:root{--ink:#163849;--deep:#102f40;--muted:#64808c;--line:#dfebef;--aqua:#0f948b;--mint:#ddf4ed;--bg:#eff5f5;--panel:#fff;--shadow:0 11px 36px rgba(13,53,73,.055);font-family:Inter,"Aptos","Segoe UI",system-ui,-apple-system,sans-serif;color:var(--ink)}
*{box-sizing:border-box}html,body{margin:0;width:100%;height:100%;overflow:hidden}body{background:var(--bg)}button,select,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.4}button:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #73cbbd;outline-offset:2px}svg{display:block}svg path,svg circle{vector-effect:non-scaling-stroke}button svg{width:19px;height:19px;stroke:currentColor;stroke-width:1.85;stroke-linecap:round;stroke-linejoin:round;fill:none;flex-shrink:0}button svg#run-icon{fill:currentColor;stroke:currentColor}.app-shell{height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden;min-height:0}.topbar{height:70px;flex:0 0 70px;background:#15384a;color:#fff;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;z-index:4;box-shadow:0 3px 20px rgba(12,45,59,.14)}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:#1f5160}.brand-mark svg{width:33px;height:33px;fill:none;stroke:#a6e8d3;stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}.brand-mark circle{fill:#f5ae69;stroke:none}.brand-type{display:flex;flex-direction:column;gap:1px}.brand-mini{font-size:9px;font-weight:800;letter-spacing:2px;color:#96bac0}.small-dot{color:#67dbbb}.brand-type strong{font-size:23px;line-height:1.07;letter-spacing:-.95px;font-weight:790}.brand-type strong span{color:#76e0c0}.version-chip{border:1px solid #4b7882;color:#a7c5c9;padding:3px 7px;border-radius:6px;font-size:10px;font-weight:800;margin:4px 0 0 2px}.view-switch{display:flex;background:#234b5b;padding:4px;border-radius:12px;gap:2px;flex-shrink:0}.view-switch button{background:none;color:#acced5;border:0;border-radius:9px;padding:10px 16px;font-weight:700;font-size:12px}.view-switch button.selected{background:#fff;color:#154656;box-shadow:0 2px 7px #09283755}.top-actions{display:flex;align-items:center;gap:12px}.label-toggle{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:720;cursor:pointer;white-space:nowrap}.label-toggle input,.switch input{position:absolute;opacity:0;pointer-events:none}.toggle-track{height:22px;width:39px;background:#607784;display:block;border-radius:100px;position:relative;transition:.2s}.toggle-track:before{content:"";position:absolute;top:3px;left:3px;height:16px;width:16px;background:#fff;border-radius:50%;transition:.2s}.label-toggle input:checked+.toggle-track{background:#38bfa6}.label-toggle input:checked+.toggle-track:before{transform:translateX(17px)}.utility-btn,.icon-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid #4f7180;background:transparent;color:#e4f5f5;min-height:37px;border-radius:9px;gap:7px;padding:0 10px;font-size:12px;font-weight:750}.icon-button{width:37px;padding:0}.utility-btn:hover,.icon-button:hover{background:#ffffff16}.mobile-only,.sidebar-close{display:none}
.workbench{display:grid;grid-template-columns:255px minmax(0,1fr) 318px;flex:1;min-height:0;gap:13px;padding:13px 13px 11px}.sidebar{background:var(--panel);border:1px solid #deeaee;box-shadow:var(--shadow);border-radius:16px;min-height:0;overflow:hidden}.setup-panel{padding:19px 16px;display:flex;flex-direction:column;gap:9px}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:5px}.eyebrow{font-size:9.5px;letter-spacing:1.7px;color:#69929c;font-weight:850;line-height:1.3}.panel-heading h2{font-size:19px;letter-spacing:-.5px;line-height:1.25;margin:3px 0}.side-description{color:#77909a;font-size:11.5px;line-height:1.5;margin:-1px 0 3px}.halfcell-config{padding:12px;border-radius:12px;border:1px solid #deebee;background:#fbfdfd}.halfcell-head{display:flex;align-items:center;gap:8px;margin-bottom:10px;font-size:12px}.half-index{font-size:10px;color:#178b87;background:#dcf4ee;border-radius:6px;padding:5px 6px;font-weight:850}.sample-swatch{width:12px;height:12px;border-radius:50%;margin-left:auto;box-shadow:inset 0 0 0 1px #0001}.halfcell-config label{display:block;font-size:10.5px;color:#77909a;font-weight:650;margin-bottom:4px}.halfcell-config select{appearance:none;-webkit-appearance:none;width:100%;border:1px solid #deeaec;border-radius:8px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235d8189' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 11px center;color:#224859;font-size:12px;font-weight:700;padding:8px 28px 8px 10px;min-height:34px;margin-bottom:9px}.conc-row{display:flex;align-items:center;justify-content:space-between;gap:4px;margin-top:-1px;font-size:10px;color:#78909a}.text-link{background:none;border:0;padding:0;color:#138b83;font-size:10.5px;font-weight:800}.text-link:hover{text-decoration:underline}.text-link span{font-size:11px}.swap-line{display:flex;align-items:center;gap:10px;margin:-2px 4px}.swap-line>span{height:1px;background:#e3edf0;flex:1}.swap-btn{display:flex;align-items:center;gap:5px;color:#34877e;font-size:10px;font-weight:800;white-space:nowrap;border:0;background:#eaf6f2;border-radius:20px;padding:5px 11px}.swap-btn svg{width:13px;height:13px}.setup-bottom{display:flex;flex-direction:column;gap:4px;margin-top:auto}.control-line{display:flex;align-items:center;padding:7px 2px;border-bottom:1px solid #eaf1f3;gap:10px}.control-symbol{display:grid;place-items:center;width:31px;height:31px;border-radius:9px;flex-shrink:0;font-weight:800;font-size:19px}.control-symbol.salt{color:#916b4b;background:#f9efdc}.control-symbol.circuit{color:#278c91;background:#e3f3f1}.control-line-text{display:flex;flex-direction:column;gap:2px;flex:1}.control-line-text strong{font-size:11.5px}.control-line-text small{font-size:9.5px;color:#899ca3}.switch{position:relative;display:block;width:38px;height:22px;flex:0 0 38px;cursor:pointer}.switch span{position:absolute;inset:0;border-radius:16px;background:#b4c5c9;transition:.2s}.switch span:before{content:"";position:absolute;width:16px;height:16px;top:3px;left:3px;background:white;border-radius:50%;box-shadow:0 1px 3px #0003;transition:.2s}.switch input:checked+span{background:#22a999}.switch input:checked+span:before{transform:translateX(16px)}.outline-wide{border:1px solid #d5e7e9;background:#fff;color:#376c79;width:100%;border-radius:9px;padding:10px 11px;display:flex;align-items:center;gap:9px;font-weight:750;font-size:11.5px;margin-top:6px;justify-content:flex-start}.outline-wide span{margin-left:auto;color:#6b9da7}.outline-wide svg{width:16px;height:16px}.outline-wide:hover{background:#f1faf8}
.center-panel{min-width:0;min-height:0;display:flex;flex-direction:column;gap:11px}.stage-head{padding:4px 8px 0;display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:49px}.stage-head h1{margin:2px 0 0;font-size:22px;letter-spacing:-.65px;line-height:1.3}.status-line{display:flex;align-items:center;gap:7px;font-size:10.5px;color:#547f80;white-space:nowrap;background:#e6f5f0;border:1px solid #cfede4;padding:7px 10px;border-radius:30px}.status-dot{height:8px;width:8px;border-radius:50%;background:#4fbfa3}.status-dot.running{animation:blink 1.4s infinite}.status-dot.warn{background:#e8aa6a}@keyframes blink{50%{opacity:.28}}
.stage-frame{position:relative;min-height:0;flex:1;background:radial-gradient(ellipse at 49% 38%,#fff 12%,#f5fafb 65%,#e8f1f3 125%);border:1px solid #dbe7ec;border-radius:17px;box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;padding:8px}.stage-frame:before{content:"";pointer-events:none;position:absolute;inset:0;background-image:radial-gradient(#a1bec4 0.6px,transparent .7px);background-size:22px 22px;opacity:.19}.visual-macro{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;position:relative;z-index:1}.cell-svg{width:100%;height:100%;max-width:100%;max-height:100%;overflow:visible;pointer-events:none}.visual-particles{display:flex;gap:10px;min-height:0;z-index:1;position:relative}.micro-card{flex:1 1 0;min-width:0;background:#f5fafbdf;border:1px solid #dce9ed;border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.micro-title{display:flex;align-items:center;gap:7px;font-size:10px;font-weight:800;color:#446a78;padding:8px 11px 0;white-space:nowrap;min-width:0}.micro-title>span:nth-child(2){overflow:hidden;text-overflow:ellipsis}.micro-bullet{width:9px;height:9px;background:#acc1ca;border-radius:50%;flex-shrink:0}.micro-hint{margin-left:auto;color:#a27a49;font-weight:700;font-size:9px}.micro-card canvas{width:100%;height:100%;min-height:0;display:block;flex:1}.micro-bridge{position:absolute;left:50%;transform:translateX(-50%);bottom:3px;background:#fffdeb;border:1px solid #ebe2bf;border-radius:20px;padding:4px 12px;font-size:9px;color:#826c47;white-space:nowrap;box-shadow:0 2px 10px #6b694615}.micro-bridge strong{font-weight:780}.mini-divider{margin:0 8px}.mode-macro .visual-particles{display:none}.mode-particle .visual-macro{display:none}.mode-particle .visual-particles{flex:1;min-height:0;padding:14px 6px 27px}.mode-particle .micro-card{border-radius:15px}.mode-particle .micro-title{padding:15px 17px 0;font-size:13px}.mode-particle .micro-hint{font-size:11px}.mode-particle .micro-bridge{bottom:9px;font-size:12px;padding:9px 18px}.mode-both .visual-macro{flex:1 1 0;min-height:0}.mode-both .visual-particles{height:144px;flex:0 0 144px;padding:0 0 16px}.mode-both .micro-bridge{bottom:0}.stage-frame.unlabelled .apparatus-label{display:none}.stage-frame.unlabelled .micro-hint,.stage-frame.unlabelled .micro-title>span:nth-child(2){visibility:hidden}.stage-floating{position:absolute;top:12px;left:15px;display:flex;align-items:center;gap:7px;z-index:2}.live-pill,.mini-pill{display:flex;align-items:center;gap:6px;border-radius:100px;padding:6px 9px;background:#fffef5;border:1px solid #eee9d9;font-size:9.5px;font-weight:820;letter-spacing:.6px;color:#6b8a86}.mini-pill{font-size:9px;background:#ffffffcf;color:#78969d;border-color:#e8f0f1;font-weight:650;letter-spacing:0}.pulse-dot{width:7px;height:7px;background:#37b4a0;border-radius:50%}.mode-particle .stage-floating{top:auto;bottom:44px}.stage-empty{position:absolute;z-index:10;left:50%;top:50%;transform:translate(-50%,-50%);width:min(420px,90%);background:#fffefbee;padding:23px;text-align:center;border:1px solid #efd3ab;border-radius:16px;box-shadow:0 12px 50px #35506830}.stage-empty[hidden]{display:none}.empty-icon{font-size:24px;font-weight:800;width:40px;height:40px;display:grid;place-items:center;margin:0 auto 7px;color:#bb773a;background:#ffebd3;border-radius:50%}.stage-empty h3{font-size:17px;margin:5px 0}.stage-empty p{font-size:12px;line-height:1.55;color:#6a8490}.stage-footer{display:flex;align-items:center;gap:11px;min-height:61px;padding:10px 15px;background:#fff;border:1px solid #dfeaec;border-radius:13px;box-shadow:var(--shadow)}.explain-icon{width:34px;height:34px;display:grid;place-items:center;flex-shrink:0;color:#078d83;background:#e2f7f1;border-radius:10px;font-size:19px;font-weight:700}.stage-explain{min-width:0;flex:1}.stage-explain strong{font-size:11.5px}.stage-explain p{font-size:10.5px;color:#7b929a;margin:4px 0 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.subtle-button{background:#edf6f7;border:0;color:#2a7780;font-size:11px;font-weight:800;border-radius:8px;padding:10px 12px;white-space:nowrap}
.data-panel{padding:16px;display:flex;flex-direction:column;gap:11px}.panel-heading.compact{min-height:40px}.inspector-tabs{background:#f0f5f6;border-radius:10px;display:flex;gap:2px;padding:4px}.inspector-tabs button{flex:1;border:0;background:none;border-radius:7px;color:#81979e;padding:9px 4px;font-size:11px;font-weight:800;white-space:nowrap}.inspector-tabs button.active{background:white;box-shadow:0 2px 8px #2e56631c;color:#227b79}.inspector-body{display:flex;flex-direction:column;gap:11px;flex:1;min-height:0}.inspector-body[hidden]{display:none}.voltage-card{background:#15394b;border:1px solid #275569;display:flex;justify-content:space-between;align-items:center;gap:4px;padding:14px 14px;border-radius:12px;color:white}.voltage-eyebrow{font-size:9px;font-weight:850;letter-spacing:1.5px;color:#9bc6c9}.voltage-number{font-size:36px;font-weight:790;letter-spacing:-1.5px;margin:0;line-height:1.2;color:#a1f3d2;font-variant-numeric:tabular-nums}.voltage-number span{font-size:21px;color:#b6e8d9}.volt-subtext{display:block;color:#9dbdc6;font-size:9.5px}.voltage-spark{height:52px;width:69px;flex-shrink:0;opacity:.8}.two-identities{display:grid;grid-template-columns:1fr 1fr;gap:8px}.identity{border:1px solid #e1ebed;background:#f8fbfb;border-radius:10px;padding:10px 11px;display:flex;flex-direction:column;gap:4px}.identity>span{color:#839aa2;font-size:9px;letter-spacing:.75px;font-weight:850}.identity em{font-style:normal;font-weight:900;color:#b88343;font-size:12px}.identity strong{font-size:19px;line-height:1}.identity small{font-size:9.5px;color:#8199a0}.equation-section{min-height:0}.section-mini-head{display:flex;justify-content:space-between;align-items:center;color:#64818b;font-size:9.5px;font-weight:860;letter-spacing:1.2px;margin:0 0 8px}.equation-box{padding:8px 10px;margin-bottom:6px;border:1px solid #e3ecef;border-radius:9px;background:#fff}.eq-type{font-size:9px;color:#8499a3;font-weight:850;letter-spacing:1px}.eq-type.ox{color:#c38a47}.eq-type.red{color:#169b8f}.eq-text{font-size:12px;font-weight:740;line-height:1.35;letter-spacing:-.12px;overflow-wrap:anywhere;color:#264957;margin-top:4px}.eq-overall{padding:9px 10px;background:#eaf7f2;border:1px solid #d3ede6;border-radius:9px}.eq-overall .eq-type{color:#528a7b}.eq-overall .eq-text{font-size:11.5px}.potential-logic{padding:9px 11px;border:1px solid #dfe9eb;border-radius:10px}.potential-logic .section-mini-head{margin-bottom:7px}.potential-logic .section-mini-head span{color:#259f8a;background:#e5f7ee;padding:4px 5px;border-radius:4px;font-size:8px}.potential-logic p{margin:0 0 4px;color:#81969c;font-size:11px}.calc-answer{font-size:12px;color:#416574;line-height:1.4}.calc-answer strong{color:#008c79}.cell-notation{display:flex;flex-direction:column;gap:6px;border-top:1px solid #ebf1f2;padding-top:3px}.cell-notation span{font-size:9px;color:#77939b;font-weight:850;letter-spacing:1px}.cell-notation strong{font-size:10px;line-height:1.4;color:#4b6672;overflow-wrap:anywhere}.other-body{gap:9px}.series-intro{color:#748e99;font-size:11.5px;line-height:1.5}.series-column-label{display:flex;justify-content:space-between;color:#93a8ad;letter-spacing:1px;font-size:9px;font-weight:800;padding:7px 6px 2px}.series-row{display:flex;align-items:center;gap:8px;width:100%;border:1px solid #e6edf0;border-radius:9px;padding:8px 9px;background:#fff;margin-bottom:5px;text-align:left;transition:background .16s}.series-row:hover{background:#f0f9f7}.series-row.selected-half{background:#eaf7f4;border-color:#a0dbd0}.series-row .series-symbol{width:30px;display:grid;place-items:center;height:29px;color:#23596c;background:#e7f0f3;border-radius:7px;font-size:12px;font-weight:800;flex-shrink:0}.series-row .series-reaction{min-width:0;flex:1;color:#47646f;font-size:10.5px}.series-row .series-reaction small{display:block;color:#9aabb0;font-size:9px;margin-top:2px}.series-row .series-val{font-size:12px;font-weight:850;color:#174757;white-space:nowrap}.series-help{display:flex;flex-direction:column;gap:3px;color:#6c9690;font-size:10px;margin-top:3px}.chart-header{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#587c87;font-weight:750}.chart-header strong{font-size:16px;color:#148f84}#voltage-chart{width:100%;height:190px;display:block;background:#f7fbfc;border:1px solid #e5eff1;border-radius:10px}.graph-stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.graph-stat-grid>div{display:flex;flex-direction:column;gap:5px;background:#f6fafb;border:1px solid #e8f0f2;border-radius:9px;padding:10px}.graph-stat-grid span{color:#819ca3;font-size:10px}.graph-stat-grid strong{font-size:13px}.graph-note{border-top:1px solid #eaf0f2;padding-top:11px;color:#7f9ba2;font-size:11px;line-height:1.6}
.transport-bar{display:flex;align-items:center;justify-content:space-between;height:70px;flex:0 0 70px;padding:0 19px;background:#fff;border-top:1px solid #dce9ec;box-shadow:0 -2px 14px rgba(44,88,101,.03);gap:8px;z-index:3}.transport-left,.transport-right,.run-cluster{display:flex;align-items:center;gap:10px}.run-cluster{gap:6px}.primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#129687;border:1px solid #0a8b7c;color:#fff;border-radius:10px;padding:10px 18px;font-weight:800;font-size:12px;box-shadow:0 4px 13px #09977a22}.primary:hover{background:#087a70}.primary.small{padding:10px 13px}.run-btn{min-width:118px;height:41px}.transport-btn{width:41px;height:41px;display:grid;place-items:center;background:#f2f7f8;border:1px solid #e0eaed;border-radius:9px;color:#4b7c86}.transport-btn:hover,.transport-tools:hover{background:#e8f6f4}.transport-time{display:flex;flex-direction:column;gap:2px;margin-left:12px}.transport-time span{font-size:9px;letter-spacing:1.2px;color:#87a0a6;font-weight:850}.transport-time strong{font-size:17px;letter-spacing:1px;font-variant-numeric:tabular-nums;color:#254e60}.speed-control{display:flex;align-items:center;gap:4px}.speed-control>span{font-size:11px;font-weight:760;color:#78929a;margin-right:6px}.speed-control button{border:1px solid #e2ebed;background:#f3f7f8;padding:9px 11px;border-radius:8px;font-size:11px;color:#738e98;font-weight:850}.speed-control button.active{background:#dff5ee;color:#0e8b7d;border-color:#aee1d1}.transport-tools{display:inline-flex;align-items:center;gap:7px;border:1px solid #dce8eb;background:#fff;color:#447684;border-radius:9px;padding:10px 12px;font-size:11px;font-weight:800;margin-left:12px}
.panel-backdrop,.modal-backdrop{position:fixed;inset:0;background:#102d3bb8;z-index:12}.panel-backdrop[hidden],.modal-backdrop[hidden]{display:none}.modal-backdrop{z-index:20;display:grid;place-items:center;padding:18px;backdrop-filter:blur(3px)}.modal{width:min(630px,calc(100vw - 22px));max-height:min(85dvh,790px);display:flex;flex-direction:column;min-height:0;background:#fff;border:1px solid #e3eef1;border-radius:19px;box-shadow:0 30px 100px #00192355}.modal-head{padding:20px 25px 15px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e9f0f2}.modal-head h2{font-size:22px;margin:2px 0;letter-spacing:-.5px}.modal-exit{color:#477181;border-color:#deeaec;font-size:26px;line-height:0}.modal-body{padding:20px 25px;overflow-y:auto;overscroll-behavior:contain;line-height:1.55;color:#567580;font-size:13px}.modal-actions{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:9px;padding:14px 25px 20px;border-top:1px solid #e9f0f2}.modal-actions button{padding:11px 16px;border-radius:9px;font-weight:800;font-size:12px}.modal-actions .secondary{background:#edf5f5;color:#447582;border:1px solid #dae8eb}.modal-body h3{color:#214b5d;font-size:15px;margin:14px 0 5px}.modal-body p{margin:7px 0 11px}.modal-body ul{padding-left:20px}.modal-body li{margin:6px 0}.modal-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.modal-field{display:flex;flex-direction:column;gap:7px}.modal-field label{font-size:11px;font-weight:800;color:#4e737f}.modal-field input,.modal-field select{border:1px solid #d9e8e9;background:#f9fcfc;color:#224d5f;border-radius:9px;padding:11px;font-size:13px;width:100%}.modal-callout{background:#edf8f4;color:#3d7b73;border:1px solid #d5eee4;border-radius:10px;padding:12px 14px;margin:14px 0;font-size:12px}.modal-warning{background:#fff5ea;border-color:#f0dfc5;color:#926b39}.challenge-list{display:grid;gap:8px}.challenge-item{display:flex;align-items:center;gap:12px;text-align:left;background:#f7fafb;border:1px solid #e1ebee;border-radius:10px;padding:12px;cursor:pointer;color:#234f5d}.challenge-item:hover{background:#eaf7f3}.challenge-item strong{font-size:12px}.challenge-item small{display:block;font-size:11px;color:#759099;margin-top:4px}.challenge-badge{width:32px;height:32px;display:grid;place-items:center;background:#d6f3e9;color:#158b79;border-radius:9px;font-weight:900;flex-shrink:0}.challenge-check{display:flex;align-items:center;gap:9px;margin-top:12px}.challenge-check button{padding:9px 14px}.challenge-feedback{font-weight:700;color:#218474}.lab-report-preview{white-space:pre-wrap;font:12px/1.6 ui-monospace,Menlo,Consolas,monospace;background:#f5f9fa;border:1px solid #dce9eb;padding:12px;border-radius:9px;color:#33515a}.toast{position:fixed;left:50%;bottom:88px;transform:translate(-50%,20px);opacity:0;pointer-events:none;z-index:30;color:#fff;background:#193d4c;border:1px solid #3c7283;box-shadow:0 10px 30px #00192340;padding:12px 18px;font-size:12px;font-weight:750;border-radius:10px;transition:opacity .2s,transform .2s}.toast.show{opacity:1;transform:translate(-50%,0)}
@media (max-height:820px) and (min-width:851px){.topbar{height:61px;flex-basis:61px}.workbench{padding:9px 10px 8px;gap:9px}.transport-bar{height:59px;flex-basis:59px}.setup-panel{padding:12px 12px;gap:5px}.panel-heading h2{font-size:17px}.side-description{margin:0;font-size:10px}.halfcell-config{padding:9px}.halfcell-head{margin-bottom:7px}.halfcell-config select{min-height:30px;padding-top:6px;padding-bottom:6px;margin-bottom:6px}.control-line{padding:5px 1px}.outline-wide{margin-top:3px;padding:8px}.data-panel{padding:11px;gap:7px}.inspector-body{gap:7px}.voltage-card{padding:8px 12px}.voltage-number{font-size:30px}.identity{padding:7px 9px;gap:2px}.identity strong{font-size:17px}.equation-box{padding:6px 8px;margin-bottom:4px}.eq-overall{padding:6px 8px}.eq-text{font-size:11px}.potential-logic{padding:7px 9px}.cell-notation{gap:3px}.stage-head{min-height:41px}.stage-head h1{font-size:19px}.stage-footer{min-height:51px;padding:6px 10px}.mode-both .visual-particles{height:112px;flex-basis:112px}.micro-title{padding:5px 9px 0}.stage-floating{top:8px;left:9px}.stage-frame{padding:5px}}
@media (max-width:1150px) and (min-width:851px){.workbench{grid-template-columns:220px minmax(0,1fr) 283px;gap:9px}.topbar{padding:0 13px;gap:10px}.brand-type strong{font-size:20px}.brand-mark{height:39px;width:39px}.view-switch button{padding:9px 11px}.top-actions{gap:7px}.utility-btn{padding:0 7px}.data-panel{padding:12px}.setup-panel{padding:13px}.side-description{font-size:10px}.stage-head h1{font-size:19px}.mini-pill{display:none}.stage-footer .subtle-button{padding:9px}.voltage-number{font-size:32px}}
@media (max-width:950px){.workbench{grid-template-columns:210px minmax(0,1fr) 257px;gap:7px;padding:8px}.data-panel{padding:10px}.setup-panel{padding:11px}.brand-mini{letter-spacing:1px}.brand-type strong{font-size:19px}.version-chip{display:none}.view-switch button{padding:8px 9px}.utility-btn span{display:none}.utility-btn{width:37px}}
@media (max-width:850px){.topbar{height:60px;flex:0 0 60px;padding:0 11px}.mobile-only,.sidebar-close{display:inline-flex}.brand{gap:8px}.brand-type strong{font-size:19px}.brand-mini{font-size:8px;letter-spacing:1px}.brand-mark{width:36px;height:36px;border-radius:10px}.brand-mark svg{width:28px;height:28px}.brand .icon-button{border-color:#597988;width:31px;height:36px}.brand .icon-button svg{width:17px}.view-switch button{font-size:10px;padding:8px 10px}.top-actions{gap:5px}.label-toggle{font-size:11px;gap:6px}.top-actions .icon-button{width:32px;height:34px;min-height:34px}.top-actions .utility-btn{min-height:34px;width:32px}.top-actions #btn-help{display:none}.workbench{display:block;min-height:0;padding:8px}.center-panel{height:100%;gap:7px}.stage-head{min-height:40px;padding:0 6px}.stage-head h1{font-size:19px}.stage-footer{min-height:56px}.stage-explain p{font-size:10px}.sidebar{position:fixed;z-index:14;top:8px;bottom:8px;width:min(328px,86vw);box-shadow:0 22px 85px #00263f55;transition:transform .2s;overflow-y:auto}.setup-panel{left:0;transform:translateX(-106%);padding:18px;gap:9px}.data-panel{right:0;transform:translateX(106%);padding:16px}.sidebar.panel-open{transform:translateX(0)}.sidebar-close{color:#456e7c;border:1px solid #dfebee;font-size:27px;width:31px;height:31px}.side-description{font-size:12px}.setup-bottom{margin-top:10px}.halfcell-config{padding:12px}.data-panel .inspector-body{gap:12px}.transport-bar{height:63px;flex-basis:63px;padding:0 11px}.mode-both .visual-particles{height:140px;flex-basis:140px}.stage-floating{top:8px;left:8px}}
@media (max-width:570px){.topbar{gap:4px;padding:0 8px}.brand-type strong{font-size:17px}.brand-mini{font-size:7px}.brand-mark{display:none}.view-switch{gap:0;padding:3px}.view-switch button{font-size:9px;padding:8px 7px}.top-actions{gap:4px}.label-toggle>span:first-child{display:none}.label-toggle{gap:0}.toggle-track{width:32px;height:20px}.toggle-track:before{width:14px;height:14px}.label-toggle input:checked+.toggle-track:before{transform:translateX(12px)}.top-actions .utility-btn{display:none}.top-actions .icon-button{width:28px;height:30px;min-height:30px}.top-actions #open-analysis{display:inline-flex}.stage-head h1{font-size:16px}.stage-head .eyebrow{font-size:8px}.status-line{font-size:9px;padding:5px 7px}.stage-frame{padding:4px}.mode-both .visual-particles{flex-basis:160px;height:160px;flex-direction:column;gap:4px;padding-bottom:17px}.mode-both .micro-card{flex:1 1 0;min-height:0}.mode-both .micro-title{font-size:9px;padding:2px 7px 0}.mode-particle .visual-particles{flex-direction:column;padding:9px 4px 30px;gap:8px}.mode-particle .micro-title{font-size:10px;padding:6px 9px 0}.mode-particle .micro-bridge{font-size:9px;padding:6px 7px;bottom:3px}.micro-bridge{font-size:8px;padding:2px 7px}.stage-footer{padding:6px;min-height:52px;gap:6px}.explain-icon{width:27px;height:27px;font-size:16px}.stage-explain strong{font-size:10px}.stage-explain p{font-size:9px}.subtle-button{padding:7px;font-size:9px}.mini-pill{display:none}.transport-time{display:none}.transport-bar{gap:4px}.transport-left,.transport-right{gap:3px}.run-btn{min-width:89px;font-size:10px;padding:8px 10px;height:37px}.run-btn svg{width:16px}.transport-btn{width:35px;height:37px}.speed-control{gap:3px}.speed-control>span{display:none}.speed-control button{padding:8px 7px;font-size:10px}.transport-tools{margin-left:0;padding:8px;font-size:10px}.transport-tools span{display:none}.stage-floating{top:6px;left:6px}.live-pill{font-size:8px;padding:5px}.modal-body{padding:13px}.modal-head{padding:15px}.modal-actions{padding:13px}.modal-grid{grid-template-columns:1fr}}
@media (max-height:570px){.mode-both .visual-particles{height:91px;flex-basis:91px}.stage-head{min-height:30px}.stage-footer{min-height:42px}.stage-frame{padding:3px}.stage-footer .subtle-button{padding:5px}.stage-explain p{margin:2px 0 0}.transport-bar{height:54px;flex-basis:54px}.topbar{height:54px;flex-basis:54px}}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.001ms!important;transition-duration:.001ms!important}}
/* Keep all header controls usable at narrow phone widths. */
@media (max-width:570px){
 .brand-mini{display:none}
 .brand-type strong{font-size:16px;white-space:nowrap}
 .view-switch button{font-size:0;padding:8px 8px}
 .view-switch button::after{font-size:10px}
 .view-switch button[data-view="macro"]::after{content:"Macro"}
 .view-switch button[data-view="both"]::after{content:"Both"}
 .view-switch button[data-view="particle"]::after{content:"Ions"}
 .mode-both .visual-macro{flex:0 0 52%}
 .mode-both .visual-particles{flex:1 1 auto;height:auto}
}
/* Prioritise the apparatus on short landscape displays, while keeping the
   particle-only view available from the top view selector. */
@media (max-height:540px){
 .mode-both .visual-particles{display:none}
 .mode-both .visual-macro{flex:1 1 auto}
 .mode-both .stage-floating{top:4px}
}

/* Quantitative observations share the same inspector without added page height. */
.inspector-tabs button{font-size:10px;padding:9px 3px}
.changes-card{border:1px solid #e1ebed;border-radius:11px;padding:12px;background:#fafdfd}
.changes-title{display:flex;align-items:center;gap:9px;border-bottom:1px solid #e4eef0;padding-bottom:10px;margin-bottom:5px}
.changes-title div{display:flex;flex-direction:column;gap:3px}
.changes-title small{font-weight:850;font-size:9px;letter-spacing:1px;color:#77959b}
.changes-title strong{font-size:14px;color:#254c59}
.changes-icon{display:grid;place-items:center;width:34px;height:34px;font-weight:850;font-size:23px;border-radius:9px}
.changes-icon.loss{background:#fff0e0;color:#bc8047}.changes-icon.gain{background:#e4f7ed;color:#19997c}
.changes-metric{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:11px;color:#72919a;padding:8px 0;border-bottom:1px solid #eef3f4}
.changes-metric:last-child{border-bottom:0;padding-bottom:0}
.changes-metric strong{font-variant-numeric:tabular-nums;font-size:12px;color:#284e5c;white-space:nowrap}
.changes-metric strong.down{color:#b67a42}.changes-metric strong.up{color:#148f7b}
.changes-electrons{border:1px solid #cfe9e3;background:#e9f7f3;padding:12px;border-radius:10px;display:flex;flex-direction:column;gap:5px}
.changes-electrons span{font-size:9px;font-weight:850;color:#639387;letter-spacing:1px}
.changes-electrons strong{font-size:19px;color:#168577}
.changes-electrons p{font-size:10px;color:#668c88;margin:0}
@media (min-width:851px) and (max-height:750px){
 .setup-panel{gap:3px;padding:9px 11px}
 .halfcell-config{padding:7px 10px}
 .halfcell-config select{min-height:26px;padding-top:4px;padding-bottom:4px;margin-bottom:4px}
 .halfcell-config label{margin-bottom:2px}
 .halfcell-head{margin-bottom:5px}
 .control-line{padding:3px 1px}
 .outline-wide{padding:6px}
}

/* v1.1: unobtrusive indicator for independent local redox in non-matched solutions */
.reaction-mode{position:absolute;top:11px;right:12px;z-index:3;max-width:58%;padding:7px 11px;border:1px solid #eac993;border-radius:30px;background:#fff3dc;color:#995d1d;font-size:10px;letter-spacing:.5px;font-weight:850;box-shadow:0 2px 11px #68481119;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.reaction-mode[hidden]{display:none}
@media(max-width:570px){.reaction-mode{right:5px;top:30px;font-size:8px;padding:5px 7px;max-width:62%}}

/* v1.2: explicit model-limit notice below live voltage */
.assumption-note {background:#fff7e8;color:#775019;border:1px solid #f2d6a1;border-radius:10px;padding:9px 11px;font-size:11px;line-height:1.45;margin:7px 0 10px;}
.assumption-note[hidden] {display:none!important;}

/* v1.2: analysis pane must not let tall nonstandard-chemistry notices overlap equations. */
.data-panel .inspector-body{overflow-y:auto;overflow-x:hidden;scrollbar-width:thin;scrollbar-color:#c3d6db transparent;padding-right:2px;padding-bottom:7px;}
.data-panel .inspector-body>*{flex-shrink:0;}
.data-panel .inspector-body:has(.assumption-note:not([hidden])){gap:8px;}
.assumption-note{font-size:10px;line-height:1.33;padding:7px 9px;margin:1px 0 2px;}
.data-panel .inspector-body:has(.assumption-note:not([hidden])) .equation-box{padding:6px 9px;margin-bottom:4px;}
.data-panel .inspector-body:has(.assumption-note:not([hidden])) .eq-overall{padding:7px 9px;}
.data-panel .inspector-body:has(.assumption-note:not([hidden])) .section-mini-head{margin-bottom:6px;}