*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#1b2430;background:#fff;line-height:1.6}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.top{border-bottom:1px solid #e8ecf1;background:#fff}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{font-size:22px;font-weight:700;color:#1b2430;text-decoration:none;letter-spacing:.3px}
.brand span{color:#2f6fed}
nav a{margin-left:26px;color:#4a5768;text-decoration:none;font-size:15px}
nav a:hover{color:#2f6fed}
.hero{background:linear-gradient(135deg,#f4f7fc 0%,#eaf1fb 100%);padding:96px 0}
.hero h1{font-size:42px;line-height:1.2;margin-bottom:20px}
.hero p{max-width:620px;color:#4a5768;font-size:18px;margin-bottom:32px}
.btn{display:inline-block;background:#2f6fed;color:#fff;padding:13px 28px;border-radius:8px;text-decoration:none;font-weight:600}
.btn:hover{background:#2559c9}
.grid{padding:72px 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.card{border:1px solid #e8ecf1;border-radius:12px;padding:28px;background:#fff}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:#5b6879;font-size:15px}
.about{background:#f7f9fc;padding:64px 0}
.about h2,.contacts h2{font-size:28px;margin-bottom:16px}
.about p{max-width:760px;color:#4a5768}
.contacts{padding:64px 0}
.contacts a{color:#2f6fed}
footer{border-top:1px solid #e8ecf1;padding:26px 0;color:#7a8798;font-size:14px}
@media(max-width:640px){nav{display:none}.hero h1{font-size:30px}.hero{padding:64px 0}}