body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#0b1220;color:#e8eefc}.container{max-width:1100px;margin:auto;padding:20px}.card{background:#0f1a2e;padding:20px;border-radius:10px;margin-bottom:20px}.section{padding:40px 0}.grid3{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:20px;gap:20px}@media(max-width:900px){.grid3{grid-template-columns:1fr}}.button{background:#2bb673;padding:10px 16px;border-radius:8px;color:#fff;text-decoration:none}.nav{background:#111a2f;padding:10px 20px}.nav a{margin-right:15px;color:#fff;text-decoration:none}.footer{padding:30px 0;border-top:1px solid #333;margin-top:40px;color:#bbb;text-align:center}