:root{--primary-color: #f6821f;--primary-hover: #e67e22;--light-bg: #f9fafb;--border-color: #e5e7eb;--text-color: #1f2937;--text-light: #6b7280;--user-msg-bg: #fff2e6;--assistant-msg-bg: #f3f4f6}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--light-bg)}#root{max-width:none;margin:0;padding:0;min-height:100vh;display:flex;flex-direction:column;width:100%}