:root { --ink:#18304d; --muted:#5c6b7f; --cream:#fff9eb; --paper:#f7f0df; --cobalt:#2f69c9; --cobalt-deep:#174791; --gold:#efb64c; --gold-deep:#a96e12; --coral:#ed6f5d; --coral-deep:#aa3e34; --teal:#2a9c98; --plum:#7459b8; --line:#d9d1bd; color-scheme:light; }
* { box-sizing:border-box; }
html,body { width:100%; height:100%; margin:0; overflow:hidden; }
body { background:#eaf3ef; color:var(--ink); font-family:Inter,ui-rounded,"Avenir Next",system-ui,sans-serif; }
button { font:inherit; }
button:focus-visible,[tabindex]:focus-visible,input:focus-visible { outline:4px solid #123d70; outline-offset:4px; }
.lab-shell { width:min(1390px,calc(100vw - 34px)); height:min(850px,calc(100vh - 24px)); margin:12px auto; display:grid; grid-template-rows:minmax(0,1fr) 176px; gap:14px; }
.studio { position:relative; min-height:0; overflow:hidden; border-radius:32px; background:linear-gradient(180deg,rgba(223,242,238,.54) 0 58%,rgba(201,155,105,.5) 58% 62%,rgba(154,104,67,.54) 62%),url("./assets/scene-plate.webp") center/cover no-repeat; box-shadow:0 20px 58px rgba(34,62,79,.16); isolation:isolate; }
.studio::before { content:""; position:absolute; inset:24px 28px 43% 28px; border-radius:25px; background:linear-gradient(90deg,rgba(255,255,255,.46),rgba(255,255,255,.18)),repeating-linear-gradient(90deg,transparent 0 145px,rgba(38,91,111,.05) 145px 148px); border:1px solid rgba(40,105,108,.14); }
.studio::after { content:""; position:absolute; left:0; right:0; bottom:0; height:38%; opacity:.23; background:repeating-linear-gradient(90deg,transparent 0 110px,#49311f 111px 114px); z-index:-1; }
.studio-glow { position:absolute; width:510px; height:510px; left:50%; top:42%; transform:translate(-50%,-50%); border-radius:50%; background:rgba(255,244,187,.46); filter:blur(35px); }
.support-panel { position:absolute; z-index:3; left:34px; top:31px; width:258px; padding:19px 20px 17px; border:1px solid rgba(24,48,77,.1); border-radius:23px; background:rgba(255,249,235,.94); box-shadow:0 11px 27px rgba(47,65,60,.12); transition:transform 150ms ease-out,box-shadow 150ms ease-out; }.support-panel.previewing{transform:translateY(-5px) scale(1.02);box-shadow:0 0 0 5px rgba(239,182,76,.45),0 15px 30px rgba(47,65,60,.18)}
.eyebrow,.mission-copy>span,.dock-label,.counterexample-card span,.stakeholder span,.condition-strip span { color:var(--cobalt-deep); font-size:11px; font-weight:950; letter-spacing:.12em; text-transform:uppercase; }
.strength-scale { position:relative; height:27px; margin:12px 0 7px; display:grid; grid-template-columns:repeat(4,1fr); gap:5px; }
.strength-scale i { border-radius:8px; background:#dce2e7; }.strength-scale i:nth-child(2){background:#c8d5e6}.strength-scale i:nth-child(3){background:#c9d8c4}.strength-scale i:nth-child(4){background:#ddcfec}
.strength-scale b { position:absolute; left:0; top:-6px; width:5px; height:39px; border-radius:5px; background:var(--ink); box-shadow:0 0 0 3px var(--cream); transition:left 180ms ease-out; }
.support-panel strong { display:block; font-size:21px; }.support-panel p { min-height:41px; margin:4px 0 7px; color:var(--muted); font-size:12px; font-weight:720; line-height:1.35; }.support-panel small { color:#776c5f; font-size:10px; font-weight:780; }
.bench-wrap { position:absolute; z-index:2; left:305px; right:34px; top:91px; bottom:42px; display:flex; align-items:center; }
.machine { position:relative; width:100%; height:258px; display:grid; grid-template-columns:minmax(180px,1fr) 68px minmax(180px,1fr) 68px minmax(205px,1.16fr) 126px; align-items:center; padding:24px 20px; border-radius:29px; background:#f9f4e8; border:8px solid #315278; box-shadow:0 13px 0 #1a385d,0 27px 40px rgba(37,44,50,.21),inset 0 0 0 4px #fffdf5; }
.dock { position:relative; height:174px; padding:12px; border-radius:22px; background:#e6ecf1; border:3px dashed #91a1b0; transition:transform 150ms ease-out,background 150ms,border 150ms; }
.dock.active { background:#fff6cd; border-color:var(--gold-deep); transform:translateY(-5px); }.dock.drop-ready { background:#e1f2ef; border-color:var(--teal); transform:translateY(-7px) scale(1.015); }.dock.pulse { animation:dock-pulse 650ms ease-out; }
.dock.evidence .module { background:var(--cobalt); box-shadow:0 8px 0 var(--cobalt-deep); }.dock.warrant .module { color:#55380c; background:var(--gold); box-shadow:0 8px 0 var(--gold-deep); }.dock.claim .module { background:var(--coral); box-shadow:0 8px 0 var(--coral-deep); }
.dock-label { display:block; margin:0 3px 7px; color:#52667b; }.module { height:124px; display:grid; grid-template-columns:34px 1fr; align-items:center; gap:10px; padding:12px 13px; border-radius:16px; color:white; }.module.empty { color:var(--muted)!important; background:#f6f7f5!important; box-shadow:none!important; }.module i { display:grid; place-items:center; width:31px; height:31px; border-radius:50%; background:rgba(255,255,255,.24); font-style:normal; font-size:10px; font-weight:950; }.module p { margin:0; font-size:13px; font-weight:880; line-height:1.25; }
.trace { position:relative; height:22px; background:#b6c1ca; overflow:hidden; transform-origin:left center; transition:transform 170ms ease-out,filter 170ms ease-out; }.trace::before,.trace::after { content:""; position:absolute; top:-6px; width:13px; height:34px; border-radius:5px; background:#315278; }.trace::before{left:0}.trace::after{right:0}.trace i { position:absolute; inset:6px 0; background:repeating-linear-gradient(90deg,var(--teal) 0 15px,transparent 15px 28px); transform:translateX(-28px); opacity:0; }.machine.testing .trace i { opacity:1; animation:trace 580ms linear infinite; }.machine.testing.band-not-connected .trace-a{transform:translateY(19px) rotate(12deg);filter:grayscale(1)}.machine.testing.band-not-connected .trace-b{transform:translateY(24px) rotate(-10deg);filter:grayscale(1)}.machine.testing.band-limited .trace-b{transform:translateY(13px) rotate(7deg);filter:saturate(.45)}.machine.testing.band-not-connected .dock.claim,.machine.testing.band-limited .dock.claim{animation:claim-rattle 520ms ease-out}.machine.testing.band-supported .dock.claim{animation:claim-lock 520ms ease-out}.machine.testing.band-qualified .dock.claim{animation:claim-lock 520ms ease-out;box-shadow:0 0 0 6px rgba(116,89,184,.22)}
.stress-handle { align-self:stretch; margin-left:15px; border:0; border-radius:20px; color:white; background:#315278; box-shadow:0 8px 0 #172f50; cursor:pointer; display:flex; flex-direction:column; justify-content:center; align-items:center; gap:10px; transition:transform 150ms; }.stress-handle:not(:disabled):hover{transform:translateY(-3px)}.stress-handle:disabled{cursor:not-allowed;opacity:.48;box-shadow:none}.stress-handle span { width:34px; height:86px; border-radius:99px; background:linear-gradient(90deg,#244668,#456d94); position:relative; }.stress-handle span::before { content:""; position:absolute; left:50%; top:-15px; width:52px; height:31px; transform:translateX(-50%); border-radius:18px; background:var(--coral); box-shadow:inset 0 -5px 0 var(--coral-deep); }.stress-handle b { max-width:80px; font-size:12px; line-height:1.05; }.machine.testing .stress-handle span { transform:translateY(22px); }
.counterexample-card { position:absolute; z-index:5; left:43%; top:-58px; width:315px; padding:12px 15px; border-radius:16px; color:white; background:var(--plum); box-shadow:0 7px 0 #4d3981; transform:rotate(-1.5deg); }.counterexample-card span{display:block;color:#ded5ff}.counterexample-card strong{display:block;margin-top:3px;font-size:12px;line-height:1.25}.condition-strip { position:absolute; z-index:4; left:27%; bottom:-24px; min-width:320px; padding:11px 17px; border-radius:14px; background:#fff5cf; box-shadow:0 5px 0 #bd8b2c; }.condition-strip span{margin-right:10px}.condition-strip strong{font-size:13px}.stakeholder { position:absolute; z-index:4; right:9px; top:-76px; width:245px; min-height:79px; display:grid; grid-template-columns:42px 1fr; gap:4px 10px; padding:13px; border-radius:18px; background:white; box-shadow:0 8px 24px rgba(27,44,69,.16); }.stakeholder div{grid-row:1/3;display:grid;place-items:center;width:42px;height:42px;border-radius:50%;color:white;background:var(--plum);font-size:25px}.stakeholder span{color:var(--plum)}.stakeholder strong{font-size:11px;line-height:1.25}
.test-stamp { position:absolute; z-index:7; left:50%; top:43%; padding:13px 19px; border:5px double var(--teal); border-radius:10px; color:var(--teal); font-weight:1000; letter-spacing:.08em; opacity:0; transform:translate(-50%,-50%) rotate(-7deg) scale(1.4); pointer-events:none; }.test-stamp.show{animation:stamp 750ms ease-out}.celebration{position:absolute;inset:0;pointer-events:none;z-index:8}.celebration i{position:absolute;left:50%;top:50%;width:9px;height:18px;border-radius:4px;opacity:0}.celebration.on i{animation:confetti 850ms ease-out forwards}
.action-tray { min-width:0; display:grid; grid-template-columns:minmax(340px,.85fr) minmax(620px,1.65fr); align-items:center; gap:28px; padding:20px 27px; border-radius:27px; background:var(--cream); box-shadow:0 12px 36px rgba(33,55,67,.12); }.mission-copy h1{margin:5px 0 4px;max-width:510px;font-size:clamp(23px,2vw,31px);line-height:1.04;letter-spacing:-.035em}.mission-copy p{margin:0;color:var(--muted);font-size:13px;font-weight:720}.controls{min-width:0;display:flex;justify-content:flex-end;align-items:center;gap:11px}.piece-card,.choice,.primary { min-height:60px;border:0;border-radius:17px;cursor:pointer;transition:transform 140ms ease-out,box-shadow 140ms ease-out}.piece-card:hover,.choice:hover,.primary:hover{transform:translateY(-3px)}.piece-card:active,.choice:active,.primary:active{transform:translateY(1px) scale(.98)}.piece-card{width:190px;padding:10px 13px;color:var(--ink);background:#e8eef4;border:2px solid transparent;text-align:left;font-size:12px;font-weight:850;line-height:1.2}.piece-card b{display:block;margin-bottom:3px;color:var(--cobalt-deep);font-size:10px;letter-spacing:.1em;text-transform:uppercase}.piece-card.dragging{opacity:.55}.choice{max-width:240px;padding:11px 15px;color:var(--ink);background:#edf1ee;font-size:12px;font-weight:850}.primary{min-width:190px;padding:14px 22px;color:white;background:var(--cobalt);box-shadow:0 7px 0 var(--cobalt-deep);font-size:15px;font-weight:950}.primary.coral{background:var(--coral);box-shadow:0 7px 0 var(--coral-deep)}.feedback{max-width:340px;color:var(--muted);font-size:13px;font-weight:740;line-height:1.35}.feedback strong{display:block;color:var(--ink);font-size:18px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@keyframes trace{to{transform:translateX(0)}}@keyframes stamp{20%{opacity:1;transform:translate(-50%,-50%) rotate(-7deg) scale(.92)}72%{opacity:1}100%{opacity:0;transform:translate(-50%,-58%) rotate(-7deg) scale(1)}}@keyframes dock-pulse{35%{transform:translateY(-6px) scale(1.025);filter:brightness(1.08)}100%{transform:none}}@keyframes claim-rattle{30%{transform:translateY(19px) rotate(3deg)}65%{transform:translateY(9px) rotate(-2deg)}}@keyframes claim-lock{45%{transform:translateY(-10px) scale(1.025);filter:brightness(1.08)}}@keyframes confetti{15%{opacity:1}100%{opacity:0;transform:rotate(var(--angle)) translateY(-180px) rotate(190deg)}}
@media(max-width:1150px){.support-panel{width:220px}.bench-wrap{left:260px}.machine{grid-template-columns:minmax(145px,1fr) 40px minmax(145px,1fr) 40px minmax(175px,1.1fr) 108px;padding:18px 14px}.dock{height:198px;padding:9px}.module{height:154px;grid-template-columns:1fr;gap:0;padding:10px;overflow:hidden}.module i{display:none}.module p{font-size:10.5px;line-height:1.16;text-align:center;overflow-wrap:anywhere}.piece-card{width:170px}.action-tray{grid-template-columns:330px 1fr}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important;scroll-behavior:auto!important}}