body{margin:0;background:#090909;color:#fff;font-family:Inter,Arial}
.sidebar{position:fixed;width:240px;height:100vh;background:#111;padding:20px}
.sidebar a{display:block;color:#ddd;text-decoration:none;padding:10px 0}
main{margin-left:260px;padding:24px}
.hero,.card{background:#151515;border:1px solid #2a2a2a;border-radius:18px;padding:20px;margin-bottom:20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}
.card input{width:100%;padding:10px;background:#0e0e0e;color:#fff;border:1px solid #333}