body {
    font-family: 'Trebuchet MS', sans-serif;
    margin: 0;
    padding: 0;
}

.banner {
    background-color: #A9A9A9;
    color: white;
    text-align: center;
    padding: 10px 0;
}

.navigation ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

.navigation ul li {
    float: left;
}

.navigation ul li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

.navigation ul li a:hover {
    background-color: #ddd;
    color: black;
}

.main-content {
    padding: 20px;
    min-height: 200px; /* Adjust as needed */
}

.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 10px 0;
    position: relative;
    bottom: 0;
    width: 100%;
}

@media screen and (max-width: 600px) {
    .navigation ul li {
        float: none;
        width: 100%;
    }
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Three columns */
    grid-gap: 20px; /* Space between grid items */
    padding: 20px;
}

.grid-item {
    background-color: #f4f4f4; /* Light gray background */
    border: 1px solid #ddd; /* Border for items */
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
}


.item-title {
    font-weight: bold;
    margin-bottom: 10px;
}

.item-description {
    font-size: 0.9em;
    text-align: center; /* Center the text */
    margin-bottom: 10px;
}

.item-link a {
    color: #0077cc; /* Link color */
    text-decoration: none;
}

.item-link a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .grid-container {
        grid-template-columns: 1fr; /* Single column on small screens */
    }
}


.thumbnail img {
    width: 100px; /* Thumbnail width */
    height: auto; /* Maintain aspect ratio */
    cursor: pointer;
    max-width: 200px; /* Maximum width */
    margin-bottom: 10px;
}

#overlay {
    display: none; /* Hidden by default */
    position: fixed; /* Full screen */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7); /* Semi-transparent black */
    z-index: 1000; /* Ensure it's above other items */
    cursor: pointer;
}

#overlay img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 90%;
    max-height: 90%;
}