html,body{margin:0;height:100%;font-family:Arial;background:#08111f;color:#fff}#bg{position:fixed;inset:0;z-index:-1}.hero{text-align:center;padding:40px}.logo{max-width:420px;width:90%;filter:drop-shadow(0 0 25px #2cf)}.btn{display:inline-block;margin:10px;padding:14px 28px;border-radius:30px;color:#fff;text-decoration:none;font-weight:bold}.w{background:#25d366}.s{background:#178bff}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;padding:30px;max-width:1000px;margin:auto}.card{background:rgba(255,255,255,.08);padding:30px;border-radius:16px;backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.12)}