* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
}

h1 {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 20px;
}

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

thead {
    background-color: #ccc;
}

th,
td {
    padding: 10px;
    text-align: left;
}

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

input[type="number"] {
    width: 60px;
    padding: 5px;
    border-radius: 5px;
    border: none;
}

.checkout {
    text-align: right;
}

.checkout a {
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.checkout a:hover {
    background-color: #0062cc;
}

@media only screen and (max-width: 768px) {
    h1 {
        font-size: 28px;
    }

    table {
        font-size: 14px;
    }

    input[type="number"] {
        width:
            100%;
        margin-bottom: 10px;
    }

    button {
        font-size: 14px;
        padding: 8px 16px;
    }
}

@media only screen and (max-width: 576px) {
    h1 {
        font-size: 24px;
    }

    table {
        font-size: 12px;
    }

    input[type="number"] {
        width: 50px;
        padding: 3px;
    }

    button {
        font-size: 12px;
        padding: 6px 12px;
    }
}