/* Final reading hierarchy for the commercial homepage. */
body{font-size:16px;line-height:1.7}
#main section[id]{scroll-margin-top:0}
#main .section{padding-block:76px}
#main h2{font-size:clamp(32px,3.4vw,44px);line-height:1.15}
#main .section-heading{gap:28px;margin-bottom:32px}
#main .section-heading>p{font-size:16px;line-height:1.7;max-width:440px}
#main .section-heading>p br{display:none}
#main .btn{font-size:15px;min-height:48px;line-height:1.4}
.hero{min-height:620px}
.hero .hero-content{padding-block:60px 90px}
.hero h1{font-size:clamp(42px,5vw,64px);line-height:1.06;max-width:760px}
.hero .hero-intro{max-width:530px;font-size:17px;line-height:1.75}
.hero .hero-assurance{font-size:13px}
.hero .hero-bottom{font-size:14px;margin-top:-54px;padding-block:22px}
.hero .hero-location small{font-size:11px;letter-spacing:.08em}
.hero .hero-location div>span{font-size:12px}
.hero .hero-link{font-size:15px;min-height:44px}
.gas-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.gas-card{display:flex;flex-direction:column}
.gas-card .gas-family-photo{height:190px;flex-shrink:0}
.gas-card .gas-family-photo.contained-photo{object-fit:contain;background:#f1f4f7}
.gas-card-content{display:flex;flex-direction:column;flex:1;padding:25px}
.gas-card-content h3{font-size:25px;line-height:1.2;letter-spacing:-.025em;margin-bottom:16px;min-height:0}
.gas-card-content>p{font-size:16px;line-height:1.65;color:#65717d;flex:1;margin-bottom:18px}
.gas-card .family-page-link{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:15px;line-height:1.5;font-weight:700;color:#204098;min-height:44px;margin-bottom:12px}
.gas-card .family-page-link:hover{text-decoration:underline;text-underline-offset:4px}
.gas-card-content>button{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:48px;width:100%;font-size:15px;line-height:1.45;text-align:left;background:#204098;color:#fff;border:0;border-radius:5px;padding:12px 16px;margin:0}
.gas-card-content>button:hover{background:#16337d}
.help-card{padding:28px;justify-content:center;gap:12px}
.help-card h3{font-size:28px;line-height:1.2;margin:8px 0}
.help-card p{font-size:16px;line-height:1.7}
.help-card button{font-size:15px;min-height:48px}
.catalog-filter{gap:10px;flex-wrap:wrap}
.catalog-filter button{font-size:14px;line-height:1.4;min-height:48px;padding:12px 16px}
.sector-tab{font-size:16px;line-height:1.4;min-height:56px}
.sector-copy h3{font-size:30px;line-height:1.2}
.sector-copy>p{font-size:16px;line-height:1.7}
.sector-copy .sector-tags>span{font-size:13px;line-height:1.5}
.purchase-copy>p:not(.eyebrow),.delivery-layout>div>p{font-size:16px;line-height:1.75}
.offer-breakdown strong,.offer-breakdown span{font-size:15px;line-height:1.6}
.purchase-copy .fine-print{font-size:13px!important;line-height:1.6}
.field>label,.need-fieldset legend{font-size:15px;line-height:1.5}
.field input,.field select,.field textarea{font-size:16px;min-height:48px}
.need-options label>span{font-size:14px;line-height:1.4;min-height:60px}
.form-step>p,.quote-aside>p{font-size:15px;line-height:1.65}
.quote-steps>span{font-size:14px;line-height:1.4}
.quote-steps b{flex-shrink:0}
.quote-summary{font-size:15px;line-height:1.75}
.quote-aside dt{font-size:13px}
.quote-aside dd{font-size:15px;line-height:1.5}
.form-actions,.summary-actions{gap:12px;flex-wrap:wrap}
.form-actions>span{font-size:13px}
.technical-resources{background:#f4f6f9}
.family-dossiers{display:flex;flex-direction:column;gap:12px}
.family-dossier{min-width:0;background:#fff;border:1px solid #dce3eb;border-radius:8px;overflow:hidden}
.family-dossier>summary{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:20px 24px;list-style:none;cursor:pointer}
.family-dossier>summary::-webkit-details-marker{display:none}
.dossier-caption{min-width:0}
.dossier-caption strong{display:block;font-size:20px;font-weight:700;line-height:1.35}
.dossier-caption small{display:block;font-size:14px;line-height:1.6;color:#65717d;margin-top:5px}
.dossier-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;background:#eef3fb;border-radius:50%;font-size:24px;line-height:1;color:#204098}
.dossier-toggle:after{content:'+'}
.family-dossier[open]>.dossier-content{border-top:1px solid #e3e8ef}
.family-dossier[open]>summary{background:#eef3fb}
.family-dossier[open] .dossier-toggle:after{content:'−'}
.dossier-content{padding:26px}
.dossier-content .container{width:100%;max-width:none}
#main .dossier-content .section{padding-block:24px}
#main .dossier-content h2{font-size:clamp(28px,3vw,36px);line-height:1.2}
.dossier-content .industrial-photo-section,.dossier-content .welding-feature{margin:0}
.dossier-content .industrial-photo-heading,.dossier-content .section-heading{margin-bottom:26px}
.dossier-content .welding-copy p,.dossier-content .gpl-intro p,.dossier-content .nitrogen-intro p,.dossier-content .nitrogen-app-copy>p,.dossier-content .laboratory-services p{font-size:15px;line-height:1.7}
.dossier-content .reference-library{margin-bottom:0}
.dossier-content .refrigerant-finder>p,.dossier-content .laboratory-specifications>p{font-size:14px;line-height:1.65}
.dossier-content .refrigerant-card h4{font-size:16px;line-height:1.4}
.dossier-content .refrigerant-card small,.dossier-content .laboratory-results small{font-size:12px;line-height:1.5}
.dossier-content .refrigerant-card p,.dossier-content .laboratory-results span{font-size:14px;line-height:1.5}
.dossier-content .refrigerant-search-field label{font-size:15px}
.dossier-content .refrigerant-search-field input{font-size:16px;min-height:48px}
.dossier-content .gpl-choice>p,.dossier-content .nitrogen-other>p,.dossier-content .check-list{font-size:15px;line-height:1.7}
.faq-list summary{font-size:17px;line-height:1.5;min-height:60px}
.faq-list details>p{font-size:16px;line-height:1.75}
.closing .btn{white-space:normal}
.footer-bottom{flex-wrap:wrap;align-items:center;font-size:13px;line-height:1.6}
.footer-bottom a,.footer-bottom button{display:inline-flex;align-items:center;min-height:44px;font-size:14px;line-height:1.5;text-align:left}
.footer-email{display:flex;align-items:center;gap:8px 24px;flex-wrap:wrap;padding-bottom:24px;min-width:0}
.footer-email>span{font-size:13px;color:#b8c4d0}
.footer-email>a{font-size:16px;min-height:44px;display:inline-flex;align-items:center;overflow-wrap:anywhere;min-width:0}
.email-help{font-size:14px;line-height:1.7;color:#526170;margin-top:18px}
.summary-step .step-subtitle a{color:#204098;text-decoration:underline;overflow-wrap:anywhere}
.summary-actions>a{max-width:100%;white-space:normal}
@media(max-width:960px){
 #main .section{padding-block:60px}
 .hero{min-height:0}
 .hero .hero-content{padding-block:42px 28px}
 .hero h1{font-size:clamp(36px,6vw,54px)}
 .hero .hero-intro{max-width:590px;font-size:16px}
 .hero .hero-bottom{margin-top:0;gap:16px 28px}
 .gas-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
 .dossier-content{padding:22px}
}
@media(max-width:650px){
 #main .section{padding-block:48px}
 #main h2{font-size:32px}
 .hero h1{font-size:clamp(32px,7.8vw,42px);line-height:1.12}
 .hero .hero-intro{font-size:16px;line-height:1.7}
 .hero .hero-bottom{font-size:13px;gap:14px 20px}
 .gas-grid{grid-template-columns:minmax(0,1fr)}
 .gas-card .gas-family-photo{height:200px}
 .gas-card-content{padding:22px}
 .gas-card-content h3{font-size:25px}
 .catalog-filter button{font-size:14px;padding:12px}
 .family-dossier>summary{padding:18px 16px;gap:14px}
 .dossier-caption strong{font-size:18px}
 .dossier-caption small{font-size:14px}
 .dossier-content{padding:18px 14px}
 #main .dossier-content .section{padding-block:16px}
 .dossier-content .section-heading{margin-bottom:22px}
 .quote-steps{gap:8px}
 .quote-steps>span{font-size:12px}
}