@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');

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#9ca9ff;outline-offset:5px}button{border:0}svg.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex:none}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--font-display)}[hidden]{display:none!important}.icon-library{position:absolute;width:0;height:0;overflow:hidden}.site-shell{max-width:1280px;margin:0 auto;padding:0 48px}.site-header{height:101px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-family:var(--font-display);font-size:30px;font-weight:800;letter-spacing:-1.6px;display:flex;align-items:center}.brand-mark{width:37px;height:37px;margin-right:10px;color:var(--blue)}.brand-mark svg{width:100%;fill:none;stroke:currentColor;stroke-width:2}.brand-dot{color:var(--blue)}nav{display:flex;align-items:center;gap:31px;margin-left:37px;font-size:14px}nav button{padding:10px 0;background:none;display:flex;align-items:center;gap:8px;color:#747c90}nav button 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#17275a20;overscroll-behavior:contain}dialog::backdrop{background:#26314b44;backdrop-filter:blur(5px)}.dialog-content{padding:29px 34px 32px}.dialog-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.icon-button{display:grid;place-items:center;background:#f5f6fa;width:34px;height:34px;border-radius:50%;color:#929cb2;flex:none}.dialog-content h2{font-size:32px;line-height:1.3;letter-spacing:-1px;margin-bottom:20px}.dialog-content>p{font-size:14px;line-height:1.85;color:#7b859b}.dialog-content>h3{font-size:16px;margin:23px 0 8px;font-weight:600}.explanation-pair{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:24px 0}.explanation-pair>div{border-radius:10px;background:#f1f4ff;padding:17px;color:#576cdd}.explanation-pair>div+div{color:#9370c1;background:#f7f1fc}.explanation-pair h3{font-size:14px;margin:5px 0}.explanation-pair 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/* Keep operative labels comfortable to read; tiny sizes are reserved for axes and metadata. */
.intro p{font-size:16px}.panel-label{font-size:14px}.status-pill{font-size:12px}.control-description{font-size:14px}.setup-steps li{font-size:14px}.primary-button{font-size:14px}.secondary-button{font-size:14px}.privacy-note{font-size:11px;white-space:normal}.stage-caption p{font-size:14px}.visual-bottom{font-size:12px}.field-tag{font-size:10px}.readout-label{font-size:14px}.readout p{font-size:12px}.spectrum-subtitle{font-size:12px}.spectrum-legend{font-size:12px}.spectrum-axis{font-size:11px}.settings-panel summary{font-size:14px}.settings-summary{font-size:12px}.setting>label,.setting-label{font-size:14px}.setting select{font-size:14px;min-height:42px}.setting p{font-size:12px}.device-detail{font-size:12px}.bottom-note p,.bottom-note button{font-size:12px}.notice{font-size:14px}.demo-controls p{font-size:14px}.demo-slider label,.demo-slider>span{font-size:12px}.text-button{font-size:13px}.source-link{font-size:12px!important}.calibration-box p,.calibration-heading{font-size:14px}
@media(min-width:1500px){.site-shell{max-width:1390px;padding:0 64px}.intro{padding-top:46px;padding-bottom:35px}.visual-panel{min-height:493px}.visual-stage{min-height:355px}.control-panel{padding:27px}.control-panel h2{font-size:26px}.setup-steps{gap:16px;margin-bottom:26px}.control-description{margin-bottom:22px}.spectrum-plot{height:105px}}
@media(max-width:1050px){.site-shell{padding:0 28px}.workspace{grid-template-columns:minmax(0,1.55fr) minmax(300px,1fr);gap:16px}.control-panel{padding:21px}.visual-panel{min-height:480px}.intro h1{font-size:39px}.experiment-tag{font-size:10px}.privacy-header{font-size:11px}.intro p{font-size:14px}.spectrum-subtitle{display:none}.field-tag{display:none}.readouts{gap:16px}.readout{padding:17px}.unit{font-size:11px}.readout-value{font-size:27px}.direction-value{font-size:21px}.demo-controls{flex-wrap:wrap;gap:12px}.demo-controls>div:first-child{flex:1 1 100%}.demo-slider{flex:1}.settings-grid{gap:20px}.privacy-note{font-size:10px}.footer-badge{display:none}.control-panel h2{font-size:24px}.control-description{font-size:14px}}
@media(max-width:760px){.site-shell{padding:0 20px}.site-header{height:78px}.brand{font-size:26px}.brand-mark{width:32px;height:32px;margin-right:7px}nav{margin:0;gap:20px}nav .nav-active{display:none}nav button{font-size:13px}.privacy-header{display:none}.intro{padding:29px 0 23px}.intro h1{font-size:36px;margin-top:10px;letter-spacing:-1.6px}.intro p{font-size:14px;max-width:340px}.eyebrow{font-size:10px;letter-spacing:1.2px}.experiment-tag{display:none}.workspace{grid-template-columns:1fr;gap:16px}.visual-panel{min-height:350px}.panel-top{padding:17px 19px}.visual-stage{min-height:259px}.stage-caption{bottom:4px}.stage-caption h2{font-size:22px}.stage-caption p{font-size:12px}.visual-bottom{margin:15px 19px 0;padding:13px 0}.field-tag{display:flex;font-size:9px}.field-coordinate{display:none}.axis-left{left:19px}.axis-right{right:19px}.control-panel{padding:22px}.control-heading{margin-bottom:13px}.control-panel h2{font-size:24px}.control-panel h2 br{display:none}.control-description{max-width:100%;margin:8px 0 17px}.setup-steps{gap:11px;margin-bottom:19px}.desktop-break{display:none}.primary-button{min-height:49px}.secondary-button{min-height:40px}.privacy-note{font-size:11px}.readouts{gap:10px;margin-top:16px}.readout{padding:14px 12px}.readout-label{font-size:11px;min-height:27px;gap:4px;align-items:start;line-height:1.5}.readout-label .icon{display:none}.readout-value{font-size:25px;min-height:37px;gap:3px}.direction-value{font-size:17px;letter-spacing:-.4px}.direction-indicator{display:none}.readout p{font-size:10px;line-height:1.6;min-height:32px;margin-top:6px}.unit{font-size:9px;letter-spacing:0}.signal-bars{display:none}.spectrum-panel{padding:17px 16px 14px;margin-top:16px}.spectrum-heading{align-items:flex-start}.spectrum-heading>div{gap:8px}.spectrum-legend{gap:4px!important;flex-direction:column;align-items:flex-end!important;font-size:10px}.spectrum-legend>span:last-child{border:0;padding:0}.spectrum-plot{height:95px}.spectrum-awaiting{font-size:10px;padding:0 20px;line-height:1.7}.spectrum-axis{font-size:10px}.spectrum-axis>span>span{display:none}.settings-panel{margin-top:16px}.settings-panel summary{padding:16px}.settings-summary{font-size:10px}.settings-grid{grid-template-columns:1fr;padding:8px 18px 18px;gap:18px}.setting p{font-size:12px}.setting label,.setting select{font-size:14px}.settings-grid input{margin-top:7px}.device-detail{padding:14px 18px;font-size:12px}.bottom-note{margin:21px 0 27px;justify-content:flex-start}.bottom-note p{font-size:11px}.bottom-note button{font-size:11px;padding:0}.bottom-note>.icon{margin-top:3px}footer{padding:21px 0;gap:15px;font-size:9px}.footer-brand{font-size:16px}.demo-controls{padding:16px}.demo-controls p{font-size:12px}.demo-slider{flex:1 1 100%;min-width:0;gap:8px}.demo-slider label,.demo-slider>span{font-size:11px}.demo-controls .text-button{margin-left:auto}.dialog-content{padding:22px}.dialog-content h2{font-size:27px}.dialog-content>p{font-size:14px}.live-instructions{padding-bottom:22px}}
@media(max-width:370px){.site-shell{padding:0 13px}.intro h1{font-size:31px}.field-tag{display:none}.readout{padding:12px 9px}.direction-value{font-size:15px}.readout-value{font-size:22px}.settings-summary{font-size:0}.status-pill{font-size:10px}.panel-label{font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.primary-button:hover{transform:none}}

/* Readable instrument labels, including in daylight on a phone. */
.skip-link:not(:focus){clip-path:inset(50%);height:1px;width:1px;overflow:hidden;white-space:nowrap;padding:0;top:0}
.visual-panel .demo-controls{margin:0 18px 18px;padding:14px;gap:10px;display:grid;grid-template-columns:minmax(0,1fr) auto}
.visual-panel .demo-controls>div:first-child{grid-column:1 / -1}
.visual-panel .demo-slider{min-width:0}
.visual-panel .demo-controls p{font-size:12px}
.intro p,.control-description,.setup-steps li,.readout-label{color:#667086}
.stage-caption p,.visual-bottom,.secondary-button,.readout p,.setting p,.device-detail,.privacy-note,.bottom-note,.settings-summary,.spectrum-subtitle,.spectrum-legend,.spectrum-awaiting{color:#707c96}
.status-pill{color:#707c96}.readout .unit{color:#737e95}.source-link a{color:#5267b1}
@media(max-width:760px){
  .visual-panel .demo-controls{grid-template-columns:minmax(0,1fr)}
  .control-panel{display:flex;flex-direction:column}
  .control-heading,.control-panel h2,.control-description{display:none}
  .main-actions{order:-1;margin-bottom:16px}
  .setup-steps{margin-bottom:4px}
  .readouts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .readout{padding:17px}
  .readout:first-child{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;align-items:center;column-gap:10px}
  .readout:first-child .readout-label{grid-column:1;min-height:0}
  .readout:first-child .readout-value{grid-column:2;grid-row:1 / 3;justify-content:flex-end;margin:0;font-size:23px}
  .readout:first-child p{grid-column:1;min-height:0;margin-top:4px}
  .readout-label{font-size:13px}
  .readout p{font-size:12px}
  .readout-value{font-size:27px}
  .readout .unit{font-size:12px}
  .notice{order:-2}
  .stage-caption p{font-size:13px}
}
@media(max-width:370px){.visual-bottom .field-tag{display:none}}
.nav-play{display:flex;align-items:center;gap:7px;color:#4355ce;font-weight:600}.nav-play span{font-size:9px;letter-spacing:.7px;border:1px solid #dce1f7;padding:3px 5px;border-radius:4px}.motion-feedback{display:flex;align-items:center;justify-content:center;gap:12px;margin:14px 22px 0;font-size:12px;color:#8793b3}.feedback-side{transition:color .15s,font-weight .15s;white-space:nowrap}.motion-rail{position:relative;width:160px;height:5px;border-radius:6px;background:linear-gradient(90deg,#d7c9eb,#e5e9fa,#bcc8f9);flex-shrink:1;min-width:50px}.rail-center{position:absolute;left:50%;height:9px;top:-2px;width:1px;background:#9eacca}#motion-cursor{position:absolute;left:calc(50% - 5px);width:10px;height:10px;top:-2.5px;border-radius:50%;background:#7080e5;border:2px solid white;box-shadow:0 1px 6px #667cd55e}.motion-feedback[data-direction=toward] #feedback-toward{color:#3d55d8;font-weight:700}.motion-feedback[data-direction=away] #feedback-away{color:#8660b2;font-weight:700}.practice-hint{display:flex;justify-content:space-between;gap:12px;margin:15px 25px 0;font-size:12px;color:#6575a4}#clarity-label{color:#7d88a7}.game-invite{display:flex;gap:17px;align-items:center;background:linear-gradient(115deg,#eaf0ff,#f2edfc);border:1px solid #dee3f6;border-radius:12px;padding:21px 24px;margin-top:22px;transition:transform .2s,box-shadow .2s}.game-invite:hover{transform:translateY(-2px);box-shadow:0 6px 20px #5263b916}.game-invite-icon{display:grid;place-items:center;background:#fff9;color:#6f66bd;border-radius:12px;width:43px;height:43px;font-size:25px}.game-invite>span:nth-child(2){display:grid;gap:5px}.game-invite strong{font-size:16px;font-family:var(--font-display);font-weight:650}.game-invite>span:nth-child(2)>span{font-size:13px;color:#7984a2}.invite-cta{display:flex;align-items:center;gap:8px;font-size:14px;color:#5968c3;margin-left:auto;white-space:nowrap}.microphone-picker{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:18px 22px;background:white;border:1px solid var(--line);border-radius:10px;margin-top:16px;font-size:14px}.microphone-picker select{flex:1;min-width:140px;max-width:500px;border:1px solid #dee3ef;border-radius:5px;padding:8px;background:#f8f9fd;color:#647089}.microphone-picker p{font-size:12px;color:#7c87a0}
@media(max-width:760px){nav{gap:16px}nav .nav-play{font-size:12px}nav .nav-play span{display:none}nav button{font-size:12px}.brand{font-size:24px}.brand-mark{width:28px;height:28px}.motion-feedback{gap:8px;font-size:11px}.motion-rail{max-width:100px}.practice-hint{font-size:11px;margin-left:20px;margin-right:20px}.game-invite{padding:18px;gap:12px;flex-wrap:wrap}.game-invite strong{font-size:15px}.game-invite>span:nth-child(2){flex:1}.game-invite>span:nth-child(2)>span{font-size:12px;line-height:1.6}.invite-cta{font-size:13px}.microphone-picker{padding:16px}.game-invite-icon{width:36px;height:36px}.site-header nav button .icon{display:none}}
@media(max-width:370px){nav{gap:11px}.brand{font-size:22px}.brand-mark{width:25px;height:25px}nav .nav-play,nav button{font-size:11px}.motion-feedback{font-size:10px}.motion-rail{max-width:74px}.practice-hint{flex-direction:column;gap:5px}}

#volume-dialog{width:min(490px,calc(100% - 30px))}.volume-step-icon{display:flex;align-items:center;gap:20px;padding:22px;background:#edf1ff;border-radius:18px;margin:24px 0;color:#415bd8}.volume-step-icon .icon{width:40px;height:40px}.volume-step-icon strong{font-size:36px;letter-spacing:-1px}#volume-confirm{margin-top:24px}

.calibration-countdown{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;margin:0 auto 18px;background:#eef1ff;border:1px solid #d2dafb;color:var(--blue);font-size:36px;font-variant-numeric:tabular-nums;line-height:1}

/* Keep calibration in the viewport, independent of the page's scroll position. */
.is-calibrating{overflow:hidden}
#calibration-dialog{width:min(480px,calc(100% - 32px));max-height:calc(100dvh - max(16px,env(safe-area-inset-top)) - max(16px,env(safe-area-inset-bottom)));margin:auto;background:#fff;overflow:auto}
.calibration-content{padding:28px;display:flex;flex-direction:column;gap:16px}
.calibration-content .eyebrow{font-size:12px;letter-spacing:1px;color:#586993;line-height:1.5}
.calibration-content h2{font-size:28px;line-height:1.25;letter-spacing:-.6px;font-weight:650}
#calibration-description{font-size:16px;line-height:1.6;color:#667086}
.calibration-content .calibration-box{margin:4px 0}
.calibration-content .calibration-heading{color:#4356a0;font-size:15px;align-items:baseline}
#calibration-percent{font-variant-numeric:tabular-nums;flex:none;font-weight:600}
.calibration-content .progress-track{height:8px;margin:12px 0}
.calibration-content .calibration-box p{color:#667086;font-size:14px}
#calibration-cancel{width:100%;flex:none;justify-content:center;background:#edf0ff;color:#4356c8;box-shadow:none;min-height:46px;font-size:15px}
@media(max-width:400px){.calibration-content{padding:20px;gap:13px}.calibration-content h2{font-size:25px}.calibration-content .calibration-countdown{width:52px;height:52px;font-size:32px;margin-bottom:12px}}
@media(max-height:500px) and (min-width:600px){
  #calibration-dialog{width:min(740px,calc(100% - 40px));max-height:calc(100dvh - 24px)}
  .calibration-content{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;padding:20px 24px;align-items:start}
  .calibration-content .eyebrow,.calibration-content h2,#calibration-description{grid-column:1}
  .calibration-content h2{font-size:24px}
  #calibration-description{font-size:15px;line-height:1.5}
  .calibration-content .calibration-box{grid-column:2;grid-row:1/4;margin:0}
  .calibration-content .calibration-countdown{width:44px;height:44px;font-size:28px;margin-bottom:10px}
  #calibration-cancel{grid-column:2}
}