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/* Energy exchange: original symbol geometry remains unchanged. */
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/* The visual system follows exchange, continuity and human scale. */
.hero-symbol{height:auto;animation:none}.hero-symbol path[fill="#009FB8"]{animation:cool-mark 12s ease-in-out infinite}.hero-symbol path[fill="#C87348"]{animation:warm-mark 12s ease-in-out infinite}@keyframes cool-mark{0%,100%{opacity:1}50%{opacity:.72}}@keyframes warm-mark{0%,100%{opacity:.72}50%{opacity:1}}
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@media(max-width:1100px){.factor-buttons{grid-template-columns:repeat(3,1fr)}.heat-link{width:26px}.heat-node{padding:13px 10px}.transport-controls{flex-wrap:wrap}.balance-label.one{left:0}.balance-label.two{right:0}nav{gap:18px;font-size:13px}.wordmark{width:270px}}
@media(max-width:800px){.manifesto{gap:20px 6%}.factor-content{grid-template-columns:.9fr 1.1fr;gap:30px}.balance-ring{width:155px;height:155px}.ring-c{width:210px;height:210px}.ring-a{transform:translateX(-22px)}.ring-b{transform:translateX(22px)}.balance-center strong{font-size:20px}.balance-label.one,.balance-label.two{top:15%}.comfort-explorer{padding:25px}.comfort-heading{display:block}.thinking-columns{gap:20px}.heat-route{flex-wrap:wrap;gap:0}.heat-node{min-height:130px}.heat-node strong{font-size:16px}.heat-node small{font-size:12px}.route-description{gap:25px;grid-template-columns:1fr 1.3fr}}
@media(max-width:650px){.manifesto{display:block;margin-bottom:40px}.manifesto h2{font-size:36px;margin:22px 0}.comfort-explorer{padding:22px 18px;margin-left:-2px;margin-right:-2px}.comfort-heading h3{font-size:25px}.factor-buttons{grid-template-columns:1fr 1fr;gap:4px}.factor-buttons button{font-size:14px;padding:13px 4px}.factor-content{display:flex;flex-direction:column;padding-top:18px;gap:15px;align-items:stretch}.balance-diagram{min-height:260px}.balance-ring{width:190px;height:190px}.ring-c{width:230px;height:230px}.balance-label.one{top:42%;left:0;font-size:10px}.balance-label.two{top:42%;right:0;font-size:10px}.balance-label.three{font-size:12px}.balance-center strong{font-size:23px}#factor-detail{min-height:0}#factor-detail h3{font-size:26px}#factor-detail p{font-size:16px}.thinking-columns,.physics-grid,.wellbeing{grid-template-columns:1fr;gap:24px}.thinking summary,.references summary{font-size:15px}.steps{grid-template-columns:1fr;gap:28px}.steps article>span{min-height:0}.steps h3{margin-top:15px}.steps p{font-size:16px}.transport-controls{display:block}.control-group{margin-bottom:12px}.control-group button{flex:1;padding:12px 9px;font-size:13px}.mode-group{width:max-content;min-width:210px}.transport-panel{padding:25px 20px}.transport-top{display:block}.transport-top .eyebrow{margin-bottom:8px;font-size:11px}.heat-route{flex-direction:column;align-items:stretch;padding:25px 0}.heat-node{min-height:90px;padding:13px 18px;display:grid;grid-template-columns:25px 1fr;gap:5px 15px}.node-index{grid-column:1;grid-row:1/3;align-self:center;margin:0}.heat-node strong{font-size:22px;grid-column:2}.heat-node small{grid-column:2;margin:0;font-size:13px}.heat-link{height:32px;width:100%;display:flex;align-items:center;justify-content:center}.heat-link>span{top:0;position:absolute;left:calc(50% + 12px)}.heat-link>i{width:32px;transform:rotate(90deg)}.route-description{display:block;padding-top:24px}.route-description h3{font-size:25px;margin-bottom:18px}.route-foot{align-items:flex-start;flex-direction:column;gap:12px}.wellbeing{gap:0}.wellbeing p{font-size:16px}.closing h2{font-size:35px}.thinking-columns strong{margin-bottom:7px}nav{font-size:16px}.label-top{font-size:11px}.wordmark{width:225px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}.motion-paused *,.motion-paused *::before,.motion-paused *::after{animation-play-state:paused!important}
/* Automatic logo explanation in the original HVAC hero. */
.hero{grid-template-columns:1fr 1.05fr;column-gap:5%;align-items:center}.hero-story{position:relative;margin:0;background:transparent;color:white;min-width:0;border:0}.hero-story .story-stage{padding:27px 30px}.story-topline{color:#b0ced6;font-size:12px;letter-spacing:.12em}.story-composition{display:flex;flex-direction:column;gap:20px}.story-art{position:relative;display:grid;place-items:center;isolation:isolate;width:100%;height:280px;margin-top:10px}.story-mark-position{position:relative;width:174px;z-index:1;transform-origin:center;animation:automatic-mark 36s linear infinite;animation-play-state:paused}.story-symbol{width:100%;height:auto;display:block}.story-orbit{position:absolute;width:210px;aspect-ratio:1;border:1px solid #009fb870;border-radius:50%;transition:transform 2s ease,border-color 2s ease;pointer-events:none}.orbit-cold{transform:translateX(-30px)}.orbit-warm{border-color:#c8734870;transform:translateX(30px)}.orbit-air{width:270px;border-color:#ffffff20;border-style:dashed;animation:automatic-orbit 36s linear infinite;animation-play-state:paused}.hero-story[data-chapter="0"] .orbit-cold{transform:translateX(-25px) scale(1.08);border-color:#009fb8b0}.hero-story[data-chapter="0"] .orbit-warm{transform:translateX(25px) scale(.95)}.hero-story[data-chapter="1"] .orbit-cold{transform:translateX(-25px) scale(.95)}.hero-story[data-chapter="1"] .orbit-warm{transform:translateX(25px) scale(1.08);border-color:#c87348b0}.hero-story[data-chapter="2"] .orbit-cold{transform:translateX(0) scale(.9)}.hero-story[data-chapter="2"] .orbit-warm{transform:translateX(0) scale(1.1)}.story-art-label{position:absolute;bottom:0;font-size:11px;letter-spacing:.1em;color:#a9c7d0;text-align:center}.story-copy{width:100%;padding:12px 0 20px}.story-chapter{padding:15px 0}.story-chapter .eyebrow{font-size:12px;color:#b5d3db;margin:0 0 12px}.story-chapter h3{font-size:clamp(28px,2.3vw,36px);font-weight:400;letter-spacing:-.035em;line-height:1.2;margin:0 0 15px}.story-chapter h3 br{display:none}.story-chapter h3 em{display:block;color:#58c8da}.story-chapter[data-chapter="1"] h3 em{color:#e5a180}.story-chapter[data-chapter="2"] h3 em{color:#fff}.story-chapter p{font-size:16px;line-height:1.65;color:#c3d8df;margin:0;max-width:440px}.auto-ready .story-copy{display:grid;min-height:225px}.auto-ready .story-chapter{grid-area:1/1;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .8s ease,transform 1s ease,visibility .8s}.auto-ready .story-chapter.is-current{opacity:1;visibility:visible;transform:none}.story-timeline{display:grid;grid-template-columns:repeat(3,1fr);position:relative;border-bottom:1px solid #ffffff20;padding-bottom:14px;gap:10px;color:#8eacb7;font-size:11px;letter-spacing:.08em}.story-timeline span:nth-child(2){text-align:center}.story-timeline span:nth-child(3){text-align:right}.story-timeline i{position:absolute;bottom:-1px;height:2px;width:33.333%;left:0;background:#67c8d7;transition:transform 1s ease,background 1s ease}.hero-story[data-chapter="1"] .story-timeline i{transform:translateX(100%);background:#d79a79}.hero-story[data-chapter="2"] .story-timeline i{transform:translateX(200%);background:#d4e8ed}.hero-story[data-chapter="0"] .story-timeline span:first-child,.hero-story[data-chapter="1"] .story-timeline span:nth-child(2),.hero-story[data-chapter="2"] .story-timeline span:nth-child(3){color:#fff}.auto-running .story-mark-position,.auto-running .orbit-air{animation-play-state:running}@keyframes automatic-mark{to{transform:rotate(360deg)}}@keyframes automatic-orbit{to{transform:rotate(-360deg)}}body.motion-paused .hero-story *,body.motion-paused .hero-story *::before,body.motion-paused .hero-story *::after{animation-play-state:paused!important;transition:none!important}
@media(max-width:1000px){.hero{column-gap:3%;grid-template-columns:1fr 1fr}.hero-story .story-stage{padding:25px 20px}.story-art{height:250px}.story-mark-position{width:150px}.story-orbit{width:180px}.orbit-air{width:235px}.story-topline{font-size:11px}.auto-ready .story-copy{min-height:255px}.hero h1{font-size:clamp(48px,6vw,64px)}}
@media(max-width:700px){.hero{display:block}.hero-story{margin-top:40px}.hero-story .story-stage{padding:25px}.story-art{height:270px}.story-mark-position{width:170px}.story-orbit{width:200px}.orbit-air{width:260px}.auto-ready .story-copy{min-height:245px}.story-chapter h3{font-size:30px}.story-art-label{font-size:10px}.story-timeline{font-size:10px}.hero h1{font-size:clamp(43px,11vw,64px)}}
@media(prefers-reduced-motion:reduce){.hero-story *{animation:none!important;transition:none!important}.hero-story .story-copy{display:block}.hero-story .story-chapter{visibility:visible;opacity:1;transform:none;border-top:1px solid #ffffff20;padding:20px 0}.hero-story .story-timeline{display:none}}

/* Caption beneath the mark, on the continuous hero background. */
.hero-story .story-art-label{position:static;display:flex;flex-direction:column;gap:7px;margin:4px auto 0;font-size:11px;line-height:1.5;letter-spacing:.1em}.hero-story .story-art-label span:first-child{color:#c0d9e0}.hero-story .story-composition{gap:14px}@media(max-width:700px){.hero-story .story-art-label{font-size:10px;letter-spacing:.08em}}