:root{--bg:#fbfbfd;--sidebar:#f4f4f7;--surface:#fff;--surface-2:#eef0f4;--border:#e4e6eb;--text:#18181b;--muted:#6b7280;--accent:#4f46e5;--accent-strong:#4338ca;--accent-soft:#4f46e517;--danger:#dc2626;--warn-bg:#fff7ed;--warn-text:#9a3412;--code-bg:#f6f7f9;--shadow-sm:0 1px 2px #1018280d;--shadow-md:0 4px 16px #10182812, 0 1px 3px #1018280d;--radius:14px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;-webkit-font-smoothing:antialiased;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.65}:root[data-theme=dark]{--bg:#18181b;--sidebar:#111113;--surface:#232327;--surface-2:#2e2e33;--border:#34343a;--text:#ececf1;--muted:#a1a1aa;--accent:#818cf8;--accent-strong:#a5b4fc;--accent-soft:#818cf824;--warn-bg:#eab3081f;--warn-text:#facc15;--code-bg:#0f0f12;--shadow-sm:none;--shadow-md:0 4px 16px #00000059;--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(--text)}::selection{background:var(--accent-soft)}button{font:inherit;color:inherit;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}.muted{color:var(--muted)}.small{font-size:13px}.pad{padding:8px 12px}.grow{flex:1}.app{height:100%;display:flex;overflow:hidden}.main{flex-direction:column;flex:1;min-width:0;display:flex}.topbar{border-bottom:1px solid var(--border);background:color-mix(in srgb, var(--bg) 85%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);align-items:center;gap:8px;min-height:58px;padding:12px 24px;display:flex}.topbar h1{letter-spacing:-.01em;white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:15px;font-weight:600;overflow:hidden}.topbar .menu{display:none}.conversation{flex:1;padding:8px 16px 0;overflow-y:auto}.sidebar{background:var(--sidebar);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:268px;padding:12px 10px;display:flex}.brand{letter-spacing:-.02em;align-items:center;gap:10px;padding:6px 8px 16px;font-size:17px;font-weight:700;display:flex}.new-chat{background:var(--accent);color:#fff;width:100%;box-shadow:var(--shadow-sm);border:0;border-radius:11px;justify-content:center;align-items:center;gap:8px;padding:10px 12px;font-weight:600;transition:background .15s;display:flex}.new-chat:hover{background:var(--accent-strong)}.chat-list{flex-direction:column;flex:1;gap:2px;margin:14px 0;display:flex;overflow-y:auto}.chat-row{cursor:pointer;color:var(--muted);border-radius:10px;align-items:center;gap:10px;padding:8px 10px;display:flex}.chat-row:hover{background:var(--surface-2);color:var(--text)}.chat-row.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm)}.chat-title{white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:14px;overflow:hidden}.row-actions{gap:2px;display:none}.chat-row:hover .row-actions,.chat-row.active .row-actions{display:flex}.rename-input{background:var(--bg);width:100%;color:var(--text);border:1px solid var(--accent);font:inherit;border-radius:8px;padding:4px 8px}.sidebar-foot{margin:0;padding:0 8px}.theme-toggle{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--muted);border-radius:10px;align-items:center;gap:8px;margin-bottom:10px;padding:8px 10px;font-size:13px;display:flex}.theme-toggle:hover{color:var(--text)}.icon-button{color:var(--muted);background:0 0;border:0;border-radius:8px;justify-content:center;align-items:center;padding:6px;display:inline-flex}.icon-button:hover{background:var(--surface-2);color:var(--text)}.icon-button.danger:hover{color:var(--danger)}.welcome{text-align:center;max-width:760px;margin:9vh auto 0;padding:0 8px}.welcome h2{letter-spacing:-.03em;margin:0 0 10px;font-size:32px;font-weight:700}.welcome .badge{color:var(--accent);background:var(--accent-soft);border-radius:999px;margin-bottom:18px;padding:4px 12px;font-size:12.5px;font-weight:600;display:inline-block}.examples{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:10px;margin-top:28px;display:grid}.example{text-align:left;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);box-shadow:var(--shadow-sm);padding:14px 16px;font-size:14px;transition:transform .15s,box-shadow .15s,border-color .15s}.example:hover:not(:disabled){border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-1px)}.library-panel{text-align:left;margin:44px 0 32px}.library-head h2{letter-spacing:-.01em;margin:0 0 2px;font-size:15px;font-weight:650}.library-head p{margin:0 0 14px}.library-grid{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:10px;display:grid}.library-card{border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow-sm);flex-direction:column;padding:14px 16px 12px;display:flex}.library-card header{justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:8px;display:flex}.library-card h3{letter-spacing:-.01em;margin:0;font-size:14.5px;font-weight:650}.library-card .kind{color:var(--accent);background:var(--accent-soft);border-radius:999px;flex-shrink:0;padding:2px 8px;font-size:11px;font-weight:600}.doc-list{color:var(--text);flex:1;margin:0 0 10px;padding:0;font-size:13px;list-style:none}.doc-list li{white-space:nowrap;text-overflow:ellipsis;padding:1px 0;overflow:hidden}.doc-list li:before{content:"·";color:var(--muted);margin-right:7px}.library-card footer{border-top:1px solid var(--border);color:var(--muted);justify-content:space-between;gap:8px;padding-top:8px;font-size:12px;display:flex}.library-card footer a{color:var(--muted);align-items:center;gap:3px;text-decoration:none;display:inline-flex}.library-card footer a:hover{color:var(--accent)}.messages{flex-direction:column;gap:26px;max-width:780px;margin:0 auto;padding:8px 0 24px;display:flex}.message.user{justify-content:flex-end;display:flex}.message.user .bubble{background:var(--surface-2);white-space:pre-wrap;overflow-wrap:anywhere;border-radius:18px 18px 4px;max-width:75%;padding:10px 16px}.message.assistant{gap:14px;display:flex}.avatar{flex-shrink:0;padding-top:2px}.answer{flex:1;min-width:0}.markdown>:first-child{margin-top:0}.markdown>:last-child{margin-bottom:0}.markdown p,.markdown ul,.markdown ol{margin:0 0 12px}.markdown li{margin:4px 0}.markdown pre{background:var(--code-bg);border:1px solid var(--border);border-radius:10px;padding:12px 14px;font-size:13.5px;overflow-x:auto}.markdown code{font-family:JetBrains Mono,Consolas,monospace;font-size:.92em}.markdown :not(pre)>code{background:var(--surface);border-radius:6px;padding:1px 6px}.markdown table{border-collapse:collapse;margin:8px 0 12px;display:block;overflow-x:auto}.markdown th,.markdown td{border:1px solid var(--border);text-align:left;padding:6px 10px}.markdown.streaming>:last-child:after{content:"";vertical-align:-2px;background:var(--text);width:8px;height:16px;margin-left:3px;animation:1s step-end infinite blink;display:inline-block}@keyframes blink{50%{opacity:0}}.cite{background:var(--accent-soft);min-width:19px;height:19px;color:var(--accent);vertical-align:1px;border-radius:6px;justify-content:center;align-items:center;margin:0 2px;padding:0 5px;font-size:11.5px;font-weight:700;display:inline-flex}.thinking{color:var(--muted);align-items:center;gap:4px;height:26px;display:flex}.thinking span{background:var(--muted);border-radius:50%;width:6px;height:6px;animation:1.2s infinite pulse}.thinking span:nth-child(2){animation-delay:.2s}.thinking span:nth-child(3){animation-delay:.4s}.thinking em{margin-left:8px;font-size:14px;font-style:normal}@keyframes pulse{0%,to{opacity:.25}50%{opacity:1}}.note{color:var(--muted);margin:10px 0 0;font-size:13px}.note.warn{background:var(--warn-bg);color:var(--warn-text);border-radius:8px;padding:6px 10px;display:inline-block}.sources{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.source-card{border:1px solid var(--border);background:var(--surface);max-width:320px;box-shadow:var(--shadow-sm);border-radius:10px;align-items:center;gap:6px;padding:6px 11px 6px 7px;font-size:12.5px;display:flex}.source-name{white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.source-section{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.timings{margin-top:8px;font-size:12.5px}.link-button{color:var(--muted);background:0 0;border:0;padding:0}.link-button:hover{color:var(--text)}.timings table{border-collapse:collapse;color:var(--muted);margin-top:6px}.timings td{padding:2px 16px 2px 0}.timings td.num{text-align:right;font-variant-numeric:tabular-nums}.composer-wrap{padding:0 16px 10px}.composer{background:var(--surface);border:1px solid var(--border);max-width:780px;box-shadow:var(--shadow-md);border-radius:22px;margin:0 auto;padding:10px 12px 8px;transition:border-color .15s}.composer:focus-within{border-color:color-mix(in srgb, var(--accent) 45%, var(--border))}.composer textarea{resize:none;width:100%;color:var(--text);font:inherit;background:0 0;border:0;outline:none;max-height:200px;padding:6px 8px}.composer-bar{align-items:center;gap:6px;display:flex}.library-switch{border:1px solid var(--border);color:var(--muted);background:0 0;border-radius:999px;align-items:center;gap:7px;padding:4px 6px 4px 10px;font-size:13px;transition:color .15s,border-color .15s,background .15s;display:inline-flex}.library-switch:hover{color:var(--text)}.library-switch.on{color:var(--accent);border-color:color-mix(in srgb, var(--accent) 35%, var(--border));background:var(--accent-soft)}.switch-track{background:var(--border);border-radius:999px;width:28px;height:16px;transition:background .15s;position:relative}.switch-dot{width:12px;height:12px;box-shadow:var(--shadow-sm);background:#fff;border-radius:50%;transition:transform .15s;position:absolute;top:2px;left:2px}.library-switch.on .switch-track{background:var(--accent)}.library-switch.on .switch-dot{transform:translate(12px)}.library-switch.locked{cursor:default;background:var(--surface-2);padding-right:10px}.send{background:var(--accent);color:#fff;border:0;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;transition:background .15s;display:inline-flex}.send:hover:not(:disabled){background:var(--accent-strong)}.send.stop{background:var(--text);color:var(--bg)}.disclaimer{text-align:center;color:var(--muted);margin:8px 0 0;font-size:12px}.file-row{flex-wrap:wrap;gap:8px;padding:2px 4px 8px;display:flex}.file-chip{background:var(--sidebar);border:1px solid var(--border);border-radius:12px;align-items:center;gap:8px;max-width:260px;padding:8px 30px 8px 10px;display:flex;position:relative}.file-chip.failed{border-color:var(--danger)}.file-text{flex-direction:column;min-width:0;line-height:1.25;display:flex}.file-name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.file-detail{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:11.5px;overflow:hidden}.file-chip .ok{color:var(--accent);display:inline-flex}.file-chip .bad{color:var(--danger);display:inline-flex}.chip-close{color:var(--muted);background:0 0;border:0;border-radius:6px;padding:2px;display:inline-flex;position:absolute;top:4px;right:4px}.chip-close:hover{background:var(--surface-2);color:var(--text)}.spinner{border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;flex-shrink:0;width:14px;height:14px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.error-bar{background:var(--warn-bg);width:calc(100% - 32px);max-width:780px;color:var(--warn-text);cursor:pointer;border-radius:10px;margin:0 auto 8px;padding:8px 12px;font-size:13.5px}.drop-overlay{background:var(--accent-soft);border:3px dashed var(--accent);pointer-events:none;z-index:50;justify-content:center;align-items:center;font-size:20px;font-weight:600;display:flex;position:fixed;inset:0}.drop-overlay div{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-md);padding:18px 26px}@media (width<=800px){.sidebar{z-index:40;transition:transform .2s;position:fixed;inset:0 auto 0 0;transform:translate(-100%)}.sidebar.open{transform:none}.scrim{z-index:30;background:#00000073;position:fixed;inset:0}.topbar .menu{display:inline-flex}.topbar{padding:10px 12px}.conversation,.composer-wrap{padding-left:12px;padding-right:12px}.message.user .bubble{max-width:88%}.welcome{margin-top:6vh}}