body {
    background-color: #333;
    /* Dark grey background */
    color: #ccc;
    /* Light grey font color */
    font-family: Arial, sans-serif;
    /* Sets the font family */
    margin: 0;
    padding: 0;
    font-size: 16px;
    /* Larger base font size */
}

a {
    color: #f0f0f0;
    /* Brighter grey for links */
    text-decoration: none;
    /* Removes underline from links */
}

a:hover {
    color: #ffffff;
    /* White color on hover */
}

.collapsible {
    cursor: pointer;
    padding: 12px 15px;
    /* Increased padding for better touch target */
    width: calc(100% - 30px);
    /* Adjust width to account for padding */
    border: none;
    text-align: left;
    outline: none;
    font-size: 2vw;
    /* Responsive font size based on viewport width */
    color: #ccc;
    background-color: transparent;
    /* Remove background color */
    border-bottom: 1px solid #555;
    /* Border for a subtle separation */
}

.collapsible:after {
    content: '\25B6';
    /* Unicode character for right arrow */
    float: left;
    margin-right: 10px;
    /* Space between arrow and text */
    font-size: 1.5vw;
    /* Responsive arrow size based on viewport width */
    transition: transform 0.2s ease-out;
    /* Smooth transition for arrow flip */
}

.active:after {
    content: '\25BC';
    /* Unicode character for down arrow */
    transform: translateY(2px);
    /* Adjust vertical alignment if needed */
}

.content {
    padding: 0 18px;
    display: none;
    overflow: hidden;
    background-color: #444;
    /* Background color for content */
    transition: max-height 0.2s ease-out;
}

/* Media Queries for Responsive Adjustments */
@media (max-width: 600px) {
    .collapsible {
        font-size: 3vw;
        /* Larger font size for smaller screens */
    }

    .collapsible:after {
        font-size: 2.5vw;
        /* Larger arrow size for better visibility */
    }
}