.lab-intro{padding-top:42px;padding-bottom:27px}.lab-intro>.eyebrow{margin-bottom:15px}.lab-intro>div{display:flex;align-items:center;justify-content:space-between;gap:35px}.lab-intro h1{font-size:clamp(3rem,6.5vw,6.7rem);line-height:1.05;letter-spacing:-.055em;margin:0}.lab-intro h1 .serif{color:#b73820}.lab-intro>div>p{max-width:330px;margin:0}.lab-jumps{display:flex;flex-wrap:wrap;gap:24px;margin-top:28px}.lab-jumps a{font-size:.875rem;text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:5px}.lab-context{font-size:.875rem;color:#4c5651;margin:20px 0 0}.lab-toolbar{position:sticky;top:0;z-index:25;background:#eeeee7;border-top:1px solid #c4c8be;border-bottom:1px solid #c4c8be}.lab-toolbar>.wrap{display:flex;align-items:center;gap:15px;padding-top:13px;padding-bottom:13px;flex-wrap:wrap}.lab-toolbar button{font-size:.875rem;padding:10px 16px;min-height:44px}.lab-volume{display:flex;align-items:center;gap:10px;font-size:.875rem}.lab-volume input{width:90px;accent-color:#b73820;min-height:30px}.lab-toolbar #lab-status{font-size:.875rem;flex:1;min-width:220px}.lab-note{margin-top:20px}.lab-demo{padding-top:65px;padding-bottom:65px;scroll-margin-top:110px}.lab-section-heading{display:grid;grid-template-columns:45px 1fr;gap:20px;margin-bottom:32px}.lab-number{font-size:1.1rem;padding-top:9px;border-top:1px solid currentColor}.lab-section-heading h2{font-size:clamp(2.5rem,4.4vw,4.3rem);margin:0 0 13px;letter-spacing:-.045em}.lab-section-heading p{margin:0;max-width:650px}.lab-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:45px;align-items:start}.lab-visual{background:#171b1a;padding:18px 20px 15px;color:#eeeee7;min-width:0}.room-plan{width:100%;height:auto;display:block;overflow:visible}.plan-floor{fill:#252c29;stroke:#eeeee7;stroke-width:3}.plan-grid{fill:none;stroke:#38443e;stroke-width:1}.plan-table circle{fill:#404b43;stroke:#708173;stroke-width:1.5}.plan-source circle{fill:#ff6342}.plan-listener circle{fill:#90c5b8}.plan-source .marker-ring,.plan-listener .marker-ring{fill:none;stroke:currentColor;stroke-width:1.5;opacity:.5}.plan-source{color:#ff6342}.plan-listener{color:#90c5b8}.room-plan text{fill:#eeeee7;font:17px Manrope,sans-serif;pointer-events:none}.room-plan .plan-dimension{font-size:15px;fill:#b9c6bc}.plan-routes path{fill:none;stroke:#829689;stroke-width:2;stroke-dasharray:7 7;opacity:.75}.plan-routes .route-direct{stroke:#ff6342;stroke-width:3;stroke-dasharray:none;opacity:1}.plan-routes .route-absorbed{stroke:#90c5b8;opacity:.32}.plan-surfaces rect{fill:#90c5b8}.plan-surfaces .ceiling-shape{fill:#90c5b8;fill-opacity:.09;stroke:#90c5b8;stroke-width:2;stroke-dasharray:8 6}.plan-surfaces text{fill:#b4d7cd;font-size:15px}.plan-legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:7px;font-size:.875rem}.plan-legend span{display:flex;align-items:center;gap:7px}.plan-legend i{display:block;width:15px;height:3px;background:#829689}.plan-legend .legend-direct{background:#ff6342}.plan-legend .legend-absorption{background:#90c5b8;height:7px}.plan-note{font-size:.875rem;line-height:1.5;color:#bcc9be;margin:14px 0 0}.lab-control>.eyebrow{margin-top:0}.lab-choices{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.lab-choice,.lab-secondary{background:transparent;color:inherit;border:1px solid #6c776d;padding:11px 14px;font-family:inherit;font-size:.875rem;cursor:pointer;min-height:44px}.lab-choice[aria-pressed=true]{background:#171b1a;border-color:#171b1a;color:#eeeee7}.lab-choice:hover,.lab-secondary:hover{border-color:currentColor}.lab-control p{line-height:1.65}.decay-readout{border-top:1px solid #b3bcb0;margin-top:25px;padding-top:18px}.decay-readout>span{font-size:.875rem}.decay-readout strong{display:flex;gap:9px;align-items:baseline;font-size:3.2rem;line-height:1.3;letter-spacing:-.04em}.decay-readout strong span{font-size:1.1rem;font-weight:400}.decay-readout p{font-size:.875rem;margin:4px 0 0}.decay-chart{width:100%;height:100px;margin:15px 0 10px}.decay-chart path{fill:none}.decay-axis{stroke:#9eaa9d;stroke-width:1}.decay-reference{stroke:#aeb8aa;stroke-width:2;stroke-dasharray:5 5}.decay-current{stroke:#b73820;stroke-width:3}.decay-chart text{fill:#4c5651;font:14px Manrope,sans-serif}.lab-play{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:20px}.lab-play .button{padding:12px 22px;min-height:46px}.lab-play .text-button{min-height:44px}.lab-small{font-size:.875rem;color:#4c5651;margin:13px 0 0}.lab-takeaway{margin:22px 0 0;padding-left:16px;border-left:2px solid #b73820}.lab-conversation{background:#ff6342}.lab-conversation .lab-small{color:#27312c}.lab-conversation .lab-takeaway{border-color:#171b1a}.lab-conversation :focus-visible{outline-color:#171b1a}.lab-range{display:block;margin:25px 0;font-size:1rem}.lab-range output{float:right;font-size:.875rem}.lab-range input{display:block;width:100%;accent-color:#171b1a;height:32px;margin-top:8px}.lab-details{border-top:1px solid currentColor;margin-top:25px;padding-top:15px;font-size:.875rem}.lab-details summary{cursor:pointer;font-size:1rem;line-height:1.6;min-height:36px}.lab-details p{margin:14px 0 0}.lab-details ul{padding-left:20px;line-height:1.8;margin:12px 0}.conversation-levels{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:15px;font-size:.875rem}.level-track{height:5px;background:#3a4941;margin-top:9px}.level-track span{display:block;height:100%;background:#ff6342}.position-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:23px}.position-grid fieldset{border:0;padding:0;margin:0;min-width:0}.position-grid legend{font-size:1rem;margin-bottom:17px}.position-control{display:block;margin:0 0 17px;font-size:.875rem}.position-control output{float:right}.position-control input{display:block;width:100%;margin-top:7px;height:30px;accent-color:#b73820}.path-readout{display:grid;grid-template-columns:1fr 1fr;gap:20px;border-top:1px solid #b3bcb0;padding-top:15px}.path-readout span{display:block;font-size:.875rem}.path-readout strong{font-size:1.5rem;line-height:1.8;font-weight:500}.lab-method{padding-top:45px;padding-bottom:60px;border-top:1px solid #b3bcb0}.lab-method h2{font-size:clamp(2rem,3vw,3rem)}.lab-method>p{max-width:720px}.lab-method .lab-details{max-width:850px}.lab-method-links{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;font-size:.875rem}#paths-plan .plan-source,#paths-plan .plan-listener{cursor:grab;touch-action:none}#paths-plan .plan-source:active,#paths-plan .plan-listener:active{cursor:grabbing}#paths-plan:focus-visible,#paths-plan g:focus-visible{outline:2px solid #eeeee7;outline-offset:8px}button:disabled{cursor:default;opacity:.55}
@keyframes trace-route{to{stroke-dashoffset:-28}}@keyframes voice-pulse{from{opacity:.8}to{opacity:.15}}
@media(max-width:1000px){.lab-grid{gap:28px;grid-template-columns:1.1fr 1fr}.lab-choices{gap:6px}.lab-choice{padding:10px 11px}.lab-toolbar #lab-status{flex-basis:100%}.lab-intro>div>p{max-width:280px}.lab-section-heading h2{font-size:3rem}}
@media(max-width:700px){.lab-intro{padding-top:30px}.lab-intro>div{display:block}.lab-intro h1{font-size:clamp(2.8rem,11.5vw,4.5rem);margin-bottom:20px}.lab-intro>div>p{max-width:none}.lab-jumps{gap:13px 20px;margin-top:23px}.lab-context{line-height:1.5}.lab-toolbar>.wrap{gap:8px 10px;padding-top:10px;padding-bottom:10px}.lab-toolbar button{padding:9px 11px}.lab-volume{flex:1;justify-content:flex-end}.lab-volume input{width:70px}.lab-toolbar #lab-status{min-width:0;font-size:.875rem}.lab-demo{padding-top:45px;padding-bottom:45px;scroll-margin-top:145px}.lab-section-heading{grid-template-columns:30px 1fr;gap:13px;margin-bottom:25px}.lab-section-heading h2{font-size:clamp(2.3rem,9vw,3rem)}.lab-grid{grid-template-columns:1fr;gap:25px}.lab-visual{padding:14px 12px}.lab-control>.eyebrow{margin-bottom:13px}.lab-choices{margin-bottom:15px}.decay-readout{margin-top:20px}.lab-play .button{padding:11px 17px}.lab-method{padding-top:35px;padding-bottom:40px}.lab-method-links{gap:15px;flex-direction:column}.position-grid{gap:18px}.lab-section-heading p{font-size:.95rem}}
@media(prefers-reduced-motion:reduce){}

.lab-toolbar input[type=range],.lab-range input,.position-control input{padding:0;border:0;margin-bottom:0;color:inherit}.lab-demo .text-button{color:inherit}.lab-toolbar .lab-volume input{margin-top:0}.lab-volume{white-space:nowrap}
.plan-waves{pointer-events:none}.plan-waves circle,.plan-waves path{fill:none;vector-effect:non-scaling-stroke}
.wave-front{stroke-width:3;stroke-linecap:round}.wave-female{stroke:#ff8164}.wave-male{stroke:#f4cc76}
.wave-reflected{stroke:#bcdfd2}.wave-emission{stroke-width:1.5}.wave-hit{stroke-width:2}.wave-bounce{stroke:#bcdfd2}.wave-arrival{stroke:#90c5b8}
.plan-source-second{color:#f4cc76}.plan-source-second>circle:first-child{fill:#f4cc76}.plan-source-second .marker-ring{fill:none;stroke:currentColor;stroke-width:1.5;opacity:.5}
.room-plan .is-speaking .marker-ring{stroke-width:4;opacity:1}.room-plan .plan-routes path{opacity:.35}
.room-plan .plan-routes .route-direct{opacity:.7}.wave-status{font-size:.875rem;min-height:1.5em;margin:0 0 12px;color:#eeeee7}
.lab-details .disclosure-heading{font-size:1rem;font-weight:500;line-height:1.6;margin:0 0 12px}
.lab-details p,.lab-details li{font-size:.95rem}.lab-method{scroll-margin-top:130px}
[data-voice=male]>circle:first-child{fill:#f4cc76}.plan-source[data-voice=male]{color:#f4cc76}
@media(max-width:700px){.room-plan text{font-size:26px}.room-plan .plan-dimension{font-size:24px}.plan-surfaces text{font-size:20px}}

.occupancy-section{background:#dae4da}.plan-people circle{fill:#90c5b8;opacity:.7}.plan-people .person-talking{fill:#f4cc76;opacity:1}.plan-legend .legend-talker{background:#f4cc76;height:7px}.occupancy-check{display:flex;align-items:flex-start;gap:12px;font-size:.95rem;line-height:1.5;margin:24px 0}.occupancy-check input{width:20px;height:20px;accent-color:#b73820;padding:0;margin:2px 0 0;flex-shrink:0}.occupancy-readouts{display:grid;grid-template-columns:1fr 1fr;gap:15px;border-top:1px solid #9aaa99;padding-top:18px}.occupancy-readouts>div:last-child{grid-column:1/-1}.occupancy-readouts span{display:block;font-size:.8rem}.occupancy-readouts strong{display:block;font-size:1.7rem;font-weight:500;margin-top:6px}.occupancy-explanation{display:grid;grid-template-columns:1fr 1fr;gap:55px;margin-top:38px;border-top:1px solid #9aaa99;padding-top:20px}.occupancy-explanation h3{font-size:1.25rem}.occupancy-explanation p{font-size:.95rem;line-height:1.7}.occupancy-explanation blockquote{margin:18px 0;border-left:2px solid #b73820;padding-left:18px;font-family:Georgia,serif;font-size:1.35rem;line-height:1.6}@media(max-width:700px){.occupancy-explanation{grid-template-columns:1fr;gap:15px}.occupancy-explanation blockquote{font-size:1.2rem}}