body {
    font-family: Arial, sans-serif;
    background-color: #2b2b2b;
    color: #e6e6e6;
    margin: 0;
    padding: 0 20px;
}
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}
th, td {
    border: 1px solid #444;
    padding: 10px;
    text-align: center;
}
th {
    background-color: #555;
}
button {
    margin: 5px;
    padding: 10px 15px;
    background-color: #444;
    color: #e6e6e6;
    border: none;
    cursor: pointer;
}
button:hover {
    background-color: #656;
}
form {
    margin: 20px 0;
}
input, textarea {
    padding: 10px;
    margin: 5px 0;
    width: 100%;
}