:root{--bg:#f7f8fb;--text:#1e2430;--muted:#667085;--line:#e6e8ee;--primary:#163a70;--primary2:#0d5bd7;--white:#fff}
*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{text-decoration:none;color:inherit}img{max-width:100%}
.container{width:min(1120px,92%);margin:0 auto}.narrow{width:min(780px,92%)}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0}.logo{font-size:24px;font-weight:700;color:var(--primary)}
.nav{display:flex;gap:22px}.nav a{color:var(--text);font-weight:600}
.hero{padding:80px 0;background:linear-gradient(180deg,#eef4ff 0%,#f7f8fb 100%)}.hero h1{font-size:50px;line-height:1.1;margin:0 0 12px}.hero p{font-size:20px;color:var(--muted);max-width:700px;margin:0 0 24px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-block;padding:13px 20px;border-radius:10px;font-weight:700}.btn-primary{background:var(--primary2);color:#fff}.btn-secondary{background:#fff;border:1px solid var(--line)}
.section{padding:72px 0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.04)}
.contact-form{display:grid;gap:14px;margin-top:20px}.contact-form input,.contact-form textarea{width:100%;padding:14px 16px;border:1px solid #d0d5dd;border-radius:12px;background:#fff;font:inherit}
.site-footer{border-top:1px solid var(--line);background:#fff;padding:24px 0;margin-top:30px}
@media (max-width:900px){.grid{grid-template-columns:1fr 1fr}.hero h1{font-size:40px}}
@media (max-width:640px){.header-row{flex-direction:column;gap:12px}.nav{flex-wrap:wrap;justify-content:center}.grid{grid-template-columns:1fr}.hero{padding:56px 0}.hero h1{font-size:34px}.hero p{font-size:18px}}