.site-header{
  display:flex;justify-content:space-between;align-items:center;padding:18px 6vw;background:#080808;border-bottom:2px solid #f05a16
}
.site-header img{height:52px;background:#fff;border-radius:10px;padding:5px}
.site-header nav{display:flex;gap:18px}
.site-header a{color:#fff;text-decoration:none;font-weight:900}
.product-detail-page{background:#f5f5f5;min-height:100vh;padding:46px 6vw}
.product-detail-hero{display:grid;grid-template-columns:minmax(280px,520px) 1fr;gap:34px;align-items:center;max-width:1180px;margin:0 auto;background:#fff;border-radius:22px;padding:30px;box-shadow:0 18px 50px rgba(0,0,0,.08)}
.product-detail-image{background:#fafafa;border:1px solid #e5e5e5;border-radius:18px;padding:20px;display:grid;place-items:center}
.product-detail-image img{max-width:100%;max-height:520px;object-fit:contain}
.product-detail-copy span{color:#f05a16;font-weight:900;text-transform:uppercase;letter-spacing:.12em}
.product-detail-copy h1{font-size:clamp(34px,5vw,64px);line-height:1;margin:12px 0}
.product-detail-copy p{font-size:19px;line-height:1.6;color:#444}
.product-detail-copy ul{padding-left:20px;line-height:2;font-size:17px}
.product-add-to-cart{display:inline-flex;margin-top:20px;background:#f05a16;color:#fff!important;text-decoration:none;border-radius:14px;padding:16px 24px;font-weight:900}
.product-add-to-cart:hover{background:#c7440d}
@media(max-width:850px){.product-detail-hero{grid-template-columns:1fr}.site-header{align-items:flex-start;gap:14px;flex-direction:column}}