.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.item{aspect-ratio:4/3;background:#f3f4f6;border-radius:12px;display:flex;align-items:center;justify-content:center}
@media(max-width:900px){.gallery{grid-template-columns:repeat(2,1fr)}}
.upload{display:flex;align-items:center;justify-content:center;gap:12px;border:2px dashed #e5e7eb;border-radius:14px;padding:26px}