#go-top-button {
    display: none;
    padding: 16px 20px;
    cursor: pointer;
    position: fixed;
    bottom: 20px;
    right: 20px;
    border-radius: 50px;
    border: 3px solid var(--color-accent);
    z-index: 1;
    background-color: transparent;
    color: var(--color-accent);
    font-size: 28px;
    transition: background-color 0.2s ease, color 0.2s ease;
}

#go-top-button:hover {
    background-color: var(--color-accent);
    color: #fff;
}