.catalog-page-fluid{width:100%;max-width:1920px;margin:0 auto;padding:2rem 4%;animation:.8s ease-out fadeIn}.catalog-layout-wrapper{align-items:flex-start;gap:2rem;margin-top:1rem;display:flex}.catalog-theme-sidebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);flex-shrink:0;width:250px;padding:1.5rem;position:sticky;top:2rem}.sidebar-title{color:var(--text-primary);border-bottom:1px solid var(--border);margin-bottom:1rem;padding-bottom:.5rem;font-size:1.1rem}.theme-list{flex-direction:column;gap:.5rem;margin:0;padding:0;list-style:none;display:flex}.theme-item{border-radius:var(--radius-sm);cursor:pointer;color:var(--text-secondary);transition:all var(--transition-fast);padding:.5rem .8rem;font-size:.95rem}.theme-item:hover{background:var(--surface-hover);color:var(--primary)}.theme-item.active{background:var(--primary);color:#fff;font-weight:500}.top-category-nav{gap:1rem;margin-bottom:1rem;padding-bottom:.5rem;display:flex;overflow-x:auto}.category-tab{background:var(--surface);border:1px solid var(--border);white-space:nowrap;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-normal);border-radius:20px;padding:.6rem 1.2rem;font-size:.9rem}.category-tab:hover{border-color:var(--primary);color:var(--primary)}.category-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.catalog-main-area{flex-grow:1;min-width:0}@media (max-width:900px){.catalog-layout-wrapper{flex-direction:column}.catalog-theme-sidebar{display:none}}