:root{--primary:#1d4ed8;--dark:#0f172a;--text:#475569;--bg:#f8fafc}
*{box-sizing:border-box}
body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}
header{background:#fff;border-bottom:1px solid #e5e7eb}
.wrap{max-width:1100px;margin:auto;padding:18px 24px}
nav{display:flex;justify-content:space-between;align-items:center}
nav a{text-decoration:none;color:#334155;margin-left:18px}
.hero{background:linear-gradient(135deg,#0f172a,#1d4ed8);color:#fff;padding:70px 24px}
.hero h1{font-size:46px;margin:0}
.hero p{font-size:18px;max-width:720px}
.btn{display:inline-block;margin-top:18px;background:#fff;color:#1d4ed8;padding:12px 22px;border-radius:8px;text-decoration:none;font-weight:bold}
.section{max-width:1100px;margin:40px auto;padding:0 24px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.card{background:#fff;padding:24px;border-radius:12px;box-shadow:0 3px 12px rgba(0,0,0,.08)}
.content{max-width:900px;margin:40px auto;background:#fff;padding:30px;border-radius:12px;box-shadow:0 3px 12px rgba(0,0,0,.08)}
footer{margin-top:40px;background:#0f172a;color:#cbd5e1;text-align:center;padding:25px}