:root{--bg: #fafaf8;--bg-elev: #ffffff;--bg-sidebar: #f4f3f0;--bg-input: #ffffff;--fg: #1c1c1a;--fg-muted: #5e5e58;--fg-faint: #97978f;--line: rgba(28, 28, 26, .08);--line-strong: rgba(28, 28, 26, .14);--accent: oklch(.55 .13 255);--accent-soft: oklch(.95 .025 255);--accent-fg: #ffffff;--user-bubble: #1c1c1a;--user-bubble-fg: #fafaf8;--cite-bg: oklch(.96 .012 255);--cite-fg: oklch(.42 .13 255);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 8px 24px rgba(0, 0, 0, .08);--radius: 10px;--radius-lg: 14px;--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--font-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;--font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;--font-display: var(--font-sans);--row-pad: 14px;--msg-gap: 24px;--content-max: 760px}[data-theme=dark]{--bg: #14141a;--bg-elev: #1c1c22;--bg-sidebar: #101015;--bg-input: #1c1c22;--fg: #f0efea;--fg-muted: #a3a39c;--fg-faint: #6b6b65;--line: rgba(255, 255, 255, .07);--line-strong: rgba(255, 255, 255, .14);--accent: oklch(.72 .13 255);--accent-soft: oklch(.28 .05 255);--user-bubble: #f0efea;--user-bubble-fg: #14141a;--cite-bg: oklch(.24 .05 255);--cite-fg: oklch(.82 .1 255)}[data-theme=amt]{--bg: #f5f3ed;--bg-elev: #fbfaf5;--bg-sidebar: #ebe7dd;--bg-input: #fbfaf5;--fg: #16202c;--fg-muted: #4a5363;--fg-faint: #8a8f97;--line: rgba(22, 32, 44, .1);--line-strong: rgba(22, 32, 44, .18);--accent: oklch(.42 .11 250);--accent-soft: oklch(.93 .03 250);--user-bubble: oklch(.42 .11 250);--user-bubble-fg: #fbfaf5;--cite-bg: oklch(.94 .025 250);--cite-fg: oklch(.38 .12 250);--font-display: var(--font-serif);--radius: 4px;--radius-lg: 6px;--shadow-sm: 0 1px 0 rgba(22, 32, 44, .04);--shadow-md: 0 2px 8px rgba(22, 32, 44, .08)}[data-type=serif]{--font-display: var(--font-serif)}[data-density=compact]{--row-pad: 8px;--msg-gap: 16px}[data-density=comfy]{--row-pad: 18px;--msg-gap: 32px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;overflow:hidden}body{font-family:var(--font-sans);font-size:14.5px;line-height:1.55;color:var(--fg);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font-family:inherit}.setup-missing-env{padding:32px 24px;max-width:560px;margin:0 auto;line-height:1.55;color:var(--fg)}.setup-missing-env h1{font-size:1.25rem;margin:0 0 12px}.setup-missing-env p{margin:0 0 12px;color:var(--fg-muted)}.setup-missing-env code{font-family:var(--font-mono);font-size:.92em;background:var(--cite-bg);color:var(--cite-fg);padding:1px 6px;border-radius:4px}.app{display:grid;grid-template-columns:280px 1fr;height:100vh;width:100vw;background:var(--bg)}.app[data-layout=full]{grid-template-columns:0 1fr}.app[data-layout=full] .sidebar{display:none}.main{display:flex;flex-direction:column;min-width:0;min-height:0;position:relative;border-left:1px solid var(--line)}.main-header{display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 24px;border-bottom:1px solid var(--line);background:var(--bg)}.main-header-title{display:flex;align-items:baseline;gap:10px;font-size:13px;color:var(--fg-muted)}.main-header-title b{color:var(--fg);font-weight:600}.main-header-meta{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--fg-faint)}.pill{padding:3px 8px;border-radius:999px;background:var(--accent-soft);color:var(--cite-fg);font-family:var(--font-mono);font-size:11px;letter-spacing:.02em}.body{flex:1;display:flex;min-height:0}.center{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;position:relative}.sidebar{background:var(--bg-sidebar);display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--line)}.sidebar-head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 10px}.brand{display:flex;align-items:center;gap:10px;color:var(--accent)}.brand-text{line-height:1.2}.brand-name{font-family:var(--font-display);font-weight:600;font-size:15px;color:var(--fg);letter-spacing:-.01em}[data-theme=amt] .brand-name{letter-spacing:0}.brand-sub{font-size:11px;color:var(--fg-faint);margin-top:1px}.icon-btn{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border:none;background:transparent;color:var(--fg-muted);border-radius:var(--radius);cursor:pointer}.icon-btn:hover{background:var(--line);color:var(--fg)}.new-chat{display:flex;align-items:center;gap:8px;margin:4px 12px 8px;padding:9px 12px;background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);font-size:13px;color:var(--fg);cursor:pointer;text-align:left;font-weight:500;box-shadow:var(--shadow-sm)}.new-chat:hover{border-color:var(--line-strong)}.new-chat .kbd{margin-left:auto;font-family:var(--font-mono);font-size:10.5px;color:var(--fg-faint);border:1px solid var(--line);padding:1px 5px;border-radius:4px;background:var(--bg)}.search{display:flex;align-items:center;gap:8px;margin:0 12px 12px;padding:7px 10px;background:transparent;border:1px solid transparent;border-radius:var(--radius);color:var(--fg-faint)}.search:focus-within{background:var(--bg-elev);border-color:var(--line)}.search input{flex:1;border:none;outline:none;background:transparent;font:inherit;font-size:13px;color:var(--fg)}.search input::placeholder{color:var(--fg-faint)}.history{flex:1;overflow-y:auto;padding:0 8px 12px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.history-group{margin-bottom:10px}.history-label{font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-faint);padding:8px 8px 4px}.history-item{display:flex;align-items:center;gap:10px;padding:7px 10px;border-radius:6px;font-size:13px;color:var(--fg-muted);text-decoration:none;cursor:pointer}.history-item:hover{background:var(--bg-elev);color:var(--fg)}.history-item.is-active{background:var(--bg-elev);color:var(--fg);box-shadow:var(--shadow-sm)}[data-theme=amt] .history-item.is-active{background:var(--accent-soft);color:var(--accent);box-shadow:none;border-left:2px solid var(--accent);padding-left:8px}.history-dot{width:5px;height:5px;border-radius:50%;background:var(--fg-faint);flex-shrink:0}.history-item.is-active .history-dot{background:var(--accent)}.history-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-foot{padding:10px 12px 12px;border-top:1px solid var(--line)}.user{display:flex;align-items:center;gap:10px;padding:6px;border-radius:var(--radius)}.user:hover{background:var(--bg-elev)}.avatar{width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-fg);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;letter-spacing:.02em}.user-meta{flex:1;min-width:0;line-height:1.2}.user-name{font-size:12.5px;font-weight:500}.user-team{font-size:11px;color:var(--fg-faint)}.legal-note{margin-top:8px;padding:8px;font-size:10.5px;line-height:1.4;color:var(--fg-faint)}.empty{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 24px 24px;overflow-y:auto}.empty-inner{max-width:var(--content-max);width:100%;text-align:center}.empty-mark{display:inline-flex;margin-bottom:18px;color:var(--accent)}.empty-title{font-family:var(--font-display);font-size:32px;font-weight:500;margin:0 0 12px;letter-spacing:-.02em;color:var(--fg)}[data-theme=amt] .empty-title{letter-spacing:0;font-weight:400;font-size:30px}.empty-sub{font-size:15px;color:var(--fg-muted);max-width:540px;margin:0 auto 28px;line-height:1.55}.cite-inline{font-family:var(--font-mono);font-size:.92em;background:var(--cite-bg);color:var(--cite-fg);padding:1px 6px;border-radius:4px}.examples{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;text-align:left;margin-bottom:32px}.example{display:flex;gap:12px;padding:14px;background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;text-align:left;font:inherit;color:inherit;transition:border-color .12s,transform .12s}.example:hover{border-color:var(--line-strong);transform:translateY(-1px)}.example-icon{width:30px;height:30px;flex-shrink:0;border-radius:6px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}.example-body{flex:1;min-width:0}.example-tag{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:4px}.example-title{font-size:13.5px;font-weight:600;color:var(--fg);line-height:1.35;margin-bottom:3px}.example-text{font-size:12.5px;color:var(--fg-muted);line-height:1.45}.empty-foot{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;font-size:11.5px;color:var(--fg-faint);border:1px solid var(--line);border-radius:999px}.empty-foot .dot{width:6px;height:6px;border-radius:50%;background:#5bb661;box-shadow:0 0 0 3px #5bb6612e}.conversation{flex:1;min-height:0;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}.conversation-inner{max-width:var(--content-max);margin:0 auto;padding:32px 24px 16px;display:flex;flex-direction:column;gap:var(--msg-gap)}.msg{display:flex;gap:14px}.msg-user{justify-content:flex-end}.msg-bubble{max-width:80%;padding:10px 14px;background:var(--user-bubble);color:var(--user-bubble-fg);border-radius:16px 16px 4px;font-size:14.5px;line-height:1.5}[data-theme=amt] .msg-bubble{border-radius:var(--radius)}.msg-assistant{gap:14px}.msg-mark{width:28px;height:28px;flex-shrink:0;display:flex;align-items:center;justify-content:center;color:var(--accent);margin-top:2px}.msg-content{flex:1;min-width:0;font-size:14.5px;line-height:1.62;color:var(--fg)}.msg-heading{font-family:var(--font-display);font-size:15px;font-weight:600;margin:18px 0 8px;color:var(--fg);letter-spacing:-.005em}[data-theme=amt] .msg-heading{font-weight:600;letter-spacing:0;font-size:16px}.msg-p{margin:0 0 10px;text-wrap:pretty}.cite-row{display:inline-flex;gap:4px;margin-left:4px;vertical-align:baseline}.cite-chip{display:inline-flex;align-items:center;gap:3px;padding:1px 7px;background:var(--cite-bg);color:var(--cite-fg);border:none;border-radius:4px;font-family:var(--font-mono);font-size:11.5px;cursor:pointer;vertical-align:baseline;transition:background .12s;white-space:nowrap}.cite-chip:hover{background:var(--accent);color:var(--accent-fg)}.cite-mono{font-family:var(--font-mono);font-size:.92em}.cite-mono.lg{font-size:18px;font-weight:600}.caret{display:inline-block;width:8px;height:16px;vertical-align:text-bottom;background:var(--accent);border-radius:1px;margin-left:2px;animation:caret 1s steps(2) infinite}@keyframes caret{50%{opacity:0}}.msg-actions{display:flex;align-items:center;gap:4px;margin-top:14px;padding-top:6px;opacity:.6;transition:opacity .15s}.msg-assistant:hover .msg-actions{opacity:1}.msg-action{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border:none;background:transparent;color:var(--fg-muted);font-size:12px;cursor:pointer;border-radius:6px}.msg-action:hover{background:var(--line);color:var(--fg)}.msg-action.icon-only{padding:5px}.msg-actions .spacer{flex:1}.composer-wrap{padding:0 24px 18px;background:linear-gradient(to bottom,transparent 0%,var(--bg) 30%)}.composer-wrap>.composer{max-width:var(--content-max);margin:0 auto}.composer{display:flex;flex-direction:column;background:var(--bg-input);border:1px solid var(--line-strong);border-radius:14px;box-shadow:var(--shadow-md);transition:border-color .15s}.composer:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}[data-theme=amt] .composer{border-radius:var(--radius)}.composer textarea{width:100%;border:none;outline:none;background:transparent;font:inherit;font-size:14.5px;line-height:1.5;color:var(--fg);resize:none;padding:14px 16px 0;max-height:180px;font-family:var(--font-sans)}.composer textarea::placeholder{color:var(--fg-faint)}.composer-actions{display:flex;align-items:center;justify-content:space-between;padding:8px 10px 10px 16px}.composer-hints{font-size:11.5px;color:var(--fg-faint);display:flex;align-items:center;gap:6px}.kbd{font-family:var(--font-mono);font-size:10.5px;border:1px solid var(--line);padding:1px 5px;border-radius:4px;background:var(--bg);color:var(--fg-muted)}.dot-sep{width:3px;height:3px;border-radius:50%;background:var(--fg-faint);margin:0 4px}.send-btn{width:32px;height:32px;border-radius:8px;border:none;background:var(--accent);color:var(--accent-fg);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:opacity .15s,background .15s}.send-btn:disabled{background:var(--line-strong);color:var(--fg-faint);cursor:default}[data-theme=amt] .send-btn{border-radius:var(--radius)}.composer-disclaimer{max-width:var(--content-max);margin:8px auto 0;text-align:center;font-size:11px;color:var(--fg-faint)}.cite-panel{width:380px;flex-shrink:0;background:var(--bg-elev);border-left:1px solid var(--line);display:flex;flex-direction:column;min-height:0;animation:slideIn .2s ease-out}@keyframes slideIn{0%{transform:translate(20px);opacity:0}to{transform:translate(0);opacity:1}}.cite-head{display:flex;justify-content:space-between;align-items:flex-start;padding:16px 20px 14px;border-bottom:1px solid var(--line)}.cite-eyebrow{font-family:var(--font-mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--fg-faint);margin-bottom:4px}.cite-id{display:flex;align-items:baseline;gap:8px}.cite-abs{font-size:12px;color:var(--fg-muted);font-family:var(--font-mono)}.cite-body{padding:18px 20px 24px;overflow-y:auto;flex:1}.cite-doc-label{font-size:11.5px;font-weight:600;letter-spacing:.04em;color:var(--accent);margin-bottom:6px;text-transform:uppercase}.cite-title{font-family:var(--font-display);font-size:19px;font-weight:600;margin:0 0 14px;letter-spacing:-.005em;color:var(--fg);line-height:1.3}.cite-rule{height:2px;width:32px;background:var(--accent);margin-bottom:16px}.cite-text{margin:0 0 18px;padding:14px 16px;background:var(--bg);border-left:2px solid var(--accent);border-radius:0 6px 6px 0;font-size:13.5px;line-height:1.6;color:var(--fg);font-style:italic}[data-theme=amt] .cite-text{font-family:var(--font-serif);font-style:normal;font-size:14px}.cite-meta{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:18px;overflow:hidden}.cite-meta-row{display:flex;justify-content:space-between;padding:8px 12px;font-size:12px}.cite-meta-row+.cite-meta-row{border-top:1px solid var(--line)}.cite-meta-key{color:var(--fg-faint)}.cite-meta-val{color:var(--fg);font-family:var(--font-mono);font-size:11.5px}.cite-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);text-decoration:none;margin-bottom:24px}.cite-link:hover{text-decoration:underline}.cite-related-label{font-size:10.5px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--fg-faint);margin-bottom:8px;padding-top:14px;border-top:1px solid var(--line)}.cite-related-item{display:flex;align-items:center;gap:10px;width:100%;padding:10px 0;border:none;background:transparent;font:inherit;cursor:pointer;text-align:left;border-bottom:1px solid var(--line)}.cite-related-item:hover .cite-related-title{color:var(--accent)}.cite-related-title{flex:1;font-size:13px;color:var(--fg)}.cite-related-chev{color:var(--fg-faint);flex-shrink:0}.app[data-layout=inline] .cite-panel{display:none}