/* フッターのスタイル */
.site-footer {
    background-color: #000;
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-heading {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-organizer {
    margin-bottom: 3rem;
}

.footer-company {
    font-size: 1.5rem;
    font-weight: bold;
}

.footer-navigation {
    margin-bottom: 3rem;
}

.footer-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    line-height: 2;
}

.footer-menu li {
    margin: 0;
    padding: 0;
}

.footer-menu a {
    color: #fff;
    text-decoration: none;
    transition: opacity 0.3s ease;
    font-size: 1rem;
    padding: 0.5rem;
    display: inline-block;
}

.footer-menu a:hover {
    opacity: 0.7;
}

.footer-copyright {
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.5;
    margin-top: 2rem;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .site-footer {
        padding: 3rem 1rem 2rem;
    }

    .footer-container {
        padding: 0 1rem;
    }

    .footer-menu {
        gap: 1rem;
        justify-content: center;
        padding: 0 1rem;
        flex-direction: column;
        align-items: center;
    }

    .footer-menu a {
        font-size: 0.9rem;
        padding: 0.5rem;
    }

    .footer-company {
        font-size: 1.25rem;
    }

    .footer-copyright {
        margin-top: 1.5rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .site-footer {
        padding: 2rem 0.8rem 1.5rem;
    }

    .footer-container {
        padding: 0 0.5rem;
    }

    .footer-heading {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }

    .footer-company {
        font-size: 1.1rem;
    }

    .footer-menu a {
        font-size: 0.8rem;
        padding: 0.4rem;
    }

    .footer-copyright {
        margin-top: 1rem;
        font-size: 0.7rem;
        line-height: 1.4;
    }
}
