*{margin:0;padding:0;box-sizing:border-box}:root{--primary:#466e11;--primary-light:#5a7d2b;--primary-dark:#395115;--primary-glow:rgba(70,110,17,0.15);--bg:#0a0c08;--bg-surface:#141810;--bg-hover:#1c2216;--text:#e8eaed;--text-muted:#9aa0a6;--border:#2a3320;--user-bubble:#466e11;--assistant-bubble:#161c12}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);overflow:hidden}body,main{height:100vh}.app-wrapper{display:flex;height:100vh;position:relative}.sidebar-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:40}.sidebar{position:fixed;left:0;top:0;bottom:0;width:280px;background:var(--bg-surface);border-right:1px solid var(--border);z-index:50;transform:translateX(-100%);transition:transform .25s ease;display:flex;flex-direction:column}.sidebar.open{transform:translateX(0)}.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:16px;border-bottom:1px solid 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