.retail-preview{padding:10px 22px;text-align:center;background:#e9f2ee;color:#285b4b;font-size:12px;border-bottom:1px solid #d4e3dc}.thermostat-purchase{max-width:1200px;margin:48px auto 64px;padding:0 28px;display:grid;grid-template-columns:1.08fr 1fr;gap:64px;color:#153b46}.thermostat-gallery{align-self:start;position:sticky;top:24px}.photo-stage{background:#f0f5f3;border-radius:20px;overflow:hidden;aspect-ratio:1;display:grid;place-items:center}.photo-stage img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}.photo-thumbs{display:flex;gap:14px;margin-top:18px}.photo-thumbs button{padding:7px 10px;display:flex;align-items:center;gap:10px;border:1px solid #d0ddd7;border-radius:10px;background:white;font:inherit;font-size:12px;color:#3f5f56;cursor:pointer}.photo-thumbs button[aria-pressed=true]{border:2px solid #28634f;background:#f2f7f4;padding:6px 9px}.photo-thumbs img{width:55px;height:55px;object-fit:contain}.image-note{font-size:12px;line-height:1.6;color:#70827d;margin-top:18px}.thermostat-info h1{font-size:39px;line-height:1.15;letter-spacing:-.035em;margin:10px 0 14px}.thermostat-brand{font-size:18px;color:#46695b}.thermostat-info>p{line-height:1.65}.thermostat-info>p:not(.purchase-kicker){color:#5c746d}.thermostat-price{font-size:48px;line-height:1.1;font-weight:750;margin:24px 0 26px;letter-spacing:-.04em}.thermostat-price>span{font-size:28px}.thermostat-price small{display:block;font-size:12px;font-weight:400;letter-spacing:0;color:#6b827a;margin-top:8px}.thermostat-info fieldset{border:0;padding:0;margin:0 0 20px}.thermostat-info legend{font-weight:650;font-size:13px;margin-bottom:10px}.color-options span:before{content:'';display:inline-block;width:13px;height:13px;border:1px solid #a6b6b0;border-radius:50%;margin-inline-end:8px;background:#fcfcfc;vertical-align:-1px}.color-options input[value=black]+span:before{background:#202522;border-color:#202522}.retail-unavailable{width:100%;border:0;border-radius:9px;padding:14px;background:#e4eae7;color:#6c7e76;font:inherit;font-weight:650;cursor:not-allowed}.selected-config{font-size:12px;min-height:20px;color:#376252;margin:18px 0}.availability-note{font-size:12px;color:#6a7e76;line-height:1.6}.thermostat-actions{display:flex;gap:10px}.thermostat-actions button{flex:1;background:#235f50;color:white;border:0;border-radius:8px;padding:13px 10px;font:inherit;font-size:12px;cursor:pointer}.thermostat-actions .secondary{background:white;color:#235f50;border:1px solid #bacdc2}.compatibility-callout{margin-top:25px;padding:16px 18px;background:#f2f6f3;border-inline-start:3px solid #69947e;font-size:12px;line-height:1.65}.thermostat-features{max-width:1200px;margin:0 auto 64px;padding:0 28px}.thermostat-features>h2{font-size:30px;letter-spacing:-.02em}.feature-tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:25px 0 42px}.feature-tiles article{border:1px solid #dce6e0;border-radius:12px;padding:20px;background:white}.feature-tiles article>span{font-size:12px;color:#5f8a75}.feature-tiles h3{font-size:15px;line-height:1.5;font-weight:600}.project-callout{background:#edf5f0;border-radius:16px;padding:24px;display:flex;align-items:center;gap:28px;justify-content:space-between}.project-callout h2{font-size:22px;margin-top:0}.project-callout p{font-size:14px;line-height:1.6;margin-bottom:0}.project-callout .button{flex-shrink:0}.thermostat-card .gateway-image img{height:270px}.thermostat-card .gateway-content h2{font-size:25px}.gateway-grid{align-items:stretch}.variant-options input:focus-visible+span,.photo-thumbs button:focus-visible,button:focus-visible{outline:3px solid #719e8d;outline-offset:3px}@media(max-width:760px){.thermostat-purchase{grid-template-columns:1fr;gap:28px;margin-top:24px;padding:0 18px}.thermostat-gallery{position:static}.photo-stage{max-height:420px;aspect-ratio:1}.thermostat-info h1{font-size:32px}.thermostat-features{padding:0 18px}.thermostat-features>h2{font-size:26px}.feature-tiles{grid-template-columns:1fr 1fr}.project-callout{align-items:start;flex-direction:column}.thermostat-actions{flex-wrap:wrap}.thermostat-actions button{min-width:140px}.photo-thumbs button{font-size:11px}.retail-preview{font-size:11px}.thermostat-card .gateway-image img{height:240px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
@media(min-width:641px) and (max-width:900px){.thermostat-purchase{grid-template-columns:.96fr 1fr;gap:26px;padding:0 18px}.thermostat-gallery{position:sticky;top:16px}.photo-stage{max-height:none;aspect-ratio:1}.thermostat-info h1{font-size:29px}.thermostat-brand{font-size:15px}.thermostat-price{margin:18px 0 22px}.thermostat-actions{flex-direction:column}.photo-thumbs{gap:9px}.photo-thumbs button{flex:1;flex-direction:column;gap:4px;padding:6px}.photo-thumbs button[aria-pressed=true]{padding:5px}.image-note{font-size:11px}.thermostat-info .protocol-note{font-size:11px}.feature-tiles{grid-template-columns:1fr 1fr}}@media(max-width:640px){.photo-stage{width:min(100%,380px);margin-inline:auto}.photo-thumbs{justify-content:center}.thermostat-info h1{font-size:31px}}

#preview-buy{background:#28634f;color:#fff;cursor:pointer}#preview-buy:hover{background:#194a38}.shipping-rates{font-size:12px;line-height:1.6;margin:16px 0 22px;color:#46695b}.shipping-rates summary{cursor:pointer;font-weight:650}.shipping-rates table{width:100%;border-collapse:collapse;margin-top:10px}.shipping-rates th,.shipping-rates td{text-align:start;padding:7px 4px;border-bottom:1px solid #e0e8e4}.shipping-rates p{font-size:11px}

/* Product gallery: equal-size black and white views in a horizontal pair. */
.photo-stage{position:relative}.photo-stage [hidden]{display:none!important}.photo-stage.paired-view{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:center;gap:0;padding:0 12px;aspect-ratio:1.25;max-height:none;isolation:isolate}.photo-stage.paired-view img{position:static;width:100%;height:auto;aspect-ratio:1;min-width:0;max-width:none;object-fit:contain;transform:scale(1.45);align-self:center}.photo-stage.paired-view.front-pair #companion-photo{transform:scale(1.45) translateY(2.25%)}

.thermostat-card .thermostat-pair{position:relative;height:320px;padding:0;overflow:hidden;isolation:isolate}.thermostat-card .thermostat-pair img{position:absolute;width:68%;height:95%;max-width:none;object-fit:contain}.thermostat-card .thermostat-pair .pair-black{left:-6%;top:-12%}.thermostat-card .thermostat-pair .pair-white{right:-6%;bottom:-12%}@media(max-width:640px){.thermostat-card .thermostat-pair{height:260px}}

/* Product listing: align black and white views on the same horizontal line. */
.thermostat-card .thermostat-pair{display:grid;grid-template-columns:1fr 1fr;align-items:center;padding:0 16px;gap:0}.thermostat-card .thermostat-pair img{position:static;width:100%;height:100%;min-width:0;object-fit:contain;transform:scale(1.18)}.thermostat-card .thermostat-pair .pair-black,.thermostat-card .thermostat-pair .pair-white{inset:auto}@media(max-width:640px){.thermostat-card .thermostat-pair{padding:0 12px}}

/* Front photographs share an 800px canvas and matching product dimensions. */
.thermostat-card .thermostat-pair img{transform:scale(1.18);object-position:center}

.thermostat-card .thermostat-pair img{height:auto;aspect-ratio:1;align-self:center}.thermostat-card .thermostat-pair .pair-white{transform:scale(1.18) translateY(2.25%)}