.catalog-hero{padding:32px 0 0}
.catalog-hero__title{font-size:2rem;font-weight:800;color:var(--dark)}
.catalog-hero__desc{font-size:.9rem;color:var(--text-light);margin-top:4px;max-width:600px}

.catalog-section{padding:24px 0 48px}
.catalog-layout{display:grid;grid-template-columns:260px 1fr;gap:32px;align-items:flex-start}

/* Sidebar */
.catalog-sidebar{position:sticky;top:140px;background:var(--white);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow)}
.catalog-sidebar__close{display:none;position:absolute;top:12px;right:16px;font-size:1.8rem;color:var(--text-muted)}
.sidebar-block{margin-bottom:24px}
.sidebar-block:last-child{margin-bottom:0}
.sidebar-block__title{font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--dark);margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--primary)}
.sidebar-list li{margin-bottom:2px}
.sidebar-list__link{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;font-size:.85rem;color:var(--text);border-radius:var(--radius-sm);transition:var(--transition)}
.sidebar-list__link:hover{background:var(--bg);color:var(--primary)}
.sidebar-list__link.active{background:rgba(58,125,68,.1);color:var(--primary);font-weight:600}
.sidebar-list__count{font-size:.75rem;color:var(--text-muted);background:var(--bg);padding:2px 8px;border-radius:10px}
.sidebar-check{display:flex;align-items:center;gap:8px;padding:6px 12px;cursor:pointer;font-size:.85rem;min-width:0}
.sidebar-check input{display:none}
.sidebar-check__mark{width:18px;height:18px;border:2px solid var(--border);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:var(--transition)}
.sidebar-check input:checked+.sidebar-check__mark{background:var(--primary);border-color:var(--primary)}
.sidebar-check input:checked+.sidebar-check__mark::after{content:'✓';color:var(--white);font-size:.7rem;font-weight:700}
.sidebar-check__text{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Toolbar */
.catalog-toolbar{display:flex;align-items:center;justify-content:space-between;padding:0 0 16px;border-bottom:1px solid var(--border-light);margin-bottom:24px}
.catalog-toolbar__filter-btn{display:none;align-items:center;gap:6px;padding:8px 16px;font-size:.85rem;font-weight:600;border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition)}
.catalog-toolbar__filter-btn:hover{border-color:var(--primary);color:var(--primary)}
.catalog-toolbar__count{font-size:.85rem;color:var(--text-light)}

/* Products Grid */
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.product-card{display:flex;flex-direction:column;background:var(--white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.product-card__img{height:200px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.product-card__img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.product-card:hover .product-card__img img{transform:scale(1.05)}
.product-card__placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.product-card__placeholder img{width:100%;height:100%;object-fit:contain;padding:16px}
.product-card__body{padding:16px;flex:1}
.product-card__article{font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}
.product-card__title{font-size:.95rem;font-weight:600;margin-top:4px;color:var(--dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-card__desc{font-size:.82rem;color:var(--text-light);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-card__brands{display:flex;flex-wrap:wrap;gap:4px;margin-top:8px}
.product-card__brand{font-size:.7rem;padding:2px 8px;background:rgba(58,125,68,.1);color:var(--primary);border-radius:10px}
.product-card__footer{padding:12px 16px;border-top:1px solid var(--border-light)}
.product-card__link-text{font-size:.82rem;font-weight:600;color:var(--primary)}

/* Empty */
.catalog-empty{text-align:center;padding:64px 20px;color:var(--text-muted)}
.catalog-empty svg{margin-bottom:16px;opacity:.4}
.catalog-empty h3{font-size:1.2rem;color:var(--dark);margin-bottom:8px}
.catalog-empty p{font-size:.9rem;margin-bottom:24px}

/* Responsive */
@media(max-width:1199px){
    .products-grid{grid-template-columns:repeat(2,1fr)}
}
.catalog-sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:1099}
.catalog-sidebar-overlay.show{display:block}
@media(max-width:919px){
    .catalog-layout{grid-template-columns:1fr}
    .catalog-sidebar{position:fixed;top:0;left:0;width:300px;height:100vh;z-index:1100;transform:translateX(-100%);transition:transform .3s ease;border-radius:0;overflow-y:auto;padding-top:60px}
    .catalog-sidebar.open{transform:translateX(0)}
    .catalog-sidebar__close{display:block}
    .catalog-toolbar__filter-btn{display:flex}
}
@media(max-width:519px){
    .catalog-hero__title{font-size:1.5rem}
    .products-grid{grid-template-columns:1fr 1fr;gap:12px}
    .product-card__img{height:150px}
    .product-card__body{padding:10px}
    .product-card__title{font-size:.85rem}
    .product-card__footer{padding:8px 10px}
    .catalog-sidebar{width:100%}
}
@media(max-width:299px){
    .products-grid{grid-template-columns:1fr;gap:12px}
    .product-card__img{height:140px}
    .catalog-hero__title{font-size:1.2rem}
}