/* =========================================
   Footer Area Styling
   ========================================= */

.site-footer {
  background: #1b2e63;
  color: #fff;
  padding: 2rem 1rem;
  font-size: 0.9rem;
  text-align: center;
  border-top: 4px solid #264bbd;
}

.site-footer a {
  color: #cdd3f3;
  text-decoration: none;
  transition: color 0.25s ease;
}

.site-footer a:hover {
  color: #fff;
}

.footer-menu {
  margin-bottom: 1rem;
}

.footer-menu a {
  margin: 0 0.8rem;
}

.site-info {
  color: #ccd3e6;
  font-size: 0.85rem;
}

/* ページ上部へ戻るボタン */
.back-to-top {
  position: fixed;
  bottom: 25px;
  right: 25px;
  background: #264bbd;
  color: #fff;
  border-radius: 50%;
  width: 45px;
  height: 45px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: background 0.3s ease;
  z-index: 200;
}

.back-to-top:hover {
  background: #1538a0;
}

@media (max-width: 768px) {
  .footer-menu a {
    display: inline-block;
    margin: 0.4rem 0.6rem;
  }
}