*{box-sizing:border-box}
:root{--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--red:#d71920;--bg:#fff}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg)}
a{color:inherit}
.trustbar{background:#0c0f14;color:#fff;text-align:center;padding:8px 12px;font-size:13px;font-weight:700}
.site-header{display:flex;align-items:center;justify-content:space-between;padding:15px 18px;border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.97);z-index:10}
.brand{font-size:28px;font-weight:900;letter-spacing:-1px;text-decoration:none}
.desktop-nav{display:none;gap:22px}
.desktop-nav a{font-size:14px;text-decoration:none;color:#374151}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{border:0;background:none;font-size:22px;padding:4px;cursor:pointer}
.cart{font-size:20px}
.product-page{max-width:1100px;margin:0 auto}
.gallery{padding:14px 14px 0}
.main-image-wrap{background:#f3f4f6;border-radius:12px;overflow:hidden}
.main-image-wrap img{display:block;width:100%;aspect-ratio:1/1;object-fit:cover}
.thumbs{display:flex;justify-content:center;gap:8px;padding:10px 0 0}
.thumb{width:54px;height:54px;padding:0;border:2px solid transparent;border-radius:8px;overflow:hidden;background:#fff;cursor:pointer}
.thumb.active{border-color:#111827}
.thumb img{width:100%;height:100%;object-fit:cover}
.purchase-card{padding:18px 18px 8px}
.eyebrow{margin:0 0 4px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:700}
h1{font-size:34px;margin:0 0 4px;line-height:1.05}
.subtitle{font-size:18px;color:#374151;margin:0 0 12px}
.price-row{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.price{font-size:27px;font-weight:800}
.shipping-note{font-size:13px;color:var(--muted)}
.option-group{margin:18px 0}
.option-label{font-size:14px;font-weight:700;margin-bottom:9px}
.option-label a{float:right;color:#374151;font-weight:500}
.swatches{display:flex;gap:10px}
.swatch{width:28px;height:28px;border-radius:50%;border:2px solid #d1d5db;cursor:pointer}
.swatch.active{outline:2px solid #111827;outline-offset:2px}
.swatch.navy{background:#162d4c}.swatch.black{background:#161616}.swatch.white{background:#fff}
.sizes{display:flex;gap:8px;flex-wrap:wrap}
.sizes button{min-width:48px;height:40px;border:1px solid #cbd5e1;background:#fff;border-radius:6px;font-weight:700;cursor:pointer}
.sizes button.active{border:2px solid #111827}
.qty{display:inline-flex;align-items:center;border:1px solid #cbd5e1;border-radius:6px;overflow:hidden}
.qty button{width:42px;height:40px;border:0;background:#fff;font-size:20px;cursor:pointer}
.qty span{min-width:42px;text-align:center;font-weight:700}
.buy-now{display:block;width:100%;text-align:center;padding:16px 18px;border-radius:7px;background:var(--red);color:#fff;text-decoration:none;font-size:19px;font-weight:900;letter-spacing:.03em;box-shadow:0 2px 0 rgba(0,0,0,.14)}
.secure{text-align:center;color:#4b5563;font-size:13px;margin:9px 0 16px}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid div{text-align:center;padding:14px 8px;font-size:12px}
.trust-grid strong{display:block;font-size:20px;margin-bottom:4px}
.trust-grid span{display:block}
.info{max-width:760px;margin:10px auto 0;padding:0 18px 26px}
details{border-bottom:1px solid var(--line)}
summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:800}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right}
details[open] summary::after{content:"−"}
details p{color:#4b5563;line-height:1.6;margin:0 0 16px}
footer{border-top:1px solid var(--line);padding:24px 18px 34px;text-align:center;color:#4b5563;font-size:13px}
.footer-brand{font-size:20px;font-weight:900;color:var(--ink);margin-bottom:10px}
.footer-links{display:flex;justify-content:center;gap:14px;flex-wrap:wrap;margin-bottom:12px}
.footer-links a{text-decoration:none}
.payments{margin:10px 0;font-weight:700;color:#374151}
@media(min-width:800px){
  .site-header{padding:16px 28px}
  .desktop-nav{display:flex}
  .menu-btn{display:none}
  .product-page{display:grid;grid-template-columns:1.15fr .85fr;gap:42px;padding:34px 28px 10px}
  .gallery{padding:0}
  .purchase-card{padding:8px 0 0;align-self:start}
  .main-image-wrap img{aspect-ratio:4/5}
  h1{font-size:42px}
  .buy-now,.secure{max-width:420px}
  .trust-grid{max-width:520px}
}