.skip-link{position:absolute;left:20px;top:-100px;z-index:50;background:var(--ink);color:white;padding:12px}.skip-link:focus{top:10px}.mobile-menu{display:none}.small{font-size:12px!important;margin-top:14px!important}.home-process{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;margin:30px 0}.home-process b{font-size:12px;font-weight:400}.home-process h3{margin:20px 0 14px}.home-process p{color:var(--muted)}.inline-link{display:inline-block;border-bottom:1px solid;margin-top:25px}.start-layout .button{background:var(--paper);color:var(--ink);margin-top:25px}.full-footer nav{display:flex;flex-wrap:wrap;gap:22px;margin-top:15px}.full-footer nav a{min-height:30px;display:inline-flex;align-items:center}.article-head{padding-top:55px;padding-bottom:65px;border-bottom:1px solid var(--line)}.breadcrumb{display:inline-block;font-size:13px;text-decoration:underline;margin-bottom:45px}.article-head h1{max-width:1050px;font-size:clamp(2.6rem,4.6vw,4.8rem);line-height:1.1}.answer{font-size:clamp(18px,1.6vw,22px);max-width:870px;margin-top:30px;line-height:1.65;color:#45574b}.article-layout{display:grid;grid-template-columns:1fr 2.4fr;gap:8%;padding:65px 0 90px}.contents{align-self:start;position:sticky;top:35px}.contents a{display:block;font-size:14px;margin:14px 0;color:var(--muted)}.contents a:hover{color:var(--ink);text-decoration:underline}.prose{max-width:820px;min-width:0}.prose section{margin-bottom:55px;scroll-margin-top:35px}.refined .prose h2{font-size:clamp(1.6rem,2.5vw,2.4rem);margin-bottom:23px;letter-spacing:-.035em}.prose p{margin:17px 0}.prose p,.prose li{line-height:1.8}.prose a,.faq details a,.form-note a{text-decoration:underline;text-underline-offset:3px}.prose ul{padding-left:22px}.prose li{margin:10px 0}.table-wrap{overflow-x:auto;max-width:100%;border-top:1px solid var(--line)}table{width:100%;border-collapse:collapse;font-size:15px;text-align:left}caption{text-align:left;font-size:12px;padding:15px 0;color:var(--muted)}td,th{padding:18px 15px 18px 0;border-bottom:1px solid var(--line);vertical-align:top;min-width:110px}th{font-weight:600}.sources{border-top:1px solid var(--line);padding-top:30px}.sources p,.sources li,.editorial-note{font-size:13px;color:var(--muted)}.related a{display:block;padding:15px 0;border-top:1px solid var(--line);text-decoration:none}.related a span{float:right}.quote-checker fieldset{border:0;padding:0;margin:0}.quote-checker legend{font-size:14px;margin-bottom:20px}.quote-checker label{display:flex;align-items:start;gap:15px;padding:14px 0;border-bottom:1px solid var(--line);cursor:pointer}.quote-checker input{width:20px;height:20px;flex:none;margin-top:4px;accent-color:var(--ink)}.enquiry-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:10%;padding:75px 0 100px}.enquiry-intro{align-self:start;position:sticky;top:50px}.refined .enquiry-intro h1{font-size:clamp(2.5rem,4.4vw,4.5rem);line-height:1.1}.enquiry-intro p{margin-top:26px;max-width:370px;color:var(--muted)}.enquiry-intro ul{font-size:14px;padding-left:20px;margin-top:30px}.enquiry-intro li{padding:6px 0}.enquiry-panel{border-top:1px solid var(--ink);padding-top:22px}.form-progress{font-size:12px;letter-spacing:.06em;margin-bottom:28px}.enquiry-panel fieldset{border:0;margin:0 0 35px;padding:0;min-width:0}.enquiry-panel legend{font-size:22px;margin-bottom:28px;letter-spacing:-.035em}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px 20px}.form-grid label{font-size:14px}.form-grid input:not([type=checkbox]),.form-grid select,.form-grid textarea{font:inherit;width:100%;display:block;padding:13px 10px;border:1px solid #a9b3aa;border-radius:0;background:transparent;color:var(--ink);margin-top:9px;min-height:50px;resize:vertical}.form-grid .wide{grid-column:1/-1}.form-grid .check-label{display:flex;align-items:start;gap:12px;font-size:13px;line-height:1.65}.check-label input{width:20px;height:20px;flex:none;accent-color:var(--ink);margin-top:2px}.optional{font-size:12px;color:var(--muted);margin-left:8px}.field-error{color:#9e2824;font-size:12px;display:block;margin-top:7px}.field-error:empty{display:none}.enquiry-panel .form-note{margin-top:22px!important;opacity:1;line-height:1.7}.form-actions{display:flex;gap:20px;align-items:center;justify-content:space-between;margin-top:28px}.next-step{margin-top:28px}.back-step{border:0;border-bottom:1px solid;background:none;padding:10px 0;color:var(--ink);font-size:14px}.form-alert:not(:empty){border-left:3px solid #9e2824;background:#f4e8e3;padding:15px;margin-bottom:25px;font-size:14px}.enquiry-panel [aria-invalid=true]{border-color:#9e2824!important}.honeypot{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}#enquiry-success p{margin:22px 0}#enquiry-success .button{margin-top:16px}[hidden]{display:none!important}button:disabled{opacity:.65;cursor:wait}.refined .enquiry-panel :focus-visible{outline-offset:3px}.refined .faq details a{text-decoration:underline}
@media(max-width:1000px){.refined .site-nav .nav-links{display:none}.mobile-menu{display:block;position:relative}.mobile-menu summary{font-size:14px;gap:25px;min-height:44px;align-items:center}.mobile-menu nav{position:absolute;right:0;top:50px;width:240px;padding:20px;background:var(--paper);border:1px solid var(--line);z-index:20;box-shadow:0 15px 30px #263b3312}.mobile-menu a{display:block;padding:12px}.article-layout{gap:5%;grid-template-columns:1fr 2.7fr}.enquiry-layout{gap:6%}}
@media(max-width:700px){.article-head{padding-top:25px;padding-bottom:40px}.breadcrumb{margin-bottom:30px}.article-head h1{font-size:2.55rem}.article-layout{display:block;padding:30px 0 45px}.contents{position:static;border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:35px}.contents .folio{margin-bottom:12px}.contents a{margin:11px 0}.home-process{grid-template-columns:1fr;gap:30px}.home-process article{border-top:1px solid var(--line);padding-top:20px}.home-process h3{margin:12px 0}.enquiry-layout{display:block;padding:40px 0 60px}.enquiry-intro{position:static;margin-bottom:40px}.enquiry-intro h1{font-size:2.8rem!important}.enquiry-intro ul{margin-top:20px}.enquiry-panel{padding-top:22px}.form-grid{grid-template-columns:1fr}.form-actions{flex-wrap:wrap}.form-actions .submit-button{width:100%}.refined .full-footer{padding-bottom:35px}.prose section{margin-bottom:40px}}
@media print{.site-nav,.footer,.contents,.start-section,.print-button,.skip-link,.related{display:none!important}.article-layout{display:block}.wrap{width:100%!important}.article-head{padding:10px 0}.article-head h1{font-size:28px!important}.prose{max-width:none}.prose section{margin-bottom:20px}.quote-checker label{break-inside:avoid}body{background:white;color:black}.breadcrumb{display:none}}

/* Roof-type inspiration keeps the architectural form visible at every size. */
.guide-figure{margin-top:45px!important;margin-bottom:0!important}.guide-figure img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:contain;background:#e8ece6}.guide-figure figcaption{display:flex;justify-content:space-between;align-items:start;gap:35px;padding:20px 0 25px;border-bottom:1px solid var(--line)}.guide-figure figcaption .folio{display:block;font-size:12px;margin-bottom:9px;text-transform:uppercase}.guide-figure figcaption p{font-size:14px;color:var(--muted);max-width:690px;line-height:1.65}.image-disclosure{flex-shrink:0;font-size:12px;line-height:1.7;color:var(--muted);text-align:right}@media(min-width:1100px){.guide-figure{width:min(1100px,90%)!important}}@media(max-width:700px){.guide-figure{margin-top:28px!important}.guide-figure figcaption{display:block;padding:16px 0 20px}.image-disclosure{display:block;text-align:left;margin-top:14px}.guide-figure figcaption p{font-size:14px}}@media print{.guide-figure{max-width:500px;break-inside:avoid}}

.enquiry-next-step{max-width:420px;margin-top:28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0}.refined .enquiry-next-step summary{font-size:15px;line-height:1.5;min-height:28px;align-items:center}.enquiry-next-step ol{margin:20px 0 0;padding-left:22px}.enquiry-intro .enquiry-next-step li{font-size:14px;line-height:1.7;color:var(--muted);padding:0 0 14px 5px}.enquiry-next-step strong{display:block;font-weight:500;color:var(--ink)}.enquiry-next-step .inline-link{font-size:14px;margin-top:0;margin-bottom:7px;min-height:36px;line-height:36px}#enquiry-form{scroll-margin-top:30px}

/* Useful hierarchy and roof comparisons, in the existing architectural palette. */
picture{display:block}.breadcrumbs{font-size:14px;line-height:1.6;margin-bottom:38px}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:8px 12px;list-style:none;padding:0;margin:0}.breadcrumbs li{display:flex;gap:12px;align-items:baseline}.breadcrumbs li+li:before{content:"/";color:var(--muted)}.breadcrumbs a{text-decoration:underline;text-underline-offset:3px}.breadcrumbs [aria-current]{color:var(--muted)}.comparison-pair{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:26px 0;gap:28px;padding:25px 0}.comparison-pair h3{font-size:1.15rem;line-height:1.4;margin-bottom:12px}.comparison-pair p{margin:0}.image-window picture{height:100%}@media(max-width:700px){.breadcrumbs{margin-bottom:28px}.comparison-pair{grid-template-columns:1fr;gap:24px}}@media print{.breadcrumbs{display:none}}

/* Reference-led refinement: useful project decisions before an introduction. */
.refined .service-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px 36px;padding-left:0}.refined .service-card{display:block;padding:0;border:0}.refined .service-card:last-child{border:0}.service-image{display:block;overflow:hidden;background:#e8ece6}.service-image img{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:contain}.service-copy{padding:24px 0 0}.refined .service-copy .number{display:block;font-size:11px;letter-spacing:.1em;margin:0 0 15px}.refined .service-copy h3{font-size:29px;margin:0 0 14px}.refined .service-copy p{max-width:560px}.refined .service-copy .text-link{width:100%;margin-top:22px;min-height:48px}.concept-note{font-size:12px;line-height:1.7;color:var(--muted);margin-top:30px;max-width:700px}.guide-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;margin-top:28px}.guide-actions>a:not(.button){font-size:14px;text-decoration:underline;text-underline-offset:4px;display:inline-flex;align-items:center;min-height:44px}.article-layout{scroll-margin-top:25px}.contents a{min-height:36px;display:flex;align-items:center;margin:4px 0;padding:5px 0}.enquiry-intro .enquiry-reassurance{font-size:14px;line-height:1.8;margin-top:22px}.enquiry-panel{padding-top:0;border-top:0}.form-progress{font-size:12px;letter-spacing:.03em;margin-bottom:15px}.form-step-track{display:grid;grid-template-columns:1fr 1fr;gap:16px;list-style:none;margin:0 0 32px;padding:0;font-size:13px;color:var(--muted)}.form-step-track li{padding:14px 0;border-top:2px solid var(--line)}.form-step-track [aria-current]{border-color:var(--ink);color:var(--ink)}.enquiry-panel legend{font-size:28px;margin-bottom:16px}.step-intro{font-size:14px;line-height:1.7;color:var(--muted);margin:0 0 24px;max-width:580px}.form-grid select:invalid{color:var(--muted)}.budget-help{border-bottom:1px solid var(--line);margin-top:22px;padding:8px 0}.refined .budget-help summary{min-height:44px;align-items:center;font-size:14px}.refined .budget-help p{font-size:14px;line-height:1.7;padding-bottom:14px}.budget-help a{text-decoration:underline;text-underline-offset:3px}.project-recap{padding:22px 24px;margin:0 0 28px;background:#e8ece6}.project-recap .folio{font-size:11px;margin:0 0 16px}.project-recap dl{display:grid;grid-template-columns:auto 1fr;gap:8px 24px;font-size:14px;line-height:1.6;margin:0}.project-recap dt{color:var(--muted)}.project-recap dd{margin:0}.project-recap>p:last-child{font-size:12px;color:var(--muted);margin-top:16px}.refined .enquiry-next-step summary{min-height:44px}.enquiry-panel input,.enquiry-panel select,.enquiry-panel textarea{font-size:16px!important}.form-grid label{line-height:1.5}.field-error{font-size:14px;line-height:1.5}.enquiry-layout>*,.guide-opening>*,.service-card{min-width:0}
@media(min-width:1100px){.guide-opening{width:min(1440px,90%);margin:0 auto;display:grid;grid-template-columns:1.06fr 1fr;gap:6%;align-items:center;padding:48px 0 52px;border-bottom:1px solid var(--line)}.refined .guide-opening .article-head,.refined .guide-opening .guide-figure{width:100%!important;margin:0!important;padding:0;border:0}.guide-opening .article-head h1{font-size:clamp(2.7rem,3.2vw,3.7rem)}.guide-opening .answer{font-size:18px;line-height:1.7;margin-top:24px}.guide-opening .breadcrumbs{font-size:12px;margin-bottom:27px}.guide-opening .folio{margin-bottom:18px}.guide-opening .guide-figure figcaption{display:block;border:0;padding-bottom:0}.guide-opening .image-disclosure{display:block;text-align:left;margin-top:14px}.guide-opening .image-disclosure br{display:none}.guide-opening .image-disclosure br:after{content:' '}.guide-opening .guide-figure figcaption p{font-size:13px}.guide-opening .guide-actions{gap:12px 18px}}
@media(max-width:700px){.refined .service-grid{grid-template-columns:1fr;gap:36px}.refined .service-copy h3{font-size:26px}.service-copy{padding-top:20px}.refined .service-copy .text-link{grid-column:auto;width:100%;margin-top:18px}.enquiry-layout{padding-top:32px}.enquiry-intro .folio{margin-top:0;margin-bottom:18px}.enquiry-intro>p:not(.folio){margin-top:18px}.enquiry-intro h1 br{display:none}.enquiry-intro{margin-bottom:30px}.enquiry-next-step{margin-top:18px;padding:5px 0}.enquiry-panel{padding:0}.form-step-track{margin-bottom:20px}.project-recap{padding:20px}.guide-actions{gap:8px 22px}.guide-actions .button{width:100%;justify-content:space-between}.contents a{min-height:44px}.article-head h1{overflow-wrap:anywhere}.enquiry-intro h1{overflow-wrap:anywhere}.form-grid{gap:20px}.form-grid select{padding-right:22px}.refined .full-footer nav a{min-height:44px}}
@media print{.guide-actions,.budget-help,.form-step-track{display:none!important}.guide-opening{display:block}.refined .service-grid{display:block}}

@media(max-width:700px){.refined .site-nav{flex-wrap:wrap;row-gap:18px}.mobile-menu{margin-left:auto}.refined .enquiry-intro h1{letter-spacing:-.05em}.project-recap dl{grid-template-columns:minmax(0,.55fr) minmax(0,1fr)}.project-recap dd{overflow-wrap:anywhere}}