@import url('./reader-composition.css?v=101q');
/* Shared technical hierarchy: one setting, one immediate consequence. */
.controls-heading{grid-column:1/-1;display:flex;justify-content:space-between;gap:12px;align-items:baseline;padding-bottom:7px;border-bottom:2px solid #263440}
.controls-heading small{font-size:11px;font-weight:800;letter-spacing:.07em;color:#1d3448}.controls-heading span{font-size:12px;color:#576571}
.context-controls{gap:10px!important;padding:14px!important;background:#f5f7f8}
.context-controls .control{padding:10px;background:white;border:1px solid #c4ccd3;border-top:3px solid #8593a0;min-width:0}
.context-controls .control:focus-within,.context-controls .control.is-adjusted{border-top-color:#0965cf;box-shadow:inset 0 0 0 1px #0965cf20}
.context-controls .control label{margin-bottom:7px}.context-controls output{font-weight:750;font-variant-numeric:tabular-nums}.context-controls .control-hint{font-size:11px;line-height:1.5;margin-top:7px;color:#607080}
.context-controls input[type=range]{accent-color:#0865cf}.context-controls .exact-value{background:#f8fafb;font-variant-numeric:tabular-nums}
.control-validation{display:block;color:#8a4b05;background:#fff5e3;border-left:3px solid #c87b15;font-size:11px;line-height:1.5;padding:7px 9px;margin-top:7px}
.aperture-coupling{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;padding:10px!important;margin:0!important;background:#fff;border:1px solid #b5c3cf!important;border-left:3px solid #123650!important;align-items:start}
.aperture-heading{font-size:10px!important}.aperture-choice{margin-top:6px;gap:5px}.aperture-choice button{padding:8px!important;min-height:36px;font-size:12px}.aperture-lock{min-width:0}
.aperture-result{display:flex!important;align-items:baseline!important;justify-content:space-between;flex-wrap:wrap;padding:0!important;margin:0!important;gap:4px!important;border:0!important}.aperture-result strong{font-size:21px!important}.aperture-result span{font-size:11px!important}.aperture-equation{font-size:12px}.aperture-explanation{font-size:11px;line-height:1.6}.aperture-explanation summary{padding:5px 0;cursor:pointer;color:#445c70}.aperture-explanation p{margin:5px 0 10px}
.context-actions{margin-top:0!important;gap:6px!important}.context-actions button{font-size:12px}
.control-response{grid-column:1/-1;padding:13px;background:#123650;color:white;border-left:4px solid #ee9b22}.control-response>small{font-size:10px;letter-spacing:.06em;font-weight:750;color:#abcde9}.control-response-values{display:flex;gap:12px;flex-wrap:wrap;margin-top:9px}.control-response-values>div{flex:1;min-width:150px}.control-response-values span{display:block;font-size:11px;color:#d0dee9;margin-bottom:4px}.control-response-values strong{font-size:15px;line-height:1.5;font-variant-numeric:tabular-nums}.control-response-values small{font-size:12px;font-weight:450;color:#b4cbdc}.control-response-values i{color:#ffb43c;font-style:normal}.control-response-note{font-size:12px;line-height:1.6;margin:9px 0 0!important;color:#e7eff5!important}
#mechanism-svg:has(.pixel-lesson),#mechanism-svg:has(.adc-lesson),#mechanism-svg:has(.row-lesson){display:block;aspect-ratio:auto;padding:0}
.pixel-lesson,.adc-lesson,.row-lesson{width:100%;background:white}.pixel-lesson>svg,.adc-lesson>svg,.row-lesson>svg{display:block;width:100%;height:auto}.pixel-phases,.adc-stages{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;padding:12px;border-bottom:1px solid #bcc9d4}.adc-stages{grid-template-columns:repeat(3,minmax(0,1fr))}.pixel-phases button{font-size:11px;min-height:48px;text-align:left;line-height:1.4;padding:7px}.pixel-phases small{display:block;font-size:10px;opacity:.7}.pixel-current,.adc-current,.row-current{padding:18px 24px 10px}.pixel-current>small,.row-current>small{font-size:10px;color:#945600;letter-spacing:.07em;font-weight:800}.pixel-current h3,.adc-current h3,.row-current h3{margin:7px 0;font-size:19px}.pixel-current p,.adc-current p,.row-current p{font-size:13px;line-height:1.65;margin:5px 0;color:#3e5364;max-width:76ch}
.pixel-lesson svg text{font-family:inherit;fill:#1d3448;font-size:16px}.pixel-lesson svg .small{font-size:12px;fill:#4a6073}.pixel-lesson svg .eyebrow{font-size:11px;fill:#815109;letter-spacing:.06em}.pixel-lesson svg .pixel-white{fill:white;font-weight:650}.pixel-lesson svg [role=button]{cursor:pointer}
.pixel-values{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:13px 24px;border-block:1px solid #d5dde4;background:#f3f6f8}.pixel-values span{display:block;font-size:11px;color:#526879}.pixel-values strong{display:block;font-size:18px;font-variant-numeric:tabular-nums;margin-top:5px}.pixel-notes,.adc-notes{padding:12px 24px;font-size:13px;line-height:1.7}.pixel-notes summary,.adc-notes summary{font-weight:650;cursor:pointer}.pixel-limit{padding:10px 24px;color:#884c00;font-size:12px}
#pixel-playbar{padding:13px 18px;gap:7px}#pixel-playbar>small{width:100%;font-size:11px;color:#667482}.pixel-scrubber{display:flex;align-items:center;gap:12px;width:100%;font-size:12px;margin:8px 0}.pixel-scrubber input{flex:1;min-width:80px;accent-color:#0865cf}
.adc-binary{display:flex;flex-wrap:wrap;gap:3px;margin:16px 0}.adc-binary span{min-width:31px;padding:5px;background:#e6ebf0;text-align:center;border:1px solid #b3c2cd}.adc-binary span.on{background:#123650;color:white;border-color:#123650}.adc-binary small{display:block;font-size:9px}.adc-binary b{font:700 19px ui-monospace,monospace}.adc-voltage-bars{padding:13px 0}.adc-voltage-bars>div{display:grid;grid-template-columns:110px 1fr 120px;gap:10px;align-items:center;margin:9px 0;font-size:12px}.adc-v-track{height:16px;background:#e0e6eb;border-right:2px solid #c27600}.adc-v-track i{display:block;background:#0865cf;height:100%}.adc-notes table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums;font-size:12px}.adc-notes th,.adc-notes td{padding:7px;text-align:left;border-bottom:1px solid #c4cdd4}
.row-scrubber{display:block;padding:0 24px 18px;font-size:13px}.row-scrubber input{display:block;width:100%;margin-top:12px;accent-color:#0865cf}.row-scrubber output{float:right;font-weight:700}.row-sample{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:18px 24px;border-block:1px solid #c4cdd4;background:#f3f6f8;font-size:13px;line-height:1.8}.row-sample p{margin:7px 0 0}.row-status{display:inline-block;width:10px;height:10px;margin-right:7px}.row-chain{display:flex;flex-direction:column;gap:8px;border-left:2px solid #0865cf;padding-left:14px;justify-content:center}.row-chain span{color:#506779}.row-lesson [data-readout-row]{cursor:pointer}
@media(max-width:680px){.controls-heading{flex-direction:column;gap:3px}.context-controls{padding:12px!important}.pixel-phases{grid-template-columns:repeat(3,minmax(0,1fr))}.pixel-current,.adc-current,.row-current{padding:14px 14px 8px}.pixel-values{padding:12px;gap:8px}.pixel-values strong{font-size:14px}.pixel-notes,.adc-notes{padding:12px 14px}.pixel-values span{font-size:10px}.adc-voltage-bars>div{grid-template-columns:1fr 1fr}.adc-v-track{grid-column:1/-1;grid-row:2}.row-sample{grid-template-columns:1fr;gap:12px;padding:14px}.adc-stages button{font-size:11px;padding:7px}.adc-binary span{min-width:26px}.aperture-result{flex-wrap:wrap}}
.formula-block{margin:18px 0;padding:16px 8px;overflow-x:auto;border-bottom:1px solid #d4dce5;max-width:100%}
.reader-body .formula-block math,.reader-body .reading-equation math{display:math;math-style:normal;padding:0;overflow:visible;margin:0;font-size:20px}
.reader-body .formula-block math{display:block math}
.light-presets{grid-column:1/-1;display:flex;gap:6px;flex-wrap:wrap;align-items:center;padding:2px 0}.light-presets>span{font-size:12px;color:#46596c;margin-right:4px}.light-presets button{font-size:12px;padding:7px 10px;background:#fff}
.light-settings{grid-column:1/-1;font-size:12px;line-height:1.7;border-top:1px solid #c6d0d9;padding-top:10px}.light-settings summary{cursor:pointer;color:#425b71}.light-settings label{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:10px 0}.light-settings input{width:90px;padding:8px;border:1px solid #aabac8}.light-settings p{margin:10px 0!important}.light-settings button{font-size:12px}
.performance-panel{padding:22px;border-top:1px solid #b5c3cf;background:white}.performance-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:15px}.performance-head small{font-size:10px;font-weight:750;color:#83540d;letter-spacing:.06em}.performance-head h3{font-size:19px;margin:6px 0}.performance-head button{font-size:11px;padding:7px;flex-shrink:0}.performance-context,.performance-tradeoff,.performance-settings p,.performance-probability p{font-size:12px;line-height:1.7;color:#4b6071;margin:12px 0}.performance-tradeoff{border-left:3px solid #ca8619;padding:8px 12px;background:#faf8f3}
.performance-table-wrap{width:100%;overflow-x:auto;margin:15px 0}.performance-table{border-collapse:collapse;width:100%;font-size:13px;font-variant-numeric:tabular-nums}.performance-table caption{text-align:left;font-size:11px;letter-spacing:.03em;color:#526779;padding-bottom:8px}.performance-table th,.performance-table td{text-align:left;padding:11px 8px;border-bottom:1px solid #c6d0da}.performance-table thead{background:#123650;color:white}.performance-table thead small{color:#c6d7e5}.performance-table small{display:block;font-size:10px;font-weight:400;color:#536b7d;margin-top:5px;white-space:nowrap}.performance-table td strong{font-size:16px;color:#133951;white-space:nowrap}.performance-table th[scope=row]{font-size:13px}
.performance-inputs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.performance-inputs label{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:11px;line-height:1.5;margin:6px 0}.performance-inputs input{width:82px;min-width:0;flex-shrink:0;padding:8px;border:1px solid #aabac8;border-radius:2px;font:inherit;background:white}.performance-inputs fieldset{min-width:0;border:1px solid #cad3dc;padding:10px}.performance-inputs legend{font-size:11px;font-weight:650;padding:0 5px}.performance-settings,.performance-probability{border-top:1px solid #c6d0d9;padding:12px 0;font-size:12px}.performance-settings summary,.performance-probability summary{cursor:pointer;font-weight:650;color:#284c68}.performance-settings button{font-size:12px;padding:8px 10px}.performance-probability-rows>div{display:grid;grid-template-columns:1fr repeat(3,1fr);gap:8px;align-items:center;padding:10px 0;border-bottom:1px solid #e1e6eb}.performance-probability-rows span{font-size:10px;color:#536b7d}.performance-probability-rows strong{display:block;font-size:14px;color:#1b3a50;margin-top:4px}
@media(max-width:680px){.performance-panel{padding:14px}.performance-head{flex-wrap:wrap}.performance-head h3{font-size:17px}.performance-table th,.performance-table td{padding:9px 5px}.performance-table td strong{font-size:13px}.performance-inputs{grid-template-columns:1fr}.performance-head button{font-size:12px}.performance-table small{font-size:9px}.performance-table th{font-size:11px}}

/* One experiment, one page scroll. No pinned images or controls. */
:root{--chapter-nav-height:52px;--experiment-height:clamp(320px,55svh,440px)}
.visual-workspace{display:block}.experiment-panels{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;align-items:start}
.mechanism-panel,.image-panel{position:static;min-width:0;overflow:visible;align-self:start}
.mechanism-preview,.scene-observation{position:static;height:var(--experiment-height);display:flex;flex-direction:column;background:white}
.scene-preview{display:flex;flex-direction:column;flex:1;min-height:0}
.mechanism-preview>.panel-bar,.scene-preview>.panel-bar{min-height:34px;padding:5px 10px;font-size:10px;flex-shrink:0}
.mechanism-preview .tools button{font-size:10px;min-height:25px;padding:3px 6px}
.mechanism-preview>.mode-switch{padding:4px 10px;gap:5px;flex-shrink:0}
.mechanism-preview>.mode-switch button{font-size:11px;min-height:27px;padding:4px 8px}
.mechanism-preview .lens-switch{display:flex;flex-wrap:wrap;gap:3px;padding:5px}
.mechanism-preview .lens-switch button{flex:1;min-width:65px;min-height:31px;padding:5px;font-size:11px}
.mechanism-preview .lens-switch small{display:none}
.mechanism-preview .visual-stage{flex:1;min-height:0;display:flex;align-items:stretch}
.mechanism-preview #mechanism-svg,.mechanism-preview #camera-model{width:100%;height:100%;min-height:0;aspect-ratio:auto!important;padding:0!important}
#mechanism-svg{display:flex!important;align-items:center;justify-content:center}
#mechanism-svg[hidden]{display:none!important}
#mechanism-svg>svg{display:block;width:100%;height:100%;object-fit:contain;min-width:0;max-width:100%}
#mechanism-svg>.spot-comparison{display:flex;width:100%;height:100%;gap:6px}
#mechanism-svg>.spot-comparison>svg{width:50%;height:100%;min-width:0}
.mechanism-preview .algorithm-strip{padding:5px;gap:3px}
.mechanism-preview .algorithm-strip button{font-size:11px;padding:5px;min-height:28px}
.mechanism-preview .experiment-control{padding:6px 12px}
.mechanism-preview .experiment-control p{display:none}
.mechanism-preview .component-toolbar{flex-shrink:0;padding:4px 10px;gap:8px;background:#f6f8fa;font-size:10px;min-height:33px;border-top:1px solid #c6d0d9}
.mechanism-preview .component-toolbar select{font-size:11px;min-height:25px;padding:3px 7px}
.mechanism-preview .component-toolbar button{font-size:10px;min-height:25px;padding:3px 7px}
#mechanism-tools{flex-shrink:0}
#mechanism-tools .ray-point-picker{padding:4px 10px;gap:5px;border-bottom:1px solid #d2dbe3}
#mechanism-tools .ray-point-picker button{min-height:25px;padding:3px 8px;font-size:11px}
#mechanism-tools .pixel-phases,#mechanism-tools .adc-stages{padding:5px;gap:3px}
#mechanism-tools .pixel-phases button{min-height:32px;font-size:10px;padding:4px}
#mechanism-tools .pixel-phases small{display:none}
#mechanism-tools .row-scrubber{padding:6px 12px;margin:0;font-size:11px}
#mechanism-tools .row-scrubber input{margin:5px 0 0}
#pixel-playbar{flex-shrink:0;padding:6px 10px;gap:5px}
#pixel-playbar>small{display:none}.pixel-scrubber{width:auto;flex:1;min-width:150px;margin:0;font-size:11px}
#pixel-playbar button{padding:4px 7px;min-height:27px}
#spot-tools .spot-scale{padding:5px 10px;gap:6px;font-size:11px}
#spot-tools .spot-scale>strong{display:none}
#spot-tools .spot-scale label{font-size:11px;gap:6px}
#spot-tools .spot-scale select,#spot-tools .spot-scale button{font-size:11px;padding:4px;min-height:27px}
.image-mat{display:flex;justify-content:center;align-items:center;background:#e5e9ed;flex:1;min-height:0;overflow:hidden}
.image-wrap{--image-ratio:1.777778;width:min(100%,calc(var(--image-ratio) * (var(--experiment-height) - 160px)));flex:none;margin:0 auto;max-height:100%}
.scene-preview .image-caption{padding:5px 10px;gap:5px 10px;min-height:31px;font-size:11px;flex-shrink:0}
#light-camera-state{font-variant-numeric:tabular-nums}
.light-camera-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:6px 12px;border-top:1px solid #d3dce4;font-size:11px}
.light-camera-actions button{padding:5px 8px;min-height:28px;font-size:11px}
.light-camera-actions span{margin-left:auto;font-variant-numeric:tabular-nums;color:#31516a}
#sensor-mode{font-size:10px;font-weight:600;white-space:nowrap}
.scene-preview .isp-selection-tools{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:4px 10px;font-size:11px;border-top:1px solid #d5dde4;background:#f7f9fb;flex-shrink:0}
.scene-preview .isp-selection-tools button{font-size:11px;padding:3px 7px;min-height:25px}
.scene-observation .metrics{margin:0;padding:7px 12px;gap:0 12px;border-top:1px solid #c6d0d9;background:white;flex-shrink:0}
.scene-observation .metrics:empty{display:none}
.scene-observation .metric{padding:3px 0;min-width:0}
.scene-observation .metric strong{font-size:19px;margin-top:3px;line-height:1.2;white-space:normal}
.scene-observation .metric small{font-size:11px}.scene-observation .metric small button{font-size:inherit}
.scene-observation .metric p{font-size:10px;line-height:1.4;margin:3px 0 0}
.scene-observation .metrics:has(>.metric:nth-child(4)){grid-template-columns:repeat(4,minmax(0,1fr))}
#experiment-controls{margin-top:12px;border:1px solid #bbc7d2;background:white}
#controls{grid-template-columns:repeat(var(--control-count),minmax(0,1fr));padding:9px 12px!important;gap:8px!important}
.controls-heading{padding:0 0 6px;border-bottom:1px solid #b9c6d1}
#controls .control{padding:7px 9px;border:0;border-top:2px solid #9cabb8;background:#f5f7f9}
#controls .control label{margin-bottom:6px;font-size:12px;gap:5px;flex-wrap:wrap}
#controls .control output{font-size:12px}
#controls .control-hint{display:none}
#controls .range-row{gap:7px}#controls .range-row .exact-value{width:74px;padding:5px}
#controls .aperture-coupling{display:flex;gap:14px;align-items:center;padding:5px 8px!important;border:0!important;background:#edf3f8;grid-column:1/-1}
#controls .aperture-lock{display:flex;align-items:center;gap:10px}
#controls .aperture-choice{margin:0}.aperture-choice button{min-height:28px!important;padding:5px 8px!important;font-size:11px}
#controls [data-aperture-summary]{display:flex;align-items:baseline;justify-content:space-between;flex:1;gap:12px}
#controls .aperture-result{gap:7px!important;justify-content:start}
#controls .aperture-result strong{font-size:18px!important}
#controls .aperture-explanation{font-size:11px;position:relative}
#controls .aperture-explanation[open]{position:absolute;z-index:4;right:20px;max-width:420px;padding:8px 12px;background:white;border:1px solid #b5c3cf;box-shadow:0 4px 12px #15273620}
#controls .context-actions{margin:0!important;justify-content:flex-end}
#control-extras:empty{display:none}
#control-extras .light-presets{padding:5px 12px;margin:0;border-top:1px solid #d3dce4}
#control-extras .light-settings{padding:8px 12px}
#control-extras .control-response{padding:9px 12px;border-left:3px solid #ee9b22}
#control-extras .control-response-values{margin-top:4px}.control-response-values>div{min-width:100px}
#control-extras .control-response-note{margin-top:6px!important;font-size:12px}
.gsd-tools{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;flex-shrink:0;background:white}
.gsd-tools>.mode-switch{padding:4px 8px;border-bottom:0;gap:4px}
.gsd-tools:has(.mode-switch:not([hidden])){border-bottom:1px solid #cad3dc}
.gsd-tools button{font-size:11px;min-height:27px;padding:4px 7px}
.explanation-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;margin-top:14px;align-items:start}
.explanation-grid:has(.analysis-explanations[hidden]){grid-template-columns:1fr}
.mechanism-explanations,.analysis-explanations{min-width:0;background:white;border:1px solid #bcc6d0}
.mechanism-explanations p{max-width:90ch}.mechanism-explanations .part-inspector{margin:0}
#mechanism-notes:empty{display:none}
#mechanism-notes .ray-point-picker{display:none}
#mechanism-notes .ray-step-description{min-height:0}
#mechanism-notes .ray-reading{padding:4px 18px}
#mechanism-notes .ray-reading p{font-size:13px;line-height:1.65}
#mechanism-notes .gsd-region{padding:14px 18px}
.region-measurements{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.region-measurements small{font-size:11px;color:#536b7b}.region-measurements strong{display:block;font-size:18px;margin-top:6px}
.spot-explanation{padding:0 18px;font-size:13px;line-height:1.65}
.diffraction-panel>summary{font-size:13px;font-weight:700;cursor:pointer;line-height:1.6}
.diffraction-panel[open]>summary{margin-bottom:14px}
.visual-workspace>.performance-panel{margin-top:14px;border:1px solid #bcc6d0;min-width:0}
.performance-table small{white-space:normal}
.density-edition{display:flex;gap:10px;align-items:center;justify-content:space-between;font-size:12px;margin:13px 0}.density-edition select{padding:7px;border:1px solid #aabac8;font:inherit;max-width:70%}.density-table th:first-child{width:48%}
#workbench[data-chapter=pixel] #mechanism-svg text{font-family:inherit;fill:#1d3448;font-size:16px}
#workbench[data-chapter=pixel] #mechanism-svg .small{font-size:12px;fill:#4a6073}
#workbench[data-chapter=pixel] #mechanism-svg .eyebrow{font-size:11px;fill:#815109}
#workbench[data-chapter=pixel] #mechanism-svg .pixel-white{fill:white;font-weight:700}
.visual-workspace :is(input,button,select,summary){scroll-margin-top:calc(var(--chapter-nav-height) + 12px);scroll-margin-bottom:16px}
.experiment-view-switch{display:none}
#workbench[data-chapter=overview] .mechanism-preview{height:440px}
@media(max-width:999px){
 :root{--experiment-height:clamp(270px,44svh,380px)}
 .experiment-panels{grid-template-columns:1fr}
 .experiment-view-switch{display:flex;gap:6px;padding:7px 0}
 .experiment-view-switch button{font-size:12px;padding:7px 10px}
 .visual-workspace[data-experiment-view=mechanism] .image-panel,.visual-workspace[data-experiment-view=scene] .mechanism-panel{display:none}
 .explanation-grid{grid-template-columns:1fr}
 #controls{grid-template-columns:repeat(2,minmax(0,1fr))}
 #controls .aperture-coupling{flex-wrap:wrap;gap:6px}
 #controls [data-aperture-summary]{min-width:180px}
 .scene-observation .metrics{padding:5px 10px;gap:0 9px}
 .scene-observation .metric strong{font-size:17px}
 .scene-observation .metric p{font-size:10px}
 .image-wrap{width:min(100%,calc(var(--image-ratio) * (var(--experiment-height) - 145px)))}
}
@media(max-width:540px){
 :root{--experiment-height:320px}
 .scene-observation .metrics:has(>.metric:nth-child(4)){grid-template-columns:repeat(2,minmax(0,1fr))}
 .scene-observation .metric p{display:none}
 #controls .control{padding:7px 5px}
 #controls .control label{font-size:11px}
 #controls .range-row input[type=range]{min-width:30px}
 #controls .range-row .exact-value{width:59px}
 #controls .aperture-lock{gap:6px;flex-wrap:wrap}
 #controls .aperture-explanation[open]{right:10px;max-width:calc(100vw - 40px)}
 #controls .context-actions{justify-content:start}
 .mechanism-preview .lens-switch button{font-size:10px}
 .scene-preview .image-caption{font-size:10px}
 .pixel-scrubber{width:100%;flex-basis:100%}
 .performance-panel{padding:12px}
}

#mechanism-local-controls{flex-shrink:0}
#mechanism-local-controls .ray-playbar{padding:4px 10px;gap:7px;font-size:10px}
#mechanism-local-controls .ray-playbar button{font-size:11px;padding:4px 7px;min-height:26px}
#mechanism-local-controls .ray-playbar span{font-size:10px}
#mechanism-local-controls .row-scrubber{padding:5px 12px;margin:0;font-size:11px}
#mechanism-local-controls .row-scrubber input{margin-top:4px}
#mechanism-tools .ray-steps{padding:4px 8px;gap:4px}
#mechanism-tools .ray-steps button{font-size:10px;min-height:26px;padding:4px}
.refraction-detail[open]{display:grid;grid-template-columns:minmax(200px,.8fr) minmax(0,1.2fr);gap:8px 20px;align-items:center}
.refraction-detail>summary,.refraction-detail>p{grid-column:1/-1}
.refraction-detail>label{grid-column:1;padding:12px}
.refraction-detail>[data-refraction-figure]{grid-column:2;grid-row:3;max-width:600px}
@media(max-width:680px){.refraction-detail[open]{display:block}}

/* Motion has its own local experiment: integration and frame cadence together. */
.motion-workspace{display:grid;grid-template-columns:1.25fr 1fr}
.motion-controls,.motion-command,.motion-context{grid-column:1/-1}
.motion-controls{grid-template-columns:repeat(4,minmax(0,1fr));padding:12px 16px;gap:14px}
.motion-control input{margin:8px 0 4px}
.motion-command{padding:7px 16px;gap:6px}
.motion-command button{font-size:11px;padding:5px 8px;min-height:28px}
.motion-pair{grid-column:1;grid-row:3;gap:8px;padding:12px}
.motion-card header{font-size:10px;padding:7px;gap:4px}
.motion-card p{font-size:11px;min-height:0;padding:7px;line-height:1.5}
.motion-card canvas{max-height:25svh;object-fit:contain}
.motion-frames{grid-column:2;grid-row:3;padding:10px 12px}
.motion-section-head h3{font-size:13px;margin:6px 0}
.motion-section-head span{font-size:10px}
.motion-frame-row{gap:5px;margin-top:10px}
.motion-frame-row figcaption{font-size:10px;padding:5px}
.motion-timeline{grid-column:1;grid-row:4;padding:9px 12px}
#motion-timeline-label{font-size:11px;gap:4px}
.motion-results{grid-column:2;grid-row:4;grid-template-columns:1fr;margin:0 12px;padding:8px 0;gap:5px}
.motion-results>div{display:grid;grid-template-columns:1fr auto;gap:3px;align-items:center}
.motion-results strong{font-size:19px;margin:0}.motion-results small{font-size:11px}
.motion-results p{grid-column:1/-1;font-size:10px;margin:0}
.motion-controls>details{grid-column:1/-1;font-size:12px;line-height:1.5}
.motion-controls>details>summary{cursor:pointer;font-weight:650}
.motion-controls .motion-extra{padding:9px 0 0;gap:14px}
@media(max-width:760px){
 .motion-workspace{grid-template-columns:1fr}
 .motion-controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;padding:10px}
 .motion-control>span{font-size:11px;flex-wrap:wrap;gap:3px}
 .motion-control small{display:none}
 .motion-pair{grid-row:3;grid-column:1;grid-template-columns:1fr 1fr;padding:8px;gap:6px}
 .motion-card canvas{max-height:140px}
 .motion-card p{display:none}
 .motion-frames{grid-column:1;grid-row:4;padding:6px 8px}
 .motion-frame-row{margin-top:4px}
 .motion-frame-row canvas{max-height:85px;object-fit:contain}
 .motion-timeline{grid-column:1;grid-row:5;padding:6px 10px}
 .motion-timeline svg{max-height:48px}
 .motion-results{grid-column:1;grid-row:6;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
 .motion-results>div{display:block}.motion-results strong{font-size:16px;text-align:left;margin:3px 0}
 .motion-results p{display:none}
 .motion-controls .motion-extra{grid-template-columns:repeat(3,minmax(0,1fr))}
}

.performance-camera{display:flex;align-items:center;flex-wrap:wrap;gap:10px 22px;padding:10px 12px;margin:12px 0 6px;background:#f1f5f8;border:1px solid #c6d0d9}
.performance-camera label{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:650}
.performance-camera input{width:90px;padding:6px;border:1px solid #aabac8;font:inherit;background:white}
.performance-camera label span{font-weight:400}.performance-camera>small{font-size:11px;color:#526879}

@media(min-width:761px) and (max-height:700px){
 .motion-control small{display:none}
 .motion-card canvas{max-height:18svh}
 .motion-results p{display:none}
 .motion-results{gap:4px}
 .motion-results small{font-size:10px}
 .motion-controls{padding:9px 12px}
 .motion-pair{padding:8px}
}

#mechanism-local-controls .pixel-values{padding:5px 10px;gap:8px;border-bottom:0}
#mechanism-local-controls .pixel-values span{font-size:10px}
#mechanism-local-controls .pixel-values strong{font-size:14px;margin-top:3px}

#mechanism-local-controls .row-sample{display:block;padding:6px 10px;font-size:11px;line-height:1.4}
#mechanism-local-controls .row-sample p{margin:3px 0 0;font-size:10px}
#mechanism-local-controls .adc-voltage-bars{padding:4px 10px}
#mechanism-local-controls .adc-voltage-bars>div{grid-template-columns:100px 1fr 100px;gap:6px;margin:3px 0;font-size:10px}
#mechanism-local-controls .adc-v-track{height:10px}
#mechanism-local-controls .adc-binary{margin:4px 10px;gap:2px}
#mechanism-local-controls .adc-binary span{min-width:20px;padding:3px}
#mechanism-local-controls .adc-binary b{font-size:14px}
#mechanism-local-controls .adc-binary small{font-size:8px}
#workbench[data-chapter=output] .scene-preview{display:none}
#workbench[data-chapter=output] .scene-observation{height:auto}
#workbench[data-chapter=output] .scene-observation .metrics{grid-template-columns:repeat(2,minmax(0,1fr));padding:10px 14px}
#workbench[data-chapter=output] #experiment-controls{margin:0;border:0;border-top:1px solid #b9c6d1}
#workbench[data-chapter=output] #controls{grid-template-columns:repeat(2,minmax(0,1fr))}
#workbench[data-chapter=output] .component-toolbar{display:none}
#workbench[data-chapter=output] .mechanism-preview{height:clamp(380px,64svh,520px)}
#workbench[data-chapter=output] .transfer-settings{font-size:11px;gap:8px;padding:8px 10px}
#workbench[data-chapter=output] .transfer-format{padding:6px 8px}
#workbench[data-chapter=output] .transfer-format button{font-size:11px;min-height:28px;padding:5px 7px}
@media(max-width:999px){
 #workbench[data-chapter=output] .experiment-view-switch{display:none}
 #workbench[data-chapter=output] .visual-workspace[data-experiment-view] .image-panel,#workbench[data-chapter=output] .visual-workspace[data-experiment-view] .mechanism-panel{display:block}
 #workbench[data-chapter=output] .mechanism-preview{height:350px}
}

#mechanism-local-controls .selected-values{padding:5px 10px;border-top:1px solid #c6d0d9;background:#f3f6f8;font-size:12px;line-height:1.5}
#mechanism-local-controls .selected-values p{margin:2px 0;color:#1c3e55}

@media(max-width:760px){.chapter-nav{display:flex;overflow-x:auto;scrollbar-width:thin;scroll-snap-type:x proximity}.chapter-nav button{flex:0 0 auto;min-width:106px;min-height:40px;scroll-snap-align:start;white-space:nowrap}}

/* One-level performance navigation; native detail and the numeric result stay together. */
.resolution-picker{display:flex;align-items:center;gap:10px;padding:7px 12px;border-bottom:1px solid #c7d1da;font-size:12px}
.resolution-picker select{flex:1;min-width:0;padding:5px;font:inherit;background:white;border:1px solid #aabac8}
.resolution-view{display:flex;flex-direction:column;width:100%;height:100%;min-height:0;padding:8px 12px;box-sizing:border-box;gap:4px}
.resolution-image{position:relative;flex:1;min-height:50px;width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden}
.resolution-image img{display:block;width:auto;height:100%;max-width:100%;image-rendering:pixelated;object-fit:contain}
.resolution-image i{display:none}
.resolution-profile{height:49px;flex:none;font-size:10px;color:#42617a;display:flex;flex-direction:column}
.resolution-profile svg{width:100%;height:30px;min-height:0}.resolution-view>small{text-align:center;font-size:11px;color:#4d6171}
.resolution-readout{display:flex;flex-wrap:wrap;gap:5px 15px;justify-content:space-between;background:#f1f6f9;padding:8px 12px;border-top:1px solid #c4d1dd;font-size:12px;line-height:1.5}
.resolution-readout b{color:#153c59;font-variant-numeric:tabular-nums}.resolution-explanation{padding:18px;font-size:13px;line-height:1.75}.resolution-explanation h3{font-size:17px;margin:0 0 8px}.resolution-explanation p{margin:8px 0}
.mtf-view>svg{width:100%;flex:1;min-height:60px}.mtf-view text{font-family:inherit;font-size:15px;fill:#344f61}.mtf-descriptions{display:flex;justify-content:space-between;gap:15px;font-size:12px}
#mtf-frequency-control{padding:6px 12px!important;display:grid;grid-template-columns:1fr auto;gap:4px 10px;align-items:center;font-size:12px}
#mtf-frequency-control[hidden]{display:none!important}#mtf-frequency-control label{grid-column:1/-1}#mtf-frequency-control input{min-width:0;width:100%}#mtf-frequency-control button{font-size:11px;padding:5px}
/* Electronic routes follow the shared chapter heading and reading tools. */
#workbench[data-chapter=output] .electronics-toolbar .el-route{display:none}
#output-switch{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin:4px 0 16px;padding:0;border:1px solid #bcc9d3;background:white}
#output-switch button{border:0;border-radius:0;border-right:1px solid #d7e0e6;background:transparent;color:#405666;padding:10px 12px;min-height:44px;font-size:13px;font-weight:600;line-height:1.4}
#output-switch button:last-child{border-right:0}
#output-switch button[aria-pressed=true]{background:#eaf1f6;color:#183d59;box-shadow:inset 0 -3px #0865cf}
#output-switch button:hover{background:#f0f5f8;color:#183d59}
@media(max-width:600px){#output-switch{grid-template-columns:repeat(2,minmax(0,1fr))}#output-switch button{padding:9px 7px}#output-switch button:nth-child(2){border-right:0}#output-switch button:nth-child(-n+2){border-bottom:1px solid #d7e0e6}}
/* A short ISP adjustment alongside its own explanation, not a full-width slider. */
#workbench[data-chapter=color] .mechanism-preview:has(#algorithm-strip:not([hidden])){height:auto}
#workbench[data-chapter=color] .mechanism-preview:has(#algorithm-strip:not([hidden])) .visual-stage{flex:none;aspect-ratio:760 / 370}
#workbench[data-chapter=color] .mechanism-preview .algorithm-strip button{font-size:12px;min-height:34px}
#workbench[data-chapter=color] #mechanism-local-controls .selected-values{font-size:14px;padding:9px 14px}
#workbench[data-chapter=color] #mechanism-svg>svg>.note{font-size:18px}
#workbench[data-chapter=color] #mechanism-svg>svg>.eyebrow{font-size:14px}
#workbench[data-chapter=color] #experiment-controls{display:grid;grid-template-columns:minmax(230px,.75fr) minmax(320px,1.25fr);gap:0;border:1px solid #bbc8d3;background:white}
#workbench[data-chapter=color] #controls{grid-template-columns:repeat(2,minmax(0,1fr))!important;border:0!important;align-content:start}
#workbench[data-chapter=color] #controls .control:not([data-control-card=red]):not([data-control-card=blue]){grid-column:1/-1}
#workbench[data-chapter=color] #controls .aperture-coupling{flex-wrap:wrap;gap:6px}
#workbench[data-chapter=color] #controls .aperture-lock{flex:1 0 100%;flex-wrap:wrap;gap:5px 9px}
#workbench[data-chapter=color] #control-extras{grid-column:1}
#workbench[data-chapter=color] #isp-stage-context{grid-column:2;grid-row:1 / span 2;border-left:1px solid #c6d2dc}
#isp-stage-context .isp-stage-explanation{border:0;padding:12px 16px;background:white}
#isp-stage-context .isp-stage-explanation h3{font-size:16px;margin:4px 0 7px}#isp-stage-context .isp-stage-explanation p{font-size:12px;line-height:1.55;margin:6px 0}
#isp-stage-context .isp-stage-explanation>small{font-size:12px;font-weight:750;color:#905c0c}
#isp-stage-context details{font-size:12px;margin-top:7px}
@media(max-width:760px){#workbench[data-chapter=color] #experiment-controls{display:block}#workbench[data-chapter=color] #isp-stage-context{border-left:0;border-top:1px solid #c6d2dc}.resolution-readout{font-size:11px;padding:5px 8px;gap:3px 8px}.resolution-picker{padding:5px 8px;gap:6px}.resolution-picker select{font-size:11px}.mtf-descriptions{font-size:10px}.resolution-profile{height:35px}.resolution-profile svg{height:22px}}

#quality-toolbar{display:flex;align-items:center;gap:10px;justify-content:space-between;background:white;border:1px solid #b9c7d2;margin-bottom:10px}
#quality-toolbar[hidden]{display:none}
#quality-toolbar .mode-switch{padding:7px;border:0;flex-wrap:nowrap}
#quality-toolbar .resolution-picker{padding:7px 10px;border:0}
#quality-toolbar .resolution-picker select{max-width:340px}
#quality-toolbar #resolution-tools{flex:1;min-width:260px}
#workbench[data-chapter=quality] .metric strong{font-size:17px;white-space:nowrap}
#workbench[data-chapter=quality] .metric p{font-size:9px}
@media(max-width:999px){#quality-toolbar{flex-wrap:wrap;gap:0}#quality-toolbar #resolution-tools{flex-basis:100%}#quality-toolbar .resolution-picker select{max-width:none}}

.resolution-unavailable{justify-content:center;align-items:center;font-size:12px;text-align:center;line-height:1.6}.resolution-unavailable h3{font-size:16px;margin:0}.resolution-unavailable p{max-width:52ch}.resolution-unavailable button{font-size:12px}
.resolution-unavailable{overflow-y:auto;padding:16px;gap:8px}
.resolution-unavailable>p{margin:0}
.resolution-limit-causes{list-style:none;margin:0;padding:0;text-align:left;max-width:100%}
.resolution-limit-causes li{padding:2px 0}
.resolution-recovery-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:6px}
.resolution-unavailable .resolution-recovery-note{font-size:11px;color:#526b7c}
.resolution-unavailable details{max-width:100%;text-align:left}
.resolution-unavailable details summary{cursor:pointer;color:#185683}

#workbench[data-chapter=quality] .metric strong{display:flex;gap:4px;align-items:baseline;flex-wrap:wrap;white-space:normal}
#workbench[data-chapter=quality] .metric strong>span{white-space:nowrap}
#workbench[data-chapter=quality] .metric-unit{font-size:12px;font-weight:600}
#large-figure .resolution-view{height:min(62vh,600px)}
#large-figure .resolution-profile svg{min-width:0}

.mtf-sine-pair{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding-left:26px;height:20px;flex:none}
.mtf-sine-pair svg{display:block;width:100%;height:20px}
.mtf-chart{display:grid;grid-template-columns:26px 1fr;grid-template-rows:minmax(60px,1fr) 16px;flex:1;min-height:80px;font-size:11px;color:#40586c}
.mtf-y{display:flex;flex-direction:column;justify-content:space-between;line-height:1;text-align:left}
.mtf-plot{position:relative;min-height:0}.mtf-plot svg{width:100%;height:100%;display:block}
.mtf-x{grid-column:2;display:flex;justify-content:space-between;line-height:16px}
.mtf-nyquist{position:absolute;top:3px;transform:translateX(5px);font-size:10px;color:#805200;background:#fff4dedb}
#large-figure .mtf-chart svg,#large-figure .mtf-sine-pair svg{min-width:0}

/* Size the whole selectable image to its available box without stretching. */
.image-mat{container-type:size}
.image-mat>.image-wrap{width:min(100cqw,calc(100cqh * var(--image-ratio)));height:auto;max-height:none}

#control-extras .control-response{background:#f7f9fb;color:#29475d;border-left:0;border-top:1px solid #d1dce4;padding:7px 12px}#control-extras .control-response summary{font-size:12px;cursor:pointer}#control-extras .control-response details[open] summary{margin-bottom:10px}#control-extras .control-response strong small{color:#657b8d}

.reading-equation{padding:14px 16px;margin:18px 0;border-left:3px solid #1264a3;background:#eef3f7;line-height:1.85;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.reading-section .frequency-spaces{grid-template-columns:1fr}.reading-section .target-meaning{padding:0;border:0}.resolution-picker>.term-button{white-space:nowrap}.reading-section p{line-height:1.8}

/* One detector choice applies to the complete experiment. */
.sensor-choice{display:flex;align-items:center;gap:7px;font-size:12px;color:#496174}.sensor-choice select{max-width:270px;min-height:38px;background:#fff;color:#172d40;border:1px solid #aebdca;padding:5px 8px}
.sensor-profiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:10px;margin:16px 0}.sensor-profiles button{display:grid;gap:6px;text-align:left;padding:14px}.sensor-profiles button[aria-pressed=true]{background:#173d55;color:white;border-color:#173d55}.sensor-values{display:grid;grid-template-columns:1fr 1fr;gap:14px;border-top:1px solid #cbd5df;padding-top:16px}.sensor-values div{margin:0}.sensor-values dt{font-size:12px;color:#496174}.sensor-values dd{margin:3px 0;font-size:17px;font-weight:650}.sensor-qe{width:100%;height:auto;margin:12px 0}.sensor-qe text{font:11px system-ui;fill:#344d60}.sensor-data details,.hardware-custom{margin-top:20px;border-top:1px solid #cbd5df;padding-top:14px}.sensor-data summary,.hardware-custom summary{cursor:pointer;font-weight:650}.sensor-data h3{margin-top:24px}.hardware-custom .detector-dimensions{grid-template-columns:1fr}.sensor-data p{line-height:1.75}

/* Technical links are recognisable before hover, including calculated metrics. */
.term-button,.control label button,button[data-term]{font-weight:700;color:#185683;border-bottom:1px dotted #185683;text-underline-offset:3px}
.term-button:hover,.control label button:hover{color:#064b8e;border-bottom-style:solid;background:#eaf2f8}
.term-button:focus-visible{outline:2px solid #cf7c14;outline-offset:3px}
.mechanism-panel>.part-inspector{margin:0;border-top:1px solid #c0cbd5;border-left:3px solid #cb750e}
.explanation-grid:has(>.mechanism-explanations:empty):has(>.analysis-explanations[hidden]){display:none}
.scene-scale{position:absolute;inset:0;pointer-events:none;color:white}
.scene-scale svg{display:block;width:100%;height:100%;overflow:visible}
.scene-scale .scale-label{position:absolute;left:4%;bottom:8%;font-size:10px;font-weight:650;text-shadow:0 1px 3px #000,0 0 3px #000;line-height:1.4}
.scene-scale .framing-label{position:absolute;right:8px;bottom:8px;background:#16222ddd;font-size:9px;padding:3px 5px;max-width:55%;text-align:right}

@media(min-width:761px){.reader,.reader.glossary-reader{width:min(620px,calc(100vw - 48px))}.hardware-custom .detector-dimensions{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.detector-dimensions label{min-width:0}.detector-dimensions input{min-width:0;width:100%}.hardware-custom .detector-presets{display:flex;gap:6px;flex-wrap:wrap}}
@media(min-width:1700px){.reader,.reader.glossary-reader{width:660px}}

svg text[data-term],svg [data-term] text{font-weight:700}

/* Inline figures fit the reader; full-size inspection is an explicit action. */
.reader-body .reading-figure svg{min-width:0;width:100%;height:auto}
.reader-body{overflow-anchor:none}
#workbench[data-chapter=overview] .mechanism-explanations{display:none}
#workbench[data-chapter=overview] .explanation-grid{grid-template-columns:1fr}

#figure-dialog .figure-dialog-bar{position:sticky;top:0;z-index:2;background:#f8f8f7}

/* Secondary light controls stay within each optical/sampling experiment without competing with geometry. */
@media(min-width:1000px){
 #workbench[data-chapter=optics] .scene-observation{height:clamp(360px,44svh,420px)}
 #workbench[data-chapter=optics] #experiment-controls{margin:0;border:0;border-top:1px solid #bbc7d2}
 #workbench[data-chapter=optics] #controls{grid-template-columns:repeat(2,minmax(0,1fr))}
 #workbench[data-chapter=optics] #controls .aperture-coupling{flex-wrap:wrap;gap:5px 12px}
 #workbench[data-chapter=optics] #controls .aperture-lock{flex:1 0 100%;flex-wrap:wrap;gap:6px 12px}
 #workbench[data-chapter=optics] #controls [data-aperture-summary]{min-width:0}
 #workbench[data-chapter=optics] #controls .context-actions{flex-wrap:wrap}
}
.secondary-light-controls{grid-column:1/-1;border-top:1px solid #c8d4de;padding-top:8px}
.secondary-light-controls>summary{cursor:pointer;font-size:12px;color:#234b66}
.secondary-light-controls>summary strong{font-size:13px}
.secondary-light-controls>summary span{margin-left:14px;font-size:11px;color:#536d81;font-variant-numeric:tabular-nums}
.secondary-control-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}
@media(max-width:1100px){.secondary-control-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.secondary-light-controls>summary span{display:block;margin:4px 0 0 16px}.secondary-control-grid{grid-template-columns:1fr}}

/* A single reading surface keeps diagrams and prose together. */
body.camera-reading-open{overflow:hidden}
#reader{position:fixed;inset:4vh auto 4vh 50%;transform:translateX(-50%);margin:0;width:min(860px,calc(100vw - 40px));height:92vh;max-height:none;max-width:none;padding:0;border:1px solid #aebdc8;background:#fff;color:#1d303f;display:flex;flex-direction:column;box-shadow:0 16px 70px #081b3440;z-index:100}
#reader[hidden]{display:none}
#reader::backdrop{background:#102330a3}
#reader .reader-head{padding:22px 28px 18px;flex:none}
#reader .reader-head h2{font-size:25px;line-height:1.25}
#reader .reader-navigation{padding:9px 28px;background:#f4f6f7;flex:none}
#reader .reader-body{padding:22px 28px 32px;min-height:0;flex:1;overflow:auto;overscroll-behavior:contain;font-size:16px;line-height:1.8}
#reader .reader-index{display:flex;flex-wrap:wrap;gap:4px 18px;margin:0 0 24px;padding:0 0 18px;border:0;border-bottom:1px solid #ccd6dd;background:none}
#reader .reader-index button{display:inline;border:0;padding:2px 0;background:none;color:#245c80;text-align:left;font-size:13px;font-weight:600;line-height:1.65;text-decoration:underline;text-underline-offset:3px}
#reader .reader-contents{margin:14px 0 20px;border-block:1px solid #d4dce3;padding:8px 0}
#reader .reader-contents>summary{cursor:pointer;color:#245c80;font-size:13px;font-weight:600}
#reader .reader-contents .reader-index{margin:10px 0 0;padding:0;border:0}
#reader .reader-contents .reader-concepts-title{font-size:13px;margin:18px 0 0;color:#344b5e}
#reader .reader-concepts button{font-weight:700}
.isp-stage-explanation .term-button{font:inherit;font-weight:700;letter-spacing:inherit}
#reader .reading-section{padding-top:24px;margin-top:24px;border-top:1px solid #ccd6dd}
#reader .reading-section h3{font-size:20px;line-height:1.4;margin:0 0 14px}
#reader .reading-section p{margin:12px 0 20px}
#reader .reading-figure{margin:20px 0;padding:12px;border:1px solid #d1dce4}
#reader .reading-figure-scroll{overflow:auto}
#reader .reading-figure svg{display:block;max-width:100%;min-width:0;height:auto}
.sensor-choice[hidden]{display:none}
.inline-detector{padding:16px 18px;border-top:1px solid #bbc7d2;background:#f7f9fa}
.inline-detector-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}
.inline-detector-heading h3{font-size:15px;margin:0}
.inline-detector-heading button{border:0;background:none;color:#185683;font-size:12px;text-decoration:underline;text-underline-offset:3px;padding:2px 0}
.inline-detector .sensor-profiles{margin:12px 0;gap:8px}
.inline-detector .sensor-profiles button{padding:10px;gap:4px;font-size:12px}
.inline-detector .sensor-profiles small{font-size:11px}
.inline-detector .hardware-custom{margin-top:12px;padding-top:10px}
.inline-detector .hardware-custom h3{font-size:13px;margin:0 0 10px}
.inline-detector .detector-presets{display:flex;flex-wrap:wrap;gap:5px;margin:0 0 12px}
.inline-detector .detector-presets button{font-size:11px;padding:6px 8px}
.inline-detector .detector-dimensions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.inline-detector .detector-dimensions label{font-size:12px}
.inline-detector .detector-dimensions input{width:100%;min-width:0;padding:7px 8px}
.system-flow>li{display:block}
.system-flow>li>button[data-flow]{display:flex;align-items:center;gap:12px;min-width:0;border:0;border-radius:0}
.system-flow>li>button[data-related=true]{background:#eef5fa}
.system-flow>li>button[data-related=true] .flow-num{border-color:#0865cf;color:#075bba}
.system-flow>li>button[aria-expanded=true]{color:#075bba}
.system-flow>li>button[aria-expanded=true] .flow-num{background:#0865cf;border-color:#0865cf;color:#fff}
.system-flow .flow-detail{padding:2px 0 17px 38px;color:#4b5764;font-size:14px;line-height:1.75}
.system-flow .flow-detail h4{font-size:14px;line-height:1.5;color:#243947;margin:0 0 7px}
.system-flow .flow-detail p{margin:0}
.system-support p{margin:12px 0 0;line-height:1.7}
.system-support button{display:inline;border:0;border-bottom:1px dotted #185683;background:none;color:#185683;font:inherit;font-weight:600;padding:0}
.lux-scale{display:flex;justify-content:space-between;gap:4px;font-size:10px;color:#60778a;font-variant-numeric:tabular-nums}
.motion-lux-slider{flex:1;min-width:0}
.motion-control>span>label{font:inherit}
#controls .control[data-control-card=radiance]>.lux-scale{margin-right:81px}
#reader .reading-section{box-shadow:none;border-left:0;border-right:0;border-bottom:0;background:transparent}
#reader .reader-index+.reading-section{margin-top:0;border-top:0;padding-top:2px}
#reader .reader-contents+.reading-section{margin-top:0;border-top:0;padding-top:2px}
#reader .specification-groups{list-style:none;padding:0;margin:0}
#reader .specification-groups li{margin:0 0 14px;padding:0;line-height:1.75}
#workbench[data-chapter=optics] .mechanism-panel>.mechanism-explanations{border:0;border-top:1px solid #bccad5;margin:0}
#workbench[data-chapter=optics] .mechanism-panel .ray-reading{display:block;padding:16px 18px}
#workbench[data-chapter=optics] .refraction-detail[open]{display:block}
#workbench[data-chapter=optics] .refraction-body{display:grid;gap:12px;margin-top:14px}
#workbench[data-chapter=optics] .refraction-body>p{margin:0}
#workbench[data-chapter=optics] .refraction-body>figure{margin:0;max-width:none}
#workbench[data-chapter=optics] .refraction-body svg{display:block;width:100%;height:auto}
#workbench[data-chapter=optics] .explanation-grid:has(>.analysis-explanations[hidden]){display:none}
@media(max-width:760px){
 #reader{inset:8px;width:calc(100vw - 16px);height:calc(100dvh - 16px);transform:none}
 #reader .reader-head{padding:16px 18px 12px}#reader .reader-head h2{font-size:21px}
 #reader .reader-navigation{padding:8px 18px}#reader .reader-body{padding:18px;font-size:15px}
 .inline-detector .detector-dimensions{grid-template-columns:1fr 1fr}.inline-detector .detector-dimensions label:last-child{grid-column:1/-1}
}
@media(max-width:540px){#controls .control[data-control-card=radiance]>.lux-scale{margin-right:66px}}
@media(max-width:760px){.motion-controls .motion-extra{grid-template-columns:1fr}}
@media(min-width:1000px){
 #workbench[data-chapter=pixel] #experiment-controls{margin:0;border:0;border-top:1px solid #bbc7d2}
 #workbench[data-chapter=pixel] #controls{grid-template-columns:repeat(2,minmax(0,1fr))}
 #workbench[data-chapter=pixel] .mechanism-panel>.mechanism-explanations{border:0;border-top:1px solid #bbc7d2;margin:0;padding:16px 18px}
 #workbench[data-chapter=pixel] .explanation-grid:has(>.analysis-explanations[hidden]){display:none}
}
/* Actions with the same role share a baseline, including the film link. */
#workbench .reading-tools>:is(button,.film-entry){display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:8px 12px;font-family:inherit;font-size:13px;font-weight:600;line-height:1.4}
#workbench .reading-tools>.film-entry>span{font-size:15px;line-height:1}
#workbench .panel-bar button{min-height:30px;padding:5px 8px;font-size:11px;line-height:1.4}
#controls .range-row .exact-value{min-height:34px;padding:7px 6px;font-size:13px;line-height:1.25}
@media(max-width:760px){#workbench .reading-tools>:is(button,.film-entry){min-height:40px}}

/* Pair captions share rows, so both exposure images start at the same height. */
.motion-pair{grid-template-rows:auto auto auto}
.motion-card{display:grid;grid-row:span 3;grid-template-rows:subgrid;row-gap:0}
.motion-card header{flex-direction:column;align-items:flex-start;justify-content:space-between}
.motion-card canvas{align-self:start}
/* Model access belongs beside component selection; it is not an experiment step. */
.component-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-basis:100%;min-width:0}
.component-heading label{flex-basis:auto}
.mechanism-preview .component-heading #show-model{margin-left:auto;border:0;background:transparent;color:#275d7e;text-decoration:underline;text-underline-offset:3px;font-size:12px;white-space:nowrap}
.scene-context{display:flex;justify-content:space-between;align-items:baseline;gap:6px 16px;flex-wrap:wrap;flex:none;padding:6px 10px;background:#f6f8fa;border-bottom:1px solid #d5dde4;font-size:11px;line-height:1.45;color:#476174}
.scene-context .scene-tag{position:static;background:none;color:inherit;padding:0;font:inherit;letter-spacing:normal}
/* Captions and results cannot consume the mobile image's own space. */
@media(max-width:999px){
 .scene-observation{height:auto}
 .mechanism-preview:has(#camera-model:not([hidden])){height:clamp(420px,62svh,560px)}
 .scene-preview{flex:none}
 .image-mat{flex:none;height:clamp(220px,46svh,360px)}
}
@media(max-width:760px),(pointer:coarse){
 .mechanism-preview .component-heading #show-model{min-height:44px;padding:8px 0}
 .component-heading label{flex-basis:auto}
}