.ak-panel{background:var(--sim-bg);color:var(--sim-ink);border-radius:var(--radius);margin:20px 0;padding:12px}.ak-panel svg:not(.katex svg){touch-action:manipulation;width:100%;height:auto;display:block}.ak-panel text{font-family:var(--font);fill:var(--sim-ink)}.ak-panel .sim-btn{color:var(--sim-ink);background:#16212f;border-color:#33445a;min-height:40px}.ak-panel .sim-btn:hover:not(:disabled){border-color:var(--accent)}.ak-panel .sim-btn:disabled{opacity:.45;cursor:default}.ak-panel .sim-btn[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:#fff}.ak-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.ak-row+.ak-row{margin-top:8px}.ak-label{color:var(--sim-dim);font-size:14px}.ak-caption{margin:8px 0 0;font-size:15.5px;line-height:1.6}.ak-dim{color:var(--sim-dim);font-size:14px}.ak-box{background:#142033;border-radius:10px;margin-top:8px;padding:8px 12px;overflow-x:auto}.ak-box p{margin:4px 0;line-height:1.6}.ak-box .katex-display{margin:6px 0;font-size:.92em}.ak-good{color:#9be3b0}.ak-bad{color:#ffb4b4}.ak-warn{color:#ffd27a}.ak-badge{color:var(--sim-dim);vertical-align:middle;border:1px solid #5a6b80;border-radius:999px;padding:1px 8px;font-size:12.5px;display:inline-block}.ak-grid2{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;display:grid}@media (width<=640px){.ak-grid2{grid-template-columns:minmax(0,1fr)}}.ak-slider{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;font-size:15px;display:grid}.ak-slider input[type=range]{width:100%;min-height:40px;accent-color:var(--accent)}.akt{cursor:pointer}.akt-sel{fill:#5b9bff1f;stroke:var(--accent);stroke-width:2px}.akt-glass{fill:none;stroke:#a9bfd9;stroke-width:2.5px}.akt-rim{stroke:#a9bfd9;stroke-width:3px;stroke-linecap:round}.akt-liquid{opacity:.8;transition:fill 1.2s}.akt-mirror{animation:2.6s ease-in both akt-mirror}.akt-ppt{animation:1.6s ease-out both akt-settle}.akt-flake{animation:1.4s ease-in both akt-sink}.akt-oil{animation:1.4s ease-out both akt-fade}.akt-label{text-anchor:middle;fill:var(--sim-ink);font-size:22px}.akt-steam{fill:none;stroke:#dcebff8c;stroke-width:3px;stroke-linecap:round;animation:1.6s ease-in-out infinite akt-steam}@keyframes akt-mirror{0%{opacity:0}to{opacity:1}}@keyframes akt-settle{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes akt-sink{0%{opacity:0;transform:translateY(-16px)}to{opacity:.95;transform:translateY(0)}}@keyframes akt-fade{0%{opacity:0}to{opacity:1}}@keyframes akt-steam{0%{opacity:0;transform:translateY(6px)}50%{opacity:1}to{opacity:0;transform:translateY(-10px)}}[data-reduced] .akt-mirror,[data-reduced] .akt-ppt,[data-reduced] .akt-flake,[data-reduced] .akt-oil,[data-reduced] .akt-steam,[data-reduced] .akd-dart{animation:none!important}.aks-bond{stroke:#cfdbe9;stroke-width:4px;stroke-linecap:round}.aks-atom{text-anchor:middle;dominant-baseline:central;font-size:30px;font-weight:700}.aks-atom.o{fill:#ff8a80}.aks-tap{fill:#ffffff05;stroke:#0000;stroke-width:3px;cursor:pointer}.aks-tap:hover{stroke:#5b9bff}.aks-tap[data-state=alpha]{fill:#4cc26a40;stroke:#4cc26a}.aks-tap[data-state=wrong]{fill:#ff78782e;stroke:#ff7a7a}.aks-tap[data-state=carbonyl]{fill:#ffd2782e;stroke:#ffd27a}.akd-shield{fill:#8caad229;stroke:#a0bee68c;stroke-dasharray:6 6;stroke-width:2px}.akd-counter{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-top:8px;display:grid}.akd-counter>div{background:#142033;border:1.5px solid #0000;border-radius:10px;padding:6px 8px;font-size:14px}.akd-counter>div[data-sel]{border-color:var(--accent)}.akd-counter b{font-size:18px}.akd-bar{background:#24344a;border-radius:4px;height:8px;margin-top:4px;overflow:hidden}.akd-bar>span{background:#5b9bff;height:100%;transition:width .4s;display:block}.ak-figure{margin:16px 0}.ak-figure svg{width:100%;height:auto;display:block}.ak-figure figcaption{color:var(--text-muted);margin-top:6px;font-size:14.5px;line-height:1.6}.ak-drip{animation:1.5s ease-in infinite ak-drip}.ak-reflux{animation:1.2s ease-in infinite ak-reflux}@keyframes ak-drip{0%{opacity:1;transform:translateY(0)}to{opacity:.2;transform:translateY(56px)}}@keyframes ak-reflux{0%{opacity:1;transform:translateY(0)}to{opacity:.1;transform:translateY(150px)}}[data-reduced] .ak-drip,[data-reduced] .ak-reflux{animation:none}.ak-panel .sim-btn.small{min-height:40px;font-size:14px}.cl-panel{margin:0 0 12px}.cl-virtual{color:#ffd27a;background:#2a2412;border-radius:8px;margin:0 0 10px;padding:6px 10px;font-size:14.5px;line-height:1.6}.cl-shelf{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:6px;margin:4px 0;display:grid}.cl-shelf .sim-btn{white-space:normal;min-height:40px;padding:4px 8px;font-size:14px;line-height:1.3}.cl-card{background:#142033;border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin:8px 0;padding:8px 12px;font-size:15.5px;display:flex}.ak-panel .cl-ghs{gap:4px;display:flex}.ak-panel .cl-ghs svg{width:36px!important;height:36px!important}.cl-bath{margin-top:6px}.cl-tollens-row{grid-template-columns:70px minmax(0,1fr);align-items:start;gap:10px;display:grid}.ak-panel svg.cl-mini{width:70px}.cl-steps{color:var(--sim-dim);margin:4px 0 6px;padding-left:20px;font-size:14.5px}.cl-steps li[data-done]{color:#9be3b0}.cl-reagents{grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:6px;margin:6px 0;display:grid}.cl-reagents .sim-btn{white-space:normal;justify-content:flex-start;gap:8px;padding:4px 8px;font-size:14.5px;line-height:1.3}.cl-swatch{border:1px solid #fff6;border-radius:50%;flex:none;width:14px;height:14px;display:inline-block}.ak-panel .cl-rack{max-width:560px;margin:8px auto 0}.cl-helper{cursor:pointer;align-items:center;gap:6px;min-height:40px;font-size:14.5px;display:inline-flex}.cl-helper input{width:20px;height:20px;accent-color:var(--accent)}.cl-table{border-collapse:collapse;width:100%;font-size:14.5px}.cl-table th,.cl-table td{text-align:left;border-bottom:1px solid #263448;padding:4px 6px}.cl-table .num{text-align:right}.cl-submit{border-top:1px solid #263448;margin-top:14px;padding-top:10px}.cl-h{margin:0 0 6px;font-size:17px}.cl-id-row{flex-wrap:wrap;align-items:center;gap:8px;margin:6px 0;display:flex}.cl-id-row>b{min-width:26px}.cl-select{min-height:40px;color:var(--sim-ink);font:inherit;background:#16212f;border:1px solid #33445a;border-radius:10px;flex:180px;max-width:100%;padding:0 8px;font-size:15px}.cl-bottom{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;display:grid}@media (width<=800px){.cl-bottom{grid-template-columns:minmax(0,1fr)}}.cl-bottom .nb td{white-space:normal;vertical-align:top;min-width:120px}.cl-shelf.codes{grid-template-columns:repeat(auto-fill,minmax(64px,1fr))}