.h5p-custom-highlight {
    /* Keeps the entire area transparently colored */
    background-color: rgba(255, 235, 59, 0.35) !important; 
    
    /* Draws a distinct accent underline beneath the words */
    border-bottom: 2px solid #e65100 !important; 
    
    /* Ensures formatting doesn't break if a sentence splits across multiple rows */
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
    
    cursor: help;
    position: relative;
    display: inline;
    padding: 2px 0;
}

/* Make line and box color deeper when hovered over */
.h5p-custom-highlight:hover {
    background-color: rgba(255, 235, 59, 0.55) !important;
    border-bottom-color: #b71c1c !important;
}

/* Tooltip structure */
.h5p-custom-highlight:hover::after {
    content: "💡 Comment: " attr(data-comment);
    position: absolute;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #212121;
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-family: Arial, sans-serif;
    line-height: 1.4;
    z-index: 9999;
    white-space: normal;
    min-width: 200px;
    box-shadow: 0px 4px 8px rgba(0,0,0,0.3);
}