body { font-family: Arial, sans-serif; margin:0; padding:0; background:#f5f5f5; color:#333; }
header, footer { background:#222; color:#fff; padding:20px; text-align:center; }
nav a { color:#fff; margin:0 10px; text-decoration:none; }
main { padding:50px 20px; }
#hero { text-align:center; margin-bottom:50px; }
#hero .btn-primary { display:inline-block; padding:10px 25px; background:#007bff; color:#fff; text-decoration:none; border-radius:5px; }
#features ul { list-style:disc; padding-left:20px; }
footer ul { list-style:none; padding:0; margin:10px 0 0; display:flex; flex-wrap:wrap; justify-content:center; }
footer ul li { margin:5px 10px; }
footer ul li a { color:#fff; text-decoration:none; }