);font-weight:800;letter-spacing:-.034em;line-height:1.14;margin:0 0 12px;color:var(--bh-cream);max-width:20ch}.bp-inline-cta p{font-size:var(--bp-inset);font-weight:400;line-height:var(--bp-lh-inset);color:#f4eee0db;margin:0 0 26px;max-width:46ch}.bp-inline-btn{display:inline-flex;align-items:center;gap:12px;background:var(--bh-cream);color:var(--bh-black);border-radius:999px;padding:15px 30px;font-size:1.02rem;font-weight:700;letter-spacing:-.012em;text-decoration:none;transition:transform .18s ease,background .18s ease,gap .18s ease}.bp-inline-btn:hover{transform:translateY(-2px);background:var(--bh-yellow);gap:16px}.bp-aside{position:sticky;top:104px;padding:clamp(40px,5vw,64px) 0 40px;min-width:0}.bp-card{background:var(--bh-white);border:3px solid var(--bh-black)}.bp-card-body{padding:20px 18px 0}.bp-card-k{display:flex;align-items:center;gap:9px;font-size:.7rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;margin:0 0 14px}.bp-card .bp-card-h{font-size:1.24rem;font-weight:800;line-height:1.16;letter-spacing:-.032em;color:var(--bh-black);margin:0 0 10px}.bp-card p{font-size:.96rem;font-weight:400;line-height:1.55;color:var(--bp-ink-soft);margin:0 0 20px}.bp-card-act{padding-bottom:20px}.bp-card-btn{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--bh-red);color:var(--bh-white);border-radius:999px;padding:14px 22px;font-size:.98rem;font-weight:700;letter-spacing:-.012em;text-decoration:none;transition:transform .18s ease,background .18s ease}.bp-card-btn:hover{transform:translateY(-2px);background:var(--bh-black)}.bp-card-alt{display:block;text-align:center;font-size:.9rem;font-weight:600;color:var(--bp-ink-soft);text-decoration:none;padding:12px 0 0;transition:color .18s ease}.bp-card-alt:hover{color:var(--bh-black)}.bp-card-note{border-top:1.5px solid rgba(17,17,17,.14);padding:12px 20px 13px;font-size:.74rem;font-weight:400;line-height:1.5;color:#1111118c;margin:0}.bp-stats{margin-top:26px;border-top:2px solid var(--bh-black)}.bp-stat{display:flex;align-items:baseline;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1.5px solid rgba(17,17,17,.12)}.bp-stat-k{display:flex;align-items:center;gap:8px;font-size:.76rem;font-weight:400;color:#1119}.bp-stat-n{font-size:.95rem;font-weight:700;letter-spacing:-.02em}.bi-head{background:var(--bh-cream);border-bottom:3px solid var(--bh-black);padding:clamp(116px,13vw,172px) 0 clamp(56px,7vw,84px);position:relative;overflow:hidden}.bi-sig{display:flex;gap:8px;margin-bottom:28px}.bi-sig i{display:block;width:16px;height:16px;border:2px solid var(--bh-black)}.bi-h1{font-size:clamp(2.2rem,5vw,4rem);font-weight:800;line-height:1.02;letter-spacing:-.044em;margin:0 0 22px;max-width:16ch;text-wrap:balance}.bi-dek{font-size:clamp(1.08rem,1.45vw,1.26rem);font-weight:400;line-height:1.6;color:var(--bp-ink-soft);max-width:58ch;margin:0}.bi-lead-sec{background:var(--bh-white);border-bottom:3px solid var(--bh-black)}.bi-lead{display:grid;grid-template-columns:minmax(0,47fr) minmax(0,53fr);align-items:stretch;text-decoration:none;color:inherit}.bi-lead-art{background:var(--bh-cream);border-right:3px solid var(--bh-black);display:flex;align-items:center;justify-content:center;padding:clamp(36px,5vw,64px) clamp(24px,4vw,56px);min-width:0}.bi-lead-art svg{width:100%;max-width:540px;display:block;transition:transform .35s cubic-bezier(.2,.85,.25,1)}.bi-lead:hover .bi-lead-art svg{transform:translateY(-4px)}.bi-lead-body{--gutter: max(clamp(24px, 4vw, 56px), calc((100vw - 1280px)/2 + clamp(24px, 5vw, 72px)) );padding:clamp(40px,5.5vw,76px) var(--gutter) clamp(40px,5.5vw,76px) clamp(28px,4vw,56px);display:flex;flex-direction:column;justify-content:center;min-width:0}.bi-lead-h2{font-size:clamp(1.7rem,2.9vw,2.6rem);font-weight:800;line-height:1.06;letter-spacing:-.04em;margin:0 0 16px;max-width:18ch;text-wrap:balance}.bi-lead-dek{font-size:clamp(1.04rem,1.3vw,1.16rem);font-weight:400;line-height:1.6;color:var(--bp-ink-soft);max-width:48ch;margin:0 0 24px}.bi-lead-meta{display:flex;flex-wrap:wrap;gap:8px 20px;padding-top:18px;border-top:2px solid var(--bh-black);font-size:.9rem;font-weight:500;color:var(--bp-ink-faint);margin:0 0 26px}.bi-lead-meta b{font-weight:700;color:var(--bh-black);font-variant-numeric:tabular-nums}.bi-lead-go{display:inline-flex;align-items:center;gap:10px;align-self:flex-start;background:var(--bh-black);color:var(--bh-cream);border-radius:999px;padding:13px 28px;font-size:.95rem;font-weight:700;transition:background .18s ease,gap .18s ease}.bi-lead:hover .bi-lead-go{background:var(--bh-red);gap:15px}.close-sec{background:var(--bh-black);color:var(--bh-cream);padding:clamp(72px,9vw,128px) 0;text-align:center;position:relative;overflow:hidden;border-top:3px solid var(--bh-black)}.sig{display:flex;justify-content:center;gap:8px;margin-bottom:30px}.sig i{display:block;width:18px;height:18px;border:2px solid var(--bh-cream)}.close-h2{font-size:clamp(2rem,4vw,3.4rem);font-weight:800;line-height:1.05;letter-spacing:-.042em;margin:0 auto 22px;max-width:18ch;color:var(--bh-cream);text-wrap:balance}.close-p{font-size:clamp(1.04rem,1.3vw,1.18rem);font-weight:400;line-height:1.65;color:#f4eee0c2;max-width:56ch;margin:0 auto 36px}.close-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;margin-bottom:24px}.pill-red,.pill-ghost{display:inline-flex;align-items:center;gap:10px;border-radius:999px;padding:15px 32px;font-size:1rem;font-weight:700;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.pill-red{background:var(--bh-red);color:var(--bh-white);border:3px solid var(--bh-cream);box-shadow:6px 6px 0 var(--bh-cream)}.pill-red:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--bh-cream)}.pill-ghost{background:transparent;color:var(--bh-cream);border:3px solid rgba(244,238,224,.5)}.pill-ghost:hover{border-color:var(--bh-cream);background:#f4eee014}.close-note{font-size:.84rem;font-weight:500;color:#f4eee08c;margin:0}.ft{background:var(--bh-black);color:var(--bh-cream);border-top:3px solid var(--bh-cream)}.ft-inner{padding-top:60px;padding-bottom:34px}.ft-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,1fr);gap:44px;margin-bottom:48px}.ft-brand .pn-wordmark{color:var(--bh-cream);margin-bottom:14px}.ft-brand p{font-size:.92rem;font-weight:300;line-height:1.6;color:#f4eee09e;max-width:30ch;margin:0}.ft-k{display:flex;align-items:center;gap:8px;font-size:.8rem;font-weight:700;color:var(--bh-cream);margin:0 0 16px}.ft-k .sq{border-color:#f4eee080}.ft-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}.ft-col a{color:#f4eee0b8;text-decoration:none;font-size:.9rem;font-weight:500;transition:color .18s ease}.ft-col a:hover{color:var(--bh-yellow)}.ft-base{border-top:1.5px solid rgba(244,238,224,.2);padding-top:22px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}.ft-base p{font-size:.8rem;font-weight:400;color:#f4eee073;margin:0}@media (max-width: 1160px){.bp-shell{grid-template-columns:184px minmax(0,1fr)}.bp-aside{grid-column:1 / -1;position:static;padding-top:0;padding-bottom:clamp(48px,6vw,72px);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,300px);column-gap:clamp(26px,3.4vw,48px);align-items:start}.bp-card-body{padding:24px 24px 0}.bp-card-info{padding-left:24px;padding-right:24px}.bp-stats{margin:0}}@media (max-width: 900px){.bi-lead{grid-template-columns:minmax(0,1fr)}.bi-lead-art{border-right:0;border-top:3px solid var(--bh-black);order:2}.bi-lead-body{padding:clamp(36px,7vw,52px) clamp(24px,5vw,48px);order:1}.bi-h1{max-width:20ch}.bp-hero-grid{grid-template-columns:minmax(0,1fr)}.bp-hero-text{padding:clamp(96px,22vw,130px) clamp(24px,5vw,48px) 40px}.bp-hero-art{border-left:0;border-top:3px solid var(--bh-black);padding:32px 24px}.bp-h1{max-width:20ch}.bp-shell{grid-template-columns:minmax(0,1fr)}.bp-toc{position:static;padding:36px 0 0}.bp-toc-rail{border:2px solid var(--bh-black);background:var(--bh-white);padding:16px 18px 16px 32px}.bp-toc-rail:before,.bp-toc-fill{left:20px;top:20px}.bp-toc-rail:before{bottom:20px}.bp-toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 18px}.bp-article{border-left:0;border-right:0;margin:0 calc(-1*clamp(20px,3vw,40px));padding-left:clamp(20px,5vw,40px);padding-right:clamp(20px,5vw,40px)}.bp-aside{grid-template-columns:minmax(0,1fr)}.bp-stats{margin:30px 0 0}.ft-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px}.ft-brand{grid-column:1 / -1}}@media (max-width: 620px){.bp-toc-list{grid-template-columns:minmax(0,1fr)}.fn-row{grid-template-columns:minmax(0,1fr);gap:5px;margin-bottom:10px}.fn-v{text-align:left}.rate-row{grid-template-columns:minmax(0,1fr) auto}.rate-sub{grid-column:1 / -1}.dv-head,.dv-row,.dv-foot{grid-template-columns:88px minmax(0,1fr) 38px;gap:8px}.bp-h2{gap:10px}.obs-layer,.object-line,.failure-row,.flow-step,.implementation-list>div{grid-template-columns:minmax(0,1fr)}.object-line{gap:8px}.object-kind{justify-self:start;min-width:132px}.object-map>i{height:12px;margin-left:22px}.failure-row,.flow-step,.implementation-list>div{gap:8px}.failure-signal,.flow-step>span{justify-self:start;min-width:64px}.bp-summary,.object-map,.investigation-flow{padding-left:16px;padding-right:16px}.bp-code{font-size:.78rem;padding:16px 14px}.bp-table-hint{display:block;position:sticky;left:0;width:max-content;max-width:calc(100vw - 54px);padding:9px 12px;background:var(--bh-butter);border-bottom:1.5px solid var(--bh-black);border-right:1.5px solid var(--bh-black);font-size:.7rem;font-weight:700;letter-spacing:.02em}.close-actions .pill-red,.close-actions .pill-ghost{width:100%;justify-content:center}.ft-grid{grid-template-columns:minmax(0,1fr)}}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}.fn-bar,.dv-bar{animation:none}.bp-inline-btn:hover,.bp-card-btn:hover,.pill-red:hover,.pn-cta:hover,.bi-lead:hover .bi-lead-art svg{transform:none}}.bp-h1--wide{max-width:22ch;font-size:clamp(1.85rem,3.5vw,2.95rem);line-height:1.08}.bp-card-art{border-bottom:3px solid var(--bh-black);background:var(--bh-plum);padding:18px 16px 16px}.bp-card-art svg{display:block;width:100%;height:auto}.bp-card-info{list-style:none;margin:0;padding:0 18px 6px;border-top:3px solid var(--bh-black);background:var(--bh-cream)}.bp-card-info li{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-bottom:1.5px solid rgba(17,17,17,.12);font-size:.9rem;font-weight:500;line-height:1.45;color:var(--bp-ink)}.bp-card-info li:last-child{border-bottom:0}