:root{--primary-color:#06c;--primary-hover:#0052a3;--text-primary:#1a1a1a;--text-secondary:#666;--bg-primary:#fff;--bg-secondary:#f8f9fa;--border-color:#e0e0e0}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}html,body{background:var(--bg-primary);height:100%}body{color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}