body { font-family: Arial, sans-serif; background-color: #f4f4f9; padding: 20px; }
.container { max-width: 900px; margin: auto; background: white; padding: 20px; border-radius: 8px; box-shadow: 0 0 10px rgba(0,0,0,0.1); }

/* Buttons */
button { padding: 10px 15px; cursor: pointer; border: none; background: #007bff; color: white; border-radius: 4px; margin: 5px; }
button:hover { background: #0056b3; }
.btn-submit { background: #28a745; width: 100%; margin-top: 20px; font-size: 16px; }

/* Table */
table { width: 100%; border-collapse: collapse; margin-top: 15px; }
th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
th { background-color: #f2f2f2; }

/* Modal Styles */
.modal { display: none; position: fixed; z-index: 1; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.5); }
.modal-content { background-color: white; margin: 10% auto; padding: 20px; border-radius: 8px; width: 60%; }
.close { color: #aaa; float: right; font-size: 28px; font-weight: bold; cursor: pointer; }
.close:hover { color: black; }

.product-row { display: flex; justify-content: space-between; margin-bottom: 10px; align-items: center; border-bottom: 1px solid #eee; padding-bottom: 5px; }
.product-row input { width: 60px; padding: 5px; }