body { font-family: sans-serif; background-color: #f0f0f0; margin: 0; padding: 20px; }
.container { max-width: 1000px; margin: auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
button { padding: 10px 15px; cursor: pointer; }
.item-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 15px; }
.item-card { border: 1px solid #ccc; padding: 10px; border-radius: 5px; text-align: center; }
.item-card img { max-width: 100%; height: auto; margin-bottom: 10px; }
.item-card button { margin-top: 10px; }