/* Hanyu Liu — portfolio v4
   White ground, one grotesk (Schibsted Grotesk), one deep blue. Editorial scale; the project visuals carry the colour. */
@font-face{font-family:"Schibsted Grotesk";font-style:normal;font-weight:400 900;font-display:swap;src:url(fonts/schibsted-grotesk-latin-wght-normal.woff2) format("woff2")}
@font-face{font-family:"Schibsted Grotesk";font-style:italic;font-weight:400 900;font-display:swap;src:url(fonts/schibsted-grotesk-latin-wght-italic.woff2) format("woff2")}
@font-face{font-family:"Geist Mono";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/geist-mono-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Geist Mono";font-style:normal;font-weight:500;font-display:swap;src:url(fonts/geist-mono-latin-500-normal.woff2) format("woff2")}

:root{
  --bg:#FFFFFF; --ink:#121317; --ink-2:#3A3F49; --mute:#6B7280; --faint:#A0A6B0;
  --line:rgba(18,19,23,.10); --line-2:rgba(18,19,23,.18); --wash:#F5F6F8;
  --accent:#1F3FD1; --accent-ink:#182FA8; --accent-soft:#ECF0FF; --warn:#A86A00;
  --text:"Schibsted Grotesk","Helvetica Neue",Arial,sans-serif;
  --mono:"Geist Mono","SF Mono",ui-monospace,Menlo,monospace;
  --maxw:1360px; --gutter:24px; --ease:cubic-bezier(.2,.8,.2,1); --r:4px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.5 var(--text);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:"ss01" 0}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:3px}
h1,h2,h3,h4{margin:0;font-weight:500;letter-spacing:-.025em;line-height:1.05;text-wrap:balance}
h1{font-size:clamp(2.6rem,6.6vw,6.2rem);letter-spacing:-.035em;line-height:.95}
h2{font-size:clamp(1.55rem,2.5vw,2.3rem)}
h3{font-size:1.25rem;letter-spacing:-.015em}
p{margin:0 0 1em}
.mute{color:var(--mute)} .small{font-size:.9rem;color:var(--mute)} .mono{font-family:var(--mono);font-size:.82em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.g12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gutter)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* header */
.head{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.88);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.head .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.head .name{font-weight:500;letter-spacing:-.01em;font-size:1.02rem}
.head .name span{color:var(--mute);font-weight:400}
.head nav{display:flex;gap:26px}
.head nav a{color:var(--mute);font-size:.95rem;padding:6px 0;border-bottom:1px solid transparent;transition:color .2s}
.head nav a:hover,.head nav a[aria-current]{color:var(--ink)}
.head nav a[aria-current]{border-bottom-color:var(--ink)}
@media (max-width:640px){.head nav{gap:14px}.head nav a{font-size:.88rem}.head .name span{display:none}}

/* hero */
.hero{padding:104px 0 72px}
.hero h1{max-width:16ch}
.hero .sub{margin:28px 0 0;font-size:clamp(1.15rem,1.7vw,1.45rem);line-height:1.35;letter-spacing:-.012em;color:var(--ink-2);max-width:44ch}
.hero .row{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gutter);margin-top:44px;align-items:end}
.hero .credo{grid-column:1/span 7;font-size:1rem;color:var(--mute);max-width:52ch;margin:0}
.hero .credo b{font-weight:500;color:var(--ink)}
.hero .jump{grid-column:9/span 4;justify-self:end;display:flex;gap:18px;font-size:.95rem}
.hero .jump a{border-bottom:1px solid var(--line-2);padding-bottom:2px}
.hero .jump a:hover{border-bottom-color:var(--ink)}
@media (max-width:900px){.hero .credo{grid-column:1/-1}.hero .jump{grid-column:1/-1;justify-self:start}}
@media (max-width:640px){.hero{padding:64px 0 44px}.hero .row{margin-top:30px}}

/* sections */
.sec{padding:40px 0 16px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:0 0 26px;padding-top:22px;border-top:1px solid var(--ink)}
.sec-head h2{font-size:1.05rem;font-weight:500;letter-spacing:0}
.sec-head .n{font-size:.9rem;color:var(--mute);max-width:46ch;text-align:right}
@media (max-width:640px){.sec-head{flex-direction:column;gap:4px}.sec-head .n{text-align:left}}

/* featured case */
.feature{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gutter);padding-bottom:64px;color:inherit}
.feature .media{grid-column:1/span 8;position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--wash);border-radius:var(--r);box-shadow:inset 0 0 0 1px var(--line);transform:translateZ(0)}
.feature .side{grid-column:9/span 4;display:flex;flex-direction:column;gap:18px;align-self:stretch}
.feature .side .k{font-size:.88rem;color:var(--mute);margin:0}
.feature .side h3{font-size:clamp(1.5rem,2.4vw,2.1rem);letter-spacing:-.025em;line-height:1.05}
.feature .side p.what{color:var(--ink-2);margin:0;max-width:34ch;font-size:1.02rem}
.feature .facts{list-style:none;margin:6px 0 0;padding:0;border-top:1px solid var(--ink)}
.feature .facts li{display:grid;grid-template-columns:minmax(0,1fr);padding:11px 0;border-bottom:1px solid var(--line-2)}
.feature .facts b{display:block;font-weight:500;font-size:1.45rem;letter-spacing:-.025em;line-height:1.1}
.feature .facts span{display:block;color:var(--mute);font-size:.9rem;margin-top:2px}
.feature .more{margin-top:auto;font-size:.95rem;border-bottom:1px solid var(--line-2);align-self:flex-start;padding-bottom:2px}
.feature:hover .more{border-bottom-color:var(--ink)}
@media (max-width:900px){.feature .media{grid-column:1/-1}.feature .side{grid-column:1/-1}}

/* cards */
.cards{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:44px var(--gutter);padding-bottom:64px}
.card{grid-column:span 6;display:block;color:inherit;position:relative}
.card.feat{grid-column:span 12}
.card.wide{grid-column:span 7} .card.narrow{grid-column:span 5}
.card.small{grid-column:span 4}
.card.third{grid-column:span 4}
@media (max-width:900px){.card,.card.small,.card.wide,.card.narrow{grid-column:span 12}.card.third{grid-column:span 6}}
@media (max-width:640px){.card.third{grid-column:span 12}}
.card .media{position:relative;aspect-ratio:16/10;border-radius:var(--r);overflow:hidden;background:var(--wash);box-shadow:inset 0 0 0 1px var(--line);transform:translateZ(0)}
.card.narrow .media{aspect-ratio:8/7}
@media (max-width:900px){.card.narrow .media{aspect-ratio:16/10}}
.card.feat .media{aspect-ratio:16/10}
.card.small .media{aspect-ratio:4/3}
.card.third .media{aspect-ratio:4/3}
.card.third .cap h3{font-size:1.1rem}
.card .media>img,.card .media>video,.card .media>canvas,.card .media>svg,.card .media .seq img,.feature .media>img,.feature .media .seq img{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:cover}
.card .media .seq img,.feature .media .seq img{opacity:0;transition:opacity .5s var(--ease)}
.card .media .seq img.on,.feature .media .seq img.on{opacity:1}
.card .media>video{opacity:0;transition:opacity .35s var(--ease)}
.card:hover .media>video.ready,.card:focus-within .media>video.ready{opacity:1}
.card .status,.feature .status{position:absolute;left:14px;top:12px;z-index:2;font:500 .78rem/1 var(--text);letter-spacing:0;padding:7px 10px;border-radius:3px;background:rgba(255,255,255,.92);color:var(--ink);box-shadow:0 0 0 1px var(--line)}
.card .status.proto,.feature .status.proto{color:var(--accent-ink)}
.card .cap{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:8px 24px;padding:14px 0 0}
.card .cap h3{font-size:1.2rem;font-weight:500;transition:color .2s}
.card .cap .tags{display:block;margin-top:4px;color:var(--mute);font-size:.95rem;max-width:34ch}
.card .cap .num{text-align:left;font-size:.9rem;color:var(--mute);max-width:26ch;padding-top:3px}
.card .cap .num b{display:block;color:var(--ink);font-weight:500;font-size:1.05rem;letter-spacing:-.015em}
.card:hover .cap h3{color:var(--accent)}
@media (max-width:640px){.card .cap{grid-template-columns:1fr;gap:6px}}
.hint{position:absolute;right:12px;bottom:12px;z-index:2;font:500 .76rem/1 var(--text);color:var(--mute);background:rgba(255,255,255,.9);padding:6px 9px;border-radius:3px;opacity:0;transition:opacity .3s}
.card:hover .hint,.feature:hover .hint{opacity:1}

/* principles */
.think{padding:8px 0 72px}
.think .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gutter)}
.think h3{font-size:clamp(1.35rem,2vw,1.7rem);letter-spacing:-.025em;max-width:12ch;margin-bottom:12px}
.think p{color:var(--ink-2);font-size:.98rem;max-width:36ch;margin:0}
.think p a{border-bottom:1px solid var(--line-2)} .think p a:hover{border-bottom-color:var(--ink)}
@media (max-width:900px){.think .grid{grid-template-columns:1fr;gap:32px}.think h3{max-width:none}}

/* footer / contact */
.foot{border-top:1px solid var(--ink);padding:40px 0 72px;color:var(--mute);font-size:.95rem}
.foot .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px}
.foot h4{font-size:.88rem;font-weight:500;color:var(--mute);margin:0 0 8px;letter-spacing:0}
.foot a{color:var(--ink);border-bottom:1px solid var(--line-2)} .foot a:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* project pages */
.phead{padding:80px 0 44px;border-bottom:1px solid var(--line)}
.phead .k{font-size:.95rem;color:var(--mute);margin:0 0 18px}
.phead h1{max-width:18ch;font-size:clamp(2.3rem,5vw,4.6rem)}
.phead .lede{margin:24px 0 0;max-width:58ch;color:var(--ink-2);font-size:1.18rem;line-height:1.45;letter-spacing:-.01em}
.phead .meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px 28px;margin-top:28px;font-size:.9rem}
.phead .meta span{display:block;color:var(--mute);font-size:.82rem;margin-bottom:3px}
.pill{display:inline-block;font-size:.84rem;padding:4px 10px;border-radius:3px;border:1px solid var(--line-2);color:var(--ink-2)}
.pill.live{border-color:var(--ink);color:var(--ink)} .pill.proto{border-color:var(--accent);color:var(--accent-ink)}
.toc{position:sticky;top:60px;z-index:10;background:rgba(255,255,255,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.toc .wrap{display:flex;gap:22px;overflow-x:auto;padding-top:11px;padding-bottom:11px;font-size:.9rem;white-space:nowrap}
.toc a{color:var(--mute)} .toc a:hover{color:var(--ink)}
.sect{padding:64px 0;border-bottom:1px solid var(--line);scroll-margin-top:118px}
.sect > .wrap > span.num{display:none}
.sect h2{margin-bottom:12px}
.sect .intro{max-width:60ch;color:var(--ink-2);font-size:1.08rem;margin-bottom:30px}
.prose p,.prose li{max-width:66ch} .prose ul,.prose ol{padding-left:1.2em} .prose li{margin:.3em 0} .prose h3{margin:22px 0 6px}
.two{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:32px 48px}
figure{margin:0} figure img,figure video{width:100%;height:auto;display:block;border-radius:var(--r);border:1px solid var(--line)}
figcaption{font-size:.9rem;color:var(--mute);margin-top:10px;max-width:70ch}
.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:28px}
.shots.one{grid-template-columns:1fr}
.tour{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(240px,.8fr);gap:28px;align-items:start}
@media (max-width:900px){.tour{grid-template-columns:1fr}}
.tour .steps{display:flex;flex-direction:column;gap:2px}
.tour .steps button{text-align:left;font:inherit;background:transparent;border:0;border-left:2px solid var(--line-2);padding:10px 14px;color:var(--mute);cursor:pointer;transition:all .2s}
.tour .steps button b{display:block;color:var(--ink);font-weight:500;font-size:.95rem}
.tour .steps button span{display:block;font-size:.84rem;margin-top:2px}
.tour .steps button.on{border-left-color:var(--accent);background:var(--accent-soft)}
.tour .steps button.on span{color:var(--ink-2)}
.tour figure img{transition:opacity .3s}
.note{border:1px solid var(--line-2);border-left:3px solid var(--ink);border-radius:4px;padding:14px 16px;font-size:.95rem;color:var(--ink-2);max-width:70ch}
.note.proto{border-left-color:var(--accent)}
.note.pend{border-left-color:var(--warn)}

/* data rows */
.sheet{border-top:1px solid var(--ink);margin:12px 0}
.sheet .r{display:grid;grid-template-columns:minmax(150px,1fr) minmax(0,2.4fr);gap:16px;padding:12px 0;border-bottom:1px solid var(--line-2)}
.sheet .k{color:var(--mute);font-size:.9rem}
.sheet .v b{font-weight:600;font-size:1.3rem;letter-spacing:-.02em;margin-right:8px}
.sheet .note-l{display:block;color:var(--mute);font-size:.86rem;margin-top:3px;max-width:68ch}
@media (max-width:640px){.sheet .r{grid-template-columns:1fr;gap:4px}}
.evidence{border-top:1px solid var(--ink)}
.evidence .e{display:grid;grid-template-columns:minmax(170px,.8fr) minmax(0,2fr);gap:16px;padding:12px 0;border-bottom:1px solid var(--line-2)}
.evidence .e .kw{font-weight:500} .evidence .e .kw span{display:block;font-weight:400;color:var(--mute);font-size:.82rem}
@media (max-width:640px){.evidence .e{grid-template-columns:1fr;gap:4px}}
.pair{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.pair>div{padding:18px 20px 18px 0} .pair>div+div{border-left:1px solid var(--line-2);padding-left:20px}
@media (max-width:640px){.pair>div+div{border-left:0;padding-left:0;border-top:1px solid var(--line-2)}}
.pair .tag{font-size:.8rem;display:block;margin-bottom:8px} .pair .tag.a{color:var(--accent-ink)} .pair .tag.w{color:var(--warn)}
.pair h3{font-size:1.05rem;margin-bottom:6px}

/* controls */
.controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:12px;font-size:.9rem}
.controls button,.controls select,.controls input[type=number]{font:inherit;font-size:.9rem;border:1px solid var(--line-2);background:var(--bg);color:var(--ink);padding:7px 11px;border-radius:4px;max-width:100%}
.controls button{cursor:pointer} .controls button:hover{border-color:var(--ink)} .controls button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.controls label{display:inline-flex;gap:8px;align-items:center;color:var(--ink-2);flex-wrap:wrap;max-width:100%}
.btn{display:inline-block;border:1px solid var(--ink);padding:9px 14px;border-radius:4px;font-size:.92rem;color:var(--ink);background:transparent;transition:all .2s}
.btn.primary{background:var(--ink);color:#fff}
.btn:hover{border-color:var(--accent);color:var(--accent)} .btn.primary:hover{background:var(--accent);border-color:var(--accent);color:#fff}

/* architecture */
.arch{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.9fr);gap:24px}
@media (max-width:900px){.arch{grid-template-columns:1fr}}
.arch svg{width:100%;height:auto}
.arch svg text{font-family:var(--text);font-size:12px;fill:var(--ink)} .arch svg text.sub{fill:var(--mute);font-size:11px}
.arch svg .node{cursor:pointer} .arch svg .node rect{fill:#fff;stroke:var(--ink);stroke-width:1;rx:6}
.arch svg .node.model rect{stroke:var(--accent);stroke-dasharray:4 3} .arch svg .node.human rect{stroke:var(--ink);stroke-dasharray:1 3} .arch svg .node.know rect{fill:var(--wash);stroke:var(--line-2)}
.arch svg .node.on rect{fill:var(--accent-soft);stroke:var(--accent);stroke-width:1.5} .arch svg .node:hover rect{stroke:var(--accent)}
.arch svg .edge{stroke:var(--ink-2);stroke-width:1;fill:none;marker-end:url(#arr)} .arch svg .edge.soft{stroke:var(--faint);stroke-dasharray:3 3}
.arch .panel{border:1px solid var(--line-2);border-radius:var(--r);padding:18px;min-height:220px;font-size:.93rem}
.arch .panel h3{font-size:1.05rem;margin-bottom:8px} .arch .panel .why{color:var(--mute);font-size:.82rem;display:block;margin-bottom:6px} .arch .panel p{max-width:48ch}

/* interactive demo (AQ) */
.demo{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.3fr);border:1px solid var(--line-2);border-radius:6px;overflow:hidden;background:#fff}
@media (max-width:900px){.demo{grid-template-columns:1fr}}
.demo .src{border-right:1px solid var(--line-2);padding:18px;background:var(--wash)} @media (max-width:900px){.demo .src{border-right:0;border-bottom:1px solid var(--line-2)}}
.demo h4{font-weight:500;font-size:.95rem;margin:0 0 10px}
.demo .doc{background:#fff;border:1px solid var(--line);border-radius:4px;padding:10px 12px;font-size:.84rem;margin-bottom:10px}
.demo .doc .t{color:var(--mute);font-size:.76rem;display:block;margin-bottom:4px} .demo .doc .l{display:block;padding:1px 0;border-radius:3px}
.demo .doc .l.hit{background:var(--accent-soft);outline:1px solid var(--accent)} .demo .doc .l.pendhit{background:#FBF3DF;outline:1px solid var(--warn)}
.demo .out{padding:18px}
.steps{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.steps button{font:inherit;font-size:.82rem;border:1px solid var(--line-2);background:transparent;color:var(--ink-2);padding:6px 11px;border-radius:4px;cursor:pointer}
.steps button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px}
.field{border:1px solid var(--line);border-radius:4px;padding:9px 11px;font-size:.86rem;background:#fff}
.field .n{color:var(--mute);font-size:.76rem;display:block} .field .v{font-weight:500}
.field.model{border-color:var(--accent);border-style:dashed} .field.ok{border-color:var(--ink)} .field.pend{border-color:var(--warn);background:#FBF3DF}
.field .src-tag{display:block;font-size:.72rem;color:var(--mute);margin-top:3px} .field.pend .src-tag{color:var(--warn)}
.rows{width:100%;border-collapse:collapse;font-size:.88rem;margin-top:8px}
.rows th,.rows td{text-align:left;padding:7px 8px 7px 0;border-bottom:1px solid var(--line);vertical-align:top}
.rows th{font-weight:500;color:var(--mute);font-size:.8rem}
.rows td.num{font-family:var(--mono);font-size:.84rem;text-align:right;padding-right:0}
.rows td.num button{font:inherit;background:transparent;border:0;border-bottom:1px dashed var(--accent);color:var(--ink);cursor:pointer;padding:0}
.rows td.num button:hover{color:var(--accent)}
.rows tr.total td{border-top:1px solid var(--ink);border-bottom:0;font-weight:500} .rows tr.blocked td{color:var(--mute)}
.trace{margin-top:12px;border:1px solid var(--line-2);border-left:3px solid var(--accent);border-radius:4px;padding:10px 12px;font-size:.84rem}
.trace .f{font-family:var(--mono);font-size:.78rem;display:block;margin:4px 0;white-space:pre-wrap} .trace .s{color:var(--mute)}
.pendbox{border:1px solid var(--warn);background:#FBF3DF;padding:10px 12px;border-radius:4px;font-size:.86rem;margin-top:10px}
.pendbox button{font:inherit;font-size:.82rem;border:1px solid var(--ink);background:#fff;color:var(--ink);padding:5px 10px;border-radius:4px;cursor:pointer;margin:6px 6px 0 0}
.pendbox button:hover{background:var(--ink);color:#fff}
.checklist{list-style:none;padding:0;margin:8px 0 0;font-size:.88rem}
.checklist li{padding:6px 0;border-bottom:1px solid var(--line);display:flex;gap:10px}
.checklist li .m{font-family:var(--mono);font-size:.78rem;min-width:52px;color:var(--mute)} .checklist li.ok .m{color:var(--ink)} .checklist li.hold .m{color:var(--warn)}
.deliver{margin-top:12px;display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:.88rem}
.deliver button{font:inherit;border:1px solid var(--ink);background:var(--ink);color:#fff;padding:8px 14px;border-radius:4px;cursor:pointer}
.deliver button[disabled]{background:transparent;color:var(--faint);border-color:var(--line-2);cursor:not-allowed}
.param{display:flex;gap:14px;flex-wrap:wrap;align-items:center;font-size:.86rem;margin:10px 0 4px}
.param select,.param input{font:inherit;font-size:.86rem;border:1px solid var(--line-2);background:#fff;color:var(--ink);padding:5px 8px;border-radius:4px}
.diff{font-family:var(--mono);font-size:.78rem;color:var(--accent)}

/* geometry explorer */
.geo{display:grid;grid-template-columns:minmax(280px,1.1fr) minmax(240px,.9fr);gap:18px}
.geo .box.draw{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1.7fr) minmax(260px,1fr);gap:20px;align-items:start}
@media (max-width:900px){.geo .box.draw{grid-template-columns:1fr}} @media (max-width:640px){.geo{grid-template-columns:1fr}}
.geo .box{border:1px solid var(--line-2);border-radius:6px;background:#fff;padding:14px}
.geo h4{font-weight:500;font-size:.95rem;margin:0 0 8px}
.geo svg.flat{width:100%;height:auto;display:block;border-radius:4px}
.cand{border:1px solid var(--line);border-radius:4px;padding:10px 12px;margin-bottom:8px;cursor:pointer;font-size:.88rem;background:#fff}
.cand:hover{border-color:var(--accent)} .cand.on{border-color:var(--accent);background:var(--accent-soft)}
.cand .expr{font-family:var(--mono);font-size:.82rem;display:block} .cand .sc{float:right;font-family:var(--mono);font-size:.78rem;color:var(--mute)} .cand .why{display:block;color:var(--ink-2);font-size:.82rem;margin-top:4px}
.bar{height:3px;background:var(--line);border-radius:2px;margin-top:6px;overflow:hidden} .bar i{display:block;height:100%;background:var(--accent)}
.insp dl{margin:0;font-size:.88rem} .insp dt{color:var(--mute);font-size:.78rem;margin-top:8px} .insp dd{margin:0}
.insp .st{display:inline-block;font-family:var(--mono);font-size:.76rem;padding:2px 8px;border:1px solid var(--line-2);border-radius:4px}
.insp .st.derived{border-color:var(--ink)} .insp .st.guessed{border-color:var(--warn);color:var(--warn)} .insp .st.manual{border-style:dashed}
.toggle{display:inline-flex;gap:8px;align-items:center;font-size:.85rem;margin-top:10px;color:var(--ink-2)}
.flat .m{transition:opacity .3s}
.flat.dim .m{opacity:.25} .flat.dim .m.lit{opacity:1}
.flat .m.pulse path{stroke-dasharray:6 4;animation:dash 1.2s linear infinite} @keyframes dash{to{stroke-dashoffset:-20}}

/* separation */
.sep{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.sep .plate{background:#fff;border:1px solid var(--line);padding:8px;border-radius:var(--r)}
.sep .plate canvas{width:100%;display:block;border-radius:4px} .sep .plate span{display:block;font-size:.8rem;color:var(--mute);margin-top:6px}
.layers{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.layers button{font:inherit;font-size:.82rem;border:1px solid var(--line-2);background:#fff;color:var(--ink-2);padding:6px 10px;border-radius:4px;cursor:pointer}
.layers button.on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* work list */
.worklist{border-top:1px solid var(--ink)}
.worklist .item{display:grid;grid-template-columns:minmax(170px,.8fr) minmax(0,2fr);gap:16px;padding:20px 0;border-bottom:1px solid var(--line-2)}
.worklist .item .when{color:var(--mute);font-size:.86rem;margin-top:4px} .kicker{font-weight:500;font-size:1.02rem;margin:0 0 4px}
@media (max-width:640px){.worklist .item{grid-template-columns:1fr;gap:6px}}
.stage{background:var(--wash);border-radius:6px;position:relative;overflow:hidden;border:1px solid var(--line)}
.stage.ratio{aspect-ratio:16/9} .stage canvas,.stage svg{display:block;width:100%;height:100%}
iframe.embed{width:100%;height:560px;border:1px solid var(--line-2);border-radius:6px;background:#fff}

.pipe svg{width:100%;height:auto;display:block}
.pipe svg text{font-family:var(--text)} .pipe svg text.t{font-size:13px;font-weight:500} .pipe svg text.s{font-size:11px}

.phead .meta span.pill{display:inline-block;color:var(--ink)} .phead .meta span.pill.proto{color:var(--accent-ink)} .phead .meta span.pill.live{color:var(--ink)}
@media (max-width:640px){.arch .svgwrap{overflow-x:auto}.arch .svgwrap svg{min-width:760px}.arch .panel{min-width:0}.pipe{overflow-x:auto}.pipe svg{min-width:900px}.flat-wrap{overflow-x:auto}}

/* case summary + decision explorer */
.sum{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:40px 56px;align-items:start}
@media (max-width:900px){.sum{grid-template-columns:1fr}}
.sum-b h3{font-size:1.35rem;margin-bottom:6px}
.dx{display:grid;grid-template-columns:minmax(200px,.9fr) minmax(0,1.6fr);gap:18px;margin-top:14px;border-top:1px solid var(--ink)}
@media (max-width:900px){.dx{grid-template-columns:1fr}}
.dx-list{display:flex;flex-direction:column;padding-top:10px}
.dx-list button{text-align:left;font:inherit;font-size:.95rem;line-height:1.35;background:transparent;border:0;border-left:2px solid var(--line-2);padding:10px 14px;color:var(--mute);cursor:pointer;transition:all .2s}
.dx-list button.on{border-left-color:var(--accent);color:var(--ink);background:var(--accent-soft)}
.dx-list button:hover{color:var(--ink)}
.dx-panel{padding-top:10px}
.dx-table{width:100%;border-collapse:collapse;font-size:.9rem}
.dx-table th,.dx-table td{text-align:left;vertical-align:top;padding:9px 10px 9px 0;border-bottom:1px solid var(--line)}
.dx-table thead th{font-weight:500;color:var(--ink);padding-top:0;font-size:.95rem}
.dx-table thead th.b{color:var(--accent-ink)}
.dx-table tbody th{font-weight:400;color:var(--mute);width:30%}
.dx-table td{color:var(--ink-2)} .dx-table td.b{color:var(--ink)}
.dx-chose{margin:14px 0 0;padding:12px 14px;border-left:3px solid var(--accent);background:var(--accent-soft);font-size:.95rem;color:var(--ink);max-width:60ch}

.sheet .note-l a,.prose a,.sect p a{border-bottom:1px solid var(--line-2)} .sheet .note-l a:hover,.prose a:hover,.sect p a:hover{color:var(--accent);border-bottom-color:var(--accent)}