/* ===========================
   FOOTER
=========================== */
#footer {
  background: #111111;
  padding: 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 3rem;
}

.footer-brand .logo { margin-bottom: 1rem; }

.footer-logo .logo-img {
  height: auto;
  width: 180px;
  max-width: 100%;
  filter: brightness(0) invert(1);
  opacity: 0.92;
}

.footer-tagline {
  font-family: var(--font-serif);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
  max-width: 280px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.footer-col h4 {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--gold-lt);
  margin-bottom: 1rem;
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }

.footer-col a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

.footer-col a:hover { color: #ffffff; }

/* 公式SNS: 各事業の Instagram リンク（アイコン + 事業名） */
.footer-sns { display: inline-flex; align-items: center; gap: 0.4rem; }

.footer-sns svg { flex-shrink: 0; opacity: 0.85; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  padding: 1.5rem 2rem;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.05em;
}

@media (max-width: 900px) {
  .footer-container { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-links { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  .footer-container { gap: 2rem; }
  .footer-links { grid-template-columns: 1fr; }
}