body{margin:0;background:#0b0f14;color:#e9eef5;font-family:Arial}
a{text-decoration:none;color:inherit}
.header{padding:20px}
.container{padding:20px;max-width:1100px;margin:auto}
.card{background:#111823;border-radius:12px;padding:12px;margin-bottom:12px}
.btn{padding:10px 14px;border:1px solid #4aa3ff;border-radius:10px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}