:root{color-scheme:dark;font-synthesis:none;--field:#0d0b18;--field-soft:#171329;--ink:#f6f2ff;--ink-muted:#c9c0e5;--ink-faint:#8d83b2;--rule:#4d46728c;--grid:#302a4e;--spine:#4d4672;--accent:#b59bff;--summary:#67d7c4;--warm:#f2a65a;--alert:#e57fa6;--panel:#171329;--plate:#171329b8;--solid:#efe7ff;--void:#2a2542}
*{box-sizing:border-box}
html,body{width:100%;height:100%;min-height:100svh;margin:0;overflow:hidden}
body{background:var(--field);color:var(--ink);font-family:Helvetica Neue,Helvetica,Arial,sans-serif}
button{color:inherit;font:inherit}button:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.same-marginals{background:radial-gradient(circle at 50% 46%, #b59bff1a, transparent 38%), radial-gradient(circle at 16% 12%, #67d7c40d, transparent 26%), linear-gradient(160deg, var(--field-soft), var(--field) 48%, #07060f);width:100%;height:100svh;color:var(--ink);transition:background .7s,color .48s}
.same-marginals.theme-paper{color-scheme:light;--field:#e7dfd2;--field-soft:#f5efe4;--ink:#271e1b;--ink-muted:#62564f;--ink-faint:#94877b;--rule:#806f6457;--grid:#d7ccc0;--spine:#806f64;--accent:#9c3038;--summary:#1c6673;--warm:#b16d28;--alert:#9c3038;--panel:#f5efe4;--plate:#f5efe4db;--solid:#5c1f24;--void:#d9d0c3;background:radial-gradient(circle at 50% 44%, #fffcf69e, transparent 42%), linear-gradient(135deg, #9c303809, transparent 40%), var(--field)}
.field-stage{isolation:isolate;cursor:crosshair;touch-action:none;width:100%;height:100%;position:relative;overflow:hidden}
.field-stage:before{z-index:0;content:"";pointer-events:none;opacity:.42;background-image:linear-gradient(var(--rule) 1px, transparent 1px), linear-gradient(90deg, var(--rule) 1px, transparent 1px);background-position:50%;background-size:min(7vw,88px) min(7vw,88px);transition:opacity .5s;position:absolute;inset:0;-webkit-mask-image:radial-gradient(circle,#000 0%,#0000 68%);mask-image:radial-gradient(circle,#000 0%,#0000 68%)}
.theme-paper .field-stage:before{opacity:.28}
.field-canvas{z-index:2;pointer-events:none;touch-action:none;width:100%;height:100%;display:block;position:absolute;inset:0}
.study-header{z-index:3;pointer-events:none;width:min(560px,52vw);position:absolute;top:clamp(22px,4vw,60px);left:clamp(20px,4.6vw,72px)}
.study-registration{color:var(--ink-muted);letter-spacing:.14em;text-transform:uppercase;flex-wrap:wrap;align-items:center;gap:10px 16px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10px;display:flex}
.study-registration b{color:var(--ink-faint);font-weight:500}
.study-header h1{letter-spacing:-.068em;margin:clamp(16px,2.2vw,30px) 0 0;font-size:clamp(36px,5.2vw,88px);font-weight:450;line-height:.76}
.study-header>p{color:var(--ink-muted);letter-spacing:.01em;margin:clamp(16px,1.8vw,26px) 0 0 3px;font-size:clamp(13px,1.05vw,17px)}
.theme-switch{z-index:4;min-height:42px;color:var(--ink-faint);cursor:pointer;letter-spacing:.14em;text-transform:uppercase;background:0 0;border:0;align-items:center;gap:10px;padding:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10px;display:flex;position:absolute;top:clamp(20px,3.8vw,58px);right:clamp(20px,4.6vw,72px)}
.theme-switch span.is-active{color:var(--ink)}
.theme-switch i{background:var(--rule);width:38px;height:1px;display:block;position:relative}
.theme-switch i:after{background:var(--ink);content:"";border-radius:50%;width:7px;height:7px;transition:transform .42s cubic-bezier(.16,1,.3,1);position:absolute;top:-3px;left:0;transform:translate(31px)}
.theme-paper .theme-switch i:after{transform:translate(0)}
.method-reading{z-index:3;pointer-events:none;grid-template-columns:38px 1fr;gap:16px;width:min(360px,32vw);display:grid;position:absolute;bottom:clamp(118px,15vh,176px);right:clamp(20px,4.6vw,72px)}
.method-index{color:var(--accent);letter-spacing:.12em;padding-top:5px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10px}
.method-reading h2{letter-spacing:-.035em;margin:0;font-size:clamp(22px,2vw,32px);font-weight:450}
.method-claim{color:var(--summary);letter-spacing:.12em;text-transform:uppercase;margin:6px 0 0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:9px}
.method-reading p{max-width:320px;color:var(--ink-muted);margin:10px 0 16px;font-size:12px;line-height:1.55}
.method-reading p.method-pending{color:var(--warm);margin-top:-8px}
.method-reading dl{gap:16px 18px;margin:0;display:flex;flex-wrap:wrap}
.method-reading dl div{align-items:baseline;gap:8px;display:flex}
.method-reading dt,.method-reading dd{letter-spacing:.1em;text-transform:uppercase;margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:9px}
.method-reading dt{color:var(--ink-faint)}
.method-reading dd{color:var(--ink-muted);font-variant-numeric:tabular-nums}
.method-nav{z-index:4;border-top:1px solid var(--rule);grid-template-columns:repeat(3,minmax(90px,1fr));display:grid;position:absolute;bottom:clamp(22px,4vw,58px);left:clamp(20px,4.6vw,72px);right:clamp(20px,4.6vw,72px)}
.method-nav button{min-height:56px;color:var(--ink-faint);cursor:pointer;letter-spacing:.02em;text-align:left;background:0 0;border:0;align-items:center;gap:12px;padding:16px 16px 0 0;font-size:12px;transition:color .24s;display:flex;position:relative}
.method-nav button:before{background:var(--ink);content:"";opacity:0;transform-origin:0;height:1px;transition:transform .42s cubic-bezier(.16,1,.3,1),opacity .24s;position:absolute;top:-1px;left:0;right:22%;transform:scaleX(0)}
.method-nav button:hover,.method-nav button.is-active{color:var(--ink)}
.method-nav button.is-active:before{opacity:1;transform:scaleX(1)}
.method-nav button span{color:var(--accent);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:9px}
.study-tools{z-index:4;flex-wrap:wrap;align-items:center;gap:18px;min-height:44px;display:flex;position:absolute;bottom:clamp(92px,12vh,138px);left:clamp(20px,4.6vw,72px)}
.study-tools button{min-height:44px;color:var(--ink-muted);cursor:pointer;letter-spacing:.11em;text-transform:uppercase;background:0 0;border:0;align-items:center;gap:8px;padding:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:9px;display:flex}
.study-tools button:hover,.study-tools button.is-active{color:var(--ink)}
.tool-dot{border:1px solid;border-radius:50%;width:6px;height:6px;display:block}
#ranksBtn.is-active .tool-dot{border-color:var(--warm);background:var(--warm)}
#pairsBtn.is-active .tool-dot{border-color:var(--accent);background:var(--accent);box-shadow:0 0 10px color-mix(in srgb, var(--accent) 55%, transparent)}
.drag-note{color:var(--ink-faint);letter-spacing:.11em;text-transform:uppercase;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:9px}
.drag-note:before{background:var(--rule);content:"";width:18px;height:1px;margin:0 10px 3px 0;display:inline-block}
.use-plate{z-index:6;border:1px solid var(--rule);background:var(--plate);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);cursor:default;opacity:.72;pointer-events:auto;width:min(312px,28vw);padding:12px 12px 10px;transition:opacity .28s,box-shadow .28s;position:absolute;bottom:clamp(148px,20vh,228px);left:clamp(20px,4.6vw,72px)}
.use-plate:hover,.use-plate:focus-within,.use-plate.is-inspecting{z-index:6;background:var(--panel);isolation:isolate;opacity:1;-webkit-backdrop-filter:none;backdrop-filter:none;box-shadow:0 18px 40px #07060f47}
.use-plate header{color:var(--ink-faint);letter-spacing:.12em;text-transform:uppercase;justify-content:space-between;gap:12px;margin-bottom:8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:8px;display:flex}
.use-plate canvas{width:100%;height:auto;display:block}
.use-plate figcaption{color:var(--ink-muted);letter-spacing:.08em;text-transform:uppercase;justify-content:space-between;gap:10px;margin:8px 0 0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:8px;line-height:1.45;display:flex}
.field-keys{z-index:4;pointer-events:none;flex-direction:column;align-items:flex-end;gap:12px;display:flex;position:absolute;top:50%;right:clamp(20px,4.6vw,72px);transform:translateY(-50%)}
.field-key{align-items:center;gap:10px;display:none}
.field-key.is-visible{display:flex}
.field-key .key-dot{border-radius:50%;width:6px;height:6px;display:block}
.key-dot-warm{background:var(--warm);box-shadow:0 0 12px color-mix(in srgb, var(--warm) 70%, transparent)}
.key-dot-accent{background:var(--accent);box-shadow:0 0 12px color-mix(in srgb, var(--accent) 70%, transparent)}
.field-key p{color:var(--ink-muted);letter-spacing:.12em;text-transform:uppercase;margin:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:8px}
.registration-corner{z-index:3;pointer-events:none;opacity:.55;width:16px;height:16px;position:absolute}
.registration-corner:before,.registration-corner:after{background:var(--spine);content:"";position:absolute}
.registration-corner:before{width:16px;height:1px}
.registration-corner:after{width:1px;height:16px}
.registration-corner-nw{top:12px;left:12px}
.registration-corner-se{bottom:12px;right:12px;transform:rotate(180deg)}
.field-loader{z-index:5;flex-direction:column;align-items:center;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--ink-muted);transition:opacity .4s}
.field-loader.is-hidden{opacity:0;pointer-events:none;display:none}
.field-loader span{border:1px solid var(--rule);border-top-color:var(--ink);border-radius:50%;width:26px;height:26px;animation:1.1s linear infinite field-spin}
.field-loader p,.field-fallback span{letter-spacing:.14em;text-transform:uppercase;margin:12px 0 0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:8px}
.field-fallback{z-index:5;flex-direction:column;align-items:center;display:flex;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;width:min(300px,80vw);color:var(--ink-muted)}
.field-fallback[hidden]{display:none}
.field-fallback p{margin:0;font-size:17px}
.sr-only{clip:rect(0,0,0,0);width:1px;height:1px;position:absolute;overflow:hidden}
@keyframes field-spin{to{transform:rotate(360deg)}}
@media (width<=860px){.use-plate{width:min(240px,42vw);bottom:clamp(154px,22vh,210px)}.method-reading p,.drag-note{display:none}}
@media (width<=700px){.study-header{width:calc(100vw - 40px)}.study-header h1{font-size:clamp(38px,12vw,64px)}.method-reading{width:auto;bottom:150px;left:20px;right:20px}.use-plate{display:none}.method-nav{bottom:18px;left:20px;right:20px}.method-nav button{flex-direction:column;align-items:flex-start;gap:4px;min-height:50px;padding-top:8px;font-size:10px}.study-tools{bottom:86px;left:20px}.field-keys{display:none}}
@media (width<=900px) and (height<=500px){.use-plate{display:none}}
@media (width<=420px){.theme-switch{gap:6px}.theme-switch span{display:none}.theme-switch i{width:32px}.theme-switch i:after{transform:translate(25px)}.theme-paper .theme-switch i:after{transform:translate(0)}}
@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
  




.series-chip{color:var(--ink-faint);letter-spacing:.12em;text-transform:uppercase;text-decoration:none;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10px;transition:color .2s;display:inline-flex;align-items:center;gap:8px;pointer-events:auto;white-space:nowrap}
.series-chip:hover,.series-chip:focus-visible{color:var(--accent)}
.series-chip:before{content:"";width:12px;height:1px;background:currentColor;opacity:.55}


/* SAME repair: readable controls and a flow layout on narrow screens. */
[hidden]{display:none!important}
.method-reading p{font-size:14px;line-height:1.5;max-width:36ch}
.method-reading dt,.method-reading dd,.method-claim,.method-index{font-size:11px;letter-spacing:.04em}
.method-reading dl{gap:10px 16px;flex-wrap:wrap}
.method-nav button{font-size:14px}.study-tools{gap:14px}
.study-tools button{font-size:11px;letter-spacing:.055em}
.use-plate{opacity:.92;z-index:4}.use-plate header,.use-plate figcaption{font-size:10px;letter-spacing:.035em}
.study-registration,.theme-switch,.series-chip{font-size:11px;letter-spacing:.06em}
.method-reading .measurement-scope{grid-column:1/-1;font-size:12px;color:var(--ink-muted);margin:10px 0 0}
.earth-split-readout{grid-column:1/-1}.earth-split-readout p{font-size:13px;margin:5px 0}
.read-study{white-space:nowrap}.study-dialog{color:var(--ink);background:var(--panel);border:1px solid var(--rule);border-radius:8px;width:min(720px,calc(100vw - 32px));max-height:85svh;padding:28px;overflow:auto;font-size:16px;line-height:1.6}
.study-dialog::backdrop{background:#07060fb8;backdrop-filter:blur(4px)}
.study-dialog h2{font-size:28px;line-height:1.15;margin:0 50px 22px 0;font-weight:500;letter-spacing:-.025em}
.study-dialog h3{font-size:16px;color:var(--summary);margin:24px 0 6px}.study-dialog p{margin:8px 0 18px;color:var(--ink-muted)}
.study-dialog .close-reading{position:sticky;float:right;top:0;background:var(--panel);border:1px solid var(--rule);padding:9px 12px;cursor:pointer;border-radius:4px;color:var(--ink)}
.study-dialog details{border-top:1px solid var(--rule);padding-top:16px}.study-dialog summary{cursor:pointer;color:var(--ink)}
.study-dialog .focus-values{font:14px/1.6 ui-monospace,monospace;white-space:pre-wrap;background:var(--field);padding:16px}
.study-dialog canvas{width:100%;height:auto;border:1px solid var(--rule)}
.field-loader.is-hidden{visibility:hidden}.field-loader.is-hidden span{animation:none}
@media(max-width:700px){
 html.mobile-reading,html.mobile-reading body{height:auto;min-height:100svh;overflow:auto}
 html.mobile-reading body>[id=app]{height:auto;min-height:100svh;padding-bottom:28px}
 .mobile-heading{position:relative;padding:24px 20px 10px}
 .mobile-heading .study-header{position:static;width:auto;max-width:none}
 .mobile-heading .study-header h1{font-size:clamp(38px,10.5vw,58px);line-height:.96;letter-spacing:-.06em;margin-top:28px}
 .mobile-heading .study-header>p{font-size:16px;margin:16px 0 0;line-height:1.45}
 .mobile-heading .study-registration{padding-right:0;font-size:10px;gap:8px 12px}
 .mobile-heading .theme-switch{position:relative;top:auto;right:auto;min-height:40px;margin-left:auto;gap:8px;font-size:11px}
 .mobile-heading .theme-switch span{display:inline}
 .mobile-reading .field-stage{height:clamp(320px,104vw,520px);width:100%;touch-action:pan-y}
 .mobile-reading .same-n .field-stage,.mobile-reading .same-earth .field-stage,.mobile-reading .same-shadow .field-stage{touch-action:none}
 .mobile-reading .same-earth.is-split .field-stage{height:740px}
 .mobile-flow{padding:0 20px;display:flex;flex-direction:column;gap:20px}
 .mobile-flow .method-nav,.mobile-flow .study-tools,.mobile-flow .method-reading,.mobile-flow .use-plate,.mobile-flow .field-keys{position:static;inset:auto;transform:none;width:100%;max-width:none;margin:0;display:flex}
 .mobile-flow .method-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
 .mobile-flow .method-nav button{font-size:14px;min-height:58px;padding:12px 4px 8px 0;gap:6px}
 .mobile-flow .study-tools{flex-wrap:wrap;gap:8px 18px;min-height:44px}
 .mobile-flow .study-tools button{font-size:12px;min-height:44px}
 .mobile-flow .method-reading{display:grid;grid-template-columns:28px minmax(0,1fr);gap:10px;pointer-events:auto}
 .mobile-flow .method-reading h2{font-size:27px}.mobile-flow .method-reading p{display:block;font-size:16px;max-width:none}
 .mobile-flow .method-reading dl{gap:12px 18px}.mobile-flow .method-reading dt,.mobile-flow .method-reading dd{font-size:12px}
 .mobile-flow .use-plate{display:block;opacity:1;box-shadow:none;padding:14px}
 .mobile-flow .use-plate header,.mobile-flow .use-plate figcaption{font-size:11px;line-height:1.45}
 .mobile-flow .field-keys{align-items:flex-start;gap:10px}.mobile-flow .field-key p{font-size:11px;line-height:1.5}
 .mobile-flow .drag-note{display:block;font-size:11px}
 .mobile-flow .use-plate figcaption{display:flex;flex-wrap:wrap}
 .same-earth.is-split .mobile-flow .use-plate{opacity:1;pointer-events:auto}
 .mobile-flow .study-tools .read-study{font-size:12px}
 .study-dialog{padding:20px}.study-dialog h2{font-size:25px}
}


.pixelated{image-rendering:pixelated}