*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-panel:#1a1a2e;--bg-elevated:#232340;--bg-input:#16213e;--border:#2e2e4a;--accent:#c8102e;--accent-hover:#a00d25;--text:#e8e8e8;--text-muted:#8b8b9e;--danger:#ef4444;--danger-hover:#dc2626;--success:#22c55e;--info:#2563eb;--radius:8px;--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}html,body,#root{width:100%;height:100%;font-family:var(--font);overflow:hidden}.app-layout{width:100vw;height:100vh;display:flex}.sidebar{background:var(--bg-panel);width:380px;min-width:380px;height:100vh;color:var(--text);border-right:1px solid var(--border);z-index:10;flex-direction:column;display:flex;overflow-y:auto}.sidebar-header{border-bottom:1px solid var(--border);padding:16px 20px 12px}.app-brand{flex:1;min-width:0}.app-logo{object-fit:contain;width:100%;max-width:260px;height:auto;display:block}.panel-section{border-bottom:1px solid var(--border);padding:16px 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