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*{box-sizing:border-box}html{scroll-behavior:auto}body{margin:0}a{color:inherit;text-underline-offset:5px}a:hover{text-decoration-thickness:2px}a:focus-visible{outline:3px solid #7463a5;outline-offset:5px}p{font-size:16px;line-height:1.65;margin:0 0 20px}h1,h2,h3{margin:0;font-weight:600;line-height:1.05;letter-spacing:-.045em}h1{font-size:clamp(56px,5.6vw,82px)}h2{font-size:clamp(32px,3.2vw,46px);margin:0 0 23px}h3{font-size:20px;letter-spacing:-.025em;line-height:1.22}figure{margin:0}img{max-width:100%;height:auto;display:block}.wrap{width:min(1280px,calc(100% - 112px));margin-inline:auto}.eyebrow{font:10px/1.6 var(--mono);letter-spacing:1px;color:var(--muted);text-transform:uppercase;margin:0 0 22px}.handwritten,.rail-pencil{font:italic 19px/1.4 Georgia,serif;letter-spacing:0;color:var(--blue)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;z-index:30;top:-100px;left:18px;padding:15px 20px;background:var(--dark);color:var(--paper)}.skip-link:focus{top:12px}.site-header{display:flex;align-items:center;gap:25px;min-height:96px}.brand{font-size:31px;font-weight:800;letter-spacing:-1.9px;text-decoration:none;display:inline-flex;align-items:center;gap:12px;line-height:1}.brand>span{font-size:29px;font-weight:400;color:#69759c;letter-spacing:0}.brand-caption{font:11px var(--mono);color:var(--muted);margin:3px 0 0}.site-header>nav{display:flex;gap:32px;margin-left:auto;align-items:center;font-size:13px}.site-header>nav a{min-height:44px;display:inline-flex;align-items:center;text-decoration:none}.site-header>nav a:hover{text-decoration:underline}.nav-setup{gap:25px;border-bottom:1px solid var(--ink)}
.case-switcher{position:sticky;top:0;z-index:10;background:var(--paper);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}.switcher-inner{display:grid;grid-template-columns:175px minmax(0,1fr);gap:23px;align-items:center}.switcher-label .eyebrow{font-size:9px;letter-spacing:.7px;margin:0 0 4px}.switcher-label p{font-size:12px;line-height:1.4;margin:0}.case-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}.case-tabs>a{padding:19px 14px 17px;display:flex;gap:10px;align-items:start;text-decoration:none;position:relative;min-height:83px;border-left:1px solid #c9ceca}.case-tabs>a[aria-selected="true"]{background:#e4e7e2;box-shadow:inset 0 -3px var(--ink)}.case-tabs>a:hover{background:#e9ebe5}.case-tabs>a:focus-visible{outline-offset:-5px;z-index:1}.tab-number{font:10px/1.7 var(--mono);color:var(--muted)}.case-tabs b{font-size:12px;font-weight:600;display:block;line-height:1.55}.case-tabs small{font:9px/1.5 var(--mono);display:block;color:var(--muted);padding-top:4px;letter-spacing:-.1px}#use-case-content{scroll-margin-top:100px}.case-hero{padding-block:55px}.hero-summary{font-size:18px;line-height:1.6;max-width:620px;margin-top:28px}.button{display:inline-flex;justify-content:space-between;gap:26px;align-items:center;background:var(--dark);color:var(--paper);font-size:13px;line-height:1.5;text-decoration:none;min-height:52px;padding:15px 21px;border:1px solid transparent}.button:hover{background:#35465a}.button-light{background:var(--paper);color:var(--ink)}.button-light:hover{background:#dce8e4}.button>span[aria-hidden]{font-size:17px}.guide-note,.guide-note+p{font:10px/1.65 var(--mono);color:var(--muted);margin-top:14px}.text-link{display:inline-flex;align-items:center;min-height:44px;font-size:13px;gap:14px}.study-heading{border-top:1px solid var(--rule);padding-top:12px;display:flex;gap:25px;justify-content:space-between;font:9px/1.6 var(--mono);color:var(--muted);letter-spacing:.4px}.grid-paper{background-image:linear-gradient(#a9b6bd23 1px,transparent 1px),linear-gradient(90deg,#a9b6bd23 1px,transparent 1px);background-size:24px 24px}figcaption{font:10px/1.7 var(--mono);color:var(--muted);padding:12px 0 0;border-top:1px solid var(--rule)}.study-labels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px;border-top:1px solid var(--rule);padding-top:15px}.study-label>span{font:9px/1.6 var(--mono);letter-spacing:.3px;color:var(--blue)}.study-label>p{font:11px/1.7 var(--mono);color:var(--muted);margin:5px 0 0}.study-labels+figcaption{border:0;padding-top:17px}.notebook-section{padding-block:70px;border-top:1px solid var(--rule)}.section-intro>p:not(.eyebrow){max-width:680px}.section-intro h2{max-width:22ch}.numbered-note{display:flex;align-items:start;gap:15px;border-top:1px solid var(--rule);padding-top:18px}.numbered-note .note-number{font:10px/1.7 var(--mono);color:var(--blue);padding-top:2px}.numbered-note h3{margin-bottom:11px}.numbered-note p{font-size:14px;line-height:1.7;margin-bottom:0}.notes-three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin-top:35px}.wide-study>img,.paired-study>img,.revision-study>img{width:100%;mix-blend-mode:multiply}.wide-study{margin-top:40px}.outcome-strip{border-top:1px solid var(--ink);padding:26px 0 32px;display:grid;grid-template-columns:180px 1fr auto;gap:35px;align-items:start}.outcome-strip>.eyebrow{font-size:9px;margin:5px 0 0}.outcome-strip>p{font-size:17px;max-width:650px;margin:0;line-height:1.6}.outcome-strip>.text-link{font-size:12px;margin-top:-5px}
/* Investigation: a vertical observation plate and an asymmetric evidence rail. */
.observation-hero{display:grid;grid-template-columns:1.03fr 1fr;gap:70px}.observation-hero .hero-summary{font-size:17px;max-width:500px}.observation-hero .button{margin-top:8px}.pencil-note{display:flex;gap:15px;margin-top:35px;padding-left:19px;border-left:1px solid var(--rule)}.pencil-note>span{font:10px var(--mono);border:1px solid #8b9caa;border-radius:50%;padding:6px;height:26px}.pencil-note>p{font-size:13px;line-height:1.7;margin:0}.pencil-note strong{font-weight:500;color:var(--blue)}.observation-art{position:relative;margin-top:15px;min-height:515px;display:flex;justify-content:center}.observation-art>img{width:330px;max-width:80%;object-fit:contain;align-self:flex-start;transform:rotate(-4deg);mix-blend-mode:multiply}.callout{position:absolute;font-size:12px;font-weight:600;line-height:1.5;max-width:115px}.callout>span{display:block;font-size:10px;font-weight:400;color:var(--muted)}.callout:after{position:absolute;content:"";height:1px;width:45px;background:#8c9daa;transform:rotate(18deg);left:28px;top:40px}.callout-left{left:0;top:116px}.callout-right{right:0;bottom:85px}.callout-right:after{left:-20px;top:34px;transform:rotate(-18deg)}.observation-study figcaption{font-size:9px;max-width:100%}.evidence-notebook{display:grid;grid-template-columns:160px minmax(0,1fr);gap:50px}.margin-rail{border-right:1px solid var(--rule);padding-right:25px}.margin-rail .eyebrow{font-size:8px;letter-spacing:.5px}.margin-rail>p:not(.eyebrow){font-size:14px;line-height:1.6}.rail-pencil{display:block;font-size:19px;margin-top:75px;transform:rotate(-5deg)}.notebook-content{min-width:0}.notebook-content>.section-intro h2{max-width:24ch}.notebook-content .wide-study{max-width:100%}.notebook-content .wide-study>img{max-height:580px;object-fit:contain}
/* Choice: a bold editorial opening and an equal-status comparative specimen plate. */
.choice-hero{background:var(--dark);color:var(--paper);padding-block:48px 0}.choice-hero .eyebrow{color:#c0cdce}.choice-hero h1{font-size:clamp(62px,6.65vw,96px);font-weight:600;line-height:1.02;max-width:1120px}.choice-hero-bottom{display:flex;align-items:end;justify-content:space-between;gap:60px;margin:30px 0}.choice-hero .hero-summary{color:#d5dad7;margin:0;font-size:17px;max-width:720px}.choice-hero .button{flex-shrink:0}.hero-footnote{border-top:1px solid #606b72;display:flex;justify-content:space-between;padding-block:17px;font:9px/1.6 var(--mono);color:#c7d2d0;letter-spacing:.5px}.alternatives-section{padding-block:50px 60px}.split-intro{display:grid;grid-template-columns:1fr 1fr;gap:70px}.split-intro>p{align-self:end;font-size:15px;margin-bottom:23px;max-width:600px}.priority-annotation{display:flex;gap:20px;border-top:1px solid var(--rule);padding-top:17px;margin-top:10px;align-items:start}.priority-annotation>span:first-child{font:25px var(--mono);color:var(--blue)}.priority-annotation>p{font-size:13px;line-height:1.6;max-width:650px;margin:0}.priority-annotation strong{font-weight:600}.priority-annotation .handwritten{font-size:17px;margin-left:auto;transform:rotate(-3deg)}.specimen-shelf{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;margin-top:22px}.specimen-art{background-image:url('assets/alternatives.png'),linear-gradient(#a9b6bd23 1px,transparent 1px),linear-gradient(90deg,#a9b6bd23 1px,transparent 1px);background-size:400% 100%,24px 24px,24px 24px;background-repeat:no-repeat,repeat,repeat;aspect-ratio:1/.99;position:relative}.specimen-art:after{content:"";position:absolute;bottom:0;left:20%;height:24px;border-left:1px solid #8a9aa5}.specimen-cache{background-position:0 50%}.specimen-batch{background-position:33.333% 50%}.specimen-reduce{background-position:66.666% 50%}.specimen-wait{background-position:100% 50%}.specimen-shelf figcaption{padding-top:17px}.specimen-shelf .eyebrow{font-size:8px;letter-spacing:.3px;margin-bottom:8px}.specimen-shelf h3{font-size:21px;margin-bottom:12px}.specimen-shelf figcaption p{font:13px/1.7 Arial,sans-serif;color:var(--ink);margin:0}.synthesis-note{display:grid;grid-template-columns:160px 1fr;gap:35px;padding-top:22px;margin-top:32px;border-top:1px solid var(--rule)}.synthesis-note .eyebrow{font-size:9px}.synthesis-note>p{font-size:14px;line-height:1.75;margin:0;max-width:960px}.paired-notebook{display:grid;grid-template-columns:1.25fr 1fr;gap:65px;align-items:center}.paired-notebook .section-intro h2{font-size:38px}.paired-notebook .section-intro>p:not(.eyebrow){font-size:15px}.paired-study .study-heading{border:0}.paired-study .study-labels{gap:18px}.paired-study .study-label>span{font-size:8px}.paired-study .study-label>p{font-size:9px}
/* Continuity: a title band alongside a lifecycle ledger, then a revised-state study. */
.continuity-hero{display:grid;grid-template-columns:38% minmax(0,1fr);padding:0}.continuity-title{background:var(--dark);color:var(--paper);padding:48px max(35px,calc((100vw - 1280px)/2)) 42px;padding-right:45px;display:flex;flex-direction:column;align-items:start}.continuity-title .eyebrow{color:#c1cece;font-size:9px;max-width:260px}.continuity-title h1{font-size:clamp(54px,4.7vw,70px);line-height:1.02;max-width:11ch}.continuity-title .hero-summary{font-size:16px;color:#d6dbd7;max-width:480px;margin:27px 0}.continuity-title .button{font-size:12px;max-width:100%}.continuity-margin{margin-top:auto;padding-top:55px;border-left:1px solid #77828d;padding-left:20px}.continuity-margin .handwritten{color:#c4c1d8;font-size:22px;display:block;transform:rotate(-3deg)}.continuity-margin p{font:10px/1.8 var(--mono);margin:20px 0 0;color:#c6d0cd}.continuity-notebook{padding:38px max(35px,calc((100vw - 1280px)/2)) 38px 45px;min-width:0}.continuity-notebook h2{font-size:38px;margin-top:28px}.lifecycle-layout{display:grid;grid-template-columns:minmax(0,1fr) 275px;gap:24px;align-items:start;margin-top:30px}.lifecycle-notes .numbered-note{border:0;border-left:1px solid var(--rule);padding:0 0 25px 16px;gap:10px}.lifecycle-notes .numbered-note:last-child{padding-bottom:0}.lifecycle-notes .numbered-note h3{font-size:17px;line-height:1.25;margin-bottom:8px}.lifecycle-notes .numbered-note p{font-size:12px;line-height:1.6}.lifecycle-notes .note-number{font-size:9px}.lifecycle-figure{width:100%;min-width:0}.lifecycle-crop{aspect-ratio:357/448;overflow:hidden}.lifecycle-crop img{width:100%;height:auto}.lifecycle-figure figcaption{font-size:9px}.boundary-note{font-size:12px;line-height:1.6;max-width:650px;margin:23px 0 0;color:var(--muted)}.revision-notebook{display:grid;grid-template-columns:1fr 1.35fr;gap:40px 70px;align-items:start}.revision-notebook>.section-intro{padding-top:15px}.revision-notebook>.section-intro p:not(.eyebrow){font-size:15px}.revision-notebook .revision-study{grid-column:2;grid-row:1/3}.revision-footnotes{display:grid;gap:25px}.revision-footnotes .numbered-note p{font-size:13px}.revision-footnotes .numbered-note h3{font-size:19px}
/* Coordination: offset independent work lanes joined by a common return rail. */
.coordination-hero{padding-top:43px}.coordination-title{display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:40px;align-items:end}.coordination-title h1{font-size:clamp(57px,5.9vw,86px);line-height:.99;letter-spacing:-.06em}.objective{border-left:2px solid var(--blue);padding-left:18px}.objective>.eyebrow{font-size:8px;margin-bottom:13px}.objective>p{font-size:13px;line-height:1.55;margin-bottom:20px}.objective .handwritten{font-size:19px;display:block;transform:rotate(-4deg)}.coordination-summary{display:flex;justify-content:space-between;gap:50px;align-items:end;margin:30px 0 36px}.coordination-summary .hero-summary{font-size:17px;max-width:730px;margin:0}.coordination-summary .button{flex-shrink:0}.workbench-heading{display:flex;justify-content:space-between;gap:25px;border-top:1px solid var(--rule);padding-top:15px;margin-bottom:26px}.workbench-heading .eyebrow{font-size:9px;margin:0}.workbench-heading .handwritten{font-size:18px;transform:rotate(-3deg)}.workbench{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}.work-lane{min-width:0}.lane-offset-one{padding-top:38px}.lane-offset-two{padding-top:76px}.lane-heading{display:flex;align-items:start;gap:14px;border-left:2px solid var(--blue);padding-left:15px;position:relative}.lane-heading:before{content:"";position:absolute;top:0;left:0;width:11px;border-top:2px solid var(--blue)}.lane-heading>span{font:10px/1.5 var(--mono);color:var(--blue);padding-top:4px}.lane-heading h2{font-size:27px;line-height:1.05;letter-spacing:-1px;margin:0}.lane-figure{height:245px;position:relative;margin:22px 0}.observation-lane>img{height:265px;width:177px;object-fit:contain;margin:auto;position:relative;top:-10px;mix-blend-mode:multiply}.lane-figure figcaption{position:absolute;bottom:0;right:0;background:var(--paper);padding:5px 0 4px 12px;border:0;font:italic 13px Georgia,serif;color:var(--blue);transform:rotate(-3deg)}.bundle-lane,.scroll-lane{background-image:url('assets/alternatives.png'),linear-gradient(#a9b6bd23 1px,transparent 1px),linear-gradient(90deg,#a9b6bd23 1px,transparent 1px);background-size:400% 100%,24px 24px,24px 24px;background-repeat:no-repeat,repeat,repeat}.bundle-lane{background-position:33.333% center}.scroll-lane{background-position:66.666% center}.work-lane>p{font-size:14px;line-height:1.7;margin-bottom:18px}.lane-return{display:block;font:9px/1.7 var(--mono);letter-spacing:.3px;border-top:1px solid var(--rule);padding-top:12px;color:var(--blue)}.return-rail{display:grid;grid-template-columns:175px 1fr;gap:30px;align-items:start;margin-top:35px;border-top:2px solid var(--blue);border-left:2px solid var(--blue);padding:20px 20px 0}.return-rail .eyebrow{font-size:9px;margin:0}.return-rail>p{font-size:14px;line-height:1.65;margin:0;max-width:800px}.authority-section{background:var(--dark);color:var(--paper);padding-block:65px}.authority-layout{display:grid;grid-template-columns:1.2fr 1fr;gap:85px;align-items:start}.authority-layout>.section-intro>.eyebrow{color:#bed0d4}.authority-layout>.section-intro>p:not(.eyebrow){color:#d1d7d4;font-size:16px}.authority-layout h2{font-size:43px}.authority-notes{display:grid;gap:23px;margin-top:32px}.authority-notes .numbered-note{border-color:#6d7980}.authority-notes .note-number{color:#a8c9d2}.authority-notes h3{font-size:20px}.authority-notes p{font-size:13px;color:#cbd6d4}.sieve-study{padding-top:3px}.sieve-study .study-heading{color:#c2d4d8;border-color:#758087}.sieve-study>img{margin-top:20px}.sieve-study figcaption{border-color:#758087;color:#cbd5d4}.authority-scope{font:10px/1.8 var(--mono);border-left:1px solid #91a5b4;padding-left:17px;margin-top:25px;color:#c4d0d2}.counterexample-notebook{display:grid;grid-template-columns:1.2fr 1fr;gap:70px;align-items:center;border:0}.counterexample-notebook .wide-study{margin:0}.counterexample-notebook .section-intro>p:not(.eyebrow){font-size:15px}.counterexample-notebook h2{font-size:39px}
/* Shared practice and destination remain stable as the use case changes. */
.shared-practice{background:var(--paper-deep);border-block:1px solid var(--rule);padding-block:65px}.shared-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px}.shared-layout .section-intro h2{font-size:39px}.shared-layout .section-intro>p:not(.eyebrow){font-size:16px;max-width:500px}.shared-notes{display:grid;gap:22px}.shared-notes article{border-bottom:1px solid var(--rule);padding-bottom:20px}.shared-notes article:last-child{border:0;padding:0}.shared-notes article>span{font:9px/1.6 var(--mono);letter-spacing:.5px;color:var(--muted)}.shared-notes h3{font-size:20px;margin:9px 0 10px}.shared-notes p{font-size:14px;line-height:1.7;margin:0}.closing{display:grid;grid-template-columns:1.2fr 1fr;gap:100px;padding-block:65px;align-items:center}.closing>div>p:not(.eyebrow){font-size:16px;max-width:600px}.closing h2{font-size:47px}.closing-actions .button{min-width:280px;max-width:100%;width:100%}.closing-actions .text-link{display:flex;margin:8px 0}.closing-actions .docs-note{font:10px/1.7 var(--mono);color:var(--muted);max-width:450px;margin:10px 0 0}.site-footer{border-top:1px solid var(--ink);padding-block:30px;display:flex;gap:30px;align-items:center;flex-wrap:wrap}.site-footer>.brand{font-size:27px}.site-footer>.brand>span{font-size:24px}.site-footer>p{font:10px/1.7 var(--mono);color:var(--muted);margin:0}.site-footer nav{margin-left:auto;display:flex;gap:25px;font-size:12px}.site-footer nav a{min-height:44px;display:flex;align-items:center}.site-footer>small{width:100%;font:9px/1.7 var(--mono);color:var(--muted)}.fallback{padding-block:60px}.fallback>p:not(.eyebrow){max-width:650px;margin-top:25px}.no-script{padding-block:35px}
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.native-principles .numbered-note{border-top:1px solid #a8b9b0;padding-top:22px}
.native-engine{display:grid;grid-template-columns:.7fr 1.5fr 1fr;gap:40px;align-items:start;border-top:1px solid #a8b9b0;padding-top:40px;margin-top:55px}
.native-engine .button{font-size:12px;white-space:normal}
@media(max-width:1000px){.native-intro{gap:35px;grid-template-columns:1.15fr 1fr}.native-summary .text-link{margin-left:0;display:flex}.coupled-story{gap:40px}.native-engine{grid-template-columns:1fr 2fr}.native-engine .button{grid-column:2}.study-views button{padding-inline:12px}.study-views button span{margin-right:8px}}
@media(max-width:650px){.native-hero{padding-top:38px;padding-bottom:36px}.native-intro{grid-template-columns:1fr;gap:25px;margin-bottom:28px}.native-intro h1{font-size:clamp(42px,10.7vw,64px)}.native-summary .hero-summary{font-size:16px}.native-summary .text-link{display:inline-flex;margin-left:15px}.native-study{padding:12px;border-radius:9px}.native-study-heading{align-items:start;gap:10px}.native-study-heading .eyebrow,.concept-badge{font-size:9px}.native-render figcaption{display:block;min-height:140px;padding:18px 3px 10px}.native-render figcaption strong{display:block;font-size:17px;margin-bottom:9px}.native-render figcaption span{font-size:13px}.study-views{grid-template-columns:repeat(2,1fr);margin-top:0}.study-views button{padding:12px;min-height:48px;font-size:13px}.study-views button:nth-child(2){border-right:0}.study-views button:nth-child(-n+2){border-bottom:1px solid #b8c9c1}.native-boundary{font-size:11px;margin-top:14px}.coupled-story{grid-template-columns:1fr;padding-block:44px 54px;gap:24px}.coupled-story h2{font-size:36px}.coupled-table th,.coupled-table td{padding:14px 7px;font-size:13px}.coupled-table td strong{min-width:64px}.preserved-rule p{font-size:14px}.native-principles{padding:48px 0 35px}.native-principles-heading{margin-bottom:30px}.native-principles .notes-three{gap:24px}.native-engine{display:block;padding-top:25px;margin-top:30px}.native-engine .eyebrow{margin-bottom:12px}.native-summary .button{font-size:13px}}