:root{--navy:#0b2342;--ink:#142b46;--muted:#566779;--red:#db2535;--paper:#f4f6f8;--line:#dce2e8;--white:#fff;--blue:#c8dcf3;--max:1280px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;color:var(--ink);background:white;font-family:Arial,Helvetica,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:5px}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #cf2536}img,video{max-width:100%;display:block}img{height:auto}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{line-height:1.08;letter-spacing:-.04em}h1{font-size:clamp(38px,4.9vw,72px);font-weight:600;margin-bottom:24px}h2{font-size:clamp(32px,3.25vw,48px);font-weight:600;margin-bottom:22px}h3{font-size:24px;font-weight:600;letter-spacing:-.025em}p{margin-bottom:22px}.wrap{max-width:var(--max);margin:auto;padding:0 40px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;line-height:1.6;text-transform:uppercase;color:var(--red);margin-bottom:20px}.lead{font-size:20px;line-height:1.6;max-width:700px;color:var(--muted)}.small{font-size:13px;color:var(--muted)}.skip{position:absolute;left:-9999px;background:white;padding:15px;z-index:99}.skip:focus{left:10px;top:10px}.concept{font-size:12px;background:#edf1f6;padding:7px 24px;text-align:center;letter-spacing:.02em}.concept a{margin-left:12px;font-weight:700}.site-header{position:sticky;top:0;z-index:30;background:#fffffffa;border-bottom:1px solid var(--line)}.head-inner{display:flex;align-items:center;gap:25px;min-height:96px}.brand{display:flex;align-items:center;text-decoration:none;flex-shrink:0}.brand img{width:72px;height:72px;object-fit:contain}.brand span{font-size:11px;letter-spacing:.13em;max-width:110px;line-height:1.5;padding-left:10px;border-left:1px solid var(--line);margin-left:10px;font-weight:700}.nav{margin-left:auto;display:flex;align-items:center;gap:24px}.nav>a,.nav summary{font-size:13px;font-weight:600;text-decoration:none;white-space:nowrap;cursor:pointer}.nav details{position:relative}.nav summary{list-style:none}.nav summary::after{content:'⌄';margin-left:7px}.nav details[open] .dropdown{display:grid}.dropdown{position:absolute;top:35px;left:-22px;width:295px;display:none;background:white;border:1px solid var(--line);box-shadow:0 15px 30px #0b234215;padding:16px;gap:4px}.dropdown a{font-size:14px;padding:8px;text-decoration:none}.dropdown a:hover{background:var(--paper)}.nav .nav-cta{padding:12px 17px;background:var(--navy);color:white}.menu-btn{display:none;background:none;border:1px solid var(--line);padding:8px 12px;margin-left:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:51px;padding:13px 23px;background:var(--red);color:white;text-decoration:none;font-size:14px;font-weight:700;border:1px solid var(--red);border-radius:2px;line-height:1.5}.btn:hover{background:#b91b2b}.btn.light{background:white;color:var(--navy);border-color:white}.btn.outline{background:transparent;border-color:#8190a4;color:inherit}.btn.outline:hover{background:#ffffff10}.actions{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin:28px 0 0}.text-link{font-size:14px;font-weight:700;text-decoration:none;border-bottom:1px solid;padding-bottom:5px}.hero{background:var(--navy);color:white;position:relative;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;padding-top:68px;padding-bottom:58px}.hero 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.eyebrow{color:#ff8c94}.section-head{display:flex;justify-content:space-between;align-items:end;gap:55px;margin-bottom:38px}.section-head h2{margin-bottom:0;max-width:660px}.section-head p{max-width:380px;color:var(--muted);margin:0}.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.service-card{border:1px solid var(--line);text-decoration:none;display:flex;flex-direction:column;background:#fff;transition:transform .2s}.service-card:hover{transform:translateY(-5px)}.service-card figure{margin:0;aspect-ratio:1.3;overflow:hidden}.service-card img{width:100%;height:100%;object-fit:cover}.service-card .card-body{padding:25px 24px;display:flex;flex-direction:column;flex:1}.service-card h3{font-size:22px}.service-card p{font-size:14px;color:var(--muted);margin-bottom:25px}.service-card .arrow{margin-top:auto;font-weight:700;font-size:13px;display:flex;justify-content:space-between;color:var(--red)}.service-extra{display:flex;gap:28px;flex-wrap:wrap;margin-top:24px;font-size:14px}.split{display:grid;grid-template-columns:1fr 1.05fr;gap:60px;align-items:center}.split figure{margin:0}.split img{width:100%}.split figcaption{font-size:12px;color:var(--muted);margin-top:10px}.section.dark figcaption{color:#bacada}.checklist{padding:0;list-style:none}.checklist li{position:relative;padding:12px 0 12px 26px;border-bottom:1px solid #ffffff25;font-size:15px}.checklist li::before{content:'+';position:absolute;left:0;color:#f36470}.process{display:grid;grid-template-columns:repeat(4,1fr);gap:35px;margin-top:44px}.process .number{font-size:14px;color:var(--red);font-weight:700;border-top:2px solid var(--red);padding-top:12px;margin-bottom:25px}.process h3{font-size:22px}.process p{font-size:15px;color:var(--muted)}.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:35px 0 24px}.plan{padding:30px;border:1px solid var(--line);background:white}.plan.focus{border:2px solid var(--navy);padding:29px}.plan .label{font-size:11px;text-transform:uppercase;letter-spacing:.1em;font-weight:700;color:var(--red);min-height:20px}.plan p{font-size:15px;color:var(--muted)}.plan ul{padding-left:20px;font-size:14px}.plan li{margin:10px 0}.plan strong{font-size:14px}.sector-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.sector{display:block;text-decoration:none}.sector figure{margin:0 0 20px;aspect-ratio:1.3;overflow:hidden}.sector img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.sector:hover img{transform:scale(1.03)}.sector h3{margin-bottom:10px}.sector p{font-size:15px;color:var(--muted)}.image-note{font-size:11px;color:var(--muted);margin-top:18px}.gallery{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:20px;margin:35px 0}.gallery figure{margin:0}.gallery img{width:100%;height:340px;object-fit:cover}.gallery figcaption{font-size:12px;color:var(--muted);margin-top:10px}.coverage{display:grid;grid-template-columns:1.1fr 1fr;gap:80px;align-items:start}.towns{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}.towns a,.towns span{padding:17px 0;border-bottom:1px solid var(--line);font-size:15px;text-decoration:none}.towns a::after{content:' ↗';color:var(--red)}.faq-list details{border-bottom:1px solid var(--line);padding:20px 0}.faq-list summary{font-weight:600;font-size:17px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:30px}.faq-list summary::after{content:'+';color:var(--red);font-size:22px}.faq-list details[open] summary::after{content:'−'}.faq-list details p{margin:16px 0 0;color:var(--muted);max-width:800px}.cta-band{padding:60px 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input{width:18px;height:18px;min-height:0;margin:0}.enquiry-result{margin-top:25px;border-top:1px solid var(--line);padding-top:25px}.enquiry-result textarea{width:100%;min-height:300px;font:14px/1.6 Arial;padding:15px}.contact-meta{display:flex;gap:25px;flex-wrap:wrap;font-size:16px;margin-top:30px}.contact-meta a{font-weight:700}.illustrative{font-size:11px!important;line-height:1.5!important}.brief{max-width:1000px;padding-top:55px;padding-bottom:70px}.brief h1{font-size:50px}.brief h2{font-size:32px;margin-top:60px;scroll-margin-top:120px}.brief h3{font-size:23px;margin-top:32px}.brief li{margin-bottom:10px}.brief table{width:100%;border-collapse:collapse;font-size:13px;margin:24px 0}.brief td,.brief th{border:1px solid var(--line);padding:12px;text-align:left;vertical-align:top;overflow-wrap:anywhere}.brief th{background:var(--navy);color:white}.brief tr:nth-child(even){background:var(--paper)}.table-scroll{overflow-x:auto}.brief .toc{display:grid;grid-template-columns:1fr 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@media(min-width:1500px){.hero-grid{min-height:610px}.video-box{margin-right:-30px}}
@media(max-width:1100px){.wrap{padding:0 28px}.nav{gap:17px}.brand span{display:none}.hero-grid{gap:30px}.services-grid{grid-template-columns:repeat(2,1fr)}.section{padding:70px 0}.page-body{gap:45px;grid-template-columns:minmax(0,1fr) 230px}.split{gap:35px}.footer-grid{gap:25px}.hero h1{font-size:52px}}
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@media(max-width:540px){.wrap{padding:0 22px}.concept{font-size:10px;padding:7px 10px}.concept a{margin-left:5px}.hero h1{font-size:43px}.hero .lead{font-size:17px}.hero-bottom{grid-template-columns:1fr;gap:13px}.hero-bottom>div{display:flex;justify-content:space-between;gap:10px}.hero-bottom span{margin:0}.hero-grid{padding-top:35px}.section{padding:55px 0}.services-grid{grid-template-columns:1fr}.service-card{display:grid;grid-template-columns:38% 62%}.service-card figure{aspect-ratio:auto;min-height:235px}.service-card .card-body{padding:23px 18px}.service-card h3{font-size:21px}.service-card p{font-size:13px}.process{gap:24px}.process h3{font-size:20px}.process p{font-size:14px}.sector{display:block}.sector figure{margin-bottom:20px}.gallery{grid-template-columns:1fr}.gallery figure:first-child{grid-column:auto}.gallery img{height:350px}.form-shell{padding:22px 18px}.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.choices{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer{padding-bottom:70px}.mobile-call{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:25;background:white;box-shadow:0 -3px 12px #0002;justify-content:space-around;padding:12px 15px;font-size:12px;font-weight:700}.mobile-call a{text-decoration:none}.mobile-call a:last-child{color:var(--red)}.page-hero h1{font-size:38px}.page-hero .lead{font-size:17px}.article-section h2{font-size:27px}.article-section p,.article-section li{font-size:16px}.brief h1{font-size:34px}.contact-meta{gap:15px}.btn{padding:13px 18px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.site-header,.concept,.footer,.mobile-call,.print-btn,.cta-band{display:none!important}body{font-size:10pt;color:black}.wrap{padding:0;max-width:none}.brief{padding:0;max-width:none}.brief h1{font-size:26pt}.brief h2{font-size:18pt;page-break-after:avoid;margin-top:25pt}.brief h3{font-size:13pt;page-break-after:avoid}.brief table{font-size:8pt;min-width:0!important}.brief tr{break-inside:avoid}.brief .toc{display:block;background:white}.brief .toc a{display:block}.table-scroll{overflow:visible}.brief a{color:black}.brief .sources{break-before:page}@page{size:A4;margin:18mm}}

/* Site footage and manufacturer-trained repair service */
.training-list{display:flex;flex-wrap:wrap;gap:12px;list-style:none;padding:0;margin:28px 0}.training-list li{font-weight:700;border:1px solid var(--line);padding:9px 17px;background:var(--paper);font-size:16px;letter-spacing:.01em}
.repair-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:60px;align-items:center}.repair-media{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}.repair-film,.repair-media figure{margin:0}.repair-film video{width:100%;height:auto;aspect-ratio:276/486;object-fit:contain;background:#071a31}.repair-film figcaption{font-size:12px;line-height:1.55;color:var(--muted);padding-top:12px}.repair-film figcaption span{font-size:11px}.repair-media .portrait-photo{margin-top:56px}.repair-media .portrait-photo img{width:100%;height:auto;aspect-ratio:3/4;object-fit:contain}.repair-media figcaption{font-size:12px;color:var(--muted);margin-top:10px}.repair-watch{display:grid;grid-template-columns:1fr 276px;gap:90px;max-width:1050px;align-items:center}.page-hero .portrait-photo img{aspect-ratio:3/4;max-height:580px;object-fit:contain}.page-hero figure:has(img[src$="office-vents.webp"]) img{aspect-ratio:3/2;object-fit:contain}.sector img[src$="office-vents.webp"]{object-position:center top}
@media(max-width:1000px){.repair-layout{gap:30px}.repair-watch{gap:40px}.repair-media{gap:12px}}
@media(max-width:700px){.repair-layout,.repair-watch{grid-template-columns:1fr;gap:32px}.repair-media{max-width:520px;margin:auto}.repair-watch .repair-film{max-width:276px;margin:auto}.repair-feature h2{font-size:34px}.repair-media .portrait-photo{margin-top:40px}.repair-media figcaption{font-size:11px}}

@media(max-width:700px){.repair-media{grid-template-columns:minmax(0,276px);justify-content:center;gap:28px}.repair-media .portrait-photo{margin-top:0}}