:root{--navy:#071420;--navy-2:#0d2130;--ink:#10222c;--blue:#0a9ed0;--red:#ed2343;--pale:#f2f7f8;--line:rgba(16,34,44,.13);--white:#fff;--shadow:0 24px 60px rgba(7,20,32,.11)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--white);font-family:'Cairo',system-ui,sans-serif;font-size:16px;line-height:1.8}body[dir=ltr]{font-family:'Manrope','Cairo',system-ui,sans-serif}.container{width:min(1160px,calc(100% - 48px));margin-inline:auto}.topbar{background:var(--navy);color:#b9c8cf;font-size:12px;letter-spacing:.02em}.topbar-inner{display:flex;justify-content:space-between;gap:18px;padding:8px 0}.topbar a{color:#fff;text-decoration:none;direction:ltr}.site-header{position:absolute;z-index:10;top:28px;left:0;right:0;color:#fff}.nav-wrap{display:flex;align-items:center;gap:34px}.brand{width:205px;display:block;background:rgba(255,255,255,.94);padding:6px 12px;border-radius:4px;box-shadow:0 12px 26px rgba(0,0,0,.12)}.brand img{width:100%;height:auto;display:block}.main-nav{display:flex;align-items:center;gap:28px;margin-inline:auto}.main-nav a,.nav-actions a{color:#dbe7eb;text-decoration:none;font-size:14px;transition:.2s}.main-nav a:hover,.main-nav a.active{color:#fff}.main-nav a.active{position:relative}.main-nav a.active:after{content:'';position:absolute;height:2px;background:var(--red);left:0;right:0;bottom:-10px}.nav-actions{display:flex;align-items:center;gap:15px}.language-switcher{display:flex;gap:3px;border:1px solid rgba(255,255,255,.25);padding:3px;border-radius:8px}.lang-btn{border:0;background:transparent;color:#b8c8ce;border-radius:5px;padding:4px 8px;font:inherit;font-size:12px;cursor:pointer}.lang-btn.active{background:#fff;color:var(--ink)}.nav-cta{border:1px solid rgba(255,255,255,.45);padding:9px 15px;border-radius:5px}.nav-cta:hover{background:#fff;color:var(--ink)!important}.menu-toggle{display:none;background:none;border:0;color:#fff;padding:8px}.menu-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px}.hero{min-height:720px;display:flex;align-items:center;position:relative;isolation:isolate;color:#fff;background:linear-gradient(90deg,rgba(4,16,28,.97) 0%,rgba(4,16,28,.84) 34%,rgba(4,16,28,.22) 74%,rgba(4,16,28,.5) 100%),url('assets/hero-hvac.png') center/cover no-repeat;overflow:hidden}.hero:after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,158,208,.11),transparent 38%,rgba(237,35,67,.08));z-index:-1}.hero-glow{position:absolute;width:460px;height:460px;border-radius:50%;background:rgba(10,158,208,.13);filter:blur(70px);left:-180px;top:40%;z-index:-1}.hero-content{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:80px;align-items:end;padding-top:110px}.hero-copy{max-width:650px}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--blue);text-transform:uppercase;letter-spacing:.09em;font-size:12px;font-weight:700;margin:0 0 18px}.eyebrow-line{width:29px;height:2px;background:var(--red);display:inline-block}.hero h1{font-size:clamp(46px,6vw,84px);line-height:1.1;letter-spacing:-.06em;margin:0 0 22px;font-weight:800}.hero h1 em{color:#77d5ee;font-style:normal}.hero-text{color:#c8d6da;max-width:570px;font-size:18px;line-height:1.9;margin:0}.hero-actions{display:flex;gap:13px;align-items:center;margin-top:35px;flex-wrap:wrap}.button{display:inline-flex;justify-content:center;align-items:center;gap:18px;padding:12px 18px;border-radius:5px;text-decoration:none;font:inherit;font-size:14px;font-weight:700;cursor:pointer;transition:.25s;border:0}.button span{font-size:21px;line-height:1}.button-primary{background:var(--red);color:#fff;box-shadow:0 15px 30px rgba(237,35,67,.22)}.button-primary:hover{background:#ff3b58;transform:translateY(-2px)}.button-ghost{border:1px solid rgba(255,255,255,.35);color:#fff}.button-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}.hero-proof{display:flex;gap:30px;margin-top:67px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);max-width:610px}.proof-item{display:flex;gap:9px;align-items:center;color:#afc0c6;font-size:12px}.proof-item strong{color:#fff;font-size:15px}.hero-side{align-self:end;padding-bottom:5px}.hero-side-card{border:1px solid rgba(255,255,255,.27);background:rgba(7,20,32,.48);backdrop-filter:blur(10px);padding:22px;min-height:180px;position:relative}.card-kicker{color:#90a9b1;display:block;font-size:11px;letter-spacing:.15em;margin-bottom:21px}.hero-side-card strong{font-size:23px;line-height:1.45}.hero-side-card a{position:absolute;bottom:19px;left:19px;color:#fff;text-decoration:none;font-size:24px}.hero-scroll{position:absolute;right:calc((100% - min(1160px,calc(100% - 48px)))/2);bottom:31px;display:flex;align-items:center;gap:14px;color:#a8b8be;font-size:11px}.hero-scroll i{width:42px;height:1px;background:var(--blue);display:block}.section-pad{padding:120px 0}.intro{background:var(--pale)}.intro-grid{display:grid;grid-template-columns:32% 1fr;gap:60px}.section-label{display:flex;flex-direction:column;gap:10px;color:var(--blue);font-weight:800}.section-label span{font-size:104px;line-height:.9;letter-spacing:-.09em;color:transparent;-webkit-text-stroke:1px rgba(10,158,208,.42)}.section-label small{color:#51656d;font-weight:600;font-size:13px}.intro-copy{max-width:700px}.intro-copy h2,.section-heading h2,.contact-copy h2{font-size:clamp(35px,4vw,58px);line-height:1.25;letter-spacing:-.055em;margin:0 0 20px}.intro-copy h2 span,.section-heading h2 span,.contact-copy h2 span{color:var(--blue)}.intro-copy>p:not(.eyebrow),.section-heading>p,.contact-copy>p:not(.eyebrow){color:#5e7279;font-size:17px;max-width:620px}.text-link{display:inline-flex;gap:13px;align-items:center;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--red);padding-bottom:2px;margin-top:20px;font-size:14px;font-weight:700}.text-link b{color:var(--red);font-size:20px}.services{background:#fff}.section-heading{display:flex;justify-content:space-between;gap:50px;align-items:end;margin-bottom:50px}.section-heading>p{max-width:350px;margin:0}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.service-card{min-height:310px;padding:25px 22px;border:1px solid var(--line);position:relative;transition:.25s;background:#fff}.service-card:hover{border-color:rgba(10,158,208,.65);transform:translateY(-5px);box-shadow:var(--shadow)}.service-feature{background:var(--navy);color:#fff;border-color:var(--navy)}.service-number{position:absolute;top:19px;left:20px;font:600 12px 'Manrope',sans-serif;color:#86a2ae}.service-icon{font:400 37px 'Manrope',sans-serif;color:var(--blue);margin-top:26px}.service-card h3{font-size:21px;line-height:1.45;margin:35px 0 11px}.service-card p{color:#657981;font-size:14px;line-height:1.9;margin:0}.service-feature p{color:#b5c6cb}.service-card>a{position:absolute;bottom:22px;left:21px;font-size:24px;text-decoration:none;color:var(--red)}.projects{background:var(--pale)}.projects-heading{margin-bottom:45px}.project-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr;grid-template-rows:280px 210px;gap:14px}.project-card{position:relative;min-height:210px;overflow:hidden;background-color:var(--navy);background-size:cover;background-position:center;isolation:isolate}.project-card:before{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(4,14,21,.9),rgba(4,14,21,.02) 70%);z-index:-1}.project-large{grid-row:span 2;background-image:url('assets/hero-hvac.png');background-position:70% center}.project-mid{background-image:linear-gradient(135deg,#0a9ed0,#071420 72%)}.project-small{background-image:linear-gradient(135deg,#ed2343,#271421 72%)}.project-overlay{position:absolute;inset:0;padding:24px;color:#fff;display:flex;flex-direction:column;justify-content:end}.project-overlay span{font-size:11px;color:#8edaf0;letter-spacing:.1em;text-transform:uppercase}.project-overlay h3{font-size:25px;line-height:1.3;margin:5px 0}.project-overlay p{font-size:13px;color:#d3dfe2;max-width:260px;line-height:1.6;margin:0}.project-overlay a{position:absolute;left:22px;top:20px;color:#fff;text-decoration:none;font-size:24px}.contact{background:var(--navy);color:#fff}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:110px;align-items:start}.contact-copy{padding-top:5px}.contact-copy h2{font-size:clamp(42px,5vw,68px)}.contact-copy>p:not(.eyebrow){color:#a9bdc4}.contact-details{margin-top:45px;display:grid;gap:23px}.contact-details>a,.contact-details>div{color:#fff;text-decoration:none;display:flex;gap:14px;align-items:flex-start}.detail-icon{width:34px;height:34px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.3);border-radius:50%;color:#7cdbf0;font-size:15px;flex:none}.contact-details small,.contact-details b{display:block}.contact-details small{color:#8ba2aa;font-size:11px;margin-bottom:2px}.contact-details b{font-size:14px;font-weight:600;max-width:340px;line-height:1.7}.contact-form{background:#fff;color:var(--ink);padding:31px;border-radius:4px;box-shadow:var(--shadow)}.contact-form label{display:block;font-size:13px;font-weight:700;margin-bottom:21px}.contact-form input,.contact-form select,.contact-form textarea{display:block;width:100%;margin-top:7px;border:0;border-bottom:1px solid var(--line);padding:10px 0;color:var(--ink);font:inherit;font-size:14px;background:transparent;outline:none;resize:vertical}.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:var(--blue)}.contact-form select{appearance:none;cursor:pointer}.form-submit{width:100%;margin-top:8px}.form-note{font-size:11px;color:#7c8d92;text-align:center;margin:11px 0 0}.site-footer{background:#04101a;color:#fff;padding:50px 0 20px}.footer-main{display:flex;align-items:center;gap:40px;justify-content:space-between}.footer-brand{max-width:230px}.footer-brand img{width:165px;background:#fff;padding:6px 9px;border-radius:3px}.footer-brand p{color:#8ea4ab;font-size:12px;line-height:1.8;margin:14px 0 0}.footer-links{display:flex;gap:24px}.footer-links a{color:#b6c7cc;text-decoration:none;font-size:13px}.footer-links a:hover{color:#fff}.footer-whatsapp{display:flex;gap:18px;align-items:center;color:#fff;text-decoration:none;border-bottom:1px solid var(--red);padding-bottom:4px;font-size:13px}.footer-whatsapp b{color:var(--red);font-size:20px}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:17px;display:flex;justify-content:space-between;color:#71858d;font-size:11px}.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}.reveal.visible{opacity:1;transform:none}@media(max-width:900px){.main-nav{gap:15px}.nav-wrap{gap:20px}.nav-cta{display:none}.hero-content{gap:25px}.hero-side{display:none}.service-grid{grid-template-columns:repeat(2,1fr)}.contact-grid{gap:50px}}@media(max-width:680px){.container{width:min(100% - 32px,500px)}.topbar-inner{font-size:10px}.topbar-inner span{max-width:220px}.site-header{top:25px}.nav-wrap{justify-content:space-between}.brand{width:175px}.menu-toggle{display:block;order:2}.main-nav{position:absolute;top:59px;left:0;right:0;background:var(--navy);padding:19px;display:none;flex-direction:column;align-items:stretch;gap:12px;border:1px solid rgba(255,255,255,.15);box-shadow:var(--shadow)}.main-nav.open{display:flex}.main-nav a.active:after{display:none}.nav-actions{margin-right:auto;margin-left:10px}.language-switcher{order:1}.hero{min-height:700px}.hero-content{display:block;padding-top:120px}.hero h1{font-size:50px}.hero-text{font-size:15px}.hero-proof{gap:15px;margin-top:45px}.proof-item{font-size:10px}.hero-scroll{right:16px;bottom:20px}.section-pad{padding:78px 0}.intro-grid,.contact-grid{grid-template-columns:1fr;gap:30px}.section-label{display:none}.intro-copy h2,.section-heading h2,.contact-copy h2{font-size:38px}.section-heading{display:block;margin-bottom:30px}.section-heading>p{font-size:15px;margin-top:15px}.service-grid{grid-template-columns:1fr 1fr;gap:10px}.service-card{min-height:295px;padding:19px 15px}.service-card h3{font-size:17px}.service-card p{font-size:12px}.project-grid{grid-template-columns:1fr 1fr;grid-template-rows:260px 200px}.project-large{grid-column:span 2;grid-row:auto}.project-overlay h3{font-size:20px}.contact-form{padding:22px}.footer-main{display:grid;grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:span 2}.footer-bottom{font-size:10px}}
/* Header is intentionally separated from the hero slider. */
.site-header{position:relative;top:auto;left:auto;right:auto;color:var(--ink);background:#fff;border-bottom:1px solid var(--line);box-shadow:0 7px 22px rgba(7,20,32,.04)}
.nav-wrap{min-height:82px}
.brand{width:154px;background:#fff;padding:4px 8px;box-shadow:none}
.main-nav a,.nav-actions a{color:#53666d}
.main-nav a:hover,.main-nav a.active{color:var(--ink)}
.main-nav a.active:after{bottom:-29px}
.language-switcher{border-color:var(--line)}
.lang-btn{color:#6a7d83}
.lang-btn.active{background:var(--navy);color:#fff}
.nav-cta{border-color:var(--navy)}
.nav-cta:hover{background:var(--navy);color:#fff!important}
.menu-toggle{color:var(--ink)}
.menu-toggle span{background:var(--ink)}
.hero-content{padding-top:72px}
@media(max-width:680px){.nav-wrap{min-height:70px}.brand{width:132px}.main-nav{top:70px;background:#fff;border-color:var(--line)}.hero-content{padding-top:78px}}
/* Motion slider: the header stays independent above the hero. */
.hero{background:var(--navy);overflow:hidden}
.slider-track{position:absolute;inset:0}
.slide{position:absolute;inset:0;display:flex;align-items:center;opacity:0;visibility:hidden;pointer-events:none;transform:scale(1.025);transition:opacity .8s ease,transform 7s ease,visibility .8s;background:linear-gradient(90deg,rgba(4,16,28,.97) 0%,rgba(4,16,28,.84) 34%,rgba(4,16,28,.22) 74%,rgba(4,16,28,.5) 100%),var(--slide-image) center/cover no-repeat}
.slide.active{opacity:1;visibility:visible;pointer-events:auto;transform:scale(1)}
.slide .hero-content{position:relative;z-index:1}
.slider-controls{position:absolute;z-index:4;left:calc((100% - min(1160px,calc(100% - 48px)))/2);bottom:28px;display:flex;align-items:center;gap:13px;color:#b8c9cf;direction:ltr}
.slider-arrow{width:34px;height:34px;border:1px solid rgba(255,255,255,.35);background:rgba(4,16,28,.25);color:#fff;border-radius:50%;font:inherit;font-size:17px;cursor:pointer;transition:.2s}
.slider-arrow:hover{border-color:#fff;background:rgba(255,255,255,.12)}
.slider-dots{display:flex;gap:7px;align-items:center;margin:0 3px}.slider-dot{width:7px;height:7px;border:0;border-radius:50%;background:#6f8188;padding:0;cursor:pointer;transition:.25s}.slider-dot.active{width:24px;border-radius:10px;background:var(--blue)}.slide-count{font:600 11px 'Manrope',sans-serif;min-width:43px}
@media(max-width:680px){.slider-controls{left:16px;bottom:52px}.slider-arrow{width:31px;height:31px}.slide{background-position:60% center}.slide .hero-content{padding-top:78px}}

/* Video-first hero media with local poster fallbacks. */
.slide-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;pointer-events:none;filter:brightness(.58) saturate(.92);}
.slide-media img{width:100%;height:100%;object-fit:cover;}
.slide:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,16,28,.9) 0%,rgba(4,16,28,.68) 38%,rgba(4,16,28,.16) 78%,rgba(4,16,28,.42) 100%);z-index:0;pointer-events:none;}
.slide .hero-content,.slide .hero-glow{z-index:1;}
.project-large{background-image:url('assets/project-commercial.png');background-position:center;}
.project-mid{background-image:url('assets/project-industrial.png');}
.project-small{background-image:url('assets/project-residential.png');}
.projects-heading-side{max-width:360px;display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.projects-heading-side>p{margin:0;color:#5e7279;font-size:17px;max-width:350px;}
.admin-project-link{display:inline-flex;align-items:center;color:var(--ink);text-decoration:none;border-bottom:1px solid var(--red);padding-bottom:3px;font-size:13px;font-weight:700;}
.admin-project-link:hover{color:var(--blue);}
@media(max-width:680px){.projects-heading-side{max-width:none}.projects-heading-side>p{font-size:15px}.admin-project-link{font-size:12px}}

/* Rich service cards: image backgrounds with a branded color veil. */
.service-card{overflow:hidden;color:#fff;border-color:transparent;background-size:cover;background-position:center;isolation:isolate;}
.service-card:before{content:'';position:absolute;inset:0;background:linear-gradient(145deg,rgba(4,16,28,.96),rgba(4,16,28,.72) 52%,rgba(10,158,208,.52));z-index:-1;transition:background .3s ease;}
.service-card:nth-child(1){background-image:url('assets/project-commercial.png');}
.service-card:nth-child(2){background-image:url('assets/project-industrial.png');}
.service-card:nth-child(3){background-image:url('assets/hero-residential.png');}
.service-card:nth-child(4){background-image:url('assets/project-residential.png');}
.service-card:nth-child(2):before{background:linear-gradient(145deg,rgba(4,16,28,.96),rgba(10,78,107,.72) 55%,rgba(10,158,208,.52));}
.service-card:nth-child(3):before{background:linear-gradient(145deg,rgba(4,16,28,.96),rgba(13,45,68,.7) 52%,rgba(237,35,67,.45));}
.service-card:nth-child(4):before{background:linear-gradient(145deg,rgba(4,16,28,.96),rgba(55,18,31,.72) 55%,rgba(237,35,67,.5));}
.service-card:hover:before{background:linear-gradient(145deg,rgba(4,16,28,.84),rgba(10,158,208,.62));}
.service-card h3{position:relative;z-index:1;color:#fff;}
.service-card p{position:relative;z-index:1;color:rgba(255,255,255,.82);}
.service-card .service-number{z-index:1;color:#9bd9e9;}
.service-card .service-icon{position:relative;z-index:1;color:#77d5ee;}
.service-card>a{z-index:1;color:#ff526b;}
.service-feature{background-image:url('assets/project-commercial.png');background-color:var(--navy);}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
.whatsapp-float{position:fixed;z-index:30;right:24px;bottom:24px;width:60px;height:60px;display:grid;place-items:center;border-radius:50%;background:#25d366;color:#fff;text-decoration:none;box-shadow:0 14px 28px rgba(4,16,28,.24),0 0 0 5px rgba(37,211,102,.12);transition:transform .25s ease,box-shadow .25s ease;animation:whatsapp-pulse 2.8s infinite;}
.whatsapp-float svg{width:31px;height:31px;display:block;}
.whatsapp-float:hover{transform:translateY(-4px) scale(1.04);box-shadow:0 18px 34px rgba(4,16,28,.3),0 0 0 7px rgba(37,211,102,.16);}
body[dir="rtl"] .whatsapp-float{right:auto;left:24px;}
@keyframes whatsapp-pulse{0%,72%,100%{box-shadow:0 14px 28px rgba(4,16,28,.24),0 0 0 5px rgba(37,211,102,.12)}82%{box-shadow:0 14px 28px rgba(4,16,28,.24),0 0 0 11px rgba(37,211,102,0)}}
@media(max-width:680px){.whatsapp-float{right:16px;bottom:16px;width:54px;height:54px}.whatsapp-float svg{width:28px;height:28px}body[dir="rtl"] .whatsapp-float{right:auto;left:16px}}
@media(prefers-reduced-motion:reduce){.whatsapp-float{animation:none}}