:root{--navy:#102c35;--ink:#172e36;--muted:#53666b;--lime:#d7f36a;--paper:#f5f6f1;--line:#dce3dd;--white:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.6;background:white}a{color:inherit;text-underline-offset:4px}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #4b858f;outline-offset:4px}button{cursor:pointer}img{max-width:100%;height:auto}.wrap{width:min(1320px,calc(100% - 96px));margin-inline:auto}.topline{background:var(--navy);color:white;font-size:10px;font-weight:700;letter-spacing:1.5px}.topline .wrap{display:flex;justify-content:space-between;padding:9px 0}.topline a{text-decoration:none;letter-spacing:.4px}.header{background:#fff;position:sticky;top:0;z-index:20;border-bottom:1px solid #edf0ea}.nav{display:flex;align-items:center;justify-content:space-between;min-height:99px;gap:30px}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;line-height:1.04;letter-spacing:1.5px;font-size:19px;font-weight:900}.brand svg{width:37px;height:44px}.brand>span>span{display:block}.brand-dot{color:#82a822}.nav nav{display:flex;align-items:center;gap:28px;font-size:13px;font-weight:600}.nav nav>a{text-decoration:none}.nav nav>a:hover{color:#557519}.button{display:inline-flex;align-items:center;justify-content:center;gap:30px;padding:17px 23px;border:1px solid var(--lime);background:var(--lime);color:var(--ink);border-radius:5px;font-weight:700;font-size:13px;text-decoration:none;line-height:1.5;transition:transform .15s,background .15s}.button:hover{background:#c7e858;transform:translateY(-2px)}.button.small{padding:13px 18px;gap:14px}.button.secondary{background:transparent;border-color:#b8c6bd}.button.secondary:hover{background:#eef2e7}.menu-toggle{display:none}.hero{background:var(--paper);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1fr 1.04fr;min-height:650px;align-items:center;gap:25px}.hero-copy{padding:60px 0}.eyebrow{font-size:10px;letter-spacing:1.6px;font-weight:800;margin:0 0 23px;text-transform:uppercase;display:flex;align-items:center;gap:9px}.eyebrow>span{height:7px;width:7px;background:#6b8e1b;border-radius:50%}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.08;letter-spacing:-1.6px}h1{font-size:clamp(52px,5.6vw,82px);font-weight:600;margin-bottom:25px}h1 em{font-style:normal;color:#6d862e}h2{font-size:clamp(32px,3.2vw,46px);font-weight:500;margin-bottom:23px}h3{font-size:23px;letter-spacing:-.5px;font-weight:500}p{color:var(--muted)}.hero-lead{font-size:16px;line-height:1.8;max-width:460px}.actions{display:flex;align-items:center;gap:26px;margin-top:31px}.text-link{font-size:13px;font-weight:700;text-decoration:none;display:inline-block}.text-link:hover{text-decoration:underline}.hero-points{display:flex;gap:23px;margin-top:38px;font-size:11px;color:#53645c}.hero-art{position:relative;align-self:stretch;margin-right:-48px;display:flex;align-items:center;min-height:500px}.hero-art img{width:100%;height:100%;object-fit:cover}.live-pill{position:absolute;top:45px;left:30px;border:1px solid #e2e7df;background:#fffef2ed;box-shadow:0 8px 25px #17322b09;font-size:10px;padding:11px 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h2{margin-bottom:0}.section-heading>p{font-size:14px;max-width:360px;margin-bottom:3px}.grid{display:grid;gap:20px;grid-template-columns:repeat(3,minmax(0,1fr))}.service-grid{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:28px}.card{padding:28px 24px 25px;border:1px solid var(--line);border-radius:7px;text-decoration:none;position:relative;display:flex;flex-direction:column;min-height:265px;background:white;transition:background .15s,border-color .15s}.card:hover{background:#f5f8ee;border-color:#a9bc9b}.card-tag{font-size:9px;text-transform:uppercase;letter-spacing:1.3px;color:#61715e;font-weight:700;display:block;margin-bottom:25px}.card h3{margin-bottom:16px}.card p{font-size:13px;margin-bottom:28px}.arrow{font-size:23px;line-height:1;margin-top:auto}.soft{background:var(--paper)}.price-card{border:1px solid #ccd5c5;background:white;border-radius:8px;padding:31px}.price-card:nth-child(2){border-top:4px solid #7f973d;padding-top:28px}.price-card h3{min-height:52px;max-width:230px}.price-card .price{font-size:40px;line-height:1.2;color:var(--ink);font-weight:500;letter-spacing:-1.5px;margin-bottom:15px}.price small{font-size:9px;letter-spacing:0}.price-card>p:not(.price){font-size:12px}.price-card ul{padding-left:17px;font-size:12px;color:var(--muted);line-height:2.2;margin-block:23px}.price-card .button{width:100%;font-size:12px;gap:15px}.price-note{font-size:11px;max-width:870px;margin:23px 0 0}.process{display:grid;grid-template-columns:1fr 1fr;gap:100px}.process>div>p:not(.eyebrow){max-width:380px;font-size:14px}.process ol{list-style:none;padding:0;margin:0}.process li{display:flex;gap:25px;padding:23px 0;border-top:1px solid var(--line)}.process li>span{font-size:11px;color:#7c8f65}.process h3{font-size:21px;margin-bottom:8px}.process li p{font-size:13px;margin-bottom:0}.dark{background:var(--navy);color:white}.dark p{color:#b7c9c9}.dark .eyebrow{color:var(--lime)}.contact-layout{display:grid;grid-template-columns:.9fr 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small{display:block;font-size:10px;color:var(--muted);margin-top:15px;line-height:1.6}.quote-form .form-error{padding:15px;background:#fff0ed;color:#932b20;border:1px solid #d38f83;font-size:13px;margin-bottom:20px}.trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.page-hero{padding-top:32px;padding-bottom:55px;border-bottom:1px solid var(--line)}.breadcrumbs{display:flex;gap:12px;font-size:11px;color:var(--muted);margin-bottom:47px;flex-wrap:wrap}.breadcrumbs a{text-decoration:none}.page-hero h1{max-width:980px;font-size:clamp(38px,4.5vw,64px);margin-bottom:22px}.page-hero>p:last-child{font-size:17px;max-width:770px;margin-bottom:0}.content-section{padding-top:55px}.prose{max-width:770px;font-size:16px;line-height:1.85}.prose h2{font-size:28px;letter-spacing:-.7px;line-height:1.2;margin-top:34px;margin-bottom:17px}.prose>h2:first-child,.prose section:first-child h2{margin-top:0}.prose li{margin-block:9px;color:var(--muted)}.prose section{margin-bottom:34px}.article-layout{display:grid;grid-template-columns:1fr 330px;gap:90px;align-items:start}.help-card{border-radius:8px;background:var(--paper);padding:30px;position:sticky;top:125px}.help-card h2{font-size:30px;letter-spacing:-.7px}.help-card p{font-size:13px}.help-card .text-link{margin-top:20px;display:block}.help-card .button{gap:12px;width:100%;margin-top:12px}.directory-controls{display:flex;gap:20px;align-items:center;margin-bottom:35px}.directory-controls label{font-size:13px;font-weight:700;white-space:nowrap}.directory-controls input{max-width:430px;margin:0}.directory-controls span{font-size:12px}.topic-group{margin-bottom:60px}.topic-group>h2{font-size:33px}.guide-grid .card{min-height:235px}.guide-grid h3{font-size:21px}.directory-grid{columns:3;column-gap:45px}.directory-grid section{break-inside:avoid;margin-bottom:35px}.directory-grid h2{font-size:24px}.directory-grid ul{padding-left:17px;font-size:13px}.directory-grid li{margin-bottom:10px}.cta-band{background:#eaf0df;padding-block:55px}.cta-band .wrap{display:flex;justify-content:space-between;gap:50px;align-items:center}.cta-band h2{font-size:32px;max-width:690px;margin:0}.cta-band .eyebrow{margin-bottom:15px}.cta-band .button{flex-shrink:0}footer{background:#0d252e;color:#dbe6e5;padding-top:60px;font-size:12px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:45px}.footer-brand{font-weight:700;letter-spacing:1.2px;font-size:20px;text-decoration:none}.footer-grid p{color:#a2b9be;margin-top:20px}.footer-grid h2{font-size:12px;letter-spacing:0;margin-bottom:20px;color:#b0c5c8;font-weight:500}.footer-grid>div>a:not(.footer-brand){display:block;margin-bottom:11px;text-decoration:none}.footer-grid a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid #2b4148;padding-block:20px;display:flex;justify-content:space-between;color:#9cb3b8;font-size:10px}.footer-bottom>div{display:flex;gap:25px}.skip{position:fixed;top:-100px;left:20px;z-index:100;background:var(--lime);padding:15px}.skip:focus{top:10px}[hidden]{display:none!important}@media(min-width:1500px){.hero-art{margin-right:0}}@media(max-width:1100px){.wrap{width:calc(100% - 48px)}.nav nav{gap:17px;font-size:11px}.hero-grid{min-height:570px}.hero-art{margin-right:-24px}.actions{gap:15px;align-items:start;flex-direction:column}.hero-points{flex-direction:column;gap:5px;margin-top:25px}.service-grid{grid-template-columns:repeat(2,1fr)}.contact-layout,.article-layout{gap:40px}.price-card{padding:24px}.price-card:nth-child(2){padding-top:21px}.process{gap:45px}.hero h1{font-size:62px}.directory-grid{columns:2}}@media(max-width:800px){.wrap{width:calc(100% - 36px)}.topline .wrap{font-size:8px}.topline a{font-size:9px}.nav{min-height:80px}.brand{font-size:16px}.brand svg{width:31px}.menu-toggle{display:block;background:transparent;border:1px solid var(--line);padding:8px 12px;border-radius:4px;font-size:12px}.nav nav{display:none;position:absolute;left:0;right:0;top:80px;background:white;border-bottom:1px solid var(--line);padding:25px;box-shadow:0 15px 20px #0d252e10;align-items:stretch;font-size:14px;flex-direction:column}.nav nav.is-open{display:flex}.hero-grid{grid-template-columns:1fr;gap:0}.hero-copy{padding:43px 0 30px}.hero h1{font-size:65px}.hero-lead{max-width:520px}.actions{flex-direction:row;align-items:center;gap:22px}.hero-points{flex-direction:row;gap:20px;font-size:10px}.hero-art{min-height:360px;max-height:430px;margin:0 -18px}.hero-art img{object-position:center 62%}.live-pill{top:18px;left:22px}.art-caption{bottom:20px;right:20px;padding:17px;min-width:205px}.trust-strip .wrap{flex-wrap:wrap;justify-content:center;padding-block:22px;gap:12px 20px}.trust-strip span{width:100%;text-align:center}.trust-strip strong{font-size:10px}.section{padding-block:55px}.section-heading{display:block}.section-heading>p{margin-top:25px;max-width:500px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.prices{grid-template-columns:1fr}.price-card h3{min-height:0;max-width:none}.price-card .button{max-width:350px}.process,.contact-layout{grid-template-columns:1fr;gap:40px}.process>div>p:not(.eyebrow){max-width:520px}.article-layout{grid-template-columns:1fr}.help-card{position:static;max-width:500px}.quote-form{padding:26px}.dark .quote-form{padding:24px}.page-hero{padding-top:24px;padding-bottom:36px}.page-hero h1{font-size:45px}.breadcrumbs{margin-bottom:34px}.cta-band .wrap{display:block}.cta-band .button{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:1/-1}.directory-controls{flex-wrap:wrap;gap:10px}.directory-controls input{max-width:100%}.directory-grid{columns:1}}@media(max-width:480px){.topline .wrap>span{font-size:7px;letter-spacing:.6px}.hero h1{font-size:57px}.hero-lead{font-size:14px}.actions{align-items:start;flex-direction:column;gap:18px}.hero-points{flex-direction:column;gap:5px}.hero-art{min-height:325px}.art-caption{min-width:185px}.art-caption strong{font-size:17px}.grid,.service-grid{grid-template-columns:1fr}.card{min-height:210px}.form-grid{grid-template-columns:1fr}.form-grid label{margin-bottom:15px}.footer-grid{gap:22px}.footer-bottom{display:block}.footer-bottom>div{margin-top:15px}.page-hero h1{font-size:36px}.directory-controls label{width:100%}.trust-strip .wrap{gap:10px}.trust-strip strong{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Generated photography: responsive delivery, reserved image space and no text baked into photos. */
.hero-art>picture{position:absolute;inset:0;display:block}
.hero-art>picture img{width:100%;height:100%;object-fit:cover;object-position:60% 15%}
.card-body{display:flex;flex:1;flex-direction:column}
.card.has-media{padding:0;overflow:hidden}
.card.has-media>picture{display:block;aspect-ratio:3/2;overflow:hidden;background:#e6e9de}
.card.has-media>picture img{display:block;width:100%;height:100%;object-fit:cover}
.has-media .card-body{padding:25px 24px}
.article-media{margin:0 0 36px}
.article-media picture{display:block;aspect-ratio:3/2;overflow:hidden;border-radius:8px;background:#e6e9de}
.article-media img{display:block;width:100%;height:100%;object-fit:cover}
.article-media figcaption{margin-top:8px;font-size:10px;color:var(--muted);line-height:1.5}
@media(max-width:800px){.hero-art>picture img{object-position:50% 0%}}

.licence-details{border-top:1px solid #2b4148;padding-block:18px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:11px;color:#b7c9c9}.licence-details p{margin:0;color:inherit}.licence-details strong{font-weight:600}.licence-details a{white-space:nowrap}@media(max-width:600px){.licence-details{display:block}.licence-details a{display:inline-block;margin-top:10px}}

/* Genuine product packshots are contained, never cropped into invented installations. */
.hero-art.product-hero{padding:42px 28px;display:flex;flex-direction:column;justify-content:center;align-items:stretch;gap:18px;background:#e8eee0}
.product-hero>.eyebrow{margin-bottom:0;font-size:9px}
.product-feature{display:grid;grid-template-columns:46% minmax(0,1fr);align-items:center;gap:18px;background:white;border:1px solid #d9e1d1;border-radius:9px;padding:17px;text-decoration:none;min-height:220px}
.product-feature picture{display:block;height:185px}
.product-feature img{display:block;width:100%;height:100%;object-fit:contain}
.product-feature strong{display:block;font-size:20px;font-weight:500;line-height:1.2;letter-spacing:-.5px;margin:7px 0 10px}
.product-brand{font-size:10px;font-weight:800;letter-spacing:1.3px;text-transform:uppercase;color:#314a39}
.product-feature small{display:block;font-size:10px;line-height:1.5;overflow-wrap:anywhere;color:var(--muted);margin-bottom:13px}
.product-feature .text-link{font-size:11px}
.product-note{font-size:10px;line-height:1.6;margin:0}
.card.has-media>picture{background:white}
.card.has-media>picture img{object-fit:contain;padding:13px;background:white}
.article-media picture{background:white;border:1px solid var(--line)}
.article-media img{object-fit:contain;padding:24px;background:white}
@media(max-width:1100px){.product-feature{gap:12px;padding:13px;min-height:200px}.product-feature strong{font-size:18px}.product-feature picture{height:160px}}
@media(max-width:800px){.hero-art.product-hero{max-height:none;min-height:0;padding:30px 18px}.product-feature{min-height:180px;grid-template-columns:40% minmax(0,1fr)}.product-feature picture{height:155px}}

/* Helpful reference content: semantic tables, short sections and clear source trails. */
.editorial-content{font-size:15px;line-height:1.8;max-width:100%}
.editorial-content h2{font-size:27px;letter-spacing:-.6px;line-height:1.25;margin:32px 0 16px}
.editorial-content p{margin-bottom:18px}
.content-meta{font-size:11px;color:#647575;border-bottom:1px solid var(--line);padding-bottom:14px;margin-top:0}
.contents{padding:20px 24px;border:1px solid var(--line);border-radius:7px;background:#f7f9f2;margin:22px 0 34px;font-size:13px}
.contents strong{font-size:12px}.contents ul{margin-bottom:0;padding-left:19px}.contents li{margin:5px 0}
.editorial-section{scroll-margin-top:125px;margin-bottom:30px}
.editorial-content li{margin-bottom:10px;color:var(--muted)}
.table-scroll{max-width:100%;overflow-x:auto;margin-block:18px;border:1px solid var(--line);border-radius:6px}
.table-scroll table{width:100%;border-collapse:collapse;min-width:480px;font-size:13px;line-height:1.6;text-align:left}
.table-scroll caption{text-align:left;padding:12px 16px;font-size:11px;background:#f8faf4;color:var(--muted)}
.table-scroll th,.table-scroll td{padding:14px 16px;vertical-align:top;border-top:1px solid var(--line)}
.table-scroll thead th{background:#eef3e7;font-weight:700}.table-scroll tbody th{font-weight:600;min-width:125px}
.table-scroll td{color:var(--muted)}
.content-faq{padding:17px 0;border-bottom:1px solid var(--line)}
.content-faq summary{cursor:pointer;font-weight:600;line-height:1.5;color:var(--ink);padding-right:10px}
.content-faq p{margin:15px 0 0;font-size:14px}
.content-sources{margin-top:35px;padding:20px 24px;background:#f6f8f1;border-radius:7px}
.content-sources h2{font-size:20px;margin-top:0}.content-sources p,.content-sources li{font-size:11px;line-height:1.7;overflow-wrap:anywhere}
.editorial-policy-link{font-size:11px}.related-reading h2{font-size:23px}
.special-editorial{max-width:1000px;margin-top:55px;padding-top:35px;border-top:1px solid var(--line)}
.home-editorial{padding-top:10px}.home-editorial .editorial-content{max-width:1000px}
.storage-calculator{padding:24px;background:#f0f5e8;border:1px solid #d1dcc2;border-radius:7px}
.calculator-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.calculator-fields label{font-size:12px;font-weight:600}
.calculator-result{font-size:17px;color:var(--ink);font-weight:600;margin-top:22px}.storage-calculator small{font-size:11px}
@media(max-width:800px){.editorial-content h2{font-size:25px}.editorial-section{scroll-margin-top:100px}.calculator-fields{grid-template-columns:1fr}.special-editorial{margin-top:40px}.table-scroll table{font-size:12px}.content-sources{padding:19px}}

.article-media picture{max-height:280px;aspect-ratio:16/8}.editorial-content .editorial-section:first-of-type h2{margin-top:22px}

.article-layout>article,.article-layout>aside,.contact-layout>*{min-width:0}.editorial-content{overflow-wrap:anywhere}.table-scroll{width:100%}

.brand-lockup strong{display:block;font-size:21px;letter-spacing:.3px}.brand-lockup small{display:block;margin-top:8px;font-size:11px;font-weight:500;letter-spacing:.2px;color:var(--muted)}
.installation-hero{isolation:isolate;min-height:620px;background:#d8ded8}.installation-hero picture{position:absolute;inset:0;display:block;height:100%}.installation-hero img{display:block;object-fit:cover;object-position:50% 40%;height:100%;width:100%}.project-hero-caption{position:absolute;bottom:24px;left:24px;right:24px;padding:24px;background:#102c35ed;color:white;border-radius:6px}.project-hero-caption span{display:block;font-size:10px;letter-spacing:1.5px;color:var(--lime)}.project-hero-caption strong{display:block;font-size:22px;line-height:1.3;margin:9px 0 14px;font-weight:500}.project-hero-caption a{font-size:13px}
.hero-copy h1{font-size:clamp(48px,4.9vw,72px)}.project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin:28px 0}.project-card{margin:0;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:var(--paper)}.project-card>a{display:block;background:#e9ede6}.project-card picture{display:block;height:310px}.project-card img{display:block;width:100%;height:100%;object-fit:contain}.project-card figcaption{padding:18px;font-size:13px;line-height:1.6}.sales-panel{display:grid;grid-template-columns:1fr 1fr;gap:55px;align-items:start;padding:42px;background:var(--paper);border:1px solid var(--line);border-radius:10px;margin-bottom:45px}.sales-panel>div{min-width:0}.sales-panel h2{font-size:36px}.sales-panel p{font-size:14px}.sales-panel .sales-offer{font-size:23px;color:var(--ink);font-weight:600;line-height:1.3}.sales-benefits{padding-left:20px;color:var(--muted);font-size:13px;line-height:1.8}.sales-phone{font-size:24px;font-weight:600;text-decoration:none}.sales-panel .quote-form{border:1px solid var(--line);padding:27px}.form-details{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:0 0 20px;padding:15px 0}.form-details summary{cursor:pointer;font-size:12px;font-weight:600;line-height:1.5}.form-details[open] summary{margin-bottom:18px}.form-details label:last-child{margin-bottom:0}.technical-details{margin-top:35px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 0}.technical-details>summary{font-size:23px;font-weight:600;cursor:pointer;line-height:1.4}.technical-details[open]>summary{margin-bottom:30px}.mobile-lead-bar{display:none}
@media(max-width:1100px){.nav{min-height:85px}.menu-toggle{display:block;padding:10px 13px;border:1px solid var(--line);background:white;border-radius:4px;font-size:13px}.nav nav{display:none;position:absolute;top:85px;left:0;right:0;background:white;padding:25px 35px;box-shadow:0 12px 20px #102c3515;flex-direction:column;align-items:stretch;gap:20px}.nav nav.is-open{display:flex}.sales-panel{gap:30px;padding:28px}.sales-panel h2{font-size:30px}}
@media(max-width:800px){.hero-copy h1{font-size:clamp(42px,8.4vw,62px)}.installation-hero{min-height:480px;margin-right:0}.project-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.project-card picture{height:260px}.sales-panel{grid-template-columns:1fr;padding:24px;gap:20px}.sales-panel .quote-form{padding:23px}.mobile-lead-bar{position:fixed;bottom:0;left:0;right:0;z-index:30;display:grid;grid-template-columns:1fr 1fr;background:var(--navy);box-shadow:0 -4px 20px #102c3520;padding-bottom:env(safe-area-inset-bottom)}.mobile-lead-bar a{padding:17px 8px;text-align:center;font-size:12px;font-weight:700;text-decoration:none;color:white}.mobile-lead-bar a:last-child{background:var(--lime);color:var(--ink)}body{padding-bottom:58px}.contact-layout{gap:30px}.project-hero-caption{left:16px;right:16px;bottom:16px}}
@media(max-width:480px){.project-grid{grid-template-columns:1fr}.project-card picture{height:310px}.sales-panel{padding:20px;margin-inline:-5px}.sales-panel .quote-form{padding:20px}.short-quote .form-grid{grid-template-columns:1fr}.hero-points{gap:10px;flex-wrap:wrap}.brand-lockup strong{font-size:18px}.brand-lockup small{font-size:10px}.project-hero-caption strong{font-size:20px}.sales-phone{font-size:22px}}

@media(max-width:1000px){.article-layout{grid-template-columns:1fr}.article-layout .help-card{position:static;max-width:500px}}