body.site.case-shell{--bg-page: var(--paper);--bg-surface: var(--paper-2);--bg-elevated: #fff;--bg-evidence: var(--paper-2);--c-primary: var(--ink);--c-secondary: var(--muted);--c-tertiary: var(--soft);--c-border: var(--line);--c-border-em: var(--underline);--c-accent: var(--ink);--c-accent-dim: var(--underline);--c-accent-sf: var(--paper-2);--font-body: var(--font-sans);--text-xs: 12px;--text-sm: 13px;--text-base: 16px;--text-lg: 18px;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 40px;--space-2xl: 64px;--radius-sm: 6px;--radius-md: var(--radius-frame);--radius-lg: var(--radius-frame);--duration-fast: .15s;--duration-normal: .3s;--duration-slow: .5s;--ease-out-case: cubic-bezier(.16, 1, .3, 1)}body.site.case-shell.csl-case{--paper-2: #e7eef2;--line: #d5dee3;--underline: #9fb0b9}.case-header{padding:20px 0 32px}.case-client{display:block;margin-bottom:14px}.case-h1{font:var(--case-h1);letter-spacing:-.04em;margin:0;max-width:20ch;text-wrap:balance}.case-summary{font:var(--lede);font-size:19px;color:var(--muted);max-width:60ch;margin:16px 0 0}.case-facts{display:flex;flex-wrap:wrap;align-items:center;gap:16px 40px;margin:28px 0 0;padding-top:16px;border-top:1px solid var(--line)}.case-facts dl{display:flex;flex-wrap:wrap;gap:12px 40px;margin:0}.case-facts dt{font:var(--label);color:var(--muted)}.case-facts dd{font:var(--body-ui);margin:2px 0 0;max-width:34ch}.case-facts .pills{margin-left:auto}.csl-case .case-h1{font-family:var(--font-serif);font-weight:400;letter-spacing:-.025em;max-width:19ch}.csl-case .case-summary{font-family:var(--font-serif);font-size:clamp(20px,2vw,26px);line-height:1.35;max-width:48ch;color:var(--ink)}.csl-opening-figures{margin:8px 0 40px}.csl-opening-figures>.case-figure:first-child{margin-top:0}.csl-opening-figures>:last-child,.csl-opening-figures>:last-child .case-figure{margin-bottom:0}.csl-figure-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.csl-visuals-note{max-width:var(--measure);margin:-8px 0 40px;color:var(--muted);font:var(--caption)}.csl-visuals-note strong{color:var(--ink)}.csl-proof{max-width:var(--measure);margin:-24px 0 56px;padding-left:20px;border-left:2px solid var(--underline)}.csl-proof p{font:var(--case-body);color:var(--muted);margin:0}.csl-concept{max-width:none;margin:var(--case-section) 0 0;padding:0 28px 32px;border:1px solid var(--line);border-radius:var(--radius-frame);background:var(--paper-2)}.csl-concept>.case-h2:first-child{margin-top:0;border-top:0}.appendix-heading{font:var(--case-h2);margin:var(--case-section) 0 24px;padding-top:24px;border-top:1px solid var(--line)}.appendix-block{color:var(--muted)}.case-tldr{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-frame);padding:24px 32px 28px;margin:0 0 56px}.case-tldr h2{font:var(--label);color:var(--muted);margin:0 0 12px}.case-tldr ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px 32px}.case-tldr .tldr-status{display:flex;align-items:center;min-height:28px}.case-tldr .tldr-name{display:block;font:var(--case-h3);margin:8px 0 4px}.case-tldr a.tldr-name{text-decoration:underline;text-decoration-color:var(--underline);text-underline-offset:4px}.case-tldr a.tldr-name:hover{text-decoration-color:var(--ink)}.case-tldr p{font:var(--body-ui);color:var(--muted);margin:0}.case-body>*{max-width:var(--measure)}.case-h2{font:var(--case-h2);letter-spacing:-.025em;margin:var(--case-section) 0 24px;padding-top:24px;border-top:1px solid var(--line);scroll-margin-top:24px;max-width:none;text-wrap:balance}.case-body>.case-h2:first-child{margin-top:0}.case-h3{font:var(--case-h3);margin:40px 0 12px}.case-body :is(p,li):not(:where(.wmg-fig *,.hr-fig *)){font:var(--case-body)}.case-body :is(p,li):not(:where(.wmg-fig *,.hr-fig *,.fz *)){color:var(--ink)}.case-body p:not(:where(.wmg-fig *,.hr-fig *)){margin:0 0 20px}.case-body ul:not(:where(.wmg-fig *,.hr-fig *)){margin:0 0 20px;padding-left:22px}.case-body li:not(:where(.wmg-fig *,.hr-fig *)){margin-bottom:8px}.case-body li::marker{color:var(--soft)}.case-body blockquote{margin:28px 0;padding-left:20px;border-left:2px solid var(--underline)}.case-body blockquote,.case-body blockquote p{font:var(--case-body);color:var(--muted)}.case-body code{font:.92em var(--font-mono)}.case-body p.case-status{display:inline-block;margin:0 0 20px;font:500 12px/1 var(--font-sans);color:var(--muted)}.case-body>.case-figure,.case-body>.fz-figure,.case-body>.case-details{max-width:none}.case-figure,.case-shell .fz-figure{margin:var(--figure-gap) 0}.case-figure .frame{display:block;width:100%;padding:24px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-frame)}.case-figure button.frame{cursor:zoom-in}.case-figure .frame img{width:100%;height:auto;border-radius:4px}.case-figure figcaption,.case-shell .fz-figure figcaption{font:var(--caption);color:var(--muted);margin-top:14px;max-width:var(--measure)}.case-shell .ev-prov{display:inline;margin-right:.5em;font:600 13px/1.5 var(--font-sans);letter-spacing:0;text-transform:none;color:var(--ink);vertical-align:baseline}.case-shell .ev-prov:after{content:"."}.case-figure.is-focused .frame{overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin}.case-figure.is-focused .frame img{width:max(100%,var(--native-w));max-width:none}.case-figure .frame-tools{display:flex;align-items:center;justify-content:space-between;gap:12px 20px;flex-wrap:wrap;margin-top:10px}.case-figure .scroll-cue{display:none;font:var(--caption);color:var(--muted)}.case-figure.is-scrolling .scroll-cue{display:inline-flex;align-items:center;gap:6px}.case-figure .frame-tools .inspect{margin-left:auto}.case-figure .frame-tools+figcaption{margin-top:6px}.case-details{display:none}.case-shell .fz-figure.ev-frame{padding:24px;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-frame)}.case-shell .fz-figure .fz-stage{max-width:min(100%,calc((100vh - 240px) * 1080 / 700));margin-inline:auto}.case-shell .fz-research,.case-shell .fz-scroll-hint{font-size:12px;color:var(--muted)}.case-shell .fz-ctl{border-radius:var(--radius-pill);min-height:36px;padding:0 14px}.case-shell .fz-ctl:focus-visible,.case-shell .fz-rail button:focus-visible,.case-shell .fz-stage:focus-visible{outline-color:var(--focus)}.case-shell .fz-rail{gap:8px}.case-shell .fz-rail button{border-top:3px solid var(--line);padding:10px 10px 12px;border-radius:0 0 6px 6px}.case-shell .fz-rail .rt{align-items:center;font-size:13px;font-weight:500;color:var(--muted)}.case-shell .fz-rail .rt i{display:inline-flex;align-items:center;justify-content:center;flex:none;width:20px;height:20px;padding:0;border:1px solid var(--underline);border-radius:50%;font:600 11px/1 var(--font-sans);color:var(--muted)}.case-shell .fz-rail .rd{font-size:12px;color:var(--muted);margin-top:6px}.case-shell .fz-rail button:hover{border-top-color:var(--underline)}.case-shell .fz-rail button.done{border-top-color:var(--soft)}.case-shell .fz-rail button.done .rt i{background:var(--line);border-color:var(--line);color:var(--ink)}.case-shell .fz-rail button.on{border-top-color:var(--ink);background:var(--bg-elevated);box-shadow:0 0 0 1px var(--line),0 6px 16px #17252a14}.case-shell .fz-rail button.on .rt{color:var(--ink);font-weight:650}.case-shell .fz-rail button.on .rt i{background:var(--ink);border-color:var(--ink);color:var(--paper)}.case-shell .fz-rail button.on .rd{color:var(--ink)}.case-next{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin:var(--case-section) 0 var(--section);padding:32px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.case-next .next-title{display:block;font:var(--case-h2);letter-spacing:-.025em;margin-top:6px}@media (max-width: 720px){.case-header{padding:12px 0 28px}.case-summary{font-size:17px}.case-facts{margin-top:20px}.case-facts .pills{margin-left:0}.case-tldr{padding:20px;margin-bottom:44px}.case-tldr .tldr-status:empty{display:none}.case-figure .frame,.case-shell .fz-figure.ev-frame{padding:10px}.case-details{display:block}.case-details .case-figure{margin:24px 0}.csl-figure-pair{grid-template-columns:1fr;gap:0}.csl-concept{padding-inline:16px}.case-shell .fz-figure{display:flex;flex-direction:column}.case-shell .fz-figure .fz-stage{width:100%;max-width:100%;margin-inline:0}.case-shell .fz-figure .fz-ctrl{order:-2;margin:0 0 10px}.case-shell .fz-figure.is-ready .fz-scroll-hint{order:-1;margin:0 0 8px}.case-shell .fz-rail{position:relative;grid-auto-flow:column;grid-auto-columns:minmax(0,1fr);gap:6px;padding-bottom:84px}.case-shell .fz-rail button{display:flex;justify-content:center;align-items:center;min-height:44px;padding:0;box-shadow:none}.case-shell .fz-rail button.on{padding-left:0;box-shadow:0 0 0 1px var(--line)}.case-shell .fz-rail .rn,.case-shell .fz-rail .rd{display:none}.case-shell .fz-rail button.on .rn,.case-shell .fz-rail button.on .rd{display:block;position:absolute;left:0;right:0;text-align:left}.case-shell .fz-rail button.on .rn{top:56px;font:600 15px/1.3 var(--font-sans)}.case-shell .fz-rail button.on .rd{top:80px;margin:0;font-size:13px;line-height:1.4}.case-shell .fz-actions{order:0}}.theater{border:none;background:var(--bg-page);color:var(--c-primary);padding:0;margin:0;width:100vw;height:100dvh;max-width:100vw;max-height:100dvh;overflow:hidden}.theater::backdrop{background:#000001}.theater[open]{animation:theaterIn var(--duration-slow) var(--ease-out-case)}@keyframes theaterIn{0%{opacity:0}to{opacity:1}}.theater-layout{display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto 1fr;height:100dvh;overflow:hidden}.theater-bar{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border-bottom:1px solid var(--c-border);background:var(--bg-surface);min-height:48px;z-index:10}.theater-bar-left{display:flex;align-items:center;flex:1 1 0;min-width:0}.theater-bar-title{font-size:var(--text-sm);font-weight:550;color:var(--c-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.theater-bar-controls{display:flex;align-items:center;gap:var(--space-xs);flex-shrink:0}.theater-ctrl-sep{width:1px;height:16px;background:var(--c-border);flex-shrink:0;margin:0 2px}.fill-label-short{display:none}.theater-btn{appearance:none;background:transparent;border:1px solid var(--c-border);color:var(--c-secondary);padding:5px 12px;border-radius:var(--radius-sm);font-size:var(--text-xs);font-family:var(--font-body);font-weight:500;cursor:pointer;transition:all var(--duration-fast);display:flex;align-items:center;gap:5px;white-space:nowrap}.theater-btn:hover{border-color:var(--c-border-em);color:var(--c-primary);background:var(--bg-elevated)}.theater-btn.active{background:var(--c-accent-sf);border-color:var(--c-accent-dim);color:var(--c-accent)}.theater-close{appearance:none;background:transparent;border:1px solid var(--c-border);color:var(--c-secondary);width:44px;height:44px;border-radius:var(--radius-sm);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:all var(--duration-fast);flex-shrink:0}.theater-close:hover{border-color:var(--c-border-em);color:var(--c-primary);background:var(--bg-elevated)}.theater-body{display:grid;grid-template-columns:1fr;overflow:hidden;position:relative}.theater-body:not(.with-panel) .theater-panel{display:none}@media (min-width: 801px){.theater-body.with-panel{grid-template-columns:1fr clamp(280px,22vw,380px)}.theater-panel{box-shadow:-4px 0 24px #00000040}}.theater-viewport{overflow:auto;display:flex;align-items:center;justify-content:center;background:var(--bg-page);position:relative}.theater-viewport[data-mode=fit]{padding:var(--space-lg);cursor:pointer}.theater-viewport[data-mode=fit] img{max-width:min(100%,var(--theater-img-natural-w, 100%));max-height:100%;object-fit:contain}.theater-viewport[data-mode=fill]{padding:var(--space-md) var(--space-sm);cursor:pointer}.theater-viewport[data-mode=fill] img{width:min(100%,var(--theater-img-natural-w, 100%));max-height:none;height:auto}@media (max-width: 800px){.theater-viewport[data-mode=fit]{padding:var(--space-md)}.theater-viewport[data-mode=fill]{padding:var(--space-sm)}.theater-bar-controls{position:fixed;bottom:0;left:0;right:0;justify-content:center;gap:var(--space-md);padding:var(--space-sm) var(--space-lg);padding-bottom:calc(var(--space-sm) + env(safe-area-inset-bottom));min-height:56px;background:var(--bg-surface);border-top:1px solid var(--c-border);z-index:20}.theater-bar-controls .theater-btn{padding:10px 20px;min-height:44px}.theater-ctrl-sep,.fill-label-long{display:none}.fill-label-short{display:inline}.theater-body.with-panel{overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain}.theater-body.with-panel .theater-viewport{height:55dvh;min-height:55dvh;overflow:hidden;flex:none}.theater-body.with-panel .theater-panel{position:static;width:auto;box-shadow:none;overflow-y:visible;min-height:0;border-left:none;border-top:1px solid var(--c-border);padding-bottom:calc(56px + var(--space-xl) + env(safe-area-inset-bottom))}}.theater-viewport[data-mode=fill].fill-overflows{align-items:flex-start}.theater-viewport[data-mode=fill][data-fill-axis=height]{justify-content:flex-start;align-items:stretch;overflow-x:auto;overflow-y:hidden;padding:var(--space-md)}.theater-viewport[data-mode=fill][data-fill-axis=height] img{height:min(100%,var(--theater-img-natural-h, 100%));width:auto;max-width:none;max-height:none;flex:none;margin:auto}@media (max-width: 800px){.theater-viewport[data-mode=fill][data-fill-axis=height]{padding:var(--space-sm) var(--space-sm) calc(56px + var(--space-sm) + env(safe-area-inset-bottom))}}.theater-viewport:focus-visible{outline:2px solid var(--c-accent);outline-offset:-2px}.theater-viewport img{border-radius:var(--radius-sm);box-shadow:0 4px 24px #00000026}.theater-viewport.zoomed{overflow:hidden;cursor:grab}.theater-viewport.dragging{cursor:grabbing}.theater-viewport.zoomed img{transition:transform .15s ease;user-select:none}.theater-viewport.dragging img{transition:none}.theater-panel{border-left:1px solid var(--c-border);background:var(--bg-surface);padding:var(--space-xl) var(--space-lg);overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-md)}.lb-title{font-size:var(--text-base);font-weight:600;color:var(--c-primary);line-height:1.3}.lb-desc{font-size:var(--text-sm);color:var(--c-secondary);line-height:1.55}.lb-decisions{list-style:none;display:flex;flex-direction:column;gap:var(--space-sm)}.lb-decisions li{font-size:var(--text-sm);color:var(--c-secondary);line-height:1.5;padding-left:var(--space-md);position:relative}.lb-decisions li:before{content:"→";position:absolute;left:0;color:var(--c-accent);font-weight:600}.lb-decisions-label{font-size:var(--text-xs);font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--c-tertiary);margin-top:var(--space-sm)}.lb-iteration{font-size:var(--text-xs);color:var(--c-tertiary);font-style:italic;line-height:1.5;padding-top:var(--space-sm);border-top:1px solid var(--c-border);margin-top:auto}