/* V650: VIFOOD AI tư vấn khách hàng – khung chat nổi. Mọi quy tắc đều nằm trong #vf-aic để không ảnh hưởng giao diện hiện có. */
#vf-aic{--aic-green:#174a31;--aic-green-2:#098443;--aic-mint:#eef8f1;--aic-line:#dbe9df;--aic-ink:#183227;--aic-muted:#5d7166;--aic-orange:#ff7417;--aic-bg:#f6faf7;
 position:fixed;right:22px;bottom:84px;z-index:9990;font-size:14px;line-height:1.5;color:var(--aic-ink);-webkit-font-smoothing:antialiased}
#vf-aic *,#vf-aic *::before,#vf-aic *::after{box-sizing:border-box}
#vf-aic [hidden]{display:none!important}
#vf-aic button,#vf-aic input,#vf-aic textarea{font:inherit;color:inherit;margin:0;letter-spacing:normal;text-transform:none;text-shadow:none;box-shadow:none;min-height:0;max-width:none;float:none;border-radius:0}
#vf-aic button{background:none;border:0;padding:0;cursor:pointer;width:auto;height:auto;line-height:1.3}
#vf-aic button:focus-visible,#vf-aic a:focus-visible,#vf-aic input:focus-visible,#vf-aic textarea:focus-visible{outline:2px solid var(--aic-orange);outline-offset:2px}
#vf-aic p,#vf-aic ul,#vf-aic dl,#vf-aic dd{margin:0;padding:0}
#vf-aic svg{display:block;flex:none}
#vf-aic .vf-aic-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Nút mở */
#vf-aic .vf-aic-launcher{position:relative;display:flex;align-items:center;gap:8px;height:54px;padding:0 20px 0 15px;border-radius:999px;background:linear-gradient(135deg,var(--aic-green-2),var(--aic-green));color:#fff;box-shadow:0 10px 28px rgba(23,74,49,.32),0 2px 6px rgba(23,74,49,.18);transition:transform .18s ease,box-shadow .18s ease}
#vf-aic .vf-aic-launcher:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(23,74,49,.36)}
#vf-aic .vf-aic-launcher-label{font-weight:700;font-size:15px;white-space:nowrap}
#vf-aic .vf-aic-dot{position:absolute;top:6px;left:38px;width:11px;height:11px;border-radius:50%;background:var(--aic-orange);border:2px solid #fff}
#vf-aic.is-open .vf-aic-launcher{display:none}

/* Lời mời */
#vf-aic .vf-aic-teaser{position:absolute;right:0;bottom:66px;width:250px;display:flex;align-items:flex-start;gap:4px;padding:12px 10px 12px 14px;background:#fff;border:1px solid var(--aic-line);border-radius:14px 14px 4px 14px;box-shadow:0 12px 30px rgba(16,67,42,.16);animation:vfAicIn .25s ease}
#vf-aic .vf-aic-teaser-text{flex:1;text-align:left;font-size:13.5px;font-weight:600;color:var(--aic-ink);line-height:1.45}
#vf-aic .vf-aic-teaser-x{color:var(--aic-muted);padding:2px;border-radius:6px}
#vf-aic .vf-aic-teaser-x:hover{background:var(--aic-mint)}

/* Bảng chat */
#vf-aic .vf-aic-panel{position:fixed;right:22px;bottom:20px;width:392px;height:min(640px,calc(100vh - 40px));display:flex;flex-direction:column;background:#fff;border:1px solid var(--aic-line);border-radius:18px;overflow:hidden;box-shadow:0 24px 60px rgba(16,52,34,.26);animation:vfAicIn .22s ease}
@keyframes vfAicIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
#vf-aic .vf-aic-head{display:flex;align-items:center;gap:8px;padding:12px 10px 12px 14px;background:linear-gradient(135deg,var(--aic-green),#0f3a25);color:#fff;flex:none}
#vf-aic .vf-aic-avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.14);color:#bff0cf;flex:none}
#vf-aic .vf-aic-title{flex:1;min-width:0;display:flex;flex-direction:column}
#vf-aic .vf-aic-title strong{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#fff}
#vf-aic .vf-aic-title small{font-size:12px;color:#cfe8d8;display:flex;align-items:center;gap:6px;min-width:0}
#vf-aic .vf-aic-title small span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#vf-aic .vf-aic-title small i{width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 3px rgba(74,222,128,.22)}
#vf-aic .vf-aic-hbtn{display:flex;align-items:center;gap:5px;color:#fff;padding:7px;border-radius:9px;position:relative}
#vf-aic .vf-aic-hbtn:hover{background:rgba(255,255,255,.14)}
#vf-aic .vf-aic-open-quote{border:1px solid rgba(255,255,255,.35);padding:6px 10px;font-size:12.5px;font-weight:600}
#vf-aic .vf-aic-count{position:absolute;top:-6px;right:-6px;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--aic-orange);color:#fff;font-size:11px;line-height:18px;text-align:center;font-weight:700}

#vf-aic .vf-aic-body{flex:1;overflow-y:auto;padding:16px 14px 8px;background:var(--aic-bg);overscroll-behavior:contain;scroll-behavior:smooth}
#vf-aic .vf-aic-msg{display:flex;flex-direction:column;margin:0 0 12px;max-width:100%}
#vf-aic .vf-aic-user{align-items:flex-end}
#vf-aic .vf-aic-bubble{max-width:86%;padding:10px 13px;border-radius:16px;font-size:14px;line-height:1.55;word-wrap:break-word;overflow-wrap:anywhere}
#vf-aic .vf-aic-assistant .vf-aic-bubble{background:#fff;border:1px solid var(--aic-line);border-top-left-radius:5px;color:var(--aic-ink)}
#vf-aic .vf-aic-user .vf-aic-bubble{background:var(--aic-green);color:#fff;border-top-right-radius:5px}
#vf-aic .vf-aic-bubble p+p,#vf-aic .vf-aic-bubble p+ul,#vf-aic .vf-aic-bubble ul+p{margin-top:7px}
#vf-aic .vf-aic-bubble ul{list-style:none;margin-top:4px}
#vf-aic .vf-aic-bubble li{position:relative;padding-left:15px;margin:3px 0}
#vf-aic .vf-aic-bubble li::before{content:"";position:absolute;left:3px;top:.65em;width:6px;height:6px;border-radius:50%;background:var(--aic-green-2)}
#vf-aic .vf-aic-bubble strong{font-weight:700;color:inherit}
#vf-aic .vf-aic-bubble a{color:var(--aic-green-2);font-weight:600;text-decoration:underline;text-underline-offset:2px}
#vf-aic .vf-aic-user .vf-aic-bubble a{color:#fff}

/* V653: nhân viên hỗ trợ */
#vf-aic .vf-aic-staff-label{font-size:11.5px;font-weight:700;color:#a54600;margin:0 0 3px 4px;display:flex;align-items:center;gap:5px}
#vf-aic .vf-aic-staff-label::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--aic-orange)}
#vf-aic .vf-aic-staff .vf-aic-bubble{background:#fff7ef;border:1px solid #f6d3b3;border-top-left-radius:5px;color:var(--aic-ink)}
#vf-aic .vf-aic-sys{margin:4px auto 12px;max-width:90%;text-align:center;font-size:12px;color:#8a5a2b;background:#fff3e6;border-radius:999px;padding:6px 12px}
#vf-aic.vf-aic-staff-on .vf-aic-title small i{background:var(--aic-orange);box-shadow:0 0 0 3px rgba(255,116,23,.25)}
#vf-aic.vf-aic-staff-on .vf-aic-human{background:var(--aic-orange);border-color:var(--aic-orange);color:#fff}
#vf-aic .vf-aic-human:disabled{opacity:.6;cursor:wait}

/* Đang trả lời */
#vf-aic .vf-aic-typing .vf-aic-bubble{display:flex;gap:5px;padding:14px 16px}
#vf-aic .vf-aic-typing span{width:7px;height:7px;border-radius:50%;background:#8fb9a0;animation:vfAicDot 1.1s infinite ease-in-out}
#vf-aic .vf-aic-typing span:nth-child(2){animation-delay:.15s}#vf-aic .vf-aic-typing span:nth-child(3){animation-delay:.3s}
@keyframes vfAicDot{0%,80%,100%{transform:translateY(0);opacity:.5}40%{transform:translateY(-4px);opacity:1}}

/* Thẻ sản phẩm */
#vf-aic .vf-aic-products{display:flex;flex-direction:column;gap:8px;margin-top:8px;width:92%}
#vf-aic .vf-aic-card{display:flex;align-items:center;gap:8px;padding:8px;background:#fff;border:1px solid var(--aic-line);border-radius:13px;transition:border-color .15s}
#vf-aic .vf-aic-card:hover{border-color:#a9d3b8}
#vf-aic .vf-aic-card-link{flex:1;min-width:0;display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none}
#vf-aic .vf-aic-thumb{position:relative;width:58px;height:58px;border-radius:9px;background:var(--aic-mint);color:#9cc7ad;flex:none;display:grid;place-items:center;overflow:hidden}
#vf-aic .vf-aic-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;max-width:none;border-radius:0}
#vf-aic .vf-aic-card-info{min-width:0;display:flex;flex-direction:column;gap:1px}
#vf-aic .vf-aic-card-info strong{font-size:13.5px;font-weight:600;line-height:1.35;color:var(--aic-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
#vf-aic .vf-aic-card-info small{font-size:12px;color:var(--aic-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#vf-aic .vf-aic-price{font-size:14px;font-weight:700;color:#d9480f}
#vf-aic .vf-aic-price-contact{color:var(--aic-green-2);font-size:13px}
#vf-aic .vf-aic-add{display:flex;align-items:center;gap:3px;flex:none;padding:7px 9px;border-radius:9px;background:var(--aic-mint);color:var(--aic-green);font-size:12px;font-weight:700;white-space:nowrap}
#vf-aic .vf-aic-add:hover{background:#dff1e5}
#vf-aic .vf-aic-add.is-added{background:var(--aic-green);color:#fff}

/* Xác nhận đơn */
#vf-aic .vf-aic-order{width:92%;margin-top:8px;padding:12px 13px;background:#fffaf3;border:1px solid #f3dcbc;border-radius:13px}
#vf-aic .vf-aic-order>strong{display:block;font-size:13.5px;margin-bottom:7px;color:#8a3b07}
#vf-aic .vf-aic-order dl{display:grid;grid-template-columns:auto 1fr;gap:4px 10px;font-size:13px}
#vf-aic .vf-aic-order dt{color:var(--aic-muted)}
#vf-aic .vf-aic-order dd{font-weight:600;overflow-wrap:anywhere}
#vf-aic .vf-aic-order-actions{display:flex;gap:8px;margin-top:11px}
#vf-aic .vf-aic-order-send{flex:1;padding:9px 12px;border-radius:10px;background:var(--aic-orange);color:#fff;font-weight:700;text-align:center}
#vf-aic .vf-aic-order-send:hover{background:#ec6408}
#vf-aic .vf-aic-order-send:disabled{opacity:.7;cursor:wait}
#vf-aic .vf-aic-order-edit{padding:9px 12px;border-radius:10px;border:1px solid #e6ccaa;color:#8a3b07;font-weight:600}
#vf-aic .vf-aic-sent{display:flex;align-items:center;gap:6px;color:var(--aic-green-2);font-weight:700;font-size:13.5px}

/* Gợi ý */
#vf-aic .vf-aic-chips{display:flex;gap:7px;overflow-x:auto;padding:8px 14px 4px;background:var(--aic-bg);flex:none;scrollbar-width:none}
#vf-aic .vf-aic-chips::-webkit-scrollbar{display:none}
#vf-aic .vf-aic-chip{flex:none;padding:7px 12px;border-radius:999px;border:1px solid #b9dcc6;background:#fff;color:var(--aic-green);font-size:13px;font-weight:600;white-space:nowrap}
#vf-aic .vf-aic-chip:hover{background:var(--aic-mint);border-color:var(--aic-green-2)}

/* Ô nhập */
#vf-aic .vf-aic-input{display:flex;align-items:flex-end;gap:8px;padding:10px 12px 6px;background:#fff;border-top:1px solid var(--aic-line);flex:none;margin:0}
#vf-aic .vf-aic-input textarea{flex:1;resize:none;min-height:42px;max-height:120px;padding:10px 13px;border:1px solid #cfe2d6;border-radius:13px;background:#fff;font-size:14.5px;line-height:1.4;outline:none;width:auto;height:42px;display:block}
#vf-aic .vf-aic-input textarea:focus{border-color:var(--aic-green-2);box-shadow:0 0 0 3px rgba(9,132,67,.12)}
#vf-aic .vf-aic-send{width:42px;height:42px;border-radius:13px;background:var(--aic-orange);color:#fff;display:grid;place-items:center;flex:none}
#vf-aic .vf-aic-send:hover{background:#ec6408}
#vf-aic .vf-aic-send:disabled{background:#f5b78c;cursor:wait}
#vf-aic .vf-aic-note{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 12px 9px;background:#fff;font-size:11px;color:#7f9187;flex:none}
#vf-aic .vf-aic-note span{min-width:0}
#vf-aic .vf-aic-human{display:inline-flex;align-items:center;gap:4px;flex:none;padding:4px 9px;border-radius:999px;border:1px solid #f3cfae;background:#fff7ef;color:#a54600;font-size:12px;font-weight:700;white-space:nowrap}
#vf-aic .vf-aic-human:hover{background:#ffeedd}
#vf-aic.vf-aic-staff-on .vf-aic-human,#vf-aic.vf-aic-staff-on .vf-aic-human:hover{background:var(--aic-orange);border-color:var(--aic-orange);color:#fff}

/* Form báo giá */
#vf-aic .vf-aic-sheet{position:absolute;inset:0;display:flex;flex-direction:column;background:#fff;z-index:2;animation:vfAicSlide .2s ease}
@keyframes vfAicSlide{from{transform:translateX(18px);opacity:0}to{transform:none;opacity:1}}
#vf-aic .vf-aic-sheet-head{display:flex;align-items:center;gap:6px;padding:12px 14px 12px 8px;background:var(--aic-green);color:#fff;flex:none}
#vf-aic .vf-aic-sheet-head strong{font-size:15px;color:#fff}
#vf-aic .vf-aic-form{flex:1;min-height:0;overflow-y:auto;padding:14px 16px 18px;display:flex;flex-direction:column;gap:11px;margin:0}
#vf-aic .vf-aic-form-intro{font-size:13px;color:var(--aic-muted);background:var(--aic-mint);border-radius:10px;padding:9px 11px}
#vf-aic .vf-aic-form label{display:flex;flex-direction:column;gap:5px;font-size:13px;font-weight:600;color:var(--aic-ink);margin:0}
#vf-aic .vf-aic-form input,#vf-aic .vf-aic-form textarea{width:100%;padding:10px 12px;border:1px solid #cfe2d6;border-radius:10px;background:#fff;font-size:14.5px;font-weight:400;outline:none;height:auto;resize:vertical}
#vf-aic .vf-aic-form input:focus,#vf-aic .vf-aic-form textarea:focus{border-color:var(--aic-green-2);box-shadow:0 0 0 3px rgba(9,132,67,.12)}
#vf-aic .vf-aic-hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0}
#vf-aic .vf-aic-form-error{color:#b42318;background:#fef3f2;border-radius:9px;padding:8px 11px;font-size:13px;font-weight:600}
#vf-aic .vf-aic-submit{position:sticky;bottom:0;box-shadow:0 -10px 0 #fff;padding:12px;border-radius:11px;background:var(--aic-orange);color:#fff;font-weight:700;font-size:15px;text-align:center;margin-top:2px}
#vf-aic .vf-aic-submit:hover{background:#ec6408}
#vf-aic .vf-aic-submit:disabled{opacity:.7;cursor:wait}

/* Vị trí tránh nút "Tư vấn VIFOOD" và thanh gọi điện có sẵn */
@media (max-width:760px){
 #vf-aic.vf-aic-on-product{bottom:calc(66px + env(safe-area-inset-bottom))}
}
@media (max-width:600px){
 #vf-aic{right:12px;bottom:64px}
 #vf-aic.vf-aic-on-product{bottom:calc(66px + env(safe-area-inset-bottom))}
 #vf-aic .vf-aic-launcher{height:50px;padding:0 16px 0 13px}
 #vf-aic .vf-aic-panel{inset:0;right:0;bottom:0;width:100%;height:100%;height:100dvh;border-radius:0;border:0}
 #vf-aic .vf-aic-head{padding-top:calc(12px + env(safe-area-inset-top))}
 #vf-aic .vf-aic-note{padding-bottom:calc(9px + env(safe-area-inset-bottom))}
 #vf-aic .vf-aic-note span{font-size:10.5px}
 #vf-aic .vf-aic-input textarea{font-size:16px}
 #vf-aic .vf-aic-form input,#vf-aic .vf-aic-form textarea{font-size:16px}
 #vf-aic .vf-aic-open-quote span{display:none}
 #vf-aic .vf-aic-teaser{width:min(250px,calc(100vw - 24px))}
}
html.vf-aic-lock,html.vf-aic-lock body{overflow:hidden!important}
@media (prefers-reduced-motion:reduce){#vf-aic *{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{#vf-aic{display:none!important}}
/* V658: giỏ báo giá + ảnh báo giá */
#vf-aic .vf-aic-cart{border:1px solid var(--aic-line);border-radius:12px;padding:10px 12px;background:#fbfdfc}
#vf-aic .vf-aic-cart-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:6px;font-size:13.5px}
#vf-aic .vf-aic-cart-sum{font-weight:800;color:#d9480f;font-size:13.5px}
#vf-aic .vf-aic-cart-empty{font-size:12.5px;color:var(--aic-muted)}
#vf-aic .vf-aic-cart-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:8px;align-items:center;padding:8px 0;border-top:1px dashed #dfeae3}
#vf-aic .vf-aic-cart-row:first-child{border-top:0}
#vf-aic .vf-aic-cart-info{min-width:0;display:flex;flex-direction:column}
#vf-aic .vf-aic-cart-info strong{font-size:13px;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
#vf-aic .vf-aic-cart-info small{font-size:11.5px;color:var(--aic-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#vf-aic .vf-aic-qty{display:flex;align-items:center;gap:3px}
#vf-aic .vf-aic-qty button{width:26px;height:28px;border-radius:7px;background:var(--aic-mint);color:var(--aic-green);font-weight:800;font-size:16px;line-height:1}
#vf-aic .vf-aic-form .vf-aic-qty input{width:52px;height:28px;padding:2px 4px;text-align:center;font-size:14px;border-radius:7px;-moz-appearance:textfield}
#vf-aic .vf-aic-qty input::-webkit-outer-spin-button,#vf-aic .vf-aic-qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
#vf-aic .vf-aic-unit{font-size:12px;color:var(--aic-muted);min-width:28px}
#vf-aic .vf-aic-rm{width:24px;height:24px;border-radius:50%;color:#9aa8a0;font-size:18px;line-height:1}
#vf-aic .vf-aic-rm:hover{background:#fef3f2;color:#b42318}
#vf-aic .vf-aic-quote{width:92%;margin-top:8px;border:1px solid var(--aic-line);border-radius:13px;background:#fff;overflow:hidden}
#vf-aic .vf-aic-quote-head{display:flex;justify-content:space-between;gap:8px;padding:9px 12px;background:var(--aic-green);color:#fff;font-size:13px}
#vf-aic .vf-aic-quote-head strong{color:#fff}
#vf-aic .vf-aic-quote-img{padding:8px;background:#f1f5f2;min-height:60px;display:grid;place-items:center;font-size:12.5px;color:var(--aic-muted)}
#vf-aic .vf-aic-quote-img img{display:block;width:100%;height:auto;max-width:none;border-radius:6px;box-shadow:0 2px 10px rgba(0,0,0,.08)}
#vf-aic .vf-aic-quote-img a{display:block;width:100%}
#vf-aic .vf-aic-quote-actions{display:flex;gap:8px;padding:10px 12px;flex-wrap:wrap}
#vf-aic .vf-aic-qbtn{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:10px;border:1px solid #cfe2d6;color:var(--aic-green);font-weight:700;font-size:13px;text-decoration:none;background:#fff}
#vf-aic .vf-aic-qbtn-main{background:var(--aic-orange);border-color:var(--aic-orange);color:#fff}
#vf-aic .vf-aic-qbtn-main:hover{background:#ec6408}
/* V659: tìm thêm sản phẩm trong form báo giá */
#vf-aic .vf-aic-find{position:relative;margin-top:8px}
#vf-aic .vf-aic-form .vf-aic-find-input{padding:9px 12px 9px 34px;font-size:14px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%236b8577' stroke-width='2' viewBox='0 0 24 24'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E") no-repeat 11px center}
#vf-aic .vf-aic-find-res{margin-top:6px;border:1px solid var(--aic-line);border-radius:10px;background:#fff;max-height:230px;overflow-y:auto}
#vf-aic .vf-aic-find-row{display:flex;align-items:center;gap:8px;padding:8px 10px;border-top:1px solid #eef3f0}
#vf-aic .vf-aic-find-row:first-child{border-top:0}
#vf-aic .vf-aic-find-txt{flex:1;min-width:0;display:flex;flex-direction:column}
#vf-aic .vf-aic-find-txt strong{font-size:13px;line-height:1.3}
#vf-aic .vf-aic-find-txt small{font-size:11.5px;color:var(--aic-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#vf-aic .vf-aic-find-add{flex:none;padding:6px 10px;border-radius:8px;background:var(--aic-orange);color:#fff;font-size:12px;font-weight:700}
#vf-aic .vf-aic-find-add:disabled{background:var(--aic-mint);color:var(--aic-green);cursor:default}
#vf-aic .vf-aic-find-none{padding:10px 12px;font-size:12.5px;color:var(--aic-muted)}
#vf-aic .vf-aic-addcur{display:block;width:100%;margin-top:8px;padding:8px 10px;border:1px dashed #f3b98c;border-radius:9px;background:#fff7ef;color:#a54600;font-size:12.5px;font-weight:700;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#vf-aic .vf-aic-addcur:hover{background:#ffeedd}