:root{
  --navy:#082f5c;
  --navy2:#041f3d;
  --blue:#0769d7;
  --blue2:#1594ff;
  --red:#ed1c24;
  --green:#20a05a;
  --ink:#102a43;
  --muted:#61758a;
  --line:#dce5ee;
  --soft:#f4f8fc;
  --white:#ffffff;
  --shadow:0 18px 50px rgba(5,40,76,.13);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.6}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,calc(100% - 42px));margin:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(8,47,92,.08)}
.nav-wrap{min-height:86px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:10px 0}
.logo-link{display:block;flex:1;min-width:0}
.logo-link img{width:min(480px,100%);max-width:100%;height:auto}
.main-nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:700;color:#29445f}
.main-nav a{position:relative;padding:10px 0}
.main-nav a:not(.nav-contact)::after{content:"";position:absolute;height:2px;width:0;left:0;bottom:4px;background:var(--red);transition:.2s}
.main-nav a:hover::after{width:100%}
.nav-contact{background:var(--navy);color:#fff;padding:11px 18px!important;border-radius:8px}
.menu-toggle{display:none;background:none;border:0;padding:6px}
.menu-toggle span{display:block;width:26px;height:2px;background:var(--navy);margin:6px 0}

.hero{position:relative;overflow:hidden;background:linear-gradient(120deg,#f7fbff 0%,#fff 64%)}
.hero-pattern{position:absolute;inset:0;pointer-events:none;opacity:.32;background-image:linear-gradient(rgba(15,92,166,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(15,92,166,.06) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to right,#000,transparent 78%)}
.hero-grid{min-height:670px;display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;padding-top:58px;padding-bottom:70px;position:relative}
.eyebrow{font-weight:850;letter-spacing:2px;font-size:12px;color:var(--red);margin:0 0 15px}
.hero h1{font-size:clamp(43px,5vw,69px);line-height:1.04;letter-spacing:-2.5px;margin:0 0 24px;color:var(--navy2);max-width:760px}
.hero-lead{font-size:19px;color:var(--muted);max-width:700px;margin:0;line-height:1.75}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:14px 22px;font-weight:800;font-size:14px;border:1px solid transparent;transition:.2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--navy);color:#fff;box-shadow:0 10px 24px rgba(8,47,92,.18)}
.btn-outline{border-color:#b7c9d9;background:#fff;color:var(--navy)}
.hero-proof{display:flex;gap:18px;flex-wrap:wrap;margin-top:26px;color:#4d647a;font-size:13px;font-weight:700}
.hero-media{position:relative}
.hero-media>img{width:100%;aspect-ratio:1/1.05;object-fit:cover;border-radius:26px;box-shadow:var(--shadow)}
.hero-media::before{content:"";position:absolute;left:-18px;bottom:-18px;width:58%;height:58%;background:var(--blue);border-radius:26px;z-index:-1;opacity:.14}
.hero-badge{position:absolute;left:-32px;bottom:34px;background:#fff;padding:18px 22px;border-radius:12px;box-shadow:0 18px 46px rgba(0,34,67,.18);display:flex;flex-direction:column;border-left:4px solid var(--red)}
.hero-badge strong{color:var(--navy);font-size:17px}
.hero-badge span{font-size:12px;color:var(--muted)}

section{scroll-margin-top:90px}
.section-heading{max-width:760px;margin-bottom:46px}
.section-heading.center{text-align:center;margin-left:auto;margin-right:auto}
.section-heading h2,.services-intro h2,.software-copy h2,.about-title h2,.contact-copy h2,.projects-grid h2{font-size:clamp(33px,4vw,48px);line-height:1.12;letter-spacing:-1.5px;margin:0 0 16px;color:var(--navy2)}
.section-heading>p:last-child{color:var(--muted);font-size:17px}

.expertises{padding:95px 0;background:#fff}
.expertise-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.expertise-card{border:1px solid var(--line);border-radius:16px;padding:25px 20px 26px;background:#fff;transition:.25s}
.expertise-card:hover{transform:translateY(-5px);box-shadow:0 18px 35px rgba(8,47,92,.09);border-color:#c5d6e5}
.expertise-card .icon{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-weight:900;font-size:25px;margin-bottom:20px;background:#eef5ff;color:var(--blue)}
.expertise-card .heat,.expertise-card .electric{color:var(--red);background:#fff0f1}
.expertise-card .energy{color:var(--green);background:#eefaf3}
.expertise-card h3{font-size:18px;line-height:1.2;margin:0 0 12px;color:var(--navy)}
.expertise-card p{font-size:14px;color:var(--muted);margin:0}

.services{padding:100px 0;background:var(--soft)}
.services-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:75px;align-items:start}
.services-intro{position:sticky;top:125px}
.services-intro>p:not(.eyebrow){color:var(--muted);font-size:17px}
.text-link{display:inline-flex;gap:8px;color:var(--blue);font-weight:800;margin-top:13px}
.text-link span{transition:.2s}.text-link:hover span{transform:translateX(5px)}
.service-list{background:#fff;border-radius:18px;box-shadow:0 12px 36px rgba(8,47,92,.06);overflow:hidden;border:1px solid #e4ebf2}
.service-list article{display:grid;grid-template-columns:54px 1fr;gap:17px;padding:26px 28px;border-bottom:1px solid #e8eef4}
.service-list article:last-child{border:0}
.service-num{font-size:12px;font-weight:900;color:var(--blue);background:#eef6ff;width:42px;height:42px;display:grid;place-items:center;border-radius:50%}
.service-list h3{margin:0 0 6px;color:var(--navy);font-size:18px}
.service-list p{margin:0;color:var(--muted);font-size:14px}

.projects-band{padding:54px 0;background:linear-gradient(115deg,var(--navy2),#0a4d87);color:#fff}
.projects-grid{display:flex;align-items:center;justify-content:space-between;gap:40px}
.projects-grid h2{color:#fff;margin:0}
.light{color:#67b9ff}
.project-types{display:flex;gap:12px;flex-wrap:wrap}
.project-types span{padding:12px 20px;border:1px solid rgba(255,255,255,.24);border-radius:999px;background:rgba(255,255,255,.08);font-weight:750}

.software{padding:100px 0;background:#fff}
.software-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:75px;align-items:center}
.app-window{border-radius:18px;background:#f7fbff;border:1px solid #d7e4f0;overflow:hidden;box-shadow:var(--shadow)}
.app-top{height:50px;background:var(--navy);display:flex;align-items:center;padding:0 18px;color:#fff;gap:8px}
.app-top i{width:9px;height:9px;border-radius:50%;background:#7ca8d0}
.app-top strong{margin-left:10px;font-size:13px}
.app-body{height:370px;position:relative;background:linear-gradient(145deg,#f8fcff,#eaf4fe);overflow:hidden}
.app-body::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(19,112,195,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(19,112,195,.08) 1px,transparent 1px);background-size:28px 28px}
.pipe{position:absolute;height:18px;border-radius:12px;background:linear-gradient(#268df0,#0869cf);box-shadow:0 4px 10px rgba(0,69,145,.2)}
.p1{width:68%;left:8%;top:28%;transform:rotate(0)}
.p2{width:48%;left:36%;top:49%;transform:rotate(90deg);background:linear-gradient(#f2464c,#d91d26)}
.p3{width:62%;left:21%;top:70%}
.node{position:absolute;width:34px;height:34px;border:8px solid #fff;border-radius:50%;background:var(--blue);box-shadow:0 2px 12px rgba(0,46,100,.18)}
.n1{left:20%;top:24%}.n2{left:66%;top:65%}.n3{left:60%;top:45%;background:var(--red)}
.calc-card{position:absolute;right:24px;top:24px;width:210px;background:#fff;border-radius:12px;padding:17px;box-shadow:0 12px 28px rgba(8,47,92,.14);display:flex;flex-direction:column}
.calc-card small{font-size:10px;letter-spacing:1.5px;color:var(--blue);font-weight:900}
.calc-card strong{color:var(--navy);margin:4px 0}
.calc-card span{font-size:11px;color:var(--muted)}
.software-copy>p:not(.eyebrow){color:var(--muted);font-size:17px}
.check-list{list-style:none;padding:0;margin:26px 0}
.check-list li{padding:9px 0 9px 30px;position:relative;font-weight:650;color:#36516b}
.check-list li::before{content:"✓";position:absolute;left:0;top:8px;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:#e9f5ff;color:var(--blue);font-size:12px;font-weight:900}
.btn-dark{background:var(--navy);color:#fff}

.about{padding:95px 0;background:var(--soft)}
.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:85px}
.about-card{background:#fff;border-radius:18px;padding:34px;border:1px solid var(--line);box-shadow:0 13px 35px rgba(8,47,92,.05)}
.about-card h3{font-size:28px;margin:0;color:var(--navy)}
.job-title{color:var(--blue)!important;font-weight:800;margin-top:3px!important}
.about-card p{color:var(--muted)}
.about-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:23px}
.about-tags span{background:#f0f6fb;border:1px solid #d9e6f1;border-radius:999px;padding:7px 12px;font-size:12px;font-weight:800;color:var(--navy)}

.contact{padding:100px 0;background:linear-gradient(120deg,#041f3d,#083f72);color:#fff}
.contact-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:72px;align-items:start}
.contact-copy h2{color:#fff}
.contact-copy>p:not(.eyebrow){color:#c6d7e8;font-size:17px}
.contact-info{margin-top:34px;display:grid;gap:14px}
.contact-info a,.info-line{display:flex;gap:13px;align-items:center}
.contact-info>a>span,.info-line>span{width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.1);display:grid;place-items:center;color:#68bbff;font-size:19px}
.contact-info small{display:block;color:#90a9c0;font-size:10px;letter-spacing:1.3px}
.contact-info strong{font-size:15px}
.contact-form{background:#fff;color:var(--ink);border-radius:18px;padding:30px;box-shadow:0 22px 50px rgba(0,0,0,.15)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form label{display:block;font-size:12px;font-weight:800;color:#36516b;margin-bottom:14px}
.contact-form input,.contact-form select,.contact-form textarea{display:block;width:100%;margin-top:6px;border:1px solid #cbd8e4;border-radius:8px;padding:12px 13px;background:#fff;color:var(--ink);outline:none}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:#5faaf1;box-shadow:0 0 0 3px rgba(34,137,231,.11)}
.contact-form textarea{resize:vertical}
.btn-form{width:100%;background:var(--red);color:#fff;border:0;cursor:pointer}
.form-note{font-size:11px;color:#7b8d9f;text-align:center;margin:10px 0 0}
.form-status{margin:10px 0 0;font-size:13px;font-weight:750;text-align:center}
.hp{position:absolute!important;left:-9999px!important}

.footer{background:#031a31;color:#d9e5f0;padding:52px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.7fr .65fr 1fr;gap:55px}
.footer-brand img{width:min(360px,100%);background:#fff;border-radius:8px;padding:7px}
.footer-brand p{color:#91a9bf;max-width:390px}
.footer-grid>div:not(.footer-brand){display:flex;flex-direction:column;gap:8px}
.footer-grid strong{color:#fff;margin-bottom:7px}
.footer-grid a,.footer-grid span{font-size:13px;color:#9fb3c6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:38px;padding-top:18px;display:flex;justify-content:space-between;color:#6f8ba5;font-size:12px}

@media(max-width:1020px){
  .main-nav{gap:16px}
  .logo-link img{width:min(380px,100%)}
  .hero-grid{grid-template-columns:1fr 1fr;gap:35px}
  .expertise-grid{grid-template-columns:repeat(3,1fr)}
  .services-layout,.software-grid,.about-grid,.contact-grid{gap:42px}
}
@media(max-width:780px){
  .container{width:min(100% - 28px,1180px)}
  .nav-wrap{min-height:76px;align-items:center}
  .logo-link img{width:min(320px,100%);max-width:calc(100vw - 100px)}
  .menu-toggle{display:block}
  .main-nav{display:none;position:absolute;top:76px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:18px 22px 24px;flex-direction:column;align-items:stretch;gap:5px;box-shadow:0 16px 30px rgba(8,47,92,.1)}
  .main-nav.open{display:flex}
  .main-nav a{padding:10px}
  .nav-contact{text-align:center;margin-top:5px}
  .hero-grid{grid-template-columns:1fr;min-height:auto;padding-top:60px;padding-bottom:65px}
  .hero h1{letter-spacing:-1.5px}
  .hero-media{margin-top:10px}
  .hero-badge{left:14px;bottom:14px}
  .expertises,.services,.software,.about,.contact{padding:72px 0}
  .expertise-grid{grid-template-columns:1fr 1fr}
  .services-layout,.software-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .services-intro{position:static}
  .projects-grid{align-items:flex-start;flex-direction:column}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}

@media(max-width:640px){
  .site-header{overflow-x:hidden}
  .container{width:min(100% - 22px,1180px)}
  .nav-wrap{gap:10px}
  .logo-link img{width:min(320px,100%);max-width:calc(100vw - 88px)}
}
@media(max-width:520px){
  .hero h1{font-size:39px}
  .hero-lead{font-size:16px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-proof{flex-direction:column;gap:7px}
  .expertise-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr;gap:0}
  .contact-form{padding:22px}
  .service-list article{padding:22px 18px;grid-template-columns:45px 1fr}
  .app-body{height:300px}
  .calc-card{width:170px}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .footer-bottom{flex-direction:column;gap:4px}
}