.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #000;
    color: #fff;
    padding: 8px 16px;
    z-index: 100;
    text-decoration: none;
    font-weight: bold;
    transition: top 0.3s ease;
}
.skip-link:focus {
    top: 0;
}