body {font-family: Arial, sans-serif; margin:0; background:#f5f9fd; color:#333;}
header {background:#3fa9f5; color:#fff; padding:30px; text-align:center;}
section {padding:40px;}
.gallery {display:flex; gap:20px; flex-wrap:wrap;}
.gallery img {width:30%; border-radius:10px; box-shadow:0 0 10px rgba(0,0,0,0.1);}
footer {background:#3fa9f5; color:#fff; text-align:center; padding:15px;}