/* ═══════════════════════════════════════════════════════════════
   footer.css — Site Footer
═══════════════════════════════════════════════════════════════ */

/* ── Footer wrapper ────────────────────────────────────────────── */
.site-footer {
    background: var(--nav-bg);
    border-top: none;
    margin-top: auto;
}

/* ── Main area ─────────────────────────────────────────────────── */
.footer-main {
    padding: 52px 0 36px;
}

/* ── Four-column grid ──────────────────────────────────────────── */
.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 40px;
}

/* ── Column headings ───────────────────────────────────────────── */
.footer-heading {
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: #fff;
    margin: 0 0 18px;
}

/* ── Contact column ────────────────────────────────────────────── */
.footer-contact-block {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.fc-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: rgba(255,255,255,.85);
    margin-top: 2px;
}

.footer-contact-item div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-contact-item strong {
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    display: block;
}

.footer-contact-item p,
.footer-contact-item a {
    font-size: 13px;
    color: rgba(255,255,255,.75);
    line-height: 1.55;
    text-decoration: none;
    margin: 0;
    transition: color .15s;
}

.footer-contact-item a:hover { color: #fff; }

/* ── Links list ────────────────────────────────────────────────── */
.footer-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-list a {
    font-size: 14px;
    color: rgba(255,255,255,.75);
    text-decoration: none;
    transition: color .15s;
}

.footer-links-list a:hover { color: #fff; }

/* ── Brand logo ────────────────────────────────────────────────── */
.footer-brand-logo {
    width: 120px;
    height: auto;
    margin-bottom: 16px;
    opacity: .85;
    transition: opacity .15s;
}

.footer-brand-logo:hover { opacity: 1; }

/* ── Social icons ──────────────────────────────────────────────── */
.footer-social {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.social-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.3);
    background: rgba(255,255,255,.12);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background .15s, border-color .15s, color .15s, transform .15s;
}

.social-icon:hover {
    background: rgba(255,255,255,.25);
    border-color: rgba(255,255,255,.6);
    color: #fff;
    transform: translateY(-2px);
}

/* ── Bottom bar ────────────────────────────────────────────────── */
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.18);
    padding: 16px 0;
    position: relative;
}

.footer-bottom-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255,255,255,.7);
    flex-wrap: wrap;
    gap: 8px;
}

/* ── Back to top ───────────────────────────────────────────────── */
.back-to-top {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.3);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background .15s, border-color .15s, color .15s, transform .2s;
}

.back-to-top:hover {
    background: rgba(255,255,255,.25);
    border-color: rgba(255,255,255,.6);
    color: #fff;
    transform: translateY(calc(-50% - 2px));
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-col--contact {
        grid-column: 1 / -1;
    }
}

@media (max-width: 560px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-col--contact {
        grid-column: auto;
    }

    .footer-main {
        padding: 36px 0 24px;
    }

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
    }

    .back-to-top {
        position: static;
        transform: none;
        margin: 12px auto 0;
    }

    .back-to-top:hover {
        transform: translateY(-2px);
    }
}