:root{--bg:#f5f6f8;--panel:#fff;--ink:#1b2130;--muted:#5c6577;--line:#e1e5ec;--user:#eef1f6;--code:#f0f2f6;--accent:#35c;--on-accent:#fff;--danger:#b42318;--radius:12px;--sidebar:280px;--column:760px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font:15px/1.6 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Helvetica,Arial,sans-serif}@media (prefers-color-scheme:dark){:root{--bg:#0f1115;--panel:#171a21;--ink:#e7eaf0;--muted:#9aa3b4;--line:#272c36;--user:#222734;--code:#1d212a;--danger:#ff8a7a;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--ink)}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:default;opacity:.5}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}.muted{color:var(--muted)}.boot{place-items:center;height:100%;display:grid}.app{grid-template-columns:var(--sidebar) 1fr;height:100%;display:grid}.main{background:var(--bg);min-width:0;height:100%;color:var(--ink);flex-direction:column;display:flex}.column{width:100%;max-width:var(--column);margin:0 auto;padding:0 20px}.scroll{flex:1;padding:24px 0 8px;overflow-y:auto}.topbar{border-bottom:1px solid var(--line);background:var(--bg);height:52px;color:var(--ink);align-items:center;gap:12px;padding:0 16px;display:flex}.topbar-title{text-overflow:ellipsis;white-space:nowrap;flex:1;font-weight:600;overflow:hidden}.who{white-space:nowrap;font-size:13px}.menu-btn{display:none}.sidebar{background:var(--panel);height:100%;color:var(--ink);border-right:1px solid var(--line);flex-direction:column;min-width:0;display:flex}.brand{align-items:center;gap:10px;padding:16px 16px 12px;display:flex}.brand-logo{object-fit:contain;background:#fff;border-radius:8px;width:32px;height:32px}.brand-initial{background:var(--accent);color:var(--on-accent);place-items:center;font-weight:700;display:grid}.brand-name{text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:650;overflow:hidden}.new-chat{text-align:left;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:10px;margin:0 12px 12px;padding:9px 12px;font-size:14px;font-weight:600}.new-chat:hover{border-color:var(--accent)}.chat-list{flex:1;padding:0 8px 8px;overflow-y:auto}.group-label{letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:14px 8px 4px;font-size:11.5px;font-weight:650}.chat-list 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0;border:0;border-radius:6px;place-items:center;font-size:14px;display:inline-grid}.icon-btn:hover{color:var(--ink);background:var(--line)}.link-btn{color:var(--accent);background:0 0;border:0;padding:0;font-weight:600}.msg{margin:0 0 22px}.msg.user{justify-content:flex-end;display:flex}.bubble{background:var(--user);max-width:85%;color:var(--ink);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:18px;padding:10px 14px}.msg.assistant{color:var(--ink)}.msg-tools{opacity:0;margin-top:4px;transition:opacity .15s}.msg.assistant:hover .msg-tools,.msg-tools:focus-within{opacity:1}.tool-btn{border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:6px;padding:2px 8px;font-size:12px}.status-line{color:var(--muted);align-items:center;gap:8px;font-size:14px;font-style:italic;display:flex}.dots{background:radial-gradient(circle, var(--muted) 2px, transparent 2.5px) 0 0 / 6px 6px repeat-x;width:18px;height:6px;animation:1s steps(3,end) infinite dots}@keyframes dots{0%{width:6px}to{width:24px}}@media (prefers-reduced-motion:reduce){.dots{width:18px;animation:none}}.empty{text-align:center;padding-top:12vh}.empty h1{color:var(--ink);text-wrap:balance;margin:0 0 6px;font-size:26px}.examples{text-align:left;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:26px;display:grid}.example{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);color:var(--ink);padding:12px 14px;font-size:14px;line-height:1.4}.example:hover{border-color:var(--accent)}.form-error{color:var(--danger);font-size:14px}.md>:first-child{margin-top:0}.md-p{overflow-wrap:anywhere;margin:0 0 12px}.md-h{color:var(--ink);margin:18px 0 8px;line-height:1.3}h3.md-h{font-size:18px}h4.md-h{font-size:16px}h5.md-h{font-size:15px}.md-list{margin:0 0 12px;padding-left:22px}.md-list li{margin:2px 0}.md-quote{border-left:3px solid var(--line);color:var(--muted);margin:0 0 12px;padding:2px 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20px;font-size:12px}.card-backdrop{z-index:20;background:#00000059;place-items:center;padding:16px;display:grid;position:fixed;inset:0}.member-card{border-radius:var(--radius);background:var(--panel);width:min(420px,100%);color:var(--ink);padding:20px 22px;position:relative;box-shadow:0 12px 40px #00000040}.card-close{position:absolute;top:10px;right:10px}.card-handle{color:var(--accent);font-size:13px;font-weight:650}.card-name{margin:2px 0 12px;font-size:19px}.card-rows{gap:6px;margin:0;display:grid}.card-rows div{grid-template-columns:130px 1fr;gap:8px;font-size:14px;display:grid}.card-rows dt{color:var(--muted)}.card-rows dd{overflow-wrap:anywhere;font-variant-numeric:tabular-nums;margin:0}.auth{background:var(--bg);min-height:100%;color:var(--ink);place-items:center;padding:24px 16px;display:grid}.auth-box{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);width:min(400px,100%);color:var(--ink);padding:28px 26px}.auth-mark{color:var(--accent);letter-spacing:.04em;text-transform:uppercase;font-size:13px;font-weight:700}.auth h1{margin:4px 0 16px;font-size:22px}.field{gap:4px;margin-bottom:12px;display:grid}.field label{color:var(--ink);font-size:13px;font-weight:600}.field input{border:1px solid var(--line);background:var(--panel);color:var(--ink);font:inherit;border-radius:8px;padding:10px 12px}.field input:focus{border-color:var(--accent);outline:none}.primary{background:var(--accent);width:100%;color:var(--on-accent);border:0;border-radius:8px;margin-top:4px;padding:10px;font-weight:650}.auth-foot{color:var(--muted);margin-top:16px;font-size:14px}@media (width<=860px){.app{grid-template-columns:1fr}.menu-btn{display:inline-grid}.who{display:none}.sidebar{z-index:30;width:min(300px,86vw);transition:transform .2s;position:fixed;inset:0 auto 0 0;transform:translate(-100%)}.sidebar.open{transform:none}.drawer-backdrop{z-index:25;background:#00000059;position:fixed;inset:0}.examples{grid-template-columns:1fr}.column{padding:0 16px}.bubble{max-width:92%}}@media (prefers-reduced-motion:reduce){.sidebar{transition:none}}