* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

html, body {
    height: 100%;
    background-color: #f4f4f9;
    color: #333;
    padding: 20px;
    margin: 0 auto;
    text-align: center;
}

h1 {
    margin-bottom: 20px;
    color: #4CAF50;
}

form {
    width: fit-content;
    margin: 20px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}

select, input[type="number"], button {
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 100%;
    max-width: 300px;
}

button {
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

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

table {
    margin-bottom: 10px;
    border-collapse: collapse;
    width: 100%;
    max-width: 300px;
}

td {
    padding: 5px;
}

input[type="number"] {
    width: 50px;
    text-align: center;
}

h2 {
    margin-top: 20px;
    color: #4CAF50;
}

p, ul {
    margin-bottom: 10px;
}

ul {
    list-style-type: none;
    padding-left: 0;
}

li {
    margin-bottom: 5px;
}