:root{color-scheme:light;--paper:#f5f4ef;--card:#fffefa;--ink:#1c313a;--muted:#60717a;--line:#d8dfdd;--teal:#277365;--minus:#D23B3B;--plus:#2469B5;--sans:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.5}a{color:inherit;text-underline-offset:3px}button,input{font:inherit}button,a,input,summary{touch-action:manipulation}button,summary{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #c2943c;outline-offset:4px}[hidden]{display:none!important}
.skip-link{position:absolute;left:12px;top:-100px;background:white;padding:12px;z-index:100}.skip-link:focus{top:12px}.site-header{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:82px;padding:16px max(30px,calc((100vw - 1800px)/2));border-bottom:1px solid var(--line);background:var(--card)}.brand{display:flex;gap:11px;align-items:center;text-decoration:none;font-weight:650;letter-spacing:-.025em}.brand small{display:block;font-size:10px;font-weight:450;letter-spacing:.025em;color:var(--muted);margin-top:2px}.brand-mark{font-size:29px;color:var(--teal)}.site-header nav{display:flex;gap:24px;font-size:12px}.site-header nav a{text-decoration:none}.site-header nav a:hover{text-decoration:underline}
main{max-width:1860px;padding:38px 30px 0;margin:auto}.intro{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;margin-bottom:26px}.eyebrow{margin:0 0 8px;text-transform:uppercase;letter-spacing:.13em;font-size:10px;font-weight:650;color:var(--teal)}h1{margin:0;font-size:clamp(29px,3.1vw,45px);line-height:1.13;font-weight:530;letter-spacing:-.047em}h2,h3,p,figure{margin:0}h2{font-size:20px;font-weight:550;letter-spacing:-.025em;line-height:1.25}h3{font-weight:550}.lead{max-width:850px;margin-top:14px;font-size:14px;color:var(--muted);line-height:1.65}.method-link{font-size:11px;white-space:nowrap;padding-bottom:4px}.status{font-size:13px;color:var(--muted)}
.workspace{display:grid;grid-template-columns:minmax(290px,.88fr) minmax(0,2fr);gap:30px;border-top:1px solid var(--line);padding-top:24px}.atlas-column,.specimen-column{min-width:0}.section-heading{display:flex;justify-content:space-between;gap:12px;align-items:flex-end}.section-heading h2{font-size:17px}.section-heading .eyebrow{margin-bottom:6px}.text-link{font-size:11px;white-space:nowrap}.atlas-map{position:relative;margin:18px 0 15px;aspect-ratio:4/3;background:#fff;overflow:hidden;border:1px solid #e4e8e4;border-radius:9px}.atlas-map>img{width:100%;height:100%;display:block;object-fit:contain}.map-pins{position:absolute;inset:0}.pin{position:absolute;transform:translate(-50%,-50%);width:29px;height:29px;border:2px solid #fff;border-radius:50%;box-shadow:0 1px 6px #152d4859;display:grid;place-items:center;background:var(--pin-color);color:white;font-weight:750;font-size:12px;line-height:1;padding:0;text-shadow:0 1px 3px #000}.pin[aria-pressed=true]{outline:3px solid #172e37;outline-offset:3px;z-index:2}.sample-choices{display:flex;gap:7px;justify-content:space-between}.sample-choice{display:flex;align-items:center;justify-content:center;gap:8px;min-height:38px;flex:1;border:1px solid var(--line);border-radius:5px;background:var(--card);font-size:12px;color:var(--ink)}.sample-choice:before{content:'';width:9px;height:9px;border-radius:50%;background:var(--pin-color)}.sample-choice[aria-current=true]{border-color:#557b73;box-shadow:inset 0 -2px var(--teal);background:#eaf0e9}.map-note{font-size:11px;color:var(--muted);margin:13px 0 20px;max-width:46ch}
.parameter-card{border-top:1px solid var(--line);padding-top:18px}.specimen-title{display:flex;gap:12px;align-items:center}.sample-badge{width:40px;height:40px;border-radius:9px;background:var(--pin-color);display:grid;place-items:center;color:#fff;font-weight:700;font-size:21px;text-shadow:0 1px 3px #0003}.specimen-title .eyebrow{font-size:9px;margin-bottom:3px}.specimen-title h3{font-size:19px}.compact-parameters{display:grid;grid-template-columns:34px 1fr 34px 1fr;gap:7px 8px;margin:18px 0;font-size:11px}.compact-parameters dt{font-family:Georgia,serif;font-size:15px}.compact-parameters dd{margin:0;align-self:center;font-family:var(--mono);font-size:11px;overflow-wrap:anywhere}.parameter-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}.button-link,.quiet-button{font-size:11px;text-decoration:none;padding:9px 12px;border-radius:5px;border:1px solid var(--line);background:var(--card);color:var(--ink)}.button-link{background:var(--teal);border-color:var(--teal);color:white}.parameter-card details{margin-top:20px}.parameter-card summary,.computation-details summary{font-size:11px;color:var(--muted)}.exact-parameters{font-family:var(--mono);font-size:10px;line-height:1.7;margin:12px 0;overflow-wrap:anywhere}.exact-parameters dt{font-weight:650;margin-top:8px}.exact-parameters dd{margin:0}.fine-print{font-size:10px;color:var(--muted)}
.specimen-toolbar{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:16px}.specimen-toolbar h2{font-size:22px}.overlay-options{display:flex;gap:13px;white-space:nowrap;font-size:11px}.overlay-options label{display:flex;align-items:center;gap:5px;min-height:30px}input[type=checkbox]{accent-color:var(--teal)}.paired-panels{display:grid;grid-template-columns:1fr 1fr;gap:16px}.specimen-panel{min-width:0;border:1px solid var(--line);border-radius:10px;background:var(--card);overflow:hidden}.specimen-panel>figcaption{display:flex;justify-content:space-between;align-items:center;padding:17px 17px 10px;gap:8px}.specimen-panel h3{font-family:Georgia,serif;font-size:30px;font-weight:400;line-height:1}.specimen-panel h3 sub{font-size:16px}.specimen-panel figcaption p{font-size:11px;color:var(--muted);margin-top:8px}.expand-button{border:0;background:none;color:var(--muted);font-size:10px;padding:10px 0 10px 8px}.specimen-image{position:relative;aspect-ratio:1;isolation:isolate}.specimen-image>img,.specimen-image>svg{position:absolute;inset:0;width:100%;height:100%;display:block;object-fit:contain}.specimen-image>svg{pointer-events:none;overflow:hidden}.panel-bottom{display:flex;justify-content:space-between;gap:8px;align-items:center;padding:14px 16px 16px;border-top:1px solid #e9ebe4}.piece-legend{display:flex;gap:14px;font-size:10px}.piece-legend>span{display:flex;gap:5px;align-items:center}.swatch{display:inline-block;width:10px;height:10px;border-radius:2px}.minus{background:var(--minus)}.plus{background:var(--plus)}
.density-legend{display:flex;flex-direction:column;gap:7px;align-items:stretch;flex:1;min-width:0;line-height:1.2}.density-units{font-size:9px;line-height:1.45}.density-ticks{display:flex;justify-content:space-between;gap:5px}.density-tick{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:0;font:9px var(--mono)}.density-chip{display:block;width:26px;height:9px;border:1px solid #c9d0c9;border-radius:2px}.density-ramp{width:65px;height:9px;background:linear-gradient(to right,#fffefa,#3c4d56);border:1px solid #dde1db;border-radius:2px}.linked-pin{display:inline-flex;align-items:center;gap:4px;font-size:9px;margin-left:5px;white-space:nowrap}.linked-pin:before{content:'';display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--pin-color)}.fixed-point-note{font-size:10px;color:var(--muted);margin-top:5px}.specimen-panel[data-kind=D] .panel-bottom{align-items:flex-end}.specimen-panel[data-kind=D] .panel-bottom>.text-link{flex:none}.density-description{font-size:11px;color:var(--muted);margin-top:12px;line-height:1.65}
.reading-note{display:flex;align-items:center;gap:13px;border-left:2px solid #b9c9b9;padding:12px 15px;margin:20px 0 16px;background:#eef1e8}.reading-note p{font-size:12px;color:#42585d;line-height:1.6}.contact-mark{font-size:27px;color:#927340}.computation-details{padding:11px 0;border-top:1px solid var(--line)}.image-details{display:grid;grid-template-columns:1fr 1fr;gap:20px;font-size:11px;margin:14px 0;color:var(--muted);overflow-wrap:anywhere}.methods{display:grid;grid-template-columns:1.3fr 1fr;gap:65px;border-top:1px solid var(--line);padding:30px 0 35px;margin-top:35px}.methods h2{margin-bottom:15px}.methods p{font-size:12px;line-height:1.85;margin-top:12px;color:#53666d}.methods summary{font-size:13px}.formula{font-family:Georgia,serif;color:var(--ink);white-space:normal}.provenance{font-size:11px;color:var(--muted);margin:16px 0;max-height:350px;overflow:auto}.provenance pre{font:10px/1.7 var(--mono);white-space:pre-wrap;overflow-wrap:anywhere}footer{border-top:1px solid var(--line);padding:22px 30px;text-align:center;font-size:10px;color:var(--muted)}
dialog{border:1px solid #c9d3d2;border-radius:10px;padding:0;max-width:96vw;max-height:95dvh;width:1200px;background:var(--card);color:var(--ink)}dialog::backdrop{background:#06151ec9}.dialog-toolbar{display:flex;justify-content:space-between;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:15px 20px}.dialog-toolbar h2{font-size:18px}.dialog-toolbar>div{display:flex;gap:8px}.dialog-toolbar button{font-size:11px;border:1px solid var(--line);background:var(--card);color:var(--ink);padding:7px 10px;border-radius:4px}.dialog-viewport{overflow:auto;max-height:calc(95dvh - 115px);background:var(--card)}.dialog-image-wrap{position:relative;margin:auto;width:min(100%,calc(95dvh - 135px));aspect-ratio:1}.dialog-image-wrap.actual-pixels{width:var(--natural-size);max-width:none;margin:0}.dialog-image-wrap img,.dialog-image-wrap svg{position:absolute;inset:0;width:100%;height:100%;display:block}.dialog-image-wrap svg{pointer-events:none}#dialogNote{padding:10px 20px;font-size:10px;color:var(--muted)}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:1600px){.workspace{gap:40px}.paired-panels{gap:24px}.specimen-toolbar h2{font-size:26px}}
@media(max-width:1150px){main{padding:28px 22px 0}.site-header{padding:15px 22px}.workspace{grid-template-columns:minmax(260px,.78fr) minmax(0,1.5fr);gap:22px}.specimen-toolbar{align-items:start;flex-direction:column;gap:7px}.specimen-panel>figcaption{padding:14px 12px 8px}.panel-bottom{padding:12px 10px}.piece-legend{gap:8px}.intro .method-link{display:none}}
@media(max-width:860px){.workspace{grid-template-columns:1fr}.atlas-column{display:grid;grid-template-columns:1.1fr 1fr;gap:0 24px}.section-heading,.atlas-map,.sample-choices,.map-note{grid-column:1}.parameter-card{grid-column:2;grid-row:1/span 4;border:0;padding-top:0}.specimen-toolbar{flex-direction:row;align-items:flex-end}.methods{gap:30px}.site-header nav{gap:15px;font-size:11px}}
@media(max-width:580px){main{padding:24px 16px 0}.site-header{padding:14px 16px;align-items:flex-start;gap:13px;flex-direction:column}.site-header nav{gap:19px}.brand{font-size:15px}.intro{margin-bottom:21px}.lead{font-size:12px}.workspace{padding-top:20px}.atlas-column{display:block}.atlas-map{margin-top:14px}.map-note{max-width:none}.parameter-card{border-top:1px solid var(--line);padding-top:17px;margin-top:18px}.specimen-toolbar{margin-top:9px;flex-direction:column;align-items:flex-start;gap:9px}.specimen-toolbar h2{font-size:23px}.paired-panels{grid-template-columns:1fr;gap:20px}.specimen-panel>figcaption{padding:18px}.panel-bottom{padding:15px 18px}.piece-legend{font-size:12px;gap:18px}.density-units,.density-tick{font-size:10px}.density-chip{width:35px}.fixed-point-note{font-size:11px}.methods{grid-template-columns:1fr;gap:24px;margin-top:24px}.dialog-toolbar{align-items:flex-start;gap:12px;padding:13px}.dialog-toolbar h2{font-size:15px}.dialog-toolbar button{padding:6px}.dialog-toolbar>div{gap:4px}.dialog-image-wrap{width:100%}.image-details{grid-template-columns:1fr}footer{line-height:1.8;padding:20px}}