footer { padding: 50px 0; background-color: var(--theme-black-color); color: white; }
footer h3 { margin: calc((60px - 26.9px) / 2) 0 30px 0; }
footer a { color: inherit; text-decoration: none; transition: color 300ms ease; }
footer a:hover { color: var(--theme-gold-color); }
footer ul li a { transition: margin-left 300ms ease, color 300ms ease; }
footer ul li a:hover { color: var(--theme-gold-color); background-color: transparent; margin-left: 15px; }
footer ul li a::before {
    position: absolute;
    left: -10px;
    color: var(--theme-gold-color);
    opacity: 0;
    visibility: hidden;
    content: "\e5cc";
    font-family: 'Material Symbols Outlined';
    transition: all 300ms ease;
}
footer ul li a:hover::before { left: -5px; opacity: 1; visibility: visible; }
footer img { height: 200px; width: auto; background-color: white; }
footer .back-to-top {
    position: fixed;
    right: 30px;
    bottom: 40px;
    height: 40px;
    width: 40px;
    line-height: 40px;
    border-radius: 50%;
    text-align: center;
    background-color: var(--theme-gold-color);
    color: white;
    border: 1px solid white;
    opacity: 0;
    z-index: 1;
    transition: opacity 500ms ease;
}
footer .back-to-top span { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); }
footer .back-to-top.show { opacity: 1; }