:root{
  --ink:#171a18;
  --ink-soft:#505953;
  --green:#2f7d4a;
  --green-bright:#8fd4a5;
  --green-deep:#102b1d;
  --paper:#ffffff;
  --soft:#f3f6f2;
  --line:rgba(23,26,24,.12);
  --heating:#cb2027;
  --cooling:#00aced;
  --radius:24px;
  --shadow:0 24px 70px rgba(13,32,21,.1);
  --shell:min(1180px,calc(100vw - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body.nav-open{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit}
button,input,textarea{font:inherit}
button{cursor:pointer}
.shell{width:var(--shell);margin-inline:auto}
.section-anchor{scroll-margin-top:92px}
.skip-link{position:fixed;left:14px;top:-80px;z-index:1000;background:#fff;padding:12px 16px;border-radius:10px;transition:top .2s ease}.skip-link:focus{top:14px}
.site-header{position:fixed;inset:0 0 auto;z-index:100;padding:16px 0;transition:background .25s ease,box-shadow .25s ease,padding .25s ease}.site-header.scrolled{padding:9px 0;background:rgba(255,255,255,.93);backdrop-filter:blur(18px);box-shadow:0 1px 0 rgba(23,26,24,.08)}
.nav-shell{width:var(--shell);margin-inline:auto;display:flex;align-items:center;justify-content:space-between;min-height:62px}.brand{position:relative;width:245px;height:44px;display:inline-flex;align-items:center;text-decoration:none;flex:0 0 auto}.brand img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:left center;transition:opacity .2s ease}.logo-dark{opacity:0}.logo-light{opacity:1}.site-header.scrolled .logo-dark{opacity:1}.site-header.scrolled .logo-light{opacity:0}
.site-nav{display:flex;align-items:center;gap:28px}.site-nav a{text-decoration:none;font-size:14px;font-weight:700;letter-spacing:.01em;color:#fff;transition:opacity .2s ease,color .2s ease,background .2s ease}.site-header.scrolled .site-nav a{color:var(--ink)}.site-nav a:hover{opacity:.68}.site-nav .nav-cta{padding:10px 16px;border:1px solid rgba(255,255,255,.52);border-radius:999px}.site-header.scrolled .site-nav .nav-cta{border-color:transparent;background:var(--green-deep);color:#fff}
.nav-toggle{display:none;width:44px;height:44px;padding:0;border:0;background:transparent}.nav-toggle span{display:block;width:23px;height:2px;margin:6px auto;background:#fff;transition:transform .25s ease,background .25s ease}.site-header.scrolled .nav-toggle span{background:var(--ink)}
.hero{position:relative;min-height:100svh;display:grid;align-items:end;overflow:hidden;background:var(--green-deep);color:#fff}.hero-media{position:absolute;inset:0;background:url("assets/hero.webp") center/cover no-repeat;transform:scale(1.02);animation:heroIn 1.15s cubic-bezier(.2,.8,.2,1) both}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,16,10,.84) 0%,rgba(5,16,10,.57) 46%,rgba(5,16,10,.16) 76%),linear-gradient(0deg,rgba(5,16,10,.68),transparent 45%)}.hero-content{position:relative;z-index:2;padding:175px 0 135px}.eyebrow,.kicker{margin:0 0 22px;font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.18em}.eyebrow{color:var(--green-bright)}.hero h1{max-width:980px;margin:0;font-size:clamp(62px,9vw,132px);line-height:.88;letter-spacing:-.066em;font-weight:780}.hero h1 span{color:var(--green-bright)}.hero-copy{max-width:650px;margin:36px 0 0;font-size:clamp(19px,2.3vw,29px);line-height:1.28;color:rgba(255,255,255,.86)}.hero-actions{display:flex;align-items:center;gap:26px;margin-top:42px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:54px;padding:0 23px;border:0;border-radius:999px;text-decoration:none;font-weight:760;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}.button:hover{transform:translateY(-2px);box-shadow:0 13px 32px rgba(0,0,0,.16)}.button-primary{background:var(--green-bright);color:var(--green-deep)}.text-link{color:#fff;text-decoration:none;font-weight:700}.text-link span{display:inline-block;margin-left:7px;transition:transform .2s ease}.text-link:hover span{transform:translateY(4px)}
.section{padding:112px 0}.section-light{background:#fff}.section-soft{background:var(--soft)}.section-dark{background:var(--green-deep);color:#fff}.kicker{color:var(--green)}.kicker-light{color:var(--green-bright)}h2{margin:0;max-width:780px;font-size:clamp(42px,6vw,76px);line-height:.98;letter-spacing:-.048em}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:start}.about-copy{padding-top:34px;font-size:20px;line-height:1.65;color:var(--ink-soft)}.about-copy p{margin:0 0 20px}.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:78px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.principle-grid article{padding:30px 34px 34px 0}.principle-grid article+article{padding-left:34px;border-left:1px solid var(--line)}.principle-grid span,.card-label{font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--green)}.principle-grid h3{margin:48px 0 12px;font-size:24px;letter-spacing:-.025em}.principle-grid p{margin:0;color:var(--ink-soft);line-height:1.55}
.section-heading-row,.sector-header{display:grid;grid-template-columns:1.35fr .65fr;gap:80px;align-items:end}.section-intro{margin:0 0 5px;max-width:480px;font-size:18px;line-height:1.6;color:var(--ink-soft)}.solution-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:54px}.solution-card{position:relative;min-height:610px;padding:34px;border:1px solid rgba(23,26,24,.08);border-radius:var(--radius);background:#fff;box-shadow:0 1px 0 rgba(23,26,24,.03);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.solution-card:hover{transform:translateY(-7px);box-shadow:var(--shadow);border-color:transparent}.solution-card:before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--heating)}.cooling-card:before{background:var(--cooling)}.solution-card-head{display:flex;align-items:center;justify-content:space-between;gap:20px}.solution-icon{width:62px;height:62px;display:grid;place-items:center;border-radius:17px}.solution-icon svg{width:34px;height:34px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}.heating-icon{color:var(--heating);background:rgba(203,32,39,.09)}.heating-icon svg{fill:currentColor;stroke:none}.cooling-icon{color:var(--cooling);background:rgba(0,172,237,.1)}.saving-chip{padding:9px 12px;border:1px solid rgba(47,125,74,.22);border-radius:999px;background:#f2f8f3;color:var(--green-deep);font-size:12px;font-weight:800;white-space:nowrap}.card-label{margin:48px 0 13px}.solution-card h3{margin:0;font-size:clamp(36px,4vw,54px);line-height:1;letter-spacing:-.045em}.solution-lead{margin:23px 0 28px;max-width:520px;font-size:18px;line-height:1.55;color:var(--ink-soft)}.solution-card ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.solution-card li{position:relative;padding:15px 0 15px 27px;border-bottom:1px solid var(--line);line-height:1.45}.solution-card li:before{content:"";position:absolute;left:1px;top:22px;width:8px;height:8px;border-radius:50%;background:var(--green)}.disclaimer{margin:25px 0 0;font-size:12px;line-height:1.5;color:#747c77}
.dark-heading{display:grid;grid-template-columns:.35fr 1.65fr;gap:40px;align-items:start}.section-title-light{color:#fff}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:58px}.step-card{min-height:380px;display:flex;flex-direction:column;justify-content:space-between;padding:30px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);background:rgba(255,255,255,.045);transition:transform .25s ease,background .25s ease,border-color .25s ease}.step-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.075);border-color:rgba(143,212,165,.42)}.step-number{font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--green-bright)}.step-content h3{margin:0 0 16px;font-size:30px;line-height:1.08;letter-spacing:-.035em}.step-content p{margin:0;color:rgba(255,255,255,.7);line-height:1.62}
.sector-header{align-items:end}.sector-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:56px;border-top:1px solid var(--line);border-left:1px solid var(--line)}.sector-grid div{min-height:145px;padding:22px;display:flex;flex-direction:column;justify-content:space-between;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .2s ease}.sector-grid div:hover{background:var(--soft)}.sector-grid span{font-size:11px;color:#7b837e}.sector-grid strong{font-size:19px;letter-spacing:-.02em}
.statement{position:relative;overflow:hidden;background:var(--green-deep);color:#fff}.statement-bg{position:absolute;inset:0;background:linear-gradient(110deg,rgba(143,212,165,.08),transparent 56%)}.statement-inner{position:relative;padding:95px 0}.statement-inner p{margin:0;font-size:clamp(46px,7vw,92px);line-height:.98;letter-spacing:-.055em;color:rgba(255,255,255,.48)}.statement-inner strong{color:var(--green-bright);font-weight:760}
.contact-section{background:#eef3ee}.contact-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:85px;align-items:start}.contact-copy{max-width:520px;margin:28px 0 0;font-size:19px;line-height:1.6;color:var(--ink-soft)}.contact-assurance{display:grid;grid-template-columns:38px 1fr;gap:15px;align-items:start;margin-top:30px}.assurance-line{height:1px;margin-top:12px;background:var(--green)}.contact-assurance p{margin:0;line-height:1.55;color:var(--ink-soft)}.next-step-card{margin-top:34px;padding:26px;border:1px solid rgba(23,26,24,.1);border-radius:18px;background:rgba(255,255,255,.55)}.next-step-title{margin:0 0 9px;font-weight:800}.next-step-card>p:not(.next-step-title){margin:0 0 12px;color:var(--ink-soft);line-height:1.5}.next-step-card ul{margin:12px 0 17px;padding-left:20px;color:var(--ink-soft);line-height:1.6}.next-step-card .confidentiality{margin:0;font-size:12px}.contact-details{display:flex;flex-direction:column;gap:7px;margin-top:30px;font-weight:750}.contact-details a{text-decoration:none;color:var(--green-deep)}.contact-details span{color:var(--ink-soft);font-weight:600}.contact-form{padding:34px;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.contact-form label{display:block;margin-bottom:20px}.contact-form label>span,.choice-fieldset legend{display:block;margin:0 0 8px;font-size:13px;font-weight:760}.contact-form input,.contact-form textarea{width:100%;border:1px solid rgba(23,26,24,.16);border-radius:12px;background:#fbfcfb;color:var(--ink);outline:none;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}.contact-form input{height:50px;padding:0 14px}.contact-form textarea{resize:vertical;min-height:130px;padding:14px}.contact-form input:focus,.contact-form textarea:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(47,125,74,.1);background:#fff}.choice-fieldset{margin:2px 0 20px;padding:0;border:0}.choice-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.choice{margin:0!important}.choice input{position:absolute;opacity:0;pointer-events:none}.choice span{height:48px!important;display:grid!important;place-items:center;margin:0!important;border:1px solid rgba(23,26,24,.16);border-radius:12px;background:#fbfcfb;transition:.2s ease}.choice input:checked+span{border-color:var(--green);background:#edf7ef;color:var(--green-deep)}.choice input:focus-visible+span{box-shadow:0 0 0 4px rgba(47,125,74,.1)}.form-submit{width:100%;margin-top:2px}.form-note{margin:12px 0 0;text-align:center;font-size:12px;color:#727a75}
.site-footer{padding:44px 0;background:#0a1e14;color:#fff}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.footer-brand{width:210px;height:38px}.footer-grid>p{margin:0;color:rgba(255,255,255,.58)}.footer-links{display:flex;gap:18px}.footer-links button{padding:0;border:0;background:none;color:rgba(255,255,255,.7);text-decoration:underline;text-underline-offset:4px}.copyright{text-align:right;font-size:13px}.legal-modal{width:min(660px,calc(100vw - 32px));padding:38px;border:0;border-radius:20px;box-shadow:0 30px 90px rgba(0,0,0,.3)}.legal-modal::backdrop{background:rgba(5,15,10,.72);backdrop-filter:blur(5px)}.legal-modal h2{font-size:38px}.legal-modal p{line-height:1.65;color:var(--ink-soft)}.modal-close{position:absolute;top:16px;right:18px;width:38px;height:38px;border:0;border-radius:50%;background:var(--soft);font-size:25px}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .72s ease,transform .72s cubic-bezier(.2,.8,.2,1)}.reveal.in-view{opacity:1;transform:none}@keyframes heroIn{from{opacity:.45;transform:scale(1.08)}to{opacity:1;transform:scale(1.02)}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.hero-media{animation:none}.reveal{opacity:1;transform:none;transition:none}.button,.solution-card,.step-card{transition:none}}
@media (max-width:900px){.site-nav{position:fixed;inset:0;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:24px;padding:90px 30px;background:var(--green-deep);transform:translateX(100%);transition:transform .28s ease}.site-nav.open{transform:none}.site-nav a,.site-header.scrolled .site-nav a{font-size:26px;color:#fff}.site-nav .nav-cta,.site-header.scrolled .site-nav .nav-cta{padding:0;border:0;background:none}.nav-toggle{position:relative;z-index:2;display:block}.site-header.scrolled .nav-toggle[aria-expanded="true"] span{background:#fff}.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(4px) rotate(45deg)}.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4px) rotate(-45deg)}.about-grid,.section-heading-row,.sector-header,.dark-heading,.contact-grid{grid-template-columns:1fr;gap:36px}.about-copy{padding-top:0}.principle-grid{grid-template-columns:1fr}.principle-grid article,.principle-grid article+article{padding:24px 0;border-left:0;border-top:1px solid var(--line)}.principle-grid article:first-child{border-top:0}.principle-grid h3{margin-top:24px}.steps{grid-template-columns:1fr}.step-card{min-height:290px}.sector-grid{grid-template-columns:repeat(3,1fr)}.contact-grid{gap:52px}.footer-grid{grid-template-columns:1fr}.copyright{text-align:left}}
@media (max-width:700px){:root{--shell:min(100% - 28px,1180px)}.site-header{padding:10px 0}.brand{width:205px;height:37px}.section-anchor{}.hero{min-height:760px}.hero-content{padding:150px 0 98px}.hero h1{font-size:clamp(53px,17vw,82px)}.hero-copy{font-size:19px}.hero-actions{align-items:flex-start;flex-direction:column}.section{padding:82px 0}h2{font-size:clamp(40px,13vw,60px)}.solution-grid{grid-template-columns:1fr;margin-top:38px}.solution-card{min-height:0;padding:26px}.solution-card-head{align-items:flex-start;flex-direction:column}.card-label{margin-top:34px}.solution-card h3{font-size:42px}.steps{margin-top:40px}.step-card{min-height:300px;padding:25px}.sector-grid{grid-template-columns:repeat(2,1fr)}.sector-grid div{min-height:120px;padding:17px}.sector-grid strong{font-size:16px}.statement-inner{padding:72px 0}.contact-form{padding:23px}.form-row{grid-template-columns:1fr;gap:0}.choice-row{grid-template-columns:1fr}.footer-links{flex-direction:column;gap:10px}}
@media (max-width:420px){.sector-grid{grid-template-columns:1fr}.hero h1{font-size:50px}.saving-chip{white-space:normal}.solution-icon{width:56px;height:56px}}

/* Version 3c refinements */
#about{padding-bottom:92px}
#solutions .section-heading-row{display:block}
#solutions .solution-grid{margin-top:38px}
.heating-icon svg{fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.saving-chip{padding:13px 20px;border-width:2px;border-color:rgba(47,125,74,.34);background:#eef8f0;font-size:15px;font-weight:850;box-shadow:0 8px 24px rgba(47,125,74,.1)}

#how.section-dark{padding:54px 0 62px;background:#edf2ee;color:var(--ink)}
.how-heading{display:grid;grid-template-columns:.28fr .72fr;gap:22px 48px;align-items:end}
.how-heading .kicker{grid-row:1 / span 2;margin:3px 0 0}
.how-heading h2{font-size:clamp(34px,4vw,52px);line-height:1;letter-spacing:-.04em}
.how-heading>p:last-child{margin:12px 0 0;max-width:690px;color:var(--ink-soft);font-size:17px;line-height:1.5}
.steps{gap:22px;margin-top:34px}
.step-card{min-height:285px;padding:28px;border:1px solid rgba(23,26,24,.08);background:#fff;color:var(--ink);box-shadow:0 18px 45px rgba(13,32,21,.09)}
.step-card:nth-child(1){border-top:5px solid var(--green)}
.step-card:nth-child(2){border-top:5px solid #5f9d72}
.step-card:nth-child(3){border-top:5px solid var(--green-deep)}
.step-card:hover{transform:translateY(-8px);background:#fff;border-color:rgba(23,26,24,.08);box-shadow:0 25px 60px rgba(13,32,21,.14)}
.step-top{display:flex;justify-content:space-between;align-items:center}
.step-number{color:var(--green);font-size:14px}
.step-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:var(--soft);color:var(--green-deep);font-size:25px;font-weight:800}
.step-content h3{font-size:27px;color:var(--ink)}
.step-content p{color:var(--ink-soft)}

.sector-header h2{font-size:clamp(44px,5.7vw,72px)}
.sector-grid{grid-template-columns:repeat(4,1fr);gap:18px;margin-top:48px;border:0}
.sector-grid div{min-height:155px;padding:24px;border:1px solid rgba(23,26,24,.08);border-radius:20px;background:linear-gradient(145deg,#fff,#f7faf7);box-shadow:0 12px 34px rgba(13,32,21,.06);justify-content:flex-start;gap:32px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.sector-grid div:hover{transform:translateY(-5px);background:#fff;border-color:rgba(47,125,74,.24);box-shadow:0 20px 44px rgba(13,32,21,.11)}
.sector-icon{width:42px;height:42px;border-radius:13px;background:#eaf4ec;position:relative}
.sector-icon:before,.sector-icon:after{content:"";position:absolute;border:2px solid var(--green);border-radius:3px}
.sector-icon:before{width:17px;height:20px;left:11px;top:10px}
.sector-icon:after{width:5px;height:5px;left:17px;top:17px;border-width:0 2px 2px 0;border-radius:0}
.sector-grid strong{font-size:20px;line-height:1.2}

.contact-assurance{display:block;margin-top:30px;padding:22px 24px;border:1px solid rgba(47,125,74,.15);border-radius:16px;background:rgba(255,255,255,.66);box-shadow:0 12px 32px rgba(13,32,21,.06)}
.contact-assurance p{font-size:17px}
.next-step-card{background:#fff;box-shadow:0 14px 36px rgba(13,32,21,.07)}

@media (max-width:900px){
  .how-heading{grid-template-columns:1fr;gap:8px}.how-heading .kicker{grid-row:auto}.steps{grid-template-columns:1fr}.step-card{min-height:250px}
  .sector-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:700px){
  #how.section-dark{padding:64px 0}.sector-grid{grid-template-columns:1fr}.saving-chip{font-size:14px;padding:11px 16px}.solution-card-head{flex-direction:row;align-items:center}.sector-grid div{min-height:130px}
}

/* Version 3d final polish */
:root{--header-offset:80px}
.brand{width:268px;height:48px}

/* Frame navigated sections cleanly beneath the fixed header. */
#about,#solutions,#how,#sectors,#contact{min-height:calc(100svh - var(--header-offset));}
#about,#solutions,#how,#sectors{display:flex;align-items:center}
#about>.shell,#solutions>.shell,#how>.shell,#sectors>.shell{width:var(--shell)}
#about{padding:72px 0}
#solutions{padding:62px 0}
#how.section-dark{padding:48px 0}
#contact{padding:72px 0}

/* Heating and cooling cards */
.solution-grid{gap:28px;margin-top:34px}
.solution-card{min-height:570px;box-shadow:0 18px 50px rgba(13,32,21,.09)}
.solution-card:hover{box-shadow:0 28px 70px rgba(13,32,21,.15)}
.heating-icon svg{fill:none;stroke:currentColor;stroke-width:2.35;stroke-linecap:round;stroke-linejoin:round}
.saving-chip{padding:14px 22px;font-size:16px;font-weight:900;letter-spacing:-.01em;border-color:rgba(47,125,74,.42);background:#eaf6ed;box-shadow:0 10px 28px rgba(47,125,74,.15)}

/* How it works: restrained heading, stronger cards. */
.how-heading{display:grid;grid-template-columns:.25fr .75fr;gap:10px 42px;align-items:end}
.how-heading .kicker{grid-row:1 / span 2;margin:0}
.how-heading h2{font-size:clamp(31px,3.4vw,46px)}
.how-heading>p:last-child{margin:8px 0 0;font-size:16px}
.steps{margin-top:28px;gap:24px}
.step-card{min-height:300px;padding:30px;border:1px solid rgba(23,26,24,.09);border-top:0!important;border-radius:22px;box-shadow:0 22px 54px rgba(13,32,21,.12);overflow:hidden;position:relative}
.step-card:before{content:"";position:absolute;inset:0 0 auto;height:6px;background:linear-gradient(90deg,var(--green),var(--green-bright))}
.step-card:nth-child(2):before{background:linear-gradient(90deg,#397d52,#79bb8d)}
.step-card:nth-child(3):before{background:linear-gradient(90deg,var(--green-deep),var(--green))}
.step-icon{width:54px;height:54px;font-size:28px;background:#eaf4ec;box-shadow:inset 0 0 0 1px rgba(47,125,74,.1)}

/* Replace the sector catalogue with one confident brand statement. */
.philosophy-section{position:relative;overflow:hidden;background:var(--green-deep);color:#fff;padding:72px 0}
.philosophy-section:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 83% 22%,rgba(143,212,165,.16),transparent 34%),linear-gradient(125deg,rgba(255,255,255,.035),transparent 58%);pointer-events:none}
.philosophy-layout{position:relative;display:grid;grid-template-columns:.72fr 1.28fr;gap:90px;align-items:center}
.philosophy-intro h2{max-width:560px;color:#fff;font-size:clamp(48px,5.7vw,76px)}
.philosophy-intro>p:last-child{max-width:500px;margin:30px 0 0;font-size:19px;line-height:1.62;color:rgba(255,255,255,.7)}
.philosophy-statement{padding:48px 0 48px 62px;border-left:1px solid rgba(255,255,255,.16)}
.philosophy-statement p{margin:0;font-size:clamp(50px,6vw,86px);line-height:.98;letter-spacing:-.055em;color:rgba(255,255,255,.5)}
.philosophy-statement p+p{margin-top:8px}
.philosophy-statement strong{color:var(--green-bright);font-weight:780}

/* Contact cards and form retain clarity while gaining depth. */
.contact-assurance{border-color:rgba(47,125,74,.23);box-shadow:0 16px 42px rgba(13,32,21,.09)}
.next-step-card{border-color:rgba(47,125,74,.15);box-shadow:0 18px 48px rgba(13,32,21,.1)}
.contact-form{box-shadow:0 28px 76px rgba(13,32,21,.14)}

@media (max-width:900px){
  :root{--header-offset:70px}
  #about,#solutions,#how,#sectors,#contact{min-height:auto;display:block}
  .brand{width:230px;height:42px}
  .philosophy-layout{grid-template-columns:1fr;gap:42px}
  .philosophy-statement{padding:38px 0 0;border-left:0;border-top:1px solid rgba(255,255,255,.16)}
}
@media (max-width:700px){
  .brand{width:215px;height:39px}
  #about,#solutions,#how,#sectors,#contact{padding:66px 0}
  .solution-card{min-height:0}
  .saving-chip{font-size:14px;padding:11px 15px}
  .philosophy-intro h2{font-size:clamp(42px,13vw,58px)}
  .philosophy-statement p{font-size:clamp(42px,12vw,62px)}
}

/* Version 3e final two snags */
.how-heading{grid-template-columns:.20fr .80fr}
.how-heading>p:last-child{max-width:820px}
.heating-icon svg{width:32px;height:32px}


/* Version 3h: icon-free heating and cooling cards */
.solution-card-head{justify-content:flex-end;min-height:62px}
.heating-card{background:
  radial-gradient(circle at 0 0,rgba(203,32,39,.085),transparent 34%),
  linear-gradient(180deg,#fff 0%,#fff 72%,rgba(203,32,39,.018) 100%)}
.cooling-card{background:
  radial-gradient(circle at 0 0,rgba(0,172,237,.09),transparent 34%),
  linear-gradient(180deg,#fff 0%,#fff 72%,rgba(0,172,237,.02) 100%)}
.heating-card .card-label{color:var(--heating)}
.cooling-card .card-label{color:var(--cooling)}
.heating-card li:before{background:var(--heating)}
.cooling-card li:before{background:var(--cooling)}
.heating-card .saving-chip{border-color:rgba(203,32,39,.32);background:rgba(203,32,39,.055);color:#82161b;box-shadow:0 10px 28px rgba(203,32,39,.08)}
.cooling-card .saving-chip{border-color:rgba(0,172,237,.34);background:rgba(0,172,237,.06);color:#006f99;box-shadow:0 10px 28px rgba(0,172,237,.09)}

/* Version 3.1 refinement */
:root{
  --slate:#344d5c;
  --slate-deep:#223844;
  --mint:#8fd4a5;
}
.site-header{padding:12px 0}
.nav-shell{min-height:70px}
.brand{width:360px;height:66px}
.hero{background:var(--slate-deep)}
.hero-overlay{background:linear-gradient(90deg,rgba(26,48,60,.91) 0%,rgba(36,65,79,.72) 48%,rgba(36,65,79,.22) 78%),linear-gradient(0deg,rgba(25,45,56,.72),transparent 48%)}
.site-header.scrolled .site-nav .nav-cta{background:var(--slate-deep)}

/* Stronger heating and cooling colour wash */
.heating-card{background:
  radial-gradient(circle at 5% 5%,rgba(203,32,39,.20),transparent 44%),
  linear-gradient(145deg,rgba(203,32,39,.075) 0%,#fff 48%,rgba(203,32,39,.035) 100%)}
.cooling-card{background:
  radial-gradient(circle at 5% 5%,rgba(0,172,237,.21),transparent 44%),
  linear-gradient(145deg,rgba(0,172,237,.08) 0%,#fff 48%,rgba(0,172,237,.04) 100%)}
.heating-card{border-color:rgba(203,32,39,.13)}
.cooling-card{border-color:rgba(0,172,237,.14)}
.heating-card:after,.cooling-card:after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.7}
.heating-card:after{background:linear-gradient(110deg,rgba(203,32,39,.07),transparent 38%)}
.cooling-card:after{background:linear-gradient(110deg,rgba(0,172,237,.075),transparent 38%)}
.solution-card>*{position:relative;z-index:1}

/* Slate, light and premium How It Works */
.section-dark{background:#edf3f5;color:var(--ink)}
.how-heading .kicker{color:#4f7d72}
.how-heading>p:last-child{color:var(--ink-soft)}
.step-card{background:#fff;border-color:rgba(52,77,92,.12);box-shadow:0 18px 46px rgba(34,56,68,.11)}
.step-card:hover{background:#fff;border-color:rgba(52,77,92,.22)}
.step-card:before{background:linear-gradient(90deg,var(--slate),var(--mint))}
.step-card:nth-child(2):before{background:linear-gradient(90deg,#55707f,#8fb6bc)}
.step-card:nth-child(3):before{background:linear-gradient(90deg,var(--slate-deep),var(--slate))}
.step-content h3{color:var(--ink)}
.step-content p{color:var(--ink-soft)}
.step-number{color:var(--slate)}
.step-icon{display:none}

/* Who we help, without repeating the logo strapline */
.philosophy-section{background:var(--slate-deep)}
.philosophy-section:before{background:radial-gradient(circle at 83% 22%,rgba(143,212,165,.17),transparent 34%),linear-gradient(125deg,rgba(255,255,255,.045),transparent 58%)}
.philosophy-layout{grid-template-columns:.78fr 1.22fr}
.sector-list{padding:46px 0 46px 58px;border-left:1px solid rgba(255,255,255,.16)}
.sector-list p{margin:0;font-size:clamp(24px,3vw,42px);line-height:1.35;letter-spacing:-.025em;color:rgba(255,255,255,.78)}
.sector-list p+p{margin-top:18px}
.sector-list span{color:var(--mint);padding:0 .18em}

/* Contact information cards are now one visual system */
.contact-assurance,.next-step-card{margin-top:28px;padding:26px 28px;border:1px solid rgba(52,77,92,.13);border-radius:20px;background:rgba(255,255,255,.82);box-shadow:0 16px 42px rgba(34,56,68,.08)}
.contact-assurance p,.next-step-card p,.next-step-card li{font-size:16px;line-height:1.58}
.next-step-card{margin-top:18px}
.contact-section{background:#eef3f4}
.contact-form{border-color:rgba(52,77,92,.12);box-shadow:0 24px 64px rgba(34,56,68,.13)}

/* Accurate fixed-header anchor placement */
html{scroll-padding-top:96px}
.section-anchor{scroll-margin-top:96px}

@media (max-width:900px){
  .brand{width:300px;height:56px}
  .philosophy-layout{grid-template-columns:1fr}
  .sector-list{padding:34px 0 0;border-left:0;border-top:1px solid rgba(255,255,255,.16)}
}
@media (max-width:700px){
  :root{--shell:min(100% - 28px,1180px)}
  .site-header{padding:8px 0}
  .nav-shell{min-height:58px}
  .brand{width:225px;height:43px}
  .hero-content{padding:150px 0 92px}
  .hero h1{font-size:clamp(52px,17vw,78px)}
  .hero-copy{font-size:19px}
  .hero-actions{align-items:flex-start;flex-direction:column;gap:18px}
  .solution-grid{grid-template-columns:1fr;gap:20px}
  .solution-card{padding:25px 22px}
  .solution-card-head{min-height:50px}
  .solution-card h3{font-size:40px}
  .solution-lead{font-size:17px}
  .how-heading{display:block}
  .how-heading .kicker{margin-bottom:18px}
  .steps{gap:16px}
  .step-card{min-height:0;padding:25px 22px}
  .sector-list p{font-size:25px}
  .contact-grid{grid-template-columns:1fr;gap:42px}
  .contact-assurance,.next-step-card{padding:22px}
  .form-row{grid-template-columns:1fr}
  .choice-row{grid-template-columns:1fr}
  html{scroll-padding-top:74px}
  .section-anchor{scroll-margin-top:74px}
}


/* Version 3.2 verified refinement, 6 August 2026 */
/* The final rules below deliberately override legacy styling. */
.heating-card{
  background:
    radial-gradient(circle at 0% 0%,rgba(207,31,43,.30) 0%,rgba(207,31,43,.14) 28%,transparent 58%),
    linear-gradient(135deg,rgba(207,31,43,.13) 0%,rgba(255,255,255,.96) 52%,rgba(207,31,43,.06) 100%);
  border-color:rgba(207,31,43,.24);
}
.cooling-card{
  background:
    radial-gradient(circle at 0% 0%,rgba(0,169,232,.30) 0%,rgba(0,169,232,.14) 28%,transparent 58%),
    linear-gradient(135deg,rgba(0,169,232,.13) 0%,rgba(255,255,255,.96) 52%,rgba(0,169,232,.06) 100%);
  border-color:rgba(0,169,232,.24);
}
.heating-card:after{background:linear-gradient(115deg,rgba(207,31,43,.11),transparent 48%)}
.cooling-card:after{background:linear-gradient(115deg,rgba(0,169,232,.11),transparent 48%)}

.contact-assurance,.next-step-card{
  display:block;
  width:100%;
  margin:20px 0 0;
  padding:26px 28px;
  border:1px solid rgba(52,77,92,.16);
  border-radius:20px;
  background:#fff;
  box-shadow:0 14px 38px rgba(34,56,68,.08);
}
.contact-assurance p,.next-step-card p,.next-step-card li{
  font-size:16px;
  line-height:1.58;
}
.contact-assurance p{margin:0;color:var(--ink-soft)}
.next-step-card{margin-top:20px}

@media (max-width:700px){
  .heating-card,.cooling-card{background-position:center;background-size:cover}
  .solution-card{border-radius:22px}
  .contact-assurance,.next-step-card{padding:22px 20px;border-radius:18px}
  .sector-list p{font-size:22px;line-height:1.45}
  .site-nav{background:var(--slate-deep)}
}


/* Version 3.4: consistent slate brand treatment, simplified audience message */
:root{--slate:#294452;--slate-deep:#203946;--mint:#8fd4a5}
.philosophy-section{background:linear-gradient(135deg,var(--slate) 0%,#355662 100%);color:#fff}
.philosophy-section:before{background:radial-gradient(circle at 86% 16%,rgba(143,212,165,.14),transparent 34%),linear-gradient(125deg,rgba(255,255,255,.035),transparent 58%)}
.philosophy-intro h2{max-width:650px}
.philosophy-statement{border-left-color:rgba(255,255,255,.2)}
.philosophy-statement p{font-size:clamp(42px,5.3vw,76px);color:rgba(255,255,255,.72)}
.philosophy-statement strong{color:var(--mint)}
.site-footer{background:var(--slate-deep)}
.site-nav{--mobile-nav-bg:var(--slate-deep)}
@media (max-width:900px){.site-nav{background:var(--slate-deep)}}

/* Version 4.2: exact anchor landing and optically locked wordmark */
html{scroll-padding-top:80px}
.section-anchor{scroll-margin-top:80px}

.why-section{
  position:relative;
  overflow:hidden;
  padding:88px 0 96px;
  background:linear-gradient(135deg,var(--slate) 0%,#355662 100%);
  color:#fff;
}
.why-section:before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:radial-gradient(circle at 88% 10%,rgba(143,212,165,.15),transparent 34%);
}
.why-section .shell{position:relative}
.why-heading{max-width:760px}
.why-heading h2{color:#fff}
.why-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin-top:52px;
}
.why-card{
  min-height:260px;
  padding:30px 32px 32px;
  border:1px solid rgba(255,255,255,.16);
  border-radius:22px;
  background:rgba(255,255,255,.055);
  backdrop-filter:blur(2px);
  transition:transform .22s ease,background .22s ease,border-color .22s ease;
}
.why-card:hover{
  transform:translateY(-5px);
  background:rgba(255,255,255,.085);
  border-color:rgba(143,212,165,.42);
}
.why-number{
  margin:0 0 34px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  color:var(--mint);
}
.why-card h3{
  margin:0 0 15px;
  max-width:520px;
  font-size:clamp(25px,2.4vw,35px);
  line-height:1.08;
  letter-spacing:-.035em;
  color:#fff;
}
.why-card>p:last-child{
  margin:0;
  max-width:570px;
  font-size:17px;
  line-height:1.62;
  color:rgba(255,255,255,.72);
}

/* The contact details block was intentionally removed in v4.1. */
.contact-details{display:none}

@media (max-width:900px){
  html{scroll-padding-top:80px}
  .section-anchor{scroll-margin-top:80px}
  .why-grid{grid-template-columns:1fr}
}
@media (max-width:700px){
  html{scroll-padding-top:80px}
  .section-anchor{scroll-margin-top:80px}
  .why-section{padding:68px 0 74px}
  .why-grid{margin-top:36px;gap:14px}
  .why-card{min-height:0;padding:24px 22px 26px;border-radius:18px}
  .why-number{margin-bottom:24px}
  .why-card h3{font-size:28px}
  .why-card>p:last-child{font-size:16px}
}


/* Version 4.3.1: direct enquiry form and mobile stability fixes only */
.form-trap{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;overflow:hidden!important}
.form-status{min-height:1.4em;margin:12px 0 0;text-align:center;font-size:13px;line-height:1.4;color:var(--ink-soft)}
.form-status:empty{min-height:0;margin-top:0}
.form-status.success{color:#21683b}
.form-status.error{color:#a01f27}
.form-submit:disabled{cursor:wait;opacity:.72;transform:none;box-shadow:none}

@media (max-width:900px){
  html,body{max-width:100%;overflow-x:clip}
  body.nav-open{overflow:hidden;overscroll-behavior:none}
  .nav-shell,.shell,.hero-content,.contact-grid,.contact-form,.form-row,.choice-row{min-width:0}
  .site-nav{
    inset:0;
    width:100%;
    max-width:100vw;
    height:100dvh;
    overflow-y:auto;
    overflow-x:hidden;
    visibility:hidden;
    pointer-events:none;
    transform:translate3d(100%,0,0);
    will-change:transform;
  }
  .site-nav.open{
    visibility:visible;
    pointer-events:auto;
    transform:translate3d(0,0,0);
  }
  .nav-toggle{flex:0 0 44px}
  .brand{max-width:calc(100vw - 90px)}
  .reveal{max-width:100%}
  .contact-form input,.contact-form textarea,.choice span{max-width:100%}
}

@media (max-width:700px){
  .site-nav{padding:90px 24px 42px}
  .site-nav a{max-width:100%;overflow-wrap:anywhere}
  .hero h1,.section h2,.solution-card h3,.why-card h3{overflow-wrap:break-word}
  .solution-card,.step-card,.why-card,.contact-assurance,.next-step-card,.contact-form{max-width:100%}
  .saving-chip{max-width:100%;white-space:normal;text-align:center}
  .contact-form{overflow:hidden}
}

/* Version 4.3.2: keep the mobile header and menu control inside the viewport */
@media (max-width:900px){
  html,body{width:100%;max-width:100%;overflow-x:hidden}
  .site-header{
    left:0;
    right:0;
    width:100%;
    max-width:100vw;
    overflow:hidden;
  }
  .nav-shell{
    width:auto;
    max-width:none;
    margin-inline:20px;
    min-width:0;
  }
  .brand{
    min-width:0;
    max-width:calc(100% - 58px);
  }
  .nav-toggle{
    position:relative;
    right:auto;
    margin-left:auto;
    flex:0 0 44px;
    width:44px;
    min-width:44px;
    max-width:44px;
  }
}

@media (max-width:700px){
  .nav-shell{margin-inline:14px}
  .brand{max-width:calc(100% - 54px)}
}


/* CarbonWize footer refinement */
.site-footer{
  padding:48px 0 22px;
  background:var(--slate-deep);
  color:#fff;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr;
  gap:50px;
  align-items:start;
}

.footer-brand{
  width:auto;
  height:auto;
}

.footer-brand .brand{
  width:260px;
  height:48px;
}

.footer-brand p{
  margin:18px 0 0;
  max-width:300px;
  color:rgba(255,255,255,.65);
  line-height:1.55;
  font-size:15px;
}

.footer-contact,
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}

.footer-contact h3,
.footer-links h3{
  margin:0 0 10px;
  font-size:14px;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--mint);
}

.footer-contact a,
.footer-links button{
  color:rgba(255,255,255,.8);
  text-decoration:none;
  font-size:15px;
}

.footer-links button{
  text-align:left;
}

.footer-bottom{
  margin-top:34px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
}

.footer-bottom p{
  margin:0;
  color:rgba(255,255,255,.55);
  font-size:13px;
}

@media (max-width:900px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }

  .footer-bottom{
    margin-top:28px;
  }
}