:root{--text:#4b5157;--text-h:#14161a;--text-dim:#8a9099;--bg:#f6f7f9;--surface:#fff;--border:#e3e5e9;--accent:#6d5bff;--accent-h:#5a49e6;--accent-bg:#6d5bff1a;--accent-contrast:#fff;--user-bubble:#6d5bff;--user-bubble-text:#fff;--assistant-bubble:#fff;--danger:#d9455f;--warning:#c98a1f;--success:#1f9d63;--shadow:#14161a0f 0 1px 2px, #14161a0d 0 8px 24px;--sans:system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:15px/1.5 var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#b7bcc4;--text-h:#f2f3f5;--text-dim:#757b85;--bg:#101114;--surface:#17181c;--border:#26282e;--accent:#8b7bff;--accent-h:#a396ff;--accent-bg:#8b7bff29;--accent-contrast:#101114;--user-bubble:#8b7bff;--user-bubble-text:#101114;--assistant-bubble:#1c1e23;--danger:#ef6a80;--warning:#e0a94b;--success:#4fc98a;--shadow:#00000059 0 1px 2px, #0000004d 0 8px 24px}}*{box-sizing:border-box}body{margin:0}#root{flex-direction:column;min-height:100svh;display:flex}h1,h2,h3{font-family:var(--sans);color:var(--text-h);margin:0;font-weight:600}p{margin:0}button,textarea{font:inherit}.app{flex-direction:column;width:100%;max-width:860px;height:100svh;margin:0 auto;display:flex}.app-header{border-bottom:1px solid var(--border);background:var(--surface);align-items:center;gap:12px;padding:18px 24px;display:flex}.app-header .logo{background:var(--accent);width:36px;height:36px;color:var(--accent-contrast);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.app-header .titles h1{font-size:17px}.app-header .titles p{color:var(--text-dim);margin-top:2px;font-size:13px}.chat-scroll{flex-direction:column;flex:1;gap:18px;padding:24px;display:flex;overflow-y:auto}.empty-state{text-align:center;color:var(--text-dim);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;padding:40px 24px;display:flex}.empty-state .logo{background:var(--accent-bg);width:48px;height:48px;color:var(--accent);border-radius:14px;justify-content:center;align-items:center;margin-bottom:6px;display:flex}.empty-state h2{color:var(--text-h);font-size:16px}.empty-state p{max-width:320px;font-size:14px}.message-row{gap:10px;max-width:100%;display:flex}.message-row.user{flex-direction:row-reverse}.avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:28px;height:28px;font-size:12px;font-weight:600;display:flex}.avatar.user{background:var(--accent);color:var(--accent-contrast)}.avatar.assistant{background:var(--accent-bg);color:var(--accent)}.message-col{flex-direction:column;gap:10px;max-width:78%;display:flex}.message-row.user .message-col{align-items:flex-end}.bubble{white-space:pre-wrap;word-break:break-word;border-radius:14px;padding:11px 15px;font-size:14.5px;line-height:1.55}.bubble.user{background:var(--user-bubble);color:var(--user-bubble-text);border-bottom-right-radius:4px}.bubble.assistant{background:var(--assistant-bubble);color:var(--text-h);border:1px solid var(--border);box-shadow:var(--shadow);border-bottom-left-radius:4px}.bubble.error{border-color:var(--danger);color:var(--danger)}.sources{flex-direction:column;gap:8px;width:100%;display:flex}.sources-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-dim);padding-left:2px;font-size:11px;font-weight:600}.source-card{border:1px solid var(--border);background:var(--surface);border-left:3px solid var(--border);border-radius:10px;padding:10px 12px;font-size:13px}.source-card.severity-high{border-left-color:var(--danger)}.source-card.severity-medium{border-left-color:var(--warning)}.source-card.severity-low{border-left-color:var(--success)}.source-card .source-title{color:var(--text-h);align-items:baseline;gap:6px;margin-bottom:4px;font-weight:600;display:flex}.source-card .source-id{font-family:var(--mono);color:var(--text-dim);font-size:11px;font-weight:500}.source-meta{color:var(--text-dim);flex-wrap:wrap;gap:6px;display:flex}.source-meta span{background:var(--bg);border-radius:6px;padding:2px 7px}.typing-bubble{align-items:center;gap:4px;padding:14px 16px;display:flex}.typing-bubble .dot{background:var(--text-dim);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite bounce}.typing-bubble .dot:nth-child(2){animation-delay:.15s}.typing-bubble .dot:nth-child(3){animation-delay:.3s}@keyframes bounce{0%,60%,to{opacity:.5;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.composer{border-top:1px solid var(--border);background:var(--surface);padding:14px 20px}.composer-box{border:1px solid var(--border);background:var(--bg);border-radius:14px;align-items:flex-end;gap:10px;padding:8px 8px 8px 16px;transition:border-color .15s;display:flex}.composer-box:focus-within{border-color:var(--accent)}.composer-box textarea{resize:none;color:var(--text-h);background:0 0;border:none;outline:none;flex:1;max-height:160px;padding:6px 0}.composer-box textarea::placeholder{color:var(--text-dim)}.send-button{background:var(--accent);width:36px;height:36px;color:var(--accent-contrast);cursor:pointer;border:none;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s,opacity .15s;display:flex}.send-button:hover:not(:disabled){background:var(--accent-h)}.send-button:disabled{opacity:.4;cursor:not-allowed}.composer-hint{color:var(--text-dim);margin-top:8px;padding-left:4px;font-size:11px}