@font-face{font-family:'DM Sans';font-style:normal;font-weight:100 1000;font-display:swap;src:url('./fonts/dm-sans.ttf') format('truetype')}
@font-face{font-family:'Manrope';font-style:normal;font-weight:200 800;font-display:swap;src:url('./fonts/manrope.ttf') format('truetype')}
:root{--paper:#f5f3ee;--ink:#272d2b;--muted:#6b716c;--line:#dcded5;--accent:#a84f35;--white:#fffefa;--wide:#b15d40;--small:#527b73;--mono:ui-monospace,SFMono-Regular,Consolas,monospace;font-family:'DM Sans',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;font-weight:400;scroll-behavior:smooth}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #bc6c45;outline-offset:4px}button:disabled{cursor:wait;opacity:.6}.page{max-width:1552px;padding:0 52px;margin:auto}.masthead{height:106px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:15px;font-family:'Manrope',sans-serif;font-weight:800;letter-spacing:2.2px;font-size:18px}.brand svg{width:35px;height:35px;fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round}.brand-sub{display:block;font-family:var(--mono);font-size:8px;letter-spacing:1.4px;font-weight:400;margin-top:7px}.masthead nav{display:flex;gap:34px;align-items:center;font-size:12px;font-weight:500}.masthead nav button{border:0;background:none;padding:10px 0}.masthead nav button span{margin-left:9px;color:var(--accent)}.nav-active{position:relative}.nav-active:after{content:'';height:4px;width:4px;border-radius:100%;background:var(--accent);position:absolute;bottom:-11px;left:50%}.intro{display:flex;justify-content:space-between;align-items:flex-end;padding:44px 0 36px}.eyebrow{font:9px var(--mono);letter-spacing:1.6px;display:flex;align-items:center;gap:12px;color:#666f64}.tiny-cross{font-size:16px;color:var(--accent)}.eyebrow-rule{width:26px;height:1px;background:#b7beb1}h1{font-family:'Manrope',sans-serif;font-size:64px;font-weight:500;letter-spacing:-3.5px;line-height:1.05;margin:19px 0 18px}h1+p{font-size:15px;line-height:1.6;color:var(--muted);margin:0}.intro-note{font:9px var(--mono);letter-spacing:1px;margin-bottom:3px}.intro-note p{font-family:'DM Sans',sans-serif;font-size:12px;line-height:1.7;letter-spacing:0;color:var(--muted);margin:11px 0 0 14px}.live-dot{display:inline-block;width:5px;height:5px;background:#568376;border-radius:50%;margin-right:8px;vertical-align:2px}.toolbar{display:flex;align-items:center;gap:0;background:var(--white);border:1px solid var(--line);border-radius:8px;padding:12px 18px;margin-bottom:18px;min-height:74px}.transport{display:flex;gap:16px;align-items:center;padding-right:27px}.play-button{border:0;background:var(--accent);color:white;display:flex;align-items:center;gap:11px;font-size:12px;font-weight:600;border-radius:4px;padding:12px 20px;min-width:105px;justify-content:center}.play-button:hover{background:#8e412b}#play-icon{font-size:12px;line-height:15px;font-family:Arial;min-width:12px}.reset-button{border:0;background:none;font-size:12px;padding:8px 0;display:flex;gap:7px;align-items:center;color:#60695f}.reset-button svg{width:15px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.reset-button:hover{color:var(--accent)}.time-block{display:flex;flex-direction:column;padding:0 28px;border-left:1px solid var(--line);gap:6px}.control-label{font:8px var(--mono);letter-spacing:1.2px;color:var(--muted)}#clock{font:19px var(--mono);letter-spacing:-.6px;line-height:20px;min-width:88px}.speed-block{padding-left:28px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:5px}.speed-block select{border:none;background:transparent;font-size:12px;padding:0 22px 0 0;color:var(--ink);cursor:pointer;height:20px;max-width:120px}.flow-control{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:12px;position:relative}.flow-icon{font-size:20px;line-height:1;color:#747b70;margin-right:3px}.flow-control input{position:absolute;right:0;width:36px;height:22px;opacity:0;cursor:pointer;z-index:2}.switch{height:20px;width:35px;background:#b9bfb3;border-radius:30px;display:inline-block;position:relative;margin-left:4px;transition:background .2s}.switch:after{content:'';position:absolute;background:white;width:14px;height:14px;border-radius:50%;left:3px;top:3px;transition:transform .15s}.flow-control input:checked+.switch{background:#577c6d}.flow-control input:checked+.switch:after{transform:translateX(15px)}.flow-control input:focus-visible+.switch{outline:3px solid var(--accent);outline-offset:4px}.sim-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.sim-panel{border:1px solid #2a3734;background:#182822;border-radius:8px;overflow:hidden;color:#edf0e5;min-width:0}.panel-heading{display:flex;align-items:center;justify-content:space-between;padding:20px 23px 16px;gap:12px}.panel-heading>div{display:flex;align-items:center;gap:13px}.scenario-id{font:10px var(--mono);color:#879b8e}.panel-heading h2{font-family:'Manrope',sans-serif;font-size:17px;font-weight:600;letter-spacing:-.5px;margin:0}.opening-tag{font:9px var(--mono);color:#c3d0c3;background:#283a30;border:1px solid #3c4c40;border-radius:3px;padding:6px 9px;white-space:nowrap}.simulation-wrap{position:relative;padding:0 14px}.simulation-wrap canvas{display:block;width:100%;height:auto;aspect-ratio:1.68;touch-action:pan-y}.panel-stats{display:flex;justify-content:space-between;align-items:center;margin:0 23px;padding:17px 0 20px;border-top:1px solid #39463b}.stat-label{font:8px var(--mono);letter-spacing:1px;color:#a6b3a7;display:flex;align-items:center;gap:6px}.series-dot{display:inline-block;width:5px;height:5px;border-radius:50%}.wide-dot{background:#e5a383}.small-dot{background:#a4c5ac}.temperature{font-family:'Manrope',sans-serif;font-size:34px;line-height:1.3;font-weight:500;letter-spacing:-1.2px;display:block;margin-top:6px;font-variant-numeric:tabular-nums}.temperature span{font-size:17px;letter-spacing:0;color:#c3cdc1;font-weight:400}.cooling-stat{text-align:right}.cooling-stat output{display:block;margin-top:13px;font:15px var(--mono);color:#d2dacc}.below-sims{display:flex;justify-content:space-between;align-items:center;padding:20px 0 26px;gap:20px}.legend{display:flex;gap:13px;align-items:center}.legend-title{font:8px var(--mono);letter-spacing:1.2px;color:#5e685b;white-space:nowrap}.scale-wrap{width:180px;padding-top:12px}.color-scale{height:6px;border-radius:4px;background:linear-gradient(90deg,#233a72 0%,#477bba 22.22%,#72bcbf 33.33%,#bdcfbb 51.11%,#eac488 66.67%,#eaa373 80%,#c75a46 100%)}.scale-ticks{display:flex;justify-content:space-between;margin-top:5px;font:8px var(--mono);color:#646e60}.fixed-scale{font-size:10px;color:#7a8074;margin-left:3px}.simulation-note{display:flex;align-items:center;color:#6a7465;font:9px var(--mono);gap:0}.simulation-note .live-dot{margin-right:6px;vertical-align:0}.note-divider{padding:0 10px;color:#a8afa1}.analysis-grid{display:grid;grid-template-columns:365px minmax(0,1fr);gap:18px}.conditions,.comparison{border:1px solid var(--line);border-radius:7px;background:#faf9f5;padding:24px}.section-heading{display:flex;justify-content:space-between;align-items:start;gap:12px}.section-heading h2{font-family:'Manrope',sans-serif;font-size:14px;letter-spacing:-.2px;font-weight:650;margin:0}.section-heading p{font-size:11px;color:#737b6e;margin:7px 0 0}.section-index{font:8px var(--mono);letter-spacing:.7px;color:#8c9286;padding-top:4px}.range-group{margin-top:23px}.range-title{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:11px}.range-title output{font:12px var(--mono);white-space:nowrap}.range-number{font:8px var(--mono);color:#8c9586;display:inline-block;margin-right:9px}.range-ends{font:8px var(--mono);color:#6d7767;display:flex;justify-content:space-between}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:6px;background:linear-gradient(to right,#b56c50 0 var(--progress),#dadfd2 var(--progress) 100%);margin:15px 0 11px;cursor:pointer;display:block}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:13px;height:13px;border-radius:50%;background:var(--accent);border:3px solid #f9f5ec;box-shadow:0 0 0 1px #a85b3c}input[type=range]::-moz-range-thumb{width:8px;height:8px;border-radius:50%;background:var(--accent);border:3px solid #f9f5ec;box-shadow:0 0 0 1px #a85b3c}.conditions-note{font-size:10px;color:#7b8275;margin:21px 0 0}.text-button{border:0;background:none;font-size:10px;padding:0;white-space:nowrap;color:#697263}.text-button:hover{text-decoration:underline}.text-button span{font-size:15px;margin-left:6px}.chart-legend{display:flex;gap:22px;align-items:center;font-size:10px;color:#596451;margin-top:21px}.chart-legend>span{display:flex;align-items:center;gap:7px}.series-line{width:17px;height:2px;display:inline-block}.wide-line{background:var(--wide)}.small-line{background:var(--small);background:repeating-linear-gradient(90deg,var(--small) 0 4px,transparent 4px 6px)}.chart-unit{margin-left:auto;font-family:var(--mono)}#chart{width:100%;height:198px;display:block;margin-top:8px}.comparison-foot{border-top:1px solid #e4e5dc;padding-top:13px;display:flex;align-items:center;justify-content:space-between;gap:20px}.comparison-foot p{font-size:11px;color:#656f5d;margin:0;line-height:1.4}.comparison-foot>span{font:7px var(--mono);letter-spacing:.7px;color:#919889;white-space:nowrap}.reading{display:grid;grid-template-columns:1fr 1.35fr auto;gap:45px;align-items:start;padding:47px 0 39px}.reading .eyebrow{font-size:8px;letter-spacing:1.5px}.reading h2{font-family:'Manrope',sans-serif;font-size:25px;font-weight:500;letter-spacing:-1px;margin:13px 0 0;line-height:1.3}.reading-text{font-size:12px;line-height:1.8;color:#6a7363;padding-top:1px;max-width:570px}.reading-text p{margin:0 0 10px}.model-button{border:1px solid #bfc6b6;background:transparent;border-radius:4px;padding:12px 16px;font-size:11px;white-space:nowrap;margin-top:26px}.model-button:hover{background:#e8ecdf}.model-button span{margin-left:16px}.model-details{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.model-details summary{cursor:pointer;padding:20px 0;display:flex;align-items:center;font-size:12px;gap:22px;list-style:none}.model-details summary::-webkit-details-marker{display:none}.details-meta{font:8px var(--mono);letter-spacing:.8px;color:#818a77}.details-plus{margin-left:auto;font-size:21px;font-weight:300;color:#747e68}.model-details[open] .details-plus{transform:rotate(45deg)}.model-content{display:grid;grid-template-columns:1fr 1fr;gap:25px 50px;padding:12px 0 30px}.model-content h3{font-size:14px;font-weight:600;margin:0 0 10px}.model-content p{font-size:12px;line-height:1.8;color:#697360;margin:0 0 12px}.equations{font:11px/2 var(--mono);padding:15px;border:1px solid #dce1d3;background:#eeefe8;margin:12px 0;overflow-x:auto}.model-references{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:15px 30px;border-top:1px solid var(--line);padding-top:20px}.model-references span{font:8px var(--mono);letter-spacing:.8px}.model-references a{font-size:11px;text-decoration:underline;text-underline-offset:3px}.site-footer{display:flex;justify-content:space-between;align-items:center;padding:27px 0 34px;font-size:9px;color:#7b8372}.site-footer>span:first-child{font-size:9px;letter-spacing:.3px}.footer-slash{padding:0 10px;color:#afb6a5}.site-footer a{color:#596550}.probe{position:absolute;pointer-events:none;border:1px solid #526a5b;background:rgba(19,35,27,.94);color:#f4f4e9;border-radius:4px;padding:7px 10px;font:11px var(--mono);box-shadow:0 3px 12px #0002;z-index:4;white-space:nowrap}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:10}.skip-link:focus{top:10px}.noscript{padding:30px;background:#ffe8b8;position:fixed;bottom:0;margin:0;width:100%}
@media(min-width:1500px){.simulation-wrap canvas{aspect-ratio:1.78}.intro{padding-top:49px;padding-bottom:40px}}
@media(max-width:1100px){.page{padding:0 30px}.analysis-grid{grid-template-columns:320px minmax(0,1fr)}.conditions,.comparison{padding:20px}.reading{gap:28px;grid-template-columns:1fr 1.4fr}.model-button{grid-column:2;margin-top:0;justify-self:start}.below-sims{align-items:flex-start}.fixed-scale{display:none}.legend{gap:10px}.simulation-note{padding-top:10px}.panel-heading{padding:18px 18px 12px}.panel-heading h2{font-size:15px}.opening-tag{font-size:8px;padding:5px}.panel-heading>div{gap:9px}.panel-stats{margin:0 18px}.stat-label{font-size:7px;letter-spacing:.6px}.temperature{font-size:31px}.cooling-stat output{font-size:13px}.simulation-wrap{padding:0 8px}.comparison-foot>span{display:none}}
@media(max-width:760px){.page{padding:0 20px}.masthead{height:84px}.brand{font-size:15px;gap:11px}.brand-sub{font-size:7px}.brand svg{width:29px}.masthead nav{gap:0}.masthead nav>a{display:none}.masthead nav button{font-size:11px}.intro{padding:31px 0 26px}.intro-note{display:none}h1{font-size:51px;letter-spacing:-2.6px;margin:16px 0}h1+p{font-size:13px}.eyebrow{font-size:8px;gap:9px;letter-spacing:1px}.toolbar{padding:12px;flex-wrap:wrap;gap:13px 0;justify-content:space-between}.transport{padding-right:16px;gap:11px}.play-button{padding:11px 14px;min-width:88px;font-size:11px}.reset-button{font-size:11px}.time-block{padding:0 0 0 17px;flex:1;max-width:145px}.speed-block{padding:0;border:0;flex-direction:row;align-items:center;gap:9px;flex-basis:48%}.speed-block select{font-size:11px;width:95px}.flow-control{font-size:11px;margin-left:0;gap:7px}.flow-icon{font-size:17px}.control-label{font-size:7px;letter-spacing:.7px}#clock{font-size:18px}.sim-grid{grid-template-columns:1fr;gap:16px}.panel-heading{padding:19px 22px 12px}.panel-heading h2{font-size:18px}.opening-tag{font-size:10px;padding:6px 8px}.scenario-id{font-size:10px}.simulation-wrap{padding:0 14px}.simulation-wrap canvas{aspect-ratio:1.72}.panel-stats{margin:0 22px;padding:14px 0 18px}.stat-label{font-size:8px;letter-spacing:.7px}.temperature{font-size:32px}.cooling-stat output{font-size:14px}.below-sims{flex-direction:column;gap:8px;padding:21px 0}.legend{width:100%;gap:18px}.scale-wrap{flex:1;max-width:260px}.simulation-note{padding-top:0;font-size:8px}.analysis-grid{grid-template-columns:1fr}.conditions{padding:23px}.range-group{margin-top:23px}.range-title{font-size:12px}.comparison{padding:23px}.chart-legend{font-size:10px;gap:20px}#chart{height:200px}.reading{grid-template-columns:1fr;gap:19px;padding:35px 0}.reading-text{font-size:12px}.reading h2{font-size:26px}.model-button{grid-column:1;margin-top:0}.model-content{grid-template-columns:1fr;gap:20px;padding-top:16px}.details-meta{display:none}.site-footer{gap:18px;align-items:start;flex-wrap:wrap;line-height:1.6;padding:23px 0}.site-footer>span:nth-child(2){display:none}.site-footer a{font-size:8px}.model-references{flex-direction:column;gap:13px}.equations{font-size:9px}.section-heading h2{font-size:14px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*{transition:none!important}}

/* Small scientific labels retain readable sizes at every breakpoint. */
.legend-title{font-size:9px}.scale-ticks{font-size:10px}.fixed-scale{font-size:11px}.stat-label{font-size:9px;letter-spacing:.5px}.control-label{font-size:9px;letter-spacing:.6px}.chart-legend{font-size:11px}.conditions-note{line-height:1.5}.range-ends{font-size:9px}.section-heading p{font-size:12px}.simulation-note{font-size:10px}.range-title{font-size:12px}
@media(max-width:760px){.stat-label{font-size:8px}.control-label{font-size:8px}.legend-title{font-size:8px}.simulation-note{font-size:9px}.range-title{font-size:12px}}
@media(min-width:761px){.masthead{height:84px}.intro{padding:28px 0}h1{font-size:56px;margin:14px 0;letter-spacing:-2.8px}}
/* Compact simulation workspace. */
.app-header{height:62px;display:flex;align-items:center;justify-content:space-between;gap:20px}.app-header h1{font-family:'Manrope',sans-serif;font-size:21px;font-weight:600;line-height:1.2;letter-spacing:-.5px;margin:0}.app-header .text-button{font-size:12px}.scenario-heading{align-items:flex-end;flex-wrap:wrap;min-height:87px;padding:18px 22px 14px}.panel-heading>.scenario-select{display:flex;flex-direction:column;align-items:flex-start;gap:8px;flex:1;min-width:240px}.scenario-select label{font:10px var(--mono);color:#acbbaa;letter-spacing:.5px}.scenario-select select{width:100%;max-width:350px;border:0;border-bottom:1px solid #60705c;border-radius:0;background:#182822;color:#f2f1e6;padding:0 18px 7px 0;font-size:16px;letter-spacing:-.3px;cursor:pointer;outline-offset:4px}.scenario-select select:focus-visible{outline-color:#e8b384}.opening-tag{margin-bottom:4px;font-size:10px}.scale-wrap{width:260px}.color-scale{background:linear-gradient(90deg,#233a72 0%,#477bba 13.333%,#72bcbf 20%,#bdcfbb 30.667%,#eac488 40%,#eaa373 48%,#c75a46 60%,#9e3a33 80%,#66223f 100%)}.scale-ticks{font-size:10px}.analysis-grid{grid-template-columns:340px minmax(0,1fr)}.conditions,.comparison{padding:22px}.range-group{margin-top:19px}.setting-scope{margin-top:8px}.conditions-note{font-size:11px}.chart-legend{flex-wrap:wrap;gap:10px 22px}#chart{height:284px}.comparison-foot p{font:12px var(--mono)}.model-details{margin:22px 0 26px}.model-details summary{padding:16px 0}.model-content h3{font-size:13px}.model-content{gap:20px 35px}.model-content p{font-size:12px}
@media(max-width:1000px){.scenario-heading{min-height:119px}.panel-heading>.scenario-select{min-width:100%}.analysis-grid{grid-template-columns:300px minmax(0,1fr)}}
@media(max-width:760px){.app-header{height:60px}.app-header h1{font-size:20px}.scenario-heading{min-height:87px}.analysis-grid{grid-template-columns:1fr}.legend{gap:12px}.scale-wrap{min-width:200px}.model-details{margin-top:20px}#chart{height:250px}}

/* Ventilation controls and two-sided cutaway. */
[hidden]{display:none!important}.field-block{margin-left:24px;padding-left:24px}.field-block select{min-width:112px}.simulation-wrap canvas{aspect-ratio:2.05}.fresh-stats{display:flex;justify-content:space-between;gap:14px;margin:0 23px;padding:0 0 18px;font-size:11px;color:#bcc9ba}.fresh-stats span{display:flex;gap:9px;align-items:center}.fresh-stats output{font:12px var(--mono);color:#edf3dc}.panel-stats{padding-bottom:13px}.color-scale.fresh-scale{background:linear-gradient(90deg,rgb(48,53,85),rgb(64,131,139),rgb(195,229,181))}.below-sims{flex-wrap:wrap;gap:8px 20px;padding:16px 0 20px}.fixed-scale{max-width:240px;font-size:10px;line-height:1.4}.analysis-grid{grid-template-columns:minmax(430px,1.05fr) minmax(0,1fr)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:27px;row-gap:0}.direction-caption{font-size:10px;color:#6b7565;margin:8px 0 0}.chart-legend{gap:10px 14px}.opening-tag{font-size:9px}.scenario-select select{max-width:100%}.panel-heading>.scenario-select{min-width:235px}.settings-grid .range-group{min-width:0}.field-block .control-label{white-space:nowrap}.setting-scope{max-width:490px}

/* Independent room geometry and heating controls. */
.configuration-heading{display:block;padding:17px 22px 16px}.panel-heading>.configuration-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px;font:11px var(--mono);color:#acbbaa}.configuration-topline .opening-tag{margin:0}.panel-heading>.configuration-controls{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:18px}.configuration-controls>div{min-width:0}.configuration-controls label{display:block;font:10px var(--mono);color:#acbbaa;margin-bottom:8px}.configuration-controls select{display:block;width:100%;min-width:0;color:#f2f1e6;background:#182822;border:0;border-bottom:1px solid #60705c;border-radius:0;padding:0 15px 7px 0;font-size:13px;cursor:pointer}.configuration-controls select:focus-visible{outline-color:#e8b384}.configuration-controls option{background:#182822}.chart-legend>span{min-width:0}.chart-legend>span:not(.chart-unit){flex:1;align-items:flex-start;line-height:1.45}.chart-legend .series-line{flex-shrink:0;margin-top:7px}
.panel-heading>.opening-controls{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-top:19px}.opening-controls>div{min-width:0}.opening-controls .range-title{font-size:11px;color:#bdcbb9}.opening-controls .range-title output{font:11px var(--mono);color:#f2f1e6}.opening-controls .range-ends{font-size:8px;color:#92a68f}.opening-controls input[type=range]{background:linear-gradient(to right,#d0a17d 0 var(--progress),#455a4d var(--progress) 100%);margin:13px 0 10px}.opening-controls input[type=range]::-webkit-slider-thumb{background:#e6b38d;border:3px solid #182822;box-shadow:0 0 0 1px #c99e7d}.opening-controls input[type=range]::-moz-range-thumb{background:#e6b38d;border:3px solid #182822;box-shadow:0 0 0 1px #c99e7d}.opening-controls input:disabled{cursor:default;opacity:.3}.opening-controls>div:has(input:disabled) .range-title output{color:#9bad99}.opening-controls input:focus-visible{outline-color:#e8b384}

.panel-heading>.fan-controls{grid-template-columns:minmax(0,.85fr) minmax(0,.8fr) minmax(0,1.05fr) minmax(0,1.3fr);gap:14px;border-top:1px solid #455a4d;padding-top:15px;margin-top:15px;align-items:start}.fan-controls .range-title label{margin:0;font:10px var(--mono)}.fan-controls select:disabled{opacity:.4;cursor:default}.fan-controls .range-title output{font-size:11px}

/* Comparison setup: differences are marked in both rooms without moving controls. */
.comparison-tools{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:-5px 0 15px;min-height:34px}
.comparison-tools p{margin:0;font-size:12px;line-height:1.5;color:#63705d}
.comparison-tools .has-differences{color:#704e37}
.has-differences::before{content:'◆';font-size:9px;margin-right:8px;color:#a0663c}
.copy-controls{display:flex;align-items:center;gap:12px;flex-shrink:0}
#copy-note{font-size:10px;color:#727b69}
.copy-button{padding:8px 12px;border:1px solid #b6bead;border-radius:4px;background:#fcfbf6;color:#344b3c;font-size:12px;font-weight:600;white-space:nowrap}
.copy-button:hover:not(:disabled){background:#e9ede3;border-color:#7c9079}
.copy-button:disabled{opacity:.45;cursor:default}
.setting-different{position:relative;border-radius:2px;background:#e8b38412;box-shadow:0 0 0 5px #e8b38412}
.setting-different::before{content:'';position:absolute;left:-7px;top:0;bottom:0;width:2px;border-radius:2px;background:#e8b384}
.setting-different label{color:#f2cba7}
.setting-different select{background:transparent;border-bottom-color:#c99e7d}

/* Pending edits remain distinct from A/B differences and the applied run. */
.setting-pending{outline:1px dashed #91babb;outline-offset:5px;border-radius:2px}
.conditions .setting-pending{outline-color:#497d80}
.pending-badge{display:inline-block;margin-left:9px;padding:3px 6px;border:1px dashed #91babb;border-radius:3px;color:#c4e3df;font:10px var(--mono)}
.conditions .pending-badge{color:#356b6d;border-color:#497d80}
.pending-bar{position:fixed;z-index:10;left:50%;bottom:20px;transform:translateX(-50%);width:calc(100% - 104px);max-width:1448px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 20px;border:1px solid #91aaa3;border-radius:8px;background:#f3f8f3;box-shadow:0 6px 30px #18282225}
.pending-message{display:flex;flex-direction:column;gap:4px;font-size:12px;color:#536c60}
.pending-message strong{font-size:14px;font-weight:600;color:#26493e}
.pending-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.apply-button{border:1px solid #294f42;border-radius:4px;background:#294f42;color:#fffefa;padding:10px 16px;font-size:13px;font-weight:600;white-space:nowrap}
.apply-button:hover{background:#376553}
.apply-button:disabled{opacity:.45;cursor:default}
.has-pending-settings{padding-bottom:100px}

/* Simulation-first desktop layout. Configuration stays beneath each room. */
.page{max-width:1840px;padding:0 28px}
.toolbar{position:sticky;top:10px;z-index:6;box-shadow:0 5px 18px #1828220d}
.sim-grid{align-items:start;gap:20px}
.room-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 22px 12px;min-height:96px}
.room-heading h2{margin:0;font:600 18px/1.3 'Manrope',sans-serif;letter-spacing:-.4px}
.room-heading .pending-badge{margin:7px 0 0;font-size:11px}
.room-temperature{text-align:right;flex-shrink:0}
.room-temperature .stat-label{display:block;font:12px/1.4 'DM Sans',sans-serif;letter-spacing:0;color:#c4d0c3}
.room-temperature .temperature{font-size:36px;line-height:1.15;margin-top:3px}
.room-temperature .temperature span{font-size:19px}
.simulation-wrap{padding:0 10px}
.simulation-wrap canvas{aspect-ratio:1.9}
.room-metrics{display:grid;grid-template-columns:1fr .8fr 1.2fr;gap:16px;margin:0 22px;padding:8px 0 18px}
.room-metrics>div{display:flex;flex-direction:column;gap:6px;min-width:0}
.room-metrics>div:last-child{text-align:right}
.room-metrics span{font-size:12px;line-height:1.4;color:#bdccba}
.room-metrics output{font:14px/1.4 var(--mono);color:#f1f3e8}
.room-settings{border-top:1px solid #4c6254;background:#20332a}
.settings-tabs{display:flex;padding:0 14px;border-bottom:1px solid #4c6254}
.settings-tabs button{display:flex;align-items:center;justify-content:center;gap:8px;flex:1;min-width:0;padding:13px 10px;border:0;border-bottom:2px solid transparent;background:transparent;color:#bdcbbb;font:500 13px/1.4 'DM Sans',sans-serif;cursor:pointer}
.settings-tabs button:hover{background:#ffffff07;color:#f4f3e8}
.settings-tabs button[aria-selected=true]{border-bottom-color:#ecbc94;background:#ffffff06;color:#fff7e9;font-weight:600}
.settings-tabs button:focus-visible{outline-offset:-4px;outline-color:#e8b384}
.tab-difference{color:#e5b18b;font-size:9px}
.tab-pending{min-width:18px;border:1px dashed #9bc8c7;border-radius:3px;color:#ceeeea;font:11px/17px var(--mono);text-align:center}
.settings-panel{min-height:202px;padding:20px 22px 22px}
.settings-panel .configuration-controls{display:grid;grid-template-columns:minmax(0,1fr);gap:20px}
.settings-panel .opening-controls{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;margin-top:20px}
.settings-panel .fan-controls{margin-top:0;row-gap:20px;column-gap:24px;border:0;padding:0}
.configuration-controls label,.fan-controls .range-title label{font:12px/1.4 'DM Sans',sans-serif;color:#c4d0c3;margin-bottom:8px}
.configuration-controls select{font-size:14px;line-height:1.4;min-height:30px;padding-bottom:7px;background:transparent;color:#f9f6ed}
.configuration-controls option{background:#20332a}
.window-label{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.window-label label{margin:0}
.window-label .opening-tag{font-size:10px;margin:0;padding:3px 6px;color:#c4d0c3}
.settings-panel .range-title{font-size:12px;color:#c4d0c3}
.settings-panel .range-title label{margin:0}
.settings-panel .range-title output{font-size:13px}
.settings-panel .range-ends{font-size:10px;color:#b1c1ad}
.settings-panel input[type=range]{margin:14px 0 11px}
.settings-hint{font-size:12px;line-height:1.6;color:#b7c7b4;margin:20px 0 0}
.settings-panel .setting-different label{color:#f2cba7}
.settings-panel select:disabled{opacity:.55}
.control-label{font-size:11px;letter-spacing:.5px;color:#626c60}
.comparison-tools p{font-size:13px}
#copy-note{font-size:11px}
.copy-button{font-size:13px}
.legend-title,.scale-ticks,.fixed-scale,.simulation-note{font-size:11px}
.range-title{font-size:13px}
.range-ends{font-size:10px;color:#66715f}
.conditions-note,.direction-caption{font-size:12px;color:#65715f}
.section-heading h2{font-size:16px}
.text-button{font-size:12px}
.pending-bar{width:calc(100% - 56px);max-width:1784px}

/* Fan choices map directly to room position and blowing direction. */
.settings-panel{min-height:230px}
.settings-panel .fan-controls{grid-template-columns:minmax(0,1fr) minmax(0,1fr) 122px;gap:18px 20px}
.fan-position-control{grid-column:1/3}
.fan-direction-control{grid-column:3;grid-row:1/3}
.fan-control-label{display:block;margin-bottom:8px;font-size:12px;line-height:1.4;color:#c4d0c3}
.setting-different .fan-control-label{color:#f2cba7}
.fan-position-buttons{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}
.fan-position-buttons button,.fan-direction-buttons button{border:1px solid #6b8172;border-radius:4px;background:#192c23;color:#dde7d8;font:13px 'DM Sans',sans-serif;min-height:34px;cursor:pointer}
.fan-direction-buttons{display:grid;grid-template-columns:repeat(3,38px);grid-template-rows:repeat(3,34px);gap:4px}
.fan-direction-buttons button{font:23px/1 var(--mono);padding:0}
.fan-direction-buttons [data-value=up]{grid-column:2;grid-row:1}
.fan-direction-buttons [data-value=left]{grid-column:1;grid-row:2}
.fan-direction-buttons [data-value=right]{grid-column:3;grid-row:2}
.fan-direction-buttons [data-value=down]{grid-column:2;grid-row:3}
.fan-position-buttons button:hover:not(:disabled),.fan-direction-buttons button:hover:not(:disabled){background:#3b5141;border-color:#d3d7bf}
.fan-position-buttons button[aria-pressed=true],.fan-direction-buttons button[aria-pressed=true]{background:#edc7a4;border-color:#edc7a4;color:#24382b;font-weight:600}
.fan-direction-buttons button:disabled{opacity:.35;cursor:default}
.fan-drag-hint{margin:13px 0 0;font-size:11px;line-height:1.4;color:#b7c7b4}
.fan-edit-overlay{position:absolute;inset:0;pointer-events:none}
.fan-drag-handle{position:absolute;transform:translate(-50%,-50%);width:32px;height:32px;padding:0;border:1px solid #f4ead0;border-radius:50%;background:#182822e8;color:#fff7e6;pointer-events:auto;cursor:ns-resize;touch-action:none;user-select:none;z-index:2}
.fan-drag-handle:hover,.fan-drag-handle:focus-visible{box-shadow:0 0 0 4px #fff3d640}
.fan-handle-arrow{font:22px/1 var(--mono)}
.fan-handle-label{position:absolute;left:calc(100% + 7px);top:50%;transform:translateY(-50%);padding:4px 6px;border-radius:3px;background:#182822ed;color:#fff7e6;font:10px/1.3 var(--mono);white-space:nowrap;pointer-events:none}
[data-label-side=left] .fan-handle-label{left:auto;right:calc(100% + 7px)}
.is-pending .fan-drag-handle{border:2px dashed #b6e6e2;color:#c6f6ef;background:#163e39f2}
.is-pending .fan-handle-label{color:#c6f6ef;border:1px dashed #91babb}
.fan-height-guide{position:absolute;width:0;border-left:1px dashed #f1f5ddaa;opacity:0}
.fan-height-guide::before,.fan-height-guide::after{content:'';position:absolute;left:-5px;width:9px;border-top:1px solid #f1f5dd}
.fan-height-guide::before{top:0}.fan-height-guide::after{bottom:0}
.fan-edit-overlay:focus-within .fan-height-guide,.fan-edit-overlay:has(.fan-drag-handle:hover) .fan-height-guide,.fan-edit-overlay.is-dragging .fan-height-guide{opacity:1}

/* Exact-value entry shares the sliders' units and supported physical steps. */
.editable-value{display:inline-flex;align-items:center;gap:6px;flex-shrink:0;font:12px var(--mono)}
.value-input{width:59px;min-width:0;padding:5px 6px;border:1px solid #7d9181;border-radius:4px;background:#192c23;color:#fff6e7;font:13px/1.3 var(--mono);text-align:right}
.value-input:hover{border-color:#c8d4be}
.value-input:focus{outline:2px solid #e8b384;outline-offset:2px}
.value-input:disabled{opacity:.4;cursor:not-allowed}
.value-unit{color:#c6d4bf;white-space:nowrap}
.conditions .value-input{background:#fffdf8;border-color:#acb9a5;color:#294334}
.conditions .value-unit{color:#55664f}
.range-title{gap:8px}
.fan-controls .range-title{display:flex;flex-wrap:wrap;row-gap:5px;align-items:center;min-height:61px}
.fan-controls .range-title label{flex-basis:100%;white-space:nowrap}
.fan-controls .range-title .editable-value{margin-left:auto}
.settings-panel{min-height:254px}
.window-summary{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#c4d0c3;font-size:12px}
.window-summary .opening-tag{margin:0;font-size:11px}
.settings-panel .window-openings{margin-top:22px}
.window-openings .range-title{flex-wrap:wrap}
.field-error{margin:7px 0 0;font-size:11px;line-height:1.4;color:#ffc3ac}
.setting-invalid .value-input{border-color:#e89a80;outline-color:#e89a80}
.conditions .field-error{color:#9d3e23}
.conditions .setting-invalid .value-input{border-color:#b7492b}
.settings-tabs .tab-invalid{color:#ffc3ac}

/* Results: shared chart axes, direct comparisons, measured playback. */
.playback-readings{display:flex;align-items:center;gap:14px}
.playback-block select{width:98px}
#achieved-speed{font:12px var(--mono);color:#526653;min-width:113px;white-space:nowrap}
.temperature-comparison{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin:0 0 16px;padding:0 2px}
.temperature-comparison output{font-size:16px;font-weight:500;color:#314b3b}
.temperature-comparison>span{font-size:11px;color:#687563;white-space:nowrap}
.comparison .chart-legend{gap:24px;margin-top:18px;margin-bottom:20px;align-items:center}
.chart-legend>span{font-size:13px;color:#465d4b}
.chart-legend .chart-unit{margin-left:auto}
.chart-controls{display:flex;gap:20px;padding:13px 0;border-top:1px solid #dce1d3;border-bottom:1px solid #dce1d3}
.chart-controls label{display:flex;flex:1;flex-direction:column;gap:7px;min-width:0;font-size:11px;color:#63715d}
.chart-controls select{width:100%;font:13px 'DM Sans',sans-serif;color:#304d3b;background:#fffdf8;border:1px solid #aebaa6;border-radius:4px;padding:7px 9px;cursor:pointer}
.chart-view-note{font-size:11px;line-height:1.5;color:#687563;margin:11px 0 12px}
.comparison #chart{height:240px}
.comparison-foot{display:block;margin-top:13px}
.comparison-foot p{font-size:13px;line-height:1.5;color:#3a5944;margin:0}
.chart-range{font:10px/1.5 var(--mono);color:#65755e;margin:8px 0 0}

/* Local setups: one compact row, with naming shown only when requested. */
.setup-library{padding:16px 0 14px;border-bottom:1px solid #d7dccf}
.setup-actions{display:flex;align-items:center;gap:12px}
.setup-actions>label{font-size:12px;font-weight:600;color:#50624d}
.setup-actions select{min-width:220px;width:280px;max-width:30%;font:13px 'DM Sans',sans-serif;color:#304d3b;background:#fffdf8;border:1px solid #aebaa6;border-radius:4px;padding:8px 9px}
.setup-actions .text-button{font-size:12px;white-space:nowrap}
.setup-actions .copy-button{white-space:nowrap}
#undo-setup{margin-left:auto}
.setup-notes{display:flex;justify-content:space-between;gap:16px;margin-top:10px;font-size:10px;color:#6c7964;line-height:1.5}
#storage-status.storage-error{color:#9d3e23;font-weight:500}
.preset-status{font-size:12px;line-height:1.5;margin:10px 0 0;color:#3a5944}
.preset-status:empty{display:none}
.setup-preview{margin:12px 0 0;padding:10px 12px;border-left:2px solid #9baa8c;background:#edf0e7;font-size:12px;line-height:1.6;color:#43593d}
.setup-preview strong{display:block;margin-bottom:2px;font-size:11px;font-weight:600;color:#607056}
.save-setup-form{display:flex;align-items:center;flex-wrap:wrap;gap:12px;padding:14px 0 4px}
.save-setup-form[hidden]{display:none}
.save-setup-form label{font-size:12px;color:#50624d}
.save-setup-form input{width:280px;border:1px solid #9aaa8e;border-radius:4px;background:#fffdf8;padding:8px 10px;font:13px 'DM Sans',sans-serif;color:#304d3b}
.save-setup-form input[aria-invalid=true]{border-color:#b7492b}
.save-setup-form .apply-button{padding:9px 16px;font-size:12px}
#setup-name-error{flex-basis:100%;margin:0;color:#9d3e23;font-size:12px}
#setup-name-error:empty{display:none}
.setup-library button:disabled{opacity:.4;cursor:default}

/* Desktop workspace: frequent actions stay close to the simulated rooms. */
.app-header{height:48px}
.app-header h1{font-size:18px}
.toolbar{display:block;min-height:0;padding:10px 16px;margin-bottom:4px;top:8px;z-index:10}
.transport-row{display:flex;align-items:center;gap:18px}
.transport{padding:0;gap:14px}
.play-button{min-width:92px;padding:10px 15px}
.time-block{padding:0 18px;gap:3px}
.speed-block{padding-left:18px;gap:3px}
.control-label{font-size:9px;letter-spacing:.7px}
.playback-readings{gap:8px}
.field-block{margin-left:auto}
.flow-control{margin-left:12px;white-space:nowrap}
#achieved-speed{min-width:100px;font-size:11px}
.toolbar .pending-bar{position:static;transform:none;width:100%;max-width:none;border:0;border-top:1px solid #c7d9cb;border-radius:0;background:transparent;box-shadow:none;margin:10px 0 0;padding:10px 0 0;gap:16px}
.pending-message{flex-direction:row;align-items:center;gap:14px;flex-wrap:wrap}
.pending-message strong{font-size:13px}
.pending-message span{font-size:11px}
.pending-actions .copy-button,.pending-actions .apply-button{padding:7px 12px;font-size:12px}
.has-pending-settings{padding-bottom:0}
.setup-library{padding:10px 0 8px;border:0}
.setup-actions{gap:10px}
.setup-actions select{width:280px;max-width:32%;padding:7px 9px}
.setup-actions .apply-button{padding:8px 14px;font-size:12px}
.setup-state{font:10px var(--mono);color:#8a613d;white-space:nowrap;min-width:44px}
.setup-state[data-state=applied]{color:#53745d}
.setup-actions #undo-setup{margin-left:auto;font-size:12px;padding:6px}
.setup-menu{position:relative;margin-left:4px}
.setup-menu>summary{cursor:pointer;list-style:none;font-size:12px;padding:8px;color:#5c6b5b;white-space:nowrap;border-radius:4px}
.setup-menu>summary::-webkit-details-marker{display:none}
.setup-menu>summary:hover,.setup-menu[open]>summary{background:#e9ede2}
.setup-menu>summary span{margin-left:6px}
.setup-menu-content{position:absolute;right:0;top:38px;width:370px;z-index:8;padding:18px;background:#fffefa;border:1px solid #cdd5c4;border-radius:7px;box-shadow:0 12px 36px #20382a25}
.setup-menu-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.setup-menu-actions .copy-button{font-size:12px;padding:8px}
.setup-menu-actions .text-button{padding:5px;text-align:left}
.setup-menu-content p{font-size:11px;color:#6a7864;line-height:1.5;margin:12px 0 0}
.setup-menu-content .save-setup-form input{width:100%}
.setup-menu-content .save-setup-form{gap:10px}
.setup-menu-content #setup-name-error{color:#a94325}
.setup-preview{margin:8px 0 0;padding:7px 12px;font-size:12px}
.preset-status{font-size:11px;margin:7px 0 0}
#storage-status:not(.storage-error){display:none}
#storage-status.storage-error{font-size:12px;margin:8px 0}
.conditions{padding:0;margin:0;border:0;border-top:1px solid #d7dccf;border-bottom:1px solid #d7dccf;border-radius:0;background:transparent}
.conditions>summary{display:flex;align-items:center;gap:15px;list-style:none;cursor:pointer;padding:11px 2px}
.conditions>summary::-webkit-details-marker{display:none}
.conditions>summary:hover{background:#edf0e7}
.conditions>summary strong{font-size:12px;font-weight:600}
#conditions-summary{font-size:12px;color:#5c6c57}
.conditions-edit{margin-left:auto;white-space:nowrap;font-size:11px;color:#5c6c57}
.conditions[open] .conditions-edit span{display:inline-block;transform:rotate(180deg)}
.conditions .settings-grid{grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:22px;padding:2px 14px 0}
.conditions .range-group{margin-top:8px}
.conditions .direction-caption{font-size:10px}
.conditions .conditions-note{font-size:11px;margin:10px 14px 14px}
.conditions .pending-badge{margin:0;font-size:10px;padding:2px 5px}
.comparison-summary{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 0}
.comparison-summary .temperature-comparison{order:-1;margin:0;padding:0}
.temperature-comparison output{font-size:14px}
.comparison-tools{margin:0;padding:0;border:0;gap:16px;min-height:18px}
.comparison-tools p{font-size:11px;margin:0;color:#6a7863}
.comparison-tools .copy-controls{gap:0}
.comparison-tools button{font-size:11px}
.sim-grid{align-items:stretch;gap:16px}
.sim-panel{display:flex;flex-direction:column}
.room-heading{min-height:70px;padding:12px 18px 8px}
.room-heading h2{font-size:17px}
.room-temperature .stat-label{font-size:11px}
.room-temperature .temperature{font-size:32px}
.room-heading .pending-badge{font-size:10px;padding:2px 5px;margin-top:4px}
.room-metrics{grid-template-columns:1fr .85fr 1.2fr;gap:12px;margin:0 18px;padding:5px 0 12px}
.room-metrics>div{flex-direction:row;align-items:center;gap:8px;white-space:nowrap}
.room-metrics>div:last-child{justify-content:flex-end}
.room-metrics span{font-size:10px}
.room-metrics output{font-size:12px}
.room-settings{flex:1}
.settings-tabs{padding:0 10px}
.settings-tabs button{padding:10px 8px;font-size:12px}
.settings-panel{min-height:170px;padding:13px 18px}
.window-summary>span:first-child{display:none}
.window-summary{justify-content:flex-start}
.opening-tag{font-size:10px;padding:3px 6px;margin:0}
.settings-panel .opening-controls{margin-top:10px;gap:20px}
.settings-panel .range-ends{font-size:9px}
.settings-hint{margin-top:12px;font-size:11px;line-height:1.4}
.settings-panel .fan-controls{margin:0;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 92px;gap:10px 16px}
.fan-control-label{font-size:11px;margin-bottom:5px}
.fan-direction-buttons{grid-template-columns:repeat(3,28px);grid-template-rows:repeat(3,28px);gap:4px}
.fan-direction-buttons button{font-size:20px;min-height:28px}
.fan-position-buttons button{min-height:30px;font-size:12px}
.settings-panel .fan-controls input[type=range]{margin:12px 0 8px}
.fan-controls .range-title{min-height:28px;flex-wrap:nowrap}
.fan-controls .range-title label{flex-basis:auto;font-size:11px}
.fan-drag-hint{font-size:10px;margin-top:8px}
.fan-off .fan-controls{grid-template-columns:1fr}
.fan-off .fan-position-control{grid-column:1}
.fan-off .fan-controls>div:not(.fan-position-control),.fan-off .fan-drag-hint{display:none}
.radiator-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:5px}
.radiator-buttons button{border:1px solid #6b8172;border-radius:4px;background:#192c23;color:#dde7d8;font-size:12px;min-height:36px}
.radiator-buttons button:hover{background:#3b5141}
.radiator-buttons button[aria-pressed=true]{background:#edc7a4;border-color:#edc7a4;color:#24382b;font-weight:600}
.radiator-temperature-link{border:0;border-bottom:1px dotted #7d9987;background:none;color:#c4d8c6;font-size:12px;padding:4px 0;margin-top:18px}
.below-sims{padding:10px 0 14px}
.analysis-grid{display:block}
.comparison{display:grid;grid-template-columns:1fr auto;column-gap:24px;padding:18px 22px}
.comparison>.section-heading{grid-column:1;align-items:center}
.comparison .chart-controls{grid-column:2;grid-row:1/3;border:0;padding:0;gap:14px;width:350px}
.comparison .chart-controls label{font-size:10px}
.comparison .chart-legend{grid-column:1;grid-row:2;margin:10px 0 0;gap:20px}
.comparison .chart-unit{margin-left:0}
.comparison #chart{grid-column:1/-1;height:200px}
.comparison-foot{margin-top:0;padding-top:8px}
.comparison-foot p{font-size:12px}
.chart-range{text-align:right;margin:8px 0 0}

/* Direct manipulation: the scene is the room's primary setup control. */
.sim-grid{align-items:start}
.room-settings{flex:none}
.room-editor-idle{display:flex;justify-content:space-between;gap:12px;padding:13px 18px;color:#c2cec0;font-size:11px;line-height:1.5}
.edit-key{color:#8fa99d;font:10px/1.6 var(--mono);white-space:nowrap}
.room-editor-heading{display:flex;align-items:center;gap:10px;padding:10px 18px;border-bottom:1px solid #ffffff13}
.room-editor-heading strong{font-size:13px;font-weight:550;color:#f5f3df}
.room-editor-heading>span{font:10px var(--mono);color:#9dccca}
.room-editor-heading>span.has-error{color:#ffc3ac}
.room-editor-heading button{margin-left:auto;padding:5px 0 5px 14px;border:0;background:none;color:#c8d3c2;font-size:11px}
.room-editor-heading button span{margin-left:8px;font-size:17px}
.room-settings .settings-panel{min-height:0;padding:12px 18px 14px}
.room-settings .window-summary{display:none}
.room-settings .window-openings{display:block;margin:0}
.opening-shortcuts{display:flex;gap:6px;margin-top:10px}
.opening-shortcuts button{border:1px solid #65796a;border-radius:4px;color:#d9e3d3;background:#ffffff04;padding:5px 11px;font-size:11px}
.opening-shortcuts button:hover{background:#ffffff12;border-color:#b2c8b4}
.room-settings .settings-hint{font-size:10px;color:#9fb3a4;margin:10px 0 0}
.room-edit-overlay{position:absolute;inset:0;pointer-events:none}
.room-edit-overlay button{pointer-events:auto;user-select:none}
.window-track{position:absolute;width:22px;transform:translateX(-50%);padding:0;border:1px solid #ecf4dd80;border-radius:4px;background:#e4f2df08;cursor:pointer}
.window-track:hover{border-color:#fff5d8;background:#e4f2df24}
.window-draft-gap{position:absolute;width:13px;transform:translateX(-50%);border:1px solid transparent;pointer-events:none}
.is-pending .window-draft-gap{border:2px dashed #ade2df;background:#73c4c425}
.window-edit-label{position:absolute;transform:translateY(-50%);border:1px solid #c8d2b975;border-radius:4px;background:#1b3029eb;color:#f0f1dd;white-space:nowrap;font:10px var(--mono);padding:7px 8px;cursor:pointer}
.window-left .window-edit-label{transform:translate(-100%,-50%)}
.window-drag-handle{position:absolute;transform:translate(-50%,-50%);width:26px;height:22px;border:1px solid #f2eed4;border-radius:5px;background:#22392feb;color:#fff5da;font:17px/1 var(--mono);cursor:ns-resize;touch-action:none;z-index:3;padding:0}
.window-drag-handle:hover,.window-drag-handle:focus-visible{box-shadow:0 0 0 3px #f0e8c834}
.is-selected .window-track{border-color:#f8dfb2;box-shadow:0 0 0 2px #f8dfb235}
.is-selected .window-edit-label{background:#e9c7a0;color:#233c2e;border-color:#e9c7a0}
.is-pending .window-edit-label,.is-pending .window-drag-handle{border:1px dashed #b5e9e4;color:#cef4eb;background:#1e4640f5}
.is-invalid .window-edit-label{border-color:#ffbba2;color:#ffccb9}
.radiator-target{position:absolute;transform:translate(-50%,-50%);width:22px;height:44px;padding:0;border:1px dashed #f2e3c7b0;border-radius:3px;color:#f2e6cc;background:#213b2d4d;cursor:pointer}
.radiator-target>span:first-child{font-size:21px}
.radiator-target.is-active{border-style:solid;background:#a25f4599;color:#ffe8bc}
.radiator-target:hover,.radiator-target.is-selected{outline:2px solid #efd2a27a;outline-offset:3px}
.radiator-target.is-pending{border:2px dashed #b5e9e4;color:#cef4eb;background:#1e4640b8}
.radiator-target-label{position:absolute;top:50%;transform:translateY(-50%);white-space:nowrap;font:10px var(--mono);padding:6px;border-radius:4px;background:#1b3029e8;color:#e5e9d6}
.radiator-target-left .radiator-target-label{right:calc(100% + 15px)}
.radiator-target-right .radiator-target-label{left:calc(100% + 15px)}
.add-fan{position:absolute;transform:translate(-50%,-50%);border:1px dashed #efe8d1b3;border-radius:20px;padding:7px 12px;background:#1b3029bb;color:#f4edd6;font-size:11px}
.add-fan:hover{background:#1b3029f5;border-style:solid}
.fan-drag-handle{cursor:move}
.fan-edit-overlay.is-selected .fan-drag-handle{box-shadow:0 0 0 4px #fff3d640}
.fan-edit-overlay.is-invalid .fan-drag-handle{border-color:#ffbba2;color:#ffccb9}
.fan-edit-overlay.is-dragging .fan-drag-handle{cursor:grabbing}
.fan-handle-label{font-size:9px;top:calc(100% + 7px);left:50%;transform:translateX(-50%)}
[data-label-side=left] .fan-handle-label{left:50%;right:auto}
.drag-start-clean .pending-bar{display:none}
.room-heading>div:first-child{min-height:46px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.live-model-note{font-size:12px;line-height:1.7;color:#596a5a;max-width:980px;margin:16px 0}

/* One-room workspace keeps the same run and direct controls, without A/B chrome. */
.room-mode{display:inline-flex;flex-shrink:0;gap:3px;padding:3px;border:1px solid #b8c3b1;border-radius:6px;background:#e8ece2;margin-right:8px}
.room-mode button{border:0;border-radius:4px;background:transparent;color:#5b6d55;padding:7px 11px;font:500 12px 'DM Sans',sans-serif;white-space:nowrap}
.room-mode button:hover{background:#f5f5ed}
.room-mode button[aria-pressed=true]{background:#fffefa;color:#294735;box-shadow:0 1px 4px #223a2318}
.single-room .sim-grid{grid-template-columns:minmax(0,1fr);max-width:1240px;margin:14px auto 0}
.single-room .simulation-wrap canvas{aspect-ratio:2.35;max-height:560px}
.single-room .room-settings>div{max-width:900px;margin-inline:auto}
.single-room .room-metrics{padding:8px 0 16px}
.single-room .room-heading{padding:14px 22px 8px}
.single-room .comparison-foot{display:none}
.single-room .chart-range{grid-column:1/-1}
.single-room #setup-preview{display:none}

/* Each wall has an independent heater and a fixed, visibly hot upper range. */
.settings-panel .radiator-pair{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.radiator-card-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:17px}
.radiator-card-heading strong{font-size:12px;font-weight:500;color:#e8eddd}
.radiator-toggle{display:flex;gap:3px;padding:2px;border:1px solid #6b8172;border-radius:5px}
.radiator-toggle button{border:0;border-radius:3px;background:transparent;color:#bdcbbb;font-size:11px;padding:5px 9px}
.radiator-toggle button[aria-pressed=true]{background:#edc7a4;color:#24382b}
.radiator-card .range-title{display:flex;align-items:center;justify-content:space-between}
.radiator-card .range-title label{margin:0;font:11px 'DM Sans',sans-serif}
.radiator-card input.radiator-temperature-slider{background:linear-gradient(to right,#bc9476 0 50%,#bd4e45 50% 100%);margin:17px 0 10px}
.radiator-card .radiator-range{font:9px var(--mono);color:#b7c5b1;position:relative}
.radiator-range span:nth-child(2){position:absolute;left:50%;transform:translateX(-50%);color:#ffb2a1}
.radiator-range span:last-child{color:#ffb2a1}
.radiator-off .range-title,.radiator-off input,.radiator-off .range-ends{opacity:.4}
.color-scale{background:linear-gradient(90deg,#233a72 0%,#477bba 9.524%,#72bcbf 14.286%,#bdcfbb 21.905%,#eac488 28.571%,#eaa373 34.286%,#c75a46 42.857%,#9e3a33 57.143%,#66223f 71.429%,#ec6ea1 100%)}

/* Separate starting conditions from controls that affect the current run. */
.conditions-groups{display:grid;grid-template-columns:minmax(310px,.85fr) minmax(580px,1.65fr);gap:28px;padding:8px 14px 0}
.condition-group{min-width:0}
.condition-group-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.condition-group-heading h3{font-size:13px;font-weight:600;margin:0}
.behavior-badge{font:10px var(--mono);white-space:nowrap;border-radius:4px;padding:5px 7px}
.restart-badge{color:#895120;background:#f3e5d3}
.live-badge{color:#315f4b;background:#e2eddf}
.live-badge:before{content:'';display:inline-block;width:5px;height:5px;border-radius:50%;background:#477954;margin-right:6px;vertical-align:1px}
.condition-explanation{font-size:11px;color:#657160;line-height:1.5;margin:8px 0 16px}
.initial-inputs{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.wind-conditions{border-left:1px solid #d6ddcf;padding-left:28px}
.wind-inputs{display:grid;grid-template-columns:minmax(180px,.8fr) minmax(320px,1.3fr);gap:28px;align-items:start}
.conditions-groups .range-group{margin:0;min-width:0}
.temperature-setting-status{font-size:11px;line-height:1.55;color:#64715d;margin:12px 0 0}
.wind-direction-label{display:block;font-size:13px;line-height:28px}
.wind-speed-note{font-size:11px;line-height:1.5;color:#657160;margin:12px 0 0}
#wind-speed-setting.wind-ignored input[type=range]{opacity:.5}
#wind-speed-setting.wind-ignored .wind-speed-note{color:#80613e}
.wind-effect{display:grid;grid-template-columns:105px 1fr;gap:15px;margin:16px 0 0;padding:13px 14px;border:1px solid #d7ded0;border-radius:5px;background:#edf1e7;color:#405b49;font-size:11px;line-height:1.5}
.wind-effect-scope{font-size:10px;color:#64715d;padding-top:2px}
.wind-effect strong{font-size:13px;font-weight:600}
.wind-effect p{margin:4px 0 0}
.wind-effect.wind-ignored{background:#f0ece2;border-color:#dfd4bf;color:#6c5334}
.wind-pending-note{font-size:11px;line-height:1.5;color:#80613e;margin:8px 0 0}
.wind-explanation{margin-top:10px;font-size:11px;line-height:1.6;color:#64715d}
.wind-explanation summary{cursor:pointer;width:fit-content}
.wind-explanation p{margin:9px 0 0;max-width:650px}
.temperature-setting-status.requires-restart{color:#895120;font-weight:500}
.initial-conditions .setting-pending{border-color:#c59664}
.wind-directions{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin:10px 0 0}
.wind-directions button{border:1px solid #c3cdbb;border-radius:4px;padding:8px 4px;font-size:12px;white-space:nowrap;background:transparent;color:#50654d}
.wind-directions button span{display:block;font:17px/1.2 var(--mono);margin-bottom:3px}
.wind-directions button small{display:block;font-size:10px;margin-top:3px;opacity:.85}
.wind-directions button:hover{background:#e6eddf}
.wind-directions button[aria-pressed=true]{color:#f7f7ec;background:#385e49;border-color:#385e49}
.wind-directions button[data-direction="90"][aria-pressed=true]{color:#634d31;background:#e7dbc5;border-color:#b8a17c}
.wind-angle{font-size:11px;color:#52694f;margin-top:10px}
.wind-angle summary{cursor:pointer}
#wind-angle-summary{float:right;font-family:var(--mono);font-size:10px}
.conditions-groups .wind-angle .range-group{margin-top:13px}
.wind-angle .range-ends{font-family:inherit;font-size:10px}
.wind-angle p{font-size:11px;line-height:1.5;margin:10px 0 0;color:#657160}
.airflow-legend{display:flex;align-items:center;gap:10px;font-size:11px;color:#405b49;white-space:nowrap}
.airflow-legend svg{display:block;flex-shrink:0;overflow:visible}
.airflow-legend path{fill:none;stroke:#405b49;stroke-width:.9}
.airflow-legend output{font:11px var(--mono)}
.airflow-legend-hint{font-size:10px;color:#657160}
.below-sims{column-gap:28px;row-gap:14px;padding:16px 0 20px}
.toolbar .pending-message{display:flex;flex-direction:column;align-items:flex-start;gap:5px}
.restart-changes{display:flex;gap:6px 18px;flex-wrap:wrap;list-style:none;margin:0;padding:0;font:12px/1.5 var(--mono);color:#7c4a24}
.toolbar .restart-pending{border-top-color:#decbb1}
.restart-pending .pending-message strong{color:#895120}
.pending-message #pending-detail{font-size:11px;line-height:1.5}
.conditions .pending-badge{color:#895120;border-color:#b38a56;white-space:nowrap}

/* Each window keeps its own clear-slot edge; icons show glass and the open gap. */
.window-openings [data-window-side]{display:grid;grid-template-columns:auto minmax(0,1fr);gap:20px;align-items:center}
.window-edge-controls{display:block;margin:0}
.window-edge-caption{display:block;font-size:11px;color:#b8c9b8;margin-bottom:7px}
.window-edge-options{display:flex;gap:4px}
.window-edge-options button{display:flex;align-items:center;gap:7px;border:1px solid #65796a;border-radius:4px;background:transparent;color:#b8c9b8;padding:7px 10px;font-size:12px}
.window-edge-options button:hover{background:#ffffff0c}
.window-edge-options button[aria-pressed=true],.opening-shortcuts button[aria-pressed=true]{border-color:#a8c0ad;background:#365044;color:#f3f3df}
.window-edge-icon{display:inline-block;width:12px;height:18px;border:1px solid currentColor;border-radius:1px;position:relative;color:#c1d2c1}
.window-edge-icon:before{content:'';position:absolute;left:2px;right:2px;height:8px;background:currentColor;opacity:.6}
.edge-bottom:before{top:2px}.edge-top:before{bottom:2px}
.window-size-control{min-width:0}
.window-edit-label{white-space:pre;line-height:1.45;text-align:center}
.opening-shortcuts{flex-wrap:wrap}

.edge-tilt:before{bottom:1px;height:14px;width:2px;left:1px;transform-origin:bottom center;transform:rotate(20deg);opacity:1}
.window-edge-options button{padding:7px 8px}

[data-window-side=right] .edge-tilt:before{left:auto;right:1px;transform:rotate(-20deg)}

/* Experimental compute backend; kept out of the physical setup controls. */
.header-options{display:flex;align-items:center;gap:22px}.engine-menu{position:relative;font-size:12px;color:#596558}.engine-menu summary{cursor:pointer}.engine-menu-body{position:absolute;right:0;top:28px;width:300px;padding:18px;background:#fffdf7;border:1px solid #d7d9cf;box-shadow:0 8px 30px #24362a18;border-radius:8px;z-index:20}.engine-menu-body label{display:block;margin-bottom:8px;font-weight:600}.engine-menu-body select{width:100%;padding:8px}.engine-menu-body p{line-height:1.6;margin:12px 0}.engine-menu-body a{color:#88553a}.engine-notice{padding:12px 16px;border:1px solid #cfb89d;border-radius:6px;background:#f5eadb;font-size:12px;line-height:1.5}

/* Tracer tools stay outside the physical setup editors. */
.transport-row{flex-wrap:wrap;row-gap:10px}
.transport-row>*{flex-shrink:0}
.tracer-actions{display:flex;gap:5px;align-items:center;margin-left:16px;white-space:nowrap}
.tracer-actions button{border:1px solid #d5d8cf;background:transparent;padding:7px 10px;border-radius:5px;font-size:12px}
.tracer-actions button[aria-pressed=true]{background:#eee4f6;border-color:#a27aba;color:#57336b}
.tracer-actions #tracer-clear{border-color:transparent;color:var(--muted);font-size:11px;padding:7px 4px}
.tracer-help{margin:7px 0 0;padding:9px 2px 0;border-top:1px solid var(--line);font-size:11px;line-height:1.5;color:#665474;width:100%}
.tracer-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#bb86e4;margin-right:6px}
.tracer-mode .simulation-wrap canvas{cursor:crosshair;touch-action:none}
.tracer-mode .room-edit-overlay,.tracer-mode .fan-edit-overlay{pointer-events:none;opacity:.35}
.tracer-mode .room-edit-overlay *,.tracer-mode .fan-edit-overlay *{pointer-events:none!important}
.tracer-scale{background:linear-gradient(90deg,#19262e 0%,#544b6d 10%,#6d5a87 20%,#7f669a 30%,#8f6fab 40%,#9d78ba 50%,#aa80c7 60%,#b587d4 70%,#c08edf 80%,#ca94ea 90%,#d49af4 100%)!important}

/* Local temperature control and model heat, beside each room. */
.heating-meter{display:flex;align-items:center;gap:16px;padding:11px 15px;border-top:1px solid var(--border,#dcded2);background:#edf0e7;font-size:11px;flex-wrap:wrap}
.heating-meter>div{display:flex;flex-direction:column;gap:3px}.heating-meter output{font-size:16px;font-variant-numeric:tabular-nums;color:#263e31;font-weight:650}.heating-meter>div>span,.heat-depth{color:#64705f}.heat-depth{margin-left:auto;font-size:10px;max-width:78px}
.heating-edit{display:flex;gap:7px;align-items:center;padding:8px 9px;border:1px solid #c3cbbb;border-radius:7px;background:#f8f9f4;color:#314633;font:inherit;font-weight:650;cursor:pointer}.heating-edit:hover{background:white}.heat-status-dot{width:6px;height:6px;border-radius:50%;background:#8d998c}.is-heating .heat-status-dot{background:#bc6a3e}.heating-panel{padding-bottom:8px}.heating-panel>.configuration-controls{margin-bottom:16px}.thermostat-settings{gap:16px 24px}.thermostat-live-reading{display:flex;flex-direction:column;gap:4px;font-size:11px;color:#6a7564}.thermostat-live-reading output{font-size:25px;font-weight:600;color:#344b37;font-variant-numeric:tabular-nums}
.thermostat-marker{position:absolute;transform:translate(-50%,-50%);display:flex;align-items:center;gap:5px;white-space:nowrap;padding:5px 8px 5px 6px;border:1px solid #81957f;border-radius:20px;background:#f5f5e9e8;color:#344b37;font:11px ui-monospace,monospace;box-shadow:0 1px 5px #16291a30;pointer-events:auto;cursor:grab;touch-action:none;user-select:none}.thermostat-marker:active{cursor:grabbing}.thermostat-marker>span:first-child{font-size:19px;line-height:1}.thermostat-marker.is-heating>span:first-child{color:#b05e2e}.thermostat-marker.is-selected{outline:2px solid #ebeddd;outline-offset:2px}.thermostat-marker.is-pending{border-style:dashed}
.heating-panel .thermostat-live-reading{color:#aabca9}.heating-panel .thermostat-live-reading output{color:#f1f0dc}.heating-panel .segmented-control{display:flex;gap:4px}.heating-panel .segmented-control button{border:1px solid #607c68;background:#1d3025;color:#c0d1b9;border-radius:5px;padding:8px 14px;font-size:12px}.heating-panel .segmented-control button[aria-pressed=true]{background:#d6dfc8;color:#274533;border-color:#d6dfc8}

.thermostat-marker{transform:translate(-16px,-50%);z-index:2}.thermostat-marker.sensor-label-left{transform:translate(calc(-100% + 16px),-50%);flex-direction:row-reverse}
.radiator-target.is-active.heat-off{background:#64786d99;color:#e2e6d9}