.site-footer {
    margin-top: 4rem;
    padding: 2.5rem 0 1rem;
    text-align: center;
    border-top: 1px solid var(--hairline);
}

.sm-container {
    display: flex;
    justify-content: center;
    gap: 1.75rem;
}

/* transform is driven by js/interactions.js */
.sm-icon {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    color: var(--ink-soft);
    opacity: .75;
    transition: color .25s var(--ease), opacity .25s var(--ease);
}

.sm-icon:hover,
.sm-icon:focus-visible {
    color: var(--ink);
    opacity: 1;
}

.sm-icon svg {
    display: block;
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.footer-note {
    margin-top: 1.6rem;
    font-size: .7rem;
    font-weight: 300;
    letter-spacing: .08em;
    color: var(--ink-soft);
    opacity: .7;
}