:root{--primary-bg: #ffffff;--secondary-bg: #f9f9f9;--text-main: #000000;--text-muted: #555555;--accent-color: #000000;--navbar-height: 70px;--container-width: 1200px;--font-main: "Roboto", sans-serif;--font-heading: "Montserrat", sans-serif}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{background-color:var(--primary-bg);color:var(--text-main);font-family:var(--font-main);line-height:1.6;overflow-x:hidden}a{text-decoration:none;color:inherit;transition:.3s ease}ul{list-style:none}.container{max-width:var(--container-width);margin:0 auto;padding:0 20px}