/* Core UI (upgrade-safe) */
:root{
  --bg:#000; --card:#111; --text:#fff; --muted:#aaa; --accent:#FFD700;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Noto Sans Myanmar',system-ui,Arial,sans-serif}
.header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:#0c0c0c;border-bottom:1px solid #222;position:sticky;top:0;z-index:10}
.logo{height:36px}
.nav a{color:#ddd;text-decoration:none;margin:0 8px;padding:6px 10px;border-radius:8px}
.nav a.active,.nav a:hover{background:#1a1a1a;color:var(--accent)}
.container{max-width:1100px;margin:16px auto;padding:0 12px}
.section-title{color:var(--accent);margin:6px 0 12px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.card{background:var(--card);border-radius:14px;overflow:hidden;border:1px solid #1f1f1f;box-shadow:0 0 14px rgba(255,215,0,.12)}
.card img{width:100%;height:160px;object-fit:cover}
.card h3{font-size:1rem;margin:8px 10px}
.card .meta{display:flex;justify-content:space-between;align-items:center;padding:0 10px 8px 10px}
.price{color:var(--accent);font-weight:700}
.btns{display:flex;gap:8px;padding:0 10px 12px}
.btn{flex:1;text-align:center;background:var(--accent);color:#000;padding:8px 10px;border-radius:10px;text-decoration:none;font-weight:700}
.btn:hover{filter:brightness(1.05)}
.badge{display:inline-block;background:#222;color:#ddd;border:1px solid #333;border-radius:999px;padding:2px 8px;font-size:.75rem;margin-left:10px}
.footer{color:var(--muted);text-align:center;padding:20px}
.ad{margin:12px 0}
.sponsor img{width:100%;display:block}
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:18px;background:var(--card);padding:16px;border-radius:16px;border:1px solid #1f1f1f}
.product-detail img{width:100%;border-radius:12px}
.product-detail .buy-group{display:grid;gap:8px}
.btn-outline{background:#1b1b1b;color:var(--accent);border:1px solid var(--accent)}
.cat-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.cat-list .chip{background:#161616;border:1px solid #2a2a2a;color:#ddd;padding:6px 10px;border-radius:999px;cursor:pointer}
.cat-list .chip.active{color:#000;background:var(--accent);border-color:var(--accent)}
.prose p{line-height:1.6;color:#ddd}
@media (max-width:800px){.product-detail{grid-template-columns:1fr}}