.product-detail-layout{grid-template-columns:1fr 1fr;gap:4rem;display:grid}.image-placeholder{aspect-ratio:4/5;background-color:var(--accent);border-radius:var(--radius);width:100%}.thumbnail-grid{grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:1rem;display:grid}.thumbnail{aspect-ratio:1;background-color:var(--accent);cursor:pointer;border-radius:4px}.thumbnail.active{border:2px solid var(--primary)}.brand-name{letter-spacing:2px;color:var(--muted);text-transform:uppercase;font-size:.8rem;font-weight:600}.product-title{margin:.5rem 0 1rem;font-size:2.5rem}.product-price{margin-bottom:2rem;font-size:1.5rem;font-weight:700}.product-description{color:var(--muted);margin-bottom:2.5rem;line-height:1.8}.option-group{margin-bottom:2rem}.option-group label{margin-bottom:1rem;font-size:.9rem;display:block}.color-options,.size-options{gap:.75rem;display:flex}.color-btn{border:2px solid #0000;border-radius:50%;width:32px;height:32px}.color-btn.active{border-color:var(--primary);transform:scale(1.1)}.size-btn{border:1px solid var(--border);width:48px;height:48px;font-weight:600;transition:all .2s}.size-btn.active{background-color:var(--primary);color:#fff;border-color:var(--primary)}.product-actions{gap:1rem;margin-bottom:3rem;display:flex}.add-to-cart{flex:1}.wish-btn{width:60px;font-size:1.5rem}.product-meta{border-top:1px solid var(--border);color:var(--muted);flex-direction:column;gap:.5rem;padding-top:2rem;font-size:.9rem;display:flex}@media (max-width:768px){.product-detail-layout{grid-template-columns:1fr}}