.airflow-panel{margin:12px 0 16px;padding:14px 16px;background:#f8f6f0;border:1px solid #e9e3d9;border-radius:13px}.airflow-heading{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap}.airflow-heading b{font-size:12px;color:#53665d}.airflow-heading span{font-size:10px;color:#8d9187}.airflow-options{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.airflow-options label{display:flex;align-items:center;gap:6px;border:1px solid #e4ded3;border-radius:20px;background:#fffdf8;padding:8px 10px;font-size:11px;cursor:pointer;color:#677268}.airflow-options label:has(input:checked){border-color:#79b9b4;background:#eaf5f1;color:#267c77}.airflow-options input{accent-color:#318b85;width:14px;height:14px;margin:0}.airflow-explain{font-size:11px;line-height:1.7;color:#586d65;margin:8px 0}.airflow-limit{font-size:10px;line-height:1.7;color:#8a8073;margin:5px 0 0}.airflow-overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;display:none}.portrait-ready .airflow-overlay{display:block}.airflow-overlay[hidden]{display:none!important}.portrait-labels{z-index:2}.image-view-label{z-index:3}
.airflow-legend,.airflow-tools{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:11px;color:#647970;margin:10px 0}.airflow-legend[hidden],.airflow-tools[hidden],.airflow-legend span[hidden]{display:none}.airflow-legend i{display:inline-block;width:10px;height:10px;border-radius:50%;margin:0 3px}.airflow-legend .warm{background:#ef9f7c}.airflow-legend .cool{background:#79c6de}.legend-flow{color:#228f9b;font-weight:600}.airflow-tools button,.airflow-tools select{font:inherit;color:#50685d;background:#fffdf8;border:1px solid #dcded3;border-radius:8px;padding:7px 9px;cursor:pointer}.airflow-tools button[aria-pressed=true]{background:#e8eee6;border-color:#8aa48d}.airflow-tools span{font-size:10px;color:#8e8a7c}.flow-arrow{filter:drop-shadow(0 0 2px #237880)}
.airflow-legend .air-cyan{background:#29c8ed}.airflow-legend .res-purple{background:#b694ef}
.tube-controls{border-top:1px solid #dfd9cd;margin-top:12px;padding-top:12px;font-size:11px;color:#655d54}.tube-controls[hidden]{display:none}.tube-controls select{padding:7px;border:1px solid #dbd3c7;border-radius:7px;background:#fffdf9;color:#625e54}.tube-controls p{line-height:1.7;margin:9px 0}.tube-controls svg{width:100%;max-height:160px;display:block;background:#fffdf9;border-radius:8px}.tube-controls svg text{font:11px sans-serif;fill:#827a6a}.tube-controls summary{cursor:pointer}.tube-controls a{color:#537d78}.tube-result{font-weight:600;color:#957035}
.part-study{margin:18px 0;padding:16px;border:1px solid #e6ded2;background:#fcfaf5;border-radius:14px}.study-title{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.study-title b{font-size:13px;color:#51665c}.study-title span{font-size:10px;color:#948777}.part-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:13px 0}.part-tabs button,.study-compare button{padding:9px 11px;background:#fffdf8;border:1px solid #ded8cb;border-radius:9px;color:#687361;font:inherit;font-size:11px;cursor:pointer}.part-tabs button[aria-pressed=true]{background:#e8f1e8;border-color:#87a88f;color:#366548}.part-location,.part-reason,.study-state,.study-scope,.study-graph p{font-size:11px;line-height:1.75;color:#7d7567;margin:9px 0}.part-location{color:#526c5a;font-weight:600}.study-slots{padding:15px 0 7px}.study-slots .art-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.study-slots .art-control[hidden]{display:none}.study-slots #artReset{margin-top:15px}.study-compare{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.study-deltas{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.study-deltas div{display:flex;flex-direction:column;gap:5px;padding:10px;background:#fffdf8;border:1px solid #ebe4d8;border-radius:8px;font-size:11px;color:#827663}.study-deltas b{color:#b67d60}.study-deltas strong{color:#487a6c;font-size:12px}.study-graph{margin-top:14px;font-size:11px;color:#6e7566}.study-graph summary{cursor:pointer}.study-graph svg{width:100%;max-height:150px;margin-top:12px}.study-graph path{fill:none;stroke-width:2}.study-curve-before{stroke:#a3a79c;stroke-dasharray:5 4}.study-curve-after{stroke:#c48466}.study-graph text{font:10px sans-serif;fill:#938b7c}.study-scope{font-size:10px;border-top:1px solid #e5dfd3;padding-top:9px}.part-highlight{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;display:none}.portrait-ready .part-highlight{display:block}.part-active{fill:#75b5a0;fill-opacity:.19;stroke:#4b9b82;stroke-opacity:.65;stroke-width:2}.part-before{fill:none;stroke:#8d7f66;stroke-width:2;stroke-dasharray:7 6;stroke-opacity:.65}@media(max-width:480px){.study-slots .art-grid{grid-template-columns:1fr}.study-deltas{gap:4px}.study-deltas div{padding:7px;font-size:10px}}
.flow-advanced{margin:12px 0;color:#7c8172;font-size:11px}.flow-advanced>summary{cursor:pointer;padding:9px 0}
.part-caption{display:none;position:absolute;top:6px;left:7px;padding:5px 7px;background:#fffdf1dd;color:#527b67;font-size:9px;z-index:3;border-radius:6px}.portrait-ready .part-caption{display:block}

.acoustic-choice{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12px;color:#49665a;margin:16px 0 8px}.acoustic-choice select{padding:10px;background:#fffdf8;border:1px solid #cdd7ca;border-radius:8px;color:#355d50;max-width:100%}.acoustic-note{font-size:11px;color:#756e61;line-height:1.8}

.nasal-choice{display:flex;gap:8px;align-items:center;font-size:12px;color:#45695b;margin:14px 0}.nasal-choice input{accent-color:#4b7865}.nasal-note{font-size:11px;line-height:1.8;color:#7a6b59;background:#f3f0e7;padding:10px;border-radius:8px}
/* PC workstation: artwork stays beside the four live controls. */
@media(min-width:1000px){
 .workspace{grid-template-columns:230px minmax(0,1fr)}
 .articulation-station{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;align-items:start}
 .articulation-station .anatomy-real{position:sticky;top:100px;grid-template-columns:minmax(0,1fr) 86px;gap:8px;padding-top:0}
 .articulation-station .anatomy-art{max-height:calc(100dvh - 190px);max-width:calc(100dvh - 190px);margin:auto}
 .articulation-station .fold-view{width:86px}
 .articulation-station .anatomy-detail{gap:8px}
 .articulation-station .vowel-readout>strong{font-size:30px}
 .articulation-station .part-study{margin:0;padding:12px}
 .articulation-station .study-title span{display:none}
 .articulation-station .part-tabs{gap:4px;margin:10px 0}
 .articulation-station .part-tabs button{padding:7px 9px}
 .articulation-station .study-slots{padding:5px 0}
 .articulation-station .art-grid{gap:12px;grid-template-columns:1fr}
 .articulation-station .art-control input{height:26px}
 .articulation-station .part-location,.articulation-station .part-reason{font-size:10px;line-height:1.5}
 .articulation-station .study-deltas div{padding:6px;font-size:10px}
}
.study-extras{margin-top:12px;border-top:1px solid #e5dfd3;padding-top:10px;font-size:11px;color:#687361}
.study-extras>summary{cursor:pointer;padding:6px 0}
@media(min-width:761px) and (max-width:999px){.articulation-station .anatomy-real{position:sticky;top:95px;z-index:4;background:#fffefa}.articulation-station .anatomy-art{max-width:320px;margin:auto}.articulation-station .part-study{margin-top:8px}}
@media(min-width:1000px){
 .articulation-station .art-control input{height:4px;margin:8px 0}
 .articulation-station .art-control label{margin-bottom:2px}
 .articulation-station .art-control>div{margin-top:2px}
 .articulation-station .study-slots #artReset{margin-top:8px}
 .articulation-station .part-tabs{gap:3px}
 .articulation-station .part-tabs button{padding:6px 7px;font-size:10px}
}
.anatomy-names{margin:0 0 10px;padding:10px 12px;border:1px solid #e5dfd3;border-radius:12px;background:#fcfaf5;color:#52685d;font-size:12px}.names-toggle{display:flex;align-items:center;gap:8px;cursor:pointer;font-weight:600}.names-toggle input{accent-color:#457968}.names-content[hidden]{display:none}.names-groups,.names-options{display:flex;gap:5px;flex-wrap:wrap;margin-top:9px}.anatomy-names button{border:1px solid #dedfd3;border-radius:8px;background:#fffdf8;color:#69776b;padding:7px 9px;font:inherit;cursor:pointer}.anatomy-names button[aria-pressed=true]{background:#e7f1eb;border-color:#81a691;color:#285e49}.names-description{font-size:12px;line-height:1.7;margin:10px 0 6px;min-height:40px}.anatomy-names small{font-size:10px;line-height:1.5;color:#8a8175}.names-overlay{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:4}.names-overlay path{fill:none;stroke:#457968;stroke-width:2}.names-overlay circle{fill:#fff8e8;stroke:#457968;stroke-width:3}.names-overlay rect{fill:#fffdf4;stroke:#84a995;stroke-width:1.5}.names-overlay text{font:22px sans-serif;fill:#315e4e}.names-visible .portrait-labels{opacity:.3}.names-visible .part-caption{display:none}.anatomy-names button:focus-visible{outline:2px solid #457968;outline-offset:2px}
.names-toggle-float{position:absolute;top:10px;right:10px;z-index:8;display:flex;align-items:center;gap:6px;padding:7px 9px;background:#fffdf5ee;border:1px solid #dedfd3;border-radius:9px;font-size:11px;color:#426452;cursor:pointer}.names-toggle-float input{margin:0;accent-color:#457968}.all-anatomy-names{position:absolute;inset:0;z-index:6;pointer-events:none}.all-anatomy-names[hidden]{display:none}.names-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.names-lines path{stroke:#648c78;stroke-width:1.4;opacity:.65;fill:none}.names-lines circle{fill:#fff9eb;stroke:#648c78;stroke-width:1.5}.names-lines .name-line-active{stroke:#256c4d;stroke-width:3;opacity:1}.anatomy-name{position:absolute;width:25%;pointer-events:auto;line-height:1.3}.name-left{left:2%}.name-right{right:2%}.anatomy-name button{display:block;width:100%;min-height:24px;border:1px solid #a6b9a8;border-radius:7px;background:#fffcf2ed;padding:4px 2px;color:#365d4a;font:inherit;font-size:clamp(9px,1vw,12px);cursor:help;box-shadow:0 1px 3px #352a1710}.anatomy-name button:hover,.anatomy-name button:focus-visible{background:#e7f2e9;outline:2px solid #6a9c82;outline-offset:1px}.anatomy-name-help{display:none;position:absolute;top:0;width:210px;max-width:54vw;padding:11px 12px;background:#fffef8;border:1px solid #b5c3b5;border-radius:9px;box-shadow:0 5px 18px #20332925;font-size:12px;line-height:1.7;color:#42564a;pointer-events:none}.name-left .anatomy-name-help{left:calc(100% + 8px)}.name-right .anatomy-name-help{right:calc(100% + 8px)}.anatomy-name:hover,.anatomy-name:focus-within{z-index:10}.anatomy-name:hover .anatomy-name-help,.anatomy-name:focus-within .anatomy-name-help{display:block}.names-visible .portrait-labels{opacity:0}.names-visible .part-caption{display:none}
.anatomy-name:hover .anatomy-name-help,.anatomy-name:focus-within .anatomy-name-help{display:none}.anatomy-name.name-open .anatomy-name-help{display:block}.anatomy-name.name-open{z-index:11}

/* Compact, always visible viewing controls; reserve the viewport for anatomy. */
.airflow-panel{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 12px;margin:8px 0 12px}
.airflow-heading b{font-size:16px}.airflow-heading{margin:0}
.airflow-options{display:flex;gap:12px;margin:0}.airflow-options label{white-space:nowrap}
.airflow-panel .airflow-explain{margin:0;font-size:12px}
.airflow-panel .airflow-tools,.airflow-panel .airflow-legend,.airflow-panel .airflow-limit,.airflow-panel .tube-controls,.airflow-options label[hidden]{display:none!important}
@media(min-width:1000px){.articulation-station .anatomy-art{max-height:calc(100dvh - 235px);max-width:calc(100dvh - 235px)}.articulation-station .part-study{max-height:calc(100dvh - 210px);overflow-y:auto;scrollbar-width:thin}}
@media(min-width:1000px){
 .topbar{height:50px} main{padding-top:12px}.intro{margin-bottom:12px}.intro .eyebrow,.intro-index{display:none}.intro h1{font-size:28px;margin-bottom:3px}.intro-copy{margin:0;font-size:12px}
 .transport{padding:10px 16px}.transport .play-button{height:38px}.tone-compare{margin:7px 0;font-size:12px}.tone-compare select{padding:4px 10px}.message:empty{display:none}.workspace{margin-top:12px}
 .anatomy.panel{padding:14px 16px}.anatomy .section-top{margin-bottom:6px}
 .articulation-station .anatomy-art{max-height:calc(100dvh - 315px);max-width:calc(100dvh - 315px)}
 .articulation-station .part-study{max-height:calc(100dvh - 310px)}
}
@media(min-width:1000px){.articulation-station .anatomy-art{max-height:calc(100dvh - 380px);max-width:calc(100dvh - 380px)}.articulation-station .part-study{max-height:calc(100dvh - 365px)}}