.audio-test-tool [hidden]{display:none!important}
.audio-test-tool .lab-wrap{max-width:1240px;margin:auto;padding:36px 24px 64px}
.audio-test-tool .lab-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:24px}
.audio-test-tool .lab-head h1{font-size:clamp(28px,4vw,42px);letter-spacing:-.045em;margin:7px 0}
.audio-test-tool .lab-head p,.audio-test-tool .lab-plot-head p{color:var(--aud-muted);margin:5px 0}
.audio-test-tool .lab-eyebrow{font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--aud-accent)}
.audio-test-tool .audStatus{position:sticky;top:8px;z-index:10;margin:0 0 8px;background:var(--aud-bg);border-radius:12px;box-shadow:0 5px 22px #142d4610}
.audio-test-tool .lab-message{font-size:13px;min-height:20px;color:var(--aud-muted);margin:10px 2px 20px}
.audio-test-tool .lab-workspaces{display:flex;gap:6px;padding:5px;background:var(--aud-raised);border:1px solid var(--aud-line);border-radius:14px;margin:0 0 24px;max-width:520px}
.audio-test-tool .lab-workspaces button{flex:1;border:0;background:transparent;border-radius:9px;padding:13px;color:var(--aud-muted);font:700 14px/1.2 inherit;cursor:pointer}
.audio-test-tool .lab-workspaces button[aria-pressed=true]{background:var(--aud-bg);color:var(--aud-accent);box-shadow:0 2px 7px #17213912}
.audio-test-tool .lab-tasks{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 16px}
.audio-test-tool .lab-tasks button{border:1px solid var(--aud-line);border-radius:24px;background:var(--aud-bg);color:var(--aud-text);font:inherit;font-size:13px;font-weight:650;padding:9px 17px;cursor:pointer}
.audio-test-tool .lab-tasks button[aria-pressed=true]{background:var(--aud-accent);color:var(--aud-accent-ink);border-color:var(--aud-accent)}
.audio-test-tool .lab-generate-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:24px;align-items:start}
.audio-test-tool .audCard{box-shadow:none;margin-bottom:14px;border-radius:14px}
.audio-test-tool .audCardHd{background:var(--aud-bg);padding:18px 20px}
.audio-test-tool .audCardBd{padding:20px}
.audio-test-tool .audCardTitle{font-size:16px}
.audio-test-tool .audFreqInput{height:66px;font-size:32px}
.audio-test-tool .audQuick{gap:6px}
.audio-test-tool .audBtn{min-height:36px;box-shadow:none}
.audio-test-tool .audBtn.selected{background:var(--aud-soft);border-color:var(--aud-accent);color:var(--aud-accent)}
.audio-test-tool .lab-disclosure{border:1px solid var(--aud-line);border-radius:12px;background:var(--aud-bg);margin:12px 0;padding:0 16px;overflow:hidden}
.audio-test-tool summary{cursor:pointer;font-size:14px;font-weight:700;padding:15px 0}
.audio-test-tool .lab-disclosure p,.audio-test-tool .lab-input details p{font-size:13px;color:var(--aud-muted);line-height:1.6}
.audio-test-tool .lab-disclosure .audCard{border:0;border-top:1px solid var(--aud-line);border-radius:0;margin:0}
.audio-test-tool .lab-disclosure .audCardHd,.audio-test-tool .lab-disclosure .audCardBd{padding:16px 0}
.audio-test-tool .lab-disclosure .audCardSub{font-size:12px}
.audio-test-tool #bState{float:right;color:var(--aud-muted);font-size:11px;margin:3px}
.audio-test-tool .lab-link,.audio-test-tool .lab-actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:12px 0}
.audio-test-tool .lab-output .audScope{height:160px}
.audio-test-tool .lab-output .audScopeTools{display:block}
.audio-test-tool .lab-output .audToggle{margin-top:14px}
.audio-test-tool .lab-running{padding:4px 8px 12px;font-size:13px}
.audio-test-tool .lab-running h3{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--aud-muted)}
.audio-test-tool .lab-running label{display:flex;gap:8px;align-items:center;flex-wrap:wrap;color:var(--aud-muted)}
.audio-test-tool #autoStopSeconds{width:75px}
.audio-test-tool .lab-input{border:1px solid var(--aud-line);background:var(--aud-bg);border-radius:14px;padding:20px;margin-bottom:24px}
.audio-test-tool .lab-input-top,.audio-test-tool .lab-plot-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.audio-test-tool .lab-input-top>div:first-child,.audio-test-tool .lab-plot-head>div:first-child{flex:1;min-width:210px}
.audio-test-tool h2{font-size:20px;letter-spacing:-.02em;margin:0 0 6px}
.audio-test-tool .lab-input p{font-size:12px;margin:4px 0;color:var(--aud-muted)}
.audio-test-tool .lab-fields{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:14px 0}
.audio-test-tool .lab-fields label{display:grid;gap:7px;font-size:12px;color:var(--aud-muted);align-content:start}
.audio-test-tool .lab-input-meters{display:grid;grid-template-columns:auto 1fr auto 1fr auto;gap:10px;align-items:center;font-size:11px;margin:18px 0}
.audio-test-tool meter{width:100%;height:12px;accent-color:var(--aud-good)}
.audio-test-tool #inputClip{color:var(--aud-bad)}
.audio-test-tool .lab-chart{background:#10222e;color:#e0eaf0;border-radius:14px;padding:14px 12px;margin:14px 0;overflow:hidden}
.audio-test-tool .lab-chart canvas{display:block;width:100%;height:auto;aspect-ratio:1200/440}
.audio-test-tool #transferCanvas{aspect-ratio:1200/620}
.audio-test-tool .lab-chart p{font:12px/1.5 ui-monospace,monospace;margin:10px 8px 0;min-height:20px}
.audio-test-tool .lab-note,.audio-test-tool #recordStatus{font-size:12px;color:var(--aud-muted);line-height:1.6}
.audio-test-tool .lab-dialog{max-width:640px;width:calc(100% - 32px);max-height:85dvh;overflow:auto;border:1px solid var(--aud-line);border-radius:18px;padding:24px;background:var(--aud-bg);color:var(--aud-text)}
.audio-test-tool .lab-dialog::backdrop{background:#0b1d32a0}
.audio-test-tool .lab-dialog h2{margin:16px 0}
.audio-test-tool .lab-dialog p{font-size:13px;line-height:1.6;color:var(--aud-muted)}
.audio-test-tool .lab-dialog input[type=file]{max-width:200px;font-size:11px}
.audio-test-tool button:focus-visible,.audio-test-tool input:focus-visible,.audio-test-tool select:focus-visible,.audio-test-tool summary:focus-visible{outline:3px solid var(--aud-accent);outline-offset:3px}
@media(max-width:850px){.audio-test-tool .lab-generate-layout{grid-template-columns:1fr}.audio-test-tool .lab-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.audio-test-tool .lab-wrap{padding:24px 14px 50px}.audio-test-tool .lab-input-meters{grid-template-columns:auto 1fr}.audio-test-tool .lab-head{align-items:flex-start}.audio-test-tool .lab-head>button{font-size:11px}.audio-test-tool .audMaster{gap:6px}.audio-test-tool .audStatus{top:0;padding:10px}.audio-test-tool .audMaster .audSlider{width:100px!important}.audio-test-tool .lab-chart canvas{min-height:220px}.audio-test-tool #transferCanvas{min-height:340px}}
@media(prefers-reduced-motion:reduce){.audio-test-tool *{scroll-behavior:auto;transition:none!important}}
.audio-test-tool button,.audio-test-tool input,.audio-test-tool select{font-family:inherit}
.audio-test-tool .lab-workspaces button{font-family:inherit;font-size:14px;font-weight:700;line-height:1.2}
.audio-test-tool .lab-quick-frequencies{margin-top:10px}
.audio-test-tool .lab-quick-frequencies summary{font-size:12px;padding:8px 0;color:var(--aud-muted)}
@media(min-width:360px) and (max-width:600px){.audio-test-tool [data-osc] .audRow3{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}.audio-test-tool [data-osc] .audSelect{font-size:12px;padding:9px 5px}}
.audio-test-tool .lab-input-badge{font-size:11px;border-radius:14px;padding:4px 8px;background:var(--aud-raised);color:var(--aud-muted);white-space:nowrap}
.audio-test-tool .lab-input-badge.live{background:#e3f5ec;color:#166c45}
@media(max-width:600px){.audio-test-tool .audStatus{display:grid;grid-template-columns:1fr;gap:8px}.audio-test-tool .audMaster{display:grid;grid-template-columns:auto minmax(60px,1fr) auto auto;gap:6px;width:100%}.audio-test-tool .audMaster .audSlider{width:100%!important;min-width:0}.audio-test-tool .audMaster label{font-size:10px}.audio-test-tool #masterDbOut{font-size:11px}.audio-test-tool #stopAll{font-size:11px;padding:8px}.audio-test-tool .audStatusText{font-size:12px}.audio-test-tool .audMeta{font-size:10px}.audio-test-tool .lab-input-badge{font-size:10px}.audio-test-tool .lab-head>button{white-space:nowrap;padding:9px}.audio-test-tool .lab-head{gap:10px}}
.audio-test-tool [data-task-panel=noise] .audRow:first-child{display:flex;flex-wrap:wrap;gap:8px}
.audio-test-tool .noiseBtn{flex:1;min-width:70px}
.audio-test-tool [data-task-panel=noise] .audCardBd>.audBtn{margin-bottom:16px}
.audio-test-tool [aria-label="Frequency library"]{margin-top:14px}
.audio-test-tool .lab-workspaces{max-width:760px;flex-wrap:wrap}
.audio-test-tool .lab-workspaces button{min-width:95px}
.audio-test-tool .lab-stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:20px 0}
.audio-test-tool .lab-stat-grid>div{padding:18px;border:1px solid var(--aud-line);border-radius:12px;background:var(--aud-bg);color:var(--aud-muted);font-size:12px}
.audio-test-tool .lab-stat-grid strong{display:block;color:var(--aud-text);font-size:24px;margin-top:10px;font-variant-numeric:tabular-nums}
.audio-test-tool .lab-crosshair{position:absolute;display:none;width:1px;background:#dbeaf099;pointer-events:none;z-index:2}
.audio-test-tool .lab-cursor-readout{font-variant-numeric:tabular-nums;min-height:20px}
.audio-test-tool textarea.audInput{height:auto;min-height:110px;resize:vertical}
.audio-test-tool #splitView{margin:0 0 18px}
.audio-test-tool.lab-split .lab-stage{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(0,1.5fr);gap:20px;align-items:start}
.audio-test-tool.lab-split .lab-generate-layout{grid-template-columns:1fr}
.audio-test-tool.lab-split .lab-output{display:none}
.audio-test-tool.lab-split .lab-fields{grid-template-columns:repeat(2,minmax(0,1fr))}
.audio-test-tool.lab-split [data-osc] .audRow3{grid-template-columns:1fr}
.audio-test-tool .lab-clipping{color:var(--aud-bad);font-weight:bold}
.audio-test-tool #analyzerOptions details{padding:0}
.audio-test-tool #projectControls{border-bottom:1px solid var(--aud-line);padding-bottom:12px}
.audio-test-tool #stereoCanvas{width:300px;max-width:100%;background:#10222e;border-radius:8px;margin-top:15px}
.audio-test-tool #outputPeak,.audio-test-tool #extraSourceSummary{font-size:12px;color:var(--aud-muted)}
.audio-test-tool [data-panel=level]>.lab-fields{align-items:end}
@media(max-width:850px){.audio-test-tool.lab-split .lab-stage{grid-template-columns:1fr}.audio-test-tool .lab-workspaces button{min-width:75px;padding:12px 6px}.audio-test-tool .lab-stat-grid strong{font-size:20px}}
.audio-test-tool .lab-fields>*{min-width:0}
.audio-test-tool input[type=file]{width:100%;max-width:100%;min-width:0;font-size:12px}
.audio-test-tool .lab-actions>*{max-width:100%}
.audio-test-tool .lab-inline-label{display:flex;gap:7px;align-items:center;font-size:12px;color:var(--aud-muted)}
.audio-test-tool .lab-inline-label input{width:150px}
.audio-test-tool .lab-workspaces{max-width:440px}
.audio-test-tool .lab-workspaces [data-direction]{min-width:130px}
.audio-test-tool .lab-input-tasks{margin:0 0 14px}
.audio-test-tool .lab-signal-strip{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:12px 15px;margin-bottom:18px;border:1px solid var(--aud-line);border-radius:12px;background:var(--aud-raised);font-size:13px}
.audio-test-tool #signalSummary{flex:1;min-width:180px;color:var(--aud-muted)}
.audio-test-tool #returnToInput{margin:-8px 0 18px}
.audio-test-tool #liveViews{margin:6px 0 18px}
.audio-test-tool #sharedCorrection>details{margin-top:12px;border-top:1px solid var(--aud-line);padding-top:6px}
.audio-test-tool #inputPanel>.lab-fields{grid-template-columns:repeat(2,minmax(0,1fr))}
.audio-test-tool [data-panel=stereo] #stereoCanvas{width:min(100%,600px);height:auto}
@media(max-width:600px){.audio-test-tool .lab-workspaces{max-width:none}.audio-test-tool .lab-input-tasks button,.audio-test-tool #liveViews button{font-size:12px;padding:9px 12px}.audio-test-tool .lab-signal-strip{gap:7px}.audio-test-tool #signalSummary{flex-basis:100%}}
.audio-test-tool .audBtn:disabled{opacity:.45;cursor:default}
.audio-test-tool .lab-axis-help{font:12px/1.6 system-ui;color:#d0e3ed;margin:2px 8px 12px;max-width:850px}
.audio-test-tool .lab-chart #analysisCanvas{aspect-ratio:auto;height:auto;min-height:0}
.audio-test-tool .lab-output .lab-output-chart{display:block;width:100%;height:auto;aspect-ratio:auto;background:#10222e;border:0;border-radius:8px;margin:10px 0 14px}
.audio-test-tool .lab-output-legend{font-size:12px;line-height:1.5;color:var(--aud-muted);margin:0 0 10px}
.audio-test-tool .lab-output #outputCursor{font:12px/1.5 ui-monospace,monospace;color:var(--aud-muted)}
.audio-test-tool .lab-chart #transferCanvas,.audio-test-tool .lab-chart #acousticsCanvas{height:auto;min-height:0;aspect-ratio:auto}
.audio-test-tool #outputViews{gap:6px}
.audio-test-tool #outputViews .lab-inline-label{width:100%;justify-content:space-between}
.audio-test-tool #outputViews .audSelect{max-width:240px;font-size:12px}
.audio-test-tool .lab-heading-help{display:flex;align-items:center;gap:8px}
.audio-test-tool .lab-heading-help h1,.audio-test-tool .lab-heading-help h2{flex:0 1 auto}
.audio-test-tool .aud-help{flex:0 0 22px;width:22px;height:22px;min-height:22px;border:1px solid var(--aud-line2);border-radius:50%;background:var(--aud-bg);color:var(--aud-accent);font:700 13px/1 system-ui;display:inline-flex;align-items:center;justify-content:center;padding:0;cursor:pointer;vertical-align:middle}
.audio-test-tool summary .aud-help{margin-left:8px}
.audio-test-tool .lab-label-help{display:flex;align-items:center;gap:7px;min-width:0}
.audio-test-tool .lab-field-help{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 22px;gap:6px;min-width:0;align-items:start}
.audio-test-tool .lab-field-help>.aud-help{margin-top:0}
.audio-test-tool .lab-field-help>label{min-width:0}
.audio-test-tool .lab-help-dialog{width:min(640px,calc(100% - 28px));max-height:85dvh;overflow:auto;border:1px solid var(--aud-line);border-radius:16px;background:var(--aud-bg);color:var(--aud-text);padding:26px;font-family:inherit;box-shadow:0 20px 90px #10222e50}
.audio-test-tool .lab-help-dialog::backdrop{background:#10222e88}
.audio-test-tool .lab-help-dialog h2{font-size:22px;line-height:1.3;margin-bottom:16px}
.audio-test-tool .lab-help-dialog p,.audio-test-tool .lab-help-dialog li{font-size:14px;line-height:1.65}
.audio-test-tool .lab-help-dialog li{padding-left:3px;margin-bottom:12px}
.audio-test-tool .lab-help-dialog ol{padding-left:22px;margin:18px 0}
.audio-test-tool .lab-help-lead{color:var(--aud-text);font-weight:550}
.audio-test-tool #noiseGuide{font-size:12px;margin-top:6px}
.audio-test-tool .lab-graph-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:12px 0 6px;color:#536c7c;font-size:13px;font-weight:600}
.audio-test-tool .lab-graph-toolbar .audBtn{font-size:13px;padding:6px 10px;white-space:nowrap}
/* Plot surfaces and chrome share the host tool's light surfaces and blue accent. */
.audio-test-tool{--aud-plot-bg:#e8edf4;--aud-plot-muted:#52647a;--aud-plot-grid:#b8c5d5;--aud-plot-zero:#94a6bd;--aud-plot-secondary:#a85d08;--aud-plot-tertiary:#7654ad;--aud-plot-comparison:#19755c}
.audio-test-tool .lab-chart{background:var(--aud-bg);color:var(--aud-text);border:1px solid var(--aud-line);box-shadow:0 2px 8px #17213906}
.audio-test-tool .lab-chart canvas,.audio-test-tool #stereoCanvas,.audio-test-tool .lab-output .lab-output-chart{background:var(--aud-plot-bg);border:1px solid var(--aud-line)}
.audio-test-tool .lab-output-legend,.audio-test-tool .lab-axis-help,.audio-test-tool .lab-cursor-readout{color:var(--aud-plot-muted)}
.audio-test-tool .lab-action-help{display:inline-flex;gap:6px;align-items:center;max-width:100%}
.audio-test-tool .lab-action-help>.audBtn{min-width:0}