:root{--bt-ai-blue:#073f70;--bt-ai-blue-2:#0c5f9d;--bt-ai-yellow:#ffb000;--bt-ai-paper:#f4f8fb;--bt-ai-line:#d7e2ec;--bt-ai-text:#173b59}
body.bt-ai-advisor-active .bt-contact-bot{display:none!important}
#bt-advisor-root{position:fixed;right:22px;bottom:22px;z-index:999999;font-family:Arial,Helvetica,sans-serif;color:var(--bt-ai-text)}
#bt-advisor-root *{box-sizing:border-box}
#bt-advisor-launcher{display:flex;align-items:center;gap:11px;min-width:286px;padding:7px 19px 7px 7px;border:3px solid #f4df9b;border-radius:48px;background:linear-gradient(135deg,var(--bt-ai-blue),#07568d);color:#fff;box-shadow:0 10px 32px rgba(4,35,63,.3);cursor:pointer;text-align:left;transition:transform .2s ease,box-shadow .2s ease}
#bt-advisor-launcher:hover,#bt-advisor-launcher:focus-visible{transform:translateY(-2px);box-shadow:0 14px 36px rgba(4,35,63,.38);outline:3px solid rgba(255,176,0,.35);outline-offset:2px}
.bt-avatar{position:relative;display:flex;align-items:flex-end;justify-content:center;width:55px;height:55px;overflow:hidden;flex:none;border:2px solid var(--bt-ai-yellow);border-radius:50%;background:#eaf5fc}
.bt-avatar img{display:block;width:61px;max-width:none;height:61px;object-fit:contain;transform:translateY(4px)}
@media(prefers-reduced-motion:reduce){#bt-advisor-launcher{transition:none}}
.bt-launch-text{display:flex;flex-direction:column;gap:4px;line-height:1.05}
.bt-launch-text strong{font-size:15px;letter-spacing:.2px}.bt-launch-text small{font-size:12px;font-weight:700;opacity:.9}
#bt-advisor-panel{position:absolute;right:0;bottom:0;display:flex;flex-direction:column;width:420px;max-width:calc(100vw - 44px);height:min(680px,calc(100dvh - 44px));overflow:hidden;border:1px solid var(--bt-ai-line);border-radius:18px;background:#fff;box-shadow:0 18px 55px rgba(0,0,0,.27)}
#bt-advisor-panel.bt-hidden{display:none}
.bt-chat-header{display:flex;justify-content:space-between;align-items:flex-start;padding:13px 13px 13px;border-bottom:3px solid var(--bt-ai-yellow);background:linear-gradient(135deg,var(--bt-ai-blue),var(--bt-ai-blue-2));color:#fff}
.bt-chat-brand{display:flex;min-width:0;align-items:center;gap:10px}.bt-chat-logo{display:flex;width:126px;min-height:43px;align-items:center;padding:5px 7px;border-radius:9px;background:#fff}.bt-chat-logo img{display:block;width:100%;height:auto;object-fit:contain}
.bt-chat-header strong{display:block;margin-bottom:5px;font-size:18px}.bt-chat-header small{display:block;font-size:12px;font-weight:700;opacity:.92}
#bt-advisor-close{width:34px;height:34px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:28px;line-height:31px;cursor:pointer}
#bt-advisor-close:hover,#bt-advisor-close:focus-visible{background:rgba(255,255,255,.22);outline:2px solid #fff}
.bt-messages{flex:1;overflow:auto;padding:16px 14px 10px;background:linear-gradient(180deg,#f5f9fc,#eef4f8);scroll-behavior:smooth;overscroll-behavior:contain}
.bt-msg{max-width:91%;margin:0 0 10px;padding:11px 13px;border-radius:14px;font-size:14px;line-height:1.48;white-space:pre-wrap;overflow-wrap:anywhere}
.bt-msg.assistant{border:1px solid var(--bt-ai-line);border-top-left-radius:5px;background:#fff;color:#334b5e}.bt-msg.user{margin-left:auto;border-top-right-radius:5px;background:#dceefd;color:#103e64}
.bt-msg.bt-error{border-color:#efc9c9;background:#fff4f4;color:#8d2424}.bt-typing{opacity:.72;font-style:italic}
.bt-product{display:grid;grid-template-columns:82px minmax(0,1fr);gap:12px;margin:8px 0 12px;padding:11px;overflow:hidden;border:1px solid #cbdce9;border-left:4px solid var(--bt-ai-yellow);border-radius:14px;background:#fff;box-shadow:0 4px 14px rgba(7,63,112,.08)}
.bt-product img{width:82px;height:82px;object-fit:contain;border-radius:9px;background:#f5f7f9}
.bt-product-info{display:flex;min-width:0;flex-direction:column;align-items:flex-start;gap:7px}.bt-product-name{font-size:13px;line-height:1.3;color:var(--bt-ai-blue)}
.bt-product-price{font-size:15px;font-weight:800;color:#bf7800}.bt-product a{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:7px 11px;border-radius:8px;background:var(--bt-ai-blue-2);color:#fff!important;font-size:11px;font-weight:800;text-decoration:none!important}
.bt-product a:hover,.bt-product a:focus-visible{background:var(--bt-ai-blue);outline:2px solid rgba(255,176,0,.45)}
.bt-resource{display:block;margin:7px 0;padding:10px 12px;border:1px solid #d2e2ee;border-radius:10px;background:#fff;color:var(--bt-ai-blue)!important;font-size:12px;font-weight:700;text-decoration:none!important}
.bt-resource:before{content:'→';margin-right:7px;color:var(--bt-ai-yellow)}
.bt-human-help{display:flex;flex-direction:column;gap:7px;margin:10px 0;padding:12px;border-radius:12px;background:#fff5d8;font-size:12px}.bt-human-help a{color:var(--bt-ai-blue)!important;font-weight:800}
.bt-quick-actions{display:flex;gap:6px;overflow-x:auto;padding:9px 10px 4px;border-top:1px solid #e0e8ef;background:#fff;scrollbar-width:thin}
.bt-quick-actions[hidden]{display:none}.bt-quick-actions button{flex:none;min-height:33px;padding:6px 10px;border:1px solid #bcd2e3;border-radius:18px;background:#f5faff;color:var(--bt-ai-blue);font-size:11px;font-weight:700;cursor:pointer}.bt-quick-actions button:hover{border-color:var(--bt-ai-yellow);background:#fff8e5}
.bt-input-row{display:flex;gap:7px;padding:10px;border-top:1px solid #e0e8ef;background:#fff}
#bt-input{min-height:48px;max-height:110px;min-width:0;flex:1;resize:none;padding:12px;border:1px solid #cbd8e3;border-radius:11px;background:#fff;color:#263d50;font:14px/1.35 Arial,Helvetica,sans-serif;outline:none}
#bt-input:focus{border-color:var(--bt-ai-blue-2);box-shadow:0 0 0 3px rgba(12,95,157,.1)}
#bt-send{min-width:76px;padding:0 13px;border:0;border-radius:10px;background:var(--bt-ai-yellow);color:#173b59;font-size:12px;font-weight:900;cursor:pointer}#bt-send:hover{filter:brightness(.96)}#bt-send:disabled{opacity:.55;cursor:wait}
.bt-chat-footer{display:grid;grid-template-columns:auto auto;gap:4px 10px;align-items:center;padding:5px 10px 9px;background:#fff;color:#7b8995;font-size:10px}.bt-chat-footer span{grid-column:1/-1}.bt-chat-footer button,.bt-chat-footer a{padding:2px;border:0;background:transparent;color:var(--bt-ai-blue)!important;font-size:11px;font-weight:700;text-decoration:none!important;cursor:pointer}.bt-chat-footer a{text-align:right}
@media(max-width:600px){
 #bt-advisor-root{right:9px;bottom:9px;left:9px}
 #bt-advisor-launcher{width:auto;min-width:0;margin-left:auto;padding-right:13px}
 #bt-advisor-panel{position:fixed;right:9px;bottom:9px;left:9px;width:auto;max-width:none;height:min(690px,calc(100dvh - 18px));border-radius:15px}
 .bt-launch-text strong{font-size:13px}.bt-launch-text small{font-size:10px}.bt-avatar{width:49px;height:49px}.bt-avatar img{width:55px;height:55px}
 .bt-chat-header{padding:10px}.bt-chat-brand{gap:8px}.bt-chat-logo{width:105px;min-height:38px}.bt-chat-header strong{font-size:15px}.bt-chat-header small{font-size:10px}.bt-msg{max-width:94%}.bt-product{grid-template-columns:70px minmax(0,1fr)}.bt-product img{width:70px;height:70px}
}
@media(max-width:370px){.bt-launch-text{display:none}.bt-input-row{gap:5px}#bt-send{min-width:65px;padding:0 9px}.bt-chat-footer{grid-template-columns:1fr}.bt-chat-footer a{text-align:left}.bt-chat-footer span{grid-column:auto}}
.bt-chat-logo{flex:0 0 105px}.bt-chat-brand>div{min-width:0}.bt-chat-header strong,.bt-chat-header small{overflow-wrap:anywhere}.bt-messages{min-height:0}.bt-chat-header,.bt-chat-footer,.bt-input-row,.bt-quick-actions{flex-shrink:0}#bt-advisor-close{flex:0 0 34px}#bt-send{flex:0 0 auto}
@media(max-width:600px){#bt-input{font-size:16px}}
#bt-advisor-root{line-height:1.45}.bt-chat-header strong{line-height:1.35}.bt-chat-header small{line-height:1.45}.bt-chat-footer{line-height:1.5}.bt-quick-actions{flex-wrap:wrap;overflow:visible;padding-bottom:9px}.bt-quick-actions button{line-height:1.3}#bt-input{min-height:70px;overflow:auto}

/* Final visual treatment: transparent official logo on a continuous white header. */
#bt-advisor-root{bottom:max(22px,env(safe-area-inset-bottom));text-align:left}
#bt-advisor-panel{width:440px;height:min(700px,calc(var(--bt-ai-vh,100dvh) - 44px));border-radius:20px;box-shadow:0 18px 64px #062c4d38}
#bt-advisor-root .bt-chat-header{gap:12px;margin:0;padding:18px 18px 14px;border:0;border-top:4px solid var(--bt-ai-yellow);border-bottom:1px solid var(--bt-ai-line);background:#fff;color:var(--bt-ai-blue)}
.bt-chat-brand{flex-direction:column;align-items:flex-start;gap:9px}
.bt-chat-logo{display:block;flex:none;width:166px;max-width:100%;min-height:0;margin:0;padding:0;border:0;border-radius:0;background:transparent}
.bt-chat-logo img{width:100%;height:auto;max-height:none;object-fit:contain}
.bt-chat-header strong{margin:0 0 2px;font-size:17px;color:var(--bt-ai-blue)}
.bt-chat-header small{font-size:11px;font-weight:400;color:#526b7e;opacity:1}
#bt-advisor-close{display:flex;align-items:center;justify-content:center;flex:0 0 40px;width:40px;height:40px;margin:0;padding:0;border:1px solid var(--bt-ai-line);border-radius:12px;background:#f3f7fa;color:var(--bt-ai-blue);font:28px/1 Arial,Helvetica,sans-serif}
#bt-advisor-close:hover,#bt-advisor-close:focus-visible{background:#e5eef5;outline:2px solid var(--bt-ai-blue)}
.bt-messages{padding:18px 16px 12px;background:#f4f7fa;scrollbar-width:thin;scrollbar-color:#b6c9d9 transparent}
.bt-msg{max-width:94%;margin-bottom:14px;padding:13px 14px;font-size:14px;line-height:1.6}
.bt-msg.user{background:var(--bt-ai-blue);color:#fff}.bt-msg.assistant{color:#29475e}
.bt-product{grid-template-columns:76px minmax(0,1fr);gap:12px;margin:0 0 12px;padding:13px;border:1px solid #cbdce9;box-shadow:0 3px 10px #073f7008}
.bt-product img{width:76px;height:88px;align-self:center;object-fit:contain;background:#fff}
.bt-product-name{line-height:1.45;overflow-wrap:anywhere}.bt-product-price{font-size:14px;color:var(--bt-ai-blue);overflow-wrap:anywhere}
.bt-product a{min-height:40px;max-width:100%;padding:8px 12px;background:#fff3ce;color:var(--bt-ai-blue)!important;line-height:1.4;text-align:center;white-space:normal}.bt-product a:hover{background:#ffdf86}
.bt-quick-actions{padding:11px 14px;gap:6px}.bt-quick-actions button{flex:1 1 auto;min-width:0;min-height:40px;margin:0;white-space:normal;background:#f6f9fc}
.bt-input-row{align-items:stretch;gap:8px;padding:12px 14px 9px}
#bt-input{display:block;width:0;min-height:76px;max-height:110px;margin:0;font:16px/1.4 Arial,Helvetica,sans-serif;border-color:#b8cbd9}
#bt-input::placeholder{color:#667f92;opacity:1}
#bt-send{display:flex;align-items:center;justify-content:center;min-height:44px;margin:0;padding:10px 12px;line-height:1.4}
.bt-chat-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:5px 8px;padding:0 14px 13px;color:#5a7082}
.bt-chat-footer span{flex:0 0 100%;overflow-wrap:anywhere}.bt-chat-footer button,.bt-chat-footer a{display:inline-flex;align-items:center;min-height:34px;max-width:100%;margin:0;padding:4px 0;line-height:1.4;white-space:normal}
.bt-avatar{align-items:center}.bt-avatar img{width:48px;height:48px;max-width:100%;transform:none}
#bt-advisor-root button:focus-visible,#bt-advisor-root a:focus-visible{outline:3px solid #cf8900;outline-offset:2px}
@media(max-width:600px){
 #bt-advisor-root{bottom:max(9px,env(safe-area-inset-bottom))}
 #bt-advisor-panel{width:auto;max-width:none;height:min(720px,calc(var(--bt-ai-vh,100dvh) - 18px - env(safe-area-inset-bottom)));bottom:max(9px,env(safe-area-inset-bottom));border-radius:16px}
 #bt-advisor-root .bt-chat-header{padding:13px 13px 11px}.bt-chat-logo{width:150px;min-height:0;flex:none}.bt-chat-brand{gap:8px}.bt-chat-header strong{font-size:16px}.bt-chat-header small{font-size:10px}
 .bt-messages{padding:14px 11px 10px}.bt-msg{max-width:96%;padding:11px 12px}.bt-product{grid-template-columns:64px minmax(0,1fr);gap:10px;padding:11px}.bt-product img{width:64px;height:78px}
 .bt-input-row{padding:10px 11px 7px}.bt-chat-footer{padding:0 11px 11px}.bt-quick-actions{padding:9px 11px}.bt-avatar img{width:43px;height:43px}
}
@media(max-width:350px){#bt-send{min-width:64px;padding:8px}.bt-input-row{gap:6px}.bt-quick-actions button{font-size:10px;padding:7px}.bt-chat-header small{max-width:215px}}
@media(max-height:520px){
 #bt-advisor-root .bt-chat-header{padding:8px 12px}.bt-chat-brand{flex-direction:row;align-items:center;gap:10px}.bt-chat-logo{width:95px;flex:0 0 95px}.bt-chat-header strong{font-size:13px}.bt-chat-header small{display:none}
 .bt-input-row{padding-top:6px;padding-bottom:5px}#bt-input{min-height:46px;max-height:66px;padding:8px}.bt-chat-footer{padding-bottom:6px;gap:2px}.bt-quick-actions{padding-top:5px;padding-bottom:5px}.bt-quick-actions button{min-height:32px}.bt-chat-footer button,.bt-chat-footer a{min-height:28px}
}
#bt-advisor-root .bt-compact-viewport .bt-chat-header{padding:8px 12px}
.bt-compact-viewport .bt-chat-brand{flex-direction:row;align-items:center;gap:10px}.bt-compact-viewport .bt-chat-logo{width:95px;flex:0 0 95px}.bt-compact-viewport .bt-chat-header strong{font-size:13px}.bt-compact-viewport .bt-chat-header small,.bt-compact-viewport .bt-quick-actions{display:none}
.bt-compact-viewport .bt-input-row{padding-top:6px;padding-bottom:5px}.bt-compact-viewport #bt-input{min-height:46px;max-height:66px;padding:8px}.bt-compact-viewport .bt-chat-footer{padding-bottom:6px;gap:2px}.bt-compact-viewport .bt-chat-footer button,.bt-compact-viewport .bt-chat-footer a{min-height:28px}