:root{
  --bg:#071218;--panel:#0d2029;--panel2:#102a35;--text:#edf7f7;--muted:#9db4bb;
  --line:#1d3a45;--accent:#46d7c8;--accent2:#8be9de;--warn:#ffc86b;--danger:#ff7b7b;
  --good:#79e0a5;--shadow:0 18px 50px rgba(0,0,0,.24);--radius:22px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at 80% 0,#123542 0,transparent 35%),var(--bg);color:var(--text);min-height:100vh}
a{color:inherit}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.topbar{position:sticky;top:0;z-index:20;background:rgba(7,18,24,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.topbar-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:linear-gradient(145deg,var(--accent),#3b8dff);font-weight:900;color:#042026;box-shadow:0 8px 24px rgba(70,215,200,.18)}.brand h1{font-size:1.08rem;margin:0}.brand p{margin:2px 0 0;color:var(--muted);font-size:.82rem}.nav-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.btn,.chip,button{font:inherit}.btn{border:1px solid var(--line);background:var(--panel);color:var(--text);padding:10px 14px;border-radius:12px;text-decoration:none;cursor:pointer;transition:.2s}.btn:hover{transform:translateY(-1px);border-color:#35606d}.btn.primary{background:var(--accent);color:#03211e;border-color:transparent;font-weight:800}.btn.warn{background:rgba(255,200,107,.1);border-color:rgba(255,200,107,.35)}.btn.good{background:rgba(121,224,165,.1);border-color:rgba(121,224,165,.35)}.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}.hero{padding:56px 0 32px}.kicker{text-transform:uppercase;letter-spacing:.13em;color:var(--accent2);font-size:.75rem;font-weight:900}.hero h2{font-size:clamp(2.2rem,5vw,4.8rem);line-height:.98;letter-spacing:-.05em;margin:10px 0 18px;max-width:900px}.hero p{font-size:1.12rem;line-height:1.65;color:var(--muted);max-width:860px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.grid{display:grid;gap:18px}.grid.cards{grid-template-columns:repeat(auto-fit,minmax(245px,1fr));padding:18px 0 50px}.card,.panel{background:linear-gradient(180deg,rgba(16,42,53,.94),rgba(13,32,41,.96));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.card{padding:22px;display:flex;flex-direction:column;min-height:280px;position:relative;overflow:hidden}.card:before{content:"";position:absolute;width:130px;height:130px;border-radius:50%;background:rgba(70,215,200,.06);right:-55px;top:-55px}.card-icon{font-size:2rem}.card h3{margin:14px 0 7px;font-size:1.2rem}.card p{color:var(--muted);line-height:1.55;margin:0 0 18px}.card .meta{display:flex;gap:8px;flex-wrap:wrap;margin:auto 0 18px}.pill{font-size:.76rem;color:#c7d8dc;border:1px solid var(--line);padding:5px 8px;border-radius:999px}.card .btn{align-self:flex-start}.progress{height:8px;border-radius:99px;background:#071820;overflow:hidden;border:1px solid var(--line)}.progress>span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),#6aa8ff);transition:.4s}.section{padding:34px 0}.section h2{font-size:clamp(1.7rem,3vw,2.5rem);margin:0 0 10px}.section-lead{color:var(--muted);line-height:1.6;max-width:850px}.panel{padding:22px}.lab-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.7fr);gap:18px}.stack{display:grid;gap:14px}.field label{display:block;font-size:.82rem;color:var(--muted);font-weight:700;margin-bottom:7px}.field textarea,.field input,.field select,textarea,input,select{width:100%;background:#071820;color:var(--text);border:1px solid var(--line);border-radius:12px;padding:12px 13px;outline:none}.field textarea:focus,.field input:focus,.field select:focus{border-color:var(--accent)}.segmented{display:flex;gap:6px;flex-wrap:wrap}.segmented button,.choice{border:1px solid var(--line);background:#0a1a22;color:var(--text);padding:9px 11px;border-radius:11px;cursor:pointer}.segmented button.active,.choice.active{background:rgba(70,215,200,.16);border-color:var(--accent)}.score-big{font-size:3rem;font-weight:900;letter-spacing:-.05em}.muted{color:var(--muted)}.small{font-size:.82rem}.callout{border-left:4px solid var(--accent);background:rgba(70,215,200,.07);padding:13px 15px;border-radius:10px;line-height:1.55}.callout.warn{border-left-color:var(--warn);background:rgba(255,200,107,.07)}.callout.danger{border-left-color:var(--danger);background:rgba(255,123,123,.07)}.callout.good{border-left-color:var(--good);background:rgba(121,224,165,.07)}.token-row{display:flex;gap:7px;flex-wrap:wrap}.token{padding:8px 10px;border:1px solid var(--line);background:#091b23;border-radius:9px;cursor:pointer}.token.active{border-color:var(--accent);background:rgba(70,215,200,.16);box-shadow:0 0 0 2px rgba(70,215,200,.08)}.bars{display:grid;gap:8px}.bar{display:grid;grid-template-columns:105px 1fr 52px;align-items:center;gap:9px}.bar-track{height:10px;background:#071820;border-radius:99px;overflow:hidden;border:1px solid var(--line)}.bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),#6aa8ff);border-radius:99px}.table-wrap{overflow:auto}.matrix{border-collapse:separate;border-spacing:4px;font-size:.75rem}.matrix th{color:var(--muted);font-weight:600;padding:5px}.matrix td{min-width:38px;height:34px;text-align:center;border-radius:7px;background:rgba(70,215,200,var(--a,.08));border:1px solid rgba(70,215,200,.12)}.quiz-list{display:grid;gap:12px}.quiz-item{border:1px solid var(--line);border-radius:14px;padding:14px}.quiz-item strong{display:block;margin-bottom:9px}.options{display:flex;gap:7px;flex-wrap:wrap}.options button{border:1px solid var(--line);background:#071820;color:var(--text);padding:8px 10px;border-radius:10px;cursor:pointer}.options button.selected{border-color:var(--accent);background:rgba(70,215,200,.12)}.options button.correct{border-color:var(--good);background:rgba(121,224,165,.12)}.options button.wrong{border-color:var(--danger);background:rgba(255,123,123,.1)}.step-list{counter-reset:step;display:grid;gap:9px}.step{position:relative;padding:13px 14px 13px 52px;border:1px solid var(--line);border-radius:13px;background:#091a22;cursor:pointer}.step:before{counter-increment:step;content:counter(step);position:absolute;left:13px;top:10px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:#12313d;color:var(--accent2);font-weight:800}.step.selected{border-color:var(--accent)}.step.correct{border-color:var(--good);background:rgba(121,224,165,.07)}.step.wrong{border-color:var(--danger);background:rgba(255,123,123,.07)}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{padding:14px;border:1px solid var(--line);border-radius:14px;background:#091a22}.stat strong{display:block;font-size:1.35rem}.source-card{border:1px solid var(--line);border-radius:14px;padding:14px;background:#091a22}.source-card h4{margin:0 0 7px}.source-card p{margin:0 0 12px;color:var(--muted);line-height:1.5}.footer{border-top:1px solid var(--line);margin-top:50px;padding:24px 0 38px;color:var(--muted);font-size:.85rem}.completion{display:none;margin-top:12px}.completion.show{display:block}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tag{display:inline-block;font-size:.72rem;border-radius:999px;padding:4px 8px;background:rgba(70,215,200,.1);color:var(--accent2);border:1px solid rgba(70,215,200,.25)}.range-line{display:grid;grid-template-columns:1fr 70px;gap:10px;align-items:center}.meter{height:14px;background:#071820;border:1px solid var(--line);border-radius:99px;overflow:hidden}.meter span{height:100%;display:block;background:linear-gradient(90deg,#5c8cff,var(--accent),var(--warn));width:50%}.hidden{display:none!important}
@media(max-width:850px){.lab-grid,.two-col,.three-col{grid-template-columns:1fr}.topbar-inner{align-items:flex-start;padding:12px 0}.nav-actions{justify-content:flex-end}.stat-grid{grid-template-columns:1fr}.bar{grid-template-columns:80px 1fr 42px}.hero{padding-top:36px}}
@media(max-width:560px){.wrap{width:min(100% - 20px,1180px)}.brand p{display:none}.nav-actions .hide-mobile{display:none}.hero h2{font-size:2.35rem}.card{min-height:250px}}

/* v2 — didactic guidance */
.lab-how{margin-top:-10px}.lab-how h3{margin:6px 0 12px;font-size:1.35rem}.guide-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin-top:14px}.guide-step{position:relative;border:1px solid var(--line);border-radius:14px;padding:14px;background:#091a22;min-height:120px}.guide-step .num{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:rgba(70,215,200,.14);color:var(--accent2);font-weight:900;margin-bottom:9px}.guide-step strong{display:block;margin-bottom:5px}.guide-step p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.45}.learning-goals{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.learning-goal{border:1px solid rgba(70,215,200,.25);background:rgba(70,215,200,.07);border-radius:999px;padding:7px 10px;font-size:.78rem;color:#d7f7f2}.case-progress{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 11px;border:1px solid var(--line);border-radius:12px;background:#081921;color:var(--muted);font-size:.82rem;margin:12px 0}.case-progress strong{color:var(--text)}.concept-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}.concept-card{border:1px solid var(--line);border-radius:14px;padding:13px;background:#091a22}.concept-card strong{display:block;margin-bottom:6px}.concept-card p{margin:0;color:var(--muted);font-size:.86rem;line-height:1.45}.reflection-box{border:1px dashed #35606d;border-radius:14px;padding:14px;background:rgba(106,168,255,.05)}.reflection-box h4{margin:0 0 7px}.reflection-box p{margin:0;color:var(--muted);line-height:1.5}.lesson-stepper{display:flex;gap:7px;flex-wrap:wrap;margin:12px 0 16px}.lesson-step{border:1px solid var(--line);border-radius:999px;padding:7px 10px;background:#091a22;color:var(--muted);font-size:.78rem;font-weight:700}.lesson-step.active{border-color:var(--accent);background:rgba(70,215,200,.12);color:var(--text)}.explain-panel{border:1px solid var(--line);border-radius:14px;padding:14px;background:#091a22;line-height:1.55}.explain-panel strong{color:var(--accent2)}.checklist{display:grid;gap:9px}.check-item{display:flex;gap:9px;align-items:flex-start}.check-dot{flex:0 0 auto;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:#12313d;color:var(--accent2);font-size:.72rem;font-weight:900;margin-top:1px}.badge{display:inline-flex;align-items:center;gap:5px;border:1px solid var(--line);border-radius:999px;padding:5px 8px;font-size:.72rem;color:var(--muted)}.insight{padding:12px 13px;border-radius:12px;background:rgba(106,168,255,.08);border-left:4px solid #6aa8ff;line-height:1.5}.mini-note{font-size:.78rem;color:var(--muted);line-height:1.45}.case-done{color:var(--good);font-weight:800}.case-open{color:var(--warn);font-weight:800}.guided-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.guided-actions .btn{min-width:170px}.split-note{display:grid;grid-template-columns:1fr 1fr;gap:10px}.sticky-side{position:sticky;top:92px;align-self:start}
@media(max-width:850px){.sticky-side{position:static}.split-note{grid-template-columns:1fr}.guide-step{min-height:0}}


/* v3 — layout robustness and AI-literacy additions */
.lab-grid{grid-template-columns:minmax(0,1fr) minmax(320px,370px);align-items:start}
.lab-grid>*,.lab-grid>.stack,.sticky-side{min-width:0;max-width:100%}
.sticky-side{width:100%;overflow:visible}
.panel,.concept-card,.source-card,.guide-step,.callout,.insight{overflow-wrap:anywhere}
.lesson-stepper{max-width:100%}
.lesson-step{white-space:normal;text-align:center}
.table-wrap{max-width:100%;overscroll-behavior-inline:contain}
.mission-card{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(240px,.7fr);gap:14px;align-items:stretch}
.mission-main,.mission-side{border:1px solid var(--line);border-radius:15px;padding:15px;background:#091a22}
.mission-main h3,.mission-side h3{margin:4px 0 8px}
.mission-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px;margin-top:12px}
.mission-chip{border:1px solid var(--line);border-radius:12px;padding:10px;background:#071820}
.mission-chip strong{display:block;font-size:.76rem;color:var(--accent2);margin-bottom:4px;text-transform:uppercase;letter-spacing:.05em}
.variable-zone{border:1px solid var(--line);border-radius:15px;padding:15px;background:#091a22}
.variable-zone.suspect{border-color:rgba(255,200,107,.4);background:rgba(255,200,107,.04)}
.variable-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.variable-title h3{margin:0;font-size:1rem}
.variable-badge{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:5px 8px;font-size:.72rem;color:var(--muted)}
.variable-zone.suspect .variable-badge{border-color:rgba(255,200,107,.4);color:var(--warn)}
.slider-card{border-top:1px solid var(--line);padding-top:12px;margin-top:12px}
.slider-card:first-of-type{border-top:0;padding-top:0;margin-top:0}
.slider-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:7px}
.slider-head strong{font-size:.92rem}
.slider-value{font-weight:900;color:var(--accent2);font-variant-numeric:tabular-nums}
.slider-help{font-size:.78rem;color:var(--muted);line-height:1.4;margin-top:5px}
.score-breakdown{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:14px}
.score-part{border:1px solid var(--line);border-radius:13px;padding:12px;background:#071820}
.score-part span{display:block;color:var(--muted);font-size:.74rem;margin-bottom:4px}
.score-part strong{font-size:1.25rem;font-variant-numeric:tabular-nums}
.score-part.warn strong{color:var(--warn)}
.score-part.good strong{color:var(--good)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.compare-card{border:1px solid var(--line);border-radius:15px;padding:15px;background:#091a22}
.compare-card.active{border-color:var(--accent);box-shadow:0 0 0 2px rgba(70,215,200,.06)}
.compare-card h4{margin:0 0 6px}
.compare-score{font-size:2.2rem;font-weight:900;letter-spacing:-.04em;margin:8px 0 3px;font-variant-numeric:tabular-nums}
.compare-decision{font-weight:800}
.bias-map{display:grid;gap:9px}
.bias-map-item{border:1px solid var(--line);border-radius:13px;padding:11px;background:#091a22;cursor:pointer;transition:.15s}
.bias-map-item:hover{border-color:#35606d}
.bias-map-item strong{display:flex;justify-content:space-between;gap:8px;margin-bottom:4px}
.bias-map-item p{margin:0;color:var(--muted);font-size:.8rem;line-height:1.4}
.bias-map-item.active{border-color:var(--accent);background:rgba(70,215,200,.08)}
.bias-map-item .mini-tag{font-size:.68rem;color:var(--accent2);font-weight:700}
.takeaway{border:1px solid rgba(106,168,255,.3);border-radius:14px;padding:14px;background:rgba(106,168,255,.06);line-height:1.55}
.takeaway strong{color:#9fc2ff}
.track-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.track-card{border:1px solid var(--line);border-radius:15px;padding:16px;background:#091a22}
.track-card h3{margin:6px 0 7px}
.track-card p{margin:0 0 12px;color:var(--muted);line-height:1.5}
.track-list{display:grid;gap:6px;font-size:.84rem;color:#dce9ec}
.track-list span{display:flex;gap:7px;align-items:flex-start}
.glossary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.glossary-item{border:1px solid var(--line);border-radius:13px;padding:12px;background:#091a22}
.glossary-item strong{color:var(--accent2)}
.glossary-item p{margin:5px 0 0;color:var(--muted);font-size:.83rem;line-height:1.45}
.scenario-step-nav{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.scenario-step-nav .btn{min-width:0}
@media(max-width:1100px){.lab-grid{grid-template-columns:1fr}.sticky-side{position:static;top:auto}.mission-card{grid-template-columns:1fr}}
@media(max-width:820px){.mission-grid,.score-breakdown,.track-grid{grid-template-columns:1fr}.compare-grid{grid-template-columns:1fr}}

#counterPanel,#diagnosisPanel{scroll-margin-top:105px}

#stressPanel{scroll-margin-top:105px}

.quiz-list .choice{text-align:left;width:100%;line-height:1.45}

/* v4 — BiasLab redesigned for clarity */
.bias-simple-shell{display:grid;gap:16px;max-width:1000px}
.bias-toolbar{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;align-items:end}
.bias-toolbar .case-progress{margin:0;min-width:220px}
.bias-stage{scroll-margin-top:100px}
.bias-stagebar{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin-top:14px}
.bias-stagebar span{border:1px solid var(--line);border-radius:999px;padding:8px 9px;text-align:center;color:var(--muted);font-size:.77rem;font-weight:800;background:#091a22}
.bias-stagebar span.active{border-color:var(--accent);background:rgba(70,215,200,.13);color:var(--text)}
.bias-stagebar span.done{border-color:rgba(121,224,165,.35);color:var(--good)}
.bias-decision-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.bias-decision-card{border:1px solid var(--line);border-radius:15px;padding:15px;background:#091a22}
.bias-decision-card span{display:block;color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}
.bias-decision-card strong{line-height:1.45}
.bias-variable-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.bias-variable-card{position:relative;border:1px solid var(--line);border-radius:14px;padding:14px 14px 14px 48px;background:#091a22;min-height:105px}
.bias-variable-card>span{position:absolute;left:13px;top:13px;width:25px;height:25px;border-radius:50%;display:grid;place-items:center;background:#12313d;color:var(--accent2);font-weight:900;font-size:.78rem}
.bias-variable-card strong{display:block;margin-bottom:5px}.bias-variable-card p{margin:0;color:var(--muted);font-size:.84rem;line-height:1.45}
.bias-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px}
.bias-choice-card{display:flex;align-items:flex-start;gap:11px;text-align:left;border:1px solid var(--line);border-radius:14px;background:#091a22;color:var(--text);padding:14px;cursor:pointer;transition:.15s;min-height:98px}
.bias-choice-card:hover{border-color:#35606d;transform:translateY(-1px)}
.bias-choice-card .choice-num{flex:0 0 28px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#12313d;color:var(--accent2);font-weight:900}
.bias-choice-card strong{display:block;line-height:1.4}.bias-choice-card small{display:block;color:var(--muted);line-height:1.45;margin-top:5px}
.bias-choice-card.selected{border-color:var(--accent)}.bias-choice-card.correct{border-color:var(--good);background:rgba(121,224,165,.08)}.bias-choice-card.wrong{border-color:var(--danger);background:rgba(255,123,123,.07)}
.twin-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.twin-card{border:1px solid var(--line);border-radius:16px;padding:16px;background:#091a22}.twin-card h3{margin:5px 0 7px}.twin-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--accent2);font-weight:900}.twin-change{border-top:1px solid var(--line);margin-top:12px;padding-top:12px;line-height:1.45}.twin-result{margin-top:14px;border-radius:13px;padding:13px;background:#071820;border:1px solid var(--line);font-weight:800}.twin-score{font-size:2.4rem;letter-spacing:-.05em;line-height:1;margin-bottom:5px}
.bias-diagnosis-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;margin-top:16px}.bias-diagnosis-card{border:1px solid var(--line);border-radius:14px;padding:14px;background:#091a22;color:var(--text);cursor:pointer;text-align:left;min-height:150px}.bias-diagnosis-card>span{font-size:1.5rem;display:block;margin-bottom:8px}.bias-diagnosis-card strong{display:block;margin-bottom:6px}.bias-diagnosis-card small{display:block;color:var(--muted);line-height:1.4}.bias-diagnosis-card.selected{border-color:var(--accent)}.bias-diagnosis-card.correct{border-color:var(--good);background:rgba(121,224,165,.08)}.bias-diagnosis-card.wrong{border-color:var(--danger);background:rgba(255,123,123,.07)}
.bias-glossary-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.ai-disclosure{border:1px solid rgba(106,168,255,.32);background:rgba(106,168,255,.06);border-radius:16px;padding:16px;line-height:1.6}.ai-disclosure strong{color:#bcd2ff}
@media(max-width:900px){.bias-toolbar,.bias-decision-grid,.bias-variable-grid,.bias-choice-grid,.twin-grid{grid-template-columns:1fr}.bias-toolbar .case-progress{min-width:0}.bias-stagebar{grid-template-columns:1fr 1fr}.bias-glossary-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.bias-stagebar,.bias-glossary-grid{grid-template-columns:1fr}.bias-choice-card{min-height:0}}

/* v5 — disclosure footer: improved readability for the full transparency statement */
.footer .wrap {
  line-height: 1.55;
  text-wrap: pretty;
}