#accessibility-sidebar {
    position: fixed;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    width: 100px;
    background-color: rgba(241, 241, 241, 0.5);
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: all 500ms;
}

#accessibility-sidebar:hover {
    background-color: rgba(241, 241, 241, 0.95);
}

#accessibility-sidebar button {
    display: block;
    margin-bottom: 10px;
    padding: 5px 10px;
    border: none;
    border-radius: 3px;
    background-color: #4a90e2;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    width: 100%
}

#accessibility-sidebar button:hover {
    background-color: #3884c7;
}

#accessibility-sidebar button:last-child {
    margin-bottom: 0;
}

.high-contrast {
    filter: invert(100%) hue-rotate(180deg);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.up-to-top {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
}

.up-arrow {
    width: 35px;
    height: 35px;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 13px;
}