/* Simple, lightweight styling */
*{margin:0;padding:0;box-sizing:border-box;font-family:system-ui, sans-serif;}
body{line-height:1.6;color:#333;background:#fafafa;padding:0 1rem;}
header{padding:3rem 0;text-align:center;}
h1{font-size:2.4rem;font-weight:700;}
.tagline{margin:0.5rem 0 1rem;font-size:1.1rem;color:#555;}
nav a{margin:0 0.5rem;color:#0070f3;text-decoration:none;font-weight:500;}
section{max-width:720px;margin:2.5rem auto;}
h2{margin-bottom:0.75rem;font-size:1.6rem;color:#111;}
ul li{margin-left:1.2rem;margin-bottom:0.5rem;}
article{margin-bottom:1.5rem;}
footer{padding:2rem 0;text-align:center;color:#777;}
@media(min-width:700px){body{padding:0 2rem;}}