:root{--accent:#4f46e5;--accent-hover:#4338ca;--accent-soft:#eef0ff;--accent-ring:#4f46e559;--bg:#f7f7f9;--surface:#fff;--border:#e3e2e8;--text:#1f1f27;--text-muted:#6b6b76;--good:#0f8a4c;--good-bg:#e6f7ee;--warn:#a06a00;--warn-bg:#fff6e0;--bad:#b3261e;--bad-bg:#fdeceb}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,Segoe UI,Roboto,sans-serif}#root{min-height:100svh}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.chat-app{flex-direction:column;align-items:center;height:100svh;display:flex}.header{z-index:10;background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:12px;width:100%;padding:10px 20px;display:flex;position:sticky;top:0}.header-icon{background:var(--accent-soft);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.1rem;display:flex}.header-text{flex:1;min-width:0}.header-text h1{color:var(--text);margin:0;font-size:1rem;font-weight:600;line-height:1.3}.header-text p{color:var(--text-muted);margin:0;font-size:.75rem}.header-status{color:var(--text-muted);flex-shrink:0;align-items:center;gap:6px;font-size:.75rem;display:flex}.status-dot{background:var(--good);width:7px;height:7px;box-shadow:0 0 0 3px var(--good-bg);border-radius:50%}.chat-wrapper{flex-direction:column;flex:1;width:100%;max-width:700px;min-height:0;padding:0 16px 16px;display:flex}.input-row{align-items:flex-end;gap:8px;display:flex;position:relative}@media (width<=480px){.chat-wrapper{max-width:none;padding:0 8px 8px}}@keyframes msg-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.msg{align-items:flex-end;gap:8px;max-width:80%;animation:.15s ease-out msg-in;display:flex}.msg.user{flex-direction:row-reverse;align-self:flex-end}.msg.bot{align-self:flex-start}.avatar{background:var(--accent-soft);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:26px;height:26px;font-size:.85rem;display:flex}.bubble{word-break:break-word;border-radius:14px;padding:12px 16px;font-size:.875rem;line-height:1.65;position:relative}.msg.user .bubble{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg.bot .bubble{background:var(--surface);border:1px solid var(--border);border-bottom-left-radius:4px}.msg.bot.escalated .bubble{background:var(--warn-bg);border-left:3px solid #f0a500}.timestamp{color:var(--text-muted);opacity:0;margin-top:4px;font-size:.65rem;transition:opacity .12s;display:block}.msg.user .timestamp{color:#ffffffbf}.bubble:hover .timestamp{opacity:1}.meta-row{align-items:center;gap:6px;margin-top:8px;display:flex}.confidence-badge{border-radius:999px;padding:2px 9px;font-size:.7rem;font-weight:600}.confidence-badge.high{color:var(--good);background:var(--good-bg)}.confidence-badge.medium{color:var(--warn);background:var(--warn-bg)}.confidence-badge.low{color:var(--bad);background:var(--bad-bg)}.escalated-badge{color:var(--warn);font-size:.7rem}.sources{margin-top:8px}.sources-toggle{color:var(--accent);cursor:pointer;background:0 0;border:none;padding:0;font-family:inherit;font-size:.75rem}.sources-list{flex-wrap:wrap;gap:6px;margin-top:6px;display:flex}.source-chip{background:var(--bg);border:1px solid var(--border);color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;border-radius:999px;max-width:200px;padding:4px 10px;font-size:.7rem;overflow:hidden}.retrieving{gap:4px;padding:4px 0;display:flex}.retrieving .dot{background:var(--text-muted);border-radius:50%;width:6px;height:6px;animation:1.1s ease-in-out infinite bounce}.retrieving .dot:nth-child(2){animation-delay:.15s}.retrieving .dot:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.status-msg,.resolved-msg{border-radius:8px;align-self:flex-start;max-width:90%;padding:8px 14px;font-size:.8rem}.status-msg{color:var(--warn);background:var(--warn-bg)}.resolved-msg{color:var(--good);background:var(--good-bg)}#chat-box{scroll-behavior:smooth;flex-direction:column;flex:1;gap:14px;min-height:0;padding:20px 16px;display:flex;overflow-y:auto}.chat-empty{color:var(--text-muted);text-align:center;margin:auto;font-size:.9rem}.input-bar{background:var(--surface);border:1px solid var(--border);border-radius:24px;flex:1;align-items:flex-end;gap:8px;padding:8px 8px 8px 18px;display:flex}#query-input{resize:none;background:0 0;border:none;outline:none;flex:1;max-height:120px;padding:6px 0;font-family:inherit;font-size:.875rem;line-height:1.5}.input-bar:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}#send-btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:38px;height:38px;transition:background .12s;display:flex}#send-btn:hover:not(:disabled){background:var(--accent-hover)}#send-btn:disabled{opacity:.4;cursor:not-allowed}#ask-human-btn{background:var(--surface);border:1px solid var(--border);cursor:pointer;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.05rem;display:flex;position:relative}#ask-human-btn:hover{border-color:var(--accent)}#ask-human-btn:hover:after{content:attr(data-tooltip);background:var(--text);color:#fff;white-space:nowrap;pointer-events:none;border-radius:6px;margin-bottom:8px;padding:5px 10px;font-size:.7rem;position:absolute;bottom:100%;left:50%;transform:translate(-50%)}#escalate-panel{background:var(--surface);border:1px solid var(--border);opacity:0;visibility:hidden;border-radius:14px;width:300px;max-height:60vh;padding:18px;transition:opacity .15s,transform .15s,visibility .15s;position:absolute;bottom:calc(100% + 12px);left:0;overflow-y:auto;transform:translateY(6px);box-shadow:0 12px 32px #0000001f}#escalate-panel.open{opacity:1;visibility:visible;transform:translateY(0)}.panel-title{color:var(--accent);margin-bottom:3px;font-size:.9rem;font-weight:600}.panel-sub{color:var(--text-muted);margin-bottom:14px;font-size:.75rem}.panel-divider{border:none;border-top:1px solid var(--border);margin-bottom:14px}#query-list{flex-direction:column;gap:8px;margin-bottom:16px;display:flex}.query-item{border:1px solid var(--border);cursor:pointer;border-radius:8px;padding:10px 12px;font-size:.8rem;line-height:1.4}.query-item.selected{border-color:var(--accent);background:var(--accent-soft)}.panel-empty{color:var(--text-muted);text-align:center;padding:24px 0;font-size:.8rem}.panel-btn{cursor:pointer;border:none;border-radius:8px;width:100%;margin-bottom:8px;padding:10px;font-family:inherit;font-size:.8rem;font-weight:600}.panel-btn:disabled{opacity:.5;cursor:not-allowed}.panel-btn.primary{background:var(--accent);color:#fff}.panel-btn.secondary{background:var(--bg)}@media (width<=480px){#escalate-panel{width:calc(100vw - 32px);left:-4px}}