:root{
  --bg:#fff;--surface:#fff;--surface-2:#f7f9fc;--text:#10233e;--muted:#607086;
  --line:#dfe6ef;--primary:#064c96;--primary-2:#003b78;--accent:#ffc400;--accent-2:#f0ae00;
  --shadow:0 18px 50px rgba(25,55,90,.10);--radius:18px;--container:1320px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.5}
body.modal-open{overflow:hidden}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}
button{cursor:pointer}.container{width:min(var(--container),calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-row{height:92px;display:flex;align-items:center;gap:34px}.logo{display:flex;align-items:center;gap:10px;min-width:255px}
.logo strong{font-size:39px;line-height:1;letter-spacing:-2px;color:var(--primary);font-weight:900}.logo span{font-size:21px;font-weight:700;line-height:1.05;text-transform:none}
.logo small{display:block;margin-top:5px;font-size:8px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.desktop-nav{display:flex;align-items:center;gap:34px;margin:auto}.desktop-nav a{position:relative;padding:34px 0 31px;font-size:14px;font-weight:700}
.desktop-nav a:after{content:"";position:absolute;left:0;right:0;bottom:19px;height:2px;background:var(--primary);transform:scaleX(0);transition:.2s}
.desktop-nav a:hover:after,.desktop-nav a.active:after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:22px}.phone{display:flex;align-items:center;gap:10px;font-weight:800;white-space:nowrap}.phone svg{width:23px;height:23px;fill:none;stroke:var(--primary);stroke-width:1.8}.phone small{display:block;font-size:11px;font-weight:500;color:var(--muted)}
.btn{min-height:48px;border:0;border-radius:8px;padding:0 26px;display:inline-flex;align-items:center;justify-content:center;gap:12px;font-weight:800;transition:.2s}
.btn svg,.link-button svg,.section-heading>a svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,55,120,.18)}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}
.btn-secondary{background:#fff;color:var(--primary);border:1px solid var(--primary)}.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#161b20}
.mobile-phone,.menu-toggle,.mobile-menu{display:none}
.hero{padding:0 0 38px;background:linear-gradient(180deg,#fff,#fbfdff)}
.hero-grid{min-height:560px;display:grid;grid-template-columns:1.07fr .93fr;align-items:stretch}
.hero-copy{padding:68px 28px 34px 0;position:relative;z-index:2}.eyebrow{margin:0 0 22px;text-transform:uppercase;letter-spacing:.06em;color:var(--primary);font-size:13px;font-weight:900}
h1{font-size:52px;line-height:1.1;letter-spacing:-.032em;margin:0 0 24px;max-width:760px}.hero-mobile-title{display:none}
.lead{font-size:17px;color:var(--muted);max-width:660px;margin:0 0 30px}.hero-buttons{display:flex;gap:16px}
.hero-media{position:relative;overflow:hidden;min-height:560px;clip-path:polygon(17% 0,100% 0,100% 100%,31% 100%,0 50%)}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center}.hero-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.08),transparent 35%)}
.shape{position:absolute;z-index:2;border:1px solid rgba(255,255,255,.9);transform:rotate(45deg)}.shape-one{width:240px;height:240px;left:-120px;top:35px;background:rgba(220,233,248,.6)}.shape-two{width:360px;height:360px;right:-190px;bottom:-180px;background:linear-gradient(135deg,#0b5ca8,#003769)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:-18px;position:relative;z-index:3}
.stats article{min-height:88px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;gap:18px;padding:18px 22px;box-shadow:0 12px 28px rgba(24,54,86,.05)}
.stats svg{width:42px;height:42px;fill:none;stroke:var(--primary);stroke-width:1.5}.stats strong{display:block;font-size:23px}.stats span{display:block;color:var(--muted);font-size:14px}
.section{padding:76px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px;gap:30px}.section-heading span{font-size:18px;font-weight:800}
.section-heading h2{font-size:34px;line-height:1.15;margin:7px 0 0;letter-spacing:-.02em}.section-heading>a,.link-button{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:800;background:none;border:0}
.service-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}.service-card{position:relative;min-height:270px;border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:23px;transition:.25s}
.service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#b8cbe1}.service-card i{width:62px;height:62px;border-radius:50%;display:grid;place-items:center;background:#edf3fa;color:var(--primary);font-style:normal}
.service-card i svg{width:34px;height:34px;fill:none;stroke:currentColor;stroke-width:1.5}.service-card h3{font-size:16px;line-height:1.25;margin:18px 0 11px}.service-card p{font-size:13px;color:var(--muted);margin:0 0 18px}
.service-card>a{position:absolute;right:17px;bottom:15px;color:var(--primary)}.service-card>a svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.8}
.calc-section{background:var(--surface-2)}.calc-card{display:grid;grid-template-columns:1.28fr .72fr;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.calc-form{padding:42px}.calc-form h2{font-size:34px;margin:0 0 26px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
label{display:grid;gap:8px;font-size:13px;font-weight:700;color:var(--muted)}select,input,textarea{width:100%;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:8px;padding:13px 14px;outline:none}
select:focus,input:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(5,76,150,.12)}.calc-button{width:100%;margin-top:20px}.calc-form small,.modal small{display:block;color:var(--muted);margin-top:12px}
.calc-result{background:linear-gradient(145deg,#0a2847,#06396c);color:#fff;padding:42px;display:flex;flex-direction:column;justify-content:center}.calc-icon{width:48px;height:48px;fill:none;stroke:var(--accent);stroke-width:1.5;margin-bottom:20px}
.calc-result span{display:block;color:#c5d2e0}.calc-result strong{display:block;font-size:45px;color:var(--accent);margin:4px 0 22px}.calc-result ul,.tender ul{list-style:none;padding:0;margin:0 0 26px}
.calc-result li,.tender li{display:flex;gap:10px;align-items:center;margin:10px 0}.calc-result li svg,.tender li svg{width:18px;height:18px;fill:none;stroke:var(--accent);stroke-width:2}
.projects{background:#fff}.project-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.project-grid article{overflow:hidden;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
.project-grid img{width:100%;height:190px;object-fit:cover}.project-grid article>div{padding:19px}.project-grid h3{margin:0 0 7px;font-size:18px}.project-grid p{color:var(--muted);font-size:14px;margin:0 0 14px}.project-grid span{font-size:12px;color:var(--primary);font-weight:800}
.about{background:var(--surface-2)}.advantage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--line)}
.advantage-grid article{background:var(--surface);padding:32px}.advantage-grid svg{width:46px;height:46px;fill:none;stroke:var(--primary);stroke-width:1.45}.advantage-grid h3{font-size:17px;margin:18px 0 7px}.advantage-grid p{margin:0;color:var(--muted);font-size:14px}
.tender{padding-top:48px}.tender-card{border-radius:var(--radius);padding:42px 50px;background:linear-gradient(120deg,#0d3158,#061f38);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:50px}
.tender-copy{max-width:850px}.tender h2{font-size:34px;line-height:1.18;margin:0 0 14px}.tender p{color:#c7d4e1}.tender ul{display:flex;gap:26px;flex-wrap:wrap;margin-bottom:0}.tender li{font-size:14px}
footer{background:#06131e;color:#fff;padding:48px 0 18px;margin-top:60px}.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr .85fr;gap:44px}.footer-logo strong{color:var(--accent)}.footer-logo small{color:#94a4b5}
footer h3{margin:0 0 13px;font-size:15px}footer a,footer p{display:block;color:#b7c4d1;margin:5px 0;font-size:14px}.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding-top:17px;color:#8092a3;font-size:12px}
.modal{position:fixed;inset:0;z-index:100;display:none}.modal.open{display:block}.modal-backdrop{position:absolute;inset:0;background:rgba(2,10,18,.72);backdrop-filter:blur(5px)}
.modal-dialog{position:relative;width:min(520px,calc(100% - 28px));max-height:calc(100vh - 36px);overflow:auto;margin:18px auto;background:var(--surface);border-radius:18px;padding:36px;color:var(--text);box-shadow:0 30px 90px rgba(0,0,0,.35)}
.modal-dialog h2{font-size:30px;margin:0 0 10px}.modal-dialog>p:not(.eyebrow){color:var(--muted)}.modal-close{position:absolute;right:16px;top:16px;width:38px;height:38px;border:0;border-radius:50%;background:var(--surface-2);color:var(--text)}
.modal-close svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2}.modal form{display:grid;gap:15px;margin-top:22px}.form-success{padding:28px 0}.form-success strong{font-size:25px;color:var(--primary)}
@media(max-width:1180px){
  .desktop-nav{gap:19px}.phone span{display:none}.logo{min-width:225px}.service-grid{grid-template-columns:repeat(3,1fr)}
  .service-card{min-height:225px}.hero-grid{grid-template-columns:1fr 1fr}h1{font-size:44px}.project-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:760px){
  :root{--bg:#08131b;--surface:#111e27;--surface-2:#0b1821;--text:#f5f7f9;--muted:#aeb9c3;--line:#2a3842;--primary:#ffc400;--primary-2:#eca900;--accent:#ffc400;--accent-2:#f1ad00;--shadow:0 18px 46px rgba(0,0,0,.28)}
  body{background:var(--bg)}.container{width:min(100% - 28px,680px)}.site-header{background:rgba(8,19,27,.96);border-bottom-color:#26343e}
  .header-row{height:78px}.logo{min-width:0;gap:7px}.logo strong{font-size:31px;color:#fff}.logo span{font-size:14px;color:#fff}.logo small{display:none}
  .desktop-nav,.phone,.header-actions>.btn{display:none}.header-actions{margin-left:auto;gap:10px}.mobile-phone,.menu-toggle{display:grid;place-items:center;border:0;border-radius:10px;width:46px;height:46px}
  .mobile-phone{background:var(--accent);color:#111}.menu-toggle{background:transparent;color:#fff}.mobile-phone svg,.menu-toggle svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8}
  .mobile-menu{position:absolute;left:0;right:0;top:78px;background:#0b1821;border-bottom:1px solid var(--line);padding:16px 14px 22px;display:none;grid-template-columns:1fr 1fr;gap:8px}
  .mobile-menu.open{display:grid}.mobile-menu a{padding:12px;border:1px solid var(--line);border-radius:8px}.mobile-menu .btn{grid-column:1/-1;margin-top:6px}
  .hero{padding-bottom:26px;background:var(--bg)}.hero-grid{display:block;min-height:auto;position:relative;overflow:hidden}.hero-copy{padding:44px 0 18px;min-height:570px;position:relative;z-index:2}
  .hero-copy:after{content:"";position:absolute;inset:0 -14px;background:linear-gradient(90deg,rgba(8,19,27,.98) 0%,rgba(8,19,27,.88) 48%,rgba(8,19,27,.18) 100%);z-index:-1}
  .hero .eyebrow{display:none}h1{display:none}.hero-mobile-title{display:block;font-size:37px;line-height:1.14;font-weight:900;letter-spacing:-.03em;max-width:430px;margin:0 0 22px}
  .hero-mobile-title em{font-style:normal;color:var(--accent)}.lead{font-size:15px;max-width:390px;color:#d2d8dd}.hero-buttons{display:grid;max-width:360px}
  .hero-buttons .btn{width:100%}.hero-buttons .btn-primary{background:var(--accent);color:#15191c}.hero-buttons .btn-secondary{background:rgba(10,20,28,.75);color:#fff;border-color:var(--accent)}
  .hero-media{position:absolute;inset:0;min-height:570px;clip-path:none;z-index:0}.hero-media img{object-position:63% center;filter:saturate(.85) brightness(.76)}.hero-media:after{background:linear-gradient(180deg,rgba(8,19,27,.05),rgba(8,19,27,.45))}
  .shape{display:none}.stats{grid-template-columns:1fr 1fr;gap:8px;margin-top:0}.stats article{min-height:76px;background:#111e27;border-color:var(--line);padding:14px;gap:12px;box-shadow:none}
  .stats svg{width:32px;height:32px;stroke:var(--accent)}.stats strong{font-size:18px}.stats span{font-size:12px}.section{padding:52px 0}
  .section-heading{align-items:flex-start;margin-bottom:20px}.section-heading h2{font-size:27px}.section-heading>a,.link-button{font-size:13px}.section-heading span{font-size:15px;color:#fff}
  .service-grid{grid-template-columns:1fr 1fr;gap:9px}.service-card{min-height:210px;padding:16px;background:#111e27}.service-card i{width:48px;height:48px;background:#172731;color:var(--accent)}
  .service-card i svg{width:28px;height:28px}.service-card h3{font-size:15px;margin:14px 0 8px}.service-card p{font-size:12px}.service-card>a{color:var(--accent)}
  .calc-section{background:#08131b}.calc-card{display:block;background:#111e27;border-color:var(--line);box-shadow:none}.calc-form{padding:24px 18px}.calc-form h2{font-size:27px}
  .form-grid{grid-template-columns:1fr 1fr;gap:12px}.form-grid label{font-size:11px}.form-grid select{padding:11px 9px;background:#0d1922}.calc-result{background:#0c1a24;padding:24px 18px;border-top:1px solid var(--line)}
  .calc-result strong{font-size:39px}.calc-result .btn-primary{background:var(--accent);color:#161b20}.project-grid{grid-template-columns:1fr 1fr;gap:9px}.project-grid img{height:125px}
  .project-grid article>div{padding:13px}.project-grid h3{font-size:14px}.project-grid p{font-size:12px}.project-grid span{color:var(--accent);font-size:10px}
  .about{background:#0b1821}.advantage-grid{grid-template-columns:1fr 1fr;border-color:var(--line);background:var(--line)}.advantage-grid article{padding:20px;background:#111e27}
  .advantage-grid svg{stroke:var(--accent)}.advantage-grid h3{font-size:15px}.advantage-grid p{font-size:12px}.tender-card{display:block;padding:28px 22px;background:#111e27;border:1px solid var(--line)}
  .tender h2{font-size:27px}.tender ul{display:block}.tender .btn{width:100%;margin-top:12px}footer{margin-top:30px;background:#051018}.footer-grid{grid-template-columns:1fr 1fr;gap:26px}.footer-logo{grid-column:1/-1}
  .modal-dialog{background:#111e27}.modal-dialog input,.modal-dialog textarea{background:#0b1821}.form-success strong{color:var(--accent)}
}
@media(max-width:430px){
  .hero-mobile-title{font-size:32px}.hero-copy{min-height:540px}.hero-media{min-height:540px}.service-grid,.project-grid,.form-grid{grid-template-columns:1fr}
  .service-card{min-height:170px}.stats article{padding:12px 10px}.stats strong{font-size:16px}.section-heading{display:block}.section-heading>a,.link-button{margin-top:12px}
  .advantage-grid,.footer-grid{grid-template-columns:1fr}.tender ul{font-size:13px}.modal-dialog{padding:28px 20px}
}


/* Logo integration refinement */
.logo{display:flex;align-items:center;min-width:230px}
.logo-image{display:block;height:76px;width:auto;max-width:250px;object-fit:contain}
.footer-logo{display:flex;align-items:center}
.footer-logo-image{height:70px;max-width:230px}
@media(max-width:1180px){
  .logo{min-width:210px}
  .logo-image{height:68px;max-width:220px}
}
@media(max-width:760px){
  .logo{min-width:0}
  .logo-image{height:56px;max-width:170px;filter:brightness(0) invert(1)}
  .footer-logo-image{height:58px;max-width:180px;filter:none}
}
@media(max-width:430px){
  .logo-image{height:50px;max-width:155px}
}

/* Desktop hero polish — compact, balanced first screen */
@media (min-width:761px){
  .header-row{height:96px}
  .logo{min-width:270px}
  .logo-image{height:84px;max-width:278px}

  .hero{padding-bottom:34px}
  .hero-grid{
    min-height:520px;
    grid-template-columns:1.1fr .9fr;
    align-items:center;
    column-gap:26px;
  }
  .hero-copy{padding:48px 38px 30px 0}
  .hero-copy .eyebrow{
    margin-bottom:17px;
    font-size:11px;
    font-weight:800;
    letter-spacing:.045em;
  }
  h1{
    font-size:46px;
    line-height:1.12;
    letter-spacing:-.026em;
    margin-bottom:20px;
    max-width:680px;
  }
  .lead{font-size:15px;line-height:1.58;max-width:650px}
  .hero-buttons{margin-top:25px}
  .hero-media{
    height:490px;
    min-height:0;
    align-self:center;
    margin:14px 0 10px 18px;
  }
  .stats{margin-top:-10px}
}

@media (min-width:761px) and (max-width:1180px){
  .header-row{height:90px}
  .logo{min-width:225px}
  .logo-image{height:72px;max-width:235px}
  .hero-grid{min-height:480px;grid-template-columns:1.08fr .92fr}
  .hero-copy{padding:38px 24px 26px 0}
  .hero-copy .eyebrow{font-size:10px;margin-bottom:14px}
  h1{font-size:40px;max-width:590px}
  .hero-media{height:450px;margin-left:10px}
}