*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0f0f0f;--bg-surface:#1a1a1a;--bg-elevated:#242424;--border:#2e2e2e;--text-primary:#f0f0f0;--text-secondary:#888;--accent:#7c6af7;--accent-hover:#9081f9;--bubble-user1:#7c6af7;--bubble-user2:#2a2a2a;--input-bg:#1e1e1e;--radius:16px;--radius-sm:8px}html,body{background:var(--bg);height:100%;color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}input,textarea{font-family:inherit}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}