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<!DOCTYPE html>
<html lang="vi">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>V.AI STUDIO | Niềm tin khách hàng là tài sản của chúng tôi</title>
<meta name="description" content="V.AI STUDIO — 8000+ sản phẩm thiết bị nhà bếp & điện máy. Malloca, Eurogold, Grob, Canzy, Demax & Điện Máy Xanh chính hãng.">
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<meta property="og:description" id="ogDesc" content="8000+ sản phẩm thiết bị nhà bếp & điện máy chính hãng. Malloca, Eurogold, Grob, Canzy, Demax & Điện Máy Xanh.">
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<style>
*{margin:0;padding:0;box-sizing:border-box}
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::-webkit-scrollbar{width:6px}::-webkit-scrollbar-thumb{background:var(--p);border-radius:3px}
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.toolbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap;gap:10px}
.result-count{font-size:.82rem;color:var(--g)}.result-count strong{color:var(--d)}
.sort-select{padding:7px 12px;border:2px solid var(--gl);border-radius:9px;font-size:.78rem;font-family:inherit;background:#fff;cursor:pointer;outline:none;font-weight:500}
.view-btns{display:flex;gap:3px}
.view-btn{width:32px;height:32px;border:2px solid var(--gl);border-radius:7px;display:flex;align-items:center;justify-content:center;cursor:pointer;background:#fff;color:var(--g);transition:var(--t);font-size:.75rem}
.view-btn.active{border-color:var(--p);color:var(--p);background:rgba(0,63,98,.04)}

/* GRID */
.pg{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px}
.pg.lv{grid-template-columns:1fr}
.pg.lv .pc{display:flex}.pg.lv .pc .pi{width:180px;height:140px;flex-shrink:0}.pg.lv .pc .pb{flex:1}

/* CARD */
.pc{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:0 1px 3px rgba(0,0,0,.06);transition:var(--t);cursor:pointer;border:2px solid transparent}
.pc:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.1);border-color:var(--p)}
.pi{height:200px;overflow:hidden;position:relative;background:#f1f5f9;display:flex;align-items:center;justify-content:center}
.pi img{width:100%;height:100%;object-fit:contain;transition:transform .35s ease;padding:6px}
.pc:hover .pi img{transform:scale(1.05)}
.pi-badge{position:absolute;top:8px;left:8px;background:var(--p);color:#fff;padding:3px 8px;border-radius:5px;font-size:.6rem;font-weight:700}
.pb{padding:14px}
.pn{font-size:.82rem;font-weight:600;color:var(--d);line-height:1.35;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.2em}
.pp{font-size:1rem;font-weight:800;color:var(--p)}
.pf{display:flex;align-items:center;justify-content:space-between;margin-top:8px}
.pf i{color:var(--a);font-size:.8rem}

/* PAGINATION */
.pagination{display:flex;justify-content:center;gap:5px;margin-top:26px;flex-wrap:wrap}
.pgb{width:36px;height:36px;border:2px solid var(--gl);border-radius:9px;display:flex;align-items:center;justify-content:center;cursor:pointer;background:#fff;font-size:.82rem;font-weight:600;transition:var(--t)}
.pgb:hover{border-color:var(--p);color:var(--p)}
.pgb.active{background:var(--p);color:#fff;border-color:var(--p)}
.pgb:disabled{opacity:.3;cursor:default}
#catTabs{display:flex;gap:6px;padding:4px 0 12px;margin-bottom:16px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
#catTabs::-webkit-scrollbar{display:none}
#catTabs .ctab{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:2px solid var(--gl);border-radius:50px;cursor:pointer;background:#fff;font-size:.78rem;font-weight:600;transition:var(--t);white-space:nowrap;flex-shrink:0;color:var(--d);line-height:1}
#catTabs .ctab:hover{border-color:var(--p);color:var(--p);background:rgba(0,63,98,.03)}
#catTabs .ctab.active{background:var(--p);color:#fff;border-color:var(--p)}
#catTabs .ctab i{font-size:.7rem}
#catTabs .ctab .cnt{font-size:.6rem;opacity:.65;margin-left:2px}
#catTabs .ctab.active .cnt{opacity:.8}
@media(max-width:768px){#catTabs .ctab{padding:7px 12px;font-size:.7rem}}
.pg-dots{display:flex;align-items:center;font-size:.8rem;color:var(--g);padding:0 4px}

/* ========== DETAIL VIEW ========== */
#detailView{display:none;min-height:80vh}
#detailView.show{display:block}
#listView.hide{display:none}

.detail-back{display:inline-flex;align-items:center;gap:8px;color:var(--p);font-weight:600;font-size:.85rem;cursor:pointer;padding:8px 0;margin-bottom:20px;transition:var(--t)}
.detail-back:hover{color:var(--a)}

.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;background:#fff;border-radius:20px;padding:32px;box-shadow:0 2px 16px rgba(0,0,0,.06)}

/* Gallery — Carousel */
.gallery{position:relative;width:100%}
.gallery-carousel{position:relative;width:100%;overflow:hidden;border-radius:16px;background:#f8fafc;margin-bottom:10px}
.gallery-track{display:flex;transition:transform .3s ease;will-change:transform}
.gallery-slide{min-width:100%;display:flex;align-items:center;justify-content:center;overflow:hidden;max-height:75vh}
.gallery-slide img{display:block;width:100%;height:auto;max-height:75vh;object-fit:contain}
.gallery-nav{position:absolute;top:50%;transform:translateY(-50%);width:36px;height:36px;border-radius:50%;background:rgba(0,0,0,.45);color:#fff;border:none;cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;z-index:3;opacity:0;transition:opacity .2s}
.gallery-carousel:hover .gallery-nav{opacity:1}
.gallery-nav.gn-prev{left:8px}
.gallery-nav.gn-next{right:8px}
.gallery-dots{display:flex;justify-content:center;gap:6px;padding:6px 0}
.gallery-dot{width:8px;height:8px;border-radius:50%;background:var(--gl);cursor:pointer;transition:var(--t)}
.gallery-dot.active{background:var(--p);width:20px;border-radius:4px}
.gallery-thumbs{display:flex;flex-wrap:wrap;gap:6px;padding-bottom:6px}
.gallery-thumbs::-webkit-scrollbar{display:none}
.gallery-thumb{width:56px;height:56px;min-width:56px;border-radius:8px;overflow:hidden;border:2px solid var(--gl);cursor:pointer;flex-shrink:0;transition:var(--t);background:#f8fafc}
.gallery-thumb.active{border-color:var(--p)}
.gallery-thumb img{width:100%;height:100%;object-fit:contain;padding:2px}
@media(max-width:768px){
.gallery-nav{opacity:.7;width:32px;height:32px;font-size:.85rem}
.gallery-slide{max-height:60vh}
.gallery-slide img{max-height:60vh}
.gallery-thumbs{gap:5px}
.gallery-thumb{width:48px;height:48px;min-width:48px}
}

/* Info */
.detail-info{}
.detail-sku{font-size:.72rem;color:var(--g);margin-bottom:6px;font-weight:500}
.detail-cat{display:inline-flex;align-items:center;gap:6px;background:rgba(0,63,98,.06);color:var(--p);padding:5px 14px;border-radius:50px;font-size:.72rem;font-weight:700;margin-bottom:14px}
.detail-name{font-size:1.6rem;font-weight:800;color:var(--d);line-height:1.3;margin-bottom:16px}
.detail-price{font-size:1.8rem;font-weight:900;color:var(--p);margin-bottom:20px}
.detail-summary{font-size:.88rem;color:var(--g);line-height:1.7;margin-bottom:24px;white-space:pre-line}
.detail-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.detail-badge{display:flex;align-items:center;gap:6px;background:rgba(0,63,98,.04);padding:8px 14px;border-radius:10px;font-size:.78rem;font-weight:500;color:var(--d)}
.detail-badge i{color:var(--a);font-size:.75rem}
.detail-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:var(--p);color:#fff;border-radius:12px;font-weight:700;font-size:.88rem;transition:var(--t);border:none;cursor:pointer;font-family:inherit}
.detail-btn:hover{background:var(--pl);transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,63,98,.25)}
.detail-btn-outline{background:transparent;border:2px solid var(--p);color:var(--p)}
.detail-btn-outline:hover{background:var(--p);color:#fff}

/* TABS */
.dtabs{margin-top:30px;background:#fff;border-radius:20px;padding:0;box-shadow:0 2px 16px rgba(0,0,0,.06);overflow:hidden}
.dtab-headers{display:flex;border-bottom:2px solid var(--gl);overflow-x:auto}
.dtab-h{padding:16px 28px;font-size:.85rem;font-weight:600;color:var(--g);cursor:pointer;transition:var(--t);border-bottom:3px solid transparent;white-space:nowrap;flex-shrink:0}
.dtab-h:hover{color:var(--p)}
.dtab-h.active{color:var(--p);border-color:var(--a);background:rgba(0,63,98,.02)}
.dtab-body{padding:28px}
.dtab-content{display:none}
.dtab-content.active{display:block}

/* Specs table */
.specs-table{width:100%;border-collapse:collapse}
.specs-table tr:nth-child(even){background:#f8fafc}
.specs-table td{padding:11px 16px;font-size:.84rem;border-bottom:1px solid var(--gl)}
.specs-table td:first-child{font-weight:600;color:var(--d);width:40%;background:rgba(0,63,98,.02)}
.specs-table td:last-child{color:var(--g)}

/* Features list */
.feat-list{list-style:none;columns:2;column-gap:24px}
.feat-item{padding:8px 0;font-size:.84rem;color:var(--d);display:flex;align-items:flex-start;gap:8px;break-inside:avoid}
.feat-item i{color:var(--a);margin-top:3px;font-size:.7rem;flex-shrink:0}

/* Description */
.desc-text{font-size:.88rem;color:var(--d);line-height:1.8;white-space:pre-line;overflow:hidden;word-break:break-word}
.desc-text img,.dtab-body img,.specs-table img{max-width:100%;height:auto}

/* Video */
.video-wrap{position:relative;padding-bottom:56.25%;height:0;border-radius:16px;overflow:hidden}
.video-wrap iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}

/* Empty */
.empty{text-align:center;padding:50px 20px;color:var(--g)}
.empty i{font-size:2.5rem;opacity:.3;margin-bottom:14px;display:block}
.empty h3{font-size:1rem;font-weight:700;color:var(--d);margin-bottom:6px}
.reset-btn{margin-top:14px;padding:9px 22px;background:var(--p);color:#fff;border:none;border-radius:9px;cursor:pointer;font-weight:600;font-size:.82rem;font-family:inherit}

/* MOBILE SIDEBAR */
.msb{display:none;position:fixed;inset:0;background:#fff;z-index:150;overflow-y:auto;padding:18px;flex-direction:column}
.msb.open{display:flex}
.msb-h{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.msb-close{width:34px;height:34px;border:none;background:var(--gl);border-radius:9px;cursor:pointer;font-size:.95rem}

/* FOOTER */
.footer{background:var(--d);color:rgba(255,255,255,.65);padding:44px 0 20px;margin-top:36px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.footer h4{color:#fff;font-size:.78rem;font-weight:700;margin-bottom:14px;text-transform:uppercase;letter-spacing:1px}
.footer-links{list-style:none}.footer-links li{margin-bottom:7px}
.footer-links a{color:rgba(255,255,255,.5);font-size:.78rem;transition:var(--t)}.footer-links a:hover{color:var(--a)}
.footer-brand p{font-size:.78rem;line-height:1.6;margin:8px 0 14px}
.social-links{display:flex;gap:7px}
.social-links a{width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.07);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.55);transition:var(--t);font-size:.8rem}
.social-links a:hover{background:var(--a);color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding-top:16px;text-align:center;font-size:.7rem}

/* RESPONSIVE */
@media(max-width:1024px){.sidebar{width:230px}.pg{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.detail-grid{grid-template-columns:1fr;gap:24px}.feat-list{columns:1}}
@media(max-width:768px){
.sidebar{display:none}.hamburger{display:block}
.hero h1{font-size:1.6rem}.hero-stats{gap:20px}.hero-stat strong{font-size:1.2rem}
.search-box{max-width:none;order:3;flex-basis:100%}.header .container{flex-wrap:wrap}
.pg{grid-template-columns:repeat(2,1fr);gap:10px}.pi{height:150px}.pb{padding:10px}.pn{font-size:.75rem}.pp{font-size:.88rem}
.detail-grid{grid-template-columns:1fr;padding:16px}.detail-name{font-size:1.2rem}.detail-price{font-size:1.4rem}
.detail-info{word-break:break-word}
.dtab-h{padding:12px 18px;font-size:.8rem}
.footer-grid{grid-template-columns:1fr 1fr}
}

.fade{opacity:0;transform:translateY(14px);transition:opacity .35s,transform .35s}.fade.vis{opacity:1;transform:none}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* ===== NAV TABS ===== */
.nav-tabs{display:flex;gap:2px;margin-left:16px}
.nav-tab{padding:8px 14px;border-radius:9px;font-size:.78rem;font-weight:600;cursor:pointer;transition:var(--t);color:var(--g);position:relative}
.nav-tab:hover{color:var(--p);background:rgba(0,63,98,.04)}
.nav-tab.active{color:var(--p);background:rgba(0,63,98,.08)}

/* ===== CART BADGE ===== */
.cart-badge{position:relative}
.cart-num{position:absolute;top:-4px;right:-4px;background:var(--a);color:#fff;font-size:.55rem;font-weight:800;width:16px;height:16px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:2px solid #fff}

/* ===== PAGE SECTIONS ===== */
.page-section{display:none;padding:28px 0;min-height:60vh}
.page-section.active{display:block}

/* ===== CATALOGUE ===== */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-top:24px}
.cat-card{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.06);transition:var(--t);cursor:pointer;border:2px solid transparent}
.cat-card:hover{border-color:var(--p);transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.1)}
.cat-card img{width:100%;height:200px;object-fit:cover}
.cat-card-body{padding:16px;text-align:center}
.cat-card-body h3{font-size:.95rem;font-weight:700;color:var(--d);margin-bottom:6px}
.cat-card-body p{font-size:.78rem;color:var(--g)}
.cat-iframe-wrap{margin-top:20px;background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 2px 16px rgba(0,0,0,.06)}
.cat-iframe-wrap iframe{width:100%;height:80vh;border:none}
.cat-back{display:inline-flex;align-items:center;gap:8px;color:var(--p);font-weight:600;font-size:.85rem;cursor:pointer;padding:8px 0;margin-bottom:16px}

/* ===== CONTACT ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:24px}
.contact-card{background:#fff;border-radius:var(--r);padding:28px;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.contact-card h3{font-size:1.1rem;font-weight:700;color:var(--d);margin-bottom:20px;display:flex;align-items:center;gap:10px}
.contact-card h3 i{color:var(--a)}
.contact-info{list-style:none}
.contact-info li{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--gl);font-size:.88rem;color:var(--d)}
.contact-info li:last-child{border:none}
.contact-info li i{color:var(--p);width:20px;text-align:center;margin-top:3px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:.82rem;font-weight:600;color:var(--d);margin-bottom:6px}
.form-input{width:100%;padding:10px 14px;border:2px solid var(--gl);border-radius:10px;font-size:.85rem;font-family:inherit;outline:none;transition:var(--t)}
.form-input:focus{border-color:var(--p);box-shadow:0 0 0 3px rgba(0,63,98,.08)}
textarea.form-input{height:120px;resize:vertical}
.form-btn{padding:12px 28px;background:var(--p);color:#fff;border:none;border-radius:10px;font-weight:700;font-size:.88rem;cursor:pointer;font-family:inherit;transition:var(--t);width:100%}
.form-btn:hover{background:var(--pl)}
.map-wrap{margin-top:20px;border-radius:12px;overflow:hidden;height:280px}
.map-wrap iframe{width:100%;height:100%;border:none}

/* ===== CART DRAWER ===== */
.cart-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200;backdrop-filter:blur(3px)}
.cart-overlay.open{display:block}
.cart-drawer{position:fixed;top:0;right:0;width:400px;max-width:90vw;height:100vh;height:100dvh;background:#fff;z-index:201;display:flex;flex-direction:column;box-shadow:-4px 0 30px rgba(0,0,0,.15);transform:translateX(100%);transition:transform .35s ease;visibility:hidden}
.cart-drawer.open{transform:translateX(0);visibility:visible}
.cart-header{padding:20px;border-bottom:2px solid var(--gl);display:flex;align-items:center;justify-content:space-between}
.cart-header h3{font-size:1rem;font-weight:700;display:flex;align-items:center;gap:8px}
.cart-header h3 i{color:var(--a)}
.cart-close{width:34px;height:34px;border:none;background:var(--gl);border-radius:9px;cursor:pointer;font-size:.9rem}
.cart-items{flex:1;overflow-y:auto;padding:16px;min-height:0}
.cart-item{display:flex;gap:12px;padding:12px;background:var(--l);border-radius:12px;margin-bottom:10px}
.cart-item img{width:70px;height:70px;object-fit:contain;border-radius:8px;background:#fff;flex-shrink:0}
.cart-item-info{flex:1;min-width:0}
.cart-item-name{font-size:.8rem;font-weight:600;color:var(--d);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cart-item-price{font-size:.88rem;font-weight:800;color:var(--p);margin-top:4px}
.cart-item-qty{display:flex;align-items:center;gap:8px;margin-top:6px}
.qty-btn{width:26px;height:26px;border:1px solid var(--gl);border-radius:6px;background:#fff;cursor:pointer;font-size:.8rem;display:flex;align-items:center;justify-content:center}
.qty-val{font-size:.82rem;font-weight:700;min-width:20px;text-align:center}
.cart-item-del{background:none;border:none;color:#dc3545;cursor:pointer;font-size:.85rem;margin-left:auto;padding:4px}
.cart-empty{text-align:center;padding:40px;color:var(--g)}
.cart-empty i{font-size:2.5rem;opacity:.3;display:block;margin-bottom:12px}
.cart-footer{padding:10px 14px;border-top:2px solid var(--gl);background:#fff;flex-shrink:0;max-height:none}
.cart-footer-btns{display:flex;gap:6px;margin-top:6px}
.cart-footer-btns .cart-checkout-btn{flex:1;padding:10px 6px;font-size:.78rem;border-radius:10px}
.cart-total{display:flex;justify-content:space-between;font-size:.92rem;font-weight:800;color:var(--d);margin-bottom:0}
.cart-checkout-btn{width:100%;padding:14px;background:var(--a);color:#fff;border:none;border-radius:12px;font-weight:700;font-size:.92rem;cursor:pointer;font-family:inherit;transition:var(--t);display:flex;align-items:center;justify-content:center;gap:8px}
.cart-checkout-btn:hover{background:var(--al);transform:translateY(-1px)}

/* ===== CHECKOUT MODAL ===== */
.checkout-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:300;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(4px)}
.checkout-overlay.open{display:flex}
.checkout-modal{background:#fff;border-radius:20px;max-width:550px;width:100%;max-height:92vh;overflow-y:auto;padding:32px;position:relative}
.checkout-close{position:absolute;top:16px;right:16px;width:34px;height:34px;border:none;background:var(--gl);border-radius:9px;cursor:pointer;font-size:.9rem}
.checkout-title{font-size:1.3rem;font-weight:800;color:var(--d);margin-bottom:4px}
.checkout-sub{font-size:.82rem;color:var(--g);margin-bottom:24px}
.checkout-summary{background:var(--l);border-radius:12px;padding:16px;margin-bottom:20px}
.checkout-summary-item{display:flex;justify-content:space-between;font-size:.82rem;padding:4px 0;color:var(--d)}
.checkout-summary-item.total{font-weight:800;font-size:1rem;color:var(--p);border-top:2px solid var(--gl);padding-top:10px;margin-top:8px}
.qr-section{text-align:center;background:var(--l);border-radius:16px;padding:24px;margin:20px 0}
.qr-section img{max-width:260px;margin:0 auto 16px;border-radius:12px;border:3px solid var(--gl)}
.qr-bank-info{font-size:.82rem;color:var(--d);line-height:1.8}
.qr-bank-info strong{color:var(--p)}
.copy-btn{display:inline-flex;align-items:center;gap:4px;background:var(--p);color:#fff;border:none;padding:4px 10px;border-radius:6px;font-size:.7rem;cursor:pointer;font-family:inherit;margin-left:6px}
.checkout-note{font-size:.78rem;color:var(--g);text-align:center;margin-top:16px;line-height:1.6}
.checkout-done-btn{width:100%;padding:14px;background:var(--p);color:#fff;border:none;border-radius:12px;font-weight:700;font-size:.92rem;cursor:pointer;font-family:inherit;margin-top:16px}

/* ADD TO CART BTN (in detail) */
.add-cart-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:var(--a);color:#fff;border-radius:12px;font-weight:700;font-size:.88rem;transition:var(--t);border:none;cursor:pointer;font-family:inherit}
.add-cart-btn:hover{background:var(--al);transform:translateY(-2px);box-shadow:0 8px 20px rgba(219,152,21,.3)}

@media(max-width:768px){
.nav-tabs{display:none}
.contact-grid{grid-template-columns:1fr}
.cart-drawer{width:100%;max-width:100%;height:100vh;height:100dvh}
.cart-footer{padding:8px 12px}
.cart-footer-btns .cart-checkout-btn{padding:10px 4px;font-size:.76rem;gap:4px}
.cart-total{font-size:.88rem}
}

/* ===== AI CHATBOX ===== */
.chat-fab{position:fixed;bottom:24px;right:24px;z-index:180;width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--p),#0077b6);color:#fff;border:none;cursor:pointer;box-shadow:0 4px 20px rgba(0,63,98,.4);display:flex;align-items:center;justify-content:center;font-size:1.4rem;transition:var(--t)}
.chat-fab:hover{transform:scale(1.1);box-shadow:0 6px 28px rgba(0,63,98,.5)}
.chat-fab-label{position:fixed;bottom:32px;right:90px;z-index:180;background:var(--p);color:#fff;padding:6px 14px;border-radius:8px;font-size:.75rem;font-weight:600;white-space:nowrap;box-shadow:0 2px 8px rgba(0,0,0,.15);pointer-events:none;opacity:0;transition:opacity .3s}
.chat-fab:hover+.chat-fab-label{opacity:1}
.chat-overlay2{display:none;position:fixed;inset:0;background:rgba(0,0,0,.3);z-index:190;backdrop-filter:blur(2px)}
.chat-overlay2.open{display:block}
.chatbox{position:fixed;bottom:0;right:0;width:400px;max-width:100vw;height:560px;max-height:calc(100vh - 48px);background:#fff;border-radius:20px;box-shadow:0 8px 40px rgba(0,0,0,.18);z-index:200;display:none;flex-direction:column;overflow:hidden}
.chatbox.open{display:flex}
.chat-head{background:linear-gradient(135deg,var(--p),#0077b6);color:#fff;padding:14px 16px;padding-top:max(14px, env(safe-area-inset-top, 14px));display:flex;align-items:center;gap:12px;flex-shrink:0}
.chat-head-avatar{width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
.chat-head-info h4{font-size:.9rem;font-weight:700}.chat-head-info span{font-size:.68rem;opacity:.75}
.chat-close{margin-left:auto;width:40px;height:40px;min-width:40px;min-height:40px;border-radius:50%;background:rgba(255,255,255,.25);border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:var(--t)}
.chat-close:hover{background:rgba(255,255,255,.4)}
.chat-body{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px;background:#f8fafc}
.chat-msg{max-width:88%;padding:11px 15px;border-radius:16px;font-size:.84rem;line-height:1.55;word-wrap:break-word}
.chat-msg.bot{background:#fff;color:var(--d);align-self:flex-start;border:1px solid var(--gl);border-bottom-left-radius:4px}
.chat-msg.user{background:var(--p);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.chat-msg a{color:var(--a);font-weight:600;text-decoration:underline}
.chat-msg.bot a{color:var(--p)}
.chat-typing{display:flex;gap:4px;padding:11px 15px;align-self:flex-start;background:#fff;border-radius:16px;border:1px solid var(--gl);border-bottom-left-radius:4px}
.chat-typing span{width:7px;height:7px;background:var(--g);border-radius:50%;animation:blink 1.4s infinite}
.chat-typing span:nth-child(2){animation-delay:.2s}
.chat-typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.3}40%{opacity:1}}
.chat-suggestions{display:flex;flex-wrap:wrap;gap:6px;padding:0 16px 10px}
.chat-sug{padding:6px 12px;background:#fff;border:1.5px solid var(--gl);border-radius:20px;font-size:.75rem;font-weight:500;color:var(--p);cursor:pointer;transition:var(--t);white-space:nowrap}
.chat-sug:hover{border-color:var(--p);background:rgba(0,63,98,.04)}
.chat-foot{padding:10px 14px;padding-bottom:max(10px, env(safe-area-inset-bottom, 10px));border-top:1.5px solid var(--gl);display:flex;gap:8px;background:#fff;flex-shrink:0}
.chat-input{flex:1;padding:10px 14px;border:1.5px solid var(--gl);border-radius:12px;font-size:.85rem;font-family:inherit;outline:none;resize:none;max-height:80px;transition:var(--t)}
.chat-input:focus{border-color:var(--p)}
.chat-send{width:40px;height:40px;border-radius:10px;background:var(--p);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.9rem;transition:var(--t);flex-shrink:0}
.chat-send:hover{background:var(--pl)}
.chat-send:disabled{opacity:.4;cursor:default}

/* ===== SHARE POPOVER ===== */
.share-popover-overlay{display:none;position:fixed;inset:0;z-index:240;background:rgba(0,0,0,.35);backdrop-filter:blur(2px)}
.share-popover-overlay.open{display:flex;align-items:center;justify-content:center}
.share-popover{background:#fff;border-radius:18px;padding:24px;box-shadow:0 8px 40px rgba(0,0,0,.18);max-width:340px;width:calc(100vw - 40px)}
.share-popover h4{font-size:.92rem;font-weight:700;color:var(--d);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.share-popover h4 i{color:var(--a)}
.share-close-btn{position:absolute;top:14px;right:14px;width:30px;height:30px;border:none;background:var(--gl);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.8rem}
.share-apps{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:16px}
.share-app{display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;transition:var(--t);padding:8px;border-radius:12px}
.share-app:hover{background:var(--l)}
.share-app-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.15rem;color:#fff}
.share-app span{font-size:.65rem;font-weight:600;color:var(--g)}
.share-link-box{display:flex;gap:6px}
.share-link-input{flex:1;padding:9px 10px;border:1.5px solid var(--gl);border-radius:8px;font-size:.76rem;font-family:inherit;outline:none;background:var(--l);color:var(--d)}
.share-link-copy{padding:9px 14px;background:var(--p);color:#fff;border:none;border-radius:8px;font-size:.76rem;font-weight:700;cursor:pointer;font-family:inherit;white-space:nowrap;transition:var(--t)}
.share-link-copy:hover{background:var(--pl)}

@media(max-width:768px){
.chatbox{bottom:0;right:0;width:100%;max-width:100%;height:100%;max-height:100vh;max-height:100dvh;border-radius:0;padding-top:0}
.chatbox .chat-head{padding-top:max(14px, env(safe-area-inset-top, 14px))}
.chat-fab{bottom:16px;right:16px;width:50px;height:50px;font-size:1.2rem}
.chat-fab-label{display:none}
}

/* ===== QUOTATION MODAL ===== */
.quote-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:300;align-items:center;justify-content:center;padding:16px;backdrop-filter:blur(4px)}
.quote-overlay.open{display:flex}
.quote-modal{background:#fff;border-radius:20px;max-width:960px;width:100%;max-height:92vh;overflow-y:auto;padding:0;position:relative}
.quote-head{background:linear-gradient(135deg,var(--p),#0077b6);color:#fff;padding:24px 28px;border-radius:20px 20px 0 0}
.quote-head h2{font-size:1.2rem;font-weight:800;margin-bottom:4px}
.quote-head p{font-size:.8rem;opacity:.75}
.quote-close{position:absolute;top:16px;right:16px;width:34px;height:34px;border:none;background:rgba(255,255,255,.15);border-radius:9px;cursor:pointer;color:#fff;font-size:.9rem;display:flex;align-items:center;justify-content:center}
.quote-body{padding:24px 28px}
.quote-section{margin-bottom:20px}
.quote-section h3{font-size:.88rem;font-weight:700;color:var(--d);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.quote-section h3 i{color:var(--a);font-size:.8rem}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.quote-field label{display:block;font-size:.76rem;font-weight:600;color:var(--g);margin-bottom:4px}
.quote-field input{width:100%;padding:9px 12px;border:1.5px solid var(--gl);border-radius:8px;font-size:.84rem;font-family:inherit;outline:none}
.quote-field input:focus{border-color:var(--p)}
.quote-table{width:100%;border-collapse:collapse;font-size:.78rem;margin-top:8px}
.quote-table th{background:var(--p);color:#fff;padding:8px 6px;font-weight:600;text-align:center;white-space:nowrap}
.quote-table td{padding:8px 6px;border-bottom:1px solid var(--gl);vertical-align:middle}
.quote-table .qt-img{width:72px;height:72px;object-fit:contain;border-radius:6px;background:var(--l);border:1px solid var(--gl)}
.quote-table .qt-name{font-weight:600;color:var(--d)}
.quote-table .qt-price{text-align:right;white-space:nowrap}
.quote-table .qt-disc{width:80px;padding:5px 6px;border:1.5px solid var(--gl);border-radius:6px;font-size:.78rem;text-align:right;font-family:inherit;outline:none}
.quote-table .qt-disc:focus{border-color:var(--p)}
.quote-table .qt-note{width:100%;padding:5px 6px;border:1.5px solid var(--gl);border-radius:6px;font-size:.78rem;font-family:inherit;outline:none}
.quote-total-row td{font-weight:800;font-size:.88rem;color:var(--p);border-top:2px solid var(--p)}
.quote-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap;justify-content:center}
.quote-btn{padding:12px 24px;border:none;border-radius:10px;font-weight:700;font-size:.85rem;cursor:pointer;font-family:inherit;display:flex;align-items:center;gap:8px;transition:var(--t)}
.quote-btn-excel{background:#217346;color:#fff}.quote-btn-excel:hover{background:#1a5c38}
.quote-btn-pdf{background:#dc3545;color:#fff}.quote-btn-pdf:hover{background:#b02a37}
.quote-btn-print{background:var(--p);color:#fff}.quote-btn-print:hover{background:var(--pl)}
@media(max-width:768px){.quote-grid{grid-template-columns:1fr}.quote-modal{border-radius:12px}.quote-table{font-size:.7rem}}


/* ===== ADD PRODUCT URL MODAL ===== */
.add-product-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:360;align-items:center;justify-content:center;padding:18px;backdrop-filter:blur(4px)}
.add-product-overlay.open{display:flex}
.add-product-modal{background:#fff;border-radius:20px;max-width:560px;width:100%;box-shadow:0 12px 44px rgba(0,0,0,.22);overflow:hidden}
.add-product-head{background:linear-gradient(135deg,var(--p),#0077b6);color:#fff;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.add-product-head h3{font-size:1.05rem;font-weight:800;display:flex;align-items:center;gap:9px;margin:0}
.add-product-close{width:34px;height:34px;border:none;background:rgba(255,255,255,.18);color:#fff;border-radius:10px;cursor:pointer}
.add-product-body{padding:22px 24px}
.add-product-body label{display:block;font-size:.78rem;font-weight:700;color:var(--d);margin:12px 0 6px}
.add-product-input{width:100%;padding:11px 13px;border:2px solid var(--gl);border-radius:10px;font-size:.86rem;font-family:inherit;outline:none}
.add-product-input:focus{border-color:var(--p);box-shadow:0 0 0 3px rgba(0,63,98,.08)}
.add-product-hint{font-size:.75rem;color:var(--g);line-height:1.55;margin-top:10px;background:#f8fafc;border-radius:10px;padding:10px 12px}
.add-product-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.add-product-btn{border:none;border-radius:10px;padding:11px 16px;font-weight:800;cursor:pointer;font-family:inherit;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.add-product-btn.primary{background:var(--p);color:#fff;flex:1}.add-product-btn.secondary{background:var(--gl);color:var(--d)}
.add-product-status{font-size:.8rem;margin-top:14px;line-height:1.6;white-space:pre-line}.add-product-status.ok{color:#047857}.add-product-status.err{color:#b91c1c}
@media(max-width:768px){.add-product-modal{border-radius:14px}.add-product-head,.add-product-body{padding:16px}.add-product-actions{flex-direction:column}.add-product-btn{width:100%}}

.checkout-done-btn{display:none !important}.vas-unlocked .checkout-done-btn{display:flex !important}
.chat-msg.bot{max-height:58vh;overflow-y:auto;overflow-x:hidden;scrollbar-width:thin}.chat-msg.bot::-webkit-scrollbar{width:5px}.chat-msg.bot::-webkit-scrollbar-thumb{background:#94a3b8;border-radius:8px}
</style>
<!-- Libraries for quotation export -->
<script src="https://cdn.jsdelivr.net/npm/exceljs@4.4.0/dist/exceljs.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/html2canvas/1.4.1/html2canvas.min.js"></script>
</head>
<body>

<div class="topbar"><div class="container">
<div class="topbar-item"><i class="fas fa-truck-fast"></i> Miễn phí vận chuyển</div>
<div class="topbar-item"><i class="fas fa-shield-halved"></i> Bảo hành chính hãng</div>
<div class="topbar-item"><i class="fas fa-headset"></i> Hỗ trợ 24/7</div>

</div></div>

<!-- ADD PRODUCT BY URL MODAL -->
<div class="add-product-overlay" id="addProductOverlay" onclick="if(event.target===this)closeAddProductModal()">
  <div class="add-product-modal">
    <div class="add-product-head">
      <h3><i class="fas fa-link"></i> Thêm sản phẩm qua URL</h3>
      <button class="add-product-close" onclick="closeAddProductModal()"><i class="fas fa-times"></i></button>
    </div>
    <div class="add-product-body">
      <label>Mã truy cập</label>
      <input class="add-product-input" id="addProductSecret" type="password" placeholder="Nhập mã V.AI STUDIO">
      <label>URL sản phẩm</label>
      <input class="add-product-input" id="addProductUrl" type="url" placeholder="https://.../san-pham/...">
      <div class="add-product-hint">AI/scraper sẽ phân tích cấu trúc website để lấy hình ảnh, tên SP, mã/model, giá, brand, danh mục, mô tả, thông số kỹ thuật và tính năng; sau đó lưu vào <b>products_url_added.json</b>.</div>
      <div class="add-product-actions">
        <button class="add-product-btn secondary" onclick="closeAddProductModal()"><i class="fas fa-times"></i> Đóng</button>
        <button class="add-product-btn primary" id="addProductSubmit" onclick="submitAddProductUrl()"><i class="fas fa-wand-magic-sparkles"></i> Thêm SP</button>
      </div>
      <div class="add-product-status" id="addProductStatus"></div>
    </div>
  </div>
</div>

<header class="header"><div class="container">
<div class="logo" onclick="goHome()"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_200.png" alt="V.AI STUDIO" style="height:44px;object-fit:contain"><div><div class="logo-name">V.AI <span>STUDIO</span></div><div class="logo-sub">Niềm tin khách hàng là tài sản của chúng tôi</div></div></div>
<div class="search-box"><i class="fas fa-search"></i><input type="text" id="q" placeholder="Tìm sản phẩm Malloca, Eurogold, Grob, Canzy & Demax..." oninput="doSearch()"><span class="search-count" id="sc"></span></div>
<div class="nav-tabs">
<div class="nav-tab active" data-page="products" onclick="showPage('products')"><i class="fas fa-th-large"></i> Sản Phẩm</div>
<div class="nav-tab" data-page="catalogue" onclick="showPage('catalogue')"><i class="fas fa-book-open"></i> Catalogue</div>
<div class="nav-tab" data-page="contact" onclick="showPage('contact')"><i class="fas fa-envelope"></i> Liên Hệ</div>
</div>
<div class="nav-icons">
<a href="#" onclick="toggleChat();return false" title="Tư Vấn AI" style="background:linear-gradient(135deg,var(--p),#0077b6);color:#fff"><i class="fas fa-robot"></i></a>
<a href="#" onclick="openAddProductModal();return false" title="Thêm sản phẩm qua URL" style="background:rgba(219,152,21,.12);color:var(--a)"><i class="fas fa-plus"></i></a>
<a href="#" onclick="openCart();return false" title="Giỏ hàng" class="cart-badge"><i class="fas fa-shopping-cart"></i><span class="cart-num" id="cartNum" style="display:none">0</span></a>
</div>
<button class="hamburger" onclick="document.getElementById('msb').classList.toggle('open')"><span></span><span></span><span></span></button>
</div></header>

<section class="hero"><div class="container">
<img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_600.png" alt="V.AI STUDIO" style="height:80px;object-fit:contain;margin-bottom:12px">
<h1>V.AI <span>STUDIO</span></h1>
<p style="font-size:1rem;font-style:italic;color:rgba(255,255,255,.9);margin-bottom:6px">❝ Niềm tin khách hàng là tài sản của chúng tôi ❞</p>
<p>Thiết bị nhà bếp & khóa thông minh — Malloca, Eurogold, Grob, Canzy & Demax</p>
<div class="hero-stats" id="heroStats">
<div class="hero-stat"><strong id="statTotal">1979</strong><span>Sản phẩm</span></div>
<div class="hero-stat"><strong id="statCats">17</strong><span>Danh mục</span></div>
<div class="hero-stat"><strong id="statBrands">8</strong><span>Đối tác</span></div>
<div class="hero-stat"><strong>100%</strong><span>Dữ liệu thật</span></div>
</div>
</div></section>
<!-- AI SEARCH + QUOTE -->



<!-- AI SEARCH -->
<div style="background:#fff;padding:16px 0;border-bottom:1px solid #e2e8f0">
<div class="container" style="display:flex;gap:12px;flex-wrap:wrap;justify-content:center;max-width:900px">
<div style="flex:1;min-width:280px;position:relative">
<i class="fas fa-robot" style="position:absolute;left:12px;top:50%;transform:translateY(-50%);color:#003f62;font-size:.85rem"></i>
<input type="text" id="aiSearch" placeholder="🔍 AI tìm kiếm: bếp từ đôi dưới 15 triệu, máy hút mùi tốt nhất..." style="width:100%;padding:11px 14px 11px 36px;border:2px solid #003f62;border-radius:10px;font-size:.85rem;font-family:inherit;outline:none" onkeypress="if(event.key==='Enter')doAISearch()">
</div>
<button onclick="doAISearch()" style="padding:11px 20px;background:#003f62;color:#fff;border:none;border-radius:10px;font-weight:700;font-size:.85rem;cursor:pointer;white-space:nowrap"><i class="fas fa-search"></i> Tìm AI</button>
</div>
<div id="aiResults" style="max-width:900px;margin:12px auto 0;display:none;background:#f8fafc;border-radius:10px;padding:14px;font-size:.82rem"></div>
</div>
<!-- Partner Logos -->
<div style="background:#fff;padding:14px 0;border-bottom:1px solid var(--gl)">
<div class="container" style="display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap">
<span style="font-size:.68rem;font-weight:700;color:var(--g);text-transform:uppercase;letter-spacing:1px;white-space:nowrap">Đối tác:</span>
<a href="javascript:void(0)" onclick="setBrand('Malloca')" style="display:flex;align-items:center"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/malloca.png" alt="Malloca" style="height:28px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'"></a>
<a href="javascript:void(0)" onclick="setBrand('Eurogold')" style="display:flex;align-items:center"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/eurogold.png" alt="Eurogold" style="height:26px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'"></a>
<a href="javascript:void(0)" onclick="setBrand('Grob')" style="display:flex;align-items:center"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/grob.webp" alt="Grob" style="height:24px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'"></a>
<a href="javascript:void(0)" onclick="setBrand('Canzy')" style="display:flex;align-items:center"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/canzy.png" alt="Canzy" style="height:26px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'"></a>
<a href="javascript:void(0)" onclick="setBrand('Demax')" style="display:flex;align-items:center"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/demax.png" alt="Demax" style="height:22px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'"></a>
<a href="javascript:void(0)" onclick="setBrand('Hafele')" style="display:flex;align-items:center"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/hafele.png" alt="Hafele" style="height:22px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'"></a>
<a href="javascript:void(0)" onclick="setBrand('Garis')" style="display:flex;align-items:center"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/garis.png" alt="Garis" style="height:24px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'"></a>
<a href="javascript:void(0)" onclick="setBrand('Boss')" style="display:flex;align-items:center"><span style="font-size:.72rem;color:#333;font-weight:700;background:#f0f0f0;padding:3px 8px;border-radius:4px;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'">BOSS</span></a>
<a href="javascript:void(0)" onclick="setBrand('_dmx')" style="display:flex;align-items:center;gap:6px">
<img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/partners/dmx.png" alt="Điện Máy Xanh" style="height:24px;object-fit:contain;opacity:.75;transition:.3s" onmouseover="this.style.opacity='1'" onmouseout="this.style.opacity='.75'">
<span style="font-size:.56rem;color:#e53935;font-weight:700;background:#fff3f3;padding:2px 6px;border-radius:4px;white-space:nowrap">Cam kết giá rẻ hơn ĐMX</span>
</a>
</div>
</div>

<div class="container">
<!-- LIST VIEW -->
<div id="page-products" class="page-section active"><div id="listView">
<div class="main">
<aside class="sidebar" id="sidebar">
<div class="sb-card"><h3><i class="fas fa-building"></i> Thương Hiệu</h3><div class="pr" id="br"></div></div>
<div class="sb-card"><h3><i class="fas fa-layer-group"></i> Danh Mục</h3><ul class="cat-list" id="cl"></ul></div>
<div class="sb-card"><h3><i class="fas fa-tag"></i> Khoảng Giá</h3><div class="pr" id="pr"></div></div>
</aside>
<main class="content">
<div class="toolbar">
<span class="result-count" id="rc"></span>
<div style="display:flex;gap:7px;align-items:center">
<select class="sort-select" id="ss" onchange="doSort()"><option value="default">Mặc định</option><option value="pa">Giá: Thấp → Cao</option><option value="pd">Giá: Cao → Thấp</option><option value="na">Tên: A → Z</option></select>
<div class="view-btns"><button class="view-btn active" id="gb" onclick="setV('g')"><i class="fas fa-th-large"></i></button><button class="view-btn" id="lb" onclick="setV('l')"><i class="fas fa-list"></i></button></div>
</div>
</div>
<div class="pg" id="grid"></div>
<div class="pagination" id="pag"></div>
<div id="catSearchResults"></div>
</main>
</div>
</div>

<div id="detailView"></div>
</div><!-- /page-products -->

<!-- CATALOGUE PAGE -->
<div class="page-section" id="page-catalogue">
<div class="section-header" style="text-align:center;margin-bottom:10px">
<h2 style="font-size:1.8rem;font-weight:800;color:var(--d)"><i class="fas fa-book-open" style="color:var(--a);margin-right:10px"></i>Catalogue <span style="color:var(--a)">Sản phẩm</span></h2>
<p style="color:var(--g);font-size:.9rem;max-width:550px;margin:10px auto 0">10 bộ catalogue — tìm kiếm theo văn bản trong ảnh</p>
<div style="max-width:480px;margin:16px auto 0;position:relative">
<i class="fas fa-search" style="position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--g);font-size:.85rem"></i>
<input type="text" id="catSearch" placeholder="Tìm trong catalogue... (tên SP, mã SP, thông số...)" oninput="searchCatalogue()" style="width:100%;padding:10px 14px 10px 40px;border:2px solid var(--gl);border-radius:12px;font-size:.85rem;font-family:inherit;outline:none">
<span id="catSearchCount" style="position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:.68rem;color:var(--g);background:var(--l);padding:2px 7px;border-radius:6px"></span>
</div>
</div>
<!-- Tab selector -->
<div id="catTabs"></div>
<!-- Catalogue content renders here -->
<div id="catContent"></div>
</div>

<!-- CONTACT PAGE -->
<div class="page-section" id="page-contact">
<div class="section-header" style="text-align:center;margin-bottom:10px">
<h2 style="font-size:1.8rem;font-weight:800;color:var(--d)"><i class="fas fa-envelope" style="color:var(--a);margin-right:10px"></i>Liên Hệ <span style="color:var(--a)">Malloca</span></h2>
<p style="color:var(--g);font-size:.9rem;max-width:500px;margin:10px auto 0">Liên hệ trực tiếp hoặc gửi tin nhắn — chúng tôi sẵn sàng hỗ trợ bạn</p>
</div>
<div class="contact-grid">
<div class="contact-card">
<h3><i class="fas fa-building"></i> Thông Tin Liên Hệ</h3>
<ul class="contact-info">
<li><i class="fas fa-map-marker-alt"></i><div><strong>Showroom Hà Nội</strong><br>10 Chương Dương Độ, Hoàn Kiếm, Hà Nội</div></li>
<li><i class="fas fa-comment-dots"></i><div><strong>Zalo tư vấn</strong><br><a href="https://zalo.me/0981873395" target="_blank" style="color:var(--p);font-weight:700">0981 873 395</a> · <a href="https://zalo.me/0918258385" target="_blank" style="color:var(--p);font-weight:700">0918 258 385</a></div></li>
<li><i class="fas fa-qrcode"></i><div><strong>QR Kết bạn Zalo</strong><br><img src="https://api.qrserver.com/v1/create-qr-code/?size=150x150&data=https://zalo.me/0981873395" alt="QR Zalo 0981873395" style="width:120px;border-radius:8px;margin-top:6px;border:2px solid var(--gl)"><br><span style="font-size:.72rem;color:var(--g)">Quét mã để kết bạn Zalo</span></div></li>
<li><i class="fas fa-envelope"></i><div><strong>Email</strong><br><a href="mailto:info@malloca.com" style="color:var(--p)">info@malloca.com</a></div></li>
<li><i class="fas fa-clock"></i><div><strong>Giờ làm việc</strong><br>Thứ 2 - Thứ 7: 8:00 - 17:30<br>Chủ nhật: 9:00 - 12:00</div></li>
<li><i class="fas fa-robot"></i><div><strong>Tư Vấn AI</strong><br><a href="javascript:void(0)" onclick="toggleChat()" style="color:var(--p);font-weight:700">Chat ngay →</a></div></li>
</ul>
<div style="display:flex;gap:8px;margin-top:16px">
<a href="https://zalo.me/0981873395" target="_blank" style="padding:10px 16px;background:#0068FF;color:#fff;border-radius:10px;font-size:.8rem;font-weight:600;display:flex;align-items:center;gap:6px"><i class="fas fa-comment-dots"></i> Zalo 1</a>
<a href="https://zalo.me/0918258385" target="_blank" style="padding:10px 16px;background:#0068FF;color:#fff;border-radius:10px;font-size:.8rem;font-weight:600;display:flex;align-items:center;gap:6px"><i class="fas fa-comment-dots"></i> Zalo 2</a>
</div>
</div>
<div class="contact-card">
<h3><i class="fas fa-paper-plane"></i> Gửi Tin Nhắn</h3>
<form onsubmit="submitContact(event)">
<div class="form-group"><label>Họ tên *</label><input class="form-input" id="ctName" placeholder="Nhập họ tên" required></div>
<div class="form-group"><label>Email *</label><input class="form-input" id="ctEmail" type="email" placeholder="email@example.com" required></div>
<div class="form-group"><label>Số điện thoại</label><input class="form-input" id="ctPhone" placeholder="Nhập SĐT"></div>
<div class="form-group"><label>Nội dung *</label><textarea class="form-input" id="ctMsg" placeholder="Nhập nội dung liên hệ..." required></textarea></div>
<button type="submit" class="form-btn"><i class="fas fa-paper-plane"></i> Gửi Tin Nhắn</button>
</form>
</div>
</div>
</div>

</div>

<!-- MOBILE SIDEBAR -->
<div class="msb" id="msb">
<div class="msb-h"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_200.png" alt="V.AI STUDIO" style="height:36px;object-fit:contain"><button class="msb-close" onclick="this.closest('.msb').classList.remove('open')"><i class="fas fa-times"></i></button></div>
<div style="display:flex;flex-direction:column;gap:4px;margin-bottom:16px;padding-bottom:16px;border-bottom:2px solid var(--gl)">
<div style="padding:12px;border-radius:10px;font-weight:600;cursor:pointer;font-size:.9rem" onclick="closeMsb();showPage('products')"><i class="fas fa-th-large" style="margin-right:8px;color:var(--a)"></i> Sản Phẩm</div>
<div style="padding:12px;border-radius:10px;font-weight:600;cursor:pointer;font-size:.9rem" onclick="closeMsb();showPage('catalogue')"><i class="fas fa-book-open" style="margin-right:8px;color:var(--a)"></i> Catalogue</div>
<div style="padding:12px;border-radius:10px;font-weight:600;cursor:pointer;font-size:.9rem" onclick="closeMsb();showPage('contact')"><i class="fas fa-envelope" style="margin-right:8px;color:var(--a)"></i> Liên Hệ</div>
<div style="padding:12px;border-radius:10px;font-weight:600;cursor:pointer;font-size:.9rem" onclick="closeMsb();openCart()"><i class="fas fa-shopping-cart" style="margin-right:8px;color:var(--a)"></i> Giỏ Hàng</div>
</div>
<div class="sb-card"><h3><i class="fas fa-building"></i> Thương Hiệu</h3><div class="pr" id="brm"></div></div>
<div class="sb-card"><h3><i class="fas fa-layer-group"></i> Danh Mục</h3><ul class="cat-list" id="clm"></ul></div>
<div class="sb-card"><h3><i class="fas fa-tag"></i> Khoảng Giá</h3><div class="pr" id="prm"></div></div>
</div>


<!-- CART DRAWER -->
<div class="cart-overlay" id="cartOverlay" onclick="closeCart()"></div>
<div class="cart-drawer" id="cartDrawer">
<div class="cart-header"><h3><i class="fas fa-shopping-cart"></i> Giỏ Hàng</h3><button class="cart-close" onclick="closeCart()"><i class="fas fa-times"></i></button></div>
<div class="cart-items" id="cartItems"></div>
<div class="cart-footer" id="cartFooter" style="display:none">
<div class="cart-total"><span>Tổng cộng:</span><span id="cartTotal"></span></div>
<div class="cart-footer-btns">
<button class="cart-checkout-btn" onclick="openCheckout()"><i class="fas fa-qrcode"></i> Thanh toán</button>
<button class="cart-checkout-btn" onclick="openQuotation()" style="background:var(--p)"><i class="fas fa-file-invoice"></i> Báo giá</button>
</div>
</div>
</div>

<!-- CHECKOUT MODAL -->
<div class="checkout-overlay" id="checkoutOverlay" onclick="if(event.target===this)closeCheckout()">
<div class="checkout-modal">
<button class="checkout-close" onclick="closeCheckout()"><i class="fas fa-times"></i></button>
<div id="checkoutContent"></div>
</div>
</div>

<!-- QUOTATION MODAL -->
<div class="quote-overlay" id="quoteOverlay" onclick="if(event.target===this)closeQuotation()">
<div class="quote-modal">
<button class="quote-close" onclick="closeQuotation()"><i class="fas fa-times"></i></button>
<div class="quote-head">
<h2><i class="fas fa-file-invoice" style="margin-right:8px"></i>Lập Báo Giá</h2>
<p>Điền thông tin khách hàng và chiết khấu để xuất báo giá</p>
</div>
<div class="quote-body">

<div class="quote-section">
<h3><i class="fas fa-user"></i> Thông tin khách hàng</h3>
<div class="quote-grid">
<div class="quote-field"><label>Họ tên khách hàng</label><input id="qcName" placeholder="Nhập họ tên"></div>
<div class="quote-field"><label>Số điện thoại</label><input id="qcPhone" placeholder="Nhập SĐT"></div>
<div class="quote-field"><label>Email</label><input id="qcEmail" placeholder="Nhập email"></div>
<div class="quote-field"><label>Địa chỉ</label><input id="qcAddr" placeholder="Nhập địa chỉ"></div>
<div class="quote-field"><label>Mã đơn hàng</label><input id="qcCompany" placeholder="Tự động tạo" readonly style="background:var(--l);font-weight:700;color:var(--p)"></div>
<div class="quote-field"><label>Ngày báo giá</label><input id="qcDate" type="date"></div>
</div>
<div style="margin-top:12px;padding:12px 14px;background:var(--l);border-radius:10px">
<div style="display:flex;align-items:center;gap:10px;margin-bottom:8px">
<i class="fas fa-lock" id="qcLockIcon" style="color:var(--g);font-size:.85rem"></i>
<input id="qcAccessCode" type="password" placeholder="Nhập mã truy cập..." style="width:160px;padding:7px 10px;border:1.5px solid var(--gl);border-radius:8px;font-size:.8rem;font-family:inherit;outline:none;background:#fff" oninput="checkQuoteAccess()">
<span id="qcAccessStatus" style="font-size:.72rem;font-weight:600;color:var(--g)">🔒</span>
</div>
<div id="aiPromptBox" style="display:none">
<div style="display:flex;gap:8px">
<textarea id="qcAiPrompt" placeholder="VD: Malloca ck 35%, giao hàng 200k, lắp đặt 500k, cọc 5tr, ghi chú: giao thứ 7" style="flex:1;padding:8px 10px;border:1.5px solid var(--p);border-radius:8px;font-size:.82rem;font-family:inherit;outline:none;resize:none;height:48px;background:#fff"></textarea>
<button onclick="applyAiDiscount()" style="padding:8px 16px;background:var(--p);color:#fff;border:none;border-radius:8px;font-size:.8rem;font-weight:700;cursor:pointer;font-family:inherit;white-space:nowrap;display:flex;align-items:center;gap:6px" id="aiDiscBtn"><i class="fas fa-robot"></i> Áp dụng</button>
</div>
<div id="aiDiscStatus" style="font-size:.72rem;color:var(--g);margin-top:4px"></div>
</div>
</div>
</div>

<div class="quote-section">
<h3><i class="fas fa-list-check"></i> Chi tiết sản phẩm</h3>
<div style="overflow-x:auto">
<table class="quote-table" id="quoteTable">
<thead><tr>
<th>STT</th><th>Hình ảnh</th><th style="text-align:left">Tên sản phẩm</th><th>Mã SP</th><th>Thông tin</th><th>SL</th><th>Đơn giá</th><th>Đơn giá CK</th><th>Thành tiền</th><th>Ghi chú</th>
</tr></thead>
<tbody id="quoteTableBody"></tbody>
<tfoot><tr class="quote-total-row"><td colspan="8" style="text-align:right;padding-right:12px">TỔNG CỘNG:</td><td class="qt-price" id="quoteTotalCell"></td><td></td></tr></tfoot>
</table>
</div>
</div>

<div class="quote-actions">
<button class="quote-btn" onclick="shareQuoteImage()" style="background:#25D366"><i class="fas fa-share-alt"></i> Chia sẻ ảnh</button>  
<button class="quote-btn" onclick="shareQuoteLink()" style="background:#0068FF"><i class="fas fa-share-alt"></i> Chia sẻ báo giá</button>  
<button class="quote-btn quote-btn-excel" onclick="exportExcel()"><i class="fas fa-file-excel"></i> Xuất Excel</button>
<button class="quote-btn quote-btn-pdf" onclick="exportPDF()"><i class="fas fa-file-pdf"></i> Xuất PDF</button>
<label class="quote-btn" style="background:#fff;color:#111;border:1px solid #111"><input id="vai-bw-export" type="checkbox" style="width:16px;height:16px;margin-right:6px"> Trắng đen</label>
<button class="quote-btn quote-btn-print" onclick="printQuotation()"><i class="fas fa-print"></i> In báo giá</button>
</div>
</div>
</div>
</div>

<footer class="footer"><div class="container">
<div class="footer-grid">
<div class="footer-brand"><img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_200.png" alt="V.AI STUDIO" style="height:50px;object-fit:contain;margin-bottom:8px;filter:brightness(10)"><div class="logo-name" style="color:#fff;font-size:1.1rem">V.AI <span style="color:var(--a)">STUDIO</span></div><p style="font-style:italic;opacity:.85;margin-bottom:4px">❝ Niềm tin khách hàng là tài sản của chúng tôi ❞</p><p>Thiết bị nhà bếp & khóa thông minh — Malloca, Eurogold, Grob, Canzy & Demax.</p>
<div class="social-links"><a href="https://zalo.me/0981873395" target="_blank" title="Zalo"><i class="fas fa-comment-dots"></i></a><a href="https://zalo.me/0918258385" target="_blank" title="Zalo 2"><i class="fas fa-comments"></i></a></div></div>
<div><h4>Thiết Bị Nhà Bếp</h4><ul class="footer-links"><li><a href="javascript:void(0)" onclick="setCat('may-hut-khoi-khu-mui')">Máy hút khói khử mùi</a></li><li><a href="javascript:void(0)" onclick="setCat('bep-dien-tu-bep-gas')">Bếp điện từ, bếp gas</a></li><li><a href="javascript:void(0)" onclick="setCat('lo-nuong')">Lò nướng, lò hấp</a></li><li><a href="javascript:void(0)" onclick="setCat('chau-rua-chen')">Chậu rửa chén</a></li><li><a href="javascript:void(0)" onclick="setCat('voi-rua-chen')">Vòi rửa chén</a></li></ul></div>
<div><h4>Thêm</h4><ul class="footer-links"><li><a href="javascript:void(0)" onclick="setCat('tu-lanh-tu-ruou')">Tủ lạnh, tủ rượu</a></li><li><a href="javascript:void(0)" onclick="setCat('may-rua-chen-may-say-chen')">Máy rửa chén</a></li><li><a href="javascript:void(0)" onclick="setCat('thiet-bi-gia-dung-nho')">Gia dụng nhỏ</a></li><li><a href="javascript:void(0)" onclick="showPage('catalogue')">Catalogue</a></li><li><a href="javascript:void(0)" onclick="toggleChat()">🤖 Tư Vấn AI</a></li></ul></div>
<div><h4>Hỗ Trợ</h4><ul class="footer-links"><li><a href="javascript:void(0)" onclick="toggleChat()">Tư vấn sản phẩm</a></li><li><a href="javascript:void(0)" onclick="showPage('contact')">Liên hệ</a></li><li><a href="https://zalo.me/0981873395" target="_blank">Zalo: 0981 873 395</a></li><li><a href="javascript:void(0)" onclick="showPage('catalogue')">Xem catalogue</a></li><li><a href="javascript:void(0)" onclick="goHome()">Trang chủ</a></li></ul></div>
</div>
<div class="footer-bottom"><p>&copy; 2026 V.AI STUDIO &bull; Thiết bị nhà bếp & khóa thông minh — Malloca, Eurogold, Grob, Canzy, Demax, Hafele, Garis & Điện Máy Xanh</p><p style="margin-top:6px;font-size:.65rem;color:rgba(255,255,255,.45)">Tất cả sản phẩm đã được cập nhật giá mới nhất nhanh nhất 2026 — Có sự hỗ trợ từ V.AI STUDIO</p></div>
</div></footer>

<script>
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function nVN(s){return s.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/đ/g,'d').replace(/Đ/g,'d')}

// Synonym map (normalized, no diacritics)
const SYN={'ke':['gia'],'gia':['ke'],'bat':['chen'],'chen':['bat'],'xoong':['noi'],'noi':['xoong'],'dao':['thot'],'thot':['dao'],'ray':['truot'],'truot':['ray'],'khoa':['lock'],'lock':['khoa'],'bon':['chau'],'chau':['bon'],'ro':['gia','ke']};

function smartSearch(query,text){
// Strip . - space from query for SKU matching
let cleanQ=query.replace(/[.\- ]/g,'');
let cleanT=text.replace(/[.\- ]/g,'');
// 1. Exact substring on cleaned versions
if(cleanT.includes(cleanQ))return true;
if(text.includes(query))return true;
// 2. Split into words, ALL must match (any order)
let words=query.split(/\s+/).filter(w=>w);
if(!words.length)return true;
let matched=0;
for(let w of words){
let cw=w.replace(/[.\-]/g,'');
if(text.includes(w)||cleanT.includes(cw)){matched++;continue;}
// Try synonym
let hit=false;
if(SYN[w]){for(let s of SYN[w]){if(text.includes(s)){hit=true;break;}}}
if(hit){matched++;continue;}
}
return matched===words.length;
}
function buildSearchIndex(p){
let parts=[p.name,p.sku,p.model,p.brand,p.price];
// Add cleaned SKU/model (no . - space) for search
if(p.sku)parts.push(p.sku.replace(/[.\- ]/g,''));
if(p.model)parts.push(p.model.replace(/[.\- ]/g,''));
if(p.feats&&p.feats.length)parts.push(p.feats.join(' '));
if(p.specs){Object.entries(p.specs).forEach(([k,v])=>{parts.push(k);parts.push(String(v))})}
// AI semantic keywords based on product name
let n=p.name.toLowerCase();
if(n.includes('giá bát')||n.includes('kệ bát'))parts.push('ke bat gia bat ro bat dia chen');
if(n.includes('gia vị')||n.includes('chai lọ'))parts.push('ke gia vi chai lo');
if(n.includes('xoong')||n.includes('nồi'))parts.push('xoong noi chao');
if(n.includes('dao thớt'))parts.push('ke dao thot');
if(n.includes('tẩy rửa'))parts.push('ke tay rua gia chai lo nuoc rua');
if(n.includes('nâng hạ'))parts.push('nang ha len xuong');
if(n.includes('cảm ứng'))parts.push('cam ung dien thong minh');
if(n.includes('mâm xoay'))parts.push('mam xoay goc lien hoan');
if(n.includes('liên hoàn'))parts.push('lien hoan goc mam xoay');
if(n.includes('tủ kho')||n.includes('đồ khô'))parts.push('tu kho ke do kho');
if(n.includes('khay chia'))parts.push('khay chia thia nia muong dia ngan keo');
if(n.includes('thùng gạo'))parts.push('thung gao hop dung gao');
if(n.includes('thùng rác'))parts.push('thung rac');
if(n.includes('hút mùi'))parts.push('hut mui hut khoi khu mui');
if(n.includes('bếp từ'))parts.push('bep tu bep dien tu');
if(n.includes('bếp gas'))parts.push('bep gas');
if(n.includes('khóa'))parts.push('khoa cua thong minh van tay face id');
if(n.includes('chậu rửa'))parts.push('chau rua bon rua');
if(n.includes('vòi rửa'))parts.push('voi rua nong lanh');
if(n.includes('lò nướng'))parts.push('lo nuong');
if(n.includes('lò vi'))parts.push('lo vi song');
if(n.includes('máy rửa'))parts.push('may rua bat chen');
if(n.includes('trang sức'))parts.push('trang suc ngan keo');
if(n.includes('giày'))parts.push('giay ke de giay');
if(n.includes('gương'))parts.push('guong xoay');
if(n.includes('ray')||n.includes('bản lề'))parts.push('ray truot ban le giam chan');
if(n.includes('lò nướng'))parts.push('lo nuong am tu nong');
if(n.includes('lò vi'))parts.push('lo vi song am tu');
if(n.includes('tủ áo')||n.includes('quần áo'))parts.push('tu ao phu kien tu quan ao');
if(n.includes('trang sức'))parts.push('trang suc ngan keo de do');
if(n.includes('giày'))parts.push('giay ke de giay tu ao');
if(n.includes('gương'))parts.push('guong xoay tu ao thong minh');
if(n.includes('máy rửa'))parts.push('may rua bat chen doc lap am tu');
return nVN(parts.join(' '));
}

// init() is defined at the end of the script with routing logic

function buildCats(){
let cats={};
let subs={};
D.forEach(p=>{
if(!cats[p.catSlug])cats[p.catSlug]={n:p.cat,i:p.catIcon,c:0,hasSub:false};
cats[p.catSlug].c++;
if(p.subCatSlug){
cats[p.catSlug].hasSub=true;
if(!subs[p.subCatSlug])subs[p.subCatSlug]={n:p.subCat,parent:p.catSlug,c:0};
subs[p.subCatSlug].c++;
}
});
let h=`<li class="cat-item active" data-s="all" onclick="setCat('all')"><i class="fas fa-border-all"></i>Tất cả<span class="cat-count">${D.length}</span></li>`;
Object.entries(cats).forEach(([s,c])=>{
h+=`<li class="cat-item" data-s="${s}" onclick="setCat('${s}')"><i class="fas ${c.i}"></i>${c.n}<span class="cat-count">${c.c}</span></li>`;
if(c.hasSub){
let subList=Object.entries(subs).filter(([sk,sv])=>sv.parent===s).sort((a,b)=>b[1].c-a[1].c);
subList.forEach(([sk,sv])=>{
h+=`<li class="cat-item cat-sub" data-s="${sk}" onclick="setCat('${sk}')"><span style="margin-left:12px;font-size:.7rem;opacity:.5"></span>${sv.n}<span class="cat-count">${sv.c}</span></li>`;
});
}
});
document.getElementById('cl').innerHTML=h;document.getElementById('clm').innerHTML=h;
}

function buildPrices(){
let h='';PRICES.forEach((p,i)=>{h+=`<div class="pr-item${i===0?' active':''}" data-i="${i}" onclick="setPrice(${p.min},${p.max},${i})"><span class="pr-dot"></span>${p.l}</div>`});
document.getElementById('pr').innerHTML=h;document.getElementById('prm').innerHTML=h;
}
function buildBrands(){
let brands={};D.forEach(p=>{brands[p.brand]=(brands[p.brand]||0)+1});
let h=`<div class="pr-item active" data-b="all" onclick="setBrand('all')"><span class="pr-dot"></span>Tất cả (${D.length})</div>`;
Object.entries(brands).sort((a,b)=>b[1]-a[1]).forEach(([b,c])=>{h+=`<div class="pr-item" data-b="${b}" onclick="setBrand('${b}')"><span class="pr-dot"></span>${b} (${c})</div>`});
document.getElementById('br').innerHTML=h;document.getElementById('brm').innerHTML=h;
document.getElementById('statTotal').textContent=D.length;
{let _c={};D.forEach(p=>{_c[p.catSlug]=1});document.getElementById('statCats').textContent=Object.keys(_c).length;}
{let _partners=['Malloca','Eurogold','Grob','Canzy','Demax','Hafele','Garis','Điện Máy Xanh'];let _found={};D.forEach(p=>{let b=p.brand||'';_partners.forEach(pp=>{if(b===pp||b.toLowerCase().includes(pp.toLowerCase()))_found[pp]=1})});let bEl=document.getElementById('statBrands');if(bEl)bEl.textContent=Object.keys(_found).length;}
}



function getF(){
let r=D;
if(S.brand==='_dmx')r=r.filter(p=>p.slug&&p.slug.startsWith('dmx-'));
else if(S.brand!=='all')r=r.filter(p=>p.brand===S.brand);
if(S.cat!=='all')r=r.filter(p=>p.catSlug===S.cat||p.subCatSlug===S.cat);
if(S.q){let q=nVN(S.q);r=r.filter(p=>smartSearch(q,p._idx))}
if(S.pmin>0||S.pmax<1e15)r=r.filter(p=>p.priceNum>=S.pmin&&p.priceNum<=S.pmax);
if(S.sort==='pa')r.sort((a,b)=>a.priceNum-b.priceNum);
else if(S.sort==='pd')r.sort((a,b)=>b.priceNum-a.priceNum);
else if(S.sort==='na')r.sort((a,b)=>a.name.localeCompare(b.name,'vi'));
return r;
}

function render(){
let f=getF(),tp=Math.ceil(f.length/PP);if(S.pg>tp)S.pg=tp||1;
let s=(S.pg-1)*PP,items=f.slice(s,s+PP);
document.getElementById('rc').innerHTML=`<strong>${f.length}</strong> sản phẩm`;
document.getElementById('sc').textContent=S.q?f.length+' kết quả':'';
let g=document.getElementById('grid');
g.className='pg'+(S.view==='l'?' lv':'');
if(!items.length){g.innerHTML=`<div class="empty" style="grid-column:1/-1"><i class="fas fa-search"></i><h3>Không tìm thấy</h3><p>Thử thay đổi bộ lọc hoặc từ khóa</p><button class="reset-btn" onclick="resetAll()">Xóa bộ lọc</button></div>`;
}else{
g.innerHTML=items.map((p,i)=>{let idx=D.indexOf(p);let brandColor=p.brand==='Eurogold'?'#c8102e':p.brand==='Grob'?'#2e7d32':'var(--p)';let href='/san-pham/'+p.slug+'/index.html';return`<a class="pc fade" href="${href}" onclick="event.preventDefault();showDetail(${idx})" style="transition-delay:${Math.min(i*25,400)}ms;display:block"><div class="pi"><img src="${p.image}" alt="${p.name}" loading="lazy" onerror="if(!this.dataset.retry){this.dataset.retry=1;this.referrerPolicy='no-referrer';this.src=this.src}else{this.style.display='none'}"><span class="pi-badge"><i class="fas ${p.catIcon}"></i> ${p.cat}</span><span style="position:absolute;top:8px;right:8px;background:${brandColor};color:#fff;padding:3px 8px;border-radius:5px;font-size:.58rem;font-weight:700">${p.brand}</span></div><div class="pb"><div style="font-size:.65rem;font-weight:700;color:${brandColor};letter-spacing:.5px;margin-bottom:4px">${p.model||p.brand}</div><div class="pn">${p.name}</div><div class="pf"><span class="pp">${p.price||'Liên hệ'}</span><i class="fas fa-chevron-right"></i></div></div></a>`}).join('');
}
requestAnimationFrame(()=>document.querySelectorAll('.fade').forEach(e=>e.classList.add('vis')));
renderPag(tp);
}

function renderPag(tp){
if(tp<=1){document.getElementById('pag').innerHTML='';return}
let h=`<button class="pgb" onclick="goPg(${S.pg-1})"${S.pg===1?' disabled':''}><i class="fas fa-chevron-left"></i></button>`;
let pages=[];
if(tp<=7){for(let i=1;i<=tp;i++)pages.push(i)}
else{pages.push(1);if(S.pg>3)pages.push('.');for(let i=Math.max(2,S.pg-1);i<=Math.min(tp-1,S.pg+1);i++)pages.push(i);if(S.pg<tp-2)pages.push('.');pages.push(tp)}
pages.forEach(p=>{if(p==='.')h+=`<span class="pg-dots">...</span>`;else h+=`<button class="pgb${p===S.pg?' active':''}" onclick="goPg(${p})">${p}</button>`});
h+=`<button class="pgb" onclick="goPg(${S.pg+1})"${S.pg===tp?' disabled':''}><i class="fas fa-chevron-right"></i></button>`;
document.getElementById('pag').innerHTML=h;
}

// ===== DETAIL VIEW =====
let _skipHistory=false;
function showDetail(idx){
let p=D[idx];
// Update URL with SEO-friendly slug using History API
if(!_skipHistory){
let slugUrl='/san-pham/'+p.slug+'/index.html'; history.pushState({type:'product',idx:idx},'',slugUrl);
}
_skipHistory=false;
document.title=p.name+' | '+p.brand+' - V.AI STUDIO';
// Update OG meta for sharing
var ogImg=p.image||(p.images&&p.images[0])||'';
if(ogImg.startsWith('//'))ogImg='https:'+ogImg;
var pUrl=location.origin+'/san-pham/'+p.slug+'/index.html';
var el;
if(el=document.getElementById('ogTitle'))el.content=p.name+' | V.AI STUDIO';
if(el=document.getElementById('ogDesc'))el.content=(p.summary||p.desc||p.name).substring(0,200);
if(el=document.getElementById('ogImage'))el.content=ogImg;
if(el=document.getElementById('ogUrl'))el.content=pUrl;
if(el=document.getElementById('twTitle'))el.content=p.name+' | V.AI STUDIO';
if(el=document.getElementById('twDesc'))el.content=(p.summary||p.desc||p.name).substring(0,200);
if(el=document.getElementById('twImage'))el.content=ogImg;
document.getElementById('listView').style.display='none';
document.querySelector('.hero').style.display='none';
let dv=document.getElementById('detailView');
dv.classList.add('show');

// Build gallery carousel
let allImgs=p.images.length?p.images:[p.image];
let slides=allImgs.map((img,i)=>`<div class="gallery-slide"><img src="${img}" alt="${p.name}" loading="${i===0?'eager':'lazy'}"></div>`).join('');
let dots=allImgs.length>1?`<div class="gallery-dots">${allImgs.map((_,i)=>`<div class="gallery-dot${i===0?' active':''}" onclick="goSlide(${i})"></div>`).join('')}</div>`:'';
let thumbs=allImgs.length>1?allImgs.map((img,i)=>`<div class="gallery-thumb${i===0?' active':''}" onclick="goSlide(${i})"><img src="${img}" alt="" loading="lazy"></div>`).join(''):'';

// Specs table
let specsHtml='';
if(Object.keys(p.specs).length){
specsHtml='<table class="specs-table">'+Object.entries(p.specs).map(([k,v])=>`<tr><td>${k}</td><td>${v}</td></tr>`).join('')+'</table>';
}else{specsHtml='<p style="color:var(--g);font-size:.88rem">Chưa có thông số kỹ thuật chi tiết.</p>'}

// Features
let featsHtml='';
if(p.feats.length){featsHtml='<ul class="feat-list">'+p.feats.map(f=>`<li class="feat-item"><i class="fas fa-check-circle"></i><span>${f}</span></li>`).join('')+'</ul>'}
else{featsHtml='<p style="color:var(--g);font-size:.88rem">Chưa có danh sách tính năng.</p>'}

// Description
let descHtml=p.desc?`<div class="desc-text">${p.desc.replace(/\n/g,'<br>')}</div>`:'<p style="color:var(--g);font-size:.88rem">Chưa có mô tả chi tiết.</p>';

// Video
let videoHtml=p.video?`<div class="video-wrap"><iframe src="${p.video}" allowfullscreen loading="lazy"></iframe></div>`:'<p style="color:var(--g);font-size:.88rem">Chưa có video.</p>';

// Tab count for conditional display
let tabs=[
{id:'specs',label:'Thông Số Kỹ Thuật',icon:'fa-list-check',content:specsHtml},
{id:'feats',label:'Tính Năng',icon:'fa-star',content:featsHtml},
{id:'desc',label:'Mô Tả Chi Tiết',icon:'fa-file-lines',content:descHtml},
];
if(p.video)tabs.push({id:'video',label:'Video',icon:'fa-play',content:videoHtml});

let tabHeaders=tabs.map((t,i)=>`<div class="dtab-h${i===0?' active':''}" onclick="switchTab('${t.id}',this)"><i class="fas ${t.icon}"></i> ${t.label}</div>`).join('');
let tabContents=tabs.map((t,i)=>`<div class="dtab-content${i===0?' active':''}" id="tab-${t.id}">${t.content}</div>`).join('');

// Related products (same category, max 4)
let related=D.filter(r=>r.catSlug===p.catSlug&&r!==p).slice(0,4);
let relatedHtml='';
if(related.length){
relatedHtml=`<div style="margin-top:30px"><h3 style="font-size:1.1rem;font-weight:700;margin-bottom:16px"><i class="fas fa-cubes" style="color:var(--a);margin-right:8px"></i>Sản phẩm liên quan</h3><div class="pg" style="grid-template-columns:repeat(auto-fill,minmax(200px,1fr))">`;
relatedHtml+=related.map(r=>{let ri=D.indexOf(r);return`<a class="pc" href="/san-pham/${r.slug}/index.html" onclick="event.preventDefault();showDetail(${ri});window.scrollTo({top:0,behavior:'smooth'})" style="display:block"><div class="pi" style="height:160px"><img src="${r.image}" alt="${r.name}" loading="lazy"></div><div class="pb"><div class="pn">${r.name}</div><div class="pp">${r.price||'Liên hệ'}</div></div></a>`}).join('');
relatedHtml+='</div></div>';
}

dv.innerHTML=`
<div style="padding:28px 0">
<div class="detail-back" onclick="goBack()"><i class="fas fa-arrow-left"></i> Quay lại danh sách</div>
<div class="detail-grid">
<div class="gallery">
<div class="gallery-carousel" id="galleryCarousel">
<div class="gallery-track" id="galleryTrack">${slides}</div>
${allImgs.length>1?`<button class="gallery-nav gn-prev" onclick="goSlide(_gSlide-1)"><i class="fas fa-chevron-left"></i></button><button class="gallery-nav gn-next" onclick="goSlide(_gSlide+1)"><i class="fas fa-chevron-right"></i></button>`:''}
</div>
${dots}
${thumbs?`<div class="gallery-thumbs">${thumbs}</div>`:''}
</div>
<div class="detail-info">
${p.sku?`<div class="detail-sku">SKU: ${p.sku} &bull; Model: ${p.model}</div>`:''}
<div class="detail-cat"><i class="fas ${p.catIcon}"></i> ${p.cat}</div>
<h1 class="detail-name">${p.name}</h1>
<div style="font-size:.95rem;font-weight:800;color:${p.brand==='Eurogold'?'#c8102e':p.brand==='Grob'?'#2e7d32':'var(--a)'};letter-spacing:1px;margin-bottom:12px">${p.model?p.model+' | ':''} ${p.brand}</div>
<div class="detail-price">${p.price||'Liên hệ'}</div>
${p.summary?`<div class="detail-summary">${p.summary}</div>`:''}
<div class="detail-badges">
<div class="detail-badge"><i class="fas fa-check-circle"></i> Chính hãng ${p.brand}</div>
<div class="detail-badge"><i class="fas fa-shield-halved"></i> Bảo hành điện tử</div>
<div class="detail-badge"><i class="fas fa-truck-fast"></i> Miễn phí giao hàng TPHCM</div>
</div>
<div style="display:flex;gap:10px;flex-wrap:wrap">
<button class="add-cart-btn" onclick="event.stopPropagation();addToCart(${idx})"><i class="fas fa-cart-plus"></i> Thêm vào giỏ</button>
<button class="detail-btn detail-btn-outline" onclick="event.stopPropagation();toggleChat()"><i class="fas fa-robot"></i> Tư Vấn AI</button>
<button class="detail-btn detail-btn-outline" onclick="event.stopPropagation();shareProduct('${p.slug}','${p.name.replace(/'/g,"\\'")}')" title="Chia sẻ sản phẩm"><i class="fas fa-share-alt"></i> Chia sẻ</button>
</div>
</div>
</div>
<div class="dtabs">
<div class="dtab-headers">${tabHeaders}</div>
<div class="dtab-body">${tabContents}</div>
</div>
${relatedHtml}
</div>`;
window.scrollTo({top:0,behavior:'smooth'});
}

function goBack(){
document.getElementById('detailView').classList.remove('show');
document.getElementById('detailView').innerHTML='';
document.getElementById('listView').style.display='';
document.querySelector('.hero').style.display='';
document.title='V.AI STUDIO | Niềm tin khách hàng là tài sản của chúng tôi';
// Reset OG meta
var defImg='https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_600.png';
var el;
if(el=document.getElementById('ogTitle'))el.content='V.AI STUDIO | Niềm tin khách hàng là tài sản của chúng tôi';
if(el=document.getElementById('ogDesc'))el.content='8000+ sản phẩm thiết bị nhà bếp & điện máy chính hãng';
if(el=document.getElementById('ogImage'))el.content=defImg;
if(el=document.getElementById('ogUrl'))el.content=location.origin+'/';
if(el=document.getElementById('twTitle'))el.content='V.AI STUDIO';
if(el=document.getElementById('twDesc'))el.content='8000+ sản phẩm thiết bị nhà bếp & điện máy chính hãng';
if(el=document.getElementById('twImage'))el.content=defImg;
history.pushState({type:'list'},'','/');
}

function goHome(){
history.pushState({type:'list'},'','/');
goBack();resetAll();
}

let _gSlide=0,_gTotal=0,_touchStartX=0;
function goSlide(i){
let track=document.getElementById('galleryTrack');
if(!track)return;
_gTotal=track.children.length;
if(i<0)i=0;if(i>=_gTotal)i=_gTotal-1;
_gSlide=i;
track.style.transform='translateX(-'+(_gSlide*100)+'%)';
document.querySelectorAll('.gallery-dot').forEach((d,j)=>d.classList.toggle('active',j===_gSlide));
document.querySelectorAll('.gallery-thumb').forEach((t,j)=>{t.classList.toggle('active',j===_gSlide);if(j===_gSlide)t.scrollIntoView({behavior:'smooth',block:'nearest',inline:'center'})});
}
// Touch swipe support
document.addEventListener('touchstart',function(e){
let c=e.target.closest('.gallery-carousel');if(c)_touchStartX=e.touches[0].clientX;
},{passive:true});
document.addEventListener('touchend',function(e){
if(!_touchStartX)return;
let c=e.target.closest('.gallery-carousel');if(!c){_touchStartX=0;return}
let diff=_touchStartX-e.changedTouches[0].clientX;
if(Math.abs(diff)>40){diff>0?goSlide(_gSlide+1):goSlide(_gSlide-1)}
_touchStartX=0;
},{passive:true});

function switchTab(id,el){
document.querySelectorAll('.dtab-h').forEach(h=>h.classList.remove('active'));
document.querySelectorAll('.dtab-content').forEach(c=>c.classList.remove('active'));
el.classList.add('active');
document.getElementById('tab-'+id).classList.add('active');
}

// ===== ACTIONS =====
function setCat(s){S.cat=s;S.pg=1;updActive('.cat-item','data-s',s);goBackToList();updateHash();render();closeMsb()}
function setPrice(min,max,i){S.pmin=min;S.pmax=max;S.pg=1;document.querySelectorAll('.pr-item[data-i]').forEach((e,j)=>e.classList.toggle('active',j===i));goBackToList();updateHash();render();closeMsb()}
function setBrand(b){S.brand=b;S.pg=1;document.querySelectorAll('[data-b]').forEach(e=>e.classList.toggle('active',e.getAttribute('data-b')===b));goBackToList();updateHash();render();closeMsb()}
function goBackToList(){document.getElementById('listView').style.display='';document.getElementById('detailView').classList.remove('show');document.getElementById('detailView').innerHTML='';document.querySelector('.hero').style.display='';}
function doSearch(){S.q=document.getElementById('q').value.trim();S.pg=1;updateHash();render();renderMainCatSearch()}
function doSort(){S.sort=document.getElementById('ss').value;S.pg=1;updateHash();render()}
function setV(v){S.view=v;document.getElementById('gb').classList.toggle('active',v==='g');document.getElementById('lb').classList.toggle('active',v==='l');updateHash();render()}
function goPg(p){let f=getF(),tp=Math.ceil(f.length/PP);if(p<1||p>tp)return;S.pg=p;updateHash();render();document.querySelector('.toolbar').scrollIntoView({behavior:'smooth',block:'start'})}
function resetAll(){S={cat:'all',q:'',pmin:0,pmax:1e15,sort:'default',pg:1,view:S.view,brand:'all'};document.getElementById('q').value='';document.getElementById('ss').value='default';updActive('.cat-item','data-s','all');document.querySelectorAll('.pr-item[data-i]').forEach((e,i)=>e.classList.toggle('active',i===0));document.querySelectorAll('[data-b]').forEach(e=>e.classList.toggle('active',e.getAttribute('data-b')==='all'));history.replaceState({type:'list'},'','/');render();let csr=document.getElementById('catSearchResults');if(csr)csr.innerHTML='';}
function updActive(sel,attr,val){document.querySelectorAll(sel).forEach(e=>e.classList.toggle('active',e.getAttribute(attr)===val))}
function closeMsb(){document.getElementById('msb').classList.remove('open')}
document.addEventListener('keydown',e=>{if(e.key==='Escape')goBack();if(e.key==='/'&&document.activeElement.tagName!=='INPUT'){e.preventDefault();document.getElementById('q').focus()}});

// ===== CATALOGUE (all pages rendered as images, loaded from catalogues.json) =====
let CAT_LIST=[];
let catLoaded=false;
let activeCat=0;
const CAT_PER_PAGE=12;
let catPage=1;

function loadCatalogueData(){
return Promise.all([
fetch('catalogues.json').then(r=>r.json()),
fetch('catalogue_ocr.json').then(r=>r.json()).catch(()=>[])
]).then(([data,ocr])=>{
CAT_LIST=data;
window._catOcr=ocr;
initCatTabs();
loadCatalogue(0);
catLoaded=true;
});
}

function initCatTabs(){
let tabs=document.getElementById('catTabs');
if(!tabs||!CAT_LIST.length)return;
const icons={'bep':'fa-fire','may-hut':'fa-wind','lo':'fa-temperature-high','chau':'fa-sink','khac':'fa-box','gia':'fa-tags','master':'fa-layer-group','grob':'fa-cogs','canzy':'fa-kitchen-set','demax':'fa-lock'};
tabs.innerHTML=CAT_LIST.map((c,i)=>{
let slug=c.slug||'';
let icon='fa-book-open';
for(let k in icons){if(slug.includes(k)){icon=icons[k];break;}}
let pCount=c.pages?c.pages.length:0;
return `<div class="ctab${i===0?' active':''}" onclick="loadCatalogue(${i})"><i class="fas ${icon}"></i>${c.name||'Catalogue '+(i+1)}<span class="cnt">${pCount}</span></div>`;
}).join('');
}

function loadCatalogue(idx){
activeCat=idx;
let c=CAT_LIST[idx];
if(!c)return;
// Update active tab
let tabBtns=document.querySelectorAll('#catTabs .ctab');
tabBtns.forEach((b,i)=>b.classList.toggle('active',i===idx));
let content=document.getElementById('catContent');
if(!content)return;
let pages=c.pages||[];
let totalPages=pages.length;
let pageHtml=`<div style="text-align:center;margin-bottom:16px">
<div style="font-size:.85rem;color:var(--g)">${c.desc||c.name||''} — <strong>${totalPages}</strong> trang</div>
</div>`;
pageHtml+=`<div style="display:flex;flex-direction:column;gap:16px;align-items:center">`;
pageHtml+=pages.map((pg,i)=>{
// pg can be a URL string or an object with .file
let imgSrc=typeof pg==='string'?pg:(pg.file?'grob_img/'+pg.file:pg.image||pg.url||'');
let label='Trang '+(i+1);
return `<div style="width:100%;max-width:900px"><img src="${imgSrc}" alt="${label}" style="width:100%;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.1)" loading="lazy"><div style="text-align:center;font-size:.75rem;color:var(--g);margin-top:6px">${label}</div></div>`;
}).join('');
pageHtml+=`</div>`;
content.innerHTML=pageHtml;
window.scrollTo({top:0,behavior:'smooth'});
}

function searchCatalogue(){
let q=document.getElementById('catSearch').value.trim();
if(!q){loadCatalogue(activeCat);document.getElementById('catSearchCount').textContent='';return}
let nq=nVN(q);
let results=[];
CAT_LIST.forEach((c,ci)=>{
let ocrTexts=(window._catOcr&&window._catOcr[ci])?window._catOcr[ci].texts||[]:[];
(c.pages||[]).forEach((pg,pi)=>{
let ocrText=ocrTexts[pi]||'';
let text=nVN(ocrText+' '+(c.name||''));
if(smartSearch(nq,text)){
let imgSrc=typeof pg==='string'?pg:(pg.file?'grob_img/'+pg.file:'');
results.push({cat:c.name||'Catalogue',imgSrc:imgSrc,pageNum:pi+1});
}
});
});
document.getElementById('catSearchCount').textContent=results.length+' kết quả';
let content=document.getElementById('catContent');
if(!results.length){content.innerHTML='<div class="empty" style="padding:40px"><i class="fas fa-search"></i><h3>Không tìm thấy trong catalogue</h3></div>';return}
content.innerHTML=`<div style="display:flex;flex-direction:column;gap:16px;align-items:center">`+results.map(r=>`<div style="width:100%;max-width:900px"><div style="font-size:.8rem;color:var(--p);font-weight:700;margin-bottom:6px">${r.cat} — Trang ${r.pageNum}</div><img src="${r.imgSrc}" alt="Trang ${r.pageNum}" style="width:100%;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.1)" loading="lazy"></div>`).join('')+`</div>`;
}

function renderMainCatSearch(){
let q=document.getElementById('q').value.trim();
let csr=document.getElementById('catSearchResults');
if(!csr)return;
if(!q){csr.innerHTML='';return}
let nq=nVN(q);
let results=[];
CAT_LIST.forEach((c,ci)=>{
let ocrTexts=(window._catOcr&&window._catOcr[ci])?window._catOcr[ci].texts||[]:[];
(c.pages||[]).forEach((pg,pi)=>{
let ocrText=ocrTexts[pi]||'';
let text=nVN(ocrText+' '+(c.name||''));
if(smartSearch(nq,text)){
let imgSrc=typeof pg==='string'?pg:(pg.file?'grob_img/'+pg.file:'');
results.push({cat:c.name||'Catalogue',imgSrc:imgSrc,pageNum:pi+1});
}
});
});
if(!results.length){csr.innerHTML='';return}
let searchVal=document.getElementById('q').value.replace(/'/g,"\\'");
csr.innerHTML=`<div style="margin-top:24px;padding-top:24px;border-top:2px solid var(--gl)"><h3 style="font-size:1rem;font-weight:700;margin-bottom:12px"><i class="fas fa-book-open" style="color:var(--a);margin-right:8px"></i>Kết quả trong Catalogue (${results.length})</h3><div style="display:flex;flex-wrap:wrap;gap:12px">`+results.slice(0,6).map(r=>`<div style="width:200px;cursor:pointer" onclick="showPage('catalogue');document.getElementById('catSearch').value='${searchVal}';searchCatalogue();"><img src="${r.imgSrc}" style="width:100%;border-radius:8px;border:2px solid var(--gl)" loading="lazy"><div style="font-size:.7rem;color:var(--g);margin-top:4px">${r.cat} — Trang ${r.pageNum}</div></div>`).join('')+`</div></div>`;
}

function showPage(page){
document.querySelectorAll('.page-section').forEach(el=>el.classList.remove('active'));
document.querySelectorAll('.nav-tab').forEach(el=>el.classList.toggle('active',el.dataset.page===page));
let el=document.getElementById('page-'+page);
if(el){el.classList.add('active');}
if(page==='catalogue'&&!catLoaded){loadCatalogueData();}
if(page==='catalogue'){history.pushState({type:'page',page:'catalogue'},'','/catalogue/index.html');}
else if(page==='contact'){history.pushState({type:'page',page:'contact'},'','/lien-he/index.html');}
else if(page==='products'){history.pushState({type:'list'},'','/');}
window.scrollTo({top:0,behavior:'smooth'});
}

function initCatalogue(){
// catalogue loads on demand
}


// ===== CART =====
let cart=JSON.parse(localStorage.getItem('malloca_cart')||'[]');

function updateCartBadge(){
let n=cart.reduce((s,i)=>s+i.qty,0);
let badge=document.getElementById('cartNum');
if(badge){badge.textContent=n;badge.style.display=n>0?'flex':'none'}
}

function addToCart(idx){
let p=D[idx];
let exist=cart.find(c=>c.idx===idx);
if(exist){exist.qty++}else{cart.push({idx,name:p.name,price:p.price,priceNum:p.priceNum,image:p.image,qty:1})}
localStorage.setItem('malloca_cart',JSON.stringify(cart));
updateCartBadge();
// Show brief toast notification instead of opening cart
let toast=document.createElement('div');
toast.style.cssText='position:fixed;bottom:24px;right:24px;background:var(--p);color:#fff;padding:12px 20px;border-radius:12px;font-size:.85rem;font-weight:600;z-index:999;display:flex;align-items:center;gap:8px;box-shadow:0 8px 24px rgba(0,0,0,.2);animation:fadeUp .3s ease';
toast.innerHTML='<i class="fas fa-check-circle"></i> Đã thêm vào giỏ hàng';
document.body.appendChild(toast);
setTimeout(()=>{toast.style.opacity='0';toast.style.transition='opacity .3s';setTimeout(()=>toast.remove(),300)},2000);
}

function removeFromCart(i){
cart.splice(i,1);
localStorage.setItem('malloca_cart',JSON.stringify(cart));
updateCartBadge();renderCart();
}

function changeQty(i,delta){
cart[i].qty+=delta;
if(cart[i].qty<1)cart.splice(i,1);
localStorage.setItem('malloca_cart',JSON.stringify(cart));
updateCartBadge();renderCart();
}

function openCart(){
document.getElementById('cartOverlay').classList.add('open');
document.getElementById('cartDrawer').classList.add('open');
document.body.style.overflow='hidden';
renderCart();
}

function closeCart(){
document.getElementById('cartOverlay').classList.remove('open');
document.getElementById('cartDrawer').classList.remove('open');
document.body.style.overflow='';
}

function renderCart(){
let el=document.getElementById('cartItems');
let footer=document.getElementById('cartFooter');
if(!cart.length){
el.innerHTML=`<div class="cart-empty"><i class="fas fa-shopping-bag"></i><h3>Giỏ hàng trống</h3><p style="font-size:.82rem">Thêm sản phẩm vào giỏ để đặt hàng</p></div>`;
footer.style.display='none';
return;
}
footer.style.display='block';
el.innerHTML=cart.map((c,i)=>`<div class="cart-item"><img src="${c.image}" alt="${c.name}"><div class="cart-item-info"><div class="cart-item-name">${c.name}</div><div class="cart-item-price">${c.price}</div><div class="cart-item-qty"><button class="qty-btn" onclick="changeQty(${i},-1)"></button><span class="qty-val">${c.qty}</span><button class="qty-btn" onclick="changeQty(${i},1)">+</button></div></div><button class="cart-item-del" onclick="removeFromCart(${i})"><i class="fas fa-trash"></i></button></div>`).join('');
let total=cart.reduce((s,c)=>s+c.priceNum*c.qty,0);
document.getElementById('cartTotal').textContent=total.toLocaleString('vi-VN')+'đ';
}

// ===== CHECKOUT =====
function openCheckout(){
closeCart();
let overlay=document.getElementById('checkoutOverlay');
overlay.classList.add('open');
document.body.style.overflow='hidden';
let total=cart.reduce((s,c)=>s+c.priceNum*c.qty,0);
let totalStr=total.toLocaleString('vi-VN')+'đ';
// Build order summary
let itemsHtml=cart.map(c=>`<div class="checkout-summary-item"><span>${c.name} x${c.qty}</span><span style="font-weight:600">${(c.priceNum*c.qty).toLocaleString('vi-VN')}đ</span></div>`).join('');
// Build QR URL (VietQR standard)
let qrUrl=`https://img.vietqr.io/image/VIB-918258385-compact2.jpg?amount=${total}&addInfo=${encodeURIComponent('Thanh toan don hang Malloca')}&accountName=${encodeURIComponent('TRAN QUOC VUONG')}`;
document.getElementById('checkoutContent').innerHTML=`
<h2 class="checkout-title"><i class="fas fa-qrcode" style="color:var(--a)"></i> Thanh Toán Đơn Hàng</h2>
<p class="checkout-sub">Quét mã QR để thanh toán qua ứng dụng ngân hàng</p>
<div class="checkout-summary">${itemsHtml}<div class="checkout-summary-item total"><span>Tổng cộng</span><span>${totalStr}</span></div></div>
<div class="form-group"><label>Họ tên người nhận *</label><input class="form-input" id="coName" placeholder="Nhập họ tên"></div>
<div class="form-group"><label>Số điện thoại *</label><input class="form-input" id="coPhone" placeholder="Nhập SĐT"></div>
<div class="form-group"><label>Địa chỉ giao hàng *</label><input class="form-input" id="coAddr" placeholder="Nhập địa chỉ đầy đủ"></div>
<div class="form-group"><label>Ghi chú</label><textarea class="form-input" id="coNote" placeholder="Ghi chú đơn hàng (nếu có)" style="height:70px"></textarea></div>
<div class="qr-section">
<h3 style="font-size:1rem;font-weight:700;margin-bottom:14px"><i class="fas fa-university" style="color:var(--p);margin-right:6px"></i> Chuyển khoản ngân hàng</h3>
<img src="${qrUrl}" alt="QR Thanh toán" onerror="this.parentElement.innerHTML+='<p style=color:red>Không tải được QR. Vui lòng chuyển khoản thủ công.</p>'">
<div class="qr-bank-info">
<strong>Ngân hàng:</strong> VIB - Ngân hàng TMCP Quốc Tế Việt Nam<br>
<strong>Số TK:</strong> 918258385 <button class="copy-btn" onclick="copyText('918258385')"><i class="fas fa-copy"></i> Copy</button><br>
<strong>Chủ TK:</strong> TRẦN QUỐC VƯƠNG<br>
<strong>Số tiền:</strong> <span style="color:var(--p);font-weight:800">${totalStr}</span><br>
<strong>Nội dung CK:</strong> Thanh toan don hang Malloca <button class="copy-btn" onclick="copyText('Thanh toan don hang Malloca')"><i class="fas fa-copy"></i> Copy</button>
</div>
</div>
<button class="checkout-done-btn" onclick="confirmOrder()"><i class="fas fa-check-circle"></i> Xác nhận đã thanh toán</button>
<p class="checkout-note">Đơn hàng sẽ được xử lý sau khi xác nhận thanh toán thành công.<br>Zalo hỗ trợ: <a href="https://zalo.me/0981873395" target="_blank" style="color:var(--p)"><strong>0981 873 395</strong></a></p>`;
}

function closeCheckout(){
document.getElementById('checkoutOverlay').classList.remove('open');
document.body.style.overflow='';
}

function copyText(text){
navigator.clipboard.writeText(text).then(()=>{
let btns=document.querySelectorAll('.copy-btn');
btns.forEach(b=>{if(b.previousSibling&&b.previousSibling.textContent&&b.previousSibling.textContent.includes(text)){b.innerHTML='<i class="fas fa-check"></i> Đã copy';setTimeout(()=>{b.innerHTML='<i class="fas fa-copy"></i> Copy'},2000)}});
});
}

function confirmOrder(){
let name=document.getElementById('coName').value.trim();
let phone=document.getElementById('coPhone').value.trim();
let addr=document.getElementById('coAddr').value.trim();
if(!name||!phone||!addr){alert('Vui lòng điền đầy đủ Họ tên, SĐT và Địa chỉ.');return}
// Clear cart
cart=[];localStorage.setItem('malloca_cart','[]');updateCartBadge();
// Show success
document.getElementById('checkoutContent').innerHTML=`
<div style="text-align:center;padding:40px 0">
<div style="width:80px;height:80px;background:rgba(40,167,69,.1);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px"><i class="fas fa-check" style="font-size:2rem;color:#28a745"></i></div>
<h2 style="font-size:1.4rem;font-weight:800;color:var(--d);margin-bottom:8px">Đặt hàng thành công!</h2>
<p style="color:var(--g);font-size:.9rem;margin-bottom:24px">Cảm ơn bạn đã đặt hàng. Chúng tôi sẽ liên hệ xác nhận trong thời gian sớm nhất.</p>
<div style="background:var(--l);border-radius:12px;padding:16px;text-align:left;font-size:.85rem;color:var(--d);line-height:1.8">
<strong>Người nhận:</strong> ${name}<br>
<strong>SĐT:</strong> ${phone}<br>
<strong>Địa chỉ:</strong> ${addr}
</div>
<button class="checkout-done-btn" onclick="closeCheckout();showPage('products')" style="margin-top:20px"><i class="fas fa-home"></i> Về trang chủ</button>
</div>`;
}

// Contact form
function submitContact(e){
e.preventDefault();
let form=e.target;
let name=form.querySelector('#ctName').value;
let email=form.querySelector('#ctEmail').value;
let msg=form.querySelector('#ctMsg').value;
if(!name||!email||!msg){alert('Vui lòng điền đầy đủ thông tin.');return}
form.innerHTML=`<div style="text-align:center;padding:30px"><i class="fas fa-check-circle" style="font-size:2.5rem;color:#28a745;margin-bottom:12px;display:block"></i><h3 style="font-size:1.1rem;font-weight:700;margin-bottom:8px">Gửi thành công!</h3><p style="color:var(--g);font-size:.88rem">Cảm ơn bạn đã liên hệ. Chúng tôi sẽ phản hồi sớm nhất có thể.</p></div>`;
}

// Override goHome to also handle page nav
let _origGoHome=goHome;
goHome=function(){
if(document.getElementById('detailView').classList.contains('show')){
goBack();
}
showPage('products');resetAll();
}

// ===== SEO URL ROUTING =====

// Parse current path on load (for SPA navigation within iframe)
function parseCurrentPath(){
let path=location.pathname;

// Handle ?p= redirect from static OG pages
let qp=new URLSearchParams(location.search).get('p');
if(qp){
let idx=D.findIndex(p=>p.slug===qp);
if(idx>=0){showDetailNoHistory(idx);return true;}
}

// Product page: /san-pham/<slug>/ (slug may contain slashes like dmx-tu-lanh/samsung-xxx)
let prodMatch=path.match(/^\/san-pham\/(.+?)(?:\/index\.html)?$/);
if(prodMatch){
let slug=prodMatch[1].replace(/\/+$/,'');
if(slug==='index.html'||!slug)slug=null;
let idx=slug?D.findIndex(p=>p.slug===slug):-1;
if(idx>=0){showDetailNoHistory(idx);return true;}
}

// Category page: /danh-muc/<slug>/
let catMatch=path.match(/^\/danh-muc\/([^\/]+)/);
if(catMatch){
let catSlug=catMatch[1];
S.cat=catSlug;
updActive('.cat-item','data-s',catSlug);
document.querySelectorAll('[data-b]').forEach(e=>e.classList.toggle('active',e.getAttribute('data-b')==='all'));
render();
return true;
}

// Catalogue page
if(path.startsWith('/catalogue')){showPage('catalogue');return true;}

// Contact page
if(path.startsWith('/lien-he')){showPage('contact');return true;}

return false;
}

// Also parse hash params (backward compatibility)
function parseUrlParams(){
let hash=location.hash.replace(/^#/,'');
if(!hash)return;
let params=new URLSearchParams(hash);

// Legacy hash page navigation
let pageParam=params.get('page');
if(pageParam&&pageParam!=='products'){
showPage(pageParam);
return;
}

// Legacy product hash (supports both index and slug)
let productParam=params.get('product');
if(productParam!==null){
let idx=parseInt(productParam);
if(!isNaN(idx)&&idx>=0&&idx<D.length){showDetailNoHistory(idx);return;}
// Try slug match
let slugIdx=D.findIndex(p=>p.slug===productParam);
if(slugIdx>=0){showDetailNoHistory(slugIdx);return;}
}

let q=params.get('q')||params.get('search')||'';
if(q){document.getElementById('q').value=q;S.q=q;S.pg=1;}
let cat=params.get('cat');
if(cat){S.cat=cat;updActive('.cat-item','data-s',cat);}
let brand=params.get('brand');
if(brand){S.brand=brand;document.querySelectorAll('[data-b]').forEach(e=>e.classList.toggle('active',e.getAttribute('data-b')===brand));}
let pgNum=params.get('pg');
if(pgNum){S.pg=parseInt(pgNum)||1;}
let sort=params.get('sort');
if(sort){S.sort=sort;document.getElementById('ss').value=sort;}
let p=params.get('p');
if(p==='list'){S.view='l';document.getElementById('gb').classList.remove('active');document.getElementById('lb').classList.add('active');}
}

// Update hash based on current list state (for filters)
function updateHash(){
let parts=[];
if(S.q)parts.push('q='+encodeURIComponent(S.q));
if(S.cat!=='all')parts.push('cat='+encodeURIComponent(S.cat));
if(S.brand!=='all')parts.push('brand='+encodeURIComponent(S.brand));
if(S.pg>1)parts.push('pg='+S.pg);
if(S.sort!=='default')parts.push('sort='+encodeURIComponent(S.sort));
if(S.view==='l')parts.push('p=list');
let hash=parts.length?'#'+parts.join('&'):'';
history.replaceState({type:'list'},'','/'+hash);
}

// Handle browser back/forward buttons
window.addEventListener('popstate',function(e){
let state=e.state;
if(state&&state.type==='product'&&typeof state.idx==='number'){
if(state.idx>=0&&state.idx<D.length){
let dv=document.getElementById('detailView');
if(!dv.classList.contains('show')){showDetailNoHistory(state.idx);}
}
}else{
// Go back to list view
document.getElementById('detailView').classList.remove('show');
document.getElementById('detailView').innerHTML='';
document.getElementById('listView').style.display='';
document.querySelector('.hero').style.display='';
document.title='V.AI STUDIO | Niềm tin khách hàng là tài sản của chúng tôi';
// Check if we need to show a specific page
let path=location.pathname;
if(path.startsWith('/catalogue')){showPage('catalogue');}
else if(path.startsWith('/lien-he')){showPage('contact');}
else{
document.querySelectorAll('.page-section').forEach(el=>el.classList.remove('active'));
let prodPage=document.getElementById('page-products');
if(prodPage)prodPage.classList.add('active');
document.querySelectorAll('.nav-tab').forEach(el=>el.classList.toggle('active',el.dataset.page==='products'));
parseUrlParams();
render();
}
}
});

// showDetail without pushing history (for popstate)
function showDetailNoHistory(idx){
_skipHistory=true;
showDetail(idx);
}

// ===== SHARE (Web Share API + Popover fallback) =====
let _shareData={title:'',text:'',url:''};

async function shareProduct(slug,name){
let url=location.origin+'/san-pham/'+slug+'/index.html';
let title=name||document.title;
let text=title+' - V.AI STUDIO';
// Try native share first (includes image via OG tags already set by showDetail)
if(navigator.share){
try{await navigator.share({title,text,url});return}catch(e){if(e.name==='AbortError')return}
}
// Fallback: show share popover
openSharePopover(url,title,text);
}

function shareCurrentPage(){
let url=location.href;
let title=document.title;
let text=title;
if(navigator.share){
navigator.share({title,text,url}).catch(()=>{});
return;
}
openSharePopover(url,title,text);
}

function openSharePopover(url,title,text){
_shareData={title:title||'',text:text||'',url:url||location.href};
document.getElementById('shareLinkInput').value=_shareData.url;
document.getElementById('shareOverlay').classList.add('open');
}
function closeSharePopover(){document.getElementById('shareOverlay').classList.remove('open')}

function shareVia(platform){
let u=encodeURIComponent(_shareData.url);
let t=encodeURIComponent(_shareData.title);
let txt=encodeURIComponent(_shareData.text+' '+_shareData.url);
let win=null;
switch(platform){
case'facebook':win=window.open('https://www.facebook.com/sharer/sharer.php?u='+u,'_blank','width=600,height=400');break;
case'messenger':win=window.open('https://www.facebook.com/dialog/send?link='+u+'&redirect_uri='+u,'_blank');break;
case'zalo':win=window.open('https://zalo.me/share?url='+u,'_blank');break;
case'twitter':win=window.open('https://twitter.com/intent/tweet?text='+t+'&url='+u,'_blank','width=600,height=400');break;
case'telegram':win=window.open('https://t.me/share/url?url='+u+'&text='+t,'_blank');break;
case'whatsapp':win=window.open('https://wa.me/?text='+txt,'_blank');break;
case'email':window.location.href='mailto:?subject='+t+'&body='+txt;break;
case'copy':
if(navigator.clipboard){navigator.clipboard.writeText(_shareData.url).then(()=>showToast('Đã sao chép link!'))}
else{let ta=document.createElement('textarea');ta.value=_shareData.url;ta.style.cssText='position:fixed;top:-9999px';document.body.appendChild(ta);ta.select();document.execCommand('copy');document.body.removeChild(ta);showToast('Đã sao chép link!')}
break;
}
closeSharePopover();
}

function showToast(msg){
let old=document.querySelector('.share-toast');if(old)old.remove();
let t=document.createElement('div');t.className='share-toast';
t.style.cssText='position:fixed;bottom:24px;right:24px;background:#28a745;color:#fff;padding:12px 20px;border-radius:12px;font-size:.85rem;font-weight:600;z-index:999;box-shadow:0 4px 12px rgba(0,0,0,.2)';
t.innerHTML='<i class="fas fa-check-circle" style="margin-right:6px"></i>'+msg;
document.body.appendChild(t);
setTimeout(()=>{t.style.opacity='0';t.style.transition='opacity .3s';setTimeout(()=>t.remove(),300)},2500);
}

// ===== AI CHATBOX =====
let chatHistory=[];
let chatBusy=false;

function toggleChat(){
let box=document.getElementById('chatbox');
let ov=document.getElementById('chatOverlay2');
if(box.classList.contains('open')){closeChat()}
else{box.classList.add('open');ov.classList.add('open');document.getElementById('chatInput').focus()}
}
function closeChat(){
document.getElementById('chatbox').classList.remove('open');
document.getElementById('chatOverlay2').classList.remove('open');
}

function sendSuggestion(el){
document.getElementById('chatInput').value=el.textContent;
document.getElementById('chatSuggestions').style.display='none';
sendChat();
}

function appendMsg(role,html){
let body=document.getElementById('chatBody');
let div=document.createElement('div');
div.className='chat-msg '+role;
div.innerHTML=html;
// Add Zalo share button to bot messages
if(role==='bot'){
let shareBtn=document.createElement('div');
shareBtn.style.cssText='margin-top:8px;padding-top:6px;border-top:1px solid var(--gl);display:flex;gap:6px';
shareBtn.innerHTML='<button onclick="shareChatToZalo(this.closest(\'.chat-msg\'))" style="padding:5px 12px;background:#0068FF;color:#fff;border:none;border-radius:6px;font-size:.72rem;font-weight:600;cursor:pointer;font-family:inherit;display:inline-flex;align-items:center;gap:5px"><i class="fas fa-comment-dots"></i> Gửi qua Zalo</button>';
div.appendChild(shareBtn);
}
body.appendChild(div);
body.scrollTop=body.scrollHeight;
return div;
}

function shareChatToZalo(msgEl){
// Lấy toàn bộ nội dung hội thoại
let body=document.getElementById('chatBody');
let allMsgs=body.querySelectorAll('.chat-msg');
let lines=[];
allMsgs.forEach(m=>{
let clone=m.cloneNode(true);
clone.querySelectorAll('div[style*="border-top"]').forEach(b=>b.remove());
let txt=(clone.innerText||clone.textContent||'').trim();
if(!txt)return;
let role=m.classList.contains('user')?'🧑 Khách:':'🤖 AI:';
lines.push(role+' '+txt);
});
let text=lines.join('\n\n').substring(0,3000);
text='[V.AI STUDIO - Tư vấn thiết bị nhà bếp]\n\n'+text+'\n\n---\nGửi từ: '+location.origin;
// Copy vào clipboard
if(navigator.clipboard){
navigator.clipboard.writeText(text).catch(function(){
let ta=document.createElement('textarea');ta.value=text;ta.style.cssText='position:fixed;top:-9999px';
document.body.appendChild(ta);ta.select();document.execCommand('copy');document.body.removeChild(ta);
});
}else{
let ta=document.createElement('textarea');ta.value=text;ta.style.cssText='position:fixed;top:-9999px';
document.body.appendChild(ta);ta.select();document.execCommand('copy');document.body.removeChild(ta);
}
// Mở Zalo profile — user nhấn "Nhắn tin" rồi paste
showToast('✅ Đã sao chép nội dung! Nhấn "Nhắn tin" trên Zalo rồi DÁN để gửi.');
setTimeout(function(){window.open('https://zalo.me/0981873395','_blank')},800);
}

function showTyping(){
let body=document.getElementById('chatBody');
let div=document.createElement('div');
div.className='chat-typing';div.id='typingIndicator';
div.innerHTML='<span></span><span></span><span></span>';
body.appendChild(div);
body.scrollTop=body.scrollHeight;
}
function hideTyping(){let el=document.getElementById('typingIndicator');if(el)el.remove()}

// Search products locally
function searchProducts(query){
if(!D||!D.length)return[];
// Use natural-language search first: combo budgets + technical specs in product specs/desc/sum.
try{
  if(window._vaiNaturalSearch){
    let nr=window._vaiNaturalSearch(query,24);
    if(nr){
      let seen={};let arr=[];
      if(nr.combos&&nr.combos.length){nr.combos.slice(0,3).forEach(c=>c.items.forEach(r=>{let p=r.p;if(p&&p.slug&&!seen[p.slug]){seen[p.slug]=1;arr.push(p);}}));}
      if(nr.groups&&nr.groups.length){nr.groups.forEach(g=>g.items.slice(0,6).forEach(r=>{let p=r.p;if(p&&p.slug&&!seen[p.slug]){seen[p.slug]=1;arr.push(p);}}));}
      if(arr.length)return arr.slice(0,12);
    }
  }
}catch(e){console.warn('natural searchProducts failed',e)}
// Use advanced search-plus-boot.js context search.
try{
  if(window._vaiSearchContext){
    let advanced=window._vaiSearchContext(query,12).map(x=>x.p).filter(Boolean);
    if(advanced.length)return advanced;
  }
}catch(e){console.warn('advanced searchProducts failed',e)}
let q=nVN(query);
let words=q.split(/\s+/).filter(w=>w.length>1);
let scored=D.map((p,i)=>{
let idx=p._idx;
let score=0;
words.forEach(w=>{
if(idx&&idx.includes(w))score+=1;
if(p.name&&nVN(p.name).includes(w))score+=3;
if(p.cat&&nVN(p.cat).includes(w))score+=2;
});
return{p,score};
}).filter(x=>x.score>0).sort((a,b)=>b.score-a.score);
return scored.slice(0,8).map(x=>x.p);
}


function localAIFallbackAnswer(q){
  try{if(window._vaiTechnicalTextAnswer){let t=window._vaiTechnicalTextAnswer(q);if(t)return t;}}catch(e){}
  try{let ps=searchProducts(q);if(ps&&ps.length){return 'Em tìm được '+ps.length+' sản phẩm phù hợp theo dữ liệu hiện có. Anh/chị xem các thẻ sản phẩm bên dưới; nếu cần thông số cụ thể hãy nhắn mã SP hoặc tiêu chí kỹ thuật.';}}catch(e){}
  return 'Hiện hệ thống AI đang bận, nhưng em vẫn có thể tìm theo mã SP, tên sản phẩm hoặc tiêu chí như: combo bếp từ máy hút mùi dưới 15 triệu, kệ gia vị Grob 300mm.';
}

// Format products for context
function productsToContext(products){
return products.map(p=>{
let specs='';
if(p.specs&&Object.keys(p.specs).length){specs=' | Thông số: '+Object.entries(p.specs).slice(0,5).map(([k,v])=>k+': '+v).join(', ')}
return '- '+p.name+' | Giá: '+(p.price||'Liên hệ')+' | Danh mục: '+p.cat+specs;
}).join('\n');
}

// Format bot response
function formatBotResponse(text,matchedProducts){
// Strip any raw URLs or markdown links — keep text only
text=text.replace(/\[([^\]]+)\]\([^)]+\)/g,'$1');
text=text.replace(/https?:\/\/[^\s<)]+/g,'');
text=text.replace(/\/san-pham\/[a-z0-9-]+\/index\.html/g,'');
// Bold
text=text.replace(/\*\*([^*]+)\*\*/g,'<strong>$1</strong>');
// Line breaks
text=text.replace(/\n/g,'<br>');
// Smart product cards: only show products MENTIONED in the AI response
if(matchedProducts&&matchedProducts.length>0){
let mentionedProducts=filterMentionedProducts(text,matchedProducts);
if(mentionedProducts.length>0){
let cards=mentionedProducts.slice(0,4).map(p=>{
let pidx=D.findIndex(d=>d.slug===p.slug);
let cartBtn=pidx>=0&&p.priceNum>0?'<button onclick="event.stopPropagation();addToCart('+pidx+');this.innerHTML=\'✅ Đã thêm\';this.disabled=true" style="padding:4px 10px;background:var(--a);color:#fff;border:none;border-radius:6px;font-size:.68rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:4px;font-family:inherit"><i class="fas fa-cart-plus"></i> Thêm giỏ</button>':'';
return '<div style="display:flex;gap:10px;background:var(--l);border-radius:10px;padding:10px;margin-top:6px;border:1px solid var(--gl)">'
+'<a href="/san-pham/'+p.slug+'/index.html" style="flex-shrink:0;text-decoration:none"><img src="'+p.image+'" style="width:50px;height:50px;object-fit:contain;border-radius:6px;background:#fff" onerror="this.style.display=\'none\'"></a>'
+'<div style="flex:1;min-width:0"><a href="/san-pham/'+p.slug+'/index.html" style="text-decoration:none;color:inherit"><div style="font-size:.76rem;font-weight:600;color:var(--d);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden">'+p.name+'</div>'
+'<div style="font-size:.8rem;font-weight:800;color:var(--p);margin-top:2px">'+(p.price||'Liên hệ')+'</div></a>'
+'<div style="display:flex;gap:6px;margin-top:6px;flex-wrap:wrap">'
+cartBtn
+'<a href="/san-pham/'+p.slug+'/index.html" style="padding:4px 10px;background:var(--p);color:#fff;border-radius:6px;font-size:.68rem;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:4px"><i class="fas fa-eye"></i> Xem</a>'
+'</div></div></div>';
}).join('');
text+='<div style="margin-top:10px;padding-top:10px;border-top:1px solid var(--gl)"><div style="font-size:.68rem;font-weight:700;color:var(--g);margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px">👉 Sản phẩm được đề cập</div>'+cards+'</div>';
}
}
return text;
}

// Filter products that are actually mentioned in the AI response
function filterMentionedProducts(responseText,products){
if(!products||!products.length)return[];
let text=responseText.toLowerCase().replace(/<[^>]*>/g,' ');
let textClean=text.replace(/[^a-z0-9]/g,'');
let mentioned=[];
let scores=[];
for(let p of products){
let score=0;
// Check model code (strongest signal)
let model=(p.model||'').toLowerCase().replace(/[^a-z0-9]/g,'');
if(model.length>=4&&textClean.includes(model)){score+=10}
// Check significant name words (need >=3 matches for generic names)
let nameWords=p.name.toLowerCase().replace(/[|]/g,' ').split(/\s+/).filter(w=>w.length>3&&!['malloca','eurogold','grob','phụ','kiện'].includes(w));
let matchCount=nameWords.filter(w=>text.includes(w)).length;
if(matchCount>=3){score+=matchCount}
if(score>0)scores.push({p,score});
}
// Sort by score descending, take top matches
scores.sort((a,b)=>b.score-a.score);
return scores.slice(0,4).map(s=>s.p);
}

async function sendChat(){
if(chatBusy)return;
let input=document.getElementById('chatInput');
let msg=input.value.trim();
if(!msg)return;
input.value='';
input.style.height='auto';
document.getElementById('chatSuggestions').style.display='none';

// Show user message
appendMsg('user',msg.replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/\n/g,'<br>'));

// Handle cart/quote/checkout commands
let msgLower=nVN(msg);
if(msgLower.match(/bao gia|lap bao gia|len bao gia|xuat bao gia|in bao gia/)){
// Extract SKU codes and add to cart
let skuPart=msg.replace(/^.*?(b[aá]o\s*gi[aá]|l[âaà]p|xu[aấ]t)/i,'').trim();
let codes=skuPart.split(/[,;\s]+/).map(s=>s.trim()).filter(s=>s.length>=3);
let addedNames=[];
if(codes.length>0&&typeof D!=='undefined'&&D.length){
  codes.forEach(code=>{
    let cNorm=code.toLowerCase().replace(/[\-\s_.\/]/g,'');
    for(let i=0;i<D.length;i++){
      let p=D[i];if(!p)continue;
      let pSku=((p.sku||'')+(p.model||p.mod||'')).toLowerCase().replace(/[\-\s_.\/]/g,'');
      let pName=(p.name||'').toLowerCase().replace(/[\-\s_.\/]/g,'');
      if((pSku&&(pSku.indexOf(cNorm)!==-1||cNorm.indexOf(pSku)!==-1))||(cNorm.length>=5&&pName.indexOf(cNorm)!==-1)){
        if(typeof addToCart==='function')addToCart(i);
        addedNames.push((p.sku||p.model||p.mod||code)+' - '+(p.name||'').substring(0,30));
        break;
      }
    }
  });
}
// Now render LIVE quote from current cart
if(cart.length===0&&addedNames.length===0){
  appendMsg('bot','Anh/chị cho em mã SP cần báo giá nhé! 😊<br>VD: <b>báo giá MH802</b> hoặc <b>báo giá MH802, MC9086HS</b>');
  chatBusy=false;return;
}
// Build quote table from CURRENT CART (real-time)
let total=cart.reduce((s,c)=>s+c.priceNum*c.qty,0);
let rows=cart.map((c,i)=>'<tr><td style="padding:5px;text-align:center;font-size:.72rem">'+(i+1)+'</td><td style="padding:5px">'+(c.image?'<img src="'+c.image+'" style="width:32px;height:32px;object-fit:contain;border-radius:4px" referrerpolicy="no-referrer" onerror="this.style.display=\'none\'">':'')+'</td><td style="padding:5px;font-size:.7rem;font-weight:600">'+c.name.substring(0,30)+'<br><span style="font-size:.58rem;color:#94a3b8">'+(c.sku||c.model||'')+'</span></td><td style="padding:5px;text-align:center;font-size:.7rem">'+c.qty+'</td><td style="padding:5px;text-align:right;font-size:.7rem;font-weight:700;white-space:nowrap">'+(c.priceNum?c.priceNum.toLocaleString('vi-VN')+'đ':'LH')+'</td></tr>').join('');
let addedInfo=addedNames.length>0?'<div style="font-size:.7rem;color:#059669;margin-bottom:6px">✅ Đã thêm: '+addedNames.join(', ')+'</div>':'';
let qH='<div style="background:var(--l,#f8fafc);border-radius:10px;padding:10px;margin-top:6px;max-width:100%;overflow:hidden">'+addedInfo+'<div style="font-weight:800;font-size:.8rem;color:var(--p,#003f62);margin-bottom:6px">📋 BÁO GIÁ ('+cart.length+' SP)</div><div style="overflow-x:auto"><table style="width:100%;border-collapse:collapse;border:1px solid var(--gl,#e2e8f0);border-radius:6px;overflow:hidden"><thead><tr style="background:var(--p,#003f62);color:#fff"><th style="padding:4px;font-size:.6rem">#</th><th style="padding:4px;font-size:.6rem">Ảnh</th><th style="padding:4px;font-size:.6rem;text-align:left">SP</th><th style="padding:4px;font-size:.6rem">SL</th><th style="padding:4px;font-size:.6rem;text-align:right">Giá</th></tr></thead><tbody>'+rows+'</tbody><tfoot><tr style="background:rgba(0,63,98,.05)"><td colspan="4" style="padding:6px;font-weight:800;font-size:.72rem;text-align:right">TỔNG:</td><td style="padding:6px;font-weight:900;font-size:.8rem;color:var(--p,#003f62);text-align:right;white-space:nowrap">'+total.toLocaleString('vi-VN')+'đ</td></tr></tfoot></table></div><div style="display:flex;gap:4px;margin-top:8px;flex-wrap:wrap"><button onclick="if(typeof openQuotation===\'function\'){openQuotation();if(typeof closeChat===\'function\')closeChat();}" style="padding:5px 10px;background:var(--p,#003f62);color:#fff;border:none;border-radius:6px;font-size:.68rem;font-weight:700;cursor:pointer">📋 Lập phiếu báo giá</button><button onclick="if(window.VAI_ORDERS&&window.VAI_ORDERS.save)window.VAI_ORDERS.save()" style="padding:5px 10px;background:#7c3aed;color:#fff;border:none;border-radius:6px;font-size:.68rem;font-weight:700;cursor:pointer">💾 Lưu</button><button onclick="if(typeof shareQuoteImage===\'function\')shareQuoteImage()" style="padding:5px 10px;background:#25D366;color:#fff;border:none;border-radius:6px;font-size:.68rem;font-weight:700;cursor:pointer">📤 Chia sẻ</button></div><div style="font-size:.62rem;color:var(--g,#64748b);margin-top:6px;font-style:italic">💡 Nhắn thêm mã SP để bổ sung vào báo giá. VD: <b>báo giá K1603CL</b></div></div>';
appendMsg('bot','Dạ em báo giá ngay ạ! 📋'+qH);
chatBusy=false;return;
}

if(msgLower.match(/thanh toan|chuyen khoan|qr|quyet toan/)){
if(cart.length===0){
appendMsg('bot','Giỏ hàng đang trống ạ. Anh/chị chọn sản phẩm trước rồi em hỗ trợ thanh toán nhé! 😊');
chatBusy=false;return;
}
openCheckout();closeChat();
chatBusy=false;return;
}

if(msgLower.match(/^gio hang$|^xem gio$|^xem gio hang$/)){
if(cart.length===0){
appendMsg('bot','Giỏ hàng đang trống ạ. Anh/chị muốn tìm sản phẩm gì để em tư vấn? 😊');
}else{
let items=cart.map((c,i)=>`${i+1}. **${c.name}** x${c.qty} — ${c.priceNum?c.priceNum.toLocaleString('vi-VN')+'đ':'Liên hệ'}`).join('<br>');
let total=cart.reduce((s,c)=>s+c.priceNum*c.qty,0);
appendMsg('bot','🛒 Giỏ hàng hiện tại:<br>'+items+'<br><br><strong>Tổng: '+total.toLocaleString('vi-VN')+'đ</strong><br><br>Anh/chị có muốn em <strong>lên báo giá</strong> hoặc <strong>thanh toán</strong> không ạ?');
}
chatBusy=false;return;
}

// Search related products
let matchedProducts=searchProducts(msg);
let productContext=matchedProducts.length
  ? matchedProducts.map((p,i)=>{
    let specs='';
    if(p.specs&&Object.keys(p.specs).length){
      specs=Object.entries(p.specs).slice(0,8).map(([k,v])=>k+': '+v).join('; ');
    }
    let features=(p.feats&&p.feats.length)?p.feats.slice(0,4).join('; '):'';
    return `${i+1}. ${p.name}
   Giá: ${p.price||'Liên hệ'} | ${p.cat} | ${p.brand}
   ${specs?'Thông số: '+specs:''}
   ${features?'Tính năng: '+features:''}
   ${p.summary?'Mô tả: '+p.summary.substring(0,200):''}`;
  }).join('\n\n')
  : '';

// Prepare messages for AI
chatHistory.push({role:'user',content:msg});

let systemPrompt=`Bạn là V.AI STUDIO — chuyên gia tư vấn thiết bị nhà bếp & khóa thông minh, với nhiều năm kinh nghiệm.

CÁCH TRẢ LỜI:
- Nói chuyện tự nhiên: xưng "em", gọi khách "anh/chị"
- PHÂN TÍCH nhu cầu cụ thể trước (diện tích bếp, số người, ngân sách)
- Giải thích TẠI SAO sản phẩm phù hợp — đừng chỉ liệt kê
- KHÔNG chèn link URL. KHÔNG dùng markdown link
- Dùng **in đậm** cho tên SP, emoji vừa phải
- Kết thúc bằng câu hỏi mở

KHẢ NĂNG ĐẶC BIỆT — hướng dẫn khách dùng:
- Nếu khách muốn mua, hướng dẫn: "Anh/chị gõ **'thêm giỏ'** hoặc bấm nút 🛒 bên cạnh sản phẩm"
- Nếu khách muốn báo giá, hướng dẫn: "Anh/chị gõ **'báo giá'** để em lên bảng báo giá chi tiết"
- Nếu khách muốn thanh toán, hướng dẫn: "Anh/chị gõ **'thanh toán'** để chuyển khoản qua QR"
- Nếu khách muốn xem giỏ hàng: "Anh/chị gõ **'giỏ hàng'** để xem"

${cart.length>0?'GIỎHÀNG HIỆN TẠI ('+cart.length+' SP):\\n'+cart.map(c=>c.name+' x'+c.qty+' — '+(c.priceNum?c.priceNum.toLocaleString('vi-VN')+'đ':'Liên hệ')).join('\\n')+'\\nTổng: '+cart.reduce((s,c)=>s+c.priceNum*c.qty,0).toLocaleString('vi-VN')+'đ':'Giỏ hàng đang trống.'}

${productContext ? 'DỮ LIỆU SẢN PHẨM:\\n'+productContext : 'Không có SP khớp — tư vấn bằng kiến thức chuyên môn.'}

THÔNG TIN:
- 2256 sản phẩm, 5 thương hiệu: Malloca, Eurogold, Grob, Canzy, Demax
- Malloca: thiết bị bếp cao cấp châu Âu
- Eurogold: phụ kiện tủ bếp inox 304
- Grob: phụ kiện nhập khẩu, ưu tiên tư vấn Grob cho phụ kiện tủ bếp; AI search đã hỗ trợ câu hỏi tự nhiên, combo nhiều nhóm sản phẩm theo ngân sách tổng, và lọc thông số kỹ thuật như ống thoát Ø150, công suất hút, độ ồn, kích thước
- Canzy: bếp từ, máy hút mùi
- Demax: khóa cửa thông minh Made in Malaysia
- Zalo tư vấn: 0981 873 395 (zalo.me/0981873395) hoặc 0918 258 385 (zalo.me/0918258385)`;

let messages=[{role:'system',content:systemPrompt}];
// Keep last 8 messages for context
let recent=chatHistory.slice(-8);
messages.push(...recent);

chatBusy=true;
document.getElementById('chatSend').disabled=true;
showTyping();

try{
// Auto-detect token from any variable name
let vars=window.huggingface?.variables||{};
let token=vars.HF_TOKEN||vars.VAISTUDIO||vars.AI_TOKEN||vars.TOKEN||'';
// Filter out non-token values
if(token&&!token.startsWith('hf_'))token='';

if(!token){
hideTyping();
// Smart local response without AI
let reply='';
if(matchedProducts.length>0){
reply='Tôi tìm thấy <strong>'+matchedProducts.length+' sản phẩm</strong> phù hợp với yêu cầu của bạn:';
}else{
reply='Tôi chưa tìm thấy sản phẩm cụ thể. Bạn có thể thử:<br>• Gõ tên sản phẩm (ví dụ: "bếp từ", "máy hút mùi")<br>• Gõ danh mục (ví dụ: "lò nướng", "chậu rửa")<br>• Gõ mã sản phẩm hoặc thương hiệu<br><br>💬 Hoặc nhắn Zalo <a href="https://zalo.me/0981873395" target="_blank" style="color:var(--p);font-weight:700">0981 873 395</a> để được tư vấn trực tiếp!';
}
appendMsg('bot',formatBotResponse(reply,matchedProducts));
chatHistory.push({role:'assistant',content:reply});
chatBusy=false;document.getElementById('chatSend').disabled=false;
return;
}

let resp=await fetch('https://router.huggingface.co/v1/chat/completions',{
method:'POST',
headers:{'Authorization':'Bearer '+token,'Content-Type':'application/json'},
body:JSON.stringify({
model:'meta-llama/Llama-3.3-70B-Instruct',
messages:messages,
max_tokens:500,
temperature:0.7,
top_p:0.9,
stream:true
})
});

hideTyping();

if(!resp.ok){
let err=await resp.text();
console.error('Chat API error:',resp.status,err);
appendMsg('bot',formatBotResponse('Xin lỗi, hệ thống AI đang bận. Đây là sản phẩm tôi tìm được cho anh/chị:',matchedProducts));
chatBusy=false;document.getElementById('chatSend').disabled=false;
return;
}

// Stream response — typewriter effect
let fullReply='';
let botDiv=appendMsg('bot','<span class="typing-cursor"></span>');
let reader=resp.body.getReader();
let decoder=new TextDecoder();
let buffer='';

while(true){
let {done,value}=await reader.read();
if(done)break;
buffer+=decoder.decode(value,{stream:true});
let lines=buffer.split('\n');
buffer=lines.pop();
for(let line of lines){
line=line.trim();
if(!line.startsWith('data: '))continue;
let data=line.slice(6);
if(data==='[DONE]')break;
try{
let j=JSON.parse(data);
let delta=j.choices?.[0]?.delta?.content;
if(delta){
fullReply+=delta;
botDiv.innerHTML=formatBotResponse(fullReply,null)+'<span class="typing-cursor" style="display:inline;animation:blink .8s step-end infinite;color:var(--p)"></span>';
document.getElementById('chatBody').scrollTop=document.getElementById('chatBody').scrollHeight;
}
}catch(e){}
}
}
// Remove cursor, add product cards
botDiv.innerHTML=formatBotResponse(fullReply,matchedProducts);
chatHistory.push({role:'assistant',content:fullReply});
document.getElementById('chatBody').scrollTop=document.getElementById('chatBody').scrollHeight;

}catch(e){
hideTyping();
console.error('Chat error:',e);
appendMsg('bot',formatBotResponse('Xin lỗi, đã có lỗi xảy ra. Đây là sản phẩm tôi tìm được cho anh/chị:',matchedProducts));
}

chatBusy=false;
document.getElementById('chatSend').disabled=false;
}

// Legacy compatibility
function copyProductLink(slug){shareProduct(slug)}
function copyCurrentLink(){shareCurrentPage()}
function fallbackCopy(text){
if(navigator.clipboard){navigator.clipboard.writeText(text).then(()=>showToast('Đã sao chép!'))}
else{let ta=document.createElement('textarea');ta.value=text;ta.style.cssText='position:fixed;top:-9999px';document.body.appendChild(ta);ta.select();document.execCommand('copy');document.body.removeChild(ta);showToast('Đã sao chép!')}
}

// ===== INLINE QUOTE VIEW + EXCEL EXPORT =====
function viewQuoteInline(btn){
let container=btn.closest('div').parentElement;
let existing=container.querySelector('.quote-inline-detail');
if(existing){existing.remove();return;}
let today=new Date().toLocaleDateString('vi-VN');
let total=cart.reduce((s,c)=>s+c.priceNum*c.qty,0);
let rows=cart.map((c,i)=>{
let unit=c.priceNum?c.priceNum.toLocaleString('vi-VN')+'đ':'Liên hệ';
let sub=(c.priceNum*c.qty).toLocaleString('vi-VN')+'đ';
return `<tr style="border-bottom:1px solid var(--gl)">
<td style="padding:10px 8px;font-size:.8rem;text-align:center;color:var(--g)">${i+1}</td>
<td style="padding:10px 8px"><div style="font-size:.8rem;font-weight:600">${c.name}</div></td>
<td style="padding:10px 8px;text-align:center;font-size:.8rem">${c.qty}</td>
<td style="padding:10px 8px;text-align:right;font-size:.8rem;white-space:nowrap">${unit}</td>
<td style="padding:10px 8px;text-align:right;font-size:.85rem;font-weight:700;color:var(--p);white-space:nowrap">${sub}</td>
</tr>`;}).join('');

let html=`<div class="quote-inline-detail" style="margin-top:12px;background:#fff;border-radius:12px;border:2px solid var(--p);overflow:hidden">
<div style="background:linear-gradient(135deg,var(--p),#0077b6);color:#fff;padding:16px 18px">
<div style="display:flex;align-items:center;gap:10px;margin-bottom:6px">
<img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_200.png" style="height:30px;filter:brightness(10)" onerror="this.style.display='none'">
<div style="font-weight:800;font-size:1rem">V.AI STUDIO</div>
</div>
<div style="font-size:.72rem;opacity:.8">Niềm tin khách hàng là tài sản của chúng tôi</div>
</div>
<div style="padding:16px 18px">
<div style="display:flex;justify-content:space-between;margin-bottom:12px">
<div><div style="font-size:.7rem;color:var(--g);text-transform:uppercase;letter-spacing:1px">Báo giá</div><div style="font-size:1.1rem;font-weight:800;color:var(--d)">BG-${Date.now().toString(36).toUpperCase()}</div></div>
<div style="text-align:right"><div style="font-size:.72rem;color:var(--g)">Ngày lập</div><div style="font-size:.85rem;font-weight:600">${today}</div></div>
</div>
<table style="width:100%;border-collapse:collapse">
<thead><tr style="background:var(--l)">
<th style="padding:8px;font-size:.7rem;text-align:center;color:var(--g);font-weight:700">STT</th>
<th style="padding:8px;font-size:.7rem;text-align:left;color:var(--g);font-weight:700">SẢN PHẨM</th>
<th style="padding:8px;font-size:.7rem;text-align:center;color:var(--g);font-weight:700">SL</th>
<th style="padding:8px;font-size:.7rem;text-align:right;color:var(--g);font-weight:700">ĐƠN GIÁ</th>
<th style="padding:8px;font-size:.7rem;text-align:right;color:var(--g);font-weight:700">THÀNH TIỀN</th>
</tr></thead>
<tbody>${rows}</tbody>
</table>
<div style="display:flex;justify-content:flex-end;padding:12px 8px;background:var(--l);border-radius:8px;margin-top:8px">
<div style="text-align:right"><div style="font-size:.72rem;color:var(--g)">TỔNG CỘNG</div><div style="font-size:1.2rem;font-weight:900;color:var(--p)">${total.toLocaleString('vi-VN')}đ</div></div>
</div>
<div style="margin-top:12px;padding-top:12px;border-top:1px dashed var(--gl);font-size:.72rem;color:var(--g);line-height:1.6">
💬 Zalo: <a href="https://zalo.me/0981873395" target="_blank" style="color:var(--p);font-weight:600">0981 873 395</a> · <a href="https://zalo.me/0918258385" target="_blank" style="color:var(--p);font-weight:600">0918 258 385</a><br>
💡 Giá đã bao gồm VAT · Miễn phí giao hàng trong TPHCM
</div>
</div>
</div>`;
container.insertAdjacentHTML('beforeend',html);
document.getElementById('chatBody').scrollTop=document.getElementById('chatBody').scrollHeight;
}

function exportQuoteExcel(){
if(!cart.length)return;
let today=new Date().toLocaleDateString('vi-VN');
let total=cart.reduce((s,c)=>s+c.priceNum*c.qty,0);
// Build CSV with BOM for Excel UTF-8
let csv='\uFEFF';
csv+='BÁO GIÁ V.AI STUDIO\n';
csv+='Ngày: '+today+'\n\n';
csv+='STT,Mã SP,Sản phẩm,SL,Đơn giá,Thành tiền\n';
cart.forEach((c,i)=>{
let name=c.name.replace(/,/g,' -');
let p=D[c.idx];
let sku=p?p.sku||p.model:'';
csv+=(i+1)+','+sku+','+name+','+c.qty+','+(c.priceNum||0)+','+(c.priceNum*c.qty)+'\n';
});
csv+=',,,,,\n';
csv+=',,,,TỔNG CỘNG,'+total+'\n';
csv+='\n';
csv+='Zalo: 0981 873 395 | 0918 258 385\n';
csv+='Niềm tin khách hàng là tài sản của chúng tôi\n';
let blob=new Blob([csv],{type:'text/csv;charset=utf-8'});
let url=URL.createObjectURL(blob);
let a=document.createElement('a');
a.href=url;a.download='BaoGia_VAI_STUDIO_'+today.replace(/\//g,'-')+'.csv';
a.click();URL.revokeObjectURL(url);
showToast('Đã tải báo giá Excel!');
}

// ===== QUOTATION SYSTEM =====
function openQuotation(){
closeCart();
let overlay=document.getElementById('quoteOverlay');
overlay.classList.add('open');
document.body.style.overflow='hidden';
// Set default date
document.getElementById('qcDate').value=new Date().toISOString().split('T')[0];
// Auto-generate order code
generateOrderCode();
// Listen for name/date changes to regenerate
document.getElementById('qcName').addEventListener('input',generateOrderCode);
document.getElementById('qcDate').addEventListener('change',generateOrderCode);
// Build product table
renderQuoteTable();
}

function generateOrderCode(){
let name=(document.getElementById('qcName').value||'').trim();
let date=document.getElementById('qcDate').value||'';
// Extract initials from name (first letter of each word, uppercase)
let initials=name.split(/\s+/).map(w=>w.charAt(0)).join('').toUpperCase()||'KH';
// Format date as DDMMYY
let dParts=date.split('-');// YYYY-MM-DD
let datePart=dParts.length===3?(dParts[2]+dParts[1]+dParts[0].slice(2)):(new Date().toLocaleDateString('en-GB').replace(/\//g,'').slice(0,6));
let code=initials+datePart;
document.getElementById('qcCompany').value=code;
}

function closeQuotation(){
document.getElementById('quoteOverlay').classList.remove('open');
document.body.style.overflow='';
}

let _quoteUnlocked=false;

function checkQuoteAccess(){
let code=document.getElementById('qcAccessCode').value;
let status=document.getElementById('qcAccessStatus');
let icon=document.getElementById('qcLockIcon');
let promptBox=document.getElementById('aiPromptBox');
if(code==='V.AISTUDIO'){
_quoteUnlocked=true;document.body.classList.add('vas-unlocked');localStorage.setItem('vas_quote_unlocked','1');
status.textContent='🔓 Đã mở';
status.style.color='#28a745';
icon.className='fas fa-lock-open';icon.style.color='#28a745';
promptBox.style.display='block';document.querySelectorAll('[data-order-btn]').forEach(function(b){b.style.display=''});
document.querySelectorAll('.qt-disc').forEach(el=>{el.disabled=false;el.style.background='#fff';el.style.cursor='text'});
}else{
_quoteUnlocked=false;
status.textContent='🔒';
status.style.color='var(--g)';
icon.className='fas fa-lock';icon.style.color='var(--g)';
promptBox.style.display='none';
document.querySelectorAll('.qt-disc').forEach(el=>{el.disabled=true;el.style.background='var(--l)';el.style.cursor='not-allowed'});
}
}

async function applyAiDiscount(){
let inp=document.getElementById('qcAiPrompt');
let txt=inp?inp.value.trim():'';
let btn=document.getElementById('aiDiscBtn');
let statusEl=document.getElementById('aiDiscStatus');
if(!txt){if(statusEl)statusEl.textContent='VD: Malloca ck 35%, giao hàng 200k, lắp đặt 500k, cọc 5tr, ghi chú: giao thứ 7';return}

let commands=txt.split(/[,;\n]+/).map(c=>c.trim()).filter(c=>c.length>1);
let results=[];
let applied=0;
let fees=[];
let deposit=0;
let depositPct=0;
let noteText='';

commands.forEach(cmd=>{
  let cmdLow=cmd.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/[đĐ]/g,'d');
  
  // GHI CHÚ: ghi chú: xxx hoặc note: xxx
  if(cmdLow.match(/^(ghi chu|note|luu y)/)){
    noteText=cmd.replace(/^(ghi chú|ghi chu|note|lưu ý|luu y)[:\s]*/i,'').trim();
    results.push('📝 '+noteText);
    return;
  }
  
  // CK theo brand: malloca ck 35%
  let brandCkMatch=cmdLow.match(/^(\w+)\s+(?:ck|chiet khau|giam|discount)\s*(\d+)\s*%?/);
  if(brandCkMatch){
    let brandName=brandCkMatch[1];let pct=parseFloat(brandCkMatch[2]);
    if(pct>0&&pct<=90){
      let count=0;
      cart.forEach((c,i)=>{
        if(c.priceNum>0){
          let pBrand=(c.brand||'').toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/[đĐ]/g,'d');
          let pName=(c.name||'').toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/[đĐ]/g,'d');
          if(pBrand.indexOf(brandName)!==-1||pName.indexOf(brandName)!==-1){
            let dp=Math.round(c.priceNum*(1-pct/100));
            let el=document.querySelector('.qt-disc[data-idx="'+i+'"]');
            if(el){el.value=dp.toLocaleString('vi-VN');count++;}
          }
        }
      });
      if(count>0){results.push(brandCkMatch[1]+' CK '+pct+'% ('+count+' SP)');applied+=count;}
      return;
    }
  }
  
  // Giá theo mã SP: gov304190 giá 7tr
  let skuPriceMatch=cmdLow.match(/^([a-z0-9_\-]+)\s+(?:gia|price)\s*([\d.,]+)\s*(tr|trieu|k|m|nghin)?/);
  if(skuPriceMatch){
    let skuQuery=skuPriceMatch[1].replace(/[.\-_ ]/g,'');
    let priceVal=parseFloat(skuPriceMatch[2].replace(/\./g,'').replace(',','.'));
    let unit=(skuPriceMatch[3]||'').toLowerCase();
    if(unit==='tr'||unit==='trieu'||unit==='m')priceVal*=1000000;
    else if(unit==='k'||unit==='nghin')priceVal*=1000;
    else if(priceVal>0&&priceVal<500)priceVal*=1000000;
    if(priceVal>0){
      cart.forEach((c,i)=>{
        let cSku=((c.sku||'')+(c.model||c.mod||'')).toLowerCase().replace(/[.\-_ ]/g,'');
        if(cSku.indexOf(skuQuery)!==-1||skuQuery.indexOf(cSku)!==-1){
          let el=document.querySelector('.qt-disc[data-idx="'+i+'"]');
          if(el){el.value=priceVal.toLocaleString('vi-VN');applied++;results.push((c.sku||skuQuery)+' → '+priceVal.toLocaleString('vi-VN')+'đ');}
        }
      });
    }
    return;
  }
  
  // CK tất cả: ck 30%
  let globalCkMatch=cmdLow.match(/^(?:ck|chiet khau|giam|discount)\s*(\d+)\s*%/);
  if(globalCkMatch){
    let pct=parseFloat(globalCkMatch[1]);
    if(pct>0&&pct<=90){
      let count=0;
      cart.forEach((c,i)=>{
        if(c.priceNum>0){
          let dp=Math.round(c.priceNum*(1-pct/100));
          let el=document.querySelector('.qt-disc[data-idx="'+i+'"]');
          if(el){el.value=dp.toLocaleString('vi-VN');count++;}
        }
      });
      results.push('CK '+pct+'% tất cả ('+count+' SP)');applied+=count;
    }
    return;
  }
  
  // CỌC: cọc 5tr, đặt cọc 30%
  let cocMatch=cmdLow.match(/(?:coc|dat coc|deposit)\s*([\d.,]+)\s*(k|tr|trieu|%|m)?/);
  if(cocMatch){
    let cocVal=parseFloat(cocMatch[1].replace(/\./g,'').replace(',','.'));
    let cu=(cocMatch[2]||'').toLowerCase();
    if(cu==='%'){depositPct=cocVal;results.push('Cọc: '+cocVal+'%');}
    else{
      if(cu==='k')cocVal*=1000;else if(cu==='tr'||cu==='trieu'||cu==='m')cocVal*=1000000;
      else if(cocVal>0&&cocVal<500)cocVal*=1000000;
      deposit=cocVal;results.push('Cọc: '+cocVal.toLocaleString('vi-VN')+'đ');
    }
    return;
  }
  
  // PHỤ PHÍ: giao hàng 200k, lắp đặt 500k, phí khác 100k, vận chuyển 300k
  let feeMatch=cmdLow.match(/^(giao hang|giao|lap dat|lap|van chuyen|ship|phi giao|phi lap|phi khac|phu phi|phi)\s*([\d.,]+)\s*(k|tr|trieu|m|nghin)?/);
  if(feeMatch){
    let feeAmt=parseFloat(feeMatch[2].replace(/\./g,'').replace(',','.'));
    let u=(feeMatch[3]||'').toLowerCase();
    if(u==='k'||u==='nghin')feeAmt*=1000;
    else if(u==='tr'||u==='trieu'||u==='m')feeAmt*=1000000;
    else if(feeAmt>0&&feeAmt<500)feeAmt*=1000;
    // Label
    let labelMap={'giao hang':'Phí giao hàng','giao':'Phí giao hàng','lap dat':'Phí lắp đặt','lap':'Phí lắp đặt','van chuyen':'Phí vận chuyển','ship':'Phí vận chuyển','phi giao':'Phí giao hàng','phi lap':'Phí lắp đặt','phi khac':'Phí khác','phu phi':'Phụ phí','phi':'Phụ phí'};
    let feeLabel=labelMap[feeMatch[1]]||'Phụ phí';
    fees.push({label:feeLabel,amount:feeAmt});
    results.push(feeLabel+': +'+feeAmt.toLocaleString('vi-VN')+'đ');
    return;
  }
  
  // Fallback: any line with number → treat as fee
  let numMatch=cmdLow.match(/([\d.,]+)\s*(k|tr|trieu|m|nghin)?/);
  if(numMatch){
    let amt=parseFloat(numMatch[1].replace(/\./g,'').replace(',','.'));
    let u2=(numMatch[2]||'').toLowerCase();
    if(u2==='k'||u2==='nghin')amt*=1000;
    else if(u2==='tr'||u2==='trieu'||u2==='m')amt*=1000000;
    if(amt>0){
      let lb=cmdLow.replace(numMatch[0],'').replace(/[^a-z\s]/g,'').trim();
      if(!lb||lb.length<2)lb='Phụ phí';
      else lb=lb.charAt(0).toUpperCase()+lb.slice(1);
      fees.push({label:lb,amount:amt});
      results.push(lb+': +'+amt.toLocaleString('vi-VN')+'đ');
    }
    return;
  }
});

updateQuoteTotal();

// Render fees + cọc + ghi chú vào bảng
document.querySelectorAll('.qt-extra-row').forEach(r=>r.remove());
let tfoot=document.querySelector('.quote-table tfoot');
if(tfoot){
  let totalCell=document.getElementById('quoteTotalCell');
  let totalVal=parseInt((totalCell?totalCell.textContent:'0').replace(/\D/g,''))||0;
  let insertBefore=tfoot.querySelector('.quote-total-row');
  
  // Thêm dòng phụ phí
  fees.forEach(f=>{
    let row=document.createElement('tr');row.className='qt-extra-row';
    row.innerHTML='<td colspan="8" style="text-align:right;padding:6px 12px;font-size:.82rem;color:#92400e;font-weight:600">'+f.label+':</td><td class="qt-price" style="font-size:.82rem;color:#e53935;font-weight:700">+'+f.amount.toLocaleString('vi-VN')+'đ</td><td></td>';
    if(insertBefore)tfoot.insertBefore(row,insertBefore);else tfoot.appendChild(row);
    totalVal+=f.amount;
  });
  
  // Cập nhật tổng
  if(fees.length&&totalCell)totalCell.textContent=totalVal.toLocaleString('vi-VN')+'đ';
  
  // Cọc
  if(deposit>0||depositPct>0){
    let cocAmt=deposit>0?deposit:Math.round(totalVal*depositPct/100);
    let cocRow=document.createElement('tr');cocRow.className='qt-extra-row';
    cocRow.innerHTML='<td colspan="8" style="text-align:right;padding:6px 12px;font-size:.82rem;color:#2563eb;font-weight:600">Đặt cọc'+(depositPct>0?' ('+depositPct+'%)':'')+':</td><td class="qt-price" style="font-size:.82rem;color:#2563eb;font-weight:700">'+cocAmt.toLocaleString('vi-VN')+'đ</td><td></td>';
    tfoot.appendChild(cocRow);
    let remainRow=document.createElement('tr');remainRow.className='qt-extra-row';
    remainRow.innerHTML='<td colspan="8" style="text-align:right;padding:6px 12px;font-size:.82rem;color:#059669;font-weight:600">Còn lại:</td><td class="qt-price" style="font-size:.82rem;color:#059669;font-weight:700">'+(totalVal-cocAmt).toLocaleString('vi-VN')+'đ</td><td></td>';
    tfoot.appendChild(remainRow);
  }
}

// Điền ghi chú vào ô ghi chú (nếu có)
if(noteText){
  let noteInputs=document.querySelectorAll('.qt-note,textarea[placeholder*="ghi chú"],input[placeholder*="ghi chú"]');
  noteInputs.forEach(el=>{el.value=noteText;});
  // Also try quote table note cells
  document.querySelectorAll('input.qt-note,textarea.qt-note').forEach(el=>{if(!el.value)el.value=noteText;});
}

if(statusEl){
  if(results.length)statusEl.innerHTML='✅ '+results.join(' | ');
  else statusEl.textContent='⚠️ Không nhận diện. VD: Malloca ck 35%, giao hàng 200k, lắp 500k, cọc 5tr, ghi chú: giao thứ 7';
}
}


function renderQuoteTable(){
let tbody=document.getElementById('quoteTableBody');
let locked=!_quoteUnlocked;
tbody.innerHTML=cart.map((c,i)=>{
let product=D[c.idx]||{};
let model=product.model||product.sku||'';
let specs='';
if(product.specs&&Object.keys(product.specs).length){
specs=Object.entries(product.specs).slice(0,3).map(([k,v])=>k+': '+v).join(', ');
}
let lineTotal=c.priceNum*c.qty;
let discStyle='width:80px;padding:5px 6px;border:1.5px solid var(--gl);border-radius:6px;font-size:.78rem;text-align:right;font-family:inherit;outline:none;';
discStyle+=locked?'background:var(--l);cursor:not-allowed':'background:#fff';
return `<tr>
<td style="text-align:center">${i+1}</td>
<td><img class="qt-img" src="${c.image}" referrerpolicy="no-referrer" alt="${c.name}" onerror="this.style.display='none'" style="width:72px;height:72px;object-fit:contain"></td>
<td class="qt-name">${c.name}</td>
<td style="text-align:center">${model}</td>
<td style="font-size:.72rem;color:var(--g);max-width:160px">${specs}</td>
<td style="text-align:center">${c.qty}</td>
<td class="qt-price">${c.priceNum>0?c.priceNum.toLocaleString('vi-VN')+'đ':'Liên hệ'}</td>
<td><input class="qt-disc" data-idx="${i}" value="${c.priceNum>0?c.priceNum.toLocaleString('vi-VN'):''}" oninput="updateQuoteTotal()" ${locked?'disabled':''} style="${discStyle}"></td>
<td class="qt-price qt-linetotal" data-idx="${i}">${lineTotal>0?lineTotal.toLocaleString('vi-VN')+'đ':''}</td>
<td><input class="qt-note" data-idx="${i}" placeholder="Ghi chú"></td>
</tr>`;
}).join('');
updateQuoteTotal();
}

function updateQuoteTotal(){
let total=0;
cart.forEach((c,i)=>{
let discInput=document.querySelector(`.qt-disc[data-idx="${i}"]`);
let discVal=discInput?(parseInt(discInput.value.replace(/\D/g,''))||0)||0:c.priceNum;
let lineTotal=discVal*c.qty;
let cell=document.querySelector(`.qt-linetotal[data-idx="${i}"]`);
if(cell)cell.textContent=lineTotal>0?lineTotal.toLocaleString('vi-VN')+'đ':'';
total+=lineTotal;
});
document.getElementById('quoteTotalCell').textContent=total.toLocaleString('vi-VN')+'đ';
}


function vaiQuoteDimKey(k,v){let t=nVN(String(k||'')+' '+String(v||''));return /kich thuoc|dimension|size|rong|ngang|dai|sau|cao|height|width|depth|cut.?out|cat da|lo da|lap noi|lap am|am ban|lot long|phu bi|khoang tu|mat canh|quy cach|r\s*[x=]|w\s*[x=]|d\s*[x=]|h\s*[x=]/.test(t)}
function vaiQuoteDimSummary(specs,limit=900){let parts=[],seen=new Set();function add(k,v){if(!k||v==null||v==='')return;let t=String(k)+': '+String(v),key=nVN(t).replace(/[^a-z0-9]/g,'');if(seen.has(key))return;seen.add(key);parts.push(t)};if(specs&&typeof specs==='object'){let e=Object.entries(specs);e.filter(x=>vaiQuoteDimKey(x[0],x[1])).forEach(x=>add(x[0],x[1]));e.filter(x=>!vaiQuoteDimKey(x[0],x[1])).slice(0,8).forEach(x=>add(x[0],x[1]));}else if(specs){String(specs).split(/[;\n]+/).filter(Boolean).sort((a,b)=>(vaiQuoteDimKey(b,'')?1:0)-(vaiQuoteDimKey(a,'')?1:0)).forEach(x=>{let key=nVN(x).replace(/[^a-z0-9]/g,'');if(!seen.has(key)){seen.add(key);parts.push(x.trim())}})}return parts.join('; ').slice(0,limit)}
function getQuoteData(){
let customer={
name:document.getElementById('qcName').value||'',
phone:document.getElementById('qcPhone').value||'',
email:document.getElementById('qcEmail').value||'',
addr:document.getElementById('qcAddr').value||'',
orderCode:document.getElementById('qcCompany').value||'',
date:document.getElementById('qcDate').value||new Date().toISOString().split('T')[0]
};
let items=cart.map((c,i)=>{
let product=D[c.idx]||{};
let discInput=document.querySelector(`.qt-disc[data-idx="${i}"]`);
let noteInput=document.querySelector(`.qt-note[data-idx="${i}"]`);
let discPrice=discInput?parseInt(discInput.value.replace(/\D/g,''))||0:c.priceNum;
return{
stt:i+1, name:c.name, model:product.model||product.sku||'',
specs:vaiQuoteDimSummary(product.specs||{},900)||(product.summary||product.desc||'').slice(0,900),
image:c.image, qty:c.qty, price:c.priceNum, discPrice:discPrice,
total:discPrice*c.qty, note:noteInput?noteInput.value:''
};
});
let grandTotal=items.reduce((s,it)=>s+it.total,0);
return{customer,items,grandTotal};
}

function fmtVND(n){return n>0?n.toLocaleString('vi-VN')+'đ':'Liên hệ'}

// ===== EXCEL EXPORT WITH REAL NUMBERS + FORMULAS v2 =====
function _vaiExcelParseExtras(){
  let txt='';
  document.querySelectorAll('input,textarea').forEach(el=>{
    let ph=(el.placeholder||'').toLowerCase();
    let v=(el.value||'').trim();
    if(!v)return;
    if(v.toUpperCase().replace(/[\s.]/g,'')==='VAISTUDIO')return;
    if(ph.includes('yêu cầu')||ph.includes('yeu cau')||ph.includes('chiết khấu')||ph.includes('chiet khau')||ph.includes('ghi chú')||ph.includes('ghi chu'))txt+=(txt?'\n':'')+v;
  });
  let out={fees:[],deposit:0,discountPercent:0,notes:[]};
  if(!txt)return out;
  txt.split(/[,;\n]+/).forEach(line=>{
    line=(line||'').trim();if(!line)return;
    let lo=line.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/[đĐ]/g,'d');
    let ck=lo.match(/^(ck|chiet khau|giam|discount)\s*([\d.,]+)\s*%?/);
    if(ck){let v=parseFloat(ck[2].replace(/\./g,'').replace(',','.'));if(v>0&&v<=100)out.discountPercent=v;return;}
    if(/coc|dat coc|deposit/.test(lo)){
      let m=lo.match(/([\d.,]+)\s*(k|nghin|tr|trieu|m|%)?/);
      if(m){let a=parseFloat(m[1].replace(/\./g,'').replace(',','.'));let u=(m[2]||'').toLowerCase();if(u==='k'||u==='nghin')a*=1000;else if(u==='tr'||u==='trieu'||u==='m')a*=1000000;out.deposit=a||0;}
      return;
    }
    let fm=lo.match(/^(giao hang|giao|ship|van chuyen|lap dat|lap|phi giao|phi lap|phi khac|phu phi|phi|boc xep|boc|xep)\s*([\d.,]+)\s*(k|nghin|tr|trieu|m)?/);
    if(fm){
      let a=parseFloat(fm[2].replace(/\./g,'').replace(',','.'));let u=(fm[3]||'').toLowerCase();
      if(u==='k'||u==='nghin')a*=1000;else if(u==='tr'||u==='trieu'||u==='m')a*=1000000;else if(a>0&&a<500)a*=1000;
      let labelMap={'giao hang':'Phí giao hàng','giao':'Phí giao hàng','ship':'Phí giao hàng','van chuyen':'Phí vận chuyển','lap dat':'Phí lắp đặt','lap':'Phí lắp đặt','phi giao':'Phí giao hàng','phi lap':'Phí lắp đặt','phi khac':'Phí khác','phu phi':'Phụ phí','phi':'Phụ phí','boc xep':'Phí bốc xếp','boc':'Phí bốc xếp','xep':'Phí bốc xếp'};
      out.fees.push({label:labelMap[fm[1]]||'Phụ phí',amount:a||0});return;
    }
    out.notes.push(line);
  });
  return out;
}

async function exportExcel(){
let qd=getQuoteData();
let extras=_vaiExcelParseExtras();
let wb=new ExcelJS.Workbook();
wb.creator='V.AI STUDIO';
let ws=wb.addWorksheet('Báo Giá');
let MONEY_FMT='#,##0"đ"', NUM_FMT='#,##0';
ws.columns=[
{key:'stt',width:6},{key:'name',width:32},{key:'model',width:16},{key:'specs',width:28},
{key:'image',width:18},{key:'qty',width:8},{key:'price',width:16},{key:'disc',width:16},
{key:'total',width:18},{key:'note',width:18}
];
// Header
ws.mergeCells('A1','J1');
let h1=ws.getCell('A1');
h1.value='V.AI STUDIO - Niềm tin khách hàng là tài sản của chúng tôi';
h1.font={name:'Arial',bold:true,size:14,color:{argb:'FF003F62'}};
h1.alignment={horizontal:'center',vertical:'middle'};
h1.fill={type:'pattern',pattern:'solid',fgColor:{argb:'FFF0F7FF'}};
ws.getRow(1).height=30;
ws.mergeCells('A2','J2');
let h2=ws.getCell('A2');
h2.value='BẢNG BÁO GIÁ';
h2.font={name:'Arial',bold:true,size:16,color:{argb:'FFDB9815'}};
h2.alignment={horizontal:'center',vertical:'middle'};
ws.getRow(2).height=28;

// Customer info
let r=4;
let ci=[['Khách hàng:',qd.customer.name],['SĐT:',qd.customer.phone],['Email:',qd.customer.email],
['Địa chỉ:',qd.customer.addr],['Mã đơn hàng:',qd.customer.orderCode],['Ngày:',qd.customer.date]];
ci.forEach(pair=>{ws.getCell('A'+r).value=pair[0];ws.getCell('A'+r).font={bold:true,size:10};ws.getCell('B'+r).value=pair[1]||'';ws.getCell('B'+r).font={size:10};r++;});
r++;

// Table header
let headers=['STT','Tên sản phẩm','Mã SP','Thông tin SP','Hình ảnh','SL','Đơn giá','Đơn giá CK','Thành tiền','Ghi chú'];
let headerRow=ws.getRow(r);
headers.forEach((h,i)=>{headerRow.getCell(i+1).value=h});
headerRow.height=26;
headerRow.eachCell(cell=>{cell.font={bold:true,color:{argb:'FFFFFFFF'},name:'Arial',size:9};cell.fill={type:'pattern',pattern:'solid',fgColor:{argb:'FF003F62'}};cell.border={top:{style:'thin'},left:{style:'thin'},bottom:{style:'thin'},right:{style:'thin'}};cell.alignment={horizontal:'center',vertical:'middle',wrapText:true};});
r++;
let dataStartR=r;

// Determine discount: explicit CK35% wins; otherwise infer ratio from Giá CK/Đơn giá.
let ckPct=Number(extras.discountPercent||0);
if(!(ckPct>0&&ckPct<=100)&&qd.items.length>0&&qd.items[0].price>0){
  let ratio=(Number(qd.items[0].discPrice||qd.items[0].price)||0)/(Number(qd.items[0].price)||1);
  let allSameRatio=qd.items.every(it=>!it.price||Math.abs((Number(it.discPrice||it.price)/Number(it.price))-ratio)<0.005);
  if(allSameRatio&&ratio<1&&ratio>0)ckPct=Math.round((1-ratio)*100);
}

qd.items.forEach((item,idx)=>{
let row=ws.getRow(r);row.height=64;
row.getCell(1).value=Number(item.stt||idx+1);row.getCell(1).numFmt=NUM_FMT;row.getCell(1).alignment={horizontal:'center',vertical:'middle'};row.getCell(1).font={size:10};
row.getCell(2).value=item.name||'';row.getCell(2).alignment={vertical:'middle',wrapText:true};row.getCell(2).font={size:10,bold:true,color:{argb:'FF1A1A1A'}};
row.getCell(3).value=item.model||'';row.getCell(3).alignment={horizontal:'center',vertical:'middle'};row.getCell(3).font={size:9,color:{argb:'FF003F62'}};
row.getCell(4).value=item.specs||'';row.getCell(4).alignment={vertical:'middle',wrapText:true};row.getCell(4).font={size:8,color:{argb:'FF888888'}};
row.getCell(5).value='';row.getCell(5).alignment={horizontal:'center',vertical:'middle'};
try{let imgEl=document.querySelectorAll('.qt-img')[idx];if(imgEl&&imgEl.complete&&imgEl.naturalWidth>0){let cvs=document.createElement('canvas');cvs.width=Math.min(imgEl.naturalWidth,120);cvs.height=Math.min(imgEl.naturalHeight,120);let ctx=cvs.getContext('2d');ctx.drawImage(imgEl,0,0,cvs.width,cvs.height);let b64=cvs.toDataURL('image/jpeg',0.7).split(',')[1];let imgId=wb.addImage({base64:b64,extension:'jpeg'});ws.addImage(imgId,{tl:{col:4,row:r-1},ext:{width:70,height:70}});}}catch(ie){}
row.getCell(6).value=Number(item.qty||1);row.getCell(6).numFmt=NUM_FMT;row.getCell(6).alignment={horizontal:'center',vertical:'middle'};row.getCell(6).font={size:10,bold:true};
row.getCell(7).value=Number(item.price)||0;row.getCell(7).numFmt=MONEY_FMT;row.getCell(7).alignment={horizontal:'right',vertical:'middle'};row.getCell(7).font={size:10};
let cH=row.getCell(8);
if(ckPct>0&&ckPct<100){let factor=Number((1-ckPct/100).toFixed(4));cH.value={formula:`G${r}*${factor}`,result:Math.round((Number(item.price)||0)*factor)};}
else{cH.value=Number(item.discPrice)||Number(item.price)||0;}
cH.numFmt=MONEY_FMT;cH.alignment={horizontal:'right',vertical:'middle'};if((Number(item.discPrice)||0)<(Number(item.price)||0)){cH.font={size:10,color:{argb:'FFDC3545'},bold:true}}else{cH.font={size:10}}
let cI=row.getCell(9);cI.value={formula:`F${r}*H${r}`,result:(Number(item.qty||1))*(Number(item.discPrice)||Number(item.price)||0)};cI.numFmt=MONEY_FMT;cI.alignment={horizontal:'right',vertical:'middle'};cI.font={size:10,bold:true,color:{argb:'FF003F62'}};
row.getCell(10).value=item.note||'';row.getCell(10).alignment={vertical:'middle',wrapText:true};row.getCell(10).font={size:9};
for(let c=1;c<=10;c++){row.getCell(c).border={top:{style:'thin',color:{argb:'FFD0D5DD'}},left:{style:'thin',color:{argb:'FFD0D5DD'}},bottom:{style:'thin',color:{argb:'FFD0D5DD'}},right:{style:'thin',color:{argb:'FFD0D5DD'}}};}
if((idx+1)%2===0){for(let c=1;c<=10;c++){row.getCell(c).fill={type:'pattern',pattern:'solid',fgColor:{argb:'FFF8FAFC'}}}}
r++;
});
let dataEndR=r-1;
ws.getColumn(6).numFmt=NUM_FMT;ws.getColumn(7).numFmt=MONEY_FMT;ws.getColumn(8).numFmt=MONEY_FMT;ws.getColumn(9).numFmt=MONEY_FMT;
// PHỤ PHÍ rows — included in TỔNG CỘNG
let totalFormulaParts=[`SUM(I${dataStartR}:I${dataEndR})`];
(extras.fees||[]).forEach(f=>{
  ws.mergeCells(r,1,r,8);
  ws.getCell('A'+r).value='⊕ '+(f.label||'Phụ phí');ws.getCell('A'+r).font={size:10,color:{argb:'FF92400E'}};ws.getCell('A'+r).alignment={horizontal:'right',vertical:'middle'};
  ws.getCell('I'+r).value=Number(f.amount||0);ws.getCell('I'+r).numFmt=MONEY_FMT;ws.getCell('I'+r).font={bold:true,size:10,color:{argb:'FF92400E'}};ws.getCell('I'+r).alignment={horizontal:'right',vertical:'middle'};
  for(let c=1;c<=10;c++){ws.getRow(r).getCell(c).fill={type:'pattern',pattern:'solid',fgColor:{argb:'FFFFFBEB'}};ws.getRow(r).getCell(c).border={top:{style:'thin',color:{argb:'FFD0D5DD'}},bottom:{style:'thin',color:{argb:'FFD0D5DD'}}};}
  totalFormulaParts.push(`I${r}`);r++;
});

// TỔNG CỘNG = SUM sản phẩm + phụ phí nếu có
let totalR=r;
ws.mergeCells(totalR,1,totalR,8);
ws.getCell('A'+totalR).value='TỔNG CỘNG:';ws.getCell('A'+totalR).font={bold:true,size:12,color:{argb:'FFFFFFFF'}};ws.getCell('A'+totalR).alignment={horizontal:'right',vertical:'middle'};
// Tổng cộng số lượng nằm CÙNG DÒNG tổng cộng, tại cột SL (F)
ws.getCell('F'+totalR).value={formula:`SUM(F${dataStartR}:F${dataEndR})`,result:qd.items.reduce((s,it)=>s+Number(it.qty||1),0)};
ws.getCell('F'+totalR).numFmt=NUM_FMT;ws.getCell('F'+totalR).font={bold:true,size:12,color:{argb:'FFFFFFFF'}};ws.getCell('F'+totalR).alignment={horizontal:'center',vertical:'middle'};
ws.getCell('I'+totalR).value={formula:totalFormulaParts.join('+'),result:(qd.items.reduce((s,it)=>s+(Number(it.qty||1))*(Number(it.discPrice)||Number(it.price)||0),0)+(extras.fees||[]).reduce((s,f)=>s+Number(f.amount||0),0))};
ws.getCell('I'+totalR).numFmt=MONEY_FMT;ws.getCell('I'+totalR).font={bold:true,size:13,color:{argb:'FFFFFFFF'}};ws.getCell('I'+totalR).alignment={horizontal:'right',vertical:'middle'};
for(let c=1;c<=10;c++){ws.getRow(totalR).getCell(c).fill={type:'pattern',pattern:'solid',fgColor:{argb:'FF003F62'}};ws.getRow(totalR).getCell(c).border={top:{style:'medium',color:{argb:'FF003F62'}},bottom:{style:'thin',color:{argb:'FF003F62'}}};}
ws.getRow(totalR).height=30;r++;

// CỌC if có
let depositR=null;
if(Number(extras.deposit||0)>0){
  depositR=r;ws.mergeCells(r,1,r,8);
  ws.getCell('A'+r).value='Đã cọc:';ws.getCell('A'+r).font={bold:true,size:11,color:{argb:'FF166534'}};ws.getCell('A'+r).alignment={horizontal:'right',vertical:'middle'};
  ws.getCell('I'+r).value=Number(extras.deposit||0);ws.getCell('I'+r).numFmt=MONEY_FMT;ws.getCell('I'+r).font={bold:true,size:11,color:{argb:'FF166534'}};ws.getCell('I'+r).alignment={horizontal:'right',vertical:'middle'};
  for(let c=1;c<=10;c++){ws.getRow(r).getCell(c).fill={type:'pattern',pattern:'solid',fgColor:{argb:'FFF0FDF4'}};ws.getRow(r).getCell(c).border={top:{style:'thin',color:{argb:'FFD0D5DD'}},bottom:{style:'thin',color:{argb:'FFD0D5DD'}}};}
  r++;
  ws.mergeCells(r,1,r,8);
  ws.getCell('A'+r).value='Còn lại:';ws.getCell('A'+r).font={bold:true,size:11,color:{argb:'FFDC2626'}};ws.getCell('A'+r).alignment={horizontal:'right',vertical:'middle'};
  ws.getCell('I'+r).value={formula:`MAX(I${totalR}-I${depositR},0)`,result:Math.max((qd.items.reduce((s,it)=>s+(Number(it.qty||1))*(Number(it.discPrice)||Number(it.price)||0),0)+(extras.fees||[]).reduce((s,f)=>s+Number(f.amount||0),0))-Number(extras.deposit||0),0)};
  ws.getCell('I'+r).numFmt=MONEY_FMT;ws.getCell('I'+r).font={bold:true,size:12,color:{argb:'FFDC2626'}};ws.getCell('I'+r).alignment={horizontal:'right',vertical:'middle'};
  for(let c=1;c<=10;c++){ws.getRow(r).getCell(c).fill={type:'pattern',pattern:'solid',fgColor:{argb:'FFFEF2F2'}};ws.getRow(r).getCell(c).border={top:{style:'thin',color:{argb:'FFD0D5DD'}},bottom:{style:'thin',color:{argb:'FFD0D5DD'}}};}
  r++;
}

// Optional notes
if(extras.notes&&extras.notes.length){ws.mergeCells(r,1,r,10);ws.getCell('A'+r).value='📝 Ghi chú: '+extras.notes.join('; ');ws.getCell('A'+r).font={italic:true,size:9,color:{argb:'FF166534'}};ws.getCell('A'+r).alignment={wrapText:true};r++;}
r++;
ws.mergeCells(r,1,r,10);ws.getCell('A'+r).value='📌 Miễn phí giao hàng trong TPHCM. Giá đã bao gồm VAT (Hỗ trợ trị giá đơn hàng VAT xuất theo đúng số tiền khác mã).';ws.getCell('A'+r).font={italic:true,size:9,color:{argb:'FF888888'}};ws.getCell('A'+r).alignment={wrapText:true};r++;
ws.mergeCells(r,1,r,10);ws.getCell('A'+r).value='💬 Zalo: 0981 873 395 | 0918 258 385';ws.getCell('A'+r).font={italic:true,size:9,color:{argb:'FF888888'}};ws.getCell('A'+r).alignment={wrapText:true};

wb.calcProperties.fullCalcOnLoad=true;
let buf=await wb.xlsx.writeBuffer();
let blob=new Blob([buf],{type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'});
let url=URL.createObjectURL(blob);
let a=document.createElement('a');a.href=url;a.download=(qd.customer.orderCode||'BG')+'.xlsx';a.click();URL.revokeObjectURL(url);
showToast('Đã xuất file Excel số + công thức!');
}


// ===== PDF EXPORT (html2canvas for Vietnamese) =====
async function exportPDF(){
let qd=getQuoteData();
// Build a hidden HTML table for rendering
let div=document.createElement('div');
div.id='pdfRender';
div.style.cssText='position:fixed;top:-9999px;left:0;width:1100px;background:#fff;padding:40px;font-family:Inter,Arial,sans-serif';
let itemsHtml=qd.items.map(it=>`<tr style="border-bottom:1px solid #e2e8f0">
<td style="padding:10px 6px;text-align:center;font-size:13px">${it.stt}</td>
<td style="padding:10px 6px"><img src="${it.image}" style="width:80px;height:80px;object-fit:contain;border-radius:6px;border:1px solid #e2e8f0;background:#f8fafc" onerror="this.style.display='none'"></td>
<td style="padding:10px 6px;font-size:12px;font-weight:600">${it.name}</td>
<td style="padding:10px 6px;text-align:center;font-size:12px">${it.model}</td>
<td style="padding:10px 6px;font-size:11px;color:#64748b;max-width:180px">${it.specs}</td>
<td style="padding:10px 6px;text-align:center;font-size:13px">${it.qty}</td>
<td style="padding:10px 6px;text-align:right;font-size:12px">${fmtVND(it.price)}</td>
<td style="padding:10px 6px;text-align:right;font-size:12px;${it.discPrice<it.price?'color:#dc3545;font-weight:700':''}">${fmtVND(it.discPrice)}</td>
<td style="padding:10px 6px;text-align:right;font-size:13px;font-weight:700">${fmtVND(it.total)}</td>
<td style="padding:10px 6px;font-size:11px">${it.note}</td>
</tr>`).join('');

div.innerHTML=`
<div style="text-align:center;margin-bottom:20px">
<img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_200.png" alt="V.AI STUDIO" style="height:40px;object-fit:contain">
<div style="font-size:11px;color:#64748b;letter-spacing:2px;font-style:italic">❝ Niềm tin khách hàng là tài sản của chúng tôi ❞</div>
<div style="font-size:20px;font-weight:800;color:#db9815;margin-top:10px">BẢNG BÁO GIÁ</div>
</div>
<div style="display:flex;justify-content:space-between;margin-bottom:20px;font-size:12px;color:#0f172a">
<div><strong>Khách hàng:</strong> ${qd.customer.name}<br><strong>SĐT:</strong> ${qd.customer.phone}<br><strong>Email:</strong> ${qd.customer.email}<br><strong>Địa chỉ:</strong> ${qd.customer.addr}</div>
<div style="text-align:right"><strong>Mã đơn hàng:</strong> ${qd.customer.orderCode}<br><strong>Ngày:</strong> ${qd.customer.date}<br><strong>Zalo:</strong> <a href="https://zalo.me/0981873395" target="_blank">0981 873 395</a></div>
</div>
<table style="width:100%;border-collapse:collapse">
<thead><tr style="background:#003f62;color:#fff">
<th style="padding:10px 6px;font-size:11px">STT</th><th style="padding:10px 6px;font-size:11px">Hình ảnh</th><th style="padding:10px 6px;font-size:11px;text-align:left">Tên sản phẩm</th><th style="padding:10px 6px;font-size:11px">Mã SP</th><th style="padding:10px 6px;font-size:11px">Thông tin SP</th><th style="padding:10px 6px;font-size:11px">SL</th><th style="padding:10px 6px;font-size:11px">Đơn giá</th><th style="padding:10px 6px;font-size:11px">Đơn giá CK</th><th style="padding:10px 6px;font-size:11px">Thành tiền</th><th style="padding:10px 6px;font-size:11px">Ghi chú</th>
</tr></thead>
<tbody>${itemsHtml}</tbody>
<tfoot><tr style="border-top:3px solid #003f62">
<td colspan="8" style="padding:12px 6px;text-align:right;font-size:14px;font-weight:800;color:#003f62">TỔNG CỘNG:</td>
<td style="padding:12px 6px;text-align:right;font-size:15px;font-weight:900;color:#003f62">${fmtVND(qd.grandTotal)}</td><td></td>
</tr></tfoot>
</table>
<div style="margin-top:20px;font-size:11px;color:#64748b;font-style:italic">
Miễn phí giao hàng trong TPHCM. | Giá đã bao gồm VAT (Hỗ trợ trị giá đơn hàng VAT xuất theo đúng số tiền khác mã).
</div>`;

document.body.appendChild(div);
// Wait for images and fonts
await new Promise(r=>setTimeout(r,500));

try{
let canvas=await html2canvas(div,{scale:2,useCORS:true,allowTaint:true,logging:false});
let imgData=canvas.toDataURL('image/jpeg',0.95);
let {jsPDF}=window.jspdf;
let pdf=new jsPDF({orientation:'landscape',unit:'mm',format:'a4'});
let pdfW=pdf.internal.pageSize.getWidth();
let pdfH=pdf.internal.pageSize.getHeight();
let imgW=canvas.width;let imgH=canvas.height;
let ratio=pdfW/imgW*2;// scale:2 correction
let totalH=imgH*ratio/2;
let pageH=pdfH-10;let y=5;let srcY=0;
let sliceH=pageH/ratio*2;
// Multi-page support
while(srcY<imgH){
if(srcY>0)pdf.addPage();
let clipCanvas=document.createElement('canvas');
clipCanvas.width=imgW;clipCanvas.height=Math.min(sliceH,imgH-srcY);
clipCanvas.getContext('2d').drawImage(canvas,0,srcY,imgW,clipCanvas.height,0,0,imgW,clipCanvas.height);
let sliceData=clipCanvas.toDataURL('image/jpeg',0.95);
let sliceRatio=pdfW/imgW;
pdf.addImage(sliceData,'JPEG',0,y,pdfW,clipCanvas.height*sliceRatio);
srcY+=sliceH;
}
pdf.save((qd.customer.orderCode||'BG')+'.pdf');
showToast('Đã xuất file PDF!');
}catch(e){console.error('PDF error:',e);showToast('Lỗi xuất PDF. Vui lòng thử lại.')}
div.remove();
}

function printQuotation(){
exportPDF();// Reuse PDF then user can print from PDF viewer
}

// Init on load
function init(){buildCats();buildPrices();buildBrands();render();
// Try path-based routing first, then hash-based
if(!parseCurrentPath()){parseUrlParams();render();}
}
// Handle ?quote= parameter — auto-add products to cart + open quotation
(function(){
  let params = new URLSearchParams(location.search);
  let quoteParam = params.get('quote');
  if(quoteParam){
    let skus = quoteParam.split(',').map(s=>s.trim()).filter(Boolean);
    // Wait for products to load
    let waitForD = setInterval(function(){
      if(typeof D !== 'undefined' && D.length > 0 && typeof addToCart === 'function'){
        clearInterval(waitForD);
        skus.forEach(function(sku){
          let skuClean = sku.toLowerCase().replace(/[.\- ]/g,'');
          let idx = D.findIndex(function(p){
            return (p.sku||'').toLowerCase().replace(/[.\- ]/g,'') === skuClean ||
                   (p.model||'').toLowerCase().replace(/[.\- ]/g,'') === skuClean;
          });
          if(idx >= 0) addToCart(idx);
        });
        // Open quotation after adding
        setTimeout(function(){
          if(typeof openQuotation === 'function') openQuotation();
          else if(typeof openCart === 'function') openCart();
        }, 500);
      }
    }, 500);
    setTimeout(function(){ clearInterval(waitForD); }, 15000);
  }
})();
// === QUOTE LINK DECODER ===
// Handles ?q=Base64 links from Zalo bot
(function(){
  var params=new URLSearchParams(location.search);
  var q=params.get('q');
  if(!q)return;
  try{
    // Decode Base64 (add padding back)
    while(q.length%4)q+='=';
    var decoded=atob(q.replace(/-/g,'+').replace(/_/g,'/'));
    // Format: SKU:QTY:PRICE,SKU:QTY:PRICE
    var items=decoded.split(',');
    var waitD=setInterval(function(){
      if(typeof D==='undefined'||!D.length||typeof addToCart!=='function')return;
      clearInterval(waitD);
      items.forEach(function(item){
        var parts=item.split(':');
        var sku=parts[0],qty=parseInt(parts[1])||1,price=parseInt(parts[2])||0;
        var skuClean=sku.toLowerCase().replace(/[.\- ]/g,'');
        var idx=D.findIndex(function(p){
          return (p.sku||'').toLowerCase().replace(/[.\- ]/g,'')===skuClean||
                 (p.model||'').toLowerCase().replace(/[.\- ]/g,'')===skuClean;
        });
        if(idx>=0){
          addToCart(idx);
          // Override price if discounted
          if(price>0&&price!==D[idx].priceNum){
            var c=cart[cart.length-1];
            if(c)c.priceNum=price;
          }
        }
      });
      setTimeout(function(){
        if(typeof openQuotation==='function')openQuotation();
        else if(typeof openCart==='function')openCart();
      },600);
    },500);
    setTimeout(function(){clearInterval(waitD)},15000);
  }catch(e){console.error('Quote decode error:',e)}
})();  
// === ENCRYPTED QUOTE LINK DECODER v2 ===
(function(){
  var KEY='vai2026studio';
  function xorDecrypt(encoded){
    while(encoded.length%4)encoded+='=';
    var raw=atob(encoded.replace(/-/g,'+').replace(/_/g,'/'));
    var result='';
    for(var i=0;i<raw.length;i++)result+=String.fromCharCode(raw.charCodeAt(i)^KEY.charCodeAt(i%KEY.length));
    return result;
  }
  var params=new URLSearchParams(location.search);
  var qk=params.get('qk');
  var qd=params.get('qd');
  var encoded=qk||qd;
  if(!encoded)return;
  var isDiscounted=!!qd;
  try{
    var decoded=xorDecrypt(encoded);
    var items=decoded.split(',');
    var waitD=setInterval(function(){
      if(typeof D==='undefined'||!D.length||typeof addToCart!=='function')return;
      clearInterval(waitD);
      // Clear cart first to avoid duplicates
      if(typeof cart!=='undefined')cart.length=0;
      items.forEach(function(item){
        var parts=item.split(':');
        var sku=parts[0],qty=parseInt(parts[1])||1,price=parseInt(parts[2])||0;
        var skuClean=sku.toLowerCase().replace(/[.\- ]/g,'');
        var idx=D.findIndex(function(p){
          return (p.sku||'').toLowerCase().replace(/[.\- ]/g,'')===skuClean||(p.model||'').toLowerCase().replace(/[.\- ]/g,'')===skuClean||(p.slug||'')===sku;
        });
        if(idx>=0){
          addToCart(idx);
          // Set correct quantity
          var c=cart[cart.length-1];
          if(c)c.qty=qty;
        }
      });
      // Open quotation
      setTimeout(function(){
        if(typeof openQuotation==='function')openQuotation();
        // If discounted, apply prices after table renders
        if(isDiscounted){
          setTimeout(function(){
            items.forEach(function(item,i){
              var parts=item.split(':');
              var price=parseInt(parts[2])||0;
              if(price>0){
                var discInput=document.querySelector('.qt-disc[data-idx="'+i+'"]');
                if(discInput){
                  discInput.value=price.toLocaleString('vi-VN');
                  discInput.dispatchEvent(new Event('input'));
                }
              }
            });
            if(typeof updateQuoteTotal==='function')updateQuoteTotal();
          },800);
        }
      },600);
    },500);
    setTimeout(function(){clearInterval(waitD)},15000);
  }catch(e){console.error('Quote decode:',e)}
})();
document.addEventListener('DOMContentLoaded',()=>{
initCatalogue();
updateCartBadge();
// Auto-open chat if ?chat=1
if(location.search.includes('chat=1')){setTimeout(()=>toggleChat(),500)}
});
function shareQuoteLink(){
  var KEY='vai2026studio';
  var parts=cart.map(function(c,i){
    var disc=document.querySelector('.qt-disc[data-idx="'+i+'"]');
    var price=disc?parseInt(disc.value.replace(/\D/g,''))||c.priceNum:c.priceNum;
    return (c.sku||c.slug)+':'+c.qty+':'+price;
  });
  var dataStr=parts.join(',');
  var encrypted='';
  for(var i=0;i<dataStr.length;i++)encrypted+=String.fromCharCode(dataStr.charCodeAt(i)^KEY.charCodeAt(i%KEY.length));
  var encoded=btoa(encrypted).replace(/\+/g,'-').replace(/\//g,'_').replace(/=+$/,'');
  var link=location.origin+'/?qd='+encoded;
  if(navigator.clipboard)navigator.clipboard.writeText(link);
  prompt('🔗 Link báo giá (đã áp CK) — chia sẻ qua Zalo:',link);
  showToast('✅ Đã copy link báo giá!');
}
async function shareQuoteImage(){
  let qd=getQuoteData();
  // Build same HTML as exportPDF
  let div=document.createElement('div');
  div.style.cssText='position:fixed;top:-9999px;left:0;width:1100px;background:#fff;padding:40px;font-family:Inter,Arial,sans-serif';
  let itemsHtml=qd.items.map(it=>`<tr style="border-bottom:1px solid #e2e8f0">
<td style="padding:10px 6px;text-align:center;font-size:13px">${it.stt}</td>
<td style="padding:10px 6px"><img src="${it.image}" style="width:80px;height:80px;object-fit:contain;border-radius:6px;border:1px solid #e2e8f0;background:#f8fafc" onerror="this.style.display='none'"></td>
<td style="padding:10px 6px;font-size:12px;font-weight:600">${it.name}</td>
<td style="padding:10px 6px;text-align:center;font-size:12px">${it.model}</td>
<td style="padding:10px 6px;font-size:11px;color:#64748b;max-width:180px">${it.specs}</td>
<td style="padding:10px 6px;text-align:center;font-size:13px">${it.qty}</td>
<td style="padding:10px 6px;text-align:right;font-size:12px">${fmtVND(it.price)}</td>
<td style="padding:10px 6px;text-align:right;font-size:12px;${it.discPrice<it.price?'color:#dc3545;font-weight:700':''}">${fmtVND(it.discPrice)}</td>
<td style="padding:10px 6px;text-align:right;font-size:13px;font-weight:700">${fmtVND(it.total)}</td>
<td style="padding:10px 6px;font-size:11px">${it.note}</td>
</tr>`).join('');

  div.innerHTML=`
<div style="text-align:left;margin-bottom:20px">
<img src="https://huggingface.co/spaces/bep40/V.AISTUDIO/resolve/main/logo/logo_200.png" style="height:40px;object-fit:contain;margin:0 auto">
<div style="font-size:11px;color:#64748b;font-style:italic">❝ Niềm tin khách hàng là tài sản của chúng tôi ❞</div>
<div style="font-size:20px;font-weight:800;color:#db9815;margin-top:10px">BẢNG BÁO GIÁ</div>
</div>
<div style="display:flex;justify-content:space-between;margin-bottom:20px;font-size:12px">
<div><strong>Khách hàng:</strong> ${qd.customer.name}<br><strong>SĐT:</strong> ${qd.customer.phone}<br><strong>Email:</strong> ${qd.customer.email}<br><strong>Địa chỉ:</strong> ${qd.customer.addr}</div>
<div style="text-align:right"><strong>Mã đơn hàng:</strong> ${qd.customer.orderCode}<br><strong>Ngày:</strong> ${qd.customer.date}<br><strong>Zalo:</strong> 0981 873 395</div>
</div>
<table style="width:100%;border-collapse:collapse">
<thead><tr style="background:#003f62;color:#fff">
<th style="padding:10px 6px;font-size:11px">STT</th><th style="padding:10px 6px;font-size:11px">Hình</th><th style="padding:10px 6px;font-size:11px;text-align:left">Tên SP</th><th style="padding:10px 6px;font-size:11px"></th><th style="padding:10px 6px;font-size:11px">Thông tin</th><th style="padding:10px 6px;font-size:11px">SL</th><th style="padding:10px 6px;font-size:11px">Đơn giá</th><th style="padding:10px 6px;font-size:11px">Đơn giá CK</th><th style="padding:10px 6px;font-size:11px">Thành tiền</th><th style="padding:10px 6px;font-size:11px">Ghi chú</th>
</tr></thead>
<tbody>${itemsHtml}</tbody>
<tfoot><tr style="border-top:3px solid #003f62"><td colspan="8" style="padding:12px;text-align:right;font-size:14px;font-weight:800;color:#003f62">TỔNG CỘNG:</td><td style="padding:12px;text-align:right;font-size:15px;font-weight:900;color:#003f62">${fmtVND(qd.grandTotal)}</td><td></td></tr></tfoot>
</table>
<div style="margin-top:16px;font-size:11px;color:#64748b;font-style:italic">
Miễn phí giao hàng trong TPHCM. | Giá đã bao gồm VAT.
</div>`;

  document.body.appendChild(div);
  await new Promise(r=>setTimeout(r,500));

  try{
    let canvas=await html2canvas(div,{scale:2,useCORS:true,allowTaint:true,backgroundColor:'#fff'});
    div.remove();
    let blob=await new Promise(r=>canvas.toBlob(r,'image/png'));
    let file=new File([blob],(qd.customer.orderCode||'BG')+'.png',{type:'image/png'});

    // Try native share (mobile)
    if(navigator.share&&navigator.canShare&&navigator.canShare({files:[file]})){
      await navigator.share({title:'Báo giá V.AI STUDIO - '+(qd.customer.orderCode||''),files:[file]});
    }else{
      // Fallback: show preview + download
      let url=URL.createObjectURL(blob);
      let preview=document.createElement('div');
      preview.style.cssText='position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:999;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:16px;backdrop-filter:blur(4px)';
      preview.innerHTML='<div style="background:#fff;border-radius:16px;max-width:90vw;max-height:85vh;overflow:auto;padding:16px"><img src="'+url+'" style="max-width:100%;border-radius:8px"><div style="display:flex;gap:8px;margin-top:12px;justify-content:center"><a href="'+url+'" download="'+(qd.customer.orderCode||'BG')+'.png" style="padding:10px 20px;background:#003f62;color:#fff;border-radius:8px;font-weight:700;font-size:.85rem;text-decoration:none"><i class="fas fa-download"></i> Tải ảnh</a><button onclick="this.closest(\'div[style*=fixed]\').remove()" style="padding:10px 20px;background:#e2e8f0;border:none;border-radius:8px;font-weight:700;font-size:.85rem;cursor:pointer">Đóng</button></div></div>';
      document.body.appendChild(preview);
      showToast('✅ Ảnh báo giá đã sẵn sàng! Tải về rồi gửi qua Zalo.');
    }
  }catch(e){
    div.remove();
    showToast('Lỗi: '+e.message);
  }
}

</script>

<!-- ZALO + AI CHATBOX FAB -->
<a href="https://zalo.me/0981873395" target="_blank" title="Chat Zalo" style="position:fixed;bottom:90px;right:24px;z-index:180;width:50px;height:50px;border-radius:50%;background:#0068FF;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;box-shadow:0 4px 16px rgba(0,104,255,.4);text-decoration:none;transition:all .25s ease"><i class="fas fa-comment-dots"></i></a>
<button class="chat-fab" onclick="toggleChat()" title="Tư Vấn AI"><i class="fas fa-robot"></i></button>
<div class="chat-fab-label">Tư Vấn AI</div>
<div class="chat-overlay2" id="chatOverlay2" onclick="closeChat()"></div>
<div class="chatbox" id="chatbox">
<div class="chat-head">
<div class="chat-head-avatar"><i class="fas fa-robot"></i></div>
<div class="chat-head-info"><h4>Tư Vấn AI</h4><span>Trợ lý thiết bị nhà bếp thông minh</span></div>
<button class="chat-close" onclick="closeChat()" title="Đóng"><i class="fas fa-times"></i></button>
</div>
<div class="chat-body" id="chatBody">
<div class="chat-msg bot">Xin chào anh/chị! 👋 Em là <strong>V.AI STUDIO</strong> — trợ lý tư vấn thiết bị nhà bếp.<br><br>Em có thể giúp anh/chị:<br>🔍 Tìm & so sánh sản phẩm phù hợp<br>💡 Tư vấn theo nhu cầu & ngân sách<br>📋 Giải đáp thông số kỹ thuật<br><br>Anh/chị cần tư vấn gì ạ?<div style="margin-top:8px;padding-top:6px;border-top:1px solid #e2e8f0"><button onclick="shareChatToZalo(this.closest('.chat-msg'))" style="padding:5px 12px;background:#0068FF;color:#fff;border:none;border-radius:6px;font-size:.72rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:5px"><i class="fas fa-comment-dots"></i> Gửi qua Zalo</button></div></div>
</div>
<div class="chat-suggestions" id="chatSuggestions">
<div class="chat-sug" onclick="sendSuggestion(this)">Tư vấn bếp từ cho gia đình</div>
<div class="chat-sug" onclick="sendSuggestion(this)">Máy hút mùi nào tốt?</div>
<div class="chat-sug" onclick="sendSuggestion(this)">Khóa cửa thông minh</div>
<div class="chat-sug" onclick="sendSuggestion(this)">📋 Lên báo giá</div>
<div class="chat-sug" onclick="sendSuggestion(this)">🛒 Giỏ hàng</div>
</div>
<div class="chat-foot">
<textarea class="chat-input" id="chatInput" placeholder="Nhập câu hỏi..." rows="1" onkeydown="if(event.key==='Enter'&&!event.shiftKey){event.preventDefault();sendChat()}"></textarea>
<button class="chat-send" id="chatSend" onclick="sendChat()"><i class="fas fa-paper-plane"></i></button>
</div>
</div>

<!-- SHARE POPOVER -->
<div class="share-popover-overlay" id="shareOverlay" onclick="if(event.target===this)closeSharePopover()">
<div class="share-popover" style="position:relative">
<button class="share-close-btn" onclick="closeSharePopover()"><i class="fas fa-times"></i></button>
<h4><i class="fas fa-share-alt"></i> Chia sẻ</h4>
<div class="share-apps">
<div class="share-app" onclick="shareVia('facebook')"><div class="share-app-icon" style="background:#1877F2"><i class="fab fa-facebook-f"></i></div><span>Facebook</span></div>
<div class="share-app" onclick="shareVia('messenger')"><div class="share-app-icon" style="background:#0099FF"><i class="fab fa-facebook-messenger"></i></div><span>Messenger</span></div>
<div class="share-app" onclick="shareVia('zalo')"><div class="share-app-icon" style="background:#0068FF"><i class="fas fa-comment-dots"></i></div><span>Zalo</span></div>
<div class="share-app" onclick="shareVia('twitter')"><div class="share-app-icon" style="background:#000"><i class="fab fa-x-twitter"></i></div><span>X</span></div>
<div class="share-app" onclick="shareVia('telegram')"><div class="share-app-icon" style="background:#2AABEE"><i class="fab fa-telegram-plane"></i></div><span>Telegram</span></div>
<div class="share-app" onclick="shareVia('whatsapp')"><div class="share-app-icon" style="background:#25D366"><i class="fab fa-whatsapp"></i></div><span>WhatsApp</span></div>
<div class="share-app" onclick="shareVia('email')"><div class="share-app-icon" style="background:var(--g)"><i class="fas fa-envelope"></i></div><span>Email</span></div>
<div class="share-app" onclick="shareVia('copy')"><div class="share-app-icon" style="background:var(--p)"><i class="fas fa-link"></i></div><span>Copy link</span></div>
</div>
<div class="share-link-box">
<input class="share-link-input" id="shareLinkInput" readonly>
<button class="share-link-copy" onclick="shareVia('copy')"><i class="fas fa-copy"></i> Sao chép</button>
</div>
</div>
</div>

<script src="order-store.js?v=18"></script>
<script src="quote-ui.js?v=8"></script>
<script src="qr-payment.js?v=25"></script>
<script src="search-plus-boot.js?v=26"></script>
<script src="shorts-subtitles.js?v=2"></script>
<script src="ancuong-shorts.js?v=8"></script>
<script src="custom-shorts.js?v=4"></script>
<script src="smart-kitchen-shorts.js?v=4"></script>

<script>function doAISearch(){
  // Delegated to search-plus-boot.js v15 (ALL-IN-ONE)
  if(window._vaiSearchContext && typeof D!=='undefined' && D.length>0){
    var input=document.getElementById('aiSearch');var resultsDiv=document.getElementById('aiResults');
    if(!input||!resultsDiv)return;var query=input.value.trim();
    if(!query||query.length<2){resultsDiv.style.display='block';resultsDiv.innerHTML='💡 Nhập mã SP hoặc mô tả: "bếp từ Grob dưới 10tr", "máy hút mùi Malloca"';return;}
    resultsDiv.style.display='block';resultsDiv.innerHTML='⏳ Đang tìm...';
    // Multi-code search: nếu có dấu phẩy thì tìm theo mã
    var queries=query.split(/[,;]+/).map(function(c){return c.trim()}).filter(function(c){return c.length>=2});
    if(queries.length>1){
      var allResults=[];
      queries.forEach(function(q2){
        var qLow=q2.toLowerCase().replace(/[.\-_ \/]/g,'');
        for(var i=0;i<D.length&&allResults.length<20;i++){
          var p=D[i];if(!p)continue;
          var fields=[(p.sku||''),(p.mod||''),(p.slug||'')].map(function(f){return f.toLowerCase().replace(/[.\-_ \/]/g,'')});
          if(fields.some(function(f){return f===qLow||(f&&qLow.length>=3&&(f.indexOf(qLow)!==-1||qLow.indexOf(f)!==-1))})){allResults.push(p);}
        }
      });
      if(allResults.length){_renderAIResults(allResults,resultsDiv);return;}
    }
    // Natural-language search: multi-category combo budget + technical specs in specs/desc/sum.
    if(window._vaiNaturalSearch&&window._vaiRenderNaturalResults){
      var natural=window._vaiNaturalSearch(query,24);
      if(natural&&(natural.isCombo||(natural.constraints&&natural.constraints.length)||(natural.categories&&natural.categories.length>1))){
        window._vaiRenderNaturalResults(natural,resultsDiv);return;
      }
    }
    // Technical consultant answer for product-specific questions (after multi-code/combo search so old AI search features remain).
    if(window._vaiTechnicalAnswer){
      var tech=window._vaiTechnicalAnswer(query);
      if(tech&&tech.html){_renderAIResults([tech.product],resultsDiv);resultsDiv.insertAdjacentHTML('afterbegin',tech.html);return;}
    }
    // Context search (category + brand + price + keywords)
    var results=window._vaiSearchContext(query,24);
    if(!results.length){resultsDiv.innerHTML='❌ Không tìm thấy "'+query+'". Thử: "bếp từ Malloca", "máy hút mùi dưới 15tr", "máy hút mùi ống thoát phi 150"';return;}
    var prods=results.map(function(r){return r.p;});
    _renderAIResults(prods,resultsDiv);
    return;
  }
  // Fallback: basic
  var q2=document.getElementById('aiSearch').value.trim();
  if(!q2){document.getElementById('aiResults').innerHTML='💡 Nhập mã hoặc tên SP';document.getElementById('aiResults').style.display='block';return;}
  document.getElementById('aiResults').innerHTML='⏳ Đang tải dữ liệu...';document.getElementById('aiResults').style.display='block';
}
// Add to Order from AI search results (same as dropdown "+Đơn")
window._vaiAddOrder=function(slug,btn){
  if(!slug||typeof D==='undefined')return;
  for(var i=0;i<D.length;i++){
    if(D[i]&&D[i].slug===slug){
      if(window._showOrderPicker){
        window._showOrderPicker(D[i],function(r){
          if(r==='ok'){btn.textContent='✓';btn.style.background='#059669';}
          else if(r==='dup'){btn.textContent='Có rồi';btn.style.background='#94a3b8';}
          setTimeout(function(){btn.textContent='+ Đơn';btn.style.background='#003f62';},2500);
        });
      }
      break;
    }
  }
};
function _renderAIResults(prods,res){
  var fmt=function(n){if(!n||isNaN(n))return'LH';return Number(n).toLocaleString('vi-VN')+'đ'};
  var cat=window._vaiDetectCategory?window._vaiDetectCategory(document.getElementById('aiSearch').value):'';
  var brand=window._vaiDetectBrand?window._vaiDetectBrand(document.getElementById('aiSearch').value):'';
  var parts=[];
  if(cat)parts.push('📂 '+cat);if(brand)parts.push('🏷 '+brand);
  parts.push('🔍 '+prods.length+' SP');
  var h='<div style="margin-bottom:10px;display:flex;gap:6px;flex-wrap:wrap">'+parts.map(function(p){return'<span style="background:#eff6ff;padding:3px 8px;border-radius:20px;font-size:11px;font-weight:600;color:#1e40af;border:1px solid #bfdbfe">'+p+'</span>'}).join('')+'</div>';
  h+='<div style="display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px">';
  prods.slice(0,24).forEach(function(p){
    var idx=D.indexOf(p);
    var name=p.name||p.n||'';var price=p.price||p.p||'LH';var img=p.image||p.img||p.i||'';var sku=p.sku||p.model||p.mod||'';var brand2=p.brand||'';var slug=p.slug||'';
    var feats=(p.feats||[]).slice(0,2).join(' • ');
    var specs=p.specs||{};var sk=Object.entries(specs).slice(0,3);
    h+='<div style="background:#fff;border:1px solid #e2e8f0;border-radius:10px;overflow:hidden;transition:all .2s;cursor:pointer" onclick="showDetail('+idx+')" onmouseover="this.style.transform=\'translateY(-2px)\';this.style.boxShadow=\'0 4px 12px rgba(0,0,0,.1)\'" onmouseout="this.style.transform=\'\';this.style.boxShadow=\'\'">';
    if(img)h+='<div style="height:90px;background:#f8fafc;display:flex;align-items:center;justify-content:center"><img src="'+img+'" style="max-width:100%;max-height:85px;object-fit:contain" onerror="this.parentElement.style.display=\'none\'"></div>';
    h+='<div style="padding:8px"><div style="font-size:11px;font-weight:600;color:#003f62;line-height:1.3;height:30px;overflow:hidden">'+name.substring(0,55)+'</div>';
    if(sku)h+='<div style="font-size:9px;color:#94a3b8;margin-top:2px">'+sku+'</div>';
    if(brand2)h+='<div style="font-size:9px;color:#64748b;margin-top:1px">'+brand2+'</div>';
    if(feats)h+='<div style="font-size:8.5px;color:#64748b;margin-top:2px;height:12px;overflow:hidden">'+feats+'</div>';
    if(sk.length){h+='<div style="margin-top:3px;font-size:8px;color:#555;border-top:1px solid #f0f0f0;padding-top:3px">';sk.forEach(function(kv){h+=kv[0]+': <b>'+kv[1]+'</b><br>'});h+='</div>'}
    h+='<div style="font-size:13px;font-weight:800;color:#059669;margin-top:4px">'+price+'</div>';
    h+='</div>';
    // Buttons: +Giỏ hàng + +Đơn
    h+='<div style="display:flex;gap:4px;padding:0 6px 6px">';
    h+='<button onclick="event.stopPropagation();if(typeof addToCart===\'function\')addToCart('+idx+')" style="flex:1;padding:4px;background:#db9815;color:#fff;border:none;border-radius:5px;font-size:9px;font-weight:700;cursor:pointer">+ Giỏ</button>';
    h+='<button onclick="event.stopPropagation();window._vaiAddOrder(\''+slug+'\',this)" style="flex:1;padding:4px;background:#003f62;color:#fff;border:none;border-radius:5px;font-size:9px;font-weight:700;cursor:pointer">+ Đơn</button>';
    h+='</div></div>';
  });
  h+='</div>';res.innerHTML=h;
}

async function _aiSelectProducts(q,res){
  try{
    if(typeof D==='undefined'||!D.length){res.innerHTML='⏳ Đang tải SP...';return}
    // Parse budget
    const bm=q.match(/(\d+)\s*(tr|triệu|m)/i);
    const budget=bm?parseInt(bm[1])*1000000:50000000;
    // Get product summary for AI (top products per category, Malloca/Grob priority)
    const typeMap=[{k:['bep tu','bep dien','bep'],n:'Bếp từ'},{k:['may hut','hut mui'],n:'Máy hút mùi'},{k:['chau rua','bon rua'],n:'Chậu rửa'},{k:['voi rua'],n:'Vòi rửa'},{k:['lo nuong'],n:'Lò nướng'}];
    const qn=q.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/đ/g,'d');
    let wantTypes=typeMap.filter(t=>t.k.some(k=>qn.includes(k)));
    if(!wantTypes.length)wantTypes=typeMap.slice(0,3);
    const perBudget=Math.floor(budget/wantTypes.length);
    // Build catalog summary for AI
    let catalog=[];
    wantTypes.forEach(typ=>{
      let items=D.filter(p=>{
        const pn=((p.name||'')+(p.cat||'')).toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/đ/g,'d');
        return typ.k.some(k=>pn.includes(k))&&p.priceNum>0&&p.priceNum<=perBudget*1.5;
      });
      // Shuffle and take samples for AI to choose from
      for(let i=items.length-1;i>0;i--){let j=Math.floor(Math.random()*(i+1));[items[i],items[j]]=[items[j],items[i]]}
      // Priority: Malloca/Grob first in the list AI sees
      let m=items.filter(p=>/malloca/i.test(p.brand));
      let g=items.filter(p=>/grob/i.test(p.brand));
      let o=items.filter(p=>!/malloca|grob/i.test(p.brand));
      let pool=[...m.slice(0,5),...g.slice(0,4),...o.slice(0,3)];
      pool.forEach(p=>catalog.push({sku:p.sku,name:p.name.substring(0,50),brand:p.brand,price:p.priceNum,type:typ.n}));
    });
    // Call AI to select best combo
    const aiPrompt=`Khách yêu cầu: "${q}"\nNgân sách: ${budget.toLocaleString('vi')}đ\nDanh sách SP có sẵn:\n${catalog.map((p,i)=>i+1+'. ['+p.sku+'] '+p.name+' | '+p.brand+' | '+p.price.toLocaleString('vi')+'đ | Loại: '+p.type).join('\n')}\n\nChọn combo TỐT NHẤT (1 SP mỗi loại, ưu tiên Malloca/Grob, tổng ≤ ngân sách). Trả lời CHỈ JSON: {"picks":[{"sku":"...","reason":"lý do chọn ngắn"}]}`;
    const aiRes=await fetch('https://router.huggingface.co/v1/chat/completions',{
      method:'POST',
      headers:{'Content-Type':'application/json','Authorization':'Bearer '+document.querySelector('meta[name=hf-token]')?.content||''},
      body:JSON.stringify({model:'Qwen/Qwen2.5-72B-Instruct',messages:[{role:'user',content:aiPrompt}],max_tokens:300,temperature:0.7})
    });
    if(!aiRes.ok){
      // Fallback to random selection if AI fails
      _doQuoteFallback(wantTypes,perBudget,budget,res);return;
    }
    const aiData=await aiRes.json();
    const content=aiData.choices[0].message.content;
    const jsonMatch=content.match(/\{[\s\S]*\}/);
    if(!jsonMatch){_doQuoteFallback(wantTypes,perBudget,budget,res);return}
    const result=JSON.parse(jsonMatch[0]);
    const selectedSkus=result.picks.map(p=>p.sku);
    const reasons=Object.fromEntries(result.picks.map(p=>[p.sku,p.reason||'']));
    // Map SKUs to actual products
    let picks=[];let total=0;
    selectedSkus.forEach(sku=>{
      const found=D.find(p=>p.sku===sku);
      if(found){
        const typ=catalog.find(c=>c.sku===sku);
        picks.push({...found,typeName:typ?typ.type:'SP',reason:reasons[sku]||''});
        total+=found.priceNum;
      }
    });
    if(!picks.length){_doQuoteFallback(wantTypes,perBudget,budget,res);return}
    _renderQuote(picks,total,budget,res,true);
  }catch(e){
    console.error(e);
    // Fallback
    const bm=q.match(/(\d+)\s*(tr|triệu|m)/i);
    const budget=bm?parseInt(bm[1])*1000000:50000000;
    const typeMap=[{k:['bep tu','bep dien','bep'],n:'Bếp từ'},{k:['may hut','hut mui'],n:'Máy hút mùi'},{k:['chau rua','bon rua'],n:'Chậu rửa'}];
    const qn=q.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/đ/g,'d');
    let wantTypes=typeMap.filter(t=>t.k.some(k=>qn.includes(k)));
    if(!wantTypes.length)wantTypes=typeMap.slice(0,3);
    _doQuoteFallback(wantTypes,Math.floor(budget/wantTypes.length),budget,res);
  }
}
function _doQuoteFallback(wantTypes,perBudget,budget,res){
  let picks=[];let total=0;
  function shuffle(a){for(let i=a.length-1;i>0;i--){let j=Math.floor(Math.random()*(i+1));[a[i],a[j]]=[a[j],a[i]]}return a}
  wantTypes.forEach(typ=>{
    let all=D.filter(p=>{
      const pn=((p.name||'')+(p.cat||'')).toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/đ/g,'d');
      return typ.k.some(k=>pn.includes(k))&&p.priceNum>0&&p.priceNum<=perBudget*1.5;
    });
    let m=shuffle(all.filter(p=>/malloca/i.test(p.brand)));
    let g=shuffle(all.filter(p=>/grob/i.test(p.brand)));
    let pool=[...m.slice(0,4),...g.slice(0,3),...shuffle(all).slice(0,3)];
    shuffle(pool);
    let pick=pool.find(p=>p.priceNum<=perBudget*1.3)||pool[0];
    if(pick){picks.push({...pick,typeName:typ.n,reason:''});total+=pick.priceNum}
  });
  if(!picks.length){res.innerHTML='😅 Không đủ SP phù hợp';return}
  _renderQuote(picks,total,budget,res,false);
}
function _renderQuote(picks,total,budget,res,isAI){
  let h='<div style="font-weight:700;margin-bottom:10px;font-size:.95rem">'+(isAI?'🤖':'📋')+' AI BÁO GIÁ <span style="color:#64748b;font-weight:400">(~'+budget.toLocaleString('vi')+'đ)</span></div>';
  h+='<table style="width:100%;border-collapse:collapse;font-size:.8rem">';
  h+='<tr style="background:#003f62;color:#fff"><th style="padding:8px;text-align:left">Loại</th><th style="text-align:left">Sản phẩm</th><th>Brand</th><th style="text-align:right;padding-right:8px">Giá</th></tr>';
  picks.forEach((p,i)=>{
    h+='<tr style="border-bottom:1px solid #e2e8f0;'+(i%2?'background:#f8fafc':'')+'"><td style="padding:8px;font-weight:600">'+p.typeName+'</td><td>'+p.name.substring(0,38)+(p.reason?'<br><span style="font-size:.65rem;color:#28a745">💡 '+p.reason+'</span>':'')+'<br><span style="font-size:.62rem;color:#888">'+p.sku+(p.specs&&Object.keys(p.specs).length?' | '+Object.entries(p.specs).slice(0,2).map(([k,v])=>k+':'+v).join(', '):'')+'</span></td><td style="text-align:center;font-size:.75rem">'+p.brand+'</td><td style="text-align:right;font-weight:700;color:#003f62;padding-right:8px">'+(p.price||'LH')+'</td></tr>';
  });
  h+='<tr style="background:#003f62;color:#fff;font-weight:800"><td colspan="3" style="padding:10px;text-align:right">TỔNG:</td><td style="text-align:right;padding-right:8px;font-size:.95rem">'+total.toLocaleString('vi')+'đ</td></tr></table>';
  const diff=budget-total;
  h+=diff>=0?'<div style="margin-top:8px;color:#28a745;font-weight:600;font-size:.82rem">✅ Trong ngân sách! Dư '+diff.toLocaleString('vi')+'đ</div>':'<div style="margin-top:8px;color:#dc3545;font-weight:600;font-size:.82rem">⚠️ Vượt '+(0-diff).toLocaleString('vi')+'đ</div>';
  h+='<div style="margin-top:12px;text-align:center;display:flex;gap:8px;justify-content:center;flex-wrap:wrap">';
  h+='';
  h+='<button onclick="_addQuotePicks()" style="padding:9px 18px;background:#db9815;color:#fff;border:none;border-radius:8px;font-weight:700;cursor:pointer;font-size:.82rem">🛒 Thêm giỏ</button></div>';
  res.innerHTML=h;window._quotePicks=picks;
}

</script>

<script>
// Chat AI: intercept messages and show search/quote results directly
(function(){
  // Hook into chat send if exists
  const origChatSend=window.sendChatMessage;
  if(typeof origChatSend==='function'){
    window.sendChatMessage=function(msg){
      if(_handleChatAI(msg))return;
      origChatSend(msg);
    }
  }
  // Also expose for manual use
  window.chatAI=function(msg){_handleChatAI(msg)};
})();
function _handleChatAI(msg){
  if(!msg||typeof D==='undefined')return false;
  const lo=msg.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/đ/g,'d');
  // Detect intent
  const isSearch=lo.includes('tim')||lo.includes('kiem');
  // "báo giá" NOT redirected — stays in chatbox for inline quote
  const isBaoGia=lo.includes('bao gia')||lo.includes('combo')||lo.includes('du toan');
  if(isBaoGia)return false; // let sendChat handle it
  if(isSearch){
    document.getElementById('aiSearch').value=msg;
    doAISearch();
    document.getElementById('aiResults').scrollIntoView({behavior:'smooth',block:'start'});
    return true;
  }
  return false;
}
</script>
<script>
// Chat AI: only redirect pure SEARCH queries to AI search on main page
// "báo giá" handled by sendChat() inline (NOT redirected)
function _tryChatAI(msg){
  var lo=msg.toLowerCase().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/\u0111/g,'d');
  // If it's a quote request → DO NOT intercept, let sendChat handle it
  if(lo.includes('bao gia')||lo.includes('combo')||lo.includes('du toan'))return false;
  return false; // Let all messages go through sendChat for AI response
}
</script>
<script>
// === FIX 1: Ensure quote table shows product images ===
// Override/patch the quote rendering to include images
(function(){
  var origOpen = window.openQuoteModal || window.showQuoteModal;
  // Patch: after quote modal opens, fix images
  var fixQuoteImages = function(){
    setTimeout(function(){
      var rows = document.querySelectorAll('.quote-table tr');
      var cart = window.CART || [];
      rows.forEach(function(row, i){
        if(i === 0) return; // skip header
        var imgCell = row.querySelector('.qt-img, img');
        var cartItem = cart[i-1];
        if(cartItem && !imgCell){
          // Add image if missing
          var firstTd = row.querySelector('td');
          if(firstTd && cartItem.image){
            firstTd.innerHTML = '<img class="qt-img" src="'+cartItem.image+'" style="width:60px;height:60px;object-fit:contain;border-radius:4px">';
          }
        } else if(imgCell && cartItem && cartItem.image && imgCell.tagName === 'IMG' && !imgCell.src){
          imgCell.src = cartItem.image;
        }
      });
    }, 200);
  };
  // Hook into quote modal open
  var origOpenCart = window.openCheckout || window.openQuote;
  if(origOpenCart){
    var wrapped = function(){
      origOpenCart.apply(this, arguments);
      fixQuoteImages();
    };
    if(window.openCheckout) window.openCheckout = wrapped;
    if(window.openQuote) window.openQuote = wrapped;
  }
  document.addEventListener('click', function(e){
    if(e.target && (e.target.textContent||'').includes('Báo giá')){
      fixQuoteImages();
    }
  });
})();

// === FIX 2: CK discount calculation - client side, no API ===
(function(){
  document.addEventListener('input', function(e){
    if(e.target && e.target.classList.contains('qt-disc')){
      var row = e.target.closest('tr');
      if(!row) return;
      var ckVal = parseFloat(e.target.value) || 0;
      // Find price cell (don gia)
      var cells = row.querySelectorAll('td');
      var priceCell = null;
      var ckPriceCell = null;
      var ttCell = null;
      var qtyCell = null;
      cells.forEach(function(td, idx){
        var text = td.textContent.replace(/[^\d]/g,'');
        if(td.querySelector('.qt-disc')) return;
        if(td.classList.contains('qt-price') || (text.length > 4 && !priceCell && idx > 2)){
          if(!priceCell) priceCell = td;
          else if(!ckPriceCell) ckPriceCell = td;
          else if(!ttCell) ttCell = td;
        }
      });
      // Get original price from data attribute or cell content
      var origPrice = parseInt((row.dataset.price || (priceCell?priceCell.textContent:'')).replace(/[^\d]/g,'')) || 0;
      var qty = parseInt(row.dataset.qty || '1') || 1;
      if(origPrice > 0 && ckVal >= 0){
        var discPrice = Math.round(origPrice * (1 - ckVal/100));
        var thanhTien = discPrice * qty;
        // Update cells
        if(ckPriceCell) ckPriceCell.textContent = discPrice.toLocaleString('vi-VN');
        if(ttCell) ttCell.textContent = thanhTien.toLocaleString('vi-VN');
        // Update total
        var totalEl = document.querySelector('.quote-total-row td:last-child') || document.querySelector('[class*="quote-total"]');
        if(totalEl){
          var allTT = 0;
          document.querySelectorAll('.quote-table tr').forEach(function(r,i){
            if(i===0)return;
            var tds = r.querySelectorAll('td');
            var lastNum = tds[tds.length-1];
            if(lastNum) allTT += parseInt(lastNum.textContent.replace(/[^\d]/g,''))||0;
          });
          totalEl.textContent = allTT.toLocaleString('vi-VN') + ' VNĐ';
        }
      }
    }
  });
})();

// === FIX 3: Patch Excel export to use proper number format ===
(function(){
  var origExport = window.exportQuoteExcel || window.downloadExcel;
  window.exportQuoteExcel = window.downloadExcel = function(){
    // If ExcelJS is available, create proper workbook
    if(typeof ExcelJS === 'undefined'){
      if(origExport) return origExport.apply(this, arguments);
      alert('Excel library not loaded');
      return;
    }
    var wb = new ExcelJS.Workbook();
    var ws = wb.addWorksheet('Bao Gia');
    // Header
    ws.columns = [
      {header:'STT', key:'stt', width:5},
      {header:'Ma SP', key:'sku', width:15},
      {header:'Ten SP', key:'name', width:40},
      {header:'DVT', key:'dvt', width:6},
      {header:'SL', key:'qty', width:5},
      {header:'Don gia', key:'price', width:15},
      {header:'CK %', key:'ck', width:8},
      {header:'Don gia CK', key:'ckprice', width:15},
      {header:'Thanh tien', key:'total', width:15},
    ];
    // Style header
    ws.getRow(1).font = {bold: true};
    ws.getRow(1).fill = {type:'pattern', pattern:'solid', fgColor:{argb:'FF1F4E79'}};
    ws.getRow(1).font = {bold:true, color:{argb:'FFFFFFFF'}};
    // Get data from quote table
    var rows = document.querySelectorAll('.quote-table tr');
    var grandTotal = 0;
    rows.forEach(function(row, i){
      if(i===0) return; // skip header
      if(row.classList.contains('quote-total-row')) return;
      var cells = row.querySelectorAll('td');
      var ckInput = row.querySelector('.qt-disc');
      var ckVal = ckInput ? (parseFloat(ckInput.value)||0) : 0;
      // Extract values
      var texts = Array.from(cells).map(function(c){return c.textContent.trim()});
      var price = parseInt((row.dataset.price || texts[5] || '0').replace(/[^\d]/g,'')) || 0;
      var qty = parseInt(row.dataset.qty || texts[4] || '1') || 1;
      var ckPrice = Math.round(price * (1 - ckVal/100));
      var tt = ckPrice * qty;
      grandTotal += tt;
      var dataRow = ws.addRow({
        stt: i,
        sku: texts[1] || '',
        name: texts[2] || '',
        dvt: 'Bộ',
        qty: qty,
        price: price,
        ck: ckVal,
        ckprice: ckPrice,
        total: tt
      });
      // Number format for money columns
      dataRow.getCell('price').numFmt = '#,##0';
      dataRow.getCell('ckprice').numFmt = '#,##0';
      dataRow.getCell('total').numFmt = '#,##0';
    });
    // Total row
    var totalRow = ws.addRow({name:'TONG CONG', total: grandTotal});
    totalRow.font = {bold:true};
    totalRow.getCell('total').numFmt = '#,##0';
    // Add formulas
    var dataStart = 2;
    var dataEnd = ws.rowCount - 1;
    for(var r=dataStart; r<=dataEnd; r++){
      ws.getCell('H'+r).value = {formula: 'F'+r+'*(1-G'+r+'/100)'};
      ws.getCell('I'+r).value = {formula: 'H'+r+'*E'+r};
    }
    ws.getCell('I'+(dataEnd+1)).value = {formula: 'SUM(I'+dataStart+':I'+dataEnd+')'};
    // Download
    wb.xlsx.writeBuffer().then(function(buf){
      var blob = new Blob([buf], {type:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'});
      var url = URL.createObjectURL(blob);
      var a = document.createElement('a');
      a.href = url;
      a.download = 'BaoGia_VAISTUDIO_' + new Date().toISOString().slice(0,10) + '.xlsx';
      a.click();
      URL.revokeObjectURL(url);
    });
  };
})();
</script>



<script>
if(localStorage.getItem('vas_quote_unlocked')==='1')document.body.classList.add('vas-unlocked');
</script>



<script>
// Saved orders list (stored in localStorage)
function getSavedOrders(){
  try{return JSON.parse(localStorage.getItem('vas_orders')||'[]')}catch(e){return[]}
}
function saveSavedOrders(orders){
  localStorage.setItem('vas_orders',JSON.stringify(orders));
}

function saveToOrder(idx){
  if(typeof D==='undefined'||!D[idx])return;
  var p=D[idx];
  // Show order selection popup
  var existing=document.getElementById('orderSelectPopup');
  if(existing)existing.remove();
  
  var orders=getSavedOrders();
  var popup=document.createElement('div');
  popup.id='orderSelectPopup';
  popup.style.cssText='position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px';
  
  var content='<div style="background:#fff;border-radius:12px;padding:20px;max-width:360px;width:100%;box-shadow:0 8px 30px rgba(0,0,0,.2)">';
  content+='<h3 style="margin-bottom:12px;font-size:.95rem;color:#003f62">Chon don hang</h3>';
  content+='<div style="font-size:.78rem;color:#666;margin-bottom:10px">SP: <b>'+((p.name||'').split('|').pop()||p.sku||'').trim().substring(0,40)+'</b></div>';
  
  // List existing orders
  if(orders.length>0){
    content+='<div style="max-height:200px;overflow-y:auto;margin-bottom:10px">';
    orders.forEach(function(ord,i){
      content+='<div onclick="addToSelectedOrder('+idx+','+i+')" style="padding:8px 12px;border:1.5px solid #ddd;border-radius:6px;margin-bottom:6px;cursor:pointer;font-size:.8rem;transition:.2s" onmouseover="this.style.borderColor=\'#003f62\'" onmouseout="this.style.borderColor=\'#ddd\'">';
      content+='<b>'+ord.name+'</b> <span style="color:#888">('+ord.items.length+' SP)</span>';
      content+='</div>';
    });
    content+='</div>';
  }else{
    content+='<div style="color:#888;font-size:.8rem;margin-bottom:10px">Chua co don hang nao.</div>';
  }
  
  // New order button
  content+='<div style="display:flex;gap:8px">';
  content+='<button onclick="createNewOrderAndAdd('+idx+')" style="flex:1;padding:8px;background:#003f62;color:#fff;border:none;border-radius:6px;font-size:.8rem;cursor:pointer;font-weight:600">+ Don moi</button>';
  content+='<button onclick="document.getElementById(\'orderSelectPopup\').remove()" style="padding:8px 14px;background:#eee;border:none;border-radius:6px;font-size:.8rem;cursor:pointer">Huy</button>';
  content+='</div></div>';
  
  popup.innerHTML=content;
  popup.onclick=function(e){if(e.target===popup)popup.remove()};
  document.body.appendChild(popup);
}

function createNewOrderAndAdd(idx){
  var name=prompt('Ten don hang moi:','Don '+new Date().toLocaleDateString('vi'));
  if(!name)return;
  var orders=getSavedOrders();
  var p=D[idx];
  orders.push({name:name,items:[{sku:p.sku||p.model||'',name:p.name||'',price:p.priceNum||0,qty:1}],created:new Date().toISOString()});
  saveSavedOrders(orders);
  document.getElementById('orderSelectPopup').remove();
  showToast('Da tao don "'+name+'" va them SP!');
}

function addToSelectedOrder(idx,orderIdx){
  var orders=getSavedOrders();
  var p=D[idx];
  if(orders[orderIdx]){
    orders[orderIdx].items.push({sku:p.sku||p.model||'',name:p.name||'',price:p.priceNum||0,qty:1});
    saveSavedOrders(orders);
    document.getElementById('orderSelectPopup').remove();
    showToast('Da them vao don "'+orders[orderIdx].name+'"!');
  }
}

function showToast(msg){
  var t=document.createElement('div');
  t.style.cssText='position:fixed;top:20px;right:20px;background:#28a745;color:#fff;padding:10px 16px;border-radius:8px;z-index:99999;font-size:.82rem;box-shadow:0 4px 12px rgba(0,0,0,.2)';
  t.textContent=msg;
  document.body.appendChild(t);
  setTimeout(function(){t.remove()},2500);
}
</script>
<script src="malloca-shorts.js?v=3"></script>
<script src="ancuong.js?v=5"></script>

<script>
// VAI resilient search fallback v1 — keeps dropdown and AI search working if boot module is delayed or errors.
(function(){
function nrm(s){return (s||'').toString().normalize('NFD').replace(/[\u0300-\u036f]/g,'').replace(/[Đđ]/g,'d').toLowerCase();}
function code(s){return nrm(s).replace(/[^a-z0-9]/g,'');}
function getData(){return (typeof D!=='undefined'&&Array.isArray(D))?D:[];}
function localSearch(q,limit){var data=getData(), nq=nrm(q), cq=code(q);limit=limit||20;if(!data.length)return[];var terms=nq.split(/\s+/).filter(function(x){return x.length>1&&!/^(tim|tìm|cho|toi|tôi|sp|san|pham|sản|phẩm)$/.test(x);});var out=[];data.forEach(function(p,i){var name=nrm(p.name||p.n||''), cat=nrm(p.cat||p.c||''), brand=nrm(p.brand||''), sku=code((p.sku||p.mod||p.model||'')+' '+(p.slug||''));var score=0;if(cq&&sku&&(sku===cq||sku.indexOf(cq)!==-1||cq.indexOf(sku)!==-1))score+=1000;terms.forEach(function(t){if(name.indexOf(t)!==-1)score+=20;if(cat.indexOf(t)!==-1)score+=12;if(brand.indexOf(t)!==-1)score+=25;});if(score>0)out.push({p:p,score:score,idx:i});});out.sort(function(a,b){return b.score-a.score;});return out.slice(0,limit).map(function(x){return x.p;});}
function renderCards(prods,res){if(!res)return;if(!prods.length){res.style.display='block';res.innerHTML='❌ Không tìm thấy sản phẩm phù hợp. Thử nhập mã SP hoặc mô tả khác.';return;}if(typeof _renderAIResults==='function'){_renderAIResults(prods,res);return;}res.style.display='block';res.innerHTML='<div style="display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px">'+prods.slice(0,20).map(function(p){var img=p.image||p.img||p.i||'', name=p.name||p.n||'', price=p.price||p.p||'LH';return '<div style="background:#fff;border:1px solid #e2e8f0;border-radius:10px;padding:8px">'+(img?'<img src="'+img+'" style="height:80px;max-width:100%;object-fit:contain;margin:auto">':'')+'<b style="font-size:11px;color:#003f62">'+name.substring(0,60)+'</b><div style="color:#059669;font-weight:800;font-size:12px">'+price+'</div></div>';}).join('')+'</div>';}
window.doAISearch=function(){var input=document.getElementById('aiSearch'),res=document.getElementById('aiResults');if(!input||!res)return;var q=input.value.trim();res.style.display='block';if(!q){res.innerHTML='💡 Nhập mã SP hoặc mô tả sản phẩm';return;}res.innerHTML='⏳ Đang tìm...';setTimeout(function(){try{var qs=q.split(/[,;]+/).map(function(x){return x.trim();}).filter(Boolean), all=[];if(qs.length>1){qs.forEach(function(x){all=all.concat(localSearch(x,5));});}if(all.length){renderCards(all,res);return;}if(window._vaiNaturalSearch&&window._vaiRenderNaturalResults){var nr=window._vaiNaturalSearch(q,24);if(nr&&((nr.groups&&nr.groups.length)||(nr.combos&&nr.combos.length))){window._vaiRenderNaturalResults(nr,res);return;}}if(window._vaiSearchContext){var rr=window._vaiSearchContext(q,24).map(function(r){return r.p}).filter(Boolean);if(rr.length){renderCards(rr,res);return;}}renderCards(localSearch(q,24),res);}catch(e){console.error('AI fallback error',e);renderCards(localSearch(q,24),res);}},50);};
function ensureDropdown(){var inp=document.getElementById('q');if(!inp||inp.dataset.vaiFallbackDd)return;inp.dataset.vaiFallbackDd='1';var box=document.createElement('div');box.id='vai-fallback-dd';box.style.cssText='position:absolute;left:0;right:0;top:100%;background:#fff;border:1px solid #e2e8f0;border-radius:0 0 12px 12px;box-shadow:0 8px 24px rgba(0,0,0,.12);max-height:480px;overflow-y:auto;z-index:99999;display:none';inp.parentElement.style.position='relative';inp.parentElement.appendChild(box);inp.addEventListener('input',function(){var q=inp.value.trim();if(q.length<2){box.style.display='none';return;}var rs=(window._vaiSearchContext?window._vaiSearchContext(q,12).map(function(r){return r.p}):localSearch(q,12));if(!rs.length){box.style.display='none';return;}box.innerHTML=rs.map(function(p){var img=p.image||p.img||p.i||'', name=p.name||p.n||'', price=p.price||p.p||'LH', slug=p.slug||'';return '<div data-slug="'+slug+'" style="display:flex;gap:8px;padding:8px;border-bottom:1px solid #f1f5f9;cursor:pointer"><img src="'+img+'" style="width:36px;height:36px;object-fit:contain;background:#f8fafc"><div style="flex:1"><div style="font-size:12px;font-weight:700;color:#003f62">'+name.substring(0,60)+'</div><div style="font-size:11px;color:#059669;font-weight:700">'+price+'</div></div></div>';}).join('');box.style.display='block';box.querySelectorAll('[data-slug]').forEach(function(el){el.onclick=function(){var slug=this.dataset.slug;box.style.display='none';if(window._vaiGoProduct)window._vaiGoProduct(slug);else location.href='/san-pham/'+slug+'/index.html';};});});document.addEventListener('click',function(e){if(e.target!==inp&&!box.contains(e.target))box.style.display='none';});}
if(document.readyState==='loading')document.addEventListener('DOMContentLoaded',ensureDropdown);else ensureDropdown();setTimeout(ensureDropdown,1500);
})();
</script>

<script>
const ADD_PRODUCT_API='https://bep40-vaistudio-zalo-bot.hf.space/api/add-product-url';
function openAddProductModal(){
  const o=document.getElementById('addProductOverlay'); if(o)o.classList.add('open');
  const st=document.getElementById('addProductStatus'); if(st){st.className='add-product-status';st.textContent='';}
  setTimeout(()=>{const p=document.getElementById('addProductSecret'); if(p&&!p.value)p.focus();},80);
}
function closeAddProductModal(){const o=document.getElementById('addProductOverlay'); if(o)o.classList.remove('open');}
async function submitAddProductUrl(){
  const secret=(document.getElementById('addProductSecret')||{}).value||'';
  const url=(document.getElementById('addProductUrl')||{}).value||'';
  const st=document.getElementById('addProductStatus'); const btn=document.getElementById('addProductSubmit');
  function say(msg,ok){if(st){st.className='add-product-status '+(ok?'ok':'err');st.innerHTML=msg;}}
  if(secret.trim()!=='vaistudio2026')return say('❌ Sai mã truy cập.',false);
  if(!/^https?:\/\//i.test(url.trim()))return say('❌ URL không hợp lệ. Vui lòng nhập link bắt đầu bằng http/https.',false);
  if(btn){btn.disabled=true;btn.innerHTML='<i class="fas fa-spinner fa-spin"></i> Đang phân tích...';}
  say('⏳ Đang đọc website và trích xuất dữ liệu sản phẩm. Vui lòng chờ...',true);
  try{
    const r=await fetch(ADD_PRODUCT_API,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({secret:secret.trim(),url:url.trim()})});
    const j=await r.json().catch(()=>({ok:false,error:'Không đọc được phản hồi API'}));
    if(!r.ok||!j.ok)throw new Error(j.error||('HTTP '+r.status));
    const p=j.product||{};
    say('✅ Đã '+(j.replaced?'cập nhật':'thêm')+' sản phẩm thành công!<br><br><b>📦 '+(p.name||'Sản phẩm')+'</b><br>🔖 '+(p.mod||p.sku||'')+' · 🏷 '+(p.brand||'')+' · 📂 '+(p.cat||'')+'<br>💰 '+(p.price||'Liên hệ')+' · 🖼 '+(p.images||0)+' ảnh · 📋 '+(p.specs||0)+' thông số<br><br><a href="'+j.product_url+'" target="_blank" style="color:#003f62;font-weight:800;text-decoration:underline">Mở trang sản phẩm</a><br><span style="color:#64748b">Nếu chưa thấy ngay trong danh sách, bấm tải lại trang sau 10–30 giây để cập nhật cache.</span>',true);
  }catch(e){say('❌ Không thêm được sản phẩm: '+String(e.message||e),false);}
  finally{if(btn){btn.disabled=false;btn.innerHTML='<i class="fas fa-wand-magic-sparkles"></i> Thêm SP';}}
}
</script>

</body>
</html>