table {
            width: 100%;
            border-collapse: collapse;
            font-family: Arial, sans-serif;
            margin-bottom: 30px;
        }
        th, td {
            border: 1px solid #ccc;
            padding: 8px;
            text-align: center;
            font-size: 13px;
        }
        th {
            background-color: #3fd89b;
            color: white;
        }
        .header-materias {
            background-color: #7cb342;
            color: white;
            font-weight: bold;
        }
        .sub-info {
            font-size: 11px;
            color: #555;
            display: block;
        }