.filter-sidebar{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:20px;box-shadow:0 2px 8px #0000000a}.filter-header{border-bottom:1px solid #e5e7eb;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:14px;display:flex}.filter-header h3{color:#000;margin:0;font-size:18px;font-weight:700}.reset-btn{color:#6b7280;cursor:pointer;background:0 0;border:none;border-radius:6px;padding:6px 10px;font-size:13px;font-weight:600;transition:all .2s}.reset-btn:hover{color:#fff;background:#000}.filter-section{border-top:1px solid #f1f5f9;margin-top:16px;padding-top:16px}.filter-section:first-of-type{border-top:none;margin-top:0;padding-top:0}.filter-section h4{color:#000;margin-bottom:12px;font-size:14px;font-weight:600}.quick-price-grid{grid-template-columns:1fr;gap:8px;display:grid}.quick-filter-btn{cursor:pointer;color:#374151;background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:10px 12px;font-size:13px;font-weight:500;transition:all .2s}.quick-filter-btn:hover,.quick-filter-btn.active{color:#fff;background:#000;border-color:#000}.price-inputs{align-items:center;gap:10px;margin-bottom:12px;display:flex}.price-inputs input{border:1px solid #e5e7eb;border-radius:8px;flex:1;padding:10px 12px;font-size:13px;transition:all .2s}.price-inputs input:focus{border-color:#000;outline:none;box-shadow:0 0 0 2px #0000001a}.price-inputs span{color:#9ca3af;font-weight:500}.price-slider{accent-color:#000;width:100%;height:6px;margin:10px 0}.price-display{color:#374151;text-align:center;background:#f8fafc;border-radius:6px;padding:8px;font-size:13px;font-weight:500}.filter-search{border:1px solid #e5e7eb;border-radius:8px;width:100%;margin-bottom:12px;padding:10px 12px;font-size:13px;transition:all .2s}.filter-search:focus{border-color:#000;outline:none;box-shadow:0 0 0 2px #0000001a}.selected-brands{flex-wrap:wrap;gap:6px;margin-bottom:12px;display:flex}.brand-chip{color:#fff;cursor:pointer;background:#000;border-radius:20px;padding:6px 12px;font-size:12px;font-weight:500;transition:all .2s}.brand-chip:hover{background:#333}.brand-list{flex-direction:column;gap:6px;max-height:220px;display:flex;overflow-y:auto}.brand-checkbox{cursor:pointer;border-radius:6px;align-items:center;gap:10px;padding:8px 10px;font-size:13px;transition:all .2s;display:flex}.brand-checkbox:hover{background:#f8fafc}.brand-checkbox input{accent-color:#000;width:16px;height:16px}.no-brand{color:#6b7280;text-align:center;padding:16px 10px;font-size:13px}.brand-count{color:#6b7280;margin-left:auto;font-size:12px}.brand-list::-webkit-scrollbar{width:4px}.brand-list::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:4px}.brand-list::-webkit-scrollbar-thumb:hover{background:#9ca3af}@media (max-width:900px){.filter-sidebar{border-radius:10px;padding:16px}.filter-header{margin-bottom:16px;padding-bottom:12px}.filter-header h3{font-size:17px}.filter-section{margin-top:14px;padding-top:14px}.filter-section h4{margin-bottom:10px;font-size:13px}}@media (max-width:768px){.filter-sidebar{padding:14px}.filter-header h3{font-size:16px}.quick-filter-btn,.price-inputs input,.filter-search{padding:8px 10px;font-size:12px}.brand-checkbox{padding:6px 8px;font-size:12px}}@media (max-width:640px){.filter-sidebar{margin-bottom:16px;display:block}.filter-header h3{font-size:15px}.filter-section h4{font-size:12px}.quick-price-grid{grid-template-columns:repeat(2,1fr)}.brand-list{max-height:160px}}