:root{--primary-color: #6366f1;--primary-color-dark: #4f46e5;--secondary-color: #8b5cf6;--text-primary: #1f2937;--text-secondary: #6b7280;--background-light: #f9fafb;--card-background: #ffffff}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;color:var(--text-primary);background:var(--background-light);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2}p{margin-bottom:1rem}button,input,select,textarea{font-family:inherit}