/* The experiment, its tools and evidence share one classroom workspace. */
:root{--inquiry-surface:#fffef6;--inquiry-ink:#214c50;--inquiry-touch:48px}.experiment-shell{background-attachment:fixed}.experiment-shell .topbar{height:60px}.experiment-main{max-width:1600px;padding:14px 24px 24px}.experiment-heading{margin-bottom:10px}.experiment-heading h1{font-size:clamp(23px,2.3vw,32px)}.experiment-heading .eyebrow{display:none}.activity-progress{margin:0 0 10px;gap:8px}.activity-progress li{font-size:14px;padding:4px 10px 4px 4px}.scene-workspace{display:flex;flex-direction:column;gap:10px}.compact-guide{display:flex;align-items:center;gap:10px;width:100%;background:#fffdf2ed;border:1px solid #d5decf;border-radius:14px;padding:2px 12px;min-height:52px}.compact-guide .buddy-pose{width:50px;height:48px;flex-shrink:0;margin:0}.compact-guide p{font-size:16px;line-height:1.5;margin:0}.compact-guide .hint-button{margin:0 0 0 auto;padding:4px 10px;min-width:72px;min-height:44px;border:0;font-size:15px}.activity-area{width:100%}.activity{grid-template-columns:minmax(0,1fr) 270px;gap:16px}.activity-scene{min-height:370px;padding:18px;background:var(--inquiry-surface)}.activity-tools{padding:18px;gap:12px;background:var(--inquiry-surface)}.activity-tools h3,.control-panel h2{font-size:21px}.activity-tools p,.activity-tools .btn,.control-panel .btn{font-size:17px;line-height:1.5}.activity-stage-caption{font-size:15px;margin-bottom:10px;padding:6px;background:#edf4ea}.activity-status{font-size:16px;padding:10px}.btn,.activity-button{min-height:48px;border-radius:13px;padding:10px 16px;white-space:normal}.activity-tools details,.control-panel details{font-size:14px;line-height:1.6}.activity-tools summary,.control-panel summary{min-height:44px;cursor:pointer;display:flex;align-items:center;color:#396b5f}.activity-tools details p{font-size:14px}.time-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;border-top:1px solid #cfddd2;margin-top:14px;padding-top:12px}.time-controls .btn{font-size:16px;padding:9px 14px}.time-mode,.record-mode{font-size:14px;color:#356f60;background:#e2f2eb;border-radius:8px;padding:7px 10px}.record-mode{background:#fff1d5;color:#795422;font-weight:700}.inquiry-options{display:flex;gap:8px;flex-wrap:wrap}.inquiry-options .btn{flex:1;font-size:16px;min-width:110px}.inquiry-options .selected,.selected{outline-offset:-2px}.activity-tools>.inquiry-options{flex-direction:column}.pour-workspace{display:flex;align-items:center;gap:20px;min-height:300px}.pour-jug{border:2px solid #d6c494;background:#fff8df;border-radius:18px;width:150px;flex-shrink:0;touch-action:none;cursor:grab;z-index:2;position:relative}.pour-jug .prop-art{width:130px;height:130px}.pour-jug>span:last-child{display:block;padding:6px;font-size:16px}.pour-vessels{display:grid;grid-template-columns:1fr 1fr;gap:18px;flex:1}.pour-vessel{border:2px dashed #b7cfc5;background:#f0f7f0;border-radius:20px;padding:10px;min-width:0;color:#25525a;font:inherit;cursor:pointer}.pour-vessel.selected{border-style:solid;border-color:#298b7f;background:#e6f4ea}.pour-vessel svg{width:100%;height:210px;display:block}.pour-vessel span{display:block;font-size:13px;margin-top:6px}.jug-remaining{margin:0;text-align:center;font-size:14px;color:#54736f}.inquiry-cardbank{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.inquiry-cardbank>button{min-width:0;position:relative;touch-action:none;border:1px solid #c6dacf;background:#f2f7ed;border-radius:13px;padding:8px;cursor:pointer;color:#204d55}.inquiry-cardbank .prop-art{display:block;width:70px;height:70px;margin:auto}.inquiry-cardbank span{display:block;font-size:13px;line-height:1.5;word-break:keep-all}.inquiry-cardbank .selected{background:#dcefe4;border:2px solid #378a70}.sort-observation{text-align:center;padding:14px}.sort-observation>.prop-art{display:block;width:125px;height:125px;margin:auto}.sort-observation .beaker{height:120px;width:110px}.sort-observation .prop-art{width:100px;height:100px}.sort-choices{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.sort-choices button{min-height:60px;border:2px dashed #a4c6b7;border-radius:14px;font:inherit;background:#f3f8ee;color:#1e5455;cursor:pointer}.sort-choices .selected{background:#cfe8dd;border-style:solid}.trace-pair{display:flex;gap:20px;justify-content:center;padding:16px}.trace-pair span{padding:20px;border-radius:16px;background:#ede2c8;font-size:15px}.trace-pair .wet-trace{background:#87bdc9}.record-pair{display:flex;justify-content:center;gap:14px;min-width:0}.record-pair>*{flex:1;min-width:0}.record-pair svg{width:100%;max-height:210px;display:block}.record-pair b{display:block;font-size:13px;margin-bottom:6px;text-align:center}.record-pair figure{margin:0;text-align:center}.record-pair figcaption{font-size:14px;line-height:1.5}.picture-records{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}.picture-record{flex:1;min-width:100px;border:1px solid #d9d8bb;border-radius:13px;background:#fff9e8;padding:10px;color:#2d5e56;font:inherit;font-size:14px;text-align:center;cursor:pointer}.picture-record>svg{height:90px;width:100%}.picture-record .record-pair svg{height:70px}.picture-record span{display:block;padding-top:6px}.picture-record.selected{outline:3px solid #3d8e76;background:#e5f2e6}.record-comparison{display:flex;gap:16px}.record-comparison figure{flex:1;min-width:0;margin:0}.record-comparison figcaption{text-align:center;padding-top:10px}.record-slider{display:flex;align-items:center;gap:14px;font-size:16px;margin:14px 0}.record-slider input{flex:1;min-width:50px;min-height:48px;accent-color:#248575}.activity-drawing-pair canvas{height:auto;aspect-ratio:500/310;min-height:160px;width:100%;touch-action:none}.activity-drawing-pair h3{font-size:17px}.empty-guide{text-align:center;font-size:18px}.activity-wipe-cup{touch-action:none}.activity-wipe-cup .can-art{height:250px}.activity-dew-pair h3{font-size:18px}.activity-dew-pair p{font-size:15px}.evidence-pictures{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.explanation-board{margin-top:18px}.explanation-board h3{font-size:19px}.transfer-pair{display:flex;justify-content:center;gap:28px;margin-top:16px}.transfer-pair>div{width:40%;text-align:center}.transfer-pair h3{font-size:16px}.transfer-pair svg{height:145px;width:100%}.freeze-snapshots{display:flex;gap:12px;margin-top:10px}.freeze-snapshots figure{flex:1;text-align:center;margin:0;font-size:13px}.freeze-snapshots svg{height:90px;width:100%}.freeze-snapshots+.activity-records{display:none}.activity-3 .activity-records{display:none}.activity-freeze-rig{min-height:240px}.activity-freeze-rig .beaker{height:220px}.activity-measure-cup{touch-action:none}.activity-heating-pair .beaker{height:170px}.activity-heating-pair h3{font-size:17px}.activity-observation-tools{margin-top:8px}.lens-window{padding:12px;background:#eff8f5;border:3px solid #659d95;border-radius:18px;margin-top:12px;display:grid;grid-template-columns:150px 1fr;align-items:center;gap:10px}.lens-window>b{font-size:16px}.lens-window>.beaker{height:120px;width:100%;max-width:250px}.lens-window>.record-pair .beaker{height:120px}.lens-window>p{font-size:14px;grid-column:1/-1;margin:0}.workshop-layout,.final-layout{grid-template-columns:minmax(0,1fr) 270px;gap:16px}.lab-stage{min-height:370px;padding:16px;background:var(--inquiry-surface)}.workshop-layout #workbench,.final-layout #workbench{width:100%;max-height:380px;display:block;touch-action:none}.part{cursor:grab}.part-label{font-size:19px;stroke-width:4px}.loss-trail{stroke:#c38b36;stroke-width:4px;stroke-dasharray:6 6;fill:none}.flow-label{font-size:16px;fill:#915f25}.trial-meter strong{font-size:27px}.trial-meter p{font-size:16px}.design-comparison{display:flex;gap:12px;margin-top:16px}.design-comparison figure{flex:1;min-width:0;margin:0;border:1px solid #cbd9ca;border-radius:12px;padding:8px}.design-comparison svg{height:190px;width:100%}.design-comparison figcaption{font-size:16px}.control-panel{padding:18px;gap:12px!important}.control-panel input[type=range]{min-height:44px;accent-color:#2c897a;max-width:100%}.evidence-choice{display:flex;gap:10px;margin-top:10px}.diagnosis-readout{font-size:18px;color:#286e6b}.notebook-pictures .picture-records{margin-bottom:18px}.notebook-pictures .picture-record{pointer-events:none}dialog{max-width:min(1050px,94vw)}#toast{bottom:16px;font-size:16px}.science-detail p{font-size:14px!important}.activity-6 .activity-tools>.activity-status{display:none}.activity-5 .activity-tools h3{font-size:20px}
@media(max-width:1100px){.experiment-main{padding:12px 16px 20px}.activity,.workshop-layout,.final-layout{grid-template-columns:minmax(0,1fr) 240px;gap:12px}.activity-scene{padding:14px}.activity-tools{padding:14px}.inquiry-cardbank{grid-template-columns:repeat(3,1fr)}.inquiry-cardbank .prop-art{width:48px;height:48px}.pour-workspace{gap:10px}.pour-jug{width:105px}.pour-jug .prop-art{width:95px;height:95px}.pour-vessels{gap:10px}.pour-vessel svg{height:180px}.activity-tools .btn{padding:9px 11px;font-size:16px}.activity-progress li{font-size:13px}.activity-dew-pair{gap:12px}.lens-window{grid-template-columns:120px 1fr}.experiment-heading h1{font-size:24px}}
@media(max-width:760px){.activity,.workshop-layout,.final-layout{grid-template-columns:1fr}.experiment-main{padding:10px 12px}.experiment-heading h1{font-size:22px}.activity-progress{flex-wrap:wrap}.compact-guide p{font-size:15px}.compact-guide .buddy-pose{width:40px}.activity-tools{display:flex}.pour-workspace{flex-direction:column}.pour-jug{width:120px;display:flex;align-items:center}.pour-jug .prop-art{width:65px;height:65px}.pour-vessels{width:100%}.pour-vessel svg{height:150px}.picture-records{gap:6px}.picture-record{padding:6px}.record-comparison{flex-direction:column}.record-comparison .record-pair svg{height:130px}.activity-drawing-pair canvas{min-height:120px}.time-controls .btn{font-size:15px;padding:8px 12px}.time-mode{display:none}.evidence-pictures{gap:6px}.evidence-pictures .picture-record{min-width:0;font-size:13px}.lens-window{grid-template-columns:1fr}.lens-window .beaker{margin:auto}.activity-range input{min-height:48px}.scene-workspace{gap:8px}.workshop-layout .control-panel{display:flex}.control-panel{width:100%}.topbar .brand{display:none}.topbar{gap:4px}.topbar-right{gap:4px}.design-comparison{flex-direction:column}.design-comparison svg{height:220px}}
@media(min-width:761px) and (max-height:760px){.experiment-shell .topbar{height:56px}.experiment-heading{margin-bottom:6px}.experiment-heading h1{font-size:23px}.activity-progress{margin-bottom:6px}.compact-guide{min-height:44px}.compact-guide .buddy-pose{height:38px;width:40px}.activity-scene{padding:12px}.activity-stage-caption{margin-bottom:6px}.pour-workspace{min-height:250px}.workshop-layout #workbench{max-height:300px}.activity-wipe-cup .can-art{height:210px}.activity-drawing-pair canvas{min-height:120px}.activity-tools{gap:8px}.activity-tools h3{font-size:19px}.activity-tools p{font-size:16px}}

.pipe-replay{display:flex;justify-content:center;gap:32px;margin-top:15px}.pipe-replay figure{margin:0;text-align:center;font-size:14px}.replay-tank{height:120px;width:95px;border:4px solid #80a7a5;border-top:0;position:relative;overflow:hidden;background:#f0f8f7}.replay-tank>div{position:absolute;bottom:0;width:100%;background:#91d2e8}.replay-tank>span{position:absolute;left:0;width:100%;border-top:2px dashed #936c25;font-size:11px}.notebook-pictures .picture-record{cursor:default}

.shape-proof{display:block;width:100%;height:150px;font-size:16px}.activity-6 .activity-heating-pair{gap:20px}.activity-6 .activity-heating-pair>div{max-width:250px}.heat-records p{font-size:14px!important;margin:5px 0}.activity-6 .lens-window{margin-top:8px;padding:8px}.activity-6 .lens-window>.beaker{height:95px}.activity-6 .time-controls{margin-top:8px;padding-top:8px}.activity-6 .activity-heating-pair .beaker{height:160px}.activity-6 .activity-heating-pair p{font-size:14px;margin:3px}.activity-6 .activity-heater{font-size:13px}

.activity-freeze-rig{min-height:0;gap:14px}.activity-freeze-rig>.activity-target{max-width:260px;padding:5px}.activity-measure-cup>.beaker{height:170px;width:180px}.activity-scale{padding:4px;border-width:3px;gap:0}.activity-scale b{font-size:22px}.activity-scale small{display:none}.activity-tool-tray .activity-prop{height:65px;width:65px}.activity-tool-tray{max-width:140px;gap:8px}.activity-tool-tray .activity-object{padding:5px}.freeze-snapshots{margin-top:8px}.freeze-snapshots svg{height:55px}.freeze-snapshots figcaption{font-size:12px}.activity-3 .activity-tools>h3{display:none}.activity-3 .activity-tools>.activity-status{font-size:14px}.activity-3 .activity-scene>.btn{min-height:44px;padding:6px 12px}.activity-3 .activity-two{grid-template-columns:1fr}.activity-3 .activity-two .activity-button{min-height:44px}.activity-4 .activity-pipe-test{min-height:0;padding:0 20px;gap:14px}.activity-4 .activity-pipe-tank{height:180px;width:115px}.activity-4 .activity-pipe-cross{height:150px;width:125px}.activity-4 .activity-trials{margin-top:10px}.activity-4 .activity-trial{padding:6px;min-width:95px}.activity-4 .activity-trial span,.activity-4 .activity-trial small{font-size:12px}.activity-4 .activity-scene>.btn{min-height:44px;margin-top:8px}.activity-4 .pipe-replay{margin-top:8px}.activity-4 .replay-tank{height:80px;width:100px}.activity-4 .activity-tools>p{display:none}.activity-4 .activity-tools>h3{font-size:18px}.activity-4 .activity-test-result p{margin:5px 0}.activity-4 .activity-test-result h3{font-size:17px}.activity-3 .activity-before-scale .beaker{height:170px}.activity-3 .activity-before-scale{gap:6px}.activity-3 .activity-empty-scale{padding:20px 10px}

.activity-5 .activity-drawing-pair canvas{height:180px;min-height:120px}.activity-5 .picture-record .record-pair svg{height:45px}.activity-5 .picture-record{padding:6px}.activity-5 .picture-records{margin-top:8px}.activity-7 .activity-tools>.activity-status{display:none}.activity-4 .activity-trial{min-height:65px;gap:2px;display:grid;grid-template-columns:auto auto;column-gap:10px;align-items:center}.activity-4 .activity-trial b{font-size:16px}.activity-4 .activity-trial small{font-size:11px}.classroom-making{background:#eff7ed;padding:12px;border-radius:15px;margin:15px 0;font-size:16px}.classroom-making summary{cursor:pointer;min-height:44px;display:flex;align-items:center}.classroom-making p{font-size:16px!important;line-height:1.6}

.lens-actions .lens-tool{flex:none;min-width:80px;min-height:48px;padding:2px 8px;flex-direction:row;gap:3px;font-size:13px}.lens-tool .prop-art{width:40px;height:40px}.lens-actions{align-items:center}.activity-6 .activity-heating-pair{justify-items:center}.activity-6 .activity-heating-pair>div{width:100%}.activity-5 .activity-tools .science-detail{margin-top:-4px}

.activity-7 .activity-dew-pair{margin:0;gap:20px}.activity-7 .activity-wipe-cup{min-height:0}.activity-7 .activity-wipe-cup .can-art{height:165px;width:180px}.activity-7 .activity-dew-pair h3{margin:5px}.activity-7 .activity-dew-pair p{margin:6px;font-size:14px}.activity-7 .picture-record>svg{height:55px}.activity-7 .picture-record{padding:6px}.activity-7 .picture-records{margin-top:8px}.activity-7 .time-controls{margin-top:8px;padding-top:8px}.activity-7 .activity-seal{font-size:11px;padding:5px}.activity-7 .activity-tools details[open]{max-height:180px;overflow:auto}

.sealed-evidence{position:relative}.sealed-evidence svg{width:100%;height:80px}.sealed-evidence>b{position:absolute;left:25%;right:25%;top:10px;font-size:10px;background:#edd69c}.evidence-pictures .record-pair svg{height:80px}.activity-8 .evidence-pictures .picture-record{padding:6px}.activity-8 .explanation-board{margin-top:10px}.activity-8 .transfer-pair{margin-top:10px}.activity-8 .transfer-pair svg{height:100px}.activity-8 .time-controls{margin-top:8px;padding-top:8px}.activity-7 .activity-dew-pair{min-height:0}.activity-7 .activity-wipe-cup{margin:0 auto}.activity-7 .activity-dew-pair>div{padding:0}.activity-7 .picture-records{padding-bottom:0}

.control-panel{gap:8px!important}.control-panel h2{font-size:19px;margin:0 0 4px}.control-panel .range-label{margin:0;font-size:16px}.control-panel details{padding-top:0;margin:0}.control-panel .btn{font-size:16px;padding:8px 12px}.part-label{font-size:24px}.design-comparison{margin-top:8px}.design-comparison svg{height:220px}.design-comparison+.inquiry-options{margin-top:10px}.trial-meter{margin-top:8px}.trial-meter p{margin:3px}.trial-meter strong{font-size:23px}.lab-stage .stage-tag{font-size:14px}.workshop-layout #workbench{max-height:320px}

.final-layout #workbench{max-height:250px}.final-layout .observation-strip{margin:8px 0;padding:8px;font-size:16px}.final-layout .diagnosis-readout{margin:4px 0;font-size:15px}.final-layout .evidence-choice{margin-top:8px}.final-layout .control-panel>h2{font-size:18px}.diagnosis-done .lab-stage>.inquiry-options,.diagnosis-done .lab-stage>.evidence-choice{display:none}.final-layout .control-panel .range-label{font-size:15px}