:root{
  --blue:#209fd0; --blue-dark:#0b76b6; --ink:#07162d; --muted:#5e6b7b; --line:#dfe7ef; --bg:#f6f9fc;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:white} a{color:inherit;text-decoration:none}
.site-header{height:94px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(22px,5vw,86px);background:#fff;box-shadow:0 8px 25px rgba(7,22,45,.07);position:sticky;top:0;z-index:10}.brand img{width:min(335px,58vw);display:block}.nav{display:flex;align-items:center;gap:34px;font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.03em}.nav a:not(.button){padding:36px 0;border-bottom:3px solid transparent}.nav a:hover{color:var(--blue);border-color:var(--blue)}.menu-toggle{display:none;background:none;border:0;font-size:30px;color:var(--ink)}
.button{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;padding:15px 25px;border-radius:3px;font-weight:800;text-transform:uppercase;letter-spacing:.04em;box-shadow:0 12px 28px rgba(32,159,208,.26)}.button.small{padding:14px 23px;color:#fff!important}.link-button{color:#35b7ed;font-weight:800;text-transform:uppercase;letter-spacing:.04em}
.hero{min-height:690px;position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center;padding:68px 22px 0;color:#fff;background:radial-gradient(circle at 50% 65%,#1d4664 0%,#0b2439 46%,#071526 100%)}.hero-bg{position:absolute;inset:0;background:linear-gradient(90deg,rgba(32,159,208,.24) 1px,transparent 1px),linear-gradient(0deg,rgba(32,159,208,.13) 1px,transparent 1px);background-size:95px 95px;opacity:.12}.hero:before,.hero:after{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(32,159,208,.35);border-radius:38% 62% 58% 42%;filter:blur(.2px);opacity:.35}.hero:before{left:-80px;top:130px}.hero:after{right:-90px;top:120px}.hero-content{position:relative;z-index:2;max-width:1000px}.eyebrow{margin:0 0 12px;color:var(--blue);font-weight:900;letter-spacing:.16em;text-transform:uppercase;font-size:13px}.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.03;margin:0;text-shadow:0 4px 18px rgba(0,0,0,.28)}.lede{font-size:clamp(18px,2.2vw,25px);line-height:1.5;max-width:880px;margin:24px auto 0;color:#e7f3fb}.hero-actions{margin-top:34px;display:flex;gap:28px;justify-content:center;align-items:center;flex-wrap:wrap}.battery-hero{position:relative;z-index:2;width:min(1000px,92vw);margin:26px auto 0;display:block;object-fit:contain;object-position:center center;filter:drop-shadow(0 22px 28px rgba(0,0,0,.34));}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;max-width:1280px;margin:0 auto;padding:38px 28px;background:#fff}.quick-grid article{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:0 28px;border-right:1px solid var(--line)}.quick-grid article:last-child{border-right:0}.quick-grid span{font-size:38px;color:var(--blue)}.quick-grid h3{margin:0 0 10px;text-transform:uppercase;font-size:15px;letter-spacing:.04em}.quick-grid p{margin:0;color:#28384a;line-height:1.5}
.section{padding:88px clamp(22px,6vw,96px);background:var(--bg)}.section:nth-of-type(even){background:#fff}.section-heading{max-width:830px;margin:0 auto 42px;text-align:center}.section-heading h2,.split h2,.contact h2{font-size:clamp(32px,4vw,52px);line-height:1.08;margin:0 0 18px}.section-heading p,.split p,.contact p{font-size:18px;color:var(--muted);line-height:1.65}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;max-width:1240px;margin:0 auto}.card{background:#fff;border:1px solid var(--line);padding:30px;border-radius:16px;box-shadow:0 22px 55px rgba(7,22,45,.07)}.card h3{font-size:22px;margin:0 0 12px}.card p{color:var(--muted);line-height:1.6}.split{padding:90px clamp(22px,8vw,130px);display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.checklist{margin:0;padding:0;list-style:none;display:grid;gap:16px}.checklist li{padding:19px 22px 19px 54px;background:#fff;border:1px solid var(--line);border-radius:12px;position:relative;font-weight:700}.checklist li:before{content:"✓";position:absolute;left:22px;color:var(--blue);font-weight:900}.dark{background:linear-gradient(135deg,#07162d,#12395a);color:#fff}.dark .section-heading p{color:#d6e8f5}.compact{margin-bottom:28px}.industry-grid{max-width:1120px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.industry-grid article{background:#fff;border:1px solid var(--line);padding:24px;border-radius:12px;text-align:center;font-weight:900;color:#0d2741}.contact{margin:60px clamp(22px,6vw,96px);padding:52px clamp(24px,5vw,72px);display:flex;justify-content:space-between;align-items:center;gap:30px;background:linear-gradient(135deg,#eef8fd,#fff);border:1px solid var(--line);border-radius:22px}.contact div{max-width:720px}footer{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:30px clamp(22px,5vw,86px);border-top:1px solid var(--line);color:var(--muted)}footer img{width:220px}

.service-cards{grid-template-columns:repeat(5,1fr)}
@media(max-width:1180px){.service-cards{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.service-cards{grid-template-columns:1fr}}
@media(max-width:980px){.menu-toggle{display:block}.nav{display:none;position:absolute;top:94px;left:0;right:0;background:#fff;padding:20px;flex-direction:column;gap:10px;box-shadow:0 20px 35px rgba(7,22,45,.1)}.nav.open{display:flex}.nav a:not(.button){padding:12px}.quick-grid,.cards{grid-template-columns:1fr 1fr}.quick-grid article:nth-child(2){border-right:0}.split,.contact{grid-template-columns:1fr;display:grid}.industry-grid{grid-template-columns:1fr 1fr}.hero{min-height:650px}.battery-hero{margin-top:18px}}
@media(max-width:640px){.site-header{height:78px}.brand img{width:230px}.nav{top:78px}.hero{padding-top:48px;min-height:auto}.quick-grid,.cards,.industry-grid{grid-template-columns:1fr}.quick-grid article{border-right:0;border-bottom:1px solid var(--line);padding:22px 0}.quick-grid article:last-child{border-bottom:0}.contact,footer{display:block;text-align:center}footer img{margin-bottom:16px}.hero-actions{gap:18px}.battery-hero{width:110vw}}