/* ========================================
   SECTION: Footer
   Purpose: Global site footer with aggregated navigation
   KT Notes: Uses CSS Grid for layout, responsive stacking
   ======================================== */

.footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid var(--color-gray-100);
    margin-top: var(--space-3xl);
    background-color: var(--color-white);
}

.footer__container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

/* Brand Column (Logo + Tagline) */
.footer__brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    max-width: 320px;
}

.footer__logo {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.footer__tagline {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-normal);
}

/* Menu Grid */
.footer__menu {
    display: grid;
    grid-template-columns: 1fr;
    /* Default 1 column for small mobile */
    gap: var(--space-xl);
}

@media (min-width: 480px) {
    .footer__menu {
        grid-template-columns: repeat(2, 1fr);
    }
}

.footer__column {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer__heading {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.footer__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer__link {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer__link:hover {
    color: var(--color-accent);
}

/* Bottom Bar */
.footer__bottom {
    margin-top: var(--space-3xl);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-gray-100);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.footer__copyright {
    color: var(--color-text-tertiary);
    font-size: var(--text-xs);
    text-align: center;
}

/* Responsive */
@media (min-width: 768px) {
    .footer__container {
        grid-template-columns: 1fr 2fr;
    }

    .footer__menu {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer__bottom {
        flex-direction: row;
        justify-content: space-between;
    }

    .footer__copyright {
        text-align: left;
    }
}