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255, .1);--lab-fill-3: rgba(255, 255, 255, .08);--lab-fill-2: rgba(255, 255, 255, .06);--lab-fill: rgba(255, 255, 255, .05);--lab-fill-faint: rgba(255, 255, 255, .04);--lab-glint: rgba(255, 255, 255, .35);--lab-edge: rgba(150, 176, 214, .28);--lab-edge-strong: rgba(150, 176, 214, .4);--lab-menu: rgba(38, 50, 80, .92);--lab-tooltip: rgba(20, 28, 48, .82);--lab-shadow: rgba(0, 0, 0, .4);--lab-scrim-092: rgba(9, 14, 26, .92);--lab-scrim-085: rgba(9, 14, 26, .85);--lab-scrim-078: rgba(9, 14, 26, .78);--lab-scrim-075: rgba(9, 14, 26, .75);--lab-scrim-072: rgba(9, 14, 26, .72)}@media(prefers-color-scheme:light){:root:not([data-theme=dark]) .chemlab-page{--lab-ground: #eef1f6;--lab-glass-shine: .55;--lab-glass-shine-soft: .45;--lab-glass-bore: 1;--lab-glass-bore-fill: url(#chemlab-bore-shade);--lab-glass-lip: .72;--lab-therm-ink: #33425a;--lab-therm-glass: #ffffff;--lab-therm-edge: #8d9cb5;--lab-bench-bg: #f4f7fb;--lab-bench-bg-low: #e6ecf4;--lab-bench-line: #c2cddd;--lab-accent-amber: #8a5a09;--lab-accent-lime: #3f6d0c;--lab-accent-coral: #b3311a;--lab-accent-green: #2f7d5b;--lab-accent-green-bg: #d8efe3;--lab-heat-cold: #2f78bd;--lab-heat-warm: #c07a06;--lab-heat-hot: #c8341c;--lab-on-accent-green: #14402d;--lab-ground-veil: rgba(238, 241, 246, .72);--lab-ink: #16202e;--lab-ink-2: #243244;--lab-ink-3: #33425a;--lab-ink-muted: #6b7a90;--lab-panel: #ffffff;--lab-line-strong: rgba(22, 32, 46, .16);--lab-line: rgba(22, 32, 46, .13);--lab-fill-3: rgba(22, 32, 46, .07);--lab-fill-2: rgba(22, 32, 46, .055);--lab-fill: rgba(22, 32, 46, .045);--lab-fill-faint: rgba(22, 32, 46, .035);--lab-glint: rgba(255, 255, 255, .75);--lab-edge: rgba(22, 32, 46, .18);--lab-edge-strong: rgba(22, 32, 46, .28);--lab-menu: rgba(255, 255, 255, .97);--lab-tooltip: rgba(255, 255, 255, .94);--lab-shadow: rgba(22, 32, 46, .16);--lab-scrim-092: rgba(248, 250, 253, .92);--lab-scrim-085: rgba(248, 250, 253, .85);--lab-scrim-078: rgba(248, 250, 253, .78);--lab-scrim-075: rgba(248, 250, 253, .75);--lab-scrim-072: rgba(248, 250, 253, .72)}}:root[data-theme=light] .chemlab-page{--lab-ground: #eef1f6;--lab-glass-shine: .55;--lab-glass-shine-soft: .45;--lab-glass-bore: 1;--lab-glass-bore-fill: url(#chemlab-bore-shade);--lab-glass-lip: .72;--lab-therm-ink: #33425a;--lab-therm-glass: #ffffff;--lab-therm-edge: #8d9cb5;--lab-bench-bg: #f4f7fb;--lab-bench-bg-low: #e6ecf4;--lab-bench-line: #c2cddd;--lab-accent-amber: #8a5a09;--lab-accent-lime: #3f6d0c;--lab-accent-coral: #b3311a;--lab-accent-green: #2f7d5b;--lab-accent-green-bg: #d8efe3;--lab-heat-cold: #2f78bd;--lab-heat-warm: #c07a06;--lab-heat-hot: #c8341c;--lab-on-accent-green: #14402d;--lab-ground-veil: rgba(238, 241, 246, .72);--lab-ink: #16202e;--lab-ink-2: #243244;--lab-ink-3: #33425a;--lab-ink-muted: #6b7a90;--lab-panel: #ffffff;--lab-line-strong: rgba(22, 32, 46, .16);--lab-line: rgba(22, 32, 46, .13);--lab-fill-3: rgba(22, 32, 46, .07);--lab-fill-2: rgba(22, 32, 46, .055);--lab-fill: rgba(22, 32, 46, .045);--lab-fill-faint: rgba(22, 32, 46, .035);--lab-glint: rgba(255, 255, 255, .75);--lab-edge: rgba(22, 32, 46, .18);--lab-edge-strong: rgba(22, 32, 46, .28);--lab-menu: rgba(255, 255, 255, .97);--lab-tooltip: rgba(255, 255, 255, .94);--lab-shadow: rgba(22, 32, 46, .16);--lab-scrim-092: rgba(248, 250, 253, .92);--lab-scrim-085: rgba(248, 250, 253, .85);--lab-scrim-078: rgba(248, 250, 253, .78);--lab-scrim-075: rgba(248, 250, 253, .75);--lab-scrim-072: rgba(248, 250, 253, .72)}:root .chemlab-scene-wrap[data-bench-theme=dark]{--lab-ground: #0b1220;--lab-glass-shine: .2;--lab-glass-shine-soft: .14;--lab-glass-bore: .14;--lab-glass-bore-fill: #000;--lab-glass-lip: .45;--lab-therm-ink: #c6d3e8;--lab-therm-glass: #1d2740;--lab-therm-edge: #5a6c92;--lab-bench-bg: #151d33;--lab-bench-bg-low: #0f1626;--lab-bench-line: #33405e;--lab-accent-amber: #ffcf7a;--lab-accent-lime: #7ed321;--lab-accent-coral: #ff9a7a;--lab-accent-green: #3f9c73;--lab-accent-green-bg: #2d6a4f;--lab-heat-cold: #4f9de0;--lab-heat-warm: #ffb020;--lab-heat-hot: #ff5a3d;--lab-on-accent-green: var(--lab-ink);--lab-ground-veil: rgba(10, 16, 30, .72);--lab-ink: #e9edf9;--lab-ink-2: #dce6f5;--lab-ink-3: #cdd6ee;--lab-ink-muted: #7c8aa8;--lab-panel: #141b2c;--lab-line-strong: rgba(255, 255, 255, .12);--lab-line: rgba(255, 255, 255, .1);--lab-fill-3: rgba(255, 255, 255, .08);--lab-fill-2: rgba(255, 255, 255, .06);--lab-fill: rgba(255, 255, 255, .05);--lab-fill-faint: rgba(255, 255, 255, .04);--lab-glint: rgba(255, 255, 255, .35);--lab-edge: rgba(150, 176, 214, .28);--lab-edge-strong: rgba(150, 176, 214, .4);--lab-menu: rgba(38, 50, 80, .92);--lab-tooltip: rgba(20, 28, 48, .82);--lab-shadow: rgba(0, 0, 0, .4);--lab-scrim-092: rgba(9, 14, 26, .92);--lab-scrim-085: rgba(9, 14, 26, .85);--lab-scrim-078: rgba(9, 14, 26, .78);--lab-scrim-075: rgba(9, 14, 26, .75);--lab-scrim-072: rgba(9, 14, 26, .72)}:root .chemlab-scene-wrap[data-bench-theme=light]{--lab-ground: #eef1f6;--lab-glass-shine: .55;--lab-glass-shine-soft: .45;--lab-glass-bore: 1;--lab-glass-bore-fill: url(#chemlab-bore-shade);--lab-glass-lip: .72;--lab-therm-ink: #33425a;--lab-therm-glass: #ffffff;--lab-therm-edge: #8d9cb5;--lab-bench-bg: #f4f7fb;--lab-bench-bg-low: #e6ecf4;--lab-bench-line: #c2cddd;--lab-accent-amber: #8a5a09;--lab-accent-lime: #3f6d0c;--lab-accent-coral: #b3311a;--lab-accent-green: #2f7d5b;--lab-accent-green-bg: #d8efe3;--lab-heat-cold: #2f78bd;--lab-heat-warm: #c07a06;--lab-heat-hot: #c8341c;--lab-on-accent-green: #14402d;--lab-ground-veil: rgba(238, 241, 246, .72);--lab-ink: #16202e;--lab-ink-2: #243244;--lab-ink-3: #33425a;--lab-ink-muted: #6b7a90;--lab-panel: #ffffff;--lab-line-strong: rgba(22, 32, 46, .16);--lab-line: rgba(22, 32, 46, .13);--lab-fill-3: rgba(22, 32, 46, .07);--lab-fill-2: rgba(22, 32, 46, .055);--lab-fill: rgba(22, 32, 46, .045);--lab-fill-faint: rgba(22, 32, 46, .035);--lab-glint: rgba(255, 255, 255, .75);--lab-edge: rgba(22, 32, 46, .18);--lab-edge-strong: rgba(22, 32, 46, .28);--lab-menu: rgba(255, 255, 255, .97);--lab-tooltip: rgba(255, 255, 255, .94);--lab-shadow: rgba(22, 32, 46, .16);--lab-scrim-092: rgba(248, 250, 253, .92);--lab-scrim-085: rgba(248, 250, 253, .85);--lab-scrim-078: rgba(248, 250, 253, .78);--lab-scrim-075: rgba(248, 250, 253, .75);--lab-scrim-072: rgba(248, 250, 253, .72)}.app-main:has(>.chemlab-page){overflow:hidden}.chemlab-page{position:relative;height:100%;background:var(--lab-ground);color:var(--lab-ink);font-family:var(--bench-font);display:flex;flex-direction:column;overflow:hidden}.chemlab-page{--chemlab-panel-left-w: 190px}.chemlab-page{--chemlab-ui-scale: 1;--bench-accent: #10b981;--bench-head-bg: var(--lab-panel);--bench-head-line: var(--lab-line);--bench-head-ink: var(--lab-ink);--bench-head-muted: var(--lab-ink-muted);--pane-btn-ink: var(--lab-ink-muted);--pane-btn-ink-strong: var(--lab-ink);--pane-btn-hover: var(--lab-fill-faint);--pane-btn-line: var(--lab-line)}.chemlab-topbar,.chemlab-shelf-bar,.chemlab-side-panel,.chemlab-clear-bench,.chemlab-bench-btn,.chemlab-fullscreen-btn{zoom:var(--chemlab-ui-scale)}.chemlab-page:fullscreen{width:100vw;height:100dvh}.chemlab-page[data-full=true]{position:fixed;inset:0;z-index:2147483647;width:100vw;height:100dvh}.chemlab-topbar{position:relative;display:flex;align-items:center;gap:12px;padding:10px 16px;flex:0 0 auto;background:var(--lab-scrim-075);backdrop-filter:blur(6px);z-index:6}.chemlab-title{position:absolute;left:50%;transform:translate(-50%);display:inline-flex;align-items:center;gap:8px;font-size:23px;font-weight:700;letter-spacing:-.01em;color:var(--lab-ink);pointer-events:none}.chemlab-body{position:relative;flex:1 1 auto;min-height:0;display:flex}.chemlab-scene-wrap{flex:1 1 auto;position:relative}.chemlab-beaker-label{font-family:inherit;font-size:calc(10px * var(--chemlab-text-scale, 1));color:var(--lab-ink);background:var(--lab-ground-veil);padding:2px 6px 2px 24px;min-height:34px;box-sizing:border-box;display:flex;align-items:center;border-radius:6px;white-space:normal;width:fit-content;max-width:100%;margin-left:auto;text-align:right;line-height:1.3;pointer-events:none}.chemlab-beaker-empty{color:var(--lab-ink-muted)}.chemlab-beaker-loading{color:var(--lab-accent-lime)}.chemlab-beaker-label-light{color:var(--lab-ink-2);background:var(--lab-scrim-072);border:1px solid var(--lab-edge)}.chemlab-beaker-label-light .chemlab-beaker-empty{color:var(--lab-ink-muted)}.chemlab-beaker-label-light .chemlab-beaker-loading{color:var(--lab-accent-lime)}.chemlab-reaction-card{display:inline-flex;flex-direction:column;gap:3px;width:auto;max-width:100%;box-sizing:border-box;position:relative;font-family:inherit;font-size:calc(9px * var(--chemlab-text-scale, 1));font-weight:600;color:var(--lab-ink-2);background:var(--lab-scrim-078);border:1px solid rgba(126,211,33,.35);border-radius:6px;padding:4px 6px 4px 20px;line-height:1.3;pointer-events:none}.chemlab-reaction-card-item{display:flex;align-items:flex-start;gap:4px;white-space:normal}.chemlab-reaction-card-item span:last-child{word-break:break-word}.chemlab-reaction-card-equation{font-size:calc(10px * var(--chemlab-text-scale, 1));font-weight:400;color:var(--lab-ink);padding-bottom:3px;margin-bottom:1px;border-bottom:1px solid rgba(126,211,33,.25)}.chemlab-block{position:relative;display:inline-block;pointer-events:none}.chemlab-block-slot-end{display:flex;justify-content:flex-end;pointer-events:none}.chemlab-block-minimise{position:absolute;top:2px;left:2px;width:14px;height:14px;padding:0;border:0;border-radius:4px;background:transparent;color:var(--lab-ink-muted);font:inherit;font-size:10px;line-height:1;cursor:pointer;pointer-events:auto}.chemlab-block-minimise:hover{background:var(--lab-fill-2);color:var(--lab-ink)}.chemlab-block-menu{position:absolute;pointer-events:auto;bottom:2px;left:2px;display:grid;place-items:center;width:14px;height:14px;padding:0;border:0;border-radius:4px;background:transparent;color:var(--lab-ink-muted);font-size:calc(11px * var(--chemlab-text-scale, 1));line-height:1;cursor:pointer}.chemlab-block-menu:hover{background:var(--lab-fill-2);color:var(--lab-ink)}.chemlab-block-handle{position:absolute;width:12px;height:12px;border-radius:3px;background:var(--lab-fill-3);opacity:0;cursor:move;pointer-events:auto;transition:opacity .12s}.chemlab-block:hover .chemlab-block-handle{opacity:.9}.chemlab-block-handle[data-corner=tr]{top:2px;right:2px}.chemlab-block-handle[data-corner=br]{bottom:2px;right:2px}.chemlab-block-icon{width:20px;height:20px;padding:0;border-radius:50%;border:1px solid var(--lab-edge-strong);background:var(--lab-scrim-085);color:var(--lab-ink);font:inherit;font-size:11px;line-height:1;cursor:pointer;pointer-events:auto}.chemlab-block-icon:hover{border-color:var(--lab-ink-muted)}.chemlab-block-icon-reaction{color:var(--lab-accent-lime)}.chemlab-reaction-card-swatch{width:7px;height:7px;border-radius:50%;flex:0 0 auto;border:1px solid var(--lab-glint)}.chemlab-context-menu{position:fixed;z-index:50;max-height:calc(100vh - 16px);overflow-y:auto;scrollbar-width:thin;background:var(--lab-panel);border:1px solid var(--lab-line-strong);border-radius:10px;box-shadow:0 8px 24px var(--lab-shadow);padding:6px;min-width:180px}.chemlab-context-menu-item{display:flex;align-items:center;gap:8px;width:100%;text-align:left;background:transparent;border:none;color:var(--lab-ink);font-size:13px;padding:8px 10px;border-radius:6px;cursor:pointer}.chemlab-context-menu-item:hover{background:var(--lab-fill-3)}.chemlab-context-menu-item:disabled{opacity:.4;cursor:default}.chemlab-context-menu-title{font-size:12px;font-weight:600;color:var(--lab-ink);margin:2px 10px 6px}.chemlab-context-menu-hint{font-size:11px;color:var(--lab-ink-muted);padding:2px 10px 4px;margin:0}.chemlab-context-menu-vessels{display:flex;gap:4px;padding:2px 6px 6px}.chemlab-context-menu-vessel{flex:1 1 0;display:flex;align-items:center;justify-content:center;background:var(--lab-fill);border:1px solid var(--lab-line);border-radius:8px;color:var(--lab-ink-3);font-size:16px;padding:6px 0;cursor:pointer}.chemlab-context-menu-vessel:hover{background:var(--lab-line-strong)}.chemlab-context-menu-vessel.active{background:var(--lab-accent-green-bg);border-color:var(--lab-accent-green);color:var(--lab-on-accent-green)}.chemlab-context-menu-divider{height:1px;background:var(--lab-line);margin:4px 6px}.chemlab-side-panel{width:300px;flex:0 0 auto;background:var(--lab-scrim-092);overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:16px}.chemlab-side-panel-left{border-right:1px solid var(--lab-fill-2);width:var(--chemlab-panel-left-w)}.chemlab-side-panel-right{border-left:1px solid var(--lab-fill-2);width:320px}.chemlab-section-title{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--lab-ink-muted);margin:0 0 8px}.chemlab-apparatus-group{margin-bottom:14px}.chemlab-apparatus-row{display:grid;grid-template-columns:repeat(2,1fr);gap:5px}.chemlab-apparatus-tile{min-width:0;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 2px;background:var(--lab-fill);border:1px solid var(--lab-line);border-radius:8px;color:var(--lab-ink-3);cursor:pointer;transition:background .15s}.chemlab-apparatus-tile:hover:not(:disabled){background:var(--lab-line-strong)}.chemlab-apparatus-tile.active{background:var(--lab-accent-green-bg);border-color:var(--lab-accent-green);color:var(--lab-on-accent-green)}.chemlab-apparatus-tile:disabled{opacity:.35;cursor:default}.chemlab-apparatus-label{font-size:9.5px;line-height:1.15;text-align:center}.chemlab-apparatus-group .chemlab-empty-hint{margin:6px 0 0}.chemlab-controls-row{display:flex;gap:8px;flex-wrap:wrap}.chemlab-apparatus-row>.chemlab-dip-menu,.chemlab-apparatus-row>.chemlab-rod-note{grid-column:1 / -1}.chemlab-btn{background:var(--lab-fill-2);border:1px solid var(--lab-line);color:var(--lab-ink);border-radius:10px;padding:8px 12px;font-size:13px;cursor:pointer;transition:background .15s}.chemlab-btn:hover{background:var(--lab-line-strong)}.chemlab-btn.active{background:var(--lab-accent-green-bg);border-color:var(--lab-accent-green)}.chemlab-btn:disabled{opacity:.4;cursor:default}.chemlab-temp-scale{margin-bottom:4px}.chemlab-temp-scale.disabled{opacity:.5}.chemlab-temp-scale-track{position:relative;height:6px;border-radius:999px;background:linear-gradient(90deg,var(--lab-heat-cold) 0%,var(--lab-heat-warm) 55%,var(--lab-heat-hot) 100%);margin:4px 11px 10px}.chemlab-temp-thumb{position:absolute;top:50%;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--lab-panel);transform:translate(-50%,-50%);transition:left .2s ease}.chemlab-temp-scale-stops{display:flex;justify-content:space-between}.chemlab-temp-stop{background:transparent;border:none;color:var(--lab-ink-muted);font-size:11px;display:flex;flex-direction:column;align-items:center;gap:2px;cursor:pointer;padding:2px 4px}.chemlab-temp-stop.active{color:var(--lab-ink);font-weight:600}.chemlab-temp-stop:disabled{cursor:default}.chemlab-temp-stop-icon{font-size:16px}.chemlab-dip-menu{max-height:190px;overflow-y:auto;scrollbar-width:thin}.chemlab-dip-item{flex:0 0 auto;width:62px;display:flex;flex-direction:column;align-items:center;gap:2px;padding:5px 3px;background:var(--lab-fill);border:1px solid var(--lab-line);border-radius:8px;color:var(--lab-ink-3);cursor:pointer}.chemlab-dip-item:hover{background:var(--lab-line-strong)}.chemlab-dip-label{font-size:10px;max-width:56px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.chemlab-dip-label .katex{font-size:1em;color:inherit}.chemlab-add-menu{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px;padding:8px;background:var(--lab-fill-faint);border:1px solid var(--lab-line);border-radius:10px}.chemlab-shelf-bar{flex:0 0 auto;background:var(--lab-scrim-085);border-bottom:1px solid var(--lab-fill-2);backdrop-filter:blur(6px);padding:8px 16px;z-index:5}.chemlab-shelf-stack{--chemlab-shelf-titlew: calc( var(--chemlab-panel-left-w) - 16px - var(--chemlab-shelf-arroww) - var(--chemlab-shelf-gap) * 2);--chemlab-shelf-gap: 10px;--chemlab-shelf-rowgap: 6px;--chemlab-shelf-arroww: 24px;--chemlab-shelf-gutter: calc( var(--chemlab-shelf-titlew) + var(--chemlab-shelf-gap) + var(--chemlab-shelf-arroww));display:flex;flex-direction:column;gap:var(--chemlab-shelf-rowgap)}.chemlab-shelf{display:flex;align-items:center;gap:var(--chemlab-shelf-gap)}.chemlab-shelf-title{flex:0 0 auto;width:var(--chemlab-shelf-titlew);font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--lab-ink-3)}.chemlab-shelf-search-icon{position:absolute;font-size:11px;line-height:1;pointer-events:none;opacity:.7}.chemlab-shelf-count{flex:0 0 auto;font-size:9px;color:var(--lab-ink-muted);white-space:nowrap}.chemlab-shelf-row{display:flex;flex:1 1 auto;min-width:0;gap:10px;overflow-x:auto;padding:2px 2px 10px;border-bottom:2px solid rgba(150,110,70,.35);scrollbar-width:thin;scrollbar-color:var(--lab-edge-strong) transparent}.chemlab-shelf-row::-webkit-scrollbar{height:6px}.chemlab-shelf-row::-webkit-scrollbar-track{background:transparent}.chemlab-shelf-row::-webkit-scrollbar-thumb{background:var(--lab-edge-strong);border-radius:3px}.chemlab-shelf-row::-webkit-scrollbar-thumb:hover{background:#96b0d699}.chemlab-shelf-arrow[data-idle]{visibility:hidden}.chemlab-shelf-arrow{flex:0 0 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