/* Background */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(135deg, #74ebd5, #ACB6E5); /* Soft blue gradient */
  color: #333;
}

/* POS Container */
.pos-container {
  max-width: 900px;
  margin: 50px auto;
  padding: 20px;
  background-color: #fff; /* White card */
  color: #333;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* Headings */
h1, h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #2c3e50;
}

/* Forms */
.product-form, .cart-form, .transaction {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}

.product-form input, .cart-form input, .transaction input {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  flex: 1;
}

/* Buttons */
.product-form button, .cart-form button, .transaction button, .remove-btn {
  padding: 10px 20px;
  border: none;
  background-color: #3498db;
  color: white;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.2s;
}

.product-form button:hover, .cart-form button:hover, .transaction button:hover, .remove-btn:hover {
  background-color: #2980b9;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
}

th, td {
  padding: 10px;
  text-align: center;
  border-bottom: 1px solid #ddd;
}

th {
  background-color: #f2f2f2;
}

/* Totals */
.total {
  font-size: 1.2em;
  margin-bottom: 20px;
}

/* Sales history */
#sales-history {
  list-style-type: none;
  padding: 0;
  max-height: 200px;
  overflow-y: auto;
}

#sales-history li {
  background-color: #ecf0f1;
  color: #2c3e50;
  padding: 10px;
  margin-bottom: 5px;
  border-radius: 5px;
}