:root{
--primary:#2563EB;--secondary:#4F46E5;--accent:#10B981;--bg:#f8fafc;--text:#1f2937;
}
*{box-sizing:border-box} body{margin:0;font-family:Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
nav{background:white;padding:16px 24px;display:flex;justify-content:space-between;box-shadow:0 2px 10px rgba(0,0,0,.08)}
nav a{text-decoration:none;color:var(--text);margin-left:16px}
.hero{padding:80px 20px;text-align:center;background:linear-gradient(135deg,var(--primary),var(--secondary));color:white}
.container{max-width:1100px;margin:auto;padding:40px 20px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.card{background:white;padding:24px;border-radius:16px;box-shadow:0 2px 10px rgba(0,0,0,.08)}
footer{background:#111827;color:white;padding:30px;text-align:center}
h1,h2{margin-top:0}
.btn{display:inline-block;background:white;color:var(--primary);padding:12px 20px;border-radius:10px;text-decoration:none;font-weight:bold}
.content{max-width:900px;margin:auto;padding:40px 20px}
s