body {
    font-family: Arial, sans-serif;
    background-color: #333;
    color: #f4f4f4;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

h1 {
    color: #f4f4f4;
    margin-bottom: 20px;
}

a {
    text-decoration: none;
    color: #218838;
    margin: 10px 0;
    display: inline-block;
}

table {
    width: 80%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: #444;
}

th, td {
    border: 1px solid #666;
    padding: 8px;
    text-align: center;
}

th {
    background-color: #218838;
    color: #333;
}

td {
    background-color: #555;
}

button {
    background-color: #218838;
    color: #333;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    margin: 10px 0;
    border-radius: 4px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #218838;
}

form {
    background-color: #444;
    color: #f4f4f4;
    padding: 20px;
    border: 1px solid #666;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

input[type="text"], input[type="datetime-local"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #666;
    border-radius: 4px;
    background-color: #555;
    color: #f4f4f4;
}