/* Heating experience only: existing packages and site styles are preserved. */
.ar-heating-tools{color:#eef5f7;background:radial-gradient(ellipse at 45% 25%,#102832,#081219 70%);font-family:inherit;line-height:normal;padding:32px 28px 44px}
.ar-heating-tools *,.ar-heating-tools *::before,.ar-heating-tools *::after{box-sizing:border-box}
.ar-heating-tools button,.ar-heating-tools input{font:inherit}
.ar-heating-tools button{cursor:pointer}
.ar-heating-tools h2,.ar-heating-tools h3{font-family:inherit;line-height:1.25}
.ar-heating-tools :focus-visible{outline:3px solid #73ecf7;outline-offset:4px}
.ar-heating-tools .aht-jumps{display:flex;flex-wrap:wrap;gap:15px 25px;max-width:1320px;margin:0 auto 22px;font-size:12px;line-height:1.6}
.ar-heating-tools .aht-jumps a{color:#9bdce6;text-underline-offset:4px}
.ar-heating-tools .aht-equipment-note{max-width:1320px;margin:0 auto;color:#adc5d0;font-size:12px;line-height:1.8}
@media(max-width:480px){.ar-heating-tools{padding:24px 12px}}
.ar-heating-tools .at-heating{max-width:1320px;margin:70px auto 30px;padding-top:48px;border-top:1px solid #29414c;color:#eef5f7;scroll-margin-top:24px}.at-heating *{box-sizing:border-box}.at-heating .at-eyebrow{color:#76dae2;font-size:10px;letter-spacing:.18em;text-transform:uppercase;margin:0 0 12px}.at-heading h2{font-size:clamp(29px,3vw,42px);letter-spacing:-.04em;font-weight:600;margin:0 0 12px}.at-heading>p:last-child{color:#b4c7d0;font-size:15px;line-height:1.7;max-width:640px;margin:0 0 26px}.at-modes{display:flex;gap:10px;margin-bottom:22px}.at-modes button{color:#dcebf1;background:#0e202b;border:1px solid #345362;border-radius:12px;text-align:left;padding:15px 22px;font:inherit;font-size:15px;cursor:pointer;min-width:210px}.at-modes button span{display:block;color:#afc5cf;font-size:11px;margin-top:5px}.at-modes button[aria-pressed=true]{border-color:#5fdae5;background:linear-gradient(125deg,#143944,#102531);box-shadow:inset 0 0 18px #43d9e510}.at-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px;align-items:start}.at-visual{background:#091820;border:1px solid #294653;border-radius:17px;overflow:hidden}.at-visual-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;font-size:12px;color:#cfdee5}.at-visual-bar label{font-size:11px;display:flex;gap:6px;align-items:center}.at-heating input{accent-color:#62dce8}.at-house{display:block;width:100%;height:auto;background:#07121a}.at-house polygon{transition:fill .35s,stroke .35s,opacity .25s}.at-legend{display:flex;align-items:center;justify-content:center;gap:12px;padding:13px 16px;color:#bbccd4;font-size:10px}.at-legend>span{display:flex;align-items:center;gap:6px}.at-legend i{width:7px;height:7px;border-radius:100%}.at-cool{background:#51bddf}.at-warm{background:#ffa66b}.at-gradient{width:100px;height:4px;border-radius:5px;background:linear-gradient(90deg,#51bddf,#efc683,#ffa66b)}.at-caption{border-top:1px solid #294653;padding:20px;min-height:101px}.at-caption strong{font-size:18px}.at-caption p{font-size:12px;line-height:1.6;color:#b8cbd4;margin:8px 0 0}.at-controls{padding:22px;border:1px solid #34505e;border-radius:17px;background:linear-gradient(130deg,#142b37,#0b1922)}.at-controls-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.at-controls-head h3{margin:0;font-size:19px;font-weight:600}.at-reset{border:1px solid #385867;border-radius:7px;background:#0a1b24;color:#bed5e0;padding:8px 10px;font:inherit;font-size:11px;cursor:pointer;min-height:36px}.at-control-help{color:#b8ccd7;font-size:11px;line-height:1.6;margin:12px 0 24px;min-height:35px}.at-room-control{display:block;margin-bottom:22px}.at-room-control>span{display:flex;align-items:center;justify-content:space-between;color:#cfdee5;font-size:13px}.at-room-control output{font-size:22px;letter-spacing:-.04em;color:#ffcf99;font-variant-numeric:tabular-nums}.at-room-control input{width:100%;height:30px;cursor:pointer;margin:8px 0 0}.at-room-control small{display:flex;justify-content:space-between;color:#8faebc;font-size:10px}.at-target-note{color:#a6beca;font-size:11px;line-height:1.65;margin:6px 0 0;padding-top:15px;border-top:1px solid #304a58}.at-demand{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center;margin:22px 0;padding:25px;border:1px solid #304953;border-radius:15px;background:#0c1e27}.at-demand h3{font-size:18px;font-weight:500;margin:0 0 9px}.at-demand p:not(.at-eyebrow){font-size:11px;color:#abc2ce;line-height:1.6;margin:0}.at-meter{height:9px;background:#203c47;border-radius:8px;position:relative}.at-meter-fill{display:block;height:100%;width:58.93%;border-radius:8px;background:linear-gradient(90deg,#52c4dc,#f3c48c);transition:width .35s}.at-reference{position:absolute;left:71.4286%;top:-6px;height:21px;width:2px;background:#e4eff4}.at-meter-labels{display:flex;justify-content:space-between;font-size:10px;color:#b8cdd6;margin:14px 0 12px}.at-demand .at-reference-label{font-size:10px}.at-explain{display:grid;grid-template-columns:1fr 1fr;gap:36px;padding:16px 0}.at-explain h3{font-size:17px;margin:0 0 11px;font-weight:500}.at-explain p,.at-assumptions p{font-size:12px;line-height:1.8;color:#aec4cf;margin:0 0 10px}.at-explain a{font-size:11px;color:#80dce5;text-underline-offset:3px}.at-assumptions{margin:12px 0;border-top:1px solid #29434f;padding-top:18px}.at-assumptions summary{font-size:12px;color:#c4d9e3;cursor:pointer;margin-bottom:12px}.at-heating :is(button,input,summary,a):focus-visible{outline:2px solid #81eaf1;outline-offset:5px}.at-heating button:hover{border-color:#72d7e1}@media(max-width:1000px){.at-layout{grid-template-columns:minmax(0,1fr) 270px}.at-controls{padding:17px}.at-room-control{margin-bottom:15px}}@media(max-width:760px){.at-layout{grid-template-columns:1fr}.at-controls{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}.at-controls-head,.at-control-help,.at-target-note{grid-column:1/-1}.at-control-help{min-height:0;margin:0 0 10px}.at-room-control{margin:4px 0 12px}.at-modes button{min-width:0;flex:1;padding:13px;font-size:13px}.at-modes button span{font-size:10px}.at-demand{grid-template-columns:1fr;gap:25px}.at-explain{grid-template-columns:1fr;gap:20px}.at-visual-bar{padding:14px;font-size:11px}.at-caption{min-height:112px}.at-heating .at-eyebrow{font-size:9px}}@media(prefers-reduced-motion:reduce){.at-house polygon,.at-meter-fill{transition:none}}

/* Preview starts with the section currently under review. */
.ar-heating-tools .at-preview-nav{max-width:1320px;margin:0 auto 30px;display:flex;justify-content:space-between;align-items:center;gap:18px;color:#bad1dc;font-size:12px}.at-preview-nav strong{font-weight:500}.at-preview-nav div{display:flex;gap:18px;flex-wrap:wrap}.at-preview-nav a{color:#b5cbd5;text-underline-offset:5px;padding:8px 0}.at-preview-nav a[aria-current]{color:#7ee6ef}.ar-heating-tools .at-heating{margin-top:0;padding-top:20px;margin-bottom:70px}.ar-heating-tools .at-heading h2{font-size:clamp(29px,3vw,42px);margin:0 0 12px}.ar-heating-tools #ar-routines{padding-top:45px;border-top:1px solid #29414c;scroll-margin-top:24px}@media(max-width:650px){.ar-heating-tools .at-preview-nav{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:18px}}
.at-heating .atr-routines{margin:0 0 22px}.atr-routines-heading{display:flex;gap:20px;align-items:baseline;justify-content:space-between;margin:26px 0 15px}.atr-routines-heading h3{margin:0;font-size:18px;font-weight:500}.atr-routines-heading p{color:#a8c0cc;font-size:12px;margin:0}.atr-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.atr-buttons button{border:1px solid #33515f;border-radius:11px;background:linear-gradient(135deg,#122a36,#0d1c26);color:#e7f3f7;text-align:left;padding:15px 18px;min-height:72px}.atr-buttons button strong{font-size:14px;font-weight:500}.atr-buttons button span{display:block;color:#a9c5d1;font-size:11px;margin-top:7px}.atr-buttons button[aria-pressed=true]{border-color:#74e0e9;box-shadow:inset 0 0 25px #2bd9ed17}.atr-playback{margin:20px 0 0;padding:21px 24px;border:1px solid #376271;border-radius:14px;background:linear-gradient(115deg,#102b35,#0b1b24)}.atr-heat-message{display:flex;align-items:center;gap:15px;min-height:58px}.atr-heat-icon{font-size:29px;color:#ffcb95}.atr-heat-message strong{font-size:17px;font-weight:500}.atr-heat-message p{font-size:12px;line-height:1.6;color:#e5c9a5;margin:7px 0}.atr-controls{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:18px 0 12px}.atr-controls button{border:1px solid #466674;border-radius:8px;background:#122d39;color:#d5edf5;font:inherit;font-size:12px;padding:10px 17px;min-height:42px}.atr-time{font-size:11px;color:#b5cbd5;margin-left:auto;font-variant-numeric:tabular-nums}.atr-timeline{display:flex;gap:20px;align-items:center;font-size:11px;color:#b1c8d4}.atr-timeline input{flex:1;min-width:80px;height:30px}.atr-note,.atr-reduced{font-size:11px;color:#a6bfca;line-height:1.7;margin:12px 0 0}.atr-journey{margin:5px 20px 12px;padding:16px;border:1px solid #345767;border-radius:12px;background:#10232f}.atr-journey-heading{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:#d2ecf4}.atr-journey-heading>span{color:#98b7c7;font-size:10px}.atr-road{height:32px;position:relative;margin:14px 14px 6px;border-bottom:2px dashed #426776}.atr-near-zone{position:absolute;left:55%;right:0;top:0;bottom:-2px;background:#2de4d916;border-left:1px solid #49c4cc}.atr-location{position:absolute;left:0;bottom:-7px;color:#6be7ed;text-shadow:0 0 8px #5fdce9;font-size:20px;line-height:14px}.atr-house-icon{position:absolute;right:0;bottom:0;font-size:30px;color:#c4e3ef}.atr-road-labels{display:flex;justify-content:space-between;font-size:10px;color:#a9c1cf;margin-top:12px}.at-heating [hidden]{display:none!important}@media(max-width:600px){.atr-routines-heading{display:block}.atr-routines-heading p{margin-top:9px}.atr-buttons{gap:6px}.atr-buttons button{padding:13px 10px}.atr-buttons button strong{font-size:12px}.atr-buttons button span{font-size:10px;line-height:1.5}.atr-playback{padding:18px 15px}.atr-heat-message strong{font-size:15px}.atr-timeline{gap:12px}.atr-journey{margin:5px 10px 10px;padding:12px}}

.at-heating .atr-buttons{grid-template-columns:repeat(4,1fr)}.atr-room-delay{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:15px 0;margin-top:12px;border-top:1px solid #345463;font-size:11px;color:#b6cfd9}.atr-room-occupied{color:#75e3dc;align-self:center}.atr-delay-label{display:block;font-size:10px;margin-bottom:8px}.atr-delay-track{display:block;height:4px;border-radius:4px;background:#233e49}.atr-delay-fill{display:block;width:100%;height:100%;border-radius:4px;background:#dfbd8a}.atr-room-note{font-size:11px;color:#b9ccd6;line-height:1.75;padding:13px 0 0;margin:12px 0 0;border-top:1px solid #345463}@media(max-width:760px){.at-heating .atr-buttons{grid-template-columns:repeat(2,1fr)}.atr-room-delay{gap:15px}}
.at-heating .atr-buttons{grid-template-columns:repeat(5,minmax(0,1fr))}.atd-day{border:1px solid #376474;border-radius:15px;background:linear-gradient(120deg,#102d38,#0a1a23);padding:24px;margin:0 0 22px}.atd-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:22px}.atd-heading h3{font-size:21px;font-weight:500;margin:0}.atd-clock{font-size:35px;color:#8aebee;letter-spacing:-.045em;font-variant-numeric:tabular-nums}.atd-range-label{display:block;font-size:12px;color:#bcd3de;margin-bottom:8px}.at-heating .atd-time{display:block;width:100%;height:30px;margin:0;accent-color:#6bdddf}.atd-hours{display:flex;justify-content:space-between;color:#a3bfce;font-size:10px;margin:6px 0 20px}.atd-stages{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px}.atd-stages button{background:#0c202b;border:1px solid #335462;border-radius:8px;color:#d5e7f0;padding:11px 8px;min-height:68px}.atd-stages time{display:block;font-size:14px;font-variant-numeric:tabular-nums}.atd-stages button span{display:block;margin-top:6px;font-size:10px;line-height:1.4;color:#acc6d3}.atd-stages button[aria-pressed=true]{border-color:#6ae0e4;background:#17414c}.atd-current{display:flex;justify-content:space-between;gap:16px;align-items:center;margin:22px 0 0;padding-top:18px;border-top:1px solid #2f525f}.atd-current strong{font-size:14px;font-weight:500;color:#e0f5f7}.atd-next{font-size:11px;color:#92c9d5}.atd-note{font-size:11px;line-height:1.7;color:#a9c4d1;margin:14px 0 0}@media(max-width:1000px){.at-heating .atr-buttons{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.at-heating .atr-buttons{grid-template-columns:repeat(2,minmax(0,1fr))}.atr-buttons .atd-open{grid-column:1/-1}.atd-stages{grid-template-columns:repeat(3,minmax(0,1fr))}.atd-day{padding:18px 14px}.atd-heading h3{font-size:18px}.atd-clock{font-size:30px}.atd-current{align-items:flex-start;flex-direction:column;gap:9px}}
.atc-savings{margin-top:38px;padding-top:30px;border-top:1px solid #35515f}.atc-savings header>h2{font-size:clamp(25px,3vw,36px);margin:0 0 14px;font-weight:600}.atc-savings header>p:last-child{font-size:14px;color:#b6cdd8;line-height:1.7;max-width:720px;margin:0 0 20px}.atc-caution{display:flex;flex-direction:column;gap:6px;padding:16px 19px;border:1px solid #46616a;border-left:3px solid #e0bd83;background:#17252b;border-radius:9px;margin-bottom:22px}.atc-caution strong{font-size:13px;font-weight:500;color:#ecd7b7}.atc-caution span{font-size:11px;color:#bdd0d9;line-height:1.65}.atc-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:start}.atc-inputs,.atc-results{padding:24px;border:1px solid #355462;border-radius:14px;background:linear-gradient(135deg,#122b36,#0c1a23)}.atc-input-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.atc-input-heading h3{margin:0;font-size:19px;font-weight:500}.atc-reset{padding:9px 12px;border-radius:8px;border:1px solid #476571;background:#0d232d;color:#c9e0e9;font-size:11px}.atc-fields{display:grid;grid-template-columns:1fr 1fr;gap:22px 18px}.atc-fields label,.atc-outside-label{display:block;color:#d1e1e8;font-size:12px;line-height:1.5}.atc-fields input,.atc-outside-label input{display:block;width:100%;padding:11px 12px;margin:9px 0;min-height:44px;background:#071821;border:1px solid #486673;border-radius:7px;color:#eef8fb;font-size:17px}.atc-fields small{display:block;color:#a2bfcc;font-size:10px;line-height:1.65}.atc-fields input[aria-invalid=true],.atc-outside-label input[aria-invalid=true]{border-color:#f0ae8b}.atc-targets{border-top:1px solid #304e5c;margin-top:23px;padding-top:20px}.atc-targets>strong{font-size:12px;font-weight:500;color:#d4e6ef}.atc-targets>div{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:13px 0}.atc-targets span{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:#abc9d7}.atc-targets b{color:#9be7e7;font-weight:500}.atc-targets a{font-size:11px;color:#9bdee9;text-underline-offset:4px}.atc-error{color:#f0bb9b;font-size:12px;line-height:1.6}.atc-compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}.atc-compare h3{font-size:14px;font-weight:500;margin:0 0 8px}.atc-compare p{font-size:11px;color:#b6cbd6;min-height:30px;margin:0 0 14px;line-height:1.5}.atc-compare strong{display:block;font-size:25px;font-weight:500;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.atc-compare article>span{display:block;color:#9fbdcb;font-size:10px;line-height:1.5;margin:7px 0 16px}.atc-bar{height:5px;background:#28434f;border-radius:5px}.atc-bar i{display:block;height:100%;width:100%;background:#d6b68a;border-radius:5px}.atc-bar .atc-zoned-bar{background:#79dddd;width:91.25%}.atc-saving{border-top:1px solid #355362;margin-top:26px;padding-top:25px}.atc-saving>span{font-size:12px;color:#a8dfe4}.atc-saving>strong{display:block;font-size:clamp(38px,4vw,53px);letter-spacing:-.05em;line-height:1.2;color:#a0f0e1;font-weight:500;margin:10px 0;font-variant-numeric:tabular-nums}.atc-saving p{color:#c1d6df;font-size:13px;margin:0 0 9px}.atc-saving b{color:#d8efee;font-weight:500}.atc-saving small{color:#a3c3d0;font-size:11px}.atc-saving[data-increase=true]>strong{color:#edc090}.atc-result-note,.atc-source,.atc-method p{font-size:11px;color:#afc7d2;line-height:1.8}.atc-result-note{margin:19px 0 0}.atc-method{border-top:1px solid #34505d;margin-top:22px;padding-top:20px}.atc-method summary{font-size:12px;color:#cee3eb;cursor:pointer;margin-bottom:18px}.atc-outside-label{max-width:320px}.atc-source a{color:#8edee8;text-underline-offset:3px}.ar-heating-tools .atc-savings header>h2{font-size:clamp(25px,3vw,36px)}@media(max-width:850px){.atc-layout{grid-template-columns:1fr}}@media(max-width:440px){.atc-inputs,.atc-results{padding:18px 14px}.atc-fields{gap:20px 14px}.atc-compare{gap:15px}.atc-compare strong{font-size:23px}.atc-input-heading h3{font-size:17px}}

.ar-heating-tools .at-heating{margin:0 auto 24px;padding-top:24px;border-top:1px solid #29434f}.ar-heating-tools .at-controls{min-width:0}.ar-heating-tools .at-house{max-width:100%}.ar-heating-tools .at-controls h3{letter-spacing:-.02em}



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/* Manufacturer research: scoped, static and lightweight. */
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.ats-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:30px}.ats-summary article{padding:22px;border:1px solid #355462;border-radius:12px;background:linear-gradient(135deg,#122b36,#0c1a23)}.ar-heating-tools .ats-summary h2{font-size:19px;line-height:1.4;margin:10px 0 12px;font-weight:500}.ats-summary h2 strong{font-size:29px;color:#a0f0e1;font-weight:500}.ats-summary article>p:not(.at-eyebrow){font-size:13px;color:#bdd3dc;line-height:1.75;margin:0 0 10px}.ats-summary b{font-weight:500;color:#e0f1f5}.ats-summary a{display:inline-flex;align-items:center;min-height:44px;color:#96e5e9;font-size:12px;text-underline-offset:4px}.ats-model-note{display:block;font-size:11px;color:#9fc0ce;line-height:1.7}.atm-research-details>summary{cursor:pointer;color:#d4edf1;font-size:17px;line-height:1.6;min-height:44px;padding:5px 0}.atm-research-details>summary span{font-size:12px;color:#9fc0ce;margin-left:12px;display:inline-block}.atm-research-content{padding-top:12px}.atm-research-content>.atm-footnote:first-child{margin:0 0 20px}.atm-temperature-method{border-top:1px solid #35515f;margin-top:20px;padding-top:16px}.atm-temperature-method>summary{color:#c8e8eb;cursor:pointer;min-height:44px;font-size:13px}.atm-temperature-method p{font-size:12px;line-height:1.75;color:#bdd3dc}.atm-temperature-method a{color:#96e5e9;text-underline-offset:4px}.ats-summary a:focus-visible,.atm-claims summary:focus-visible{outline:2px solid #96e5e9;outline-offset:4px}.atm-claims{scroll-margin-top:90px}@media(max-width:700px){.ats-summary{grid-template-columns:1fr;gap:14px}.ats-summary article{padding:20px}.atm-research-details>summary span{display:block;margin-left:18px}}@media(max-width:380px){.ats-summary h2 strong{font-size:25px}}