:root{--ink:#0e1420;--ink2:#1a2232;--txt:#3c4555;--mut:#6b7486;--line:#e4e7ee;--bg:#f5f6f9;--acc:#2e3a9e;--acc2:#e53935;--grn:#2e9b4f;--r:14px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:Inter,system-ui,sans-serif;color:var(--txt);background:#fff;line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
h1,h2,h3{color:var(--ink);line-height:1.15;letter-spacing:-.02em}
.tag{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--acc)}
.tag::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--acc2),var(--grn),var(--acc))}
.sec{padding:96px 0}
.sec-h{max-width:640px;margin-bottom:48px}
.sec-h h2{font-size:clamp(28px,4vw,42px);font-weight:800;margin-top:12px}
.sec-h p{margin-top:14px;color:var(--mut)}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 26px;border-radius:999px;font-weight:600;font-size:15px;transition:.2s;border:2px solid transparent;cursor:pointer;font-family:inherit}
.btn-p{background:var(--acc);color:#fff}.btn-p:hover{background:#232d84}
.btn-o{border-color:rgba(255,255,255,.5);color:#fff}.btn-o:hover{background:#fff;color:var(--ink)}
.btn-d{border-color:var(--line);color:var(--ink);background:#fff}.btn-d:hover{border-color:var(--acc);color:var(--acc)}
/* header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo img{height:46px;width:auto}
.nav{display:flex;gap:30px;font-weight:600;font-size:14.5px;color:var(--ink)}
.nav a:hover{color:var(--acc)}
.hdr-r{display:flex;align-items:center;gap:14px}
.langs{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px}
.langs button{border:0;background:none;font:600 12.5px Inter,sans-serif;padding:6px 10px;border-radius:999px;cursor:pointer;color:var(--mut)}
.langs button.on{background:var(--ink);color:#fff}
.hdr-ph{font-weight:700;color:var(--ink);font-size:14.5px;white-space:nowrap}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;align-items:center;justify-content:center}
.burger span,.burger span::before,.burger span::after{display:block;width:18px;height:2px;background:var(--ink);position:relative;content:""}
.burger span::before{position:absolute;top:-6px}.burger span::after{position:absolute;top:6px}
/* hero */
.hero{position:relative;min-height:calc(100vh - 72px);min-height:calc(100svh - 72px);display:flex;align-items:center;color:#fff;background:var(--ink) center/cover no-repeat;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,14,24,.92) 0%,rgba(10,14,24,.7) 45%,rgba(10,14,24,.25) 100%)}
.hero .wrap{position:relative;padding-top:80px;padding-bottom:80px;width:100%}
.hero .tag{color:#c9cef5}
.hero h1{color:#fff;font-size:clamp(40px,7vw,78px);font-weight:800;text-transform:uppercase;margin:18px 0 22px;letter-spacing:-.03em;line-height:1.02}
.hero p{max-width:560px;font-size:18px;color:rgba(255,255,255,.82)}
.hero-b{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.stats{display:grid;grid-template-columns:repeat(3,auto);gap:48px;margin-top:64px;justify-content:start}
.stats b{display:block;font-size:34px;font-weight:800;color:#fff;letter-spacing:-.02em}
.stats span{font-size:14px;color:rgba(255,255,255,.65)}
/* about */
.about{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.about-img{position:relative}
.about-img img{border-radius:var(--r);aspect-ratio:1;object-fit:cover;width:100%}
.about-img .badge{position:absolute;left:-20px;bottom:30px;background:var(--ink);color:#fff;border-radius:12px;padding:18px 22px;box-shadow:0 20px 40px rgba(0,0,0,.2)}
.about-img .badge b{display:block;font-size:22px}.about-img .badge span{font-size:13px;opacity:.7}
.about h2{font-size:clamp(28px,4vw,42px);font-weight:800;margin:12px 0 20px}
.about p+p{margin-top:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.chips span{border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13.5px;font-weight:600;color:var(--ink)}
/* areas */
.bg{background:var(--bg)}
.areas{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.area{background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column;transition:.25s}
.area:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(14,20,32,.08)}
.area-img{aspect-ratio:16/10;overflow:hidden;background:#dde}
.area-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.area:hover .area-img img{transform:scale(1.05)}
.area-b{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.area h3{font-size:20px;font-weight:700}
.area p{font-size:15px;color:var(--mut);margin:8px 0 18px;flex:1}
.area-f{display:flex;justify-content:space-between;align-items:center;font-size:14px;font-weight:600}
.area-f a{color:var(--acc)}.area-f span{color:var(--mut);font-weight:500}
/* engineering */
.eng{display:grid;grid-template-columns:repeat(6,1fr);gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.eng div{background:#fff;padding:30px 28px}
.eng i{display:flex;width:44px;height:44px;border-radius:10px;background:#eef0fb;color:var(--acc);align-items:center;justify-content:center;font-style:normal;font-weight:800;margin-bottom:18px}
.eng h3{font-size:17.5px;font-weight:700;margin-bottom:8px}
.eng p{font-size:14.5px;color:var(--mut)}
.eng div{grid-column:span 2}.eng div:nth-child(n+4){grid-column:span 3}
/* why */
.dark{background:var(--ink);color:rgba(255,255,255,.75)}
.dark h2,.dark h3{color:#fff}.dark .tag{color:#aab2f0}.dark .sec-h p{color:rgba(255,255,255,.6)}
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.why div{border-top:2px solid rgba(255,255,255,.15);padding-top:24px}
.why b{font-size:14px;color:#aab2f0}
.why h3{font-size:19px;margin:10px 0}
.why p{font-size:15px}
/* projects */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px}
.tabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 18px;font:600 14px Inter,sans-serif;color:var(--ink);cursor:pointer;transition:.2s}
.tabs button:hover{border-color:var(--acc)}
.tabs button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.tabs button small{opacity:.55;margin-left:4px;font-weight:500}
.projs{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:20px}
.proj{cursor:pointer;border-radius:var(--r);overflow:hidden;position:relative;aspect-ratio:4/3;background:#cfd3dc}
.proj img{width:100%;height:100%;object-fit:cover;transition:.5s}
.proj:hover img{transform:scale(1.06)}
.proj::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(8,12,20,.85))}
.proj div{position:absolute;left:0;right:0;bottom:0;padding:18px 20px;z-index:1;color:#fff}
.proj h3{color:#fff;font-size:17px;font-weight:700;letter-spacing:-.01em}
.proj span{font-size:13px;opacity:.75}
/* license */
.lic{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:center}
.lic-img{cursor:zoom-in;border:1px solid var(--line);border-radius:var(--r);padding:12px;background:#fff;box-shadow:0 20px 40px rgba(14,20,32,.06)}
.lic-img small{display:block;text-align:center;color:var(--mut);font-size:13px;margin-top:10px}
.lic h2{font-size:clamp(28px,4vw,40px);font-weight:800;margin:12px 0 18px}
.lic dl{margin:24px 0;border-top:1px solid var(--line)}
.lic dl div{display:grid;grid-template-columns:200px 1fr;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.lic dt{color:var(--mut)}.lic dd{color:var(--ink);font-weight:600}
/* contact */
.contact{display:grid;grid-template-columns:1fr 1.1fr;gap:48px}
.cinfo{display:grid;gap:14px;margin:28px 0}
.cinfo a,.cinfo div{display:flex;gap:16px;align-items:flex-start;padding:18px 20px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:.2s}
.cinfo a:hover{border-color:var(--acc)}
.cinfo i{flex:none;width:40px;height:40px;border-radius:10px;background:#eef0fb;color:var(--acc);display:flex;align-items:center;justify-content:center}
.cinfo small{display:block;color:var(--mut);font-size:13px}
.cinfo b{color:var(--ink);font-weight:600}
.map{border-radius:var(--r);overflow:hidden;min-height:420px;border:1px solid var(--line)}
.map iframe{width:100%;height:100%;min-height:420px;border:0;display:block}
.cbtn{display:flex;gap:12px;flex-wrap:wrap}
.btn-wa{background:#25d366;color:#fff}.btn-wa:hover{background:#1fb457}
/* footer */
.ftr{background:var(--ink);color:rgba(255,255,255,.6);padding:56px 0 30px;font-size:14.5px}
.ftr-t{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1)}
.ftr-logo{background:#fff;border-radius:10px;padding:8px 12px;display:inline-block}
.ftr-logo img{height:40px}
.ftr p{max-width:340px;margin-top:14px}
.ftr nav{display:flex;gap:24px;flex-wrap:wrap;color:#fff;font-weight:500}
.ftr-b{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:24px;font-size:13.5px}
/* lightbox */
.lb{position:fixed;inset:0;z-index:100;background:rgba(6,9,15,.96);display:none;flex-direction:column}
.lb.on{display:flex}
.lb-top{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;color:#fff;gap:16px}
.lb-top h3{color:#fff;font-size:16px;font-weight:600}
.lb-top span{opacity:.6;font-size:14px;margin-left:10px}
.lb-x,.lb-n{background:rgba(255,255,255,.1);border:0;color:#fff;width:46px;height:46px;border-radius:50%;cursor:pointer;font-size:22px;display:flex;align-items:center;justify-content:center;flex:none}
.lb-x:hover,.lb-n:hover{background:rgba(255,255,255,.22)}
.lb-m{flex:1;display:flex;align-items:center;justify-content:center;gap:12px;padding:0 16px;min-height:0}
.lb-m img{max-height:100%;max-width:calc(100% - 130px);object-fit:contain;border-radius:6px}
.lb-th{display:flex;gap:8px;padding:16px 20px;overflow-x:auto;justify-content:center}
.lb-th img{width:72px;height:54px;object-fit:cover;border-radius:6px;opacity:.45;cursor:pointer;flex:none;border:2px solid transparent}
.lb-th img.on{opacity:1;border-color:#fff}
/* responsive */
@media (max-width:1000px){
 .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:8px 20px 16px}
 .nav.open{display:flex}.nav a{padding:12px 0;border-bottom:1px solid var(--line)}
 .burger{display:flex}.hdr-ph{display:none}
 .about,.lic,.contact{grid-template-columns:1fr;gap:40px}
 .areas{grid-template-columns:1fr 1fr}.why{grid-template-columns:1fr 1fr}
 .about-img .badge{left:16px}
 .eng{grid-template-columns:1fr 1fr}.eng div,.eng div:nth-child(n+4){grid-column:auto}.eng div:last-child{grid-column:span 2}
}
@media (max-width:640px){
 .sec{padding:68px 0}.wrap{padding:0 16px}
 .areas,.why{grid-template-columns:1fr}
 .stats{gap:24px;grid-template-columns:repeat(3,1fr)}.stats b{font-size:24px}.stats span{font-size:12.5px}
 .hero p{font-size:16px}
 .lic dl div{grid-template-columns:1fr;gap:2px}
 .lb-n{position:absolute;bottom:96px;z-index:2}.lb-p{left:16px}.lb-nx{right:16px}
 .lb-m img{max-width:100%}
 .logo img{height:38px}
 .eng{grid-template-columns:1fr}.eng div:last-child{grid-column:auto}
}

.nav a.on,.dd.act>.dd-t{color:var(--acc)}
.dd{position:relative;display:flex;align-items:center;height:72px;cursor:pointer}
.dd-t{display:flex;align-items:center;gap:6px}
.dd-m{display:none;position:absolute;top:60px;left:-18px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 20px 40px rgba(14,20,32,.12);padding:8px;min-width:270px;flex-direction:column}
.dd:hover .dd-m,.dd.open .dd-m{display:flex}
.dd-m a{padding:10px 14px;border-radius:8px;font-weight:500}
.dd-m a:hover,.dd-m a.on{background:var(--bg);color:var(--acc)}
.area .lnk{color:var(--acc)}
.ph{position:relative;background:var(--ink) center/cover no-repeat;color:#fff;padding:110px 0 72px}
.ph::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,14,24,.93),rgba(10,14,24,.62))}
.ph .wrap{position:relative}
.ph h1{color:#fff;font-size:clamp(32px,5vw,56px);font-weight:800;margin:14px 0 12px}
.ph p{max-width:660px;color:rgba(255,255,255,.8);font-size:17px}
.crumb{font-size:13.5px;color:rgba(255,255,255,.6)}.crumb a:hover{color:#fff}
.cta{background:linear-gradient(110deg,#1b2470,#2e3a9e);color:#fff;padding:64px 0}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:clamp(26px,3.4vw,36px);font-weight:800}
.cta p{color:rgba(255,255,255,.8);margin-top:8px}
.cta .btn-p{background:#fff;color:var(--ink)}.cta .btn-p:hover{background:#e9ebf7}
.pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:34px}
.pills a{border:1px solid var(--line);border-radius:999px;padding:10px 18px;font-weight:600;font-size:14px;color:var(--ink);transition:.2s}
.pills a:hover{border-color:var(--acc)}.pills a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.wcat{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.wc{position:relative;aspect-ratio:4/3;border-radius:var(--r);overflow:hidden;display:block;background:#cfd3dc}
.wc img{width:100%;height:100%;object-fit:cover;transition:.5s}.wc:hover img{transform:scale(1.06)}
.wc::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(8,12,20,.88))}
.wc div{position:absolute;left:0;right:0;bottom:0;padding:22px 24px;z-index:1;color:#fff}
.wc h3{color:#fff;font-size:21px}.wc span{font-size:14px;opacity:.75}
.ftr-c{display:grid;gap:6px;font-size:14px;color:rgba(255,255,255,.75)}
@media (max-width:1000px){
 .dd{height:auto;display:block;padding:12px 0;border-bottom:1px solid var(--line)}
 .dd-m{display:flex;position:static;box-shadow:none;border:0;padding:6px 0 0 14px;min-width:0}
 .nav .dd-m a{border:0;padding:8px 0}
 .wcat{grid-template-columns:1fr 1fr}.ph{padding:80px 0 52px}
}
@media (max-width:640px){.wcat{grid-template-columns:1fr}}

.nav{align-items:center}
@media (max-width:1000px){.nav{align-items:stretch}}

.soc{display:flex;gap:8px;flex-wrap:wrap}
.soc a{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);color:var(--ink);transition:.2s;background:#fff}
.soc a:hover{background:var(--acc);border-color:var(--acc);color:#fff}
.soc.dk{margin-top:20px}.soc.dk a{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12);color:#fff}
.soc.dk a:hover{background:#fff;color:var(--ink)}
.soc.hd{gap:2px}.soc.hd a{width:32px;height:32px;border:0;background:none;color:var(--mut)}.soc.hd a:hover{color:var(--acc);background:var(--bg)}
.soc.hd svg{width:16px;height:16px}
.so-b{margin-top:28px}.so-b small{display:block;color:var(--mut);font-size:13px;margin-bottom:10px;font-weight:600;text-transform:uppercase;letter-spacing:.08em}
@media (max-width:1280px){.soc.hd{display:none}}

.ftr-c{align-content:start;gap:10px}

.langs button{display:flex;align-items:center;gap:6px;padding:5px 10px}
.flag{width:20px;height:13px;border-radius:2px;box-shadow:0 0 0 1px rgba(0,0,0,.12);flex:none;display:block}
.langs button:not(.on){opacity:.75}.langs button:hover{opacity:1}
@media (max-width:640px){.langs button span{display:none}.langs button{padding:6px 7px}}