body {
    font-family: Arial, sans-serif;
    background-color: #f2f2f2;
    margin: 0;
    padding: 0;
}

.container {
    background-color: white;
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
}

h1 {
    text-align: center;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 8px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

input[type="number"] {
    width: 100%;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

input[type="text"] {
    width: 100%;
    padding: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

button {
    margin-top: 10px;
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 4px;
    float: right;
}

button:hover {
    background-color: #45a049;
}

#finalTotal {
    margin-top: 20px;
    font-weight: bold;
}