.oa-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;padding-bottom:15px;}
.oa-card{border:1px solid #ddd;border-radius:12px;overflow:hidden;background:#fff}
.oa-card img{width:100%;height:160px;object-fit:cover;display:block}
.oa-card figcaption{padding:12px}
.oa-btn{display:inline-block;margin:.25rem 0;padding:.5rem .75rem;border-radius:8px;border:1px solid #222;text-decoration:none}
.oa-btn:hover{background:#f5f5f5}