:root{--bg:#0f1115;--panel:#171a21;--border:#262b36;--text:#e6e8ec;--muted:#9aa3b2;--accent:#3b82f6;--danger:#ef4444}*{box-sizing:border-box}html,body{background:var(--bg);height:100%;color:var(--text);margin:0;padding:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,Helvetica,Arial,sans-serif}a{color:var(--accent)}.center{place-items:center;min-height:100vh;padding:2rem;display:grid}.card{background:var(--panel);border:1px solid var(--border);text-align:center;border-radius:12px;width:100%;max-width:420px;padding:2rem}.btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;align-items:center;gap:.5rem;padding:.7rem 1.2rem;font-size:.95rem;text-decoration:none;display:inline-flex}.btn.secondary{border:1px solid var(--border);color:var(--text);background:0 0}.notice{border-radius:8px;margin-bottom:1rem;padding:.75rem 1rem;font-size:.9rem}.notice.danger{border:1px solid var(--danger);color:#fca5a5;background:rgba(239,68,68,.12)}.app-header{border-bottom:1px solid var(--border);background:var(--panel);justify-content:space-between;align-items:center;padding:.75rem 1.25rem;display:flex}.connect-banner{border-bottom:1px solid var(--accent);background:rgba(59,130,246,.12);justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 1.25rem;font-size:.9rem;display:flex}.chat-layout{height:100%;min-height:0;display:flex}.sidebar{border-right:1px solid var(--border);background:#12151c;flex-direction:column;flex-shrink:0;width:260px;display:flex;overflow:hidden}.sidebar-top{flex-direction:column;gap:.5rem;padding:.75rem;display:flex}.new-chat{justify-content:center}.env-select{background:var(--bg);color:var(--text);border:1px solid var(--border);font:inherit;border-radius:8px;padding:.5rem .6rem;font-size:.85rem}.conv-env{letter-spacing:.02em;color:var(--muted);background:rgba(127,127,127,.12);border:1px solid rgba(127,127,127,.28);border-radius:999px;margin-top:4px;padding:1px 7px;font-size:.66rem;font-weight:600;line-height:1.5;display:inline-block}.env-status{color:var(--muted);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:1rem;padding:.5rem 1rem;font-size:.82rem;display:flex}.env-status strong{color:var(--text)}.env-status .btn{white-space:nowrap;flex-shrink:0}.env-status-warn{color:var(--text);background:rgba(245,158,11,.12);border-bottom-color:rgba(245,158,11,.35)}.env-status-error{color:var(--danger);font-style:normal}.spinner{border:2px solid var(--muted);vertical-align:-.1em;border-top-color:transparent;border-radius:50%;width:.8em;height:.8em;animation:.8s linear infinite env-spin;display:inline-block}@keyframes env-spin{to{transform:rotate(360deg)}}.conv-list{flex-direction:column;flex:1;gap:2px;padding:0 .5rem .75rem;display:flex;overflow-y:auto}.conv-item{cursor:pointer;color:var(--text);border-radius:8px;justify-content:space-between;align-items:center;gap:.5rem;padding:.55rem .6rem;font-size:.9rem;display:flex}.conv-item:hover{background:rgba(255,255,255,.05)}.conv-item.active{background:rgba(59,130,246,.18)}.conv-title{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.conv-actions{gap:.15rem;display:none}.conv-item:hover .conv-actions{display:flex}.conv-actions button{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:.1rem .25rem;font-size:.85rem}.conv-actions button:hover{color:var(--text);background:rgba(255,255,255,.1)}.chat-main{flex-direction:column;flex:1;min-width:0;display:flex}.thread{flex-direction:column;flex:1;width:100%;max-width:820px;min-height:0;margin:0 auto;display:flex}.thread-viewport{flex-direction:column;flex:1;gap:1rem;padding:1.5rem 1rem;display:flex;overflow-y:auto}.thread-empty{color:var(--muted);text-align:center;margin:auto}.msg{display:flex}.msg-user{justify-content:flex-end}.msg-assistant{justify-content:flex-start}.bubble{white-space:pre-wrap;border-radius:12px;max-width:80%;padding:.7rem 1rem;line-height:1.45}.bubble.markdown{white-space:normal}.bubble-user{background:var(--accent);color:#fff;border-bottom-right-radius:4px}.bubble-assistant{background:var(--panel);border:1px solid var(--border);border-bottom-left-radius:4px}.composer{border-top:1px solid var(--border);gap:.5rem;padding:.75rem 1rem 1.25rem;display:flex}.composer-input{resize:none;background:var(--bg);color:var(--text);border:1px solid var(--border);font:inherit;border-radius:8px;flex:1;min-height:2.6rem;max-height:8rem;padding:.7rem .9rem}.composer-input:focus{border-color:var(--accent);outline:none}.thread{position:relative}.tools-toggle{z-index:5;color:var(--muted);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none;align-items:center;gap:.35rem;font-size:.75rem;display:flex;position:absolute;top:.45rem;right:1.25rem}.tool-call{display:none}.show-tools .tool-call{border:1px solid var(--border);background:rgba(255,255,255,.03);border-radius:8px;margin:.4rem 0;font-size:.82rem;display:block}.tool-call summary{cursor:pointer;color:var(--muted);padding:.35rem .6rem;list-style-position:inside}.tool-call[open] summary{border-bottom:1px solid var(--border)}.tool-call-name{color:var(--text);font-family:var(--font-mono,ui-monospace,monospace)}.tool-call-body{padding:.4rem .6rem}.tool-call-label{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:.3rem 0 .15rem;font-size:.72rem}.tool-call-body pre{border:1px solid var(--border);background:#0b0d12;border-radius:6px;max-height:16rem;margin:0;padding:.4rem .6rem;font-size:.78rem;overflow:auto}.chart{max-width:640px;margin:.5rem 0}.chart svg{width:100%;height:auto;display:block}.chart-title{fill:var(--text);font-size:13px;font-weight:600}.chart-grid{stroke:var(--border);stroke-width:1px}.chart-tick{fill:var(--muted);font-size:10px}.chart-bar{fill:var(--accent);opacity:.85}.chart-value{fill:var(--text);font-size:10px}.chart-line{stroke:var(--accent);stroke-width:2px}.chart-dot{fill:var(--accent)}.csv-chip{color:var(--muted);border:1px solid var(--border);cursor:pointer;background:rgba(255,255,255,.04);border-radius:999px;align-items:center;gap:.3rem;margin:.25rem .4rem .25rem 0;padding:.2rem .55rem;font-size:.75rem;display:inline-flex}.csv-chip:hover{color:var(--text);border-color:var(--accent)}.tool-call-hint{color:var(--muted);align-items:center;gap:.4rem;padding:.15rem 0;font-size:.8rem;display:flex}.show-tools .tool-call-hint{display:none}.markdown>:first-child{margin-top:0}.markdown>:last-child{margin-bottom:0}.markdown h1,.markdown h2,.markdown h3{margin:.8em 0 .4em;line-height:1.25}.markdown p{margin:.5em 0}.markdown ul,.markdown ol{margin:.5em 0;padding-left:1.4em}.markdown li{margin:.2em 0}.markdown code{background:rgba(255,255,255,.08);border-radius:4px;padding:.1em .35em;font-size:.9em}.markdown pre{border:1px solid var(--border);background:#0b0d12;border-radius:8px;padding:.8rem 1rem;overflow-x:auto}.markdown pre code{background:0 0;padding:0}.markdown table{border-collapse:collapse;width:100%;margin:.5em 0}.markdown th,.markdown td{border:1px solid var(--border);text-align:left;padding:.4em .6em}.markdown a{color:var(--accent)}.markdown blockquote{border-left:3px solid var(--border);color:var(--muted);margin:.5em 0;padding-left:.8em}.chart-series-0{fill:#2563eb}.chart-series-1{fill:#f59e0b}.chart-series-2{fill:#10b981}.chart-series-3{fill:#ef4444}.chart-series-4{fill:#8b5cf6}.chart-series-5{fill:#ec4899}.chart-series-6{fill:#14b8a6}.chart-series-7{fill:#64748b}.chart-series-stroke-0{stroke:#2563eb}.chart-series-stroke-1{stroke:#f59e0b}.chart-series-stroke-2{stroke:#10b981}.chart-series-stroke-3{stroke:#ef4444}.chart-series-stroke-4{stroke:#8b5cf6}.chart-series-stroke-5{stroke:#ec4899}.chart-series-stroke-6{stroke:#14b8a6}.chart-series-stroke-7{stroke:#64748b}