*{ box-sizing:border-box; }
body{ margin:0; font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial; background:#fafafa; color:#111; }
a{ color:inherit; text-decoration:none; }
.container{ max-width:1100px; margin:0 auto; padding:14px; }
.topbar{
  position:sticky; top:0; z-index:10;
  display:flex; gap:12px; align-items:center; justify-content:space-between;
  padding:12px 14px; background:#fff; border-bottom:1px solid #eee;
}
.logo{ font-weight:800; }
.nav{ padding:8px 10px; border-radius:10px; background:#f5f5f5; }
.pageTitle{ margin:10px 0 12px; font-size:18px; }

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(160px, 1fr));
  gap:12px;
}
.card{
  background:#fff; border:1px solid #eee; border-radius:12px; padding:10px;
}
.card img{ width:100%; height:170px; object-fit:cover; border-radius:10px; }
.btn{
  width:100%; padding:10px; border:0; border-radius:10px;
  cursor:pointer; background:#111; color:#fff;
}
.btn:disabled{ opacity:.6; cursor:not-allowed; }
.muted{ color:#666; font-size:13px; }