footer {
    border-top: 1px solid var(--rule);
}

.footer-main {
    padding: 64px 0 48px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-brand-logo {
    font-family: 'DM Serif Display', serif;
    font-size: 22px;
    color: var(--ink);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 16px;
}

.footer-brand-logo span {
    color: var(--accent);
}

.footer-brand-desc {
    font-size: 13.5px;
    color: var(--muted);
    line-height: 1.65;
    max-width: 260px;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.footer-social a {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--rule);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    text-decoration: none;
    transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.footer-social a:hover {
    border-color: var(--ink);
    color: var(--ink);
    background: var(--paper);
}

.footer-col-title {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink);
    margin-bottom: 20px;
}

.footer-col-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col-links a {
    font-size: 13.5px;
    color: var(--muted);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-col-links a:hover {
    color: var(--ink);
}

.footer-bottom {
    padding: 20px 0;
    border-top: 1px solid var(--rule);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copy {
    font-size: 12px;
    color: var(--muted);
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-bottom-links a {
    font-size: 12px;
    color: var(--muted);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-bottom-links a:hover {
    color: var(--ink);
}

@media (max-width: 900px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .footer-main {
        grid-template-columns: 1fr;
    }
}