.products-filter {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin: 2rem 0 2rem 0;
            flex-wrap: wrap;
            padding: 0 1rem;
        }
        .filter-btn {
            background: #0078d4;
            color: #fff;
            border: none;
            border-radius: 8px;
            padding: 0.7rem 2rem;
            font-size: 1.1rem;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.2s;
            white-space: nowrap;
        }
        .filter-btn.active,
        .filter-btn:hover {
            background: #c22d2d;
        }
        .products-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }
        .product-card.big {
            width: 320px;
            min-width: 320px;
            padding: 2rem 1rem;
        }
        .product-card.big img {
            width: 220px;
            height: 220px;
            object-fit: contain;
            margin-bottom: 1rem;
        }
        .product-card.big h3 {
            font-size: 1.5rem;
        }
        .product-card.big p {
            font-size: 1.1rem;
        }
        .product-card.big button {
            background: #0078d4;
            color: #fff;
            font-size: 1.2rem;
            padding: 1rem 2rem;
            border-radius: 12px;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s, transform 0.2s;
            border: none;
            box-shadow: 0 2px 8px rgba(0,0,0,0.10);
        }

        .product-card.big button:hover {
            background: #005fa3;
            transform: scale(1.05);
        }
        @media (max-width: 900px) {
            .products-grid {
                gap: 1rem;
            }
            .product-card.big {
                width: 90vw;
                min-width: 90vw;
                padding: 1rem 0.5rem;
            }
            .product-card.big img {
                width: 140px;
                height: 140px;
            }
        }
        
        
        @media (max-width: 500px) {
            .products-filter {
                flex-direction: column;
                align-items: center;
                gap: 0.5rem;
                margin: 1rem 0;
                padding: 0 0.5rem;
            }
            
            .filter-btn {
                width: 100%;
                max-width: 200px;
                padding: 0.6rem 1rem;
                font-size: 1rem;
            }
            
            .products-grid {
                gap: 1rem;
                padding: 0 0.5rem;
            }
            
            .product-card.big {
                width: 100%;
                min-width: auto;
                max-width: 300px;
                padding: 1rem;
            }
            
            .product-card.big img {
                width: 120px;
                height: 120px;
            }
            
            .product-card.big h3 {
                font-size: 1.2rem;
            }
            
            .product-card.big p {
                font-size: 0.9rem;
            }
            
            .product-card.big button {
                font-size: 1rem;
                padding: 0.8rem 1.5rem;
            }
        }