:root{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#dbe5e2;background:#12232a;font-synthesis:none;--ink:#13262d;--muted:#839a9f;--line:#34464c;--orange:#efad73;--green:#a6dfad;--panel:#1a2e35;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,select,input{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);background:transparent;color:inherit;border-radius:5px;padding:9px 12px;font-size:12px;font-weight:600}button:hover{border-color:#91a7a9;background:#ffffff07}button:disabled{opacity:.42;cursor:not-allowed}button:focus-visible,select:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid var(--orange);outline-offset:3px}button.primary{background:var(--orange);color:#243035;border-color:var(--orange)}button.primary:hover{background:#ffc18b}button.quiet{border:0;font-weight:500;color:#afc1c1}.large{padding:15px 19px;font-size:13px}select{background:#14272f;color:#d4e3df;border:1px solid #3a5058;border-radius:4px;padding:8px;width:100%;font-size:12px}select:disabled{opacity:.55}a{color:inherit;text-decoration:none}[hidden]{display:none!important}.masthead{height:76px;border-bottom:1px solid #33434a;display:flex;align-items:center;padding:0 4.5%;gap:45px;background:#12232a}.brand{display:flex;gap:10px;align-items:center;font-size:14px;letter-spacing:2px;line-height:1.4;font-weight:750}.brand-light{display:block;font-weight:450;font-size:10px;letter-spacing:3px;color:#a9bdbe}.brand svg{height:35px;width:35px;fill:#12232a;stroke:var(--orange);stroke-width:1.8}.edition{color:#7e999e;font:9px var(--mono);letter-spacing:2px;text-transform:uppercase}.masthead nav{margin-left:auto;display:flex;gap:22px;align-items:center}.orange-dot,#sceneStatus i{display:inline-block;width:5px;height:5px;border-radius:50%;background:#91caa5;margin-right:6px}.orange-dot{background:var(--orange)}.eyebrow{font:9px var(--mono);font-weight:500;letter-spacing:1.7px;color:#9eb2b5}.hero{max-width:1370px;margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:8%;padding:68px 4.5% 56px}.hero h1{font-size:clamp(64px,7.4vw,104px);line-height:.98;letter-spacing:-.045em;font-weight:550;margin:24px 0 28px}.hero h1 em{font-style:normal;color:var(--orange)}.hero p{font-size:15px;color:#9bb0b3;line-height:1.9}.hero-actions{display:flex;align-items:center;gap:20px;margin-top:29px}.hero-stats{margin-top:36px;display:flex;gap:25px;font-size:10px;color:#8da5a8}.hero-stats strong{color:#cbded7;font-family:var(--mono);font-size:17px;display:block;margin-bottom:7px;font-weight:400}.hero-illustration{align-self:center;border:1px solid #3c5156;padding:18px;border-radius:9px;background:linear-gradient(130deg,#1b333c,#17282e);box-shadow:0 24px 50px #07141960;transform:rotate(-2deg)}.drawing-label,.drawing-footer{display:flex;justify-content:space-between;font:8px var(--mono);letter-spacing:1.6px;color:#b1c5c1}.drawing-label span{color:var(--orange)}.hero-illustration svg{width:100%;margin:24px 0}.drawing-footer{font-size:8px;letter-spacing:1.2px;color:#8ba5ab;text-transform:uppercase;gap:16px}.case-section{max-width:1370px;margin:auto;padding:26px 4.5% 65px;border-top:1px solid #31464d}.section-heading,.case-tools{display:flex;justify-content:space-between;align-items:center;gap:20px}.section-heading h2{font-size:27px;font-weight:500;letter-spacing:-.8px;margin:10px 0}.case-tools{margin:10px 0 18px}.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.case-card{text-align:left;display:flex;flex-direction:column;border:1px solid #334b52;border-radius:7px;padding:20px;min-height:200px;background:#1a2e36;transition:transform .2s,border-color .2s}.case-card:hover{transform:translateY(-3px);border-color:#c0926a;background:#20363e}.card-number{font:10px var(--mono);color:#708c94;letter-spacing:1px}.component-icons{display:flex;flex-wrap:wrap;gap:6px;color:#d9af81;width:100%;margin:4px 0 0}.component-icon{width:var(--component-icon-size);height:var(--component-icon-size);flex-shrink:0;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.case-card h3{font-size:21px;font-weight:550;line-height:1.25;margin:16px 0 14px;letter-spacing:-.4px;overflow-wrap:anywhere}.card-bottom{margin-top:auto;padding-top:20px;display:flex;justify-content:space-between;align-items:center;font:9px var(--mono);color:#a5beb8}.lobby-footer{padding:23px 4.5%;border-top:1px solid #31464d;display:flex;justify-content:space-between;font:10px var(--mono);color:#759199;gap:20px}.lobby-footer span:first-child{color:#acc1ba;letter-spacing:1.6px;text-transform:uppercase}.case-bar{display:flex;align-items:center;padding:16px 25px;justify-content:space-between;border-bottom:1px solid #34494f;gap:15px;height:89px}.case-title .eyebrow{display:flex;gap:15px;font-size:9px}.case-title h1{font-size:21px;font-weight:500;letter-spacing:-.5px;margin:8px 0 0}.score-strip{display:flex;gap:28px}.score-strip>div{min-width:91px;display:grid;grid-template-columns:auto 1fr;align-items:baseline;column-gap:7px}.score-strip span{grid-column:span 2;color:#8ba5ab;font:8px var(--mono);letter-spacing:1px;margin-bottom:4px}.score-strip strong{font:24px var(--mono);font-weight:400}.score-strip small{font:9px var(--mono);color:#7e979c}.score-strip .score{border-left:1px solid #3c5056;padding-left:25px;color:var(--orange)}.lab-layout{display:grid;grid-template-columns:minmax(0,1fr) 305px;height:calc(100dvh - 165px);min-height:650px}.lab-main{min-width:0;display:grid;grid-template-rows:minmax(320px,1fr) 298px}.bench{position:relative;display:flex;flex-direction:column;min-height:0}.bench-toolbar{height:43px;display:flex;align-items:center;justify-content:space-between;padding:0 15px;border-bottom:1px solid #a9bbb5;background:#dae2d9;color:#334c47}.bench-toolbar .eyebrow{color:#617a70}.lock-label{margin-left:17px;font-size:8px;color:#819285}.bench-toolbar button{font-size:10px;border:0;color:#506b61;padding:5px 9px}.bench-toolbar button.active{background:#bccdc1;color:#193f30}.toolbar-line{display:inline-block;width:1px;height:13px;background:#9fb1a7;vertical-align:middle;margin:0 5px}#scene{position:relative;flex:1;background:#dbe5db;min-height:0;overflow:hidden}#threeScene,#diagram{position:absolute;inset:0}#threeScene canvas{display:block}#sceneHint{position:absolute;bottom:12px;left:15px;font:8px var(--mono);color:#617c70;pointer-events:none;max-width:85%;line-height:1.5}#sceneStatus{position:absolute;top:12px;left:15px;font:8px var(--mono);color:#608675;letter-spacing:1px;pointer-events:none}#sceneStatus i{width:4px;height:4px}.selection-bar{height:51px;display:flex;align-items:center;justify-content:space-between;padding:7px 15px;background:#dde6db;color:#3f5f4f;border-top:1px solid #bacbbd;font:11px var(--mono)}.selection-bar button{font-size:11px;background:#244f44;color:#e4eddb;border-color:#244f44}.selection-bar button:hover{background:#306654}.scope-panel{background:#12242c;padding:14px 17px 10px;min-height:0;display:flex;flex-direction:column;border-top:1px solid #344d55}.scope-heading{display:flex;justify-content:space-between;align-items:center}.scope-heading .eyebrow{font-size:7px;letter-spacing:1.2px;color:#6f8f98}.scope-heading h2{font-size:14px;font-weight:500;margin:3px 0 0}.scope-heading h2 span{font:7px var(--mono);color:#738992;letter-spacing:1px;margin-left:11px}.scope-heading h2 span.on{color:var(--green)}.power-switch{display:flex;align-items:center;gap:10px;background:#203740;padding:7px 11px;min-width:103px;justify-content:space-between}.power-switch strong{font:11px var(--mono);letter-spacing:1px}.power-track{width:33px;height:17px;border-radius:9px;background:#091c24;padding:3px}.power-track i{display:block;width:11px;height:11px;border-radius:50%;background:#708b95;transition:transform .2s}.power-switch[aria-checked=true]{background:#224039;border-color:#578a63;color:#bcecaa}.power-switch[aria-checked=true] i{transform:translateX(16px);background:#bcecaa}.scope-controls{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:10px;align-items:end;margin:10px 0}.scope-controls label>span{display:block;font:7px var(--mono);letter-spacing:1px;color:#82a1a8;margin-bottom:4px}.scope-controls small{font-size:6px;opacity:.7;margin-left:5px}.scope-controls select{font-size:10px;padding:5px 7px}.scope-controls button{font-size:9px;padding:7px 9px}.scope-display{position:relative;display:flex;flex:1;min-height:90px;border:1px solid #2b4851;border-radius:5px;overflow:hidden;background:#0d1e25}#scope{width:calc(100% - 134px);height:100%}#scopeEmpty{position:absolute;inset:0 134px 0 0;display:flex;align-items:center;justify-content:center;gap:14px;color:#8ba5aa;font:11px var(--mono);background:#0d1e25ed}#scopeEmpty>span{font-size:30px;color:#4a6e73}#scopeEmpty small{font-size:8px;display:block;color:#64828b;margin-top:8px;max-width:280px;line-height:1.5}.scope-readouts{width:134px;border-left:1px solid #2b4851;padding:7px 12px;display:flex;flex-direction:column;justify-content:space-around}.scope-readouts span{font:6px var(--mono);letter-spacing:1px;color:#6f939e;display:block;margin-bottom:3px}.scope-readouts strong{font:15px var(--mono);color:#a6dfad;white-space:nowrap}.scope-readouts>div:nth-child(2) strong{color:#e8b58b}.scope-readouts>div:last-child strong{font-size:11px;color:#b7cbd0}.scope-footer{display:flex;align-items:center;gap:10px;padding-top:8px;font:8px var(--mono);color:#78959e;min-height:27px}.scope-footer button{border:0;padding:0;font-size:12px}.scope-footer input{height:3px;accent-color:#9acaaf;flex:1;max-width:300px}.scope-footer>span:last-child{margin-left:auto;font-size:7px}.inspector{border-left:1px solid #364c54;background:#192e36;overflow-y:auto;min-height:0}.inspector>section{padding:21px 20px;border-bottom:1px solid #334a52}.aside-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.aside-heading h2{font-size:12px;font-weight:600;margin:0}.aside-heading>span{font:7px var(--mono);letter-spacing:.6px;color:#6d909a}.code-badge{display:flex;align-items:center;gap:6px;font:9px var(--mono);color:#a4c9ba}.code-badge button{font-size:9px;margin-left:auto;padding:5px}.environment-control{margin-bottom:17px}.environment-control:last-child{margin-bottom:0}.control-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:9px;font-size:10px;color:#9cb7be}.control-label strong{font:10px var(--mono);color:#d9e4d8;font-weight:400}.environment-control input{width:100%;accent-color:#e8b080;height:4px}.control-ticks{display:flex;justify-content:space-between;font:7px var(--mono);color:#698e98;margin-top:7px}.switch-options{display:flex;gap:6px}.switch-options button{flex:1;padding:6px;font-size:10px}.switch-options button.active{background:#37594d;color:#bdddba;border-color:#6b8f71}.subtle{color:#72929b;font-size:10px;line-height:1.7;margin:12px 0 0}.inspect-title{font-size:14px;margin:16px 0 8px;font-weight:500}.inspect-description{font-size:10px;color:#8cabb2;line-height:1.6}.param-row{display:flex;justify-content:space-between;gap:10px;font:9px var(--mono);margin-top:9px;color:#779aa5}.param-row strong{font-weight:400;color:#b7cfca}.pin-row{display:flex;align-items:center;justify-content:space-between;font:9px var(--mono);padding:6px 0;border-bottom:1px solid #2c424b;color:#a4c1bf}.pin-row button{font-size:8px;padding:3px 6px;margin-left:4px;color:#a5c8b1}.pin-row button:last-child{color:#e0aa94}.notebook-entry{font-size:9px;line-height:1.7;margin-bottom:11px;padding-left:10px;border-left:2px solid #3e5d64;color:#94b1b7}.notebook-entry strong{display:block;color:#c6d8cf;font:9px var(--mono)}.notebook-entry small{color:#648891;font-size:8px}.notebook-section{max-height:250px;overflow:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}#toast{position:fixed;bottom:22px;left:50%;transform:translate(-50%,25px);background:#e2ece0;color:#274338;padding:12px 19px;border-radius:6px;box-shadow:0 8px 30px #071a2866;font-size:12px;opacity:0;pointer-events:none;transition:.2s;max-width:90vw;z-index:100}#toast.visible{opacity:1;transform:translate(-50%,0)}dialog{border:1px solid #506268;border-radius:12px;background:#1a3038;color:#d6e7e1;width:min(700px,92vw);padding:35px;max-height:87vh;box-shadow:0 30px 100px #0006}dialog::backdrop{background:#07161ebd;backdrop-filter:blur(4px)}#closeDialog{position:absolute;right:12px;top:10px;border:0;font-size:23px;color:#8da8aa}dialog h2{font-weight:500;letter-spacing:-.7px;font-size:29px;margin:14px 0}dialog p,dialog li{font-size:13px;line-height:1.8;color:#a9c2c6}dialog ul,dialog ol{padding-left:20px}dialog code{font-family:var(--mono);color:#ecc29c}dialog pre{font:11px/1.7 var(--mono);overflow:auto;background:#0e222a;border:1px solid #39525b;border-radius:6px;padding:20px;color:#b5d9ba;max-height:55vh;tab-size:2}.dialog-actions{display:flex;gap:10px;margin-top:22px}.resolved-score{font:70px var(--mono);color:var(--orange);margin:15px 0}.resolved-score small{font-size:18px;color:#6b909c}#loading{position:fixed;inset:0;background:#10252ded;z-index:110;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:18px;backdrop-filter:blur(4px)}#loading strong{font-weight:500;font-size:19px}#loading span{font:11px var(--mono);color:#88a6ac}.loader{width:33px;height:33px;border:2px solid #3d585d;border-top-color:var(--orange);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}#diagram svg{width:100%;height:100%;display:block}#diagram .wire-hit{stroke:transparent;stroke-width:16;cursor:pointer;fill:none}#diagram .wire-visible{stroke:#6c858a;stroke-width:2;fill:none;pointer-events:none}#diagram .selected-wire{stroke:#dc7d37;stroke-width:4}#diagram .part-body{fill:#f0f0df;stroke:#8b9f90;stroke-width:1;cursor:pointer}#diagram .selected-body{fill:#fde0b6;stroke:#c67c40;stroke-width:2}#diagram text{pointer-events:none;font-family:var(--mono);fill:#3b5b4b}#diagram .diagram-pin{fill:#b5914d;stroke:#f4ead2;stroke-width:1;cursor:pointer}.diagram-led{fill:#824d43}#diagram .ground{fill:#d5e0cd}body.playing .masthead{height:64px;padding:0 25px}body.playing .lab-layout{height:calc(100dvh - 153px)}@media(min-width:1600px){.lab-layout{grid-template-columns:minmax(0,1fr) 335px}.lab-main{grid-template-rows:minmax(380px,1fr) 320px}.scope-display{min-height:110px}}@media(max-width:1050px){.edition{display:none}.case-grid{grid-template-columns:repeat(3,1fr)}.hero{gap:5%}.lab-layout{grid-template-columns:minmax(0,1fr) 270px}.inspector>section{padding:18px 15px}.score-strip{gap:15px}.scope-controls{gap:5px}.scope-controls button{font-size:8px;padding:7px 5px}.lock-label{display:none}}@media(max-width:780px){.masthead{height:67px;padding:0 20px}.masthead nav{gap:5px}.hero{grid-template-columns:1fr;padding:40px 23px}.hero h1{font-size:clamp(52px,16vw,80px)}.hero-illustration{display:none}.hero-stats{gap:30px}.case-section{padding:25px 23px}.section-heading{align-items:start;flex-direction:column;gap:10px}.case-grid{grid-template-columns:repeat(2,1fr)}.case-card{padding:16px}.case-card h3{font-size:19px}.case-bar{height:auto;padding:16px;flex-wrap:wrap}.case-title h1{font-size:18px}.score-strip{gap:19px}.score-strip>div{min-width:80px}.score-strip strong{font-size:20px}.score-strip span{font-size:7px}.lab-layout,body.playing .lab-layout{height:auto;grid-template-columns:1fr;min-height:0}.lab-main{grid-template-rows:440px 305px}.inspector{display:grid;grid-template-columns:1fr 1fr;border-left:0;overflow:visible}.inspector>section{border-right:1px solid #34494f}.scope-footer>span:last-child{display:none}.scope-controls{grid-template-columns:1fr 1fr 1fr}.scope-controls button{display:none}.bench-toolbar .eyebrow{font-size:8px}.lobby-footer{flex-direction:column;line-height:1.7}#scopeEmpty{font-size:9px}#scopeEmpty>span{display:none}#scopeEmpty small{max-width:190px}.scope-readouts{width:100px;padding:7px}#scope{width:calc(100% - 100px)}#scopeEmpty{right:100px}.scope-readouts strong{font-size:12px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.case-card:hover{transform:none}}

/* Free observation strip: actual motion and brightness, never raw measurements. */
.output-strip{display:flex;align-items:center;gap:22px;min-height:96px;padding:12px 25px;border-bottom:1px solid #3b5156;background:#20343b}#visibleOutputs{display:flex;gap:20px;flex:1;overflow-x:auto}.output-card{display:grid;grid-template-columns:112px 112px;gap:3px 12px;flex-shrink:0;padding-left:18px;border-left:1px solid #3f555a}.output-name{grid-column:span 2;font:9px var(--mono);color:#d9e2d6;letter-spacing:.5px}.output-item{display:flex;align-items:center;gap:8px;font-size:10px;color:#c5d6cd}.output-item small{display:block;font:8px var(--mono);color:#8aa5ac;margin-bottom:4px}.output-icon{width:37px;height:37px;flex-shrink:0}.output-icon svg{width:100%;height:100%;stroke:#718d8d;fill:none;stroke-width:1.2}.output-motor .rotor{fill:#aacbb8;stroke:#9abdad;stroke-width:.5}.output-motor .rotor circle{fill:#e6ac69}.output-lamp .glow{fill:#4d443a}.output-lamp path{stroke:#ae9c7e}.output-strip>button{white-space:nowrap;font-size:10px}body.playing .lab-layout{height:calc(100dvh - 249px)}.lab-layout{min-height:660px}@media(max-width:1050px){.output-strip{gap:12px;padding:12px 16px}.output-card{grid-template-columns:98px 98px;gap:3px 8px;padding-left:12px}}@media(max-width:780px){.output-strip{flex-wrap:wrap}.output-strip>button{order:1}#visibleOutputs{order:2;flex-basis:100%}.output-card{padding-left:0;border:0;padding-right:20px}body.playing .lab-layout{height:auto}}

#visibleOutputs .output-card:first-child{padding-left:0;border-left:0}
#visibleOutputs{overflow-y:hidden;padding:8px 0}.output-name{font-size:10px}.output-item{font-size:11px}.output-item small{font-size:9px}.output-icon{width:40px;height:40px}
.output-card{grid-template-columns:140px 140px}.output-item small{white-space:nowrap}.output-item>span:last-child{min-width:0}.output-item>span:last-child>span{white-space:nowrap}@media(max-width:1050px){.output-card{grid-template-columns:140px 140px}}

/* Terminal inspection is free and never moves an active probe. */
#diagram{touch-action:none;user-select:none}#diagram [data-pin]{cursor:pointer}#diagram .terminal-label{paint-order:stroke;stroke:#e3eadf;stroke-width:.8;stroke-linejoin:round;fill:#596d5e;pointer-events:auto}#diagram .selected-pin .terminal-label{fill:#8b350a;font-weight:bold;stroke:#ffe8c9}#terminalFocus{position:absolute;right:12px;top:12px;background:#fff0d6;color:#81431d;border:1px solid #dba16d;border-radius:4px;padding:7px 10px;font:10px var(--mono);pointer-events:none}.pin-row .pin-name{margin:0;padding:6px 3px;text-align:left;font-size:10px;color:#c7dad0;border-color:transparent}.pin-row .pin-name.active{background:#5e452f;color:#ffdfaf;border-color:#a1764d}.pin-row>div{display:flex;flex-shrink:0}.bench-toolbar>div{white-space:nowrap}.bench-toolbar{gap:6px;overflow-x:auto;flex-shrink:0}.bench-toolbar>.eyebrow{white-space:nowrap}@media(max-width:1050px){.bench-toolbar>.eyebrow{display:none}.bench-toolbar>div{margin-left:auto}}

.component-details-button{width:100%;margin-top:16px;font-size:11px;padding:9px 10px;text-align:left;color:#e8be91;border-color:#66736e}
.component-details h3{font-size:14px;color:#e2cfaf;margin:25px 0 10px;font-weight:500}
.component-details dl{margin:0}.spec-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;padding:10px 0;border-bottom:1px solid #344d55;font:12px/1.6 var(--mono)}
.spec-row dt{color:#a4bdc2}.spec-row dd{margin:0;text-align:right;color:#e1e9df;overflow-wrap:anywhere}.component-details .spec-note{font-size:11px;color:#93adb3;line-height:1.7}.spec-empty{font-size:12px;color:#93adb3}
@media(max-width:480px){.spec-row{grid-template-columns:1fr;gap:3px}.spec-row dd{text-align:left}}

/* Diagnosis stays with case actions, away from instrument power. */
.scope-controls{grid-template-columns:minmax(85px,.65fr) repeat(2,minmax(0,1fr)) auto}
.scope-controls [data-scope-mode="current"]{grid-column:span 2}
@media(max-width:780px){.scope-controls{grid-template-columns:minmax(75px,.65fr) repeat(2,minmax(0,1fr))}.score-strip .score{padding-left:12px}.score-strip .score small{grid-column:span 2}}
@media(max-width:480px){.inspector{grid-template-columns:1fr}}

.output-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap;max-width:330px;flex-shrink:0}
.output-actions button{white-space:nowrap;font-size:10px}
@media(max-width:780px){.output-actions{order:1;max-width:100%}}

/* Top-view packages keep their own colours when selected. */
#diagram .part-outline{fill:transparent;stroke:transparent;stroke-width:2;cursor:pointer}#diagram .part-outline.selected-body{fill:none;stroke:#bf651f;stroke-width:2;stroke-dasharray:4 2;pointer-events:all}#diagram .top-view-part{pointer-events:none}

#testModeBar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 25px;background:#27493f;border-bottom:1px solid #56846c}#testModeBar strong{display:block;font:11px var(--mono);letter-spacing:1px;color:#c3e4bd}#testModeBar span{display:block;font-size:10px;color:#b4ccc1;margin-top:6px}.testing .score-strip,.testing .output-strip,.testing #scopePower,.testing #probeSelected,.testing .scope-controls label:has(#scopeMode),.testing .notebook-section{display:none}body.playing.testing .lab-layout{height:calc(100dvh - 210px)}.testing .scope-controls{grid-template-columns:1fr 1fr}.test-voltage-control{display:flex;align-items:center;gap:8px}.test-voltage-control input{min-width:40px;flex:1}.test-voltage-control button{padding:5px 9px;font-size:16px}#testIssues{border-left:3px solid #e3ac73;padding:9px 12px;background:#452f24;color:#f0c899;font-size:11px;line-height:1.6}@media(max-width:780px){body.playing.testing .lab-layout{height:auto}#testModeBar{padding:12px 16px;gap:10px}#testModeBar span{max-width:220px;line-height:1.5}}
@media(min-width:781px){body.playing.testing .lab-layout{height:calc(100dvh - 218px);min-height:480px}body.testing .lab-main{grid-template-rows:minmax(220px,1fr) 260px}}
#testModeBar{flex-wrap:wrap}#testSetupLabel{display:grid;gap:4px;font:10px var(--mono);color:#c3e4bd;min-width:0}#testSetup{width:100%;min-width:220px;max-width:300px;padding:7px 9px}#testSetupLabel small{font-size:10px;color:#b4ccc1}#returnToPuzzle{flex-shrink:0}@media(max-width:780px){#testSetupLabel{order:3;flex-basis:100%;grid-template-columns:auto minmax(0,1fr);align-items:center;column-gap:10px}#testSetup{min-width:0;max-width:none}#testSetupLabel small{grid-column:2}#testModeBar>div{flex:1;min-width:120px}}

/* The guide gates controls; its visual spotlight never captures pointer events. */
#tutorialGuide{position:sticky;top:0;z-index:95;background:#192f37;color:#e3eee8;border-bottom:1px solid #53676a;padding:20px 28px 22px;display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:16px 32px;box-shadow:0 6px 22px #06171955}
.tutorial-copy{max-width:900px}.tutorial-eyebrow{display:flex;gap:16px;color:#a3b9bd;font:11px var(--mono);letter-spacing:1.5px;margin-bottom:12px}#tutorialProgress{color:#efbd8b;font-weight:700}#tutorialText{font-size:16px;line-height:1.6;margin:0;color:#e3eee8;outline:none}#tutorialStatus{font-size:13px;line-height:1.4;margin:10px 0 0;color:#acc0c4}#tutorialStatus.complete{color:#b4e5bd;font-weight:650}.tutorial-actions{align-self:center;display:flex;flex-direction:column;gap:16px}.tutorial-navigation{display:flex;gap:8px}.tutorial-session{display:flex;justify-content:flex-end;gap:12px;padding-top:8px;border-top:1px solid #3c555e}.tutorial-actions button{white-space:nowrap;font-size:13px;min-height:40px;border-color:#657e83;color:#deebe6;padding:9px 13px}.tutorial-actions button:hover{background:#29464f}.tutorial-actions button.primary{min-width:90px;background:#efbd8b;border-color:#efbd8b;color:#192f37;flex:1}.tutorial-actions button.primary:hover{background:#ffd1a3}.tutorial-actions button.quiet{color:#acc0c4;font-size:12px}#tutorialMeter{position:absolute;bottom:0;left:0;width:100%;height:4px;border:0;appearance:none}#tutorialMeter::-webkit-progress-bar{background:#314c55}#tutorialMeter::-webkit-progress-value{background:#efbd8b}#tutorialMeter::-moz-progress-bar{background:#efbd8b}
#tutorialSpotlight{position:fixed;z-index:90;pointer-events:none;border:3px solid #ffd293;border-radius:8px;box-shadow:0 0 0 9999px #06171945,0 0 0 2px #1d3a30;transition:none}body.tutorial-active{padding-bottom:24px}body.tutorial-active #toast{z-index:96}body.tutorial-active #testModeBar{top:var(--tutorial-height,230px)}body.tutorial-active .lab-layout{height:calc(100dvh - var(--tutorial-height,230px) - 249px);min-height:600px}body.tutorial-active .lab-main{grid-template-rows:minmax(320px,1fr) 280px}body.tutorial-active dialog{scroll-margin-top:var(--tutorial-height,230px)}
@media(max-width:780px){#tutorialGuide{padding:14px 16px 17px;grid-template-columns:1fr;gap:10px}#tutorialText{font-size:15px;line-height:1.5}.tutorial-eyebrow{font-size:10px}#tutorialStatus{font-size:12px;margin-top:7px}.tutorial-actions{gap:16px}.tutorial-actions button{font-size:12px;padding:7px 10px;min-height:44px}.tutorial-actions button.quiet{font-size:11px}body.tutorial-active .lab-layout{height:auto}body.tutorial-active .lab-main{grid-template-rows:360px 290px}body.tutorial-active #testModeBar{position:relative;top:auto}}

/* Guided learning has its own outlined treatment, distinct from random cases. */
#quickStart{display:inline-flex;align-items:center;gap:12px;background:#203c3a;border:1px solid #8ccbb9;border-radius:999px;color:#c5eddd;padding:14px 24px;font-size:15px;box-shadow:inset 0 0 0 3px #142c2c}#quickStart:hover{background:#2a4c45;border-color:#b9ebd7;color:#e7fff3}#quickStart svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}