body{font-family:system-ui,Arial,sans-serif;margin:0;color:#222;background:#fafafa}
header{padding:32px 16px;background:#fff;border-bottom:1px solid #eee}
h1{margin:0 0 8px;font-size:28px}
.gallery{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));padding:16px}
.gallery img{width:100%;height:auto;border-radius:8px;background:#eee}
footer{padding:24px 16px;color:#777}