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/* The experiment and the encyclopedia share one monochrome material world. */
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@media(max-width:600px){.field-hud .measure-label{font-size:10px}.frame-controls{gap:12px;bottom:73px}.frame-controls a,.frame-controls button{font-size:10px}.finding{bottom:165px}.laboratory{min-height:1150px;padding-top:120px}.lab-copy{max-width:100%}.lab-copy h2{font-size:35px}.lab-copy>p{font-size:13px}.lab-copy .formula-note{margin-bottom:14px}.formula{font-size:31px;margin-top:15px}.lab-copy label{margin-top:14px}.lab-copy .lab-question{margin-bottom:7px}.lab-copy .model-note{font-size:10px;max-width:48ch}.laboratory .lab-results{margin-top:12px;padding-top:10px}.encyclopedia-columns{grid-template-columns:1fr;gap:35px;padding:30px 0 45px}.portrait img{height:300px}.encyclopedia-entry h3{font-size:27px}.encyclopedia-entry p{font-size:17px}.earth-plate svg{width:calc(100% + 32px);margin-left:-16px}.plate-heading{font-size:9px;gap:12px}.earth-plate figcaption{font-size:13px}.costume-plate{grid-template-columns:1fr;gap:35px;padding-top:40px}.costume-plate h2{font-size:39px}.costume-plate figure{grid-row:2}.costume-plate p,.costume-plate li{font-size:15px}.costume-plate img{max-height:580px}.lab-copy{position:relative;z-index:2;background:rgba(8,8,8,.94);padding-bottom:10px}}

.laboratory{padding-top:125px}.lab-copy{background:none}
@media(max-width:600px){.laboratory{min-height:100svh;padding-top:115px}.lab-copy h2{font-size:30px}.lab-copy>p{font-size:12px;margin:10px 0}.formula{font-size:28px;margin:12px 0 5px}.lab-copy .formula-note{font-size:10px;margin:6px 0 12px}.lab-copy label{font-size:12px;margin-top:9px}.lab-copy input{height:24px;margin:3px 0 0}.scale-label{font-size:10px}.lab-results{font-size:12px;display:flex;justify-content:space-between;gap:14px;align-items:center}.lab-results strong{font-size:17px}body.in-lab #step-motion{top:auto;bottom:120px;right:24px}}

@media(max-width:600px){.frame-controls a,.frame-controls button,.field-hud .measure-label{font-size:12px}.field-hud .measure-label{max-width:185px}.observation-count .measure-label{max-width:115px}.earth-plate svg text{font-size:24px}.earth-plate svg text:last-child{font-size:20px}.earth-plate svg text:nth-last-child(2){font-size:19px}.field-hud .measure{gap:8px}.frame-controls{bottom:83px}body.in-lab #step-motion{bottom:143px}}

@media(max-width:600px){.lab-parameter{display:grid;grid-template-columns:135px 1fr;gap:0 15px;align-items:center;margin-top:12px}.lab-parameter label{display:block;margin:0;font-size:12px;grid-row:1/3}.lab-parameter output{display:block;font-size:12px;margin-top:3px}.lab-parameter input{grid-column:2;margin:0}.lab-parameter .scale-label{grid-column:2;font-size:10px}.lab-copy .formula-note{margin-bottom:16px}.lab-copy>p{max-width:42ch}.lab-results{margin-top:18px!important}}
@media(min-width:601px) and (max-height:850px){.laboratory{padding-top:105px}.lab-copy h2{font-size:33px}.lab-copy>p{font-size:12px;margin:10px 0}.formula{font-size:29px;margin:16px 0 8px}.lab-copy .formula-note{font-size:11px;margin-bottom:12px}.lab-copy label{margin-top:12px}.lab-copy input{height:24px;margin-top:3px}.lab-results{margin-top:14px;padding-top:10px}}

@media(max-width:600px){.frame-controls{gap:10px}.frame-controls button,.frame-controls a{white-space:nowrap}}
@media(max-width:600px){.states-image{width:calc(100% + 48px);max-width:none}.states-image img{width:100%;height:auto;min-height:0;max-height:none;object-fit:contain}}

#sand-empty{font-size:11px;font-weight:800;letter-spacing:.12em;vertical-align:middle;animation:empty-pulse 1.8s ease-in-out infinite}#sand-empty[hidden]{display:none}#sand-empty.still{animation:none}@keyframes empty-pulse{0%,100%{opacity:1}50%{opacity:.18}}@media(prefers-reduced-motion:reduce){#sand-empty{animation:none}}

@media(max-width:600px){.mast nav{gap:12px;flex-wrap:wrap;justify-content:flex-end;max-width:225px}.mast nav #sound-toggle{min-height:32px}.mast nav a{min-height:32px}}

.languages{display:flex;gap:8px;align-items:center}.languages button{font-size:11px;min-height:36px;padding:0 2px;opacity:.5}.languages button[aria-pressed=true]{opacity:1;text-decoration:underline;text-underline-offset:5px}.mast nav{gap:20px}html:not([lang=en]) .frame-controls{gap:12px}html:not([lang=en]) .lab-parameter label{overflow-wrap:anywhere}@media(max-width:600px){.mast{gap:12px}.mast nav{max-width:calc(100% - 108px);gap:2px 12px}.mast nav button,.mast nav a{font-size:11px}.languages{gap:9px}.languages button{min-height:30px}html:not([lang=en]) .frame-controls{gap:6px;flex-wrap:wrap}html:not([lang=en]) .frame-controls button,html:not([lang=en]) .frame-controls a{font-size:10px}html:not([lang=en]) .measure-label{font-size:10px}html:not([lang=en]) .observation-count{font-size:10px}html:not([lang=en]) .lab-results{flex-wrap:wrap}html:not([lang=en]) .lab-parameter{gap:10px}}
@media(max-width:600px){html:not([lang=en]) .lab-parameter{gap:0 10px}html:not([lang=en]) .lab-results{flex-wrap:nowrap;font-size:10px;gap:12px}html:not([lang=en]) .lab-results strong{font-size:15px}html:not([lang=en]) .field-hud{display:grid;grid-template-columns:minmax(0,1fr) 90px;gap:8px}html:not([lang=en]) .field-hud .measure-label{font-size:10px;max-width:none}html:not([lang=en]) .frame-controls{bottom:calc(100% + 9px);flex-wrap:nowrap}html:not([lang=en]) .observation-count{text-align:right}html:not([lang=en]) #step-motion{bottom:153px}}
/* Mobile experiment: separate viewing, adjustment and transport areas. */
@media(max-width:600px){
 html{scroll-padding-top:110px}.mast{padding:12px 18px;background:#080808;mix-blend-mode:normal}.mast.reading{background:var(--paper)}
 .passage.trial{padding:118px 18px 150px}.trial-copy{max-width:100%}.trial .step{margin-bottom:8px;font-size:10px}.trial h2{font-size:30px;max-width:100%;line-height:1.08}.trial-copy>p:not(.interaction-note){font-size:12px;line-height:1.45;margin-top:10px}.trial .act-button{width:100%;min-height:44px;margin-top:12px;padding:9px 0;font-size:13px}.trial .interaction-note{max-width:none;font-size:10px;margin-top:5px;line-height:1.4}
 body .field-hud,html:not([lang=en]) .field-hud{left:0;right:0;bottom:0;padding:10px 18px calc(8px + env(safe-area-inset-bottom));display:grid;grid-template-columns:minmax(0,1fr) 82px;align-items:center;gap:5px 12px;background:#080808;border-top:1px solid #353535}
 .field-hud .measure{grid-column:1;gap:8px}.field-hud .sand-reservoir{width:23px;height:34px}.field-hud #sand-count{font-size:16px}.field-hud .measure>div>.measure-label:nth-of-type(3),.field-hud #grain-estimate{display:none}
 body .field-hud .measure-label,html:not([lang=en]) .field-hud .measure-label{font-size:10px;max-width:none;margin-top:3px}.field-hud .observation-count{grid-column:2;font-size:10px!important;text-align:right}.observation-count>.measure-label{display:none}
 body .field-hud .frame-controls,html:not([lang=en]) .field-hud .frame-controls{position:static;grid-column:1/-1;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;flex-wrap:nowrap}
 .field-hud .frame-controls a,.field-hud .frame-controls button,html:not([lang=en]) .field-hud .frame-controls a,html:not([lang=en]) .field-hud .frame-controls button{font-size:10px;white-space:normal;line-height:1.2;min-height:44px;padding:7px 2px;text-align:center;display:flex;align-items:center;justify-content:center}
 body.in-lab .lab-copy{position:fixed;z-index:10;left:18px;right:18px;bottom:calc(var(--mobile-hud-height,112px) + 10px);max-width:none;margin:0;padding:12px 0 0;background:#080808;border-top:1px solid #555}
 body.in-lab .lab-copy h2{font-size:21px;line-height:1.2;padding-right:130px;min-height:26px}
 body.in-lab .lab-copy>p{display:none}body.in-lab .lab-copy .formula{position:absolute;top:10px;right:0;font-size:22px;margin:0}
 body.in-lab .lab-parameter,html:not([lang=en]) body.in-lab .lab-parameter{grid-template-columns:116px minmax(0,1fr);gap:0 12px;margin-top:5px;min-height:45px}
 body.in-lab .lab-parameter label{font-size:11px;line-height:1.2}body.in-lab .lab-parameter output{display:inline;margin-left:6px;font-size:11px}body.in-lab .lab-parameter input{height:32px;margin:0;touch-action:pan-y}body.in-lab .lab-parameter .scale-label{font-size:9px}
 body.in-lab .lab-results,html:not([lang=en]) body.in-lab .lab-results{margin-top:8px!important;padding-top:6px;display:flex;flex-wrap:nowrap;font-size:10px;gap:10px;line-height:1.3}body.in-lab .lab-results strong{font-size:13px}
 body #step-motion,body.in-lab #step-motion,html:not([lang=en]) body #step-motion{top:104px;bottom:auto;right:18px;left:auto;transform:none;font-size:10px;min-height:32px;padding:5px 9px}
 body .finding{position:fixed;left:18px;right:18px;bottom:calc(var(--mobile-hud-height,112px) + 12px);text-align:left;background:#080808;z-index:4;padding:7px 0}.finding>span{font-size:9px}.finding>p{font-size:12px;line-height:1.35;margin-top:3px}.finding br{display:none}
}
@media(max-width:600px){.field-hud .measure,.field-hud .observation-count{grid-row:1}.field-hud .frame-controls{grid-row:2}}
@media(max-width:600px) and (max-height:720px){body.in-lab .lab-copy{padding-top:8px}body.in-lab .lab-copy h2{font-size:18px;padding-right:115px;min-height:24px}body.in-lab .lab-copy .formula{font-size:19px;top:7px}body.in-lab .lab-parameter,html:not([lang=en]) body.in-lab .lab-parameter{margin-top:1px;min-height:38px}body.in-lab .lab-parameter input{height:28px}body.in-lab .lab-results{margin-top:5px!important;padding-top:5px}}

@keyframes sound-invitation{0%,100%{opacity:1}50%{opacity:.38}}
#sound-toggle.awaiting-sound{animation:sound-invitation 1.6s ease-in-out infinite}
@media(prefers-reduced-motion:reduce){#sound-toggle.awaiting-sound{animation:none;text-decoration:underline;text-underline-offset:4px}}