:root{--navy:#071b33;--navy2:#0c2d4d;--blue:#126da6;--cyan:#22a9e0;--gold:#f4a900;--ink:#17212b;--muted:#64727e;--line:#dce5eb;--light:#f3f7f9;--white:#fff;--shadow:0 24px 70px rgba(7,27,51,.13);--wrap:min(1180px,calc(100% - 40px))}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:#fff;font-family:Montserrat,"Segoe UI",Arial,sans-serif;line-height:1.55}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
.skip-link{position:fixed;z-index:1000;top:8px;left:8px;padding:10px 14px;background:#fff;transform:translateY(-160%)}
.skip-link:focus{transform:none}
.wrap{width:var(--wrap);margin-inline:auto}
.site-header{height:82px;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.96);border-bottom:1px solid rgba(7,27,51,.08);position:sticky;top:0;z-index:50;backdrop-filter:blur(15px)}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{display:block;width:245px;max-width:42vw;height:auto}
.hero-content>.brand-logo{background:#fff;padding:9px 12px;margin-bottom:34px}
.brand-mark{font-size:1.5rem;font-weight:900;letter-spacing:-.08em;color:var(--navy)}
.brand-mark::first-letter{color:var(--cyan)}
.brand-copy{display:grid;line-height:1.05;text-transform:uppercase}
.brand-copy strong{font-size:.8rem;letter-spacing:.1em}
.brand-copy small{font-size:.64rem;letter-spacing:.28em;color:var(--blue);margin-top:3px}
.site-header nav{display:flex;align-items:center;gap:28px}
.site-header nav a{font-weight:650;font-size:.89rem}
.site-header nav a:not(.nav-cta):hover{color:var(--blue)}
.nav-cta{background:var(--navy);color:#fff;padding:11px 17px}
.menu-toggle{display:none;border:0;background:var(--navy);color:white;padding:9px 13px}
.hero{min-height:790px;position:relative;background:var(--navy);color:#fff;display:grid;align-items:center;overflow:hidden}
.hero-image,.hero-overlay{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-image{filter:saturate(.7) contrast(1.08)}
.hero-overlay{background:linear-gradient(90deg,rgba(4,20,37,.98) 0%,rgba(7,27,51,.88) 43%,rgba(7,27,51,.25) 78%,rgba(7,27,51,.05) 100%)}
.hero-content{position:relative;z-index:1;padding:80px 0}
.eyebrow{text-transform:uppercase;letter-spacing:.22em;font-size:.73rem;font-weight:800;color:#a9dff6;margin:0 0 16px}
.eyebrow.dark{color:var(--blue)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(3.6rem,7vw,7.5rem);line-height:.89;letter-spacing:-.065em;max-width:950px;margin-bottom:28px}
h1 em{font-style:normal;color:var(--cyan)}
.hero-lead{font-size:clamp(1.05rem,1.6vw,1.28rem);max-width:680px;color:#d7e4ec}
.hero-actions{display:flex;gap:12px;margin:32px 0 60px}
.button{display:inline-flex;justify-content:center;align-items:center;min-height:50px;padding:12px 22px;font-weight:800;border:1px solid transparent;cursor:pointer}
.button-primary{background:var(--gold);color:#17212b}
.button-primary:hover{background:#ffc036}
.button-ghost{border-color:rgba(255,255,255,.55);color:white}
.button-ghost:hover{background:#fff;color:var(--navy)}
.proof-strip{display:flex;gap:0;margin:0}
.proof-strip div{padding:0 30px;border-left:1px solid rgba(255,255,255,.3)}
.proof-strip div:first-child{padding-left:0;border:0}
.proof-strip dt{text-transform:uppercase;letter-spacing:.12em;font-size:.65rem;color:#a9bac7}
.proof-strip dd{margin:2px 0 0;font-size:1.05rem;font-weight:800}
.client-band{text-align:center;padding:24px 20px;border-bottom:1px solid var(--line)}
.client-band p,.client-band small{color:var(--muted);font-size:.78rem}
.client-list{display:flex;justify-content:center;flex-wrap:wrap;gap:14px 31px;margin:12px 0;font-weight:900;letter-spacing:.02em;color:#5c6873}
.section{padding:110px 0}
.section-heading{max-width:760px;margin-bottom:55px}
.section-heading h2,.sector-banner h2,.contact h2,.assurance h2{font-size:clamp(2.4rem,4.5vw,4.4rem);line-height:1;letter-spacing:-.05em;color:var(--navy);margin-bottom:0}
.split-heading{max-width:none;display:grid;grid-template-columns:1.2fr .8fr;gap:80px;align-items:end}
.split-heading>p{color:var(--muted);font-size:1.03rem;margin:0}
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:90px}
.about-copy .lead{font-size:1.42rem;line-height:1.45;color:var(--navy);font-weight:650}
.about-copy>p:not(.lead){color:var(--muted)}
.text-link{display:inline-block;margin-top:20px;color:var(--blue);font-weight:800}
.text-link span{padding-left:8px}
.trust-panel{background:var(--navy);color:#fff;padding:42px;box-shadow:var(--shadow)}
.panel-kicker{text-transform:uppercase;letter-spacing:.15em;color:var(--cyan);font-size:.74rem;font-weight:800}
.trust-panel ul{list-style:none;padding:0;margin:0}
.trust-panel li{padding:18px 0;border-top:1px solid rgba(255,255,255,.15)}
.trust-panel li strong,.trust-panel li span{display:block}
.trust-panel li span{font-size:.9rem;color:#bfcdd7;margin-top:3px}
.services{background:var(--light)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #cbd8df;border-left:1px solid #cbd8df}
.service-grid article{min-height:260px;padding:34px;border-right:1px solid #cbd8df;border-bottom:1px solid #cbd8df;background:#fff}
.service-grid article span{color:var(--gold);font-size:.78rem;font-weight:900}
.service-grid h3{font-size:1.35rem;color:var(--navy);margin:48px 0 9px}
.service-grid p{font-size:.92rem;color:var(--muted)}
.service-grid .sand-service{grid-column:span 3;min-height:0;background:var(--navy);color:#fff}
.service-grid .sand-service h3{color:#fff;margin-top:24px}
.service-grid .sand-service p{max-width:820px;color:#c9d8e2}
.service-grid .sand-service .text-link{color:var(--cyan);margin-top:8px}
.sand-supply{background:var(--navy);color:#dce8ef}
.sand-overview{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center}
.sand-copy h2,.sand-trade h3{color:#fff}
.sand-copy .lead{font-size:1.23rem;line-height:1.55;color:#fff;font-weight:650}
.sand-copy>p:not(.eyebrow):not(.lead){color:#b8c9d5}
.sand-copy .button{margin-top:18px}
.sand-visual{margin:0;position:relative;box-shadow:0 24px 70px rgba(0,0,0,.3)}
.sand-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
.sand-visual figcaption{position:absolute;left:0;right:0;bottom:0;padding:13px 17px;background:rgba(4,20,37,.86);color:#dce8ef;font-size:.72rem;letter-spacing:.04em}
.sand-size-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:64px;border-top:1px solid rgba(255,255,255,.2);border-left:1px solid rgba(255,255,255,.2)}
.sand-size-grid article{padding:32px;border-right:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.035)}
.sand-size-grid article>span{color:var(--gold);font-size:.72rem;font-weight:900}
.sand-size-grid .size{font-size:2rem;color:var(--cyan);font-weight:900;margin:26px 0 1px}
.sand-size-grid h3{color:#fff;font-size:1.25rem;margin:0 0 10px}
.sand-size-grid article>p:last-child{font-size:.88rem;color:#b8c9d5;margin:0}
.sand-trade{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;margin-top:64px;padding-top:44px;border-top:1px solid rgba(255,255,255,.2)}
.sand-trade h3{font-size:1.8rem;max-width:470px}
.sand-trade>div:last-child>p{margin-top:0}
.sand-spec-note{font-size:.76rem;color:#9fb4c2}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filter{border:1px solid var(--line);background:#fff;padding:9px 15px;color:var(--muted);cursor:pointer}
.filter.active,.filter:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.project-card{position:relative;background:var(--navy);min-height:390px;overflow:hidden;cursor:pointer;box-shadow:0 8px 30px rgba(7,27,51,.08)}
.project-card.feature{grid-column:span 2}
.project-card img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;transition:transform .5s ease}
.project-card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,27,51,.95),transparent 70%)}
.project-card div{position:absolute;z-index:2;left:25px;right:25px;bottom:22px;color:#fff}
.project-card span{font-size:.7rem;text-transform:uppercase;letter-spacing:.15em;color:#a9dff6;font-weight:800}
.project-card h3{font-size:1.42rem;margin:4px 0 1px}
.project-card p{font-size:.83rem;color:#cbd8e0;margin:0}
.project-card:hover img,.project-card:focus img{transform:scale(1.045)}
.project-card[hidden]{display:none}
.portfolio-note{font-size:.78rem;color:var(--muted);margin-top:24px;max-width:860px}
.sector-banner{background:var(--navy);color:#fff;padding:90px 0}
.sector-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}
.sector-banner h2,.contact h2,.assurance h2{color:#fff}
.sector-grid ul{columns:2;list-style:none;padding:0}
.sector-grid li{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.16);font-weight:700}
.leader-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;max-width:820px}
.leader-grid article{background:var(--light)}
.leader-grid img{width:100%;aspect-ratio:1.1/1;object-fit:cover;object-position:top}
.leader-grid article div{padding:26px}
.leader-grid article p{color:var(--blue);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;font-weight:800;margin-bottom:5px}
.leader-grid h3{font-size:1.4rem;color:var(--navy);margin-bottom:8px}
.leader-grid span{display:block;color:var(--muted);font-size:.9rem}
.assurance{background:var(--navy2);color:#dce8ef}
.assurance-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.assurance img{box-shadow:var(--shadow)}
.assurance p:not(.eyebrow){max-width:590px}
.assurance .button{margin-top:15px}
.contact{background:#071624;color:#d7e4ec}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px}
.contact address{display:grid;gap:9px;font-style:normal;margin-top:35px}
.contact address a{font-weight:800;color:#fff}
.contact address span{max-width:430px;color:#a8b9c5}
.contact form{background:#fff;color:var(--ink);padding:36px;box-shadow:var(--shadow)}
.contact label{display:grid;gap:6px;font-size:.78rem;font-weight:800;margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
input,select,textarea{width:100%;border:1px solid #cad6de;background:#f9fbfc;padding:12px;color:var(--ink)}
textarea{resize:vertical}
.contact form .button{width:100%;border:0}
.contact form small{display:block;color:var(--muted);margin-top:10px}
.hidden{position:absolute;left:-9999px}
.site-footer{background:#030d16;color:#8fa4b4;padding:30px 0}
.site-footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px}
.site-footer p{font-size:.78rem;margin:0}
.footer-logo-wrap{background:#fff;padding:8px 12px;border-radius:2px}
.footer-logo{width:210px;max-width:52vw}
.viber-inline{color:#a99dff!important;font-weight:800}
.viber-support{position:fixed;z-index:70;right:22px;bottom:22px;display:flex;align-items:center;gap:11px;padding:10px 15px 10px 10px;background:#7360f2;color:#fff;border-radius:999px;box-shadow:0 16px 45px rgba(49,34,139,.35);transition:transform .2s ease,box-shadow .2s ease}
.viber-support:hover,.viber-support:focus-visible{transform:translateY(-3px);box-shadow:0 20px 55px rgba(49,34,139,.46)}
.viber-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:#fff;color:#7360f2;font-weight:900;font-size:1.15rem}
.viber-label{display:grid;line-height:1.05}
.viber-label strong{font-size:.78rem}
.viber-label small{margin-top:4px;color:#e8e4ff;font-size:.68rem}
.project-dialog{width:min(1000px,92vw);border:0;padding:0;background:#071b33;color:#fff;box-shadow:0 30px 100px rgba(0,0,0,.5)}
.project-dialog::backdrop{background:rgba(0,0,0,.85)}
.project-dialog img{width:100%;max-height:80vh;object-fit:contain;background:#fff}
.project-dialog p{padding:13px 20px;margin:0;font-weight:800}
.project-dialog button{position:absolute;right:10px;top:10px;border:0;background:#fff;width:40px;height:40px;font-size:1.7rem;cursor:pointer}
@media(max-width:900px){.site-header nav{display:none;position:absolute;top:81px;left:0;right:0;padding:24px;background:#fff;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
.site-header nav.open{display:flex}
.menu-toggle{display:block}
.hero{min-height:720px}
.proof-strip{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.proof-strip div{padding:0;border:0}
.split-heading,.about-grid,.sector-grid,.assurance-grid,.contact-grid,.sand-overview,.sand-trade{grid-template-columns:1fr;gap:40px}
.service-grid{grid-template-columns:1fr 1fr}
.service-grid .sand-service{grid-column:span 2}
.sand-size-grid{grid-template-columns:1fr 1fr}
.project-grid{grid-template-columns:1fr 1fr}
.project-card.feature{grid-column:span 2}
.leader-grid{grid-template-columns:1fr 1fr}
.site-footer .wrap{align-items:flex-start;flex-direction:column}
}
@media(max-width:600px){:root{--wrap:min(100% - 28px,1180px)}
.site-header{height:70px;padding:0 14px}
.site-header nav{top:69px}
.hero{min-height:760px}
.hero-content{padding:60px 0}
.hero-overlay{background:linear-gradient(90deg,rgba(4,20,37,.96),rgba(7,27,51,.76))}
h1{font-size:3.55rem}
.hero-actions{flex-direction:column;margin-bottom:45px}
.section{padding:78px 0}
.section-heading{margin-bottom:35px}
.service-grid,.project-grid,.leader-grid{grid-template-columns:1fr}
.service-grid .sand-service{grid-column:auto}
.sand-size-grid{grid-template-columns:1fr}
.viber-support{right:14px;bottom:14px;padding-right:10px}
.viber-label{display:none}
.service-grid article{min-height:220px}
.project-card.feature{grid-column:auto}
.project-card{min-height:360px}
.sector-grid ul{columns:1}
.field-row{grid-template-columns:1fr}
.contact form{padding:24px}
.client-list{gap:9px 18px}
}