:root{color-scheme:light;--bg:#eee8dd;--panel:#faf7f0;--line:#cfc5b7;--text:#302b28;--muted:#71665d;--accent:#733d50;--warm:#aa4b2e;--ochre:#997333}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font:15px/1.65 "Segoe UI",system-ui,sans-serif;color:var(--text)}
header,main,footer{max-width:1460px;margin:auto;padding:26px 34px}
header{display:flex;align-items:center;justify-content:space-between;gap:35px;padding-top:46px;padding-bottom:28px;border-top:6px solid var(--text);border-bottom:1px solid var(--text)}
h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(34px,3.5vw,51px);font-weight:400;line-height:1.16;letter-spacing:-1.6px;margin:12px 0 16px}
h2{font-size:20px;font-weight:600;line-height:1.35;margin:0;letter-spacing:-.35px}h3{font-size:14px;color:var(--muted);font-weight:600}
p{margin:8px 0}.intro{max-width:860px;color:var(--muted)}.eyebrow{color:var(--accent);font-size:10px;letter-spacing:2.1px;font-weight:700}
a{color:var(--accent);text-underline-offset:5px;text-decoration-thickness:1px}a:hover{color:var(--warm)}.link{white-space:nowrap;border-bottom:1px solid var(--accent);padding-bottom:5px;text-decoration:none;font-size:13px}
.status{padding:11px 16px;border-left:3px solid var(--accent);background:#e6ded1;color:#63554c;font-size:13px;margin-bottom:24px}
.controls{display:flex;gap:14px;flex-wrap:wrap;align-items:end;padding-bottom:8px}label{display:flex;flex-direction:column;gap:6px;font-size:12px;font-weight:500;color:var(--muted)}
select,input[type=number]{font:14px "Segoe UI",system-ui;background:var(--panel);color:var(--text);padding:10px 11px;border:1px solid #bfb2a2;border-radius:3px;min-height:42px}
button{cursor:pointer;background:var(--accent);color:#fff8f0;border:1px solid var(--accent);border-radius:3px;padding:11px 17px;font:600 14px "Segoe UI",system-ui;transition:background .15s,border-color .15s}button:hover{background:#592b3b;border-color:#592b3b}button:disabled{opacity:.45;cursor:wait}
button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--warm);outline-offset:4px}
#newSeed{background:transparent;border-color:#ac9e8e;color:var(--text)}#newSeed:hover{background:#e1d7c9}
.subnote,.small{font-size:12px;color:var(--muted)}.subnote{margin:13px 0 22px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card,.panel{background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:22px}.card{border-top:3px solid #63564c}.card:nth-child(2){border-top-color:var(--accent)}.card:nth-child(3){border-top-color:var(--ochre)}
.cardhead{display:flex;align-items:center;gap:12px}.tag{font-family:Georgia,"Times New Roman",serif;font-size:22px;font-style:italic;color:#897461;padding-right:11px;border-right:1px solid var(--line);line-height:1.2}.card:nth-child(2) .tag{color:var(--accent)}.card:nth-child(3) .tag{color:var(--ochre)}
.card p{font-size:13px;color:var(--muted);min-height:43px;margin-top:13px}.card canvas{width:100%;height:auto;display:block}
.answer{font-size:17px;font-weight:650;padding-top:13px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums}.answer.correct{color:var(--accent)}.answer.wrong{color:var(--warm)}.small{margin-top:4px;font-variant-numeric:tabular-nums}
.playbar{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin:20px 0 30px}.playbar button{background:#e4dacc;border-color:#c8b9a8;color:var(--text)}.playbar button:hover{background:#d9ccbb}.playbar label{flex-direction:row;align-items:center}.playbar span{font-size:12px;color:var(--muted);max-width:720px}
input[type=checkbox],input[type=range]{accent-color:var(--accent)}.panel{margin:24px 0}
.sectionhead{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:22px;padding-bottom:19px;border-bottom:1px solid var(--line)}.sectionhead h2{font-family:Georgia,"Times New Roman",serif;font-size:28px;font-weight:400;letter-spacing:-.6px}.sectionhead a{font-size:13px}
.networktools{display:flex;gap:25px;align-items:center;flex-wrap:wrap}.networktools label{flex-direction:row;align-items:center}.networktools input[type=number]{width:88px}.networktools output{min-width:60px;font-variant-numeric:tabular-nums}.networktools strong{font-size:13px;color:var(--accent)}
.networkarea{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:24px;margin-top:22px}.networkarea aside{border-left:1px solid var(--line);padding-left:20px}#network{width:100%;height:auto;cursor:crosshair}#trace{width:100%;height:auto}#cell{font-size:13px;overflow-wrap:anywhere}
.cellbutton{display:flex;width:100%;justify-content:space-between;gap:10px;text-align:left;margin:5px 0;padding:7px 9px;background:#eee5d9;border:1px solid #dfd1c0;color:var(--text);font-size:11px;font-weight:400}.cellbutton:hover{background:#e5d8c8;border-color:#c6ae99}.cellbutton b{color:var(--accent);font-variant-numeric:tabular-nums}
.notes{margin:34px 0;color:var(--muted);max-width:1080px}.notes h2{color:var(--text);font-family:Georgia,"Times New Roman",serif;font-size:26px;font-weight:400;margin-bottom:13px}
footer{border-top:1px solid var(--text);color:var(--muted);font-size:12px;padding-bottom:38px}
table{width:100%;border-collapse:collapse;font-size:14px;margin:15px 0 27px;font-variant-numeric:tabular-nums}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line)}th{background:#ede4d8;color:#665649;font-size:12px;font-weight:600}tr:hover td{background:#f2ebdf}.metric{color:var(--accent)}
#error{color:#a63e26;padding:10px 0}#error:empty{display:none}::selection{background:#dbc2c9;color:#302b28}
@media(max-width:1000px){header,main,footer{padding-left:18px;padding-right:18px}.cards{grid-template-columns:1fr}.card canvas{max-width:450px;margin:auto}.networkarea{grid-template-columns:1fr}.networkarea aside{border-left:0;border-top:1px solid var(--line);padding:15px 0 0}.sectionhead{align-items:start;flex-wrap:wrap}header{display:block}.link{display:inline-block;margin-top:14px}.networktools{gap:12px}.panel{overflow-x:auto}}

/* One selected model, with directly selectable sources. */
[hidden]{display:none!important}.modeltabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-bottom:26px}.modeltabs button{background:transparent;color:var(--muted);border:0;border-bottom:3px solid transparent;border-radius:0;padding:15px 25px;font-size:16px}.modeltabs button[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent);font-weight:700}.modeltabs button:hover{background:#e7decf}
#status{margin:0 0 9px 5px}.single-simulation{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:32px}.arena-side .sectionhead{margin-bottom:0}.arena-side .subnote{margin:7px 0 0}.arena-figure{position:relative;max-width:630px;margin:auto}.arena-figure canvas{display:block;width:100%;height:auto}.speaker-target{position:absolute;transform:translate(-50%,-50%);width:42px;height:42px;min-height:0;background:transparent;border:2px solid transparent;border-radius:50%;padding:0}.speaker-target:hover,.speaker-target[aria-pressed=true]{background:#ae4e2d10;border-color:#ae4e2d}.speaker-target:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.speaker-target:disabled{opacity:.55}.arena-key{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;font-size:12px;color:var(--muted)}.source-key{color:#ae4e2d}.prediction-key{color:var(--accent)}.listening-side{padding:12px 0 0 26px;border-left:1px solid var(--line)}.source-angle{font:48px Georgia,serif;color:var(--warm)}.listening-side .subnote{margin:9px 0 18px}.audio-box{border-top:1px solid var(--line);padding-top:15px;margin:24px 0}.audio-buttons{display:flex;flex-wrap:wrap;gap:8px}.audio-buttons button{font-size:12px;padding:10px 12px;background:#e9dfd1;border-color:#cab9a6;color:var(--text)}.audio-buttons button:first-child{background:var(--accent);color:#fff8f0;border-color:var(--accent)}.volume-label{display:flex;flex-direction:row;align-items:center;margin-top:20px;gap:10px}.volume-label input{min-width:50px;width:110px}.quiet-button{background:transparent;color:var(--muted);border-color:var(--line);font-size:12px;padding:8px 12px}.quiet-button:hover{color:var(--text);background:#e9dfd1}#replay{font-size:12px;background:transparent;color:var(--accent);border-color:var(--line);padding:10px 12px}.references p{font-size:13px;margin:15px 0}.references a{white-space:nowrap}
@media(max-width:850px){.single-simulation{grid-template-columns:1fr}.listening-side{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.modeltabs button{flex:1;font-size:13px;padding:12px 8px}.speaker-target{width:34px;height:34px}}

/* Live workspace: sound direction and neural activity share the same viewport. */
header{padding-top:17px;padding-bottom:14px;gap:20px}header h1{font-size:32px;margin:3px 0 5px;letter-spacing:-.8px}header .eyebrow{margin:0}header .intro{margin:0;font-size:12px}header .link{margin-top:0}
main{padding-top:10px}.modeltabs{margin-bottom:12px}.modeltabs button{padding:10px 20px;font-size:14px}.controls{gap:12px;padding-bottom:0}.controls label{gap:3px}.controls select{min-height:35px;padding:7px 9px;font-size:13px}.controls button{padding:9px 15px}.controls #status{margin-bottom:7px}
.live-studio{margin:14px 0 12px;padding:16px 20px 0;overflow:visible}.stage-grid{display:grid;grid-template-columns:minmax(290px,.85fr) minmax(0,1.45fr);gap:24px}.stage-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:48px}.stage-heading .eyebrow{margin:0;font-size:9px;letter-spacing:1.5px}.stage-heading h2{font:400 23px/1.2 Georgia,serif;letter-spacing:-.4px}.source-badge{display:flex;align-items:center;gap:9px}.source-badge span{font-size:11px;color:var(--muted)}.source-badge strong{font:28px Georgia,serif;color:var(--warm)}
.live-studio .arena-figure{width:min(100%,350px);margin:0 auto}.arena-side{min-width:0}.live-studio .answer{text-align:center;font-size:15px;padding:4px 0 0;border:0}.live-studio #angles{text-align:center;margin:2px 0;font-size:11px}.live-studio .arena-key{font-size:10px;gap:10px;margin:5px 0 10px}.network-side{min-width:0;border-left:1px solid var(--line);padding-left:24px}.network-side #activeCount{font-size:11px;white-space:nowrap;color:var(--accent)}.network-canvas{display:flex;align-items:center;min-height:245px;height:286px}.network-canvas #network{display:block;width:100%;height:auto}.networktools{justify-content:space-between;gap:10px}.networktools label{gap:6px;font-size:11px}.networktools #frame{width:100px}.networktools output{min-width:46px}.networktools select{min-height:30px;padding:5px;font-size:11px}.activity-key{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:10px;margin:10px 0}.inactive-dot{width:7px;height:7px;border-radius:50%;background:#c8bdae}.activity-ramp{width:60px;height:6px;background:linear-gradient(to right,#b99660,#a95e39,#7e373d,#45223a)}.cell-hint{margin-left:auto}
.studio-transport{border-top:1px solid var(--line);padding:10px 0;display:flex;align-items:center;gap:14px;flex-wrap:wrap}.transport-buttons{display:flex;gap:7px}.studio-transport button{font-size:11px;padding:8px 10px}.studio-transport #replay{font-size:11px;padding:8px 10px}.studio-transport .volume-label{margin:0;font-size:11px;gap:6px}.studio-transport .volume-label input{width:75px}.studio-transport #audioStatus{margin:0;font-size:11px;flex:1;min-width:120px}.studio-transport #stopSound{background:transparent;color:var(--muted);border-color:var(--line)}.studio-caption{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);font-size:10px;color:var(--muted);padding:5px 0}.studio-caption p{margin:0}
.below-studio{display:grid;grid-template-columns:1fr 1fr;gap:14px}.below-studio .panel{margin:0;padding:12px 16px}.below-studio summary{cursor:pointer;font-size:12px;color:var(--accent);font-weight:600}.cell-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.cell-detail-grid #trace{max-width:300px}.below-studio .subnote{margin:12px 0}.sound-details .audio-buttons{margin-top:14px}
@media(min-width:900px) and (max-height:780px){header{padding-top:10px;padding-bottom:10px}header h1{font-size:28px}.live-studio .arena-figure{width:290px}.network-canvas{height:237px;min-height:0}.live-studio{padding-top:10px}.stage-heading h2{font-size:21px}.stage-heading{min-height:42px}.modeltabs button{padding-top:8px;padding-bottom:8px}.activity-key{margin:7px 0}.studio-transport{padding:8px 0}}
@media(max-width:1000px){header{display:flex}.stage-grid{grid-template-columns:minmax(260px,.9fr) minmax(0,1.1fr);gap:16px}.network-side{padding-left:16px}.networktools{align-items:start}.networktools #frame{width:75px}.cell-hint{display:none}.studio-transport{gap:8px}.stage-heading h2{font-size:20px}}
@media(max-width:700px){header,main,footer{padding-left:12px;padding-right:12px}header h1{font-size:24px}header .intro{display:none}header .link{font-size:11px}.modeltabs button{padding:9px 5px;font-size:11px}.controls{gap:8px}.controls label{font-size:10px}.controls select{font-size:11px}.live-studio{padding:10px 10px 0}.stage-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px}.network-side{padding-left:8px}.stage-heading{align-items:start;min-height:62px;flex-wrap:wrap;gap:2px}.stage-heading h2{font-size:16px}.stage-heading .eyebrow{font-size:7px;letter-spacing:.6px}.source-badge strong{font-size:18px}.source-badge span{display:none}.network-side #activeCount{font-size:9px}.live-studio .arena-figure{width:100%}.network-canvas{height:auto;min-height:150px}.live-studio .arena-key{font-size:8px;gap:4px}.live-studio .arena-key span:last-child{display:none}.live-studio .answer{font-size:11px}.live-studio #angles{font-size:9px}.networktools label{font-size:9px}.networktools #frame{width:65px}.networktools select{max-width:130px;font-size:9px}.activity-key{font-size:8px;gap:3px;flex-wrap:wrap}.activity-ramp{width:25px}.studio-caption{font-size:9px}.below-studio{grid-template-columns:1fr}.speaker-target{width:24px;height:24px}.studio-transport #audioStatus{min-width:140px}}

.below-studio{grid-template-columns:1fr}

.project-intro-wrap{max-width:1460px;margin:auto;padding:0 34px}.project-intro{border-bottom:1px solid var(--line)}.project-intro>summary{cursor:pointer;padding:9px 0;font-size:12px;font-weight:600;color:var(--accent)}.project-intro>summary span{font-weight:400;color:var(--muted);margin-left:12px}.project-intro>summary:focus-visible{outline:2px solid var(--warm);outline-offset:2px}.project-intro-content{max-width:1000px;padding:2px 0 15px;font-size:14px;line-height:1.8}.project-intro-content p{margin:15px 0}.project-intro-content .intro-source-link{font-size:12px;margin-bottom:0}
@media(max-width:1000px){.project-intro-wrap{padding:0 18px}}@media(max-width:700px){.project-intro-wrap{padding:0 12px}.project-intro>summary span{display:none}.project-intro-content{font-size:13px}}

/* The expandable introduction is the page heading. */
header{align-items:flex-start}
.header-intro{flex:1;min-width:0}
header>.link{flex-shrink:0;margin-top:5px}
header .project-intro{border:0;margin:4px 0}
header .project-intro>summary{padding:2px 0;color:var(--text)}
header .project-intro>summary h1{display:inline;margin:0;vertical-align:baseline}
header .project-intro>summary span{display:block;margin:5px 0 7px;font-size:12px}
header .project-intro-content{padding-bottom:8px}
@media(max-width:700px){header{gap:10px}header .project-intro>summary h1{font-size:22px}header .project-intro>summary span{font-size:11px}}

/* Phone layout: full-width listening scene and a taller neural map. */
@media(max-width:700px){
 .stage-grid{grid-template-columns:minmax(0,1fr);gap:16px}
 .network-side{border-left:0;border-top:1px solid var(--line);padding:16px 0 0}
 .stage-heading{min-height:44px;align-items:center;gap:8px}
 .stage-heading h2{font-size:23px}
 .stage-heading .eyebrow{font-size:9px;letter-spacing:1px}
 .source-badge strong{font-size:26px}
 .source-badge span{display:inline;font-size:11px}
 .live-studio .arena-figure{width:min(100%,420px)}
 .speaker-target{width:44px;height:44px}
 .live-studio .answer{font-size:15px}
 .live-studio #angles{font-size:12px}
 .live-studio .arena-key{font-size:11px;gap:8px}
 .live-studio .arena-key span:last-child{display:inline}
 .network-canvas{height:auto;min-height:0;margin:12px 0}
 .network-side #activeCount{font-size:12px}
 .networktools{gap:12px;align-items:center}
 .networktools label{font-size:12px;flex-wrap:wrap}
 .networktools #frame{width:120px;min-height:32px}
 .networktools select{max-width:none;font-size:16px;min-height:44px}
 .activity-key{font-size:11px;gap:6px;line-height:1.8}
 .activity-ramp{width:50px}.cell-hint{display:inline;width:100%;margin:0}
 .modeltabs{display:grid;grid-template-columns:1fr 1fr}
 .modeltabs button{font-size:13px;min-height:44px;padding:10px 8px}
 .controls label{font-size:12px;flex:1 1 140px}
 .controls select{font-size:16px;min-height:44px;width:100%}
 .controls #run{min-height:44px;flex:1 1 100%}
 .transport-buttons{flex-wrap:wrap;width:100%}
 .studio-transport button,.studio-transport #replay{min-height:44px;font-size:12px}
 .studio-transport .volume-label{font-size:12px}
 .studio-transport .volume-label input{width:110px;min-height:32px}
 .studio-transport #audioStatus{font-size:12px}
 .studio-caption{font-size:11px;flex-wrap:wrap;gap:5px}
 .cell-detail-grid{grid-template-columns:1fr}
}

.readout-help{font-size:12px;color:var(--muted);margin:8px 0 12px;max-width:900px}.controls select:disabled{opacity:.65}#directionAudit{margin:20px 0}#directionAudit summary{cursor:pointer;color:var(--accent);font-weight:600}#readoutResults,#directionResults{overflow-x:auto}