.smart-size-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}.smart-btn{background:#f4f4f4;padding:10px 15px;border:1px solid #ccc;cursor:pointer;border-radius:6px;transition:all 0.3s ease}.smart-btn.active{background:#77b800;color:#fff;border-color:#77b800}