body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f6f9fc; color: #333; }
header { background: #007b83; color: white; padding: 1em; text-align: center; }
nav a { color: white; margin: 0 10px; text-decoration: none; }
main { padding: 2em; }
.product-box { background: white; margin-bottom: 20px; padding: 1em; border-radius: 8px; box-shadow: 0 0 5px #ccc; }
.buy-button { display: inline-block; margin-top: 10px; background: #6f42c1; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; }
footer { background: #007b83; color: white; text-align: center; padding: 1em; margin-top: 2em; }