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@media (max-width:768px){.topbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}.logo{min-width:0;width:auto;justify-content:flex-start}.mobile-menu-btn{display:inline-flex;align-items:center;justify-content:center;width:max-content;margin:0;order:2}.nav-overlay{position:fixed;inset:0;background:rgba(0,0,0,.36);z-index:15}.nav-actions{display:none;position:fixed;top:0;left:0;right:auto;bottom:0;width:min(84vw,320px);background:#fff;z-index:16;padding:18px;box-shadow:8px 0 30px rgba(0,0,0,.18);overflow-y:auto;flex-direction:column;align-items:stretch}.nav-actions.open{display:flex}.nav-overlay.show{display:block;pointer-events:auto}.nav-actions-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.mobile-menu-close{border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer}.header-btn{text-align:left}.search-row{grid-template-columns:1fr;order:3}.product-item{grid-template-columns:1fr;align-items:start}.product-thumb,.thumb-slider{width:100%}.thumb-slider{height:220px}.product-title{font-size:20px}.container{padding:16px 12px 24px}.order-actions,.register-actions{flex-direction:column}.action-row{width:100%}.order-btn,.video-btn{flex:1}.home-section-grid{grid-template-columns:1fr}}