.breadcrumb{display:flex;align-items:center;gap:.5rem;padding:2rem 0;font-size:.875rem;color:#636e72}.product-detail{padding:2rem 0 4rem}.product-layout{display:grid;grid-template-columns:1fr 1fr;gap:4rem}.product-media{position:sticky;top:100px;height:fit-content}.media-main{aspect-ratio:1;background:#f7f7f7;border-radius:12px;overflow:hidden;margin-bottom:1rem}.media-main img{width:100%;height:100%;object-fit:cover}.media-thumbs{display:flex;gap:.5rem}.thumb{width:80px;height:80px;border:2px solid transparent;border-radius:8px;overflow:hidden;cursor:pointer;transition:border-color .2s}.thumb.active{border-color:#ff6b6b}.thumb img{width:100%;height:100%;object-fit:cover}.product-info{padding-top:1rem}.product-title{font-size:2rem;font-weight:700;margin-bottom:1rem;line-height:1.2}.product-price{font-size:1.5rem;font-weight:700;color:#ff6b6b;margin-bottom:1.5rem}.product-description{color:#636e72;line-height:1.8;margin-bottom:2rem;white-space:pre-line}.product-actions{display:flex;align-items:center;gap:1rem;margin-bottom:2rem}.quantity-selector{display:flex;align-items:center;border:1px solid #dfe6e9;border-radius:4px}.qty-btn{width:40px;height:40px;font-size:1.25rem;font-weight:600}.qty-btn:hover{background:#f7f7f7}#quantity{width:60px;height:40px;text-align:center;border:none;font-weight:600}.btn-add-cart{flex:1;padding:1rem 2rem;background:#2d3436;color:#fff;font-weight:600;border-radius:4px;transition:all .3s}.btn-add-cart:hover{background:#ff6b6b}.product-meta{font-size:.875rem;color:#636e72}.product-meta strong{color:#2d3436}.related-products{padding:4rem 0;background:#f7f7f7}.related-products .section-title{margin-bottom:2rem}.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}.product-card{background:#fff;border-radius:8px;overflow:hidden;transition:transform .3s}.product-card:hover{transform:translateY(-4px)}.card-image{aspect-ratio:1;background:#f7f7f7}.card-image img{width:100%;height:100%;object-fit:cover}.card-info{padding:1rem}.card-title{font-size:.875rem;font-weight:600;margin-bottom:.25rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-price{font-weight:700;color:#ff6b6b}@media(max-width:1024px){.product-layout{grid-template-columns:1fr;gap:2rem}.product-media{position:static}.related-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.product-actions{flex-direction:column}.btn-add-cart{width:100%}.related-grid{grid-template-columns:1fr}}