:root{--g:#173d2b;--g2:#245c40;--soft:#eff5f1;--line:#e1e8e3;--muted:#69766e}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial;background:#f6f8f6;color:#233128;line-height:1.55}
a{text-decoration:none;color:inherit}.container{width:min(1120px,calc(100% - 24px));margin:auto}
header{background:#fff;border-bottom:1px solid var(--line)}.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between}.brand{font-weight:900;color:var(--g)}.back{color:#5d6b62;font-weight:700;font-size:.9rem}
main{padding:48px 0}.product-page{display:grid;grid-template-columns:1fr 1fr;gap:38px;background:#fff;border:1px solid var(--line);border-radius:26px;padding:24px;box-shadow:0 18px 50px rgba(20,50,34,.07)}
.gallery-main{height:560px;display:grid;place-items:center;border:1px solid #edf1ee;border-radius:20px;overflow:hidden;background:white;cursor:zoom-in}
.gallery-main img{max-width:100%;max-height:100%;object-fit:contain}.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:9px}.thumb{border:1px solid var(--line);border-radius:11px;padding:4px;background:#fff;cursor:pointer}.thumb img{width:100%;height:78px;object-fit:contain}
.tag{display:inline-flex;padding:7px 10px;border-radius:999px;background:var(--soft);color:var(--g);font-size:.78rem;font-weight:850}
h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.05;color:var(--g);margin:14px 0}.desc{color:var(--muted)}
.price{font-size:2.65rem;font-weight:950;color:var(--g);margin:22px 0 4px}.chips{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 22px}.chip{border:1px solid var(--line);padding:7px 10px;border-radius:999px;font-size:.82rem;font-weight:800}
.features{padding-left:18px;color:#415048}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.btn{min-height:46px;padding:0 17px;border-radius:12px;border:0;font-weight:850;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.primary{background:var(--g);color:#fff}.outline{background:#fff;border:1px solid #cfd8d2;color:var(--g)}
.shipping-calculator{margin-top:18px;padding:17px;border:1px solid var(--line);border-radius:17px;background:#f8fbf9}.shipping-form{display:grid;grid-template-columns:1fr auto;gap:9px}.shipping-input{min-height:46px;border:1px solid #ccd7cf;border-radius:11px;padding:0 12px}.shipping-results{display:grid;gap:8px;margin-top:10px}.shipping-option{display:flex;justify-content:space-between;gap:12px;border:1px solid var(--line);background:#fff;border-radius:12px;padding:11px}.shipping-price{font-weight:900;color:var(--g)}.shipping-error{background:#fff3ef;color:#8b3e2d;border:1px solid #f0d4ca;padding:10px;border-radius:11px}.shipping-status{color:#6d7971;padding-top:8px;font-size:.88rem}
details{margin-top:18px;border:1px solid var(--line);border-radius:14px;padding:13px 15px}summary{cursor:pointer;font-weight:850;color:var(--g)}
footer{padding:34px 0;color:#6d7971;font-size:.86rem}
@media(max-width:850px){.product-page{grid-template-columns:1fr}.gallery-main{height:450px}}
@media(max-width:600px){.gallery-main{height:400px}.shipping-form{grid-template-columns:1fr}.thumbs{grid-template-columns:repeat(4,1fr)}}