/* CEO Bench live demo. Turing brand: Poppins, black and white with blue accents.
   Layout: a stepper header, one focused stage per step, a sticky footer with the next step named. */
@font-face{font-family:Poppins;src:url('assets/Poppins-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Poppins;src:url('assets/Poppins-SemiBold.ttf') format('truetype');font-weight:600;font-display:swap}
:root{
 --ink:#0b0d12;--ink2:#2c303a;--muted:#5d6370;--faint:#8b909c;--line:#e6e7eb;--line2:#d6d8de;--bg:#ffffff;--soft:#f6f7f9;--soft2:#eef0f3;
 --blue:#003f9b;--bright:#317eff;--pale:#eef5ff;--pale2:#dbe8ff;
 --good:#157347;--good-bg:#e9f6ee;--bad:#b3261e;--bad-bg:#fdecea;--warn-bg:#fff7df;--warn-line:#f0d98a;
 --night:#11141b;--night2:#1b1f29;--night3:#262b37;--nightink:#e7e9ee;--nightmuted:#9aa1b0;
 --radius:12px;--shadow:0 1px 2px #0b0d120a,0 8px 24px #0b0d1210;--shadow-lift:0 2px 4px #0b0d120d,0 16px 40px #0b0d121a;
 --mono:ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
body{font:15px/1.6 Poppins,"Helvetica Neue",Arial,sans-serif;margin:0;color:var(--ink);background:var(--bg);min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p{margin:0}h1,h2,h3{font-weight:400;line-height:1.2;text-wrap:balance}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:1px solid var(--line2);background:#fff;border-radius:8px;padding:9px 16px;font-size:13px;transition:border-color .15s,background .15s,box-shadow .15s,transform .15s}
button:hover{border-color:var(--bright)}
button:active{transform:translateY(1px)}
button.primary{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 6px 16px #003f9b33}
button.primary:hover{background:#0a4fbd}
button.big{padding:14px 26px;font-size:15px;border-radius:10px}
button:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}
button:focus-visible,input:focus-visible,textarea:focus-visible,a:focus-visible{outline:3px solid var(--bright);outline-offset:2px}
a{color:var(--blue)}
textarea,input[type=text],input[type=number]{width:100%;border:1px solid var(--line2);border-radius:8px;padding:10px 12px;font-size:14px;background:#fff;transition:border-color .15s,box-shadow .15s}
textarea:focus,input:focus{border-color:var(--bright);box-shadow:0 0 0 4px #317eff1f;outline:none}
textarea{min-height:300px;resize:vertical;line-height:1.65}

/* Header and stepper */
header{position:sticky;top:0;z-index:10;background:#ffffffeb;backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:24px;padding:12px 28px}
.brand{display:flex;align-items:center;gap:14px}.logo{display:block;height:auto}
.product{font-size:12px;color:var(--muted);white-space:nowrap}.product i{color:var(--line2);font-style:normal;margin:0 6px}
#steps{display:flex;justify-content:center;align-items:flex-start;min-width:0;isolation:isolate}
#steps button{border:0;background:none;box-shadow:none;padding:0 4px;display:flex;flex-direction:column;align-items:center;gap:5px;flex:0 1 92px;min-width:0;position:relative;color:var(--faint);font-size:11px;line-height:1.2}
#steps button::before{content:"";position:absolute;top:13px;left:-50%;width:100%;height:2px;background:var(--line);z-index:-1}
#steps button:first-child::before{display:none}
#steps button.done::before,#steps button.current::before{background:var(--bright)}
#steps .dot{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;border:2px solid var(--line2);background:#fff;font-size:11px;font-weight:600;color:var(--muted);transition:all .2s}
#steps .lbl{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}
#steps button.done .dot{background:var(--bright);border-color:var(--bright);color:#fff}
#steps button.current .dot{border-color:var(--blue);background:var(--blue);color:#fff;box-shadow:0 0 0 5px #317eff2b}
#steps button.current{color:var(--ink);font-weight:600}
#steps button.noted .dot{box-shadow:0 0 0 3px #f0b400}
#steps button:hover .dot{border-color:var(--bright)}
.tools{display:flex;gap:8px;align-items:center}
.tools a{font-size:12px;text-decoration:none;padding:0 6px;white-space:nowrap}
.tools button{padding:8px 13px;font-size:12px;white-space:nowrap}

/* Stage */
main{flex:1;width:100%;max-width:1240px;margin:0 auto;padding:40px 28px}
main.enter{animation:enter .45s cubic-bezier(.2,.7,.2,1)}
@keyframes enter{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.eyebrow{font-size:12px;color:var(--blue);letter-spacing:.2px}
h1{font-size:44px;letter-spacing:-1.4px;margin:10px 0 8px;max-width:980px}
.sub{color:var(--muted);font-size:15px;max-width:780px}
.lede{margin-bottom:28px}
.label{font-size:11px;color:var(--blue);display:block;margin-bottom:8px;letter-spacing:.4px;text-transform:uppercase;font-weight:600}
.small{font-size:12px;color:var(--muted)}
.grid{display:grid;gap:18px}.g2{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g5{grid-template-columns:repeat(5,minmax(0,1fr))}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}
.stack{display:flex;flex-direction:column;gap:16px;min-width:0}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:20px;background:#fff;box-shadow:var(--shadow);text-align:left}
.card h3{font-size:17px;margin-bottom:6px}.card p{font-size:13px;color:var(--muted)}
button.card{display:block;width:100%;font-size:15px;border-color:var(--line)}
button.card:hover{border-color:var(--bright);box-shadow:var(--shadow-lift);transform:translateY(-2px)}
.card.hot{background:linear-gradient(180deg,#f3f8ff,#fff);border-color:var(--pale2)}
.card.dark{background:var(--ink);border-color:var(--ink);color:#fff}.card.dark p{color:#c9ccd4}.card.dark .label{color:#8fb6ff}
.card.today{background:linear-gradient(135deg,#003f9b,#1d63d6);border-color:var(--blue);color:#fff;box-shadow:0 14px 34px #003f9b40}
.card.today .label,.card.today p{color:#d7e5ff}
.sim{display:inline-flex;gap:8px;align-items:center;background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:999px;padding:4px 12px;font-size:11px;color:#6b5306;margin-bottom:18px}
.sim.real{background:var(--good-bg);border-color:#bfe0c9;color:var(--good)}
.sim::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.tag{display:inline-block;font-size:11px;padding:3px 9px;border-radius:999px;background:var(--pale);color:var(--blue);border:1px solid var(--pale2);white-space:nowrap}
.tag.bad{background:var(--bad-bg);color:var(--bad);border-color:#f5c6c2}.tag.good{background:var(--good-bg);color:var(--good);border-color:#bfe0c9}
.bad{color:var(--bad)}.good{color:var(--good)}
pre{font:12.5px/1.65 var(--mono);white-space:pre-wrap;margin:0;background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:16px;color:var(--ink2)}
pre.wide{white-space:pre;overflow-x:auto}
.errors{color:var(--bad);font-size:13px;margin:4px 0;padding-left:18px}

/* Step 1: numbers strip and data browser */
.strip{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;margin-bottom:24px}
.tile{border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;background:#fff;box-shadow:var(--shadow)}
.tile .num{font-size:32px;line-height:1.1;letter-spacing:-1px;font-variant-numeric:tabular-nums}
.tile .cap{font-size:12px;color:var(--muted);margin-top:4px}
.tile.lead{background:linear-gradient(135deg,#003f9b,#1d63d6);border-color:var(--blue)}.tile.lead .num,.tile.lead .cap{color:#fff}
.browser{display:grid;grid-template-columns:250px minmax(0,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);min-height:460px;background:#fff}
.side{background:var(--soft);border-right:1px solid var(--line);padding:12px 10px;display:flex;flex-direction:column;gap:2px;max-height:580px;overflow:auto}
.side .label{padding:10px 10px 4px;margin:0}
.side button{border:0;background:none;box-shadow:none;text-align:left;border-radius:8px;padding:8px 10px;display:flex;justify-content:space-between;align-items:baseline;gap:10px;font-size:13px}
.side button small{color:var(--faint);font-size:11px;white-space:nowrap}
.side button:hover{background:#fff}
.side button.on{background:#fff;color:var(--blue);box-shadow:0 1px 3px #0b0d1214;font-weight:600}
.pane{padding:22px 24px;min-width:0;display:flex;flex-direction:column;gap:12px}
.pane h3{font-size:22px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chips button{border-radius:999px;padding:6px 13px;font-size:12px}
.chips button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.doc{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 12px 24px #0b0d1208;padding:22px 26px;font:13px/1.75 Poppins,Arial,sans-serif;white-space:pre-wrap;color:var(--ink2);max-height:380px;overflow:auto}
.doc.data{font:12px/1.7 var(--mono)}
.path{font:11px var(--mono);color:var(--faint)}

/* Step 2: hierarchy */
.tier{display:grid;grid-template-columns:56px minmax(0,1fr);gap:16px;align-items:start;position:relative;margin-bottom:20px}
.tier::before{content:"";position:absolute;left:21px;top:48px;bottom:-20px;width:2px;background:var(--line)}
.tier.last::before{display:none}
.lvl{width:44px;height:44px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:14px;font-weight:600;background:var(--soft2);color:var(--ink2);position:relative;z-index:1;line-height:1.1}
.lvl small{font-size:9px;font-weight:400;opacity:.75}
.tier.l3 .lvl{background:var(--ink);color:#fff}.tier.l1 .lvl{background:var(--blue);color:#fff}
.brief{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:14px}
.brief button{text-align:left;border-radius:10px;padding:12px 14px;background:#ffffff14;border-color:#ffffff2e;color:#fff}
.brief button:hover{border-color:#8fb6ff;background:#ffffff22}
.brief .k{font-size:10px;text-transform:uppercase;letter-spacing:.4px;color:#8fb6ff;font-weight:600;display:block;margin-bottom:2px}
.brief .v{font-size:13px}
.g5 button.card{padding:14px}.g5 button.card h3{font-size:14px}.g5 button.card p{font-size:11.5px}
.reveal>*{animation:enter .4s cubic-bezier(.2,.7,.2,1) both}
.reveal>*:nth-child(2){animation-delay:.04s}.reveal>*:nth-child(3){animation-delay:.08s}.reveal>*:nth-child(4){animation-delay:.12s}.reveal>*:nth-child(5){animation-delay:.16s}.reveal>*:nth-child(6){animation-delay:.2s}.reveal>*:nth-child(7){animation-delay:.24s}.reveal>*:nth-child(8){animation-delay:.28s}.reveal>*:nth-child(9){animation-delay:.32s}.reveal>*:nth-child(10){animation-delay:.36s}

/* Steps 3 and 4: work surfaces */
.work{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:24px;align-items:start}
.task-card{border-left:3px solid var(--blue);background:var(--pale);border-radius:0 10px 10px 0;padding:16px 18px}
.task-card p{font-size:14px}
.source h4{margin:0 0 6px;font-size:12px;font-weight:600;display:flex;gap:8px;align-items:center}
.source h4 .ref{font:11px var(--mono);background:var(--ink);color:#fff;border-radius:5px;padding:1px 6px}
table{width:100%;border-collapse:separate;border-spacing:0;font-size:13px}
th{text-align:left;font-weight:600;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.3px;padding:10px 12px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:1}
td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:0}
td.n,th.n{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
td.c,th.c{text-align:center}
.table-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#fff}
.table-card .scroll{max-height:520px;overflow:auto}
.rubric td input[type=text]{font-size:13px;padding:8px 10px}.rubric td input[type=number]{width:74px;padding:8px 10px}
.rubric td:first-child{color:var(--faint);font-variant-numeric:tabular-nums;width:36px;padding-top:19px}
.rubric td{vertical-align:middle}
button.linkish{border:0;background:none;box-shadow:none;padding:0;text-align:left;font-size:13px;color:var(--ink);line-height:1.45}
button.linkish:hover{color:var(--blue);text-decoration:underline}
.submitbar{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:16px 18px;border-top:1px solid var(--line);background:var(--soft)}
.meter{display:flex;align-items:center;gap:12px;font-size:13px;font-variant-numeric:tabular-nums}
.meter .track{width:180px}

/* Agent screen (recorded computer use) */
.screen{background:var(--night);color:var(--nightink);border-radius:14px;box-shadow:0 30px 60px #0b0d1240;overflow:hidden}
.chrome{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--night2);border-bottom:1px solid #ffffff10;font-size:12px;color:var(--nightmuted)}
.chrome i{width:11px;height:11px;border-radius:50%;background:#ff5f57}.chrome i:nth-child(2){background:#febc2e}.chrome i:nth-child(3){background:#28c840}
.chrome b{font-weight:400;margin-left:8px}
.chrome .rec{margin-left:auto;color:#ff8a80;display:flex;gap:6px;align-items:center}
.chrome .rec::before{content:"";width:8px;height:8px;border-radius:50%;background:#ff5f57;animation:blink 1.2s infinite}
@keyframes blink{50%{opacity:.25}}
.screen-body{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);min-height:340px}
.screen-body>div{padding:18px;min-width:0}
.screen-body>div+div{border-left:1px solid #ffffff10}
.screen .label{color:#8fb6ff}
.screen ol{margin:0;padding-left:20px;color:var(--nightmuted);font-size:13px}.screen li{margin-bottom:8px;animation:enter .3s ease both}.screen li:last-child{color:var(--nightink)}
.screen pre{background:var(--night3);border-color:#ffffff12;color:var(--nightink)}
.screen .peek{margin-top:12px;font-size:11px;max-height:150px;overflow:auto}
.launch{display:flex;flex-direction:column;align-items:flex-start;gap:16px;padding:28px;border:1px dashed var(--line2);border-radius:var(--radius);background:var(--soft)}

/* Step 5: model results */
.models{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:20px}
.model{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:center;text-align:left;border:1px solid var(--line);border-radius:var(--radius);padding:18px;background:#fff;box-shadow:var(--shadow)}
.model:hover{border-color:var(--bright)}
.model.on{border-color:var(--ink);box-shadow:0 0 0 2px var(--ink),var(--shadow-lift)}
.model h3{font-size:18px;margin-bottom:4px}
.model.fail{background:linear-gradient(180deg,#fff7f6,#fff)}
.ring{width:76px;height:76px;position:relative;flex:none}
.ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:8}
.ring .bg{stroke:var(--soft2)}.ring .fg{stroke:var(--good);stroke-linecap:round;animation:ring 1.1s cubic-bezier(.2,.7,.2,1) both}
.ring.fail .fg{stroke:var(--bad)}
.ring span{position:absolute;inset:0;display:grid;place-items:center;font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}
@keyframes ring{from{stroke-dasharray:0 999}}
.callout{border-radius:var(--radius);padding:16px 18px;background:var(--ink);color:#fff;font-size:14px}
.callout b{font-weight:600}
.callout.blue{background:linear-gradient(135deg,#003f9b,#1d63d6)}
.grade-row.flash td{animation:flash .7s ease}
@keyframes flash{from{background:var(--pale)}to{background:transparent}}

/* Step 6: the catch */
.gap-head{display:grid;grid-template-columns:minmax(0,1fr) 40px minmax(0,1.3fr);gap:12px;align-items:stretch;margin-bottom:22px}
.gap-head .arrow{display:grid;place-items:center;font-size:24px;color:var(--faint)}
.mark{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:50%;font-size:13px;font-weight:600}
.mark.y{background:var(--good-bg);color:var(--good)}.mark.n{background:var(--bad-bg);color:var(--bad)}

/* Steps 7 and 8: training and results */
.curve-card{border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);background:#fff}
.curve{width:100%;height:240px;display:block;overflow:visible}
.curve line{stroke:var(--soft2);stroke-width:1;vector-effect:non-scaling-stroke}
.curve polyline{fill:none;stroke:var(--bright);stroke-width:3;vector-effect:non-scaling-stroke;stroke-linejoin:round}
.curve polygon{fill:#317eff14}
.big-stat{font-size:64px;line-height:1;letter-spacing:-2.5px;font-variant-numeric:tabular-nums;color:var(--blue)}
.big-stat small{font-size:22px;letter-spacing:0;color:var(--muted)}
.bars{display:flex;flex-direction:column;gap:12px}
.bar{display:grid;grid-template-columns:130px minmax(0,1fr) 64px;gap:12px;align-items:center;font-size:13px}
.track{height:12px;background:var(--soft2);border-radius:999px;overflow:hidden;position:relative}
.track span{position:absolute;inset:0 auto 0 0;border-radius:999px;transform-origin:left;animation:grow .9s cubic-bezier(.2,.7,.2,1) both}
.track .after{background:linear-gradient(90deg,#317eff,#003f9b)}.track .before{background:#a6acb8}
@keyframes grow{from{transform:scaleX(0)}}

/* Recap */
.loop{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin:28px 0}
.loop button{padding:18px 16px;border-radius:var(--radius);text-align:left;box-shadow:var(--shadow);font-size:14px;line-height:1.35}
.loop button small{display:block;color:var(--blue);font-size:11px;font-weight:600;margin-bottom:6px}
.big{font-size:19px;line-height:1.75;max-width:900px;color:var(--ink2)}

/* Footer, overlays, comments */
footer{position:sticky;bottom:0;z-index:9;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;padding:12px 28px;border-top:1px solid var(--line);background:#ffffffeb;backdrop-filter:blur(10px);font-size:12px;color:var(--muted)}
footer #prev{justify-self:start}footer #next{justify-self:end}
#where{text-align:center}
#demo-bar{position:fixed;left:50%;bottom:76px;transform:translateX(-50%);width:min(720px,calc(100vw - 32px));z-index:12;display:grid;grid-template-columns:1fr auto;gap:8px 16px;align-items:center;background:#0b0d12f2;color:#fff;padding:12px 18px;font-size:14px;border-radius:14px;box-shadow:0 18px 40px #0b0d1240;animation:enter .3s ease}
#demo-count{font-size:12px;color:#9aa1b0;font-variant-numeric:tabular-nums}
#demo-bar[hidden]{display:none}
#demo-bar .track{grid-column:1/-1;height:3px;background:#ffffff26}
#demo-fill{transition:width .5s;background:var(--bright)!important;animation:none!important}
.demo-target{outline:3px solid var(--bright)!important;outline-offset:3px;box-shadow:0 0 0 10px #317eff2e!important}
dialog{width:min(780px,92vw);max-height:86vh;border:1px solid var(--line);border-radius:16px;padding:24px 26px;color:var(--ink);box-shadow:0 30px 80px #0b0d1240}
dialog[open]{animation:enter .25s ease}
dialog::backdrop{background:#0b0d1266;backdrop-filter:blur(3px)}
dialog h2{font-size:22px}#detail-body{margin-top:14px;font-size:14px}
#notes-panel{position:fixed;right:20px;bottom:80px;width:min(380px,calc(100vw - 40px));background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 60px #0b0d1230;padding:18px;display:flex;flex-direction:column;gap:10px;z-index:20}
#notes-panel[hidden]{display:none}#notes-panel textarea{min-height:140px}
.confirm{display:flex;gap:10px;align-items:center;justify-content:center;flex-wrap:wrap;background:var(--warn-bg);border-bottom:1px solid var(--warn-line);padding:10px 16px;font-size:13px}
.confirm[hidden]{display:none}

@media(max-width:1180px){header{grid-template-columns:auto auto}#steps{grid-column:1/-1;order:3}.product{display:none}.tools{justify-self:end}}
@media(max-width:900px){
 h1{font-size:32px}.g2,.g3,.work,.gap-head,.models,.brief{grid-template-columns:1fr}.g5{grid-template-columns:repeat(2,minmax(0,1fr))}
 .gap-head .arrow{transform:rotate(90deg)}
 .strip{grid-template-columns:repeat(2,minmax(0,1fr))}.browser{grid-template-columns:1fr}.side{max-height:220px;border-right:0;border-bottom:1px solid var(--line)}
 .screen-body{grid-template-columns:1fr}.screen-body>div+div{border-left:0;border-top:1px solid #ffffff10}
 .loop{grid-template-columns:1fr}.tier{grid-template-columns:1fr}.tier::before{display:none}
 header,main,footer{padding-left:16px;padding-right:16px}#steps .lbl{display:none}.tools a{display:none}
 .bar{grid-template-columns:96px minmax(0,1fr) 54px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
.rubric td:nth-child(2){width:100%}
.rubric td:nth-child(3){width:96px}
@media(max-width:900px){header{grid-template-columns:minmax(0,1fr) auto;gap:10px}.logo{width:110px}.tools #reset,.tools #notes-btn{display:none}#steps{overflow-x:auto;justify-content:flex-start;padding-bottom:4px}#steps button{flex:0 0 40px}#demo-bar{bottom:70px}}
@media(max-width:900px){#where{display:none}footer{grid-template-columns:auto auto;justify-content:space-between}footer button{white-space:nowrap}}

/* Real tables for spreadsheet excerpts */
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:#fff;margin-bottom:10px}
table.data{font-size:12px}
table.data th{position:static;background:var(--soft);white-space:nowrap;font-size:10.5px}
table.data td{padding:8px 10px;white-space:nowrap;max-width:340px;overflow:hidden;text-overflow:ellipsis}
table.data td:first-child{font-weight:600;color:var(--ink)}
table.data tr.hl td{background:#fff8e1}
.seg-note{font-size:12.5px;color:var(--ink2);margin:0 0 8px;line-height:1.55}
.source h4 .path{margin-left:auto;font-weight:400}
.expert{border:1px solid var(--pale2);background:linear-gradient(180deg,#f3f8ff,#fff);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:10px;min-width:0}
.answer{max-height:520px;overflow:auto}
/* Screen 2: L2 to L1 mapping */
.l2-pick{border:2px solid var(--bright)!important;background:linear-gradient(180deg,#eef5ff,#fff)!important}
.l2-pick.open{box-shadow:0 0 0 4px #317eff2b,var(--shadow-lift)!important}
.l2-count{display:block;margin-top:10px;font-size:11.5px;font-weight:600;color:var(--blue)}
.l2-other{opacity:.72}.l2-other:hover{opacity:1}
.l1-panel{border:2px solid var(--bright);border-radius:16px;padding:16px;background:linear-gradient(180deg,#f3f8ff,#fff);position:relative}
.l1-head{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:14px;font-size:12px}
.crumb{padding:4px 10px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted)}
.crumb.on{background:var(--blue);border-color:var(--blue);color:#fff}
.sep{color:var(--faint)}
tr.same td{background:#fff8e1}
.l1-title{font-size:16px;margin-bottom:8px}.l1-title b{font-weight:600;color:var(--blue)}
table.data.wrap td{white-space:normal;max-width:none}

/* Step 7: dataset and training signal */
table.ds th{position:static}
table.ds td{padding:9px 10px;font-size:12.5px}
.dim{display:inline-block;color:var(--blue)}
.signals{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.signal{display:grid;grid-template-columns:14px minmax(0,1fr);gap:10px;align-items:start;font-size:13px}
.signal b{font-weight:600}
.pip{width:10px;height:10px;border-radius:50%;background:var(--line2);margin-top:5px;transition:background .3s,box-shadow .3s}
.signals.on .pip{background:var(--bright);box-shadow:0 0 0 4px #317eff2b}
.signals.on .signal:nth-child(2) .pip{transition-delay:.15s}.signals.on .signal:nth-child(3) .pip{transition-delay:.3s}.signals.on .signal:nth-child(4) .pip{transition-delay:.45s}.signals.on .signal:nth-child(5) .pip{transition-delay:.6s}.signals.on .signal:nth-child(6) .pip{transition-delay:.75s}.signals.on .signal:nth-child(7) .pip{transition-delay:.9s}

/* L2-04 → its L1 tasks: a solid line from the card into a border that wraps the six L1 tasks */
.tier.l2.linked{margin-bottom:0}
.l2-pick.open{position:relative;z-index:2}
.l2-pick.open::after{content:"";position:absolute;left:50%;top:calc(100% + 2px);width:4px;height:42px;margin-left:-2px;background:var(--bright);border-radius:2px}
.tier.l1 .l1-panel{margin-top:44px;border-width:3px}
.tier.l1 .lvl{margin-top:44px}
.tier.l2.linked::before{bottom:-44px}
@media(max-width:900px){.l2-pick.open::after{display:none}.tier.l1 .l1-panel,.tier.l1 .lvl{margin-top:0}}
.cfg{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:0;text-transform:none;margin-top:2px;line-height:1.35}
th .cfg{white-space:normal}
.model h3 .cfg{font-size:12px}
th.c{text-transform:none;letter-spacing:0;font-size:12px;color:var(--ink)}

/* Answer table editor and invalid rubric rows */
table.data.edit td{padding:4px;white-space:normal}
table.data.edit input{border:1px solid transparent;border-radius:6px;padding:6px 8px;font-size:12.5px;min-width:96px;background:transparent}
table.data.edit input:focus{border-color:var(--bright);background:#fff}
table.data.edit input.th{font-weight:600;background:var(--soft)}
tr.bad-row td{background:#fff3f2}
tr.bad-row input{border-color:#f5c6c2}
tr.sum td{background:var(--soft);border-top:1px solid var(--line2)}
tr.sum.total td{background:var(--ink);color:#fff}tr.sum.total .bad{color:#ff9b93}
/* Phone-width fixes: grid children may shrink, long paths wrap, the dataset table drops its size column */
.grid>*{min-width:0}
.source h4{flex-wrap:wrap}
.path{overflow-wrap:anywhere}
@media(max-width:900px){table.ds .n{display:none}table.ds td,table.ds th{white-space:normal}}

/* Step 3 answer box: a small rich-text editor so tables sit inside the answer */
.editor-wrap{border:1px solid var(--line2);border-radius:10px;background:#fff;overflow:hidden}
.editor-wrap:focus-within{border-color:var(--bright);box-shadow:0 0 0 4px #317eff1f}
.editor-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:8px 10px;border-bottom:1px solid var(--line);background:var(--soft)}
.editor-tools button{padding:6px 11px;font-size:12px}
.editor{min-height:320px;max-height:640px;overflow:auto;padding:14px 16px;font-size:14px;line-height:1.65;outline:none}
.editor:empty::before{content:attr(data-ph);color:var(--faint)}
.editor table{border-collapse:collapse;margin:8px 0;font-size:12.5px;width:auto;max-width:100%}
.editor th,.editor td{border:1px solid var(--line2);padding:6px 9px;min-width:64px;vertical-align:top;text-transform:none;letter-spacing:0;position:static;font-size:12.5px;color:var(--ink)}
.editor th{background:var(--soft);font-weight:600}
.editor p{margin:0 0 8px}
.editor.read{min-height:0;max-height:none;border:1px solid var(--line);border-radius:10px}