:root{--bg-color:#f0f2f5;--text-color:#1c1e21;--main-bg:#fff;--header-bg:#fff;--border-color:#edf2f7;--chat-bg:#f7fafc;--bot-bubble-bg:#fff;--bot-bubble-text:#1a202c;--user-bubble-bg:linear-gradient(135deg, #08c, #0072ad);--user-bubble-text:#fff;--input-bg:#fff;--input-border:#e2e8f0;--pill-bg:#f7fafc;--pill-border:#e2e8f0;--error-bg:#fff5f5;--error-border:#feb2b2;--error-text:#c53030;--code-bg:#2d3748;--code-text:#edf2f7}@media (prefers-color-scheme:dark){:root{--bg-color:#0f172a;--text-color:#f1f5f9;--main-bg:#1e293b;--header-bg:#1e293b;--border-color:#334155;--chat-bg:#0f172a;--bot-bubble-bg:#334155;--bot-bubble-text:#f1f5f9;--input-bg:#1e293b;--input-border:#334155;--pill-bg:#334155;--pill-border:#475569;--error-bg:#450a0a;--error-border:#991b1b;--error-text:#fecaca;--code-bg:#000;--code-text:#e2e8f0}}body{background-color:var(--bg-color);color:var(--text-color);flex-direction:column;height:100vh;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;display:flex;overflow:hidden}