body {
    font-family: 'Arial', sans-serif;
    background-color: #f8f9fa;
}

header {
    background-color: #007bff;
    color: white;
    padding: 2rem 0;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

header a {
    color: white;
    text-decoration: none;
}

header a:hover {
    text-decoration: underline;
}

nav {
    margin-bottom: 2rem;
}

.teaching-section, .research-section, .wccs-section {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.teaching-category, .research-category, .wccs-category {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid #007bff;
    margin-bottom: 1.5rem;
}

.teaching-category h3, .research-category h3, .wccs-category h3 {
    color: #007bff;
    margin-bottom: 1rem;
}

.course {
    background-color: #ffffff;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    border-left: 4px solid #28a745; /* Green border for courses */
}

.course h4 {
    color: #343a40;
    margin-bottom: 1rem;
}

.course ul, .research-category ul, .wccs-category ul {
    list-style-type: none;
    padding-left: 0;
}

.course ul li, .research-category ul li, .wccs-category ul li {
    margin-bottom: 0.75rem;
}

.course ul li a, .research-category ul li a, .wccs-category ul li a {
    color: #007bff;
    text-decoration: none;
    font-weight: 500;
}

.course ul li a:hover, .research-category ul li a:hover, .wccs-category ul li a:hover {
    text-decoration: underline;
}

footer {
    background-color: #343a40;
    color: white;
    padding: 1rem 0;
    margin-top: 2rem;
}