/* Estilos generales */
body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
    color: #333;
}

.header {
    background-color: #004085;
    color: white;
    padding: 10px 20px;
    display: flex;
    align-items: center;
}

.header .logo img {
    height: 50px;
    margin-right: 10px;
}

.navbar {
    background-color: #c4c4c4;
    display: flex;
    justify-content: center;
    padding: 10px 0;
}

.nav-item {
    text-decoration: none;
    color: #333;
    padding: 10px 20px;
    transition: background-color 0.3s;
}

.nav-item.active, .nav-item:hover {
    background-color: #005bb5;
    color: white;
}

.main-content {
    padding: 20px;
    text-align: center;
}

.card {
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    padding: 20px;
    max-width: 400px;
    margin: auto;
}

.professor-form {
    display: flex;
    flex-direction: column;
}

.professor-form label {
    margin-top: 15px;
    font-weight: bold;
}

.professor-form input[type="text"],
.professor-form input[type="email"],
.professor-form input[type="checkbox"] {
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.cancel-btn {
    background-color: #888;
    color: white;
}

.cancel-btn:hover {
    background-color: #666;
}

.add-btn {
    background-color: #005bb5;
    color: white;
}

.add-btn:hover {
    background-color: #004085;
}