/* ------------------------------
   全体
------------------------------ */
body {
  font-family: "Hiragino Sans", "Yu Gothic", sans-serif;
  margin: 0;
  padding: 0;
  background: #faf7f2;
  color: #333;
}
container{
background:#fff;
max-width:900px;
mrgin: 30px auto;
padding: 20px 30px;
border-radius: 12px;
box-shadow:0 4px 15px rgba(0,0,0,0.1);
}

/* 和風の金色 */
:root {
  --nagoya-gold: #c6a300;
  --nagoya-red: #b40000;
}

/* ------------------------------
   ヘッダー
------------------------------ */
.site-header {
  background: white;
  border-bottom: 3px solid var(--nagoya-gold);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
}

.logo img {
  height: 60px;
  border-radius: 6px;
  border: 2px solid var(--nagoya-gold);
}

/* ナビ */
.nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  padding: 0;
  margin: 0;
}

.nav a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
  padding-bottom: 5px;
  border-bottom: 2px solid transparent;
}

.nav a:hover {
  border-bottom: 2px solid var(--nagoya-red);
  color: var(--nagoya-red);
}

/* ハンバーガー（スマホ用） */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #333;
  transition: 0.3s;
}

/* ------------------------------
   メインレイアウト
------------------------------ */
.site-main {
  display: flex;
  gap: 40px;
  padding: 40px 20px;
  max-width: 1100px;
  margin: auto;
}

/* コンテンツ部分 */
.content h2 {
  font-size: 2rem;
  border-left: 6px solid var(--nagoya-gold);
  padding-left: 12px;
  margin-bottom: 20px;
}

/* サイドバー */
.sidebar {
  background: white;
  padding: 20px;
  border-radius: 10px;
  border: 2px solid var(--nagoya-gold);
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  width: 350px;
}

.sidebar h2 {
  color: var(--nagoya-red);
  border-bottom: 2px solid var(--nagoya-gold);
  padding-bottom: 8px;
}

.sidebar img {
  width: 100%;
  margin-top: 10px;
  border-radius: 6px;
  border: 3px solid var(--nagoya-gold);
}

/* ------------------------------
   フッター
------------------------------ */
.site-footer {
  background: #333;
  color: #eee;
  padding: 20px 10px;
  margin-top: 50px;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 0;
}

.footer-nav a {
  color: #eee;
  text-decoration: none;
}

.copy {
  text-align: center;
  margin-top: 10px;
  font-size: 0.9rem;
}

/* ------------------------------
   スマホ対応
------------------------------ */
@media (max-width: 800px) {
  .site-main {
    flex-direction: column;
  }
  
  .sidebar {
    width: 100%;
  }

  .nav {
    display: none;
    position: absolute;
    top: 70px;
    right: 0;
    background: white;
    width: 100%;
    border-bottom: 3px solid var(--nagoya-gold);
  }

  .nav ul {
    flex-direction: column;
    padding: 20px;
  }

  .hamburger {
    display: flex;
  }

  .nav.active {
    display: block;
  }
}