.back {
    position: fixed;
    top: 20px;
    left: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;

    display: inline-block;
    text-decoration: none;
    color: var(--muted);
    font-size: 0.9rem;

    transition: 0.3s ease;
}

.back:hover {
    opacity: 0.7;
    transform: translateX(-3px);
}