body{margin:0;font-family:system-ui;background:#0c0c0e;color:#fff}
header{background:#111;padding:20px;color:#d4af37;font-weight:800}
.container{max-width:1100px;margin:auto;padding:20px}
.card{background:#16161a;border-radius:16px;padding:20px;margin-bottom:20px}
input,button{width:100%;padding:12px;margin-top:10px;border-radius:10px;border:none}
button{background:#d4af37;color:#111;font-weight:800}
a{color:#d4af37;text-decoration:none}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}