body, h1, h2, table {
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
}

header {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 1em;
}

section {
    margin: 2em auto;
    max-width: 800px;
    padding: 1em;
    background-color: white;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1em;
}

th, td {
    padding: 0.5em;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f4f4f4;
}

a {
    text-decoration: none;
    color: #007bff;
}

a:hover {
    text-decoration: underline;
}


.nav-table {
    margin: 0 auto;
    background-color: #333;
    color: white;
    text-align: center;
    padding: 0.5em;
    border-collapse: collapse;
}

.nav-table td {
    padding: 10px 20px;
}

.nav-table a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    transition: background-color 0.3s;
}

.nav-table a:hover {
    background-color: #444;
}


.nav-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #333;
    padding: 1em;
}

.nav-bar a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    margin: 0 20px;
    transition: background-color 0.3s;
}

.separator {
    border-right: 1px solid white;
    height: 20px;
    margin: 0 10px;
}

/* Media Query for Responsive Navigation */
@media (max-width: 768px) {
    .nav-bar {
        flex-direction: column;
        text-align: center;
    }

    .nav-bar a {
        margin: 10px 0;
    }

    .separator {
        display: none;
    }
}




.content {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.course-description {
    border: 1px solid #ccc;
    padding: 20px;
    background-color: #f9f9f9;
}

.course-description h2 {
    margin-bottom: 10px;
}

.course-description p {
    line-height: 1.5;
}


.home-button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-bottom: 20px;
}

.home-button:hover {
    background-color: #0056b3;
}


.course-image {
    display: block;
    margin: 0 auto;
    width: 100%;
    height: auto;
  }



  /* Previous styles remain unchanged */

.instructors {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.instructor-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1em;
}

.instructor-table th,
.instructor-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.instructor-table th {
    background-color: #f4f4f4;
}


.lecture-table {
    margin: 20px auto;
    max-width: 800px;
  }
  
  .lecture-table h2 {
    font-size: 24px;
    margin-bottom: 20px;
  }
  
  .lecture-table table {
    border-collapse: collapse;
    width: 100%;
  }
  
  .lecture-table th,
  .lecture-table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
  }
  
  .lecture-table th {
    background-color: #f2f2f2;
    font-weight: bold;
  }
  
  .lecture-table tr:nth-child(even) {
    background-color: #f2f2f2;
  }
  
  .lecture-table tr:hover {
    background-color: #ddd;
  }