:root{--bg-primary: #ffffff;--bg-surface: #f5f5f5;--text-primary: #000000;--text-secondary: #666666;--accent: #0099ff;--border: #e5e5e5;--error: #ff3333;--success: #00cc66;--pro-badge: #0055ff}@media(prefers-color-scheme:dark){:root{--bg-primary: #1a1a1a;--bg-surface: #2a2a2a;--text-primary: #ffffff;--text-secondary: #999999;--accent: #0099ff;--border: #333333;--error: #ff4444;--success: #00dd77;--pro-badge: #0077ff}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:13px;line-height:1.5;color:var(--text-primary);background:var(--bg-primary)}