#lbt-ai-chat{position:fixed;right:20px;bottom:20px;z-index:2147483000;font-family:Roboto,Arial,Helvetica,sans-serif}#lbt-ai-chat *,#lbt-ai-chat *:before,#lbt-ai-chat *:after{box-sizing:border-box}#lbt-ai-chat button{cursor:pointer;font:inherit}.lbt-chat-toggle{display:grid;place-items:center;width:62px;height:62px;border:2px solid #fff!important;border-radius:50%;background:#fff;box-shadow:0 20px 48px rgba(7,93,240,.36)}.lbt-chat-toggle span{display:grid;place-items:center;width:48px;height:48px;border-radius:50%;color:#fff;background:linear-gradient(135deg,#075df0,#00a7f5);font-size:12px;font-weight:900}.lbt-chat-panel{display:none;width:min(410px,calc(100vw - 28px));height:min(590px,calc(100vh - 34px));overflow:hidden;border:1px solid rgba(7,29,67,.1);border-radius:14px;background:#fff;box-shadow:0 32px 86px rgba(4,15,36,.26)}.lbt-chat-panel.is-open{display:flex;flex-direction:column}.lbt-chat-header{display:flex;align-items:center;justify-content:space-between;min-height:78px;padding:14px;color:#fff;background:radial-gradient(circle at 12% 22%,rgba(0,203,254,.26),transparent 30%),linear-gradient(135deg,#061a3a,#071d43 54%,#075df0 150%)}.lbt-chat-brand{display:flex;align-items:center;gap:10px}.lbt-chat-mark{display:block;width:44px;height:44px;object-fit:contain}.lbt-chat-title{display:grid;gap:3px}.lbt-chat-title span{font-size:17px;font-weight:900}.lbt-chat-title small{color:rgba(255,255,255,.76);font-size:12px;font-weight:700}.lbt-chat-actions{display:flex;gap:8px}.lbt-chat-reset,.lbt-chat-close{height:36px;border:1px solid rgba(255,255,255,.18)!important;border-radius:8px;color:#fff;background:rgba(255,255,255,.1)}.lbt-chat-reset{padding:0 10px;font-size:12px;font-weight:900}.lbt-chat-close{width:36px;font-size:25px}.lbt-chat-log{flex:1;padding:18px;overflow-y:auto;background:radial-gradient(circle at 100% 0%,rgba(7,93,240,.08),transparent 34%),linear-gradient(180deg,#f7faff,#fff)}.lbt-chat-message{max-width:90%;margin:0 0 12px;padding:12px 14px;border:1px solid rgba(7,29,67,.08);border-radius:10px;color:#27364d;background:#fff;box-shadow:0 12px 26px rgba(7,24,56,.08);font-size:14.5px;font-weight:500;line-height:1.56;white-space:pre-line}.lbt-chat-message.user{margin-left:auto;border-color:transparent;color:#fff;background:linear-gradient(135deg,#075df0,#0646bd);font-weight:600}.lbt-chat-supporting{margin:8px 0 0;color:#52647d;font-size:13px}.lbt-chat-action{display:flex;align-items:center;justify-content:center;min-height:38px;margin-top:10px;padding:8px 12px;border:1px solid #075df0;border-radius:8px;color:#075df0!important;background:#fff;font-size:13px;font-weight:900;text-align:center;text-decoration:none!important}.lbt-chat-action:first-of-type{color:#fff!important;background:#075df0}.lbt-chat-form{display:grid;grid-template-columns:minmax(0,1fr) 46px;gap:10px;padding:12px;border-top:1px solid rgba(7,29,67,.08);background:#fff}.lbt-chat-input{min-width:0;height:46px;padding:0 15px;border:1px solid #dce6f4;border-radius:8px;color:#071d43;background:#fff;font-size:14.5px;font-weight:600;outline:0}.lbt-chat-input:focus{border-color:#075df0;box-shadow:0 0 0 3px rgba(7,93,240,.12)}.lbt-chat-send{position:relative;height:46px;border:0;border-radius:8px;color:#fff;background:linear-gradient(135deg,#075df0,#00a7f5);font-size:0}.lbt-chat-send:after{content:"→";font-size:24px}.lbt-chat-form.is-busy{opacity:.72;pointer-events:none}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:520px){#lbt-ai-chat{right:12px;bottom:76px}.lbt-chat-panel{width:calc(100vw - 24px);height:min(620px,calc(100vh - 92px))}}

/* Refined LBT assistant panel and composer. */
.lbt-chat-panel{width:min(388px,calc(100vw - 28px));height:min(550px,calc(100vh - 34px));border:1px solid rgba(7,29,67,.12);border-radius:18px;box-shadow:0 30px 76px rgba(4,15,36,.3),0 8px 22px rgba(7,93,240,.09)}
.lbt-chat-header{min-height:76px;padding:12px 14px;background:radial-gradient(circle at 14% 18%,rgba(0,203,254,.3),transparent 32%),linear-gradient(135deg,#061a3a,#082650 58%,#075df0 150%)}
.lbt-chat-mark{width:42px;height:42px}.lbt-chat-title span{font-size:17px;letter-spacing:-.01em}.lbt-chat-title small{color:rgba(255,255,255,.8);font-size:11px}
.lbt-chat-reset,.lbt-chat-close{border-color:rgba(255,255,255,.22)!important;border-radius:10px;background:rgba(255,255,255,.1);transition:background-color .18s ease,transform .18s ease}.lbt-chat-reset:hover,.lbt-chat-close:hover{background:rgba(255,255,255,.2);transform:translateY(-1px)}.lbt-chat-reset:focus-visible,.lbt-chat-close:focus-visible{outline:3px solid rgba(112,228,248,.8);outline-offset:2px}
.lbt-chat-log{padding:16px;background:radial-gradient(circle at 100% 0%,rgba(7,93,240,.1),transparent 35%),linear-gradient(180deg,#f5f9ff,#fff 55%);scrollbar-color:#b9cce2 transparent;scrollbar-width:thin}
.lbt-chat-message{max-width:88%;margin-bottom:12px;padding:11px 13px;border-color:rgba(7,29,67,.09);border-radius:14px 14px 14px 5px;box-shadow:0 9px 22px rgba(7,24,56,.07);font-size:13.5px;line-height:1.55}.lbt-chat-message.user{border-radius:14px 14px 5px 14px;background:linear-gradient(135deg,#075df0,#0750cc);box-shadow:0 10px 23px rgba(7,93,240,.2)}
.lbt-chat-action{min-height:41px;border-radius:10px;transition:background-color .18s ease,color .18s ease,transform .18s ease}.lbt-chat-action:hover{transform:translateY(-1px)}
.lbt-chat-form{grid-template-columns:minmax(0,1fr) 68px;gap:9px;padding:11px;border-top-color:#dfe8f3;background:#f9fbfe;box-shadow:0 -9px 26px rgba(7,29,67,.04)}
.lbt-chat-input{height:46px;padding:0 14px;border-color:#cfddeb;border-radius:11px;background:#fff;font-size:13.5px;font-weight:500;transition:border-color .18s ease,box-shadow .18s ease}.lbt-chat-input::placeholder{color:#768aa0}.lbt-chat-input:hover{border-color:#aec4d8}.lbt-chat-input:focus{border-color:#087fc3;box-shadow:0 0 0 4px rgba(8,127,195,.12)}
.lbt-chat-send{display:inline-flex;height:46px;align-items:center;justify-content:center;gap:5px;padding:0 10px;border:0;border-radius:11px;color:#fff;background:linear-gradient(135deg,#087fc3,#075df0);box-shadow:0 10px 22px rgba(7,93,240,.27);font-size:10px!important;font-weight:900!important;letter-spacing:.04em;text-transform:uppercase;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease}.lbt-chat-send:after{content:"➤";font-size:15px;line-height:1;transform:rotate(-18deg)}.lbt-chat-send:hover{filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 14px 27px rgba(7,93,240,.33)}.lbt-chat-send:active{transform:translateY(0);box-shadow:0 7px 16px rgba(7,93,240,.24)}.lbt-chat-send:focus-visible{outline:3px solid rgba(0,166,214,.38);outline-offset:3px}
.lbt-chat-form.is-busy{opacity:1}.lbt-chat-form.is-busy .lbt-chat-input{opacity:.65}.lbt-chat-form.is-busy .lbt-chat-send{font-size:0!important;filter:saturate(.7);transform:none}.lbt-chat-form.is-busy .lbt-chat-send:after{width:18px;height:18px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;content:"";transform:none;animation:lbtChatSendSpin .8s linear infinite}
@keyframes lbtChatSendSpin{to{transform:rotate(360deg)}}
@media(max-width:520px){.lbt-chat-panel{height:min(550px,calc(100vh - 92px));border-radius:16px}.lbt-chat-log{padding:14px}.lbt-chat-form{grid-template-columns:minmax(0,1fr) 64px;padding:10px}.lbt-chat-input,.lbt-chat-send{height:45px}}
@media(prefers-reduced-motion:reduce){.lbt-chat-reset,.lbt-chat-close,.lbt-chat-action,.lbt-chat-input,.lbt-chat-send{transition:none}.lbt-chat-form.is-busy .lbt-chat-send:after{animation:none}}
.lbt-chat-sources{display:grid;gap:4px;margin-top:11px;padding-top:9px;border-top:1px solid rgba(7,29,67,.1)}.lbt-chat-sources-label{color:#52647d;font-size:11px;font-weight:900;letter-spacing:.04em;text-transform:uppercase}.lbt-chat-source{overflow:hidden;color:#075df0!important;font-size:12px;font-weight:700;line-height:1.35;text-decoration:underline!important;text-overflow:ellipsis;white-space:nowrap}.lbt-chat-source:hover{color:#0646bd!important}
.lbt-chat-copy{white-space:normal}.lbt-chat-copy p{margin:0 0 10px}.lbt-chat-copy p:last-child{margin-bottom:0}.lbt-chat-copy h3{margin:0 0 9px;color:#071d43;font-size:15px;line-height:1.35}.lbt-chat-copy ol,.lbt-chat-copy ul{margin:2px 0 11px;padding-left:23px}.lbt-chat-copy li{margin:0 0 7px;padding-left:2px}.lbt-chat-copy li:last-child{margin-bottom:0}.lbt-chat-copy code{padding:1px 4px;border-radius:4px;color:#071d43;background:#eef3fa;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.92em}