:root{
  --bg:#f7f8fb;
  --card:#fff;
  --muted:#666;
  --accent:#2563eb;
  --danger:#ef4444;
}
*{box-sizing:border-box}
body{font-family:Inter,system-ui,Segoe UI,Roboto,Arial; margin:0; background:var(--bg); color:#111}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:#111;color:#fff}
.topbar h1{margin:0;font-size:18px}
.topbar nav a{color:#fff;margin-left:12px;text-decoration:none;font-size:14px;opacity:.95}
.container{max-width:980px;margin:28px auto;padding:0 16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.card{background:var(--card);border-radius:12px;box-shadow:0 6px 18px rgba(16,24,40,0.06);overflow:hidden;display:flex;flex-direction:column}
.thumb{height:180px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#eee}
.thumb img{max-width:100%;max-height:100%;object-fit:contain}
.card-body{padding:14px}
.card-title{margin:0 0 8px 0;font-size:18px}
.card-desc{margin:0 0 8px 0;color:var(--muted)}
.card-meta{margin:0;font-size:13px;color:var(--muted)}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:8px 12px;border-radius:8px;text-decoration:none;border:0;cursor:pointer}
.btn.danger{background:var(--danger)}
.form label{display:block;margin-bottom:10px}
.form input,.form textarea{width:100%;padding:8px;border-radius:8px;border:1px solid #ddd}
.status{margin-top:16px;color:var(--muted)}