:root{--primary:#111827;--ink:#111827;--muted:#6b7280;--bg:#fff;--soft:#f3f4f6;--border:#e5e7eb}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.hdr{justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border);position:-webkit-sticky;position:sticky;top:0;background:#fff;z-index:10}.brand,.hdr{display:flex;align-items:center}.brand{gap:10px;font-weight:800;font-size:18px}.logo{height:30px;width:30px;object-fit:cover;border-radius:6px}.logo-fallback{font-size:22px}.cart-link{display:inline-flex;align-items:center;gap:6px;font-weight:600}.cart-count{background:var(--primary);color:#fff;border-radius:999px;min-width:20px;height:20px;display:inline-grid;place-items:center;font-size:12px;padding:0 6px}.main{max-width:1000px;margin:0 auto;padding:24px 20px 60px}.h1{font-size:24px;margin:0 0 18px}.muted{color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:18px;gap:18px}.card{border:1px solid var(--border);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}.detail-img,.thumb{aspect-ratio:1;background:var(--soft);display:grid;place-items:center;font-size:40px;overflow:hidden}.detail-img img,.thumb img{width:100%;height:100%;object-fit:cover}.card .title{padding:12px 12px 0;font-weight:600}.card .price{padding:4px 12px 12px;color:var(--muted)}.card .btn{margin:0 12px 12px}.btn{background:var(--primary);color:#fff;border:0;border-radius:8px;padding:10px 14px;font-weight:600;font-size:14px;cursor:pointer}.btn.big{width:100%;padding:14px;font-size:16px;margin-top:16px}.btn:disabled{opacity:.55;cursor:not-allowed}.detail{display:grid;grid-template-columns:1fr 1fr;grid-gap:28px;gap:28px}.detail-info .price.big{font-size:26px;font-weight:800;margin:8px 0;color:var(--ink)}.instock{color:#059669}.instock,.oos{font-weight:600}.oos{color:#dc2626}@media (max-width:640px){.detail{grid-template-columns:1fr}}.cart{display:flex;flex-direction:column;gap:10px}.cart-row{display:grid;grid-template-columns:56px 1fr auto auto auto;grid-gap:12px;gap:12px;align-items:center;border:1px solid var(--border);border-radius:10px;padding:8px 12px}.cart-thumb{width:56px;height:56px;border-radius:8px;overflow:hidden;background:var(--soft);display:grid;place-items:center}.cart-thumb img{width:100%;height:100%;object-fit:cover}.qty{display:inline-flex;align-items:center;gap:8px}.qty button{width:26px;height:26px;border:1px solid var(--border);background:#fff;border-radius:6px;cursor:pointer;font-size:16px}.link{background:none;border:0;color:#dc2626;cursor:pointer}.cart-total{display:flex;justify-content:space-between;align-items:center;margin-top:18px;font-size:18px;border-top:1px solid var(--border);padding-top:16px}.checkout{display:grid;grid-template-columns:1fr 320px;grid-gap:28px;gap:28px;align-items:start}@media (max-width:720px){.checkout{grid-template-columns:1fr}}.co-form label{display:block;font-size:13px;font-weight:600;margin:12px 0 5px}.co-form input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px}.cod-note{margin:16px 0 4px;background:var(--soft);padding:12px}.cod-note,.err{border-radius:8px}.err{background:#fef2f2;color:#dc2626;padding:10px 12px;margin-top:12px;font-size:14px}.co-summary{border:1px solid var(--border);border-radius:12px;padding:16px}.co-summary h3{margin:0 0 12px}.co-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}.co-row.total{border-top:1px solid var(--border);margin-top:8px;padding-top:12px;font-size:16px}.pay-methods{display:flex;gap:10px;margin-top:6px}.pay-opt{flex:1 1;padding:12px;border:1px solid var(--border);border-radius:8px;background:#fff;cursor:pointer;font-size:14px;font-weight:600}.pay-opt.active{border-color:var(--primary);background:var(--soft);box-shadow:inset 0 0 0 1px var(--primary)}.gateway{min-height:60vh;display:grid;place-items:center}.gw-card{max-width:380px;width:100%;border:1px solid var(--border);border-radius:14px;padding:26px;text-align:center;box-shadow:0 6px 24px rgba(0,0,0,.06)}.gw-brand{font-size:20px;font-weight:800;display:flex;gap:8px;justify-content:center;align-items:center}.gw-sandbox{font-size:10px;background:#fde68a;color:#92400e;padding:2px 6px;border-radius:6px;letter-spacing:.05em}.gw-amount{font-size:34px;font-weight:800;margin:10px 0}.gw-cancel{margin-top:10px;width:100%;background:none;border:0;color:#dc2626;cursor:pointer;padding:8px}.notfound{max-width:480px;margin:80px auto;font-family:system-ui}.ftr,.notfound{text-align:center}.ftr{color:var(--muted);font-size:13px;padding:24px;border-top:1px solid var(--border)}