@media(max-width:850px){
 #catalog .catbody{grid-template-columns:minmax(0,1fr)}
 #catalog .brands{display:flex!important;flex-direction:column!important;width:100%;max-height:none!important;overflow:visible!important;gap:7px;border-right:0;padding:14px}
 #catalog .brands button{min-width:0!important;width:100%;text-align:left;padding:13px 14px;border:1px solid #3a4a5e;border-radius:7px;font-size:15px;color:#e7f0fc!important}
 #catalog .brands button.active{background:#12466b!important;border-color:#71ceff!important;color:#fff!important}
 #catalog .brands button.active::after{content:'✓';float:right;color:#91ddff}
 .mobileCatalogStage,[data-mobile-step],#filteredProductGrid{scroll-margin-top:18px}
 .mobileCatalogStage h4{font-size:19px;color:#fff;margin:18px 0}
 .mobileChoices{display:flex;flex-direction:column;gap:8px;min-width:0}
 .mobileChoice{display:flex;width:100%;justify-content:space-between;align-items:center;gap:12px;min-height:46px;border:1px solid #445b73;border-radius:8px;padding:12px;background:#1b2b3f;color:#e7f0fc;font:600 14px Manrope;text-align:left;cursor:pointer}
 .mobileChoice.isSelected,.sideFilter .mobileChoice.isSelected{background:#12466b!important;color:#fff!important;border:2px solid #80d6ff!important}
 .mobileChoice:hover,.mobileChoice:focus-visible{background:#163c58;color:#fff;outline:2px solid #80d6ff;outline-offset:1px}
 [data-mobile-filters]{min-width:0;padding-bottom:18px}
 .mobileFilterStep{margin:10px 0;border:1px solid #40566e;border-radius:9px;overflow:hidden;background:#172536}
 .mobileFilterStep summary{list-style:none;display:flex;align-items:center;gap:10px;padding:14px;cursor:pointer;color:#d7e9fa;font-size:13px}
 .mobileFilterStep summary::-webkit-details-marker{display:none}
 .mobileFilterStep summary strong{display:block;margin-top:5px;color:#fff;font-size:15px;overflow-wrap:anywhere}
 .mobileStepNumber{display:grid;place-items:center;flex-shrink:0;width:28px;height:28px;border-radius:50%;background:#284763;color:#dff3ff}
 .mobileStepMark{margin-left:auto;color:#91ddff;font-size:20px}
 .mobileFilterStep[open]{border-color:#71ceff}.mobileFilterStep[open] summary{background:#173b57}
 .mobileFilterStep>.mobileChoices{padding:0 12px 12px}
 .mobileSelection{padding:12px;border-radius:7px;background:#12334c;color:#dff3ff;font-size:13px;line-height:1.7;overflow-wrap:anywhere}
 .mobileShowProducts,.mobileFilterReset{display:block;width:100%;min-height:44px;margin-top:10px;border:1px solid #4d6e8e;border-radius:7px;padding:11px;font:700 14px Manrope;color:#e7f0fc;background:#22384f;cursor:pointer}
 .mobileShowProducts{background:#0072B8;color:#fff;border-color:#4ab3e9}
 .mobileEmpty{color:#d6e5f4;line-height:1.6}
}