*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#1e1e1e;--bg-secondary:#2d2d2d;--bg-hover:#3a3a3a;--bg-active:#094771;--text-primary:#ccc;--text-secondary:#888;--text-bright:#fff;--border:#404040;--accent:#569cd6;--scrollbar-bg:#1e1e1e;--scrollbar-thumb:#424242}html,body,#root{width:100%;height:100%;overflow:hidden}body{background:var(--bg-primary);color:var(--text-primary);font-family:Segoe UI,Consolas,Courier New,monospace;font-size:13px;line-height:1.4}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--scrollbar-bg)}::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:4px}.app-layout{flex-direction:column;height:100%;display:flex}.app-main{flex:1;padding:8px;overflow-y:auto}.app-header{background:var(--bg-secondary);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;min-height:32px;padding:4px 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