:root{font-family:Arial,sans-serif;line-height:1.6;font-weight:400;color:#333;background-color:#f8f9fa;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}a{text-decoration:none}body{margin:0}.btn{display:inline-block;background-color:#3b82f6;color:#fff;padding:.8rem 2rem;border-radius:4px;text-decoration:none;font-weight:700;font-size:1.1rem;transition:background-color .3s;border:none;cursor:pointer}.btn:hover{background-color:#2563eb}.container{max-width:1200px;margin:0 auto;padding:0 1rem}@media (max-width: 768px){.features-grid{grid-template-columns:1fr}}