body {
    font-family: Arial;
    margin: 0;
    padding: 20px;
    background-color: #1a1a1a;
    color: #e0e0e0;
}

header {
    padding: 20px;
    background-color: #2d2d2d;
    border-bottom: 1px solid #444;
}

.logo2 {
    font-size: 28px;
    font-weight: bold;
    color: #ffffff;
}

.description {
    font-size: 20px;
    text-align: center;
    margin: 20px 0;
    color: #cccccc;
}

.page-link {
    background-color: #555;
    color: white;
    padding: 8px 15px;
    text-decoration: none;
    float: right;
}

table {
    width: 90%;
    margin: 20px auto;
    border: 1px solid #555;
    background-color: #2a2a2a;
}

th, td {
    border: 1px solid #555;
    padding: 10px;
    text-align: center;
}

th {
    background-color: #3a3a3a;
    font-weight: bold;
    color: #ffffff;
}

.course-name {
    background-color: #333333;
    text-align: left;
    font-weight: bold;
    color: #ffffff;
}

.time-slot {
    font-size: 14px;
    color: #cccccc;
}

.empty {
    background-color: #252525;
}

footer {
    text-align: center;
    padding: 20px;
    background-color: #2d2d2d;
    margin-top: 30px;
    color: #cccccc;
}