style.css

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f33030;
  color: #333;
}

.container {
  max-width: 800px;
  margin: 20px auto;
  background: #f18181;
  padding: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  border-radius: 8px;
}

h1 {
  text-align: center;
  color: #444;
}

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

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

button {
  background-color: #28a745;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background-color: #218838;
}

.bill.hidden {
  display: none;
}

.bill h2, .bill h3 {
  margin: 10px 0;
}

#billItems {
  list-style-type: none;
  padding: 0;
}