:root{--navy:#071a38;--navy2:#102b52;--red:#e51c23;--ink:#172033;--muted:#657084;--line:#dfe4ea;--light:#f5f7f9;--white:#fff;--container:1180px;--shadow:0 18px 45px rgba(7,26,56,.10)}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Arial,Helvetica,sans-serif;color:var(--ink);line-height:1.65;background:#fff;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%;height:auto}a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(92%,var(--container));margin:auto}.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:#000;padding:10px;z-index:9999}.skip-link:focus{left:10px;top:10px}.topbar{background:var(--navy);color:#d8e0eb;font-size:12px}.topbar-inner{min-height:40px;display:flex;align-items:center;justify-content:space-between;gap:18px}.topbar-links{display:flex;align-items:center;gap:10px}.topbar a:hover{color:#fff}.site-header{position:sticky;top:0;z-index:1000;background:#fff;border-bottom:1px solid #edf0f4}.nav-wrap{height:92px;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;flex:0 0 auto}.brand img{width:250px;height:auto}.main-nav{margin-left:auto;display:flex;align-items:center;gap:23px}.main-nav>a{font-size:13px;font-weight:700;color:var(--navy);padding:8px 0;border-bottom:2px solid transparent}.main-nav>a:hover,.main-nav>a.active{border-bottom-color:var(--red)}.main-nav .nav-cta{background:var(--red);color:#fff;padding:12px 16px;border:0}.main-nav .nav-cta:hover{background:#c8181e}.menu-toggle{display:none;width:42px;height:42px;background:#fff;border:1px solid var(--line);padding:9px}.menu-toggle span{display:block;height:2px;background:var(--navy);margin:5px 0}.eyebrow,.section-tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:1.7px;color:var(--red)}h1,h2,h3,h4{font-weight:800;line-height:1.15;color:var(--navy)}p{color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;font-size:13px;font-weight:800;border:1px solid transparent;transition:.2s}.btn-primary{background:var(--red);color:#fff}.btn-primary:hover{background:#c8181e;transform:translateY(-1px)}.btn-secondary{background:#fff;border-color:var(--navy);color:var(--navy)}.btn-secondary:hover{background:var(--navy);color:#fff}.btn-light{background:#fff;color:var(--navy)}.btn-outline-light{border-color:rgba(255,255,255,.65);color:#fff;background:transparent}.btn-outline-light:hover{background:#fff;color:var(--navy)}.text-link{display:inline-block;color:var(--red);font-weight:800;margin-top:18px;border-bottom:1px solid currentColor}.button-row,.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.home-hero{position:relative;min-height:650px;color:#fff;overflow:hidden}.hero-photo{position:absolute;inset:0;background:url('../img/hero-home.webp') center/cover no-repeat}.hero-shade{position:absolute;inset:0;background:rgba(3,17,38,.72)}.home-hero-inner{position:relative;z-index:2;min-height:650px;display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}.hero-copy h1{font-size:clamp(48px,6vw,78px);color:#fff;margin:15px 0 22px;max-width:760px}.hero-copy h1 span{color:#ff4b51}.hero-copy>p{color:#e0e7f0;font-size:18px;max-width:720px}.hero-actions{margin-top:32px}.hero-card{justify-self:end;width:min(100%,360px);padding:30px;background:rgba(255,255,255,.94);color:var(--navy);border-top:5px solid var(--red)}.hero-card strong{font-size:21px}.hero-card p{margin:9px 0 20px}.hero-card a{font-weight:800;color:var(--red);display:block}.hero-card .hero-phone-secondary{margin-top:6px}.credibility-strip{background:#fff;border-bottom:1px solid var(--line)}.credibility-grid{display:grid;grid-template-columns:repeat(4,1fr)}.credibility-grid>div{padding:26px 20px;border-right:1px solid var(--line)}.credibility-grid>div:last-child{border-right:0}.credibility-grid strong,.credibility-grid span{display:block}.credibility-grid strong{color:var(--navy);font-size:14px}.credibility-grid span{color:var(--muted);font-size:12px;margin-top:4px}.page-hero{position:relative;background:var(--navy);color:#fff;overflow:hidden;isolation:isolate;background-image:linear-gradient(rgba(3,17,38,.74),rgba(3,17,38,.74)),var(--hero-bg,url('../img/hero-home.webp'));background-position:center;background-size:cover;background-repeat:no-repeat}.page-hero.hero-about{--hero-bg:url('../img/about-work.webp')}.page-hero.hero-services{--hero-bg:url('../img/hvac.webp')}.page-hero.hero-projects{--hero-bg:url('../img/projects/nssa-main.webp')}.page-hero.hero-maintenance{--hero-bg:url('../img/maintenance.webp')}.page-hero.hero-credentials{--hero-bg:url('../img/hero-home.webp')}.page-hero.hero-contact{--hero-bg:url('../img/contact.webp')}.page-hero-inner{position:relative;z-index:1;padding:92px 0 80px;max-width:880px}.page-hero h1{color:#fff;font-size:clamp(40px,5vw,62px);margin:12px 0 18px}.page-hero p{color:#ccd6e5;font-size:18px;max-width:760px}.section{padding:92px 0}.section-muted{background:var(--light)}.section-dark{background:var(--navy);color:#fff}.section h2{font-size:clamp(30px,4vw,46px);margin:10px 0 20px}.section p+p{margin-top:14px}.section-heading{max-width:760px;text-align:center;margin:0 auto 46px}.section-heading.left{text-align:left;margin-left:0}.section-heading.light h2,.section-dark h2{color:#fff}.section-heading.light p,.section-dark p{color:#b8c6d7}.intro-grid,.service-detail-grid,.two-col,.safety-grid,.contact-grid,.leadership-grid{display:grid;grid-template-columns:1fr 1fr;gap:65px;align-items:center}.feature-photo,.service-photo,.contact-photo{width:100%;height:470px;object-fit:cover;box-shadow:var(--shadow)}.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.service-grid-large{grid-template-columns:repeat(4,1fr)}.service-card{background:#fff;border:1px solid var(--line);transition:.2s}.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.service-card img{width:100%;height:200px;object-fit:cover}.service-card>div{padding:25px}.service-card span{font-size:11px;color:var(--red);font-weight:800}.service-card h3{font-size:20px;margin:12px 0 10px}.service-card p{font-size:14px}.service-card b{display:inline-block;margin-top:18px;color:var(--red);font-size:13px}.reason-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.reason-grid>div{padding:26px;border:1px solid var(--line);background:#fff}.reason-grid strong{display:block;color:var(--navy);margin-bottom:8px}.dark-reasons>div{background:#0c2447;border-color:#244163}.dark-reasons strong{color:#fff}.dark-reasons p{color:#b8c6d7}.sector-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #29415f;border-left:1px solid #29415f}.sector-grid>div{padding:26px 18px;border-right:1px solid #29415f;border-bottom:1px solid #29415f;color:#fff;font-weight:700}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.project-card{border:1px solid var(--line);background:#fff;transition:.2s}.project-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.project-card img{width:100%;height:245px;object-fit:cover}.project-card>div{padding:24px}.project-card span{font-size:10px;font-weight:800;letter-spacing:1px;color:var(--red)}.project-card h3{font-size:20px;margin:8px 0}.compact .project-card>div{padding:18px}.center-action{text-align:center;margin-top:36px}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.process-grid>div{padding:26px;background:#fff;border:1px solid var(--line)}.process-grid span{font-size:11px;font-weight:900;color:var(--red)}.process-grid h3{font-size:19px;margin:16px 0 8px}.maintenance-promo{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center;background:var(--light);padding:48px}.maintenance-promo img{width:100%;height:390px;object-fit:cover}.contracting-banner,.final-cta{display:flex;align-items:center;justify-content:space-between;gap:45px}.contracting-banner>div,.final-cta>div{max-width:760px}.contracting-banner h2,.final-cta.dark h2{color:#fff}.contracting-banner p,.final-cta.dark p{color:#b8c6d7}.portrait{width:100%;max-width:420px;aspect-ratio:4/5;object-fit:cover;box-shadow:var(--shadow)}.role{font-weight:800;color:var(--red)!important;margin-bottom:16px}.faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:18px 0}.faq-list summary{cursor:pointer;font-weight:800;color:var(--navy);list-style:none;padding-right:24px}.faq-list summary::-webkit-details-marker{display:none}.faq-list p{padding:10px 0 0}.facts-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.facts-grid>div{background:#fff;border:1px solid var(--line);padding:24px}.facts-grid span,.facts-grid strong{display:block}.facts-grid span{font-size:10px;color:var(--red);font-weight:900;letter-spacing:1px}.facts-grid strong{margin-top:7px;color:var(--navy)}.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.values-grid>div{padding:30px;border:1px solid var(--line)}.values-grid h3{font-size:21px;margin:11px 0}.leader-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.leader-card{display:grid;grid-template-columns:175px 1fr;gap:24px;align-items:center;border:1px solid var(--line);padding:22px}.leader-card img{width:175px;height:215px;object-fit:cover}.leader-card span{color:var(--red);font-weight:800;font-size:13px}.leader-card h3{margin-bottom:5px}.leader-card.text{grid-template-columns:120px 1fr}.initials{width:100px;height:100px;border-radius:50%;display:grid;place-items:center;background:var(--navy);color:#fff;font-weight:900;font-size:28px}.check-list{display:grid;gap:14px}.check-list>div{padding:20px;background:#fff;border:1px solid var(--line)}.check-list strong,.check-list span{display:block}.check-list span{color:var(--muted);font-size:14px;margin-top:4px}.tick-list{list-style:none;display:grid;gap:10px;margin-top:20px}.tick-list li{padding-left:20px;position:relative;color:var(--muted)}.tick-list li:before{content:'';position:absolute;left:0;top:.62em;width:8px;height:8px;background:var(--red)}.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.plan-grid>div{background:#fff;border:1px solid var(--line);padding:28px}.plan-grid h3{margin-bottom:10px}.plan-grid a{display:inline-block;margin-top:18px;color:var(--red);font-weight:800}.reference-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.reference-grid>div{padding:22px;border:1px solid var(--line);background:#fff}.reference-grid strong,.reference-grid span{display:block}.reference-grid strong{color:var(--navy)}.reference-grid span{font-size:13px;color:var(--muted);margin-top:4px}.reference-grid.dark>div{background:#0c2447;border-color:#29415f}.reference-grid.dark strong{color:#fff}.reference-grid.dark span{color:#b8c6d7}.small-note{font-size:12px;margin-top:20px}.case-stack{display:grid;gap:55px}.case-study{display:grid;grid-template-columns:1.15fr .85fr;gap:45px;align-items:start;padding-bottom:55px;border-bottom:1px solid var(--line);scroll-margin-top:120px}.case-study:last-child{border-bottom:0}.case-gallery>img{width:100%;height:420px;object-fit:cover}.case-gallery>div{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}.case-gallery>div img{width:100%;height:170px;object-fit:cover}.case-copy>span{font-size:11px;font-weight:800;color:var(--red);letter-spacing:1px}.case-copy h2{font-size:34px}.case-copy dl{margin:20px 0}.case-copy dl>div,.credential-card dl>div,.credential-panel dl>div{display:grid;grid-template-columns:120px 1fr;gap:15px;padding:11px 0;border-top:1px solid var(--line)}.case-copy dt,.credential-card dt,.credential-panel dt{font-size:12px;color:var(--muted)}.case-copy dd,.credential-card dd,.credential-panel dd{font-weight:700;color:var(--navy)}.credential-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.credential-card,.credential-panel,.contact-box{border:1px solid var(--line);padding:32px;background:#fff}.credential-card>span,.credential-panel>span{font-size:11px;font-weight:900;color:var(--red);letter-spacing:1px}.credential-card h2{font-size:27px}.credential-panel h3{font-size:34px;margin:10px 0 5px}.credential-panel .btn,.contact-box .btn{margin-top:20px}.contact-grid{align-items:start}.contact-list{border-top:1px solid var(--line);margin-top:25px}.contact-list>div{padding:14px 0;border-bottom:1px solid var(--line)}.contact-list span,.contact-list a,.contact-list strong{display:block}.contact-list span{font-size:10px;color:var(--red);font-weight:900;letter-spacing:1px}.contact-list a,.contact-list strong{margin-top:4px;color:var(--navy)}.quote-form{margin-top:22px;background:var(--light);padding:32px;display:grid;gap:16px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:15px}.quote-form label{font-size:12px;font-weight:800;color:var(--navy)}.quote-form input,.quote-form select,.quote-form textarea{width:100%;margin-top:6px;border:1px solid #cbd3de;background:#fff;padding:13px;color:var(--ink);outline:none}.quote-form input:focus,.quote-form select:focus,.quote-form textarea:focus{border-color:var(--red)}.form-note,.form-status{font-size:11px}.footer{background:#031126;color:#aab5c5;padding-top:65px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.3fr 1.5fr;gap:40px;padding-bottom:50px}.footer-brand img{width:250px;background:#fff;padding:7px;margin-bottom:16px}.footer h4{color:#fff;margin-bottom:15px}.footer a,.footer p{display:block;font-size:13px;margin-bottom:8px}.footer a:hover{color:#fff}.footer-bottom{border-top:1px solid #19304d;padding:18px 0}.whatsapp-float{position:fixed;right:20px;bottom:20px;z-index:1100;background:#25d366;color:#092b16;font-weight:900;padding:13px 18px;border-radius:28px;box-shadow:0 8px 24px rgba(0,0,0,.18)}
@media(max-width:1020px){.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:0;right:0;top:92px;background:#fff;padding:22px;flex-direction:column;align-items:stretch;border-top:1px solid var(--line);box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav>a{padding:9px 0}.main-nav .nav-cta{text-align:center}.home-hero-inner,.intro-grid,.service-detail-grid,.two-col,.safety-grid,.contact-grid,.leadership-grid,.maintenance-promo,.faq-wrap,.case-study{grid-template-columns:1fr}.hero-card{justify-self:start}.credibility-grid,.facts-grid{grid-template-columns:1fr 1fr}.service-grid,.service-grid-large,.reason-grid,.project-grid{grid-template-columns:1fr 1fr}.sector-grid{grid-template-columns:repeat(2,1fr)}.process-grid{grid-template-columns:1fr 1fr}.reference-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.feature-photo,.service-photo,.contact-photo{height:400px}.leader-grid,.credential-grid{grid-template-columns:1fr}.contracting-banner,.final-cta{align-items:flex-start;flex-direction:column}}
@media(max-width:650px){.topbar-inner>span:first-child{display:none}.topbar-inner{justify-content:center}.brand img{width:205px}.nav-wrap{height:82px}.main-nav{top:82px}.home-hero,.home-hero-inner{min-height:610px}.home-hero-inner{padding:68px 0}.hero-copy h1{font-size:44px}.hero-card{width:100%}.credibility-grid,.facts-grid,.service-grid,.service-grid-large,.reason-grid,.project-grid,.sector-grid,.process-grid,.values-grid,.plan-grid,.reference-grid,.form-row{grid-template-columns:1fr}.section{padding:70px 0}.feature-photo,.service-photo,.contact-photo{height:300px}.maintenance-promo{padding:26px}.maintenance-promo img{height:280px}.case-gallery>img{height:320px}.case-gallery>div img{height:130px}.case-copy dl>div,.credential-card dl>div,.credential-panel dl>div{grid-template-columns:1fr}.leader-card,.leader-card.text{grid-template-columns:1fr}.leader-card img{width:100%;height:320px}.footer-grid{grid-template-columns:1fr}.whatsapp-float{right:14px;bottom:14px;padding:11px 14px}.page-hero-inner{padding:72px 0}.page-hero h1{font-size:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.service-card,.project-card{transition:none}}

/* Compliance credential enhancements */
.compliance-grid{grid-template-columns:repeat(2,1fr)}
.verified-card{border-top:4px solid #17884a}
.status-line{margin:18px 0 8px;padding:14px 16px;background:#f1f8f4;border-left:3px solid #17884a}
.status-line b,.status-line small{display:block}
.status-line b{color:#0f6636;font-size:14px}
.status-line small{color:var(--muted);margin-top:4px;font-size:12px}
@media(max-width:1020px){.compliance-grid{grid-template-columns:1fr}}

.facebook-link{font-weight:800;color:#fff!important}.facebook-link:before{content:"f";display:inline-grid;place-items:center;width:20px;height:20px;margin-right:8px;border-radius:50%;background:#1877f2;color:#fff;font:bold 14px/1 Arial;vertical-align:middle}.map-section{padding-top:78px}.map-frame{width:100%;height:460px;border:1px solid var(--line);background:#eef2f6;box-shadow:var(--shadow);overflow:hidden}.map-frame iframe{width:100%;height:100%;border:0;display:block}.map-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}@media(max-width:650px){.map-frame{height:340px}.map-actions .btn{width:100%;text-align:center}}