body {
  font-family: 'Noto Sans JP', sans-serif;
  margin: 0;
  color: #333;
  background-color: #fff;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 3rem;
  background: #fff;
  border-bottom: 1px solid #eee;
}

.logo {
  font-size: 1.5rem;
  color: #3a5a40;
  font-weight: 400;
}

.nav a {
  margin-left: 1.5rem;
  color: #333;
  text-decoration: none;
  font-weight: 300;
}
.nav a:hover {
  color: #3a5a40;
}

/* Hero */
.hero {
  height: 90vh;
  background-size: cover;
  background-position: center;
  position: relative;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
}
.hero-overlay h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.btn {
  background: #3a5a40;
  color: #fff;
  padding: 0.8rem 2rem;
  border-radius: 9999px;
  text-decoration: none;
  transition: background 0.3s;
}
.btn:hover {
  background: #2f4c36;
}

/* Page hero */
.page-hero {
  height: 40vh;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
}
.page-hero h2 {
  position: relative;
  color: #fff;
  font-size: 2rem;
}

/* About / Sections */
.about, .menu-list, .staff, .contact {
  padding: 4rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}
.about img {
  width: 100%;
  margin-top: 1.5rem;
  border-radius: 8px;
}

/* Menu */
.menu-list ul {
  list-style: none;
  padding: 0;
}
.menu-list li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dotted #ccc;
  padding: 0.7rem 0;
  font-size: 1.1rem;
}

/* Staff */
.staff {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}
.staff-member img {
  width: 100%;
  border-radius: 8px;
}
.staff-member h3 {
  margin: 0.8rem 0 0.3rem;
  color: #3a5a40;
}

/* Contact */
.contact form {
  display: flex;
  flex-direction: column;
}
.contact label {
  margin-top: 1rem;
}
.contact input, .contact textarea {
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: inherit;
}
.contact button {
  margin-top: 1.5rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 1rem;
  background: #f5f5f5;
  color: #777;
  font-size: 0.9rem;
}

/* =========================
   📱 Responsive Design
   ========================= */

/* タブレット以下 */
@media (max-width: 1024px) {
  .header {
    padding: 1rem 1.5rem;
  }
  .nav a {
    margin-left: 1rem;
    font-size: 0.95rem;
  }
  .hero-overlay h2 {
    font-size: 1.8rem;
  }
  .about, .menu-list, .staff, .contact {
    padding: 3rem 1.5rem;
  }
}

/* スマホ（ハンバーガーメニュー導入） */
@media (max-width: 768px) {
  /* ナビゲーション非表示（デフォルト） */
  .nav {
    display: none;
    flex-direction: column;
    background: #fff;
    position: absolute;
    top: 60px;
    right: 0;
    width: 100%;
    border-top: 1px solid #eee;
  }
  .nav.active {
    display: flex;
  }

  /* ヘッダー配置 */
  .header {
    position: relative;
  }

  /* ハンバーガーアイコン */
  .menu-toggle {
    display: block;
    cursor: pointer;
  }
  .menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: #3a5a40;
    transition: 0.3s;
  }

  /* ロゴ中央寄せ */
  .header {
    justify-content: space-between;
    align-items: center;
  }

  /* Hero */
  .hero-overlay h2 {
    font-size: 1.5rem;
    text-align: center;
    margin: 0 1rem;
  }

  /* 各セクション */
  .about, .menu-list, .staff, .contact {
    padding: 2rem 1rem;
  }

  /* スタッフカード */
  .staff {
    grid-template-columns: 1fr;
  }

  /* メニュー */
  .menu-list li {
    font-size: 1rem;
  }
}

/* スマホ小画面（iPhone SEなど） */
@media (max-width: 480px) {
  .hero-overlay h2 {
    font-size: 1.2rem;
  }
  .btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
  .logo {
    font-size: 1.2rem;
  }
}

/* =========================
   🧩 ハンバーガーメニュー改良追加分
   ========================= */

/* 開閉時のアニメーション */
.menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ナビゲーション展開時のドロップ感 */
@media (max-width: 768px) {
  .nav {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
  }

  .nav a {
    padding: 0.8rem 0;
    text-align: center;
    border-top: 1px solid #eee;
  }
}

/* =========================
   🧱 ハンバーガー表示制御追加
   ========================= */

/* PCでは非表示 */
.menu-toggle {
  display: none;
}

/* スマホで表示 */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
    z-index: 1001;
  }

  /* ナビより前面に出す */
  .header {
    position: relative;
    z-index: 1000;
  }

  .nav {
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
  }
}