/* フッタースタイル */
footer {
    background-color: var(--black);
    color: var(--white);
    padding: 80px 20px 35px;
    margin-top: 100px;
    border-top: 1px solid var(--gray);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-green), transparent);
    box-shadow: var(--glow-subtle);
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 60px;
    margin-bottom: 50px;
}

.footer-section h3 {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: var(--white);
    font-family: 'Rajdhani', 'Noto Sans JP', sans-serif;
    letter-spacing: 0.1em;
    position: relative;
    padding-bottom: 15px;
    text-transform: uppercase;
    font-weight: 500;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 1px;
    background: var(--neon-green);
    box-shadow: 0 0 8px rgba(57, 255, 20, 0.3);
}

.footer-section p,
.footer-section a {
    color: var(--lighter-gray);
    text-decoration: none;
    line-height: 1.9;
    font-weight: 400;
    transition: color 0.3s ease;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
}

.footer-section a:hover {
    color: var(--neon-green);
    text-shadow: 0 0 10px rgba(57, 255, 20, 0.3);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-bottom {
    border-top: 1px solid var(--gray);
    padding-top: 30px;
    text-align: center;
    color: var(--lighter-gray);
    font-weight: 300;
}

.discord-link {
    display: inline-block;
    padding: 16px 32px;
    background-color: transparent;
    color: var(--neon-green);
    text-decoration: none;
    border-radius: 0;
    font-weight: 500;
    margin-top: 15px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--neon-green);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 12px;
    font-family: 'Rajdhani', 'Noto Sans JP', sans-serif;
}

.discord-link:hover {
    background-color: var(--neon-green);
    color: var(--black);
    box-shadow: var(--glow-subtle);
}

/* レスポンシブ */
@media (max-width: 768px) {
    footer {
        padding: 60px 20px 30px;
        margin-top: 80px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-section h3 {
        font-size: 1.25rem;
    }
}