.pdf-toggle-wrapper {
    margin: 2em 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    overflow: hidden;
}

.pdf-toggle-button {
    display: flex;
    justify-content: center; 
    align-items: center;
    width: 100%;
    padding: 15px 20px;
    font-size: 1.1em;
    font-weight: bold;
    color: #333;
    background-color: #f7f7f7;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
    gap: 10px;
}

.pdf-toggle-button:hover {
    background-color: #efefef;
}

.pdf-toggle-content {
    padding: 10px;
    background-color: #fff;
    border-top: 1px solid #ddd;
}

.pdf-toggle-content iframe {
    width: 100%;
    max-width: 100%;
    display: block;
    height: 850px;
}

.pdf-toggle-icon {
    position: relative;
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease-in-out;
}

.pdf-toggle-icon::before,
.pdf-toggle-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 2px;
    background-color: #555;
    transform: translate(-50%, -50%);
}

.pdf-toggle-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.pdf-toggle-button[aria-expanded="true"] .pdf-toggle-icon {
    transform: rotate(180deg);
}
.pdf-toggle-button[aria-expanded="true"] .pdf-toggle-icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
}