/* ==========================================================================
   フッター専用スタイル
   ========================================================================== */

.site-footer {
    background: #f8fafc;
    color: #64748b;
    padding: 4rem 1.5rem 2rem;
    border-top: 1px solid #e2e8f0;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

@media (max-width: 768px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

/* ブランド */
.footer-brand__logo {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-brand__logo a {
    background: linear-gradient(135deg, #4f46e5 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.footer-brand__logo .custom-logo {
    max-height: 2.5rem;
    width: auto;
}

.footer-brand__description {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    max-width: 300px;
}

/* ソーシャル */
.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social__link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    color: #64748b;
    transition: all 0.2s ease;
}

.footer-social__link:hover {
    background: #eef2ff;
    border-color: #c7d2fe;
    color: #4f46e5;
}

.footer-social__link i {
    width: 1.125rem;
    height: 1.125rem;
}

/* ナビゲーショングリッド */
.footer-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 2rem;
}

@media (max-width: 640px) {
    .footer-nav-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.footer-nav__title {
    font-size: 0.8125rem;
    font-weight: 700;
    color: #0f172a;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
}

.footer-nav__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav__list li {
    margin-bottom: 0.75rem;
}

.footer-nav__list a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #64748b;
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all 0.2s ease;
}

.footer-nav__list a:hover {
    color: #4f46e5;
}

.footer-nav__list a i {
    opacity: 0.5;
}

.footer-nav__list a:hover i {
    opacity: 1;
}

.footer-nav__indicator {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    flex-shrink: 0;
}

/* フッターボトム */
.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
    text-align: center;
}

.footer-bottom__copyright {
    font-size: 0.8125rem;
    color: #94a3b8;
}