/* Footer Styles */
.site-footer {
    background: linear-gradient(135deg, #1ca0ca 0%, #0e89b0 100%);
    color: white;
    padding: 60px 0 0;
    margin-top: 80px;
  }
  
  .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 60px;
    align-items: stretch;
    position: relative;
  }
  
  /* 左カラム：ロゴ＋コンタクト */
  .footer-col--left {
    display: flex;
    flex-direction: column;
    gap: 30px;
  }
  
  .footer-logo-section {
    margin-bottom: 10px;
  }
  
  .footer-logo {
    height: 60px;
    width: auto;
    filter: brightness(0) invert(1); /* ロゴを白色に */
  }
  
  .footer-contact {
    line-height: 1.6;
  }
  
  .footer-postal {
    font-size: 16px;
    margin: 0 0 8px 0;
    font-weight: 500;
  }
  
  .footer-address {
    font-style: normal;
    font-size: 16px;
    margin: 0 0 15px 0;
    line-height: 1.5;
  }
  
  .footer-email {
    margin: 0;
  }
  
  .footer-email a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: opacity 0.3s ease;
  }
  
  .footer-email a:hover {
    opacity: 0.8;
  }
  
  /* 中央カラム：ACTIVITY */
  .footer-col--center {
    text-align: left;
    border-left: 2px solid white;
    padding-left: 30px;
    display: grid;
    grid-template-rows: auto auto auto auto; /* タイトル＋3アイテム */
    row-gap: 20px;
    flex-direction: column;
    justify-content: center;
  }
  
  .footer-title {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    margin: 0 0 0 0;
    color: white;
  }
  
  .footer-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: contents;
    flex-direction: column;
    gap: 20px;
  }
  
  .footer-list li {
    margin: 0;
    font-size: 16px;
    line-height: 1.4;
    display: flex;
    align-items: center;
    height: 24px;
  }
  
  .footer-list li a {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
  }
  
  .footer-list li a:hover {
    opacity: 0.8;
  }
  
  /* 右カラム：サイトリンク＋SNS */
  .footer-col--right {
    display: flex;
    flex-direction: column;
    gap: 40px;
  }
  
    /* ── STEP2 ── */
    /* Nav カラムも同じく 4行で grid に */
  /* 中央右カラム：サイトリンク */
  .footer-col--nav {
    display: grid;
    grid-template-rows: repeat(4, auto); /* 4リンク分 */
    row-gap: 20px;
    text-align: left;
  }
  
  /* 右カラム：SNS */
  .footer-col--social {
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: flex-start;
    height: 100%;
  }
  
  .footer-nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: contents;
}
  
  .footer-nav li {
    margin: 0;
  }
  
  .footer-nav li a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    line-height: 1.4;
    transition: opacity 0.3s ease;
  }
  
  .footer-nav li a:hover {
    opacity: 0.8;
  }
  
  /* SNS Section */
  .footer-social {
    display: flex;
    flex-direction: column;
    gap: 15px;
    border-left: 2px solid white;
    padding-left: 30px;
    margin-top: auto;
  }
  
  .footer-social__label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    margin: 0;
    color: white;
  }
  
  .footer-social__icons {
    display: flex;
    gap: 15px;
    align-items: center;
  }
  
  .social-link {
    display: inline-block;
    transition: transform 0.3s ease;
  }
  
  .social-link:hover {
    transform: scale(1.1);
  }
  
  .social-link img {
    width: 30px;
    height: 30px;
    filter: brightness(0) invert(1); /* アイコンを白色に */
  }

  .social-link--youtube img {
    width: 97px;
    height: 22px;
    filter: brightness(0) invert(1); /* アイコンを白色に */
  }
    
  /* ボトム部分 */
  .footer-bottom {
    margin-top: 50px;
    padding: 25px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    justify-content: flex-end;
    align-items: center;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    gap: 30px;
  }
  
  .footer-legal {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 30px;
    order: 1;
  }
  
  .footer-legal li a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    transition: opacity 0.3s ease;
  }
  
  .footer-legal li a:hover {
    opacity: 0.8;
  }
  
  .footer-copyright {
    margin: 0;
    font-size: 14px;
    color: white;
    opacity: 0.8;
    order: 2;
  }
  
  /* レスポンシブ対応 */
  @media (max-width: 768px) {
    .footer-inner {
      grid-template-columns: 1fr;
      gap: 40px;
      text-align: center;
    }
    
    .footer-col--left,
    .footer-col--center,
    .footer-col--nav,
    .footer-col--social {
      text-align: center;
    }
    
    .footer-col--center,
    .footer-social {
      border-left: none;
      padding-left: 0;
    }
    
    .footer-social__icons {
      justify-content: center;
    }
    
    .footer-bottom {
      flex-direction: column;
      gap: 20px;
      text-align: center;
      justify-content: center;
    }
    
    .footer-legal {
      flex-direction: column;
      gap: 15px;
      order: 2;
    }
    
    .footer-copyright {
      order: 1;
    }
  }