:root{color-scheme:dark;--bg:#061e24;--mint:#80dfd1;--fg:#e4efed;--muted:#8aa8ab;--line:#25434a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;min-height:100vh}header{display:flex;align-items:center;justify-content:space-between;padding:28px 4vw 12px;border-bottom:1px solid #ffffff06}.brand{display:flex;gap:14px;align-items:flex-start;letter-spacing:5px;font-size:25px;font-weight:600;text-decoration:none;color:var(--fg)}.brand span{font-size:22px;font-weight:300;letter-spacing:3px}.brand small{display:block;font-size:9px;letter-spacing:5px;margin-top:5px;color:var(--mint)}.header-right{display:flex;align-items:center;gap:22px}.concept,.muted,.hint{color:var(--muted)}.concept{font-size:12px}button,select{font:inherit;color:inherit;background:#12333a;border:1px solid var(--line);border-radius:14px;padding:12px 18px;cursor:pointer}button:hover{border-color:var(--mint);color:var(--mint)}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:4px}header button{background:transparent;font-size:23px;border:0;padding:4px 10px}main{max-width:1600px;margin:auto;padding:12px 4vw 24px}.title{display:flex;justify-content:space-between;align-items:center}.eyebrow{font-size:10px;letter-spacing:2.8px;color:var(--mint);margin:0 0 9px}h1{font-size:28px;font-weight:400;margin:0}h2{font-size:24px;font-weight:400;margin:0}.status{font-size:14px;padding:10px 15px;border:1px solid #80dfd12a;border-radius:24px;color:var(--mint);display:flex;gap:9px;align-items:center}.status i{width:7px;height:7px;border-radius:50%;background:currentColor;box-shadow:0 0 15px currentColor}.scene-scroll{overflow-x:auto;scrollbar-width:thin;scrollbar-color:#396269 transparent;touch-action:pan-x pan-y}.scene{position:relative;width:100%;aspect-ratio:1400/650;min-width:850px;isolation:isolate}canvas{display:block;width:100%;height:100%}#hotspots{position:absolute;inset:0;pointer-events:none}.hotspot{position:absolute;pointer-events:auto;background:transparent;border-color:transparent;padding:0;min-height:44px}.hotspot:hover{background:#80dfd108;border-color:#80dfd150}.hotspot span{position:absolute;left:50%;bottom:3%;transform:translateX(-50%);white-space:nowrap;color:#bed2d4;font-size:14px;text-shadow:0 1px 5px #000}.metrics{display:flex;gap:0;border-top:1px solid var(--line);padding:22px 0;overflow-x:auto}.metric{flex:1;min-width:125px;padding:0 24px;border-right:1px solid var(--line)}.metric:first-child{padding-left:0}.metric:last-child{border-right:0}.metric small{display:block;color:var(--muted);font-size:12px;margin-bottom:7px}.metric strong{font-size:26px;font-weight:300}.metric b{font-size:12px;color:var(--mint);font-weight:400}.actions{display:flex;gap:12px;flex-wrap:wrap}.actions button{background:transparent;font-size:14px;min-height:46px}.actions .selected{background:var(--mint);color:var(--bg);border-color:var(--mint)}.hint{font-size:12px;margin-top:20px}dialog{background:#0b282f;color:var(--fg);border:1px solid #35545a;border-radius:24px;width:min(530px,94vw);padding:28px;max-height:88vh;box-shadow:0 30px 100px #0009}dialog[open]{animation:appear .2s ease-out}dialog::backdrop{background:#001015b8;backdrop-filter:blur(7px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}.dialog-head button{font-size:25px;padding:1px 10px;background:transparent;border:0}.small{font-size:12px;line-height:1.5}.presets{display:flex;gap:7px;margin:20px 0}.presets button{flex:1;font-size:12px;padding:10px 6px}.option,.form-row{display:flex;justify-content:space-between;align-items:center;gap:15px;min-height:49px;border-bottom:1px solid #ffffff0c;font-size:14px}.option input{accent-color:var(--mint);width:20px;height:20px}.option:has(input:disabled){opacity:.4}.form-row{margin-top:16px;align-items:flex-start;flex-direction:column;border:0}select{width:100%;font-size:14px}.primary{width:100%;background:var(--mint);color:var(--bg);margin-top:10px}.reading{font-size:52px;font-weight:200;color:var(--mint);margin:18px 0}.details-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.details-grid>div{padding:16px;background:#ffffff04;border-radius:12px}.details-grid small{display:block;color:var(--muted);margin-bottom:9px}.detail-control{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:22px 0}.detail-control output{font-size:26px}input[type=range]{width:100%;accent-color:var(--mint)}.dwin{width:800px;height:480px;min-height:480px;margin:24px auto;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--bg)}.dwin header{padding:12px 22px;height:56px}.dwin .brand{font-size:20px}.dwin .brand span{font-size:17px}.dwin .brand small,.dwin .concept,.dwin .eyebrow,.dwin .hint{display:none}.dwin main{padding:8px 20px}.dwin h1{font-size:20px}.dwin .status{padding:5px 12px;font-size:12px}.dwin .scene{min-width:0;aspect-ratio:1400/550;height:285px}.dwin .hotspot span{font-size:12px}.dwin .metrics{padding:7px 0}.dwin .metric{min-width:0;padding:0 12px}.dwin .metric strong{font-size:19px}.dwin .metric small{font-size:10px;margin-bottom:2px}.dwin .actions{margin-top:5px;gap:7px}.dwin .actions button{font-size:12px;min-height:36px;padding:7px 12px}.dwin .title{height:31px}.dwin dialog{position:fixed}.dwin .metric b{display:none}@keyframes appear{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}@media(max-width:650px){header{padding:20px 20px 10px}.brand{font-size:21px}.brand span{font-size:19px}.concept{display:none}main{padding:10px 20px 24px}.eyebrow{font-size:8px}h1{font-size:24px}.scene{min-width:1000px}.metric{padding:0 15px;min-width:125px}.metric strong{font-size:23px}.actions{display:grid;grid-template-columns:1fr 1fr}.hint{line-height:1.6}.status{font-size:12px}dialog{padding:22px}}@media(prefers-reduced-motion:reduce){dialog[open]{animation:none}}
.quality-2{zoom:2}.quality-2 body.dwin{margin:0}.quality-2 .preview-tools{display:none}

/* Dedicated touch detail layout inside the simulated 800×480 display. */
.dwin dialog{top:42px;bottom:auto;margin:0 auto;max-height:438px;width:730px;padding:18px 22px;border-radius:18px}
.dwin .dialog-head{margin-bottom:10px}.dwin .dialog-head button{min-width:48px;min-height:44px}
.dwin #detail-content{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;align-items:center}
.dwin .reading{margin:4px 0;font-size:44px}.dwin .details-grid>div{padding:10px}
.dwin .detail-control{margin:4px 0}.dwin #detail-content>.small{grid-column:1/-1;margin:0}
.dwin #detail-content .form-row{margin:0}.dwin .primary{min-height:44px;margin:0}
.dwin #detail-content input[type=range]{min-height:40px}.dwin #config .option{min-height:35px}

/* Reference composition: centred title, weather/tools and an icon-led bottom strip. */
header{display:grid;grid-template-columns:1fr auto 1fr;max-width:1600px;margin:auto;border:0;padding-bottom:8px;gap:20px}
.header-title{font-size:30px;font-weight:300;letter-spacing:1px;text-align:center;position:relative;align-self:center}
.header-title:after{content:"";display:block;width:34px;height:1px;background:#b8d9d5;margin:15px auto 0}
.header-right{justify-self:end}.weather{display:flex;align-items:center;gap:12px;color:var(--mint);font-size:19px}.weather .line-icon{width:33px;height:33px}
.line-icon{width:34px;height:38px;flex-shrink:0;color:var(--mint)}header button{border-left:1px solid var(--line);border-radius:0;padding-left:20px}
.hotspot span{bottom:0;font-size:15px}.dashboard-bar{display:flex;align-items:center;border-top:1px solid var(--line);padding:24px 0;gap:22px}
.metrics{border:0;padding:0;flex:1;overflow:visible}.metric{display:flex;align-items:center;gap:16px;padding:0 18px;min-width:0}.metric small{white-space:nowrap}.metric strong{font-size:25px;white-space:nowrap}.metric:first-child{padding-left:0}.metric b{font-size:11px}
.actions{flex-wrap:nowrap;gap:18px}.actions button{border:0;border-radius:0;padding:8px 3px;display:flex;align-items:center;gap:12px;color:#a3c3c7;background:none;white-space:nowrap}.actions .selected{background:none;color:var(--mint)}.actions .selected:after{content:"";width:6px;height:6px;background:var(--mint);border-radius:50%;box-shadow:0 0 8px #80dfd1}.actions .line-icon{width:30px;height:34px}
.preview-tools{display:flex;align-items:center;justify-content:flex-end;gap:12px}.preview-tools .status{font-size:11px;padding:5px 10px}.preview-tools #view{font-size:11px;padding:7px 10px;background:none}.hint{margin-top:8px;font-size:11px}
.dwin header{grid-template-columns:1fr auto 1fr;gap:10px}.dwin .header-title{font-size:20px}.dwin .header-title:after{margin-top:5px}.dwin .weather{font-size:14px;gap:6px}.dwin .weather .line-icon,.dwin header button .line-icon{width:24px;height:24px}
.dwin .dashboard-bar{padding:13px 0;gap:12px}.dwin .metric{gap:6px;padding:0 9px}.dwin .metric .line-icon{width:22px;height:27px}.dwin .metric strong{font-size:17px}.dwin .actions{gap:8px}.dwin .actions button{font-size:11px;gap:5px;padding:4px 0}.dwin .actions .line-icon{width:23px;height:27px}.dwin .scene{height:285px}.dwin .hotspot span{font-size:12px}.dwin .preview-tools{margin-top:0}.dwin .header-right{gap:8px}.dwin header button{padding-left:10px}
@media(min-width:651px) and (max-width:1100px){body:not(.dwin) .dashboard-bar{flex-wrap:wrap}body:not(.dwin) .metrics{flex-basis:100%}}
@media(max-width:650px){header{grid-template-columns:1fr auto;gap:12px;padding-bottom:5px}.header-title{grid-column:1/-1;grid-row:2;font-size:24px;margin-top:6px}.header-title:after{margin-top:9px}.header-right{gap:8px}.weather{font-size:15px}.weather .line-icon{width:27px}.dashboard-bar{display:block;padding:18px 0}.metrics{overflow-x:auto;padding-bottom:16px}.metric{min-width:155px;gap:10px}.metric .line-icon{width:27px}.metric strong{font-size:23px}.actions{display:flex;justify-content:space-between;gap:8px}.actions button{font-size:12px;gap:7px}.actions .line-icon{width:25px}}

/* Operating state belongs to the header, beside weather and settings. */
header .status{font-size:12px;padding:7px 12px;white-space:nowrap}.dwin header .status{font-size:10px;padding:5px 8px}
@media(max-width:650px){header .status{font-size:10px;padding:5px 7px}.header-right{gap:6px}.weather{gap:5px}.brand{gap:8px;letter-spacing:3px}.brand span{letter-spacing:2px}header button{padding-left:8px;padding-right:0}}

.fan-controls{margin:16px 0}.fan-controls label{display:flex;justify-content:space-between;gap:15px;margin-bottom:10px;color:var(--muted)}.fan-controls output{color:var(--mint)}.dwin .fan-controls{margin:0}.dwin .fan-controls label{font-size:13px;margin:0}

/* One continuous room behind the installation, header and lower controls. */
body{background-color:#101d21;background-image:linear-gradient(180deg,#04171c36 0%,transparent 30%,#03141828 72%,#03141878 100%),url('graphics/heat-room-reference.png');background-size:100% 100%;background-repeat:no-repeat}
.dashboard-bar{border-top-color:#a7c8c433;text-shadow:0 2px 5px #000}
.metric small,.hint{color:#b5c8c9}.metric{border-right-color:#a7c8c433}
.dwin{background-color:#101d21;background-image:linear-gradient(180deg,#04171c36,transparent 35%,#03141878),url('graphics/heat-room-reference.png');background-size:100% 100%}

body,.dwin{background-image:url('graphics/heat-room-reference.png')}

/* Fill wide Home displays as well as ordinary desktop windows. */
body:not(.dwin) header,body:not(.dwin) main{max-width:none}
@media(min-width:1600px){
 body:not(.dwin) .brand{font-size:clamp(25px,1.75vw,48px)}
 body:not(.dwin) .brand span{font-size:clamp(22px,1.5vw,42px)}
 body:not(.dwin) .header-title{font-size:clamp(30px,2vw,54px)}
 body:not(.dwin) .metric strong{font-size:clamp(25px,1.65vw,44px)}
 body:not(.dwin) .metric small,body:not(.dwin) .actions button{font-size:clamp(12px,.95vw,24px)}
 body:not(.dwin) .dashboard-bar{padding:2vw 0}
}

.schedule-editor,.event-history{grid-column:1/-1;min-width:0}
.schedule-editor fieldset{border:1px solid var(--line);border-radius:14px;margin:12px 0;padding:12px}.schedule-editor legend{color:var(--mint);padding:0 6px}
.schedule-days{display:flex;justify-content:space-between;gap:4px;margin:12px 0}.schedule-days label{cursor:pointer;text-align:center;flex:1}.schedule-days input{display:block;margin:0 auto 6px;accent-color:var(--mint);width:18px;height:18px}
.schedule-times{display:flex;gap:16px}.schedule-times label{display:flex;align-items:center;gap:8px;flex:1}.schedule-times input{min-width:0;width:100%;background:#061e24;color:var(--fg);border:1px solid var(--line);border-radius:8px;padding:8px;font:inherit}
#schedule-error{color:#ffad9c;font-size:13px}.event-history ol{list-style:none;padding:0}.event-history li{padding:12px 0;border-bottom:1px solid var(--line)}.event-history time{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.dwin .schedule-editor{display:grid;grid-template-columns:1fr 1fr;gap:10px}.dwin .schedule-editor>p,.dwin .schedule-editor>button{grid-column:1/-1}.dwin .schedule-editor fieldset{margin:0;font-size:13px}

#simulation-clock{font-size:11px;padding:7px 10px;background:#061e2499}#preview-date{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);padding:12px;width:100%}#clock-error{color:#ffad9c}

#simulation-demand{font-size:11px;padding:7px 10px;background:#061e2499}.preview-tools{flex-wrap:wrap}.event-history input[type=number]{font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);padding:8px;border-radius:8px;width:100%}#demand-error{color:#ffad9c}

#simulation-mixers{font-size:11px;padding:7px 10px;background:#061e2499}.mixer-reading{display:grid;gap:9px;border-bottom:1px solid var(--line);padding:16px 0}.mixer-reading span,.mixer-reading small{color:var(--muted)}.mixer-reading progress{width:100%;accent-color:var(--mint)}

#simulation-alarms{font-size:11px;padding:7px 10px;background:#061e2499}.alarm-card{display:grid;gap:8px;padding:14px;margin:12px 0;border:1px solid var(--line);border-radius:14px}.alarm-card.critical{border-color:#df8d79}.alarm-card.warning{border-color:#c6af75}.alarm-card>span,.alarm-card>small{color:var(--muted)}.alarm-actions{display:flex;flex-wrap:wrap;gap:8px}.alarm-actions button{font-size:12px;padding:9px 12px}.alarm-actions button:disabled{opacity:.4;cursor:default}

.user-settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.user-settings-grid label{display:block}.user-settings-grid input{display:block;width:90%;margin-top:8px;min-height:40px}.user-settings-nav{display:flex;align-items:center;gap:16px;margin-top:18px}
.dwin #detail-content>.user-settings-grid,.dwin #detail-content>.user-settings-nav,.dwin #detail-content>#user-error{grid-column:1/-1}
.user-settings-grid input{color:var(--fg);background:#163840;border:1px solid #3d6368;border-radius:10px;padding:8px 12px;font:inherit}
.user-settings-nav{display:grid;grid-template-columns:52px auto 52px minmax(120px,1fr)}
.user-settings-nav span{white-space:nowrap;text-align:center}.user-settings-nav .primary{margin:0}
.dwin .user-settings-grid{gap:12px 24px}.dwin .user-settings-grid label{font-size:15px}
.primary:hover{color:var(--bg);background:#9ceddf}