body{background:var(--bg);color:var(--text);margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif}code{background:#e5e7eb;border-radius:4px;padding:2px 6px}:root{--bg:#f9fafb;--text:#111827;--border:#e5e7eb;--surface:#fff;--sidebar-bg:#fafafa;--bubble-bot-bg:#f3f4f6;--bubble-bot-text:#111827;--bubble-user-bg:#2563eb;--hover-bg:#eef2ff;--input-bg:#fff;--muted:#6b7280}[data-theme=dark]{--bg:#111827;--text:#f3f4f6;--border:#374151;--surface:#1f2937;--sidebar-bg:#171c26;--bubble-bot-bg:#1f2937;--bubble-bot-text:#f3f4f6;--bubble-user-bg:#2563eb;--hover-bg:#1e293b;--input-bg:#1f2937;--muted:#9ca3af}:root{--app-h:100vh;--app-chat-h:calc(100vh - 56px)}@supports (height:100dvh){:root{--app-h:100dvh;--app-chat-h:calc(100dvh - 56px)}}