:root{color-scheme:dark;--bg:oklch(14.6% .006 295);--surface:oklch(19% .01 295);--ink:oklch(95% .012 80);--muted:oklch(76% .018 75);--line:oklch(32% .012 295);--accent:oklch(78% .14 150);--green:oklch(78% .14 150);--sans:'DM Sans',system-ui,sans-serif;--serif:'Fraunces',Georgia,serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased}body[data-theme="light"]{color-scheme:light;--bg:oklch(95% .013 80);--surface:oklch(91% .015 80);--ink:oklch(22% .01 295);--muted:oklch(43% .018 75);--line:oklch(78% .018 80);--accent:oklch(43% .10 150);--green:oklch(43% .10 150)}
a{color:inherit;text-decoration:none}a,button,summary{-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto}figure,p,h1,h2,h3,h4,dl,dd{margin:0}p{max-width:70ch;color:var(--muted)}p+p{margin-top:18px}strong{color:var(--ink);font-weight:600}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:5px}::selection{background:var(--accent);color:var(--bg)}.shell{width:min(1180px,calc(100% - 88px));margin-inline:auto}.skip{position:fixed;top:-100px;left:20px;background:var(--ink);color:var(--bg);padding:12px 20px;z-index:20}.skip:focus{top:15px}
.site-header{height:96px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{width:248px}.brand img{width:100%;height:58px;object-fit:contain;object-position:left}.logo-light{display:none}body[data-theme="light"] .logo-dark{display:none}body[data-theme="light"] .logo-light{display:block}.header-actions{display:flex;align-items:center;gap:22px}.languages{display:flex;gap:2px}.languages button,.theme-toggle{border:0;background:transparent;min-width:42px;min-height:44px}.languages button{font-size:12px;font-weight:600;color:var(--muted)}.languages button[aria-pressed="true"]{color:var(--accent);box-shadow:inset 0 -1px var(--accent)}.theme-toggle{font-size:24px}.back{font-size:13px}.back:hover,.next-project:hover{color:var(--accent)}
.hero{padding-top:44px;padding-bottom:0;position:relative;overflow:hidden}.hero>.aether-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.9}.hero>*:not(.aether-canvas){position:relative;z-index:1}.hero-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.hero-meta .tag{border:0;padding:0;color:var(--muted);font-size:12px}.hero-meta .tag+.tag:before{content:"";display:inline-block;width:6px;height:6px;margin-right:9px;border-radius:50%;background:var(--green)}.hero h1{font:500 clamp(42px,5.3vw,76px)/1.08 var(--sans);letter-spacing:-.05em;margin:25px 0 32px;max-width:1050px}.hero h1 em{font-family:var(--serif);font-weight:400;color:var(--accent)}.hero-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:48px;align-items:center}.hero-story{padding-block:12px 40px}.hero-intro{font-size:20px;line-height:1.6;color:var(--ink)}.role-badges{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0 22px}.tag{display:inline-flex;align-items:center;padding:6px 12px;border:1px solid color-mix(in oklch,var(--accent) 36%,var(--line));border-radius:999px;color:var(--accent);font-size:12px;font-weight:500;line-height:1.5}.text-link{display:inline-block;margin-top:25px;padding:0 0 8px;border-bottom:1px solid var(--accent);font-size:14px;font-weight:600;transition:color .18s ease-out}.text-link:hover{color:var(--accent)}.hero-art{width:100%;max-width:490px;margin:0 auto 30px}.hero-art img{width:100%;height:auto;max-height:480px;object-fit:contain}.hero-art figcaption{text-align:center;margin-top:14px}figcaption{font-size:12px;line-height:1.6;color:var(--muted)}.project-facts{display:grid;grid-template-columns:1.2fr 1.1fr 1fr .65fr;gap:28px;padding:27px 0 31px;border-top:1px solid var(--line)}.project-facts dt{font-size:12px;color:var(--muted);margin-bottom:5px}.project-facts dd{font-size:14px;line-height:1.5}
.chapter-nav{position:sticky;top:0;z-index:5;background:var(--bg);border-block:1px solid var(--line)}.chapter-nav .shell{display:flex;gap:27px;align-items:center;overflow-x:auto;scrollbar-width:thin}.chapter-nav a{white-space:nowrap;padding:16px 0;font-size:12px;color:var(--muted);border-bottom:2px solid transparent}.chapter-nav a:hover,.chapter-nav a[aria-current="location"]{color:var(--accent);border-bottom-color:var(--accent)}
.chapter{padding-block:78px 80px;border-bottom:1px solid var(--line);scroll-margin-top:20px}.section-heading{display:flex;align-items:baseline;gap:20px;margin-bottom:34px}.section-number{flex-shrink:0;font-size:12px;color:var(--accent)}h2{font:500 clamp(29px,3.6vw,45px)/1.17 var(--sans);letter-spacing:-.04em;max-width:960px}h3{font-size:22px;line-height:1.3;letter-spacing:-.025em;font-weight:500}h3+p{margin-top:20px}h4{font-size:18px;line-height:1.4;font-weight:500;letter-spacing:-.02em}.split-copy{display:grid;grid-template-columns:1fr 1fr;gap:64px}.lead{color:var(--ink);font-size:23px;line-height:1.5;letter-spacing:-.015em}.family-path{display:grid;grid-template-columns:repeat(3,1fr);padding:28px 0;margin:36px 0 0;list-style:none;gap:38px}.family-path li{position:relative;padding-top:20px;border-top:1px solid var(--line)}.family-path h3{font-size:19px}.family-path li:not(:last-child):after{content:"→";position:absolute;right:-26px;top:23px;color:var(--accent)}.family-path p{font-size:14px;margin-top:9px}.evidence-note{font-size:12px;line-height:1.7;color:var(--muted)}
.research-layout{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.research-layout h3{font-size:clamp(25px,2.6vw,34px);line-height:1.25}.research-layout p{margin-top:20px}.preference-evidence{padding:20px 0}.character-lineup{display:flex;align-items:center;justify-content:center;gap:8px;margin:0 -10px 28px}.character-lineup img{width:31%;max-height:200px;object-fit:contain}.preference-evidence h3{font-size:16px}.preference-bar{height:13px;background:var(--line);border-radius:4px;overflow:hidden;margin:17px 0 13px}.preference-bar span{display:block;width:94%;height:100%;background:var(--accent)}.preference-key{display:flex;gap:16px;justify-content:space-between;align-items:baseline;font-size:12px}.preference-key strong{color:var(--accent);font-size:15px}.preference-key span{white-space:nowrap;color:var(--muted)}.preference-evidence figcaption{margin-top:20px;max-width:55ch}
.decisions{margin-top:38px}.decision{display:grid;grid-template-columns:35px .8fr 1.15fr;gap:24px 30px;padding:28px 0;border-bottom:1px solid var(--line)}.decision:first-child{border-top:1px solid var(--line)}.decision-index{font-size:12px;color:var(--accent);padding-top:4px}.decision-choice{font-size:15px;margin-top:10px}.decision>div:last-child p{font-size:15px}.tradeoff{font-size:14px!important;color:var(--muted)}.product-showcase{display:grid;grid-template-columns:.65fr 1.1fr;align-items:center;gap:90px;margin-top:66px}.app-screen{max-width:260px;margin:auto}.app-screen>img{width:100%;max-height:505px;object-fit:contain;border-radius:20px}.app-screen figcaption{margin-top:17px;text-align:center}.product-showcase h3{font-size:28px}.website-preview{margin-top:25px}.website-preview img{width:100%;max-height:265px;object-fit:cover;object-position:top;border:1px solid var(--line);border-radius:8px}.website-preview figcaption{margin-top:10px}
.section-status{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin:-8px 0 28px}.ai-flow{display:grid;grid-template-columns:repeat(4,1fr);list-style:none;padding:26px 0;margin:36px 0;gap:32px;border-block:1px solid var(--line);counter-reset:flow}.ai-flow li{position:relative}.ai-flow li:before{counter-increment:flow;content:counter(flow,decimal-leading-zero);color:var(--accent);font-size:12px;display:block;margin-bottom:15px}.ai-flow li:not(:last-child):after{content:"→";position:absolute;top:0;right:0;color:var(--accent)}.ai-flow h3{font-size:17px}.ai-flow p{font-size:14px;margin-top:9px}.ai-choices{display:grid;grid-template-columns:1fr 1fr;gap:64px}.ai-choices p{font-size:15px}
.quality-case{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;margin-top:38px;padding:34px;background:var(--surface);border-radius:8px}.quality-case .tag{border:0;padding:0;font-size:12px}.quality-case h3{font-size:27px;margin-top:13px}.quality-case p{font-size:15px}.check-comparison{align-self:center}.check-comparison>div+div{border-top:1px solid var(--line);margin-top:22px;padding-top:22px}.check-comparison span{display:block;font-size:12px;color:var(--muted);margin-bottom:7px}.check-comparison>div:last-child h4{color:var(--accent)}.check-comparison p{font-size:13px;margin-top:8px}.audit-snapshot{margin-top:40px}.audit-findings{margin:22px 0 18px}.audit-findings>div{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding:17px 0;border-bottom:1px solid var(--line)}.audit-findings dt{font-size:16px;color:var(--ink)}.audit-findings dd{font-size:14px;color:var(--muted)}.evidence-detail{margin-top:30px;border:1px solid var(--line);border-radius:6px}.evidence-detail summary{cursor:pointer;padding:18px 22px;font-size:15px;font-weight:500}.evidence-detail summary:hover{color:var(--accent)}.detail-content{padding:0 22px 22px}.detail-content p{font-size:14px;margin-bottom:20px}.detail-content iframe{display:block;width:100%;height:650px;border:1px solid var(--line);background:var(--surface)}.evidence-detail:not([open]) iframe{display:none}
.status-ledger{margin-top:38px}.status-ledger>div{display:grid;grid-template-columns:.45fr 1fr;gap:60px;padding:23px 0;border-bottom:1px solid var(--line)}.status-ledger h3{font-size:18px;color:var(--accent)}.status-ledger p{font-size:15px}.reflection{max-width:820px;margin-top:45px}.reflection h3{font-size:26px}.reflection p{font-size:18px;color:var(--ink)}.closing{padding-block:62px 45px}.closing-label{font-size:12px;margin-bottom:20px}.closing h2{font-size:clamp(30px,4vw,50px)}.closing-actions{display:flex;align-items:baseline;gap:32px;margin-top:15px;flex-wrap:wrap}.next-project{margin-left:auto;font-size:14px}
@media(min-width:1500px){.hero-layout{gap:70px}.hero-art{max-width:505px}}
@media(max-width:1000px){.shell{width:calc(100% - 54px)}.header-actions{gap:12px}.brand{width:210px}.hero-layout{gap:25px}.hero-intro{font-size:18px}.hero-art{max-width:420px}.project-facts{gap:20px}.split-copy,.research-layout,.ai-choices{gap:35px}.chapter-nav .shell{gap:24px}.product-showcase{gap:40px}.quality-case{gap:30px;padding:26px}.preference-key{flex-wrap:wrap;gap:4px}.audit-findings>div{gap:35px}}
@media(max-width:720px){html{scroll-padding-top:72px}.shell{width:calc(100% - 40px)}.site-header{height:78px;gap:10px}.brand{width:165px}.brand img{height:45px}.header-actions{gap:3px}.back{display:none}.languages button,.theme-toggle{min-width:35px;min-height:44px}.hero{padding-top:30px}.hero h1{font-size:clamp(36px,7.6vw,55px);line-height:1.12;margin-top:22px}.hero-layout{grid-template-columns:1fr;gap:15px}.hero-story{padding-bottom:12px}.hero-intro{font-size:18px}.hero-art{max-width:375px;margin-bottom:28px}.hero-art img{max-height:390px}.project-facts{grid-template-columns:1fr 1fr;gap:24px 20px;padding-block:23px}.chapter-nav .shell{gap:22px}.chapter-nav a{font-size:12px;padding-block:13px}.chapter{padding-block:49px 52px}.section-heading{gap:12px;margin-bottom:25px}.section-number{font-size:11px}h2{font-size:29px;line-height:1.2}.split-copy,.research-layout,.ai-choices{grid-template-columns:1fr;gap:24px}.lead{font-size:21px}.family-path{grid-template-columns:1fr;gap:21px;margin-top:22px;padding-bottom:20px}.family-path li{padding-top:15px}.family-path li:not(:last-child):after{content:none}.family-path p{max-width:55ch}.research-layout h3{font-size:25px}.character-lineup{margin-bottom:18px}.character-lineup img{max-height:165px}.preference-evidence{padding:0}.preference-key{flex-wrap:nowrap}.preference-key strong{font-size:13px}.decision{grid-template-columns:25px 1fr;gap:14px;padding-block:23px}.decision>div:last-child{grid-column:2}.decision-choice{margin-top:8px}.decision h3{font-size:21px}.product-showcase{grid-template-columns:1fr;gap:34px;margin-top:40px}.app-screen{max-width:220px}.app-screen>img{max-height:420px}.product-showcase h3{font-size:25px}.website-preview img{max-height:240px}.section-status{margin-top:0;gap:7px}.ai-flow{grid-template-columns:1fr 1fr;gap:30px 22px;margin-block:26px}.ai-flow li:nth-child(2):after{content:none}.ai-choices{gap:30px}.quality-case{grid-template-columns:1fr;gap:27px;padding:23px 20px;margin-top:26px}.quality-case h3{font-size:24px}.audit-findings>div{grid-template-columns:1fr;gap:7px}.detail-content{padding-inline:12px}.detail-content iframe{height:480px}.evidence-detail summary{padding-inline:14px}.status-ledger>div{grid-template-columns:1fr;gap:8px;padding-block:20px}.reflection{margin-top:32px}.reflection h3{font-size:23px}.reflection p{font-size:17px}.closing{padding-block:40px}.closing-actions{gap:12px 25px}.next-project{margin-left:0;display:block;flex-basis:100%;margin-top:22px}}
.evaluation-example{margin-top:42px;padding-top:32px;border-top:1px solid var(--line)}.evaluation-example>p{max-width:85ch}.evaluation-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;margin:26px 0 20px}.evaluation-row p{font-size:15px;margin-top:12px}.delivery-records{margin:32px 0 22px}.delivery-records article{display:grid;grid-template-columns:.8fr 1.4fr;gap:64px;padding:25px 0;border-bottom:1px solid var(--line)}.delivery-records article:first-child{border-top:1px solid var(--line)}.delivery-records p{margin:0;font-size:15px}.delivery-records h3{font-size:22px;max-width:27ch}
@media(max-width:720px){.evaluation-row,.delivery-records article{grid-template-columns:1fr;gap:18px}.evaluation-example{margin-top:30px;padding-top:26px}.delivery-records h3{max-width:none}}
.ar-detail{width:min(1180px,calc(100% - 88px));margin:28px auto 0}.ar-detail model-viewer{display:block;width:100%;height:380px;background:transparent}.ar-detail model-viewer img{height:100%;width:100%;object-fit:contain}.ar-detail .evidence-note{margin-top:14px}.ar-detail model-viewer:not(:defined){display:block}
@media(max-width:1000px){.ar-detail{width:calc(100% - 54px)}}@media(max-width:720px){.ar-detail{width:calc(100% - 40px);margin-top:20px}.ar-detail model-viewer{height:300px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
/* Product-led exhibits and interactions */
.reading-progress{position:fixed;z-index:30;top:0;left:0;width:100%;height:3px;background:var(--accent);transform:scaleX(0);transform-origin:left;pointer-events:none}
.section-intro{font-size:19px;max-width:78ch;line-height:1.65;margin-bottom:34px}
.experience-showcase{margin-top:45px}.experience-controls{display:flex;justify-content:center;gap:6px;margin-bottom:30px}
.experience-controls button{padding:10px 22px;min-height:46px;background:transparent;border:1px solid var(--line);border-radius:99px;font-size:14px;transition:background .25s,color .25s}
.experience-controls button[aria-pressed="true"]{background:var(--accent);color:var(--bg);border-color:var(--accent)}
.experience-labels{display:grid;grid-template-columns:1fr 1fr;gap:26%;text-align:center}.experience-labels h3{font-size:23px}.experience-labels p{font-size:14px;margin-top:8px}
.experience-stage{display:grid;grid-template-columns:minmax(0,1fr) 160px minmax(0,1fr);align-items:center;gap:20px;max-width:1000px;margin:32px auto}
.experience-stage figure{max-width:310px;margin:auto;transform:scale(.93);opacity:.65;transition:transform .55s cubic-bezier(.16,1,.3,1),opacity .4s;transform-origin:center}
[data-experience="child"] [data-screen="child"],[data-experience="parent"] [data-screen="parent"]{transform:scale(1);opacity:1}
.device-frame{padding:6px;border:1px solid oklch(48% .01 295);border-radius:35px;background:oklch(18% .006 295);box-shadow:0 24px 45px oklch(5% .01 295 / .18);overflow:hidden}.device-frame img{width:100%;border-radius:28px}
.experience-bridge{text-align:center}.experience-bridge img{width:120px;margin:auto}.experience-bridge>span{display:block;color:var(--accent);font-size:34px}.experience-bridge p{font-size:14px}
.journey-insight{display:flex;align-items:baseline;gap:28px;max-width:830px;margin:30px auto 18px;min-height:65px}.insight-number{color:var(--accent);font-size:12px;white-space:nowrap}.journey-insight p{font-size:17px;color:var(--ink)}.experience-showcase>.evidence-note{text-align:center;margin:auto;max-width:90ch}
.scope-board{margin-top:30px}.scope-row{display:grid;grid-template-columns:28px 1.3fr 1fr;gap:26px;padding:26px 0;border-top:1px solid var(--line)}.scope-row h3{font-size:22px}.scope-row p{font-size:15px;margin-top:10px}.scope-row>.tradeoff{align-self:center;margin:0}
.physical-digital{display:grid;grid-template-columns:.8fr 1fr 1fr;align-items:center;gap:42px;margin:64px 0 40px;perspective:1100px}.book-object{transform:rotateY(12deg) rotateZ(-4deg);transition:transform .6s cubic-bezier(.16,1,.3,1);max-width:265px;margin:auto;box-shadow:14px 20px 25px oklch(5% .01 295 / .2)}.book-object:hover{transform:rotateY(0) rotateZ(0)}.book-object img{border-radius:2px 8px 8px 2px}.bridge-copy h3{font-size:27px}.bridge-copy p{font-size:15px}.ar-arrow{display:block;color:var(--accent);font-size:38px;margin-top:16px}
.inline-model{min-width:0;text-align:center}.inline-model model-viewer{display:block;width:100%;height:380px;--poster-color:transparent;background:transparent}.inline-model model-viewer img{width:100%;height:100%;object-fit:contain}.inline-model figcaption{margin-top:10px}.inline-model model-viewer:focus-visible{outline:2px solid var(--accent)}
.deep-dive{border-block:1px solid var(--line);margin-top:32px}.deep-dive+.deep-dive{border-top:0}.deep-dive summary{padding:20px 32px 20px 0;cursor:pointer;position:relative;list-style:none;font-size:15px}.deep-dive summary::-webkit-details-marker{display:none}.deep-dive summary:after{content:"+";position:absolute;right:4px;top:15px;font-size:25px;color:var(--accent)}.deep-dive[open] summary:after{content:"−"}.deep-dive summary:hover{color:var(--accent)}.detail-columns{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:35px;padding:10px 0 30px}.detail-columns h3{font-size:19px}.detail-columns p{font-size:14px;margin-top:13px}
.story-lab{display:grid;grid-template-columns:.8fr 1.2fr;border:1px solid var(--line);border-radius:16px;overflow:hidden;margin:34px 0;background:var(--surface)}
.cast-panel{padding:38px 30px}.cast-panel h3{font-size:clamp(28px,3vw,38px);line-height:1.13;letter-spacing:-.035em}.cast-panel>p{font-size:14px;margin-top:18px}.cast-options{display:flex;gap:10px;margin:30px 0}.cast-choice{position:relative;flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 5px;border:1px solid transparent;border-radius:14px;background:transparent;transition:background .2s,transform .25s,border-color .2s}.cast-choice img{width:92px;transition:transform .35s cubic-bezier(.16,1,.3,1);filter:saturate(.6)}.cast-choice:hover img{transform:translateY(-6px)}.cast-choice[aria-pressed="true"]{border-color:var(--accent);background:color-mix(in oklch,var(--accent) 9%,transparent)}.cast-choice[aria-pressed="true"] img{filter:none}.cast-choice>span:not(.cast-check){font-size:14px}.cast-check{position:absolute;right:5px;top:3px;color:var(--accent);font-size:19px}
.story-preview{padding:32px 34px;background:oklch(26% .048 150);color:oklch(95% .015 85);position:relative;min-width:0}.story-preview-top{display:flex;justify-content:space-between;gap:16px;font-size:11px;color:oklch(80% .06 150);margin-bottom:24px}.story-preview>h3{font-family:var(--serif);font-size:30px;line-height:1.17;min-height:70px;letter-spacing:-.025em;max-width:23ch}
.module-track{display:flex;flex-wrap:wrap;gap:6px;margin:22px 0}.module-track button{background:transparent;border:1px solid oklch(50% .055 150);border-radius:6px;padding:7px 10px;min-height:40px;font-size:12px;color:oklch(88% .025 150)}.module-track button[aria-pressed="true"]{background:oklch(82% .1 150);border-color:transparent;color:oklch(23% .04 150)}
.story-pages{min-height:225px;padding-top:20px;border-top:1px solid oklch(47% .055 150)}.story-pages p{font-size:15px;line-height:1.8;color:oklch(91% .016 85);max-width:60ch}.story-segment-label{display:flex;align-items:center;gap:10px;color:oklch(81% .08 150);font-size:12px;margin-bottom:12px}.story-segment-label img{width:40px;height:40px;border-radius:50%}.story-turn{animation:story-in .35s cubic-bezier(.16,1,.3,1)}
@keyframes story-in{from{opacity:.35;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}
.ai-takeaways{display:grid;grid-template-columns:1fr 1fr;gap:65px;margin-block:32px}.ai-takeaways h3{font-size:21px}.ai-takeaways p{font-size:15px;margin-top:12px}
.approval-story{display:grid;grid-template-columns:1fr 1fr;gap:65px;margin-block:36px}.approval-story p{font-size:16px}.approval-states{display:grid;grid-template-columns:1fr;gap:10px;align-content:center}.approval-states>div{padding:17px 20px;border:1px solid var(--line);border-radius:8px}.approval-states span{font-size:12px;color:var(--muted)}.approval-states>span{justify-self:center;font-size:24px;color:var(--accent)}.approval-states h4{margin-top:6px;font-size:18px}.approval-after{background:color-mix(in oklch,var(--accent) 9%,transparent);border-color:var(--accent)!important}
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.chapter-nav .shell{scrollbar-width:none}.chapter-nav .shell::-webkit-scrollbar{display:none}
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/* Shared portfolio case-study framework: Colora Lab / BirthCare XR. */
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.hero{padding-top:152px;padding-bottom:52px;border-bottom:1px solid var(--line)}
.hero-layout{gap:clamp(36px,6vw,100px)}
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.chapter-nav.rail{position:fixed;inset:50% auto auto 32px;transform:translateY(-38%);z-index:11;display:grid;gap:0;width:204px;border:0;background:transparent}
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.chapter-body .split-copy{grid-template-columns:1fr;gap:22px}
.chapter-body .split-copy p+p{margin:0}
.chapter-body .lead{font:400 17px/1.65 var(--sans);letter-spacing:0;color:var(--muted)}
.chapter-body .research-layout{grid-template-columns:1fr;gap:28px}
.chapter-body .research-layout>div>h3{font:500 23px/1.25 var(--sans)}
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.closing h2{font:400 clamp(43px,5vw,72px)/1.02 var(--serif)}
@media(min-width:1321px){
 main>.shell{width:auto;max-width:1180px;margin-left:max(260px,calc((100% - 1180px)/2));margin-right:max(40px,calc((100% - 1180px)/2))}
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@media(min-width:1321px) and (max-width:1550px){
 .chapter-grid{grid-template-columns:190px minmax(0,1fr);gap:50px}
 .chapter-head h2{font-size:40px}
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 .chapter-body .cast-panel{display:grid;grid-template-columns:1fr 1fr;column-gap:26px}
 .chapter-body .cast-options{grid-column:2;grid-row:1/4;margin:0;align-self:center}
 .chapter-body .cast-panel>.evidence-note{grid-column:1/-1}
 .chapter-body .story-pages{min-height:190px}
}
@media(max-width:1320px){
 .chapter-nav.rail{display:none}
 .shell{width:min(980px,calc(100% - 64px))}
 .chapter-grid{grid-template-columns:1fr;gap:30px}
 .chapter-head{position:static;display:flex;align-items:baseline;gap:15px}
 .chapter-head h2{margin:0;font-size:38px}
 .chapter-lede{max-width:850px}
 .chapter-body .research-layout{grid-template-columns:1fr 1fr;gap:40px}
 .chapter-body .physical-digital{grid-template-columns:.7fr 1.6fr;gap:30px}
 .chapter-body .bridge-copy{grid-column:1/-1;grid-row:1}
 .chapter-body .story-lab{grid-template-columns:.85fr 1.15fr}
 .chapter-body .approval-story{grid-template-columns:1fr 1fr;gap:40px}
 .chapter-body .approval-states{grid-template-columns:1fr}
 .chapter-body .approval-states>span{transform:none}
}
@media(max-width:900px){
 .shell{width:min(740px,calc(100% - 48px))}
 .site-header.shell{padding:19px 24px}
 .hero{padding-top:124px}
 .chapter-body .physical-digital{grid-template-columns:.7fr 1.6fr}
 .chapter-body .bridge-copy{grid-column:1/-1;grid-row:1}
 .chapter-body .story-lab{grid-template-columns:1fr}
 .chapter-body .research-layout,.chapter-body .approval-story{grid-template-columns:1fr}
 .chapter-body .preference-evidence{max-width:560px}
}
@media(max-width:720px){
 .chapter-body .experience-stage{display:block;max-width:290px}
 .chapter-body .story-preview>h3{font-size:29px}
 .chapter-body .story-pages{min-height:260px}
 .chapter-body .story-preview-top{flex-wrap:nowrap}
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 .chapter-body .ai-takeaways{grid-template-columns:1fr;gap:28px}
 .chapter-body .cast-panel h3{font-size:28px}
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@media(max-width:560px){
 .chapter-body .physical-digital{grid-template-columns:1fr;gap:28px}
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 .shell{width:calc(100% - 34px)}
 .site-header.shell{height:78px;padding:13px 17px}
 .site-header .brand{width:150px}
 .hero{padding-top:110px;padding-bottom:36px}
 .chapter{padding-block:85px}
 .chapter-head h2{font-size:34px}
 .chapter-lede{font-size:29px;margin-bottom:25px}
 .chapter-body .scope-row{grid-template-columns:24px minmax(0,1fr);gap:12px 15px}
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}
@media(prefers-reduced-motion:reduce){.chapter-nav.rail a,.chapter-nav.rail a::before{transition:none}}
.research-followup{margin-top:80px;padding-top:64px;border-top:1px solid var(--line);scroll-margin-top:120px}
@media(max-width:560px){.research-followup{margin-top:55px;padding-top:45px}}
/* Current app captures already include their physical device frames. */
.device-frame.captured-device{padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;overflow:visible}
.device-frame.captured-device img{border-radius:0}
.experience-stage figure{opacity:1}

/* Real, on-demand web apps inside the existing paired-phone exhibit. */
.experience-stage .app-preview{width:100%;transform:none}
.app-preview .device-frame{position:relative;aspect-ratio:390/800}
.app-preview .app-poster{display:block;width:100%;height:100%;object-fit:fill}
.app-launch{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:20px;border-radius:35px;background:oklch(14% .01 295 / .24)}
.app-launch button{display:flex;align-items:center;gap:9px;min-height:48px;padding:12px 18px;border:1px solid oklch(75% .025 295);border-radius:99px;background:oklch(20% .018 295);color:oklch(97% .008 295);box-shadow:0 6px 25px oklch(10% .008 295 / .35);font-size:14px}
.app-launch button:hover{background:oklch(32% .05 150)}
.app-status{margin:12px 0 0;text-align:center;font-size:12px;color:oklch(98% .008 295);background:oklch(20% .018 295);border-radius:8px}
.app-status:not(:empty){padding:8px 12px}
.app-preview .device-frame[data-app-state="ready"]{border:6px solid oklch(22% .008 295);padding:0;border-radius:34px;background:oklch(97% .008 95);overflow:hidden;box-shadow:0 20px 40px oklch(8% .008 295 / .15)}
.app-preview iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:oklch(97% .008 95);visibility:hidden}
.app-preview [data-app-state="ready"] iframe{visibility:visible}
.app-preview [data-app-state="ready"] .app-launch,.app-preview [data-app-state="ready"] .app-poster{display:none}
.app-tools{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:14px 4px 0;font-size:11px;color:var(--muted)}
.app-tools button{background:none;border:0;padding:8px 0;min-height:40px;color:var(--accent);font:inherit}
.app-tools button:hover{text-decoration:underline;text-underline-offset:4px}
.app-preview button:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
@media(prefers-reduced-motion:reduce){.experience-stage .app-preview{animation:none}}


/* Scroll-linked evidence exhibit. The document remains fully readable without JavaScript. */
.character-morph-exhibit{min-width:0;margin:0}.morph-scroll{height:170vh;min-height:740px;position:relative}.morph-sticky{position:sticky;top:92px;height:calc(100vh - 116px);min-height:510px;overflow:visible;border:0;border-radius:0;background:transparent;isolation:isolate}.morph-plot{position:absolute;inset:0;overflow:visible}.morph-plot:before{content:none}.morph-plot:after{content:none}.morph-card{--x:0px;--y:0px;--r:0deg;--s:1;position:absolute;left:50%;top:50%;width:clamp(58px,7vw,92px);aspect-ratio:3/4;object-fit:cover;border-radius:12px;transform:translate(-50%,-50%) translate3d(var(--x),var(--y),0) rotate(var(--r)) scale(var(--s));filter:drop-shadow(0 14px 22px rgba(0,0,0,.35)) drop-shadow(0 4px 6px rgba(0,0,0,.18));will-change:transform;pointer-events:none;transition:filter .3s ease}.morph-message{display:none}.morph-prompt{display:none}
.cosmos-exhibit{position:relative;margin:56px 0 0}
.cosmos-controls{display:flex;justify-content:center;gap:12px;margin:16px 0}
.cosmos-controls button{min-height:44px;min-width:44px;padding:8px 16px;border:1px solid var(--line);border-radius:99px;background:var(--surface);color:var(--ink);font-size:13px}
.cosmos-controls button:hover{border-color:var(--accent)}
.hero-quick-links{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center}
.studio-product-view{margin:36px 0 54px;scroll-margin-top:110px}
.studio-product-view img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:8px}
.studio-product-view figcaption{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;margin-top:16px;color:var(--muted);font-size:13px;line-height:1.65}
.studio-product-view figcaption p{max-width:62ch;font-size:13px;margin:0}
.studio-product-view a{color:var(--accent);font-size:13px}
.cosmos-exhibit:not([data-live]) .cosmos-controls{display:none}
.studio-roadmap{margin-top:58px;padding:32px 0;border-block:1px solid var(--line)}
.studio-roadmap-status{color:var(--accent);font-size:12px;font-weight:600}
.studio-roadmap>h3{font-size:clamp(25px,3vw,36px);line-height:1.2;margin:14px 0 18px;max-width:28ch}
.studio-workflow{list-style:none;padding:0;margin:32px 0;display:grid;grid-template-columns:1fr 1fr;gap:32px}
.studio-workflow li>span{color:var(--accent);font-size:12px}
.studio-workflow h4{font-size:17px;margin:8px 0}
.studio-workflow p{font-size:14px;line-height:1.7}
.studio-roadmap-boundary{font-size:13px;max-width:70ch}
.studio-workflow li:last-child { grid-column: 1 / -1; max-width: 65ch; }
.studio-execution { padding: 24px 0; margin-bottom: 26px; border-block: 1px solid var(--line); }
.studio-execution h4 { font-size: 15px; margin-bottom: 12px; }
.studio-execution p { font-size: 14px; line-height: 2; color: var(--accent); }
.studio-roadmap .deep-dive { margin-top: 28px; }
.studio-roadmap .deep-dive > p { padding-top: 20px; font-size: 14px; line-height: 1.75; }
@media(max-width:560px){.studio-workflow{grid-template-columns:1fr;gap:24px}}
@media(min-width:1321px){.cosmos-exhibit .cosmos-stage{--rail-col:calc(230px + clamp(42px,7vw,110px));margin-left:calc(-1 * var(--rail-col));width:calc(100% + var(--rail-col))}}
.cosmos-stage{position:relative;width:100%;height:clamp(380px,56vw,820px);display:flex;justify-content:flex-end}
.cosmos-frame{position:relative;height:100%;aspect-ratio:1;max-width:100%;overflow:hidden;border-radius:18px;background:radial-gradient(circle at 50% 48%,oklch(from var(--surface) l c h / .9),transparent 70%);touch-action:pan-y}
.cosmos-canvas{display:block;width:100%;height:100%;cursor:grab}
.cosmos-label{position:absolute;left:0;right:0;bottom:14px;margin:0;max-width:none;padding:0 16px;text-align:center;font:500 14px/1.4 var(--sans);color:var(--muted);pointer-events:none;min-height:20px;letter-spacing:.01em}
.cosmos-exhibit[data-live] .cosmos-fallback,.cosmos-exhibit[data-live] .cosmos-static-note{display:none}
.cosmos-static-note{margin:14px 0 0;font-size:13px;color:var(--muted)}
.cosmos-fallback{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:14px;margin:0;padding:0;list-style:none}
.cosmos-fallback img{width:100%;aspect-ratio:3543/4212;border-radius:12px;object-fit:cover}
.cosmos-exhibit:not([data-live]) .cosmos-stage{display:none}
.cosmos-caption{margin-top:22px;max-width:640px}
.cosmos-caption h3{font-size:clamp(22px,2.4vw,32px);line-height:1.15;color:var(--ink);margin-bottom:12px}
.cosmos-caption p{color:var(--muted);font-size:15px;line-height:1.55}
@media(max-width:720px){.cosmos-stage{height:clamp(420px,120vw,560px)}.cosmos-frame{width:100%;aspect-ratio:auto}}
.morph-marquee{position:absolute;inset:0;display:flex;align-items:center;overflow:hidden;pointer-events:none;opacity:0;transition:opacity .2s linear;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.morph-marquee-track{display:flex;gap:22px;width:max-content;animation:morph-marquee-slide 40s linear infinite;padding-inline:11px}
.morph-marquee-card{width:clamp(94px,11vw,140px);aspect-ratio:3/4;object-fit:cover;border-radius:14px;flex-shrink:0;filter:drop-shadow(0 14px 22px rgba(0,0,0,.35)) drop-shadow(0 4px 6px rgba(0,0,0,.18))}
@keyframes morph-marquee-slide{from{transform:translate3d(0,0,0)}to{transform:translate3d(calc(-50% - 11px),0,0)}}
@media (prefers-reduced-motion: reduce){.morph-marquee-track{animation-duration:120s}}.morph-result{padding:18px 2px 0}.morph-result h3{font-size:16px}.morph-result figcaption{margin-top:18px;max-width:55ch}.morph-result .preference-key{margin-top:13px}@keyframes morph-nudge{50%{transform:translateY(4px)}}
@media(max-width:720px){.morph-scroll{height:130vh;min-height:630px}.morph-sticky{top:80px;height:calc(100vh - 98px);min-height:480px;border-radius:14px}.morph-card{width:clamp(44px,13vw,67px)}.morph-message strong{font-size:56px}.morph-result{padding-top:14px}}
@media(prefers-reduced-motion:reduce){.morph-scroll{height:auto;min-height:0}.morph-sticky{position:relative;top:auto;height:500px}.morph-prompt{display:none}.morph-prompt:before{animation:none}}

/* READABILITY BUMP: case-study body/meta; keep large display type as-is */
/* READABILITY BUMP: case-study body/meta; keep large display type as-is */
.section-caption,
.chapter-head .section-number,
.decision-index,
.tag,
.evidence-note,
.graph-note,
.cosmos-static-note,
.cosmos-caption p,
figcaption,
.audit-findings dt { font-size: 13px !important; }
.chapter-body p,
.section-intro,
.hero-intro,
.scope-row p,
.detail-columns p,
.studio-execution p,
.deep-dive p,
.deep-dive dd,
.claim-panel p,
.os-copy p { font-size: 16.5px !important; line-height: 1.7 !important; }
.chapter-lede,
.chapter-head h2,
.chapter-body h3:not(.chapter-lede) { /* slight bump only on mid headings */
}
.chapter-lede { font-size: clamp(28px, 3.2vw, 40px) !important; }
.chapter-head h2 { font-size: clamp(30px, 3.4vw, 42px) !important; }
.chapter-body h3,
.scope-row h3,
.studio-execution h4,
.jira-board h4,
.detail-columns h4 { font-size: clamp(20px, 2.2vw, 26px) !important; }
.tag { font-size: 12.5px !important; padding-block: 5px; }
.role-badges .tag { font-size: 13px !important; }
.preference-bar,
.stat-label,
.exhibit-header a { font-size: 13px !important; }
.exhibit-header h3 { font-size: 22px !important; }
@media (max-width: 720px) {
  .chapter-body p,
  .section-intro,
  .hero-intro { font-size: 16px !important; }
}



/* CHAPTER RAIL ONE-LINE */
.chapter-nav.rail {
  width: 220px !important;
}
.chapter-nav.rail a {
  display: flex !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  gap: 8px !important;
  white-space: nowrap !important;
  font-size: 10px !important;
  line-height: 1 !important;
  padding: 6px 0 !important;
  min-height: 0 !important;
}
.chapter-nav.rail .rail-number {
  font-size: 10px !important;
  line-height: 1 !important;
  flex: 0 0 auto;
}
.chapter-nav.rail .rail-title {
  font-size: 9px !important;
  letter-spacing: .08em !important;
  text-transform: uppercase !important;
  line-height: 1 !important;
  white-space: nowrap !important;
  opacity: .8;
  flex: 0 1 auto;
}