/* フッター */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: white;
    font-size: 1.5rem;
    transition: transform 0.3s, color 0.3s;
}

.social-links a:hover {
    transform: translateY(-3px);
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 0.7rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 600px) {
  .footer-content {
    width: 100%;
    display: block;
  }
  .footer-links {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    width: 100%;
    padding: 1.5rem 0 0.5rem 0;
  }
  .footer-links a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: color 0.3s;
  }
  .footer-links a:not(:last-child)::after {
    content: '/';
    margin: 0 1rem;
    color: rgba(255,255,255,0.5);
    font-size: 1.1em;
  }
}