* { box-sizing: border-box; }
body { margin: 0; font-family: sans-serif; background: #f4f4f4; color: #171717; }
a { color: inherit; }
header { display: flex; gap: 16px; padding: 16px 20px; background: #fff; border-bottom: 1px solid #ddd; }
header a { font-weight: 600; text-decoration: none; }
main { max-width: 840px; margin: 0 auto; padding: 20px 16px 48px; }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 16px; }
.row a { background: #fff; border: 1px solid #ccc; padding: 6px 10px; text-decoration: none; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.card { background: #fff; border: 1px solid #ddd; padding: 12px; }
.card img, .product img { width: 100%; height: auto; display: block; background: #eee; }
.card h2, .product h1 { font-size: 1.1rem; margin: 10px 0 6px; }
.muted { color: #555; }
button, input { font: inherit; padding: 8px 10px; }
form { display: grid; gap: 8px; max-width: 360px; }
.error { color: #9f1239; }