/* =========================================
   FOOTER + MAP
   ========================================= */

.site-footer {
    background: var(--deep);
    color: #fff;
    padding: var(--space-3xl) var(--space-md) var(--space-xl);
}

.site-footer__inner {
    max-width: var(--container-max);
    margin: 0 auto;
}

.site-footer__top {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.site-footer__brand {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.site-footer__brand-sub {
    font-size: 14px;
    color: var(--gold-light);
    display: block;
    margin-top: 4px;
    font-family: var(--font-body);
    font-weight: 400;
}

.site-footer__info {
    font-size: 15px;
    line-height: 2;
    opacity: 0.8;
}

.site-footer__info dt {
    font-weight: 700;
    color: var(--gold-light);
    display: inline;
}

.site-footer__info dd {
    display: inline;
    margin-left: 8px;
    margin-right: 0;
}

.site-footer__nav-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--gold-light);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.site-footer__nav-list {
    list-style: none;
    display: grid;
    gap: var(--space-sm);
}

.site-footer__nav-link {
    font-size: 15px;
    opacity: 0.8;
    transition: opacity var(--duration-fast);
}

.site-footer__nav-link:hover {
    opacity: 1;
    color: var(--gold-light);
}

.site-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.site-footer__copy {
    font-size: 14px;
    opacity: 0.5;
}

.site-footer__sns {
    display: flex;
    gap: var(--space-md);
}

.site-footer__sns a {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: grid;
    place-items: center;
    transition: all 0.2s;
}

.site-footer__sns a:hover {
    border-color: var(--gold-light);
    background: rgba(255, 255, 255, 0.05);
}

.map-embed {
    width: 100%;
    overflow: hidden;
}

.map-embed iframe {
    width: 100%;
    height: 300px;
    border: 0;
    display: block;
}

/* --- Back to Top --- */
.back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--card-bg);
    border: 1px solid var(--line);
    border-radius: 50%;
    display: grid;
    place-items: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-fast);
    z-index: 50;
    opacity: 0;
    pointer-events: none;
}

.back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
}

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


/* =========================================
   md — タブレット以上
   ========================================= */

@media (min-width: 768px) {
    .site-footer__top {
        grid-template-columns: 1.2fr 1fr;
    }

    .map-embed iframe {
        height: 400px;
    }
}