/* 全体レイアウト */
body {
    margin: 0;
    padding: 0;
    font-family: "Helvetica", "Arial", sans-serif;
    background-image: url("../images/website-background.webp");
    background-size: cover;
    background-attachment: scroll;
    background-repeat: no-repeat;
    background-position: top center;
    color: #222;
    line-height: 1.6;
  }
  
  /* メインエリア */
  main {
    max-width: 700px;
    margin: 30px auto;
    background-color: rgba(255, 255, 255, 0.9); /* 少し透ける白背景 */
    padding: 2em;
    border-radius: 10px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    text-align: center;
  }
  
  /* ヘッダー */
  header {
    text-align: center;
    margin-top: 60px;
    color: #275a22;
  }
  
  /* リンク一覧 */
  main a {
    display: inline-block;
    margin: 0.8em;
    padding: 0.6em 1.2em;
    text-decoration: none;
    color: white;
    background-color: #275a22;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.3s ease;
  }
  
  main a:hover {
    padding-left: 25px;
    padding-right: 25px;
    background-color: #8ab452;
  }

  main li {
    list-style: none;
  }

  .nav-links {
    padding: 0;
  }
  
  /* フッター */
  footer {
    text-align: center;
    padding: 2em 1em;
    font-size: 0.9rem;
    color: #555;
  }
  .sns-icons-footer {
    display: flex;
	  flex-direction: row;
    justify-content: center;
    gap: 10px;
    margin-top: 5px;
}
.sns-icons-footer a {
    background-color: #275a22;
}
.sns-icon {
    display: inline-flex; /* インラインのフレックスボックスにする */
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    font-size: 20px;
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: background-color 0.5s;
}
.sns-icon:hover {
    background-color: #8ab452;
}