body {
    font-family: Arial, sans-serif;
    padding: 10px;
}
header {
    text-align: center;
    margin-bottom: 20px;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}
th {
    background-color: #f4f4f4;
}
input, button {
    padding: 10px;
    margin: 10px 0;
    font-size: 16px;
}
button {
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}
button:hover {
    background-color: #45a049;
}