:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #121316;
  --muted: #5b5e66;
  --brand: #0f172a;
  --accent: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --border: #e5e7eb;
  --header-h: 72px;
}
* { box-sizing: border-box; }
html, body {
  padding: 0; margin: 0; background: var(--bg); color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.header-grid{display:grid;grid-template-columns:220px 1fr auto;align-items:center;gap:16px;padding:14px 0}
.logo img{height:44px;object-fit:contain}
.layout{display:grid;grid-template-columns:20% 80%;gap:16px;padding:12px 20px}
.sidebar,.content{position:sticky;top:var(--header-h);height:calc(100vh - var(--header-h));overflow-y:auto}
.side-inner{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px}
.side-title{font-weight:700;margin-bottom:8px}
.category-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.cat-item{display:flex;align-items:center;border:1px solid var(--border);border-radius:8px;padding:8px 10px;background:#fff;color:var(--text);cursor:pointer}
.cat-item.active,.cat-item:hover{border-color:var(--accent);background:#eef2ff}
.banner{margin:12px 0 16px}
.banner img{width:100%;height:auto;border-radius:8px;display:block}
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;padding:10px 0 40px}
.toolbar { display: flex; gap: 12px; align-items: center; padding: 10px 0 6px; }
.toolbar .search-wrap { flex: 1; }
.toolbar input[type="search"] { width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-size: 14px; background: #fff; }
.toolbar input[type="search"]:focus { outline: none; border-color: #c7d2fe; box-shadow: 0 0 0 3px #e0e7ff; }
.toolbar .sort-wrap select { border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; font-size: 14px; background: #fff; }
.product-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 8px; box-shadow: 0 2px 6px rgba(16, 24, 40, 0.05); }
.product-card.out { border-color: #fca5a5; }
.product-img { width: 100%; aspect-ratio: 1/1; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; background: #fafafa; }
.product-img img { width: 100%; height: 100%; object-fit: contain; }
.status { align-self: flex-start; font-size: 12px; font-weight: 700; color: var(--danger); background: #fee2e2; border: 1px solid #fecaca; border-radius: 6px; padding: 4px 8px; }
.product-name { font-size: 16px; font-weight: 700; margin: 0; }
.product-price { font-size: 15px; font-weight: 600; color: var(--text); margin: 0; }
.product-min { font-size: 13px; color: var(--muted); margin: 0; }
.empty, .error { grid-column: 1/-1; text-align: center; color: var(--muted); padding: 30px 0; }
.pagination { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 8px 0 24px; }
.page-btn { border: 1px solid var(--border); background: #fff; color: var(--text); padding: 8px 12px; border-radius: 8px; cursor: pointer; min-width: 40px; }
.page-btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.page-info { color: var(--muted); font-size: 14px; padding: 0 6px; }
.cart-button{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:#fff;color:var(--text);padding:6px 10px;border-radius:8px;cursor:pointer}
.cart-badge{background:#ef4444;color:#fff;font-weight:700;font-size:12px;padding:2px 6px;border-radius:999px}
.search-wrap input[type="search"]{width:100%;border:1px solid var(--border);border-radius:8px;padding:10px 12px;font-size:14px;background:#fff}
.search-wrap input[type="search"]:focus{outline:none;border-color:#c7d2fe;box-shadow:0 0 0 3px #e0e7ff}
.product-top{display:grid;grid-template-columns:84px 1fr;gap:12px}
.qty-row{display:flex;align-items:center;gap:8px}
.qty-btn{border:1px solid var(--border);background:#fff;color:var(--text);width:32px;height:32px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}
.qty-input{width:72px;border:1px solid var(--border);border-radius:8px;padding:6px 8px;text-align:center}
.quote-btn{border:1px solid #f59e0b;color:#9a3412;background:#fef3c7;padding:8px 12px;border-radius:8px;font-weight:700;cursor:pointer}
.overlay{position:fixed;inset:0;background:rgba(16,24,40,0.4);backdrop-filter:blur(2px)}
.cart-drawer{position:fixed;top:0;right:0;width:min(480px, 100%);height:100%;background:#fff;box-shadow:-4px 0 16px rgba(16,24,40,0.2);display:flex;flex-direction:column}
.cart-header{display:flex;align-items:center;justify-content:space-between;background:#be123c;color:#fff;padding:14px 16px;font-weight:700}
.cart-close{border:none;background:transparent;color:#fff;font-size:18px;cursor:pointer}
.cart-items{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:12px}
.cart-item{border:1px solid var(--border);border-radius:12px;padding:12px;display:grid;grid-template-columns:64px 1fr;gap:10px}
.cart-footer{border-top:1px solid var(--border);padding:12px 16px;display:grid;gap:10px}
.cart-totals .row{display:flex;align-items:center;justify-content:space-between;padding:6px 0}
.whatsapp-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:#16a34a;color:#fff;text-decoration:none;padding:12px 16px;border-radius:10px;font-weight:700}
.fab{position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;border:none;background:#16a34a;color:#fff;font-size:22px;display:none;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(0,0,0,0.2);cursor:pointer}
.cat-drawer{position:fixed;left:0;right:0;bottom:0;height:60%;background:#fff;box-shadow:0 -4px 16px rgba(16,24,40,0.2);display:flex;flex-direction:column}
.cat-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;font-weight:700;border-bottom:1px solid var(--border)}
@media (max-width:640px){
  .header-grid{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr;padding:12px 12px}
  .sidebar,.content{position:static;height:auto;overflow:visible}
  .product-grid{grid-template-columns:1fr}
  .fab{display:inline-flex}
}