:root{--bg-primary:#ffffff;--bg-secondary:#f8f9fa;--text-primary:#1a1a1a;--text-secondary:#6b7280;--accent:#0969DA;--border:#e5e7eb;--input-bg:#ffffff;--upload-dragover-bg:#f0f7ff}@media (prefers-color-scheme:dark){:root{--bg-primary:#0d1117;--bg-secondary:#161b22;--text-primary:#e6edf3;--text-secondary:#8b949e;--accent:#388bfd;--border:#30363d;--input-bg:#0d1117;--upload-dragover-bg:#161b22}}[data-theme=dark]{--bg-primary:#0d1117;--bg-secondary:#161b22;--text-primary:#e6edf3;--text-secondary:#8b949e;--accent:#388bfd;--border:#30363d;--input-bg:#0d1117;--upload-dragover-bg:#161b22}[data-theme=light]{--bg-primary:#ffffff;--bg-secondary:#f8f9fa;--text-primary:#1a1a1a;--text-secondary:#6b7280;--accent:#0969DA;--border:#e5e7eb;--input-bg:#ffffff;--upload-dragover-bg:#f0f7ff}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;margin:0;background:var(--bg-primary);color:var(--text-primary)}.app-layout{display:flex;height:100vh}.app-layout:not(.has-sidebar) 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