/* Single presentation contract for every current and future experiment. */
:root{--experiment-title:clamp(28px,2.6vw,36px);--experiment-heading:23px;--experiment-panel-heading:21px;--experiment-body:17px;--experiment-label:16px;--experiment-plot:22px;--experiment-green:#8ed1bd;--experiment-on-green:#10203b;--clock-unit:.65px}
body[data-experiment] main{max-width:1480px;padding:22px 28px 30px}
body[data-experiment] .lab-intro,body[data-experiment] .intro{max-width:none;margin:0 0 16px;gap:24px;align-items:start}
body[data-experiment] .lab-intro h1,body[data-experiment] .intro h1{font:600 var(--experiment-title)/1.2 var(--head,Georgia,serif);letter-spacing:0;color:var(--accent,var(--blue));margin:6px 0 10px;overflow-wrap:anywhere}
body[data-experiment] .lab-intro>.eyebrow,body[data-experiment] .intro .eyebrow{font-size:14px;line-height:1.4;font-weight:600;letter-spacing:.06em;margin:0 0 6px;color:var(--muted)}
body[data-experiment] .lab-intro>p:not(.eyebrow),body[data-experiment] .intro p{font-size:var(--experiment-body);line-height:1.55;margin:8px 0}
body[data-experiment] .experiment-subtitle{font-style:italic;color:var(--muted)}
body[data-experiment] .lab-question{font-size:17px;line-height:1.5;margin:12px 0 16px}
body[data-experiment] .question{max-width:340px;padding:4px 0 4px 18px}
body[data-experiment] .question p{font-size:18px}
body[data-experiment] .lab-stage,body[data-experiment] .experiment,body[data-experiment] .osc-plot,body[data-experiment] .chartpanel{padding:18px;min-width:0}
body[data-experiment] h2{font-size:var(--experiment-heading);line-height:1.35}
body[data-experiment] .lab-paneltop h2,body[data-experiment] .paneltop h2,body[data-experiment] .instrument-card h3{font-size:var(--experiment-panel-heading);line-height:1.35;margin:0;min-height:0}
body[data-experiment] .lab-paneltop,body[data-experiment] .paneltop{gap:10px;flex-wrap:wrap;align-items:center}
body[data-experiment] .lab-transport,body[data-experiment] .transport{margin:12px 0;gap:10px;flex-wrap:wrap}
body[data-experiment] .lab-transport .button,body[data-experiment] .transport button{min-height:44px;font-size:16px}
body[data-experiment] .lab-scene{margin:12px 0}
body[data-experiment] .lab-controls h2{font-size:var(--experiment-panel-heading);margin:0 0 12px}
body[data-experiment] .lab-controls,body[data-experiment] .osc-controls{gap:8px 18px;padding:18px;margin-top:14px}
body[data-experiment] .lab-control,body[data-experiment] .settings label{font-size:var(--experiment-label);line-height:1.45;margin:4px 0}
body[data-experiment] .lab-control output{font-size:16px}
body[data-experiment] .osc-controls{grid-template-columns:repeat(2,minmax(0,1fr))}
body[data-experiment] .lab-stage>.lab-controls{grid-template-columns:repeat(2,minmax(0,1fr));border:0;border-top:1px solid var(--line);border-radius:0;padding:16px 0 0;margin-top:16px}
body[data-experiment] .lab-caption,body[data-experiment] .playback-note{font-size:16px;line-height:1.6}
body[data-experiment] .lab-theory p,body[data-experiment] .theory p{font-size:var(--experiment-body);line-height:1.75}
body[data-experiment] .solution-panel .math-equation{max-height:88px;min-width:0;width:auto;max-width:100%}
body[data-experiment] .under-animation .lab-metric span{font-size:14px;min-height:38px}
body[data-experiment] .under-animation .lab-metric strong{font-size:23px}
body[data-experiment] .under-animation .lab-metric small{font-size:14px}
body[data-experiment] .plot-scroll>svg{min-width:0;width:100%;height:auto}
body[data-experiment] #lab-chart text,body[data-experiment] #chart text,body[data-experiment] #osc-position text,body[data-experiment] #osc-energy text,body[data-experiment] #osc-compare text{font-size:var(--experiment-plot)}
body[data-experiment] #scene text{font-size:19px}
body[data-experiment] #osc-scene text{font-size:22px}
body[data-experiment] .instruments-grid{grid-template-areas:'scope meter' 'chart chart'}
body[data-experiment] .osc-plot[data-expanded=true] .plot-scroll>svg{width:160%;min-width:950px}
body[data-experiment] .learning-access{margin:12px 0 16px;padding:8px 12px;background:var(--panel,var(--surface))}
.mode-actions{display:flex;gap:10px;flex-wrap:wrap}

body[data-experiment] .learning-access[data-guided-open=true]{position:sticky;top:8px;z-index:10;box-shadow:0 5px 18px #0002}
.learning-access #guided-content{max-height:32vh;overflow:auto;padding:6px 2px 0;scrollbar-gutter:stable}
.learning-access #guided-progress{font:16px Consolas,monospace;display:block;margin:0 0 0 auto;align-self:center}.learning-access[data-guided-open=false] #guided-progress{display:none}
.learning-access [data-guided-step]{display:grid;grid-template-columns:1fr 1fr;gap:2px 20px}
.learning-access [data-guided-step] h3{grid-column:1;grid-row:1;font-size:18px;margin:0}
.learning-access [data-guided-step]>p{grid-column:1;grid-row:2;font-size:16px;line-height:1.45;margin:3px 0}
.learning-access [data-guided-step]>label{grid-column:2;grid-row:1}
.learning-access textarea{grid-column:2;grid-row:2;margin:4px 0;min-height:66px;font-size:16px;line-height:1.5}
.learning-access .note-privacy{font-size:13px;margin:4px 0;line-height:1.4}
.learning-access #note-status,.learning-access #guided-result{font-size:14px;line-height:1.4;margin:4px 0}
.learning-access #note-status:empty,.learning-access #guided-result:empty{display:none}
.learning-access .guided-actions{gap:8px}
.learning-access .guided-actions button{font-size:15px;padding:8px 12px}
body[data-experiment] .learning-section:not(.learning-access){margin:18px 0;padding:18px}
body[data-lab=clock] .clock-frames>div{min-width:0}
body[data-lab=clock] .clock-grid-scroll{overflow:auto;border:1px solid var(--line);border-radius:10px;background:var(--soft);scrollbar-gutter:stable}
body[data-lab=clock] .clock-grid-scroll .lab-scene{display:block;width:calc(var(--clock-unit)*740);height:calc(var(--clock-unit)*500);min-width:0;max-width:none;margin:0;border-radius:0}
body[data-lab=clock] .lab-scene text{font-size:28px}
body[data-lab=clock] .clock-frames h3{font-size:21px;margin:8px 0}
.clock-location{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:12px;font:17px Consolas,monospace}
body[data-experiment] .repeat-note{margin:4px 0;font-size:15px}
body[data-experiment] .repeat-control{margin-top:4px}
@media(max-width:1000px){body[data-experiment] .osc-right{display:block}body[data-experiment] .instruments-grid{grid-template-areas:'scope' 'chart' 'meter'}}
@media(max-width:700px){:root{--experiment-title:28px;--experiment-heading:22px;--experiment-panel-heading:20px;--clock-unit:.60px}body[data-experiment] main{padding:18px 12px}body[data-experiment] .intro{display:block}body[data-experiment] .question{max-width:none;margin-top:12px}body[data-experiment] .lab-stage,body[data-experiment] .experiment{padding:14px}body[data-experiment] .lab-stage>.lab-controls,body[data-experiment] .osc-controls{grid-template-columns:1fr 1fr}body[data-experiment] .instruments-grid{grid-template-areas:'scope meter' 'chart chart'}body[data-experiment] .learning-access[data-guided-open=true]{position:static}.learning-access #guided-content{max-height:none}.learning-access [data-guided-step]{display:block}.learning-access textarea{min-height:100px}body[data-experiment] .clock-frames h3{font-size:20px}.learning-access [data-guided-step]>label{display:block;margin-top:10px}}
@media(max-width:420px){body[data-experiment] .lab-stage>.lab-controls,body[data-experiment] .osc-controls{grid-template-columns:1fr}body[data-experiment] .lab-time{margin-left:0}}
/* Enlargement must actually increase the plotting area and retain label size. */
body[data-experiment] .observation-grid .lab-chart-panel[data-expanded=true] .plot-scroll>svg{width:160%;min-width:950px}
body[data-experiment] .observation-grid .lab-chart-panel[data-expanded=true] #lab-chart text,body[data-experiment] .standard-workspace[data-expanded=true] #chart text{font-size:var(--experiment-plot)}

:root[data-theme=light]{--experiment-green:#16786b;--experiment-on-green:#fff}
body[data-experiment] main button{background:transparent;color:var(--experiment-green);border:1px solid var(--experiment-green);border-radius:9px;min-height:44px}
body[data-experiment] main button.primary,body[data-experiment] main button[aria-pressed=true],body[data-experiment] main button[aria-expanded=true]{background:var(--experiment-green);color:var(--experiment-on-green);border-color:var(--experiment-green)}
body[data-experiment] main button:hover:not(:disabled){box-shadow:inset 0 0 0 1px var(--experiment-green)}
body[data-experiment] main button:focus-visible{outline:3px solid var(--experiment-green);outline-offset:3px}
body[data-experiment] main button:disabled{opacity:.5;cursor:not-allowed}
body[data-experiment] input[type=range]{accent-color:var(--experiment-green)}
.learning-access .note-help{margin:4px 0 0;font-size:13px;color:var(--muted)}
.learning-access .note-help summary{cursor:pointer;line-height:1.4}
.learning-access .note-help p{margin:5px 0;font-size:13px;line-height:1.5}
.learning-access .guided-actions{display:inline-flex;margin-top:4px}
body[data-lab=clock] .lab-stage>.clock-settings{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px 20px;margin:12px 0;padding:12px 0;border:0;border-top:1px solid var(--line);border-radius:0}
body[data-lab=clock] .clock-settings h2{grid-column:1/-1;font-size:18px;margin:0 0 2px}
body[data-lab=clock] .clock-settings label{margin:0}
.clock-readings>.eyebrow{margin:8px 0;font-size:14px}
body[data-lab=clock] .clock-readings .lab-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:8px 0}
body[data-lab=clock] .clock-readings .lab-metric span{min-height:0;font-size:15px}
body[data-lab=clock] .clock-readings .lab-metric strong{font-size:25px}
body[data-lab=clock] .clock-period{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
body[data-lab=clock] .clock-period p{margin:0}
body[data-lab=clock] #clock-cycle{display:inline;font:15px Consolas,monospace;margin:0}
.clock-display-notes{font-size:15px;color:var(--muted);margin:8px 0 18px}
.clock-display-notes summary{cursor:pointer;padding:5px 0}
.clock-display-notes .lab-caption{margin:6px 0}
body[data-experiment] .clock-brief{margin:12px 0 4px}
@media(min-width:701px) and (max-width:1200px){body[data-experiment] .osc-workspace,body[data-experiment] .standard-workspace{grid-template-columns:minmax(0,1fr)}}
@media(max-width:700px){body[data-experiment] .plot-scroll>svg{min-width:620px}body[data-lab=clock] .lab-stage>.clock-settings{grid-template-columns:1fr}body[data-lab=clock] .clock-readings .lab-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.learning-access textarea{min-height:66px}.learning-access #guided-content{max-height:none}.learning-access #guided-progress{font-size:14px}}

body[data-experiment] .standard-workspace[data-expanded=true] .plot-scroll>svg{width:160%;min-width:950px}