#vpb-pc-builder { border: 1px solid #ddd; padding: 20px; border-radius: 8px; background: #fafafa; max-width: 600px; margin: auto; }
.vpb-category { margin-bottom: 15px; }
.vpb-select { width: 100%; padding: 8px; border-radius: 4px; }
.vpb-total { font-size: 18px; font-weight: bold; margin-top: 20px; }
.vpb-add-to-cart { background: #0073aa; color: #fff; padding: 10px 20px; border: none; border-radius: 4px; cursor: pointer; }
.vpb-add-to-cart:hover { background: #005177; }