:root{
  --bg:#f6f7fb; --card:#fff; --text:#111; --muted:#666;
  --brand:#146eb4; --brand-dark:#0e5690; --accent:#ff9900; --green:#2e7d32;
  --border:#e5e7eb;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.topbar{display:flex;align-items:center;gap:16px;padding:10px 16px;background:#131921;color:#fff;position:sticky;top:0;z-index:50}
.logo{display:flex;align-items:center;gap:8px}
.logo img{height:42px;width:auto}
.brand{font-weight:800;letter-spacing:.2px}
.search{flex:1;display:flex;align-items:center}
.search input{width:100%;padding:10px 12px;border:0;border-radius:4px 0 0 4px;outline:none}
.search button{padding:10px 14px;border:0;background:var(--accent);color:#111;border-radius:0 4px 4px 0;cursor:pointer;font-weight:700}
.nav{background:#232f3e;color:#fff;padding:8px 16px;display:flex;gap:14px;flex-wrap:wrap}
.nav a{opacity:.92}
.nav a:hover{opacity:1;text-decoration:underline}
.container{max-width:1200px;margin:16px auto;padding:0 16px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.thumb{height:200px;background:#eef1f4;display:flex;align-items:center;justify-content:center}
.card-body{padding:12px;display:flex;flex-direction:column;gap:8px}
.title{font-weight:700;line-height:1.3;min-height:2.6em}
.meta{display:flex;gap:10px;align-items:flex-start}
.price{font-weight:800;color:var(--green)}
.desc{color:var(--muted);font-size:.92rem;flex:1}
.rating{font-size:.9rem;color:#b87300}
.actions{display:flex;gap:8px;margin-top:6px}
.btn{flex:1;padding:10px;border-radius:8px;border:1px solid var(--border);background:#fff;cursor:pointer;font-weight:700}
.btn.cart{background:var(--accent);border-color:#e08e00}
.btn.buy{background:var(--brand);color:#fff;border-color:transparent}
.btn.buy:hover{background:var(--brand-dark)}
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.table th,.table td{padding:10px;border-bottom:1px solid var(--border);text-align:left}
.table tfoot td{font-weight:800}
.form{background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;max-width:700px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.form label{display:block;font-weight:600;margin-bottom:6px}
.form input,.form textarea{width:100%;padding:10px;border:1px solid var(--border);border-radius:8px}
.form button{margin-top:10px}
footer{margin-top:24px;background:#131921;color:#fff}
.footer-inner{max-width:1200px;margin:0 auto;padding:20px 16px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.social{display:flex;gap:12px}
.social a{display:inline-flex;padding:8px;border-radius:8px;background:#232f3e}
.social a:hover{background:#2f3f52}
.header-links{display:flex;gap:12px;align-items:center}
.cart-badge{background:#f33;color:#fff;border-radius:999px;padding:0 6px;font-size:12px;margin-left:4px}
.notice{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px;margin:12px 0}