/* ============================================================
   厚木テコンドー道場 v3 - メインスタイルシート

   デザインコンセプト:
   - 温かみのある凛とした雰囲気
   - 武道道場らしい緊張感と人間味の両立

   カラーパレット:
   - ベース: #F8F8F6 (オフホワイト)
   - テキスト: #111111 (濃墨)
   - アクセント: #C86400 (柿色) ※CTA・アイコン・ホバーのみ
   - ライン: #D9D9D9 (ニュートラルグレー)
   - サブBG: #F2F2F0 (明るいグレー)
   - サブテキスト: #555555 (ミディアムグレー)

   フォント: Noto Sans JP + Noto Serif JP (Google Fonts)
   ============================================================ */

/* ----------------------------------------
   リセット・ベース
   ---------------------------------------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 400;
  line-height: 1.8;
  color: #111111;
  background-color: #F8F8F6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: #111111;
  text-decoration: none;
  transition: color 0.3s ease, opacity 0.3s ease;
}

ul, ol {
  list-style: none;
}

/* ----------------------------------------
   共通ユーティリティ
   ---------------------------------------- */

/* コンテナ: 最大幅1080px、左右余白 */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* セクション間の余白 */
.section {
  padding: 80px 0;
}

/* 背景色付きセクション */
.section--gray {
  background-color: #ECEAE6;
}

/* セクション見出し（共通） */
.section__heading {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  text-align: center;
}

.section__lead {
  text-align: center;
  font-size: 0.9rem;
  color: #555;
  line-height: 2;
  margin-bottom: 48px;
}

.about-intro {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.about-intro p {
  font-size: 0.95rem;
  line-height: 2.2;
  color: #333;
  margin-bottom: 24px;
}

/* TOP引用ブロック */
.top-quote {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 32px 32px 28px;
  border-left: 3px solid #C86400;
  background-color: #F2F0EC;
  border-radius: 0 4px 4px 0;
}

.top-quote p {
  font-size: 0.95rem;
  line-height: 2;
  color: #333;
  margin-bottom: 16px;
}

.top-quote footer {
  font-size: 0.8rem;
  color: #777;
  text-align: right;
}

/* セクション見出し下の英字サブタイトル */
.section__heading-en {
  display: block;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: #aaa;
  text-transform: uppercase;
  margin-bottom: 48px;
  text-align: center;
}

/* 区切り線 */
.divider {
  width: 40px;
  height: 2px;
  background-color: #D9D9D9;
  margin: 0 auto 48px;
}

/* ----------------------------------------
   ヘッダー
   参考: fastracksales.com 風のクリーンなヘッダー
   - 白背景 + 細いボーダー
   - ロゴ左、ナビ右
   - スクロール時にシャドウ追加（JSで制御）
   ---------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: #111111;
  border-bottom: none;
  transition: box-shadow 0.3s ease;
}

/* スクロール時のシャドウ（JSで.header--scrolledを付与） */
.header--scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
}

/* ロゴ */
.header__logo a {
  display: flex;
  align-items: center;
}

/* ロゴ画像 */
.header__logo-img {
  height: 48px;
  width: auto;
}

/* PC用ナビゲーション */
.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav a {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #fff;
  position: relative;
  padding: 4px 0;
}

/* ナビリンクのホバーライン */
.header__nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #C86400;
  transition: width 0.3s ease;
}

.header__nav a:hover::after,
.header__nav a.is-current::after {
  width: 100%;
}

.header__nav a:hover {
  opacity: 1;
}

/* お問い合わせボタン（ヘッダー内） - 他ナビと統一 */
.header__cta {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #fff;
  padding: 4px 0;
  position: relative;
}

.header__cta::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #C86400;
  transition: width 0.3s ease;
}

.header__cta:hover::after {
  width: 100%;
}

.header__cta:hover {
  opacity: 1;
}

/* ----------------------------------------
   ハンバーガーメニュー（スマホ用）
   ---------------------------------------- */
.hamburger {
  display: none; /* PC時は非表示 */
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 1100;
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: #fff;
  transition: all 0.3s ease;
}

.hamburger__line:nth-child(1) {
  margin-bottom: 6px;
}

.hamburger__line:nth-child(3) {
  margin-top: 6px;
}

/* ハンバーガー開状態: ×アニメーション */
.hamburger.is-active .hamburger__line {
  background-color: #111;
}

.hamburger.is-active .hamburger__line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active .hamburger__line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* モバイルナビオーバーレイ */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.98);
  z-index: 1050;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-nav.is-open {
  display: flex;
  opacity: 1;
}

.mobile-nav__close {
  position: absolute;
  top: 8px;
  right: 16px;
  background: none;
  border: none;
  font-size: 2.4rem;
  color: #111;
  cursor: pointer;
  line-height: 1;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1200;
}

.mobile-nav a {
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: #111111;
}

.mobile-nav a:hover {
  opacity: 0.6;
}

/* ----------------------------------------
   ヘッダー下の余白（fixedヘッダー分）
   ---------------------------------------- */
.header-spacer {
  height: 72px;
}

/* ----------------------------------------
   ヒーローセクション（TOPページ用）
   - 大きなビジュアルエリア
   - テキストオーバーレイ
   ---------------------------------------- */
.hero {
  position: relative;
  width: 100%;
  height: 85vh;
  min-height: 500px;
  max-height: 800px;
  overflow: hidden;
  background-color: #111; /* 画像読み込み前のプレースホルダー色 */
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ヒーローオーバーレイ（ダーク×柿色ライン） */
.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(to right, rgba(17, 17, 17, 0.75) 0%, rgba(17, 17, 17, 0.3) 50%, transparent 100%),
    linear-gradient(to top, rgba(17, 17, 17, 0.6) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 0;
}

.hero__content {
  max-width: 560px;
  margin-left: 6%;
  padding: 0 24px 48px;
  text-align: left;
}

.hero__sub-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero__catch {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: #fff;
  margin-bottom: 16px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
}

.hero__sub {
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.85);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
}

/* ----------------------------------------
   ボタン共通
   ---------------------------------------- */
.btn {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 14px 32px;
  border-radius: 2px;
  transition: all 0.3s ease;
  text-align: center;
}

/* プライマリボタン（柿色背景） */
.btn--primary {
  color: #fff;
  background-color: #C86400;
  border: 1px solid #C86400;
}

.btn--primary:hover {
  background-color: #A85300;
  border-color: #A85300;
  color: #fff;
  opacity: 1;
}

/* 小ボタン（ヒーロー用） */
.btn--sm {
  font-size: 0.95rem;
  padding: 4px 14px;
  white-space: nowrap;
  border-radius: 10px;
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.85);
  color: #fff;
}

/* アウトラインボタン */
.btn--outline {
  color: #fff;
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.85);
}

.btn--outline:hover {
  background-color: #fff;
  color: #151516;
  border-color: #fff;
  opacity: 1;
}

/* ダークボタン（送信ボタン用 - 柿色） */
.btn--dark {
  color: #fff;
  background-color: #C86400;
  border: 1px solid #C86400;
}

.btn--dark:hover {
  background-color: #b55a00;
  border-color: #b55a00;
  opacity: 1;
}

/* ライトアウトラインボタン（白背景ページ用） */
.btn--outline-dark {
  color: #111;
  background-color: transparent;
  border: 1px solid #111;
}

.btn--outline-dark:hover {
  background-color: #111;
  color: #fff;
  opacity: 1;
}

/* 矢印付きリンク */
.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #111;
  transition: gap 0.3s ease;
}

.arrow-link:hover {
  gap: 12px;
  opacity: 1;
}

.arrow-link::after {
  content: "→";
  font-size: 1rem;
}

/* ----------------------------------------
   3つのポイントセクション
   ---------------------------------------- */
.points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.point-card {
  text-align: center;
  background-color: #fff;
  border: 1px solid #E0E0E0;
  border-radius: 4px;
  padding: 0;
  overflow: hidden;
}

.point-card__number {
  font-size: 2rem;
  font-weight: 700;
  color: #C86400;
  line-height: 1;
  margin-bottom: 0;
  padding: 20px 24px 12px;
  opacity: 0.3;
}

.point-card__image {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.point-card__title {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
  line-height: 1.5;
  padding: 0 24px;
}

.point-card__text {
  font-size: 0.9rem;
  line-height: 2;
  color: #333;
  text-align: left;
  padding: 0 24px 28px;
}

/* ----------------------------------------
   指導員紹介セクション
   ---------------------------------------- */
.instructor {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: start;
}

.instructor--compact {
  max-width: 800px;
  margin: 0 auto;
}

.instructor__photo {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  border-radius: 2px;
}

.instructor__role {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: #999;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.instructor__name {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.instructor__name-en {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: #555;
  margin-bottom: 24px;
}

.instructor__career {
  margin-bottom: 24px;
}

.instructor__career dt {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.instructor__career dd {
  font-size: 0.875rem;
  line-height: 2;
  color: #333;
}

.instructor__message {
  font-size: 0.9rem;
  line-height: 2;
  color: #333;
}

/* ----------------------------------------
   道場長メッセージ（TOP短縮版）
   ---------------------------------------- */
.top-message {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.top-message__text {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 2.2;
  color: #333;
}

.top-message__name {
  margin-top: 24px;
  font-size: 0.85rem;
  color: #777;
  letter-spacing: 0.06em;
}

/* ----------------------------------------
   活動拠点リスト
   ---------------------------------------- */
.location-list {
  max-width: 720px;
  margin: 0 auto;
}

.location-row {
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid #E0E0E0;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.2s ease;
}

.location-row:first-child {
  border-top: 1px solid #E0E0E0;
}

.location-row:hover {
  background-color: rgba(0, 0, 0, 0.02);
  opacity: 1;
}

.location-row__name {
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  min-width: 160px;
}

.location-row__detail {
  font-size: 0.85rem;
  color: #555;
  line-height: 1.8;
}

.location-row--closed {
  opacity: 0.5;
}

.badge--closed {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 500;
  color: #fff;
  background-color: #999;
  padding: 2px 8px;
  border-radius: 2px;
  margin-left: 8px;
  vertical-align: middle;
}

/* トップページ新着コラム（テキストリスト） */
.top-column-list {
  max-width: 720px;
  margin: 0 auto;
}

.top-column-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid #E0E0E0;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.2s ease;
}

.top-column-item:first-child {
  border-top: 1px solid #E0E0E0;
}

.top-column-item:hover {
  background-color: rgba(0, 0, 0, 0.02);
  opacity: 1;
}

.top-column-date {
  font-size: 0.8rem;
  color: #999;
  white-space: nowrap;
  min-width: 90px;
}

.top-column-title {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.6;
}

@media (max-width: 480px) {
  .top-column-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}

/* ----------------------------------------
   CTAセクション
   ---------------------------------------- */
.cta-section {
  text-align: center;
  padding: 48px 0;
  background-color: #111;
  color: #fff;
}

.cta-section__heading {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.cta-section__text {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 32px;
}

/* ----------------------------------------
   ページヘッダー（下層ページ共通）
   - 余白たっぷり、左寄せ
   ---------------------------------------- */
.page-header {
  padding: 32px 0 28px;
  background-color: #F2F0EC;
  border-bottom: 1px solid #D9D9D9;
}

.page-header__title {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #111;
  margin-bottom: 4px;
}

.page-header__en {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: #999;
  text-transform: uppercase;
}

/* ----------------------------------------
   About（厚木道場について）
   ---------------------------------------- */
.about-message {
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
}

.about-message__lead {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.8;
  margin-top: 40px;
  margin-bottom: 32px;
  padding-left: 20px;
  border-left: 3px solid #C86400;
  text-align: left;
}

.about-message__text {
  font-size: 0.95rem;
  line-height: 2.2;
  color: #333;
}

.about-message__note {
  font-size: 0.85rem;
  color: #777;
  margin-bottom: 24px;
}

/* 写真ストリップ（横並び小写真） */
.photo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

.photo-strip img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
}

/* PC: ドット非表示 */
.photo-strip-dots {
  display: none;
}

.section--no-padding-top {
  padding-top: 0;
}

/* 練習内容リスト */
.practice-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.practice-item {
  background-color: #fff;
  border: 1px solid #D9D9D9;
  border-left: 3px solid #D9D9D9;
  border-radius: 2px;
  padding: 28px 24px;
}

.practice-item__number {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #999;
  margin-bottom: 8px;
}

.practice-item__title {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.practice-item__text {
  font-size: 0.85rem;
  line-height: 1.9;
  color: #333;
}

/* 練習内容 縦リスト（枠なし） */
.practice-vertical {
  max-width: 800px;
  margin: 0 auto;
}

.practice-vertical__item {
  padding: 28px 0;
  border-bottom: 1px solid #E0E0E0;
}

.practice-vertical__item:first-child {
  border-top: 1px solid #E0E0E0;
}

.practice-vertical__number {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #999;
  margin-bottom: 8px;
}

.practice-vertical__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.practice-vertical__text {
  font-size: 0.85rem;
  line-height: 1.9;
  color: #333;
}

.practice-vertical__note {
  margin-top: 32px;
  padding: 24px;
  background-color: rgba(0, 0, 0, 0.03);
  border-radius: 2px;
}

.practice-vertical__note-text {
  font-size: 0.85rem;
  line-height: 2;
  color: #555;
}

/* ----------------------------------------
   Beginner（初めての方へ）
   ---------------------------------------- */

/* テコンドーとは */
.intro-block {
  max-width: 720px;
  margin: 0 auto;
}

.intro-block__text {
  font-size: 0.95rem;
  line-height: 2.2;
  color: #333;
  margin-bottom: 20px;
}

/* 体験レッスンの流れ（タイムライン） */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 840px;
  margin: 0 auto;
}

.timeline__step {
  text-align: center;
  position: relative;
}

.timeline__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 2px solid #111;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
  color: #111;
}

.timeline__title {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline__text {
  font-size: 0.8rem;
  color: #555;
  line-height: 1.7;
}

/* スケジュールテーブル（体験・クラス共通） */
.schedule-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.schedule-table th,
.schedule-table td {
  padding: 14px 16px;
  border-bottom: 1px solid #D9D9D9;
  text-align: left;
  vertical-align: top;
}

.schedule-table th {
  font-weight: 500;
  color: #555;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
  width: 120px;
}

.schedule-table thead th {
  font-weight: 700;
  color: #111;
  border-bottom: 2px solid #111;
}

/* FAQ アコーディオン */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid #D9D9D9;
}

.faq-item__question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 0;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: "Noto Sans JP", sans-serif;
  color: #111;
  line-height: 1.6;
}

.faq-item__question::after {
  content: "+";
  font-size: 1.2rem;
  font-weight: 300;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.faq-item.is-open .faq-item__question::after {
  content: "−";
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.is-open .faq-item__answer {
  max-height: 300px;
  padding-bottom: 20px;
}

.faq-item__answer p {
  font-size: 0.9rem;
  line-height: 1.9;
  color: #333;
}

/* ----------------------------------------
   Class（クラス・アクセス）
   ---------------------------------------- */
.class-desc {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

.class-desc__item {
  padding: 0;
  background-color: #fff;
  border: 1px solid #D9D9D9;
  border-radius: 2px;
  overflow: hidden;
}

.class-desc__photo {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.class-desc__item .class-desc__label,
.class-desc__item .class-desc__title,
.class-desc__item .class-desc__text {
  padding-left: 28px;
  padding-right: 28px;
}

.class-desc__item .class-desc__label {
  padding-top: 24px;
}

.class-desc__item .class-desc__text {
  padding-bottom: 28px;
}

.class-desc__label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: #999;
  margin-bottom: 8px;
}

.class-desc__title {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.class-desc__text {
  font-size: 0.875rem;
  line-height: 1.9;
  color: #333;
}

/* アクセス情報カード */
.access-card {
  background-color: #fff;
  border: 1px solid #D9D9D9;
  border-radius: 2px;
  padding: 32px;
  margin-bottom: 24px;
}

.access-card__name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.access-card__area {
  font-size: 0.8rem;
  color: #777;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.access-card__detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.access-card__map {
  width: 100%;
  aspect-ratio: 16/9;
  border: 0;
  border-radius: 2px;
}

.access-card__info {
  font-size: 0.85rem;
  line-height: 1.8;
  color: #333;
}

.access-card__info dt {
  font-weight: 700;
  color: #C86400;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  margin-top: 12px;
  text-transform: uppercase;
}

.access-card__info dt:first-child {
  margin-top: 0;
}

.access-card__info dd {
  margin-bottom: 0;
}

.access-card__sep {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #E0E0E0;
}

/* ----------------------------------------
   Column（コラム - note RSS）
   ---------------------------------------- */
.column-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.column-card {
  background-color: #fff;
  border: 1px solid #D9D9D9;
  border-radius: 2px;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.column-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  opacity: 1;
}

.column-card__image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background-color: #F2EDE7;
}

.column-card__image--empty {
  display: block;
  background-color: #F0F0F0;
}

.column-card__body {
  padding: 20px;
}

.column-card__date {
  font-size: 0.75rem;
  color: #999;
  letter-spacing: 0.04em;
  margin-top: 8px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.column-card__new {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 700;
  color: #fff;
  background-color: #C86400;
  padding: 1px 6px;
  border-radius: 2px;
  letter-spacing: 0.06em;
}

.column-card__title {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ローディング・エラー表示 */
.column-loading,
.column-error {
  text-align: center;
  padding: 60px 0;
  font-size: 0.9rem;
  color: #555;
}

/* ----------------------------------------
   Link（リンク集）
   ---------------------------------------- */
.link-group {
  margin-bottom: 48px;
}

.link-group__title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #C86400;
}

.link-list li {
  margin-bottom: 12px;
}

.link-list a {
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #111;
  text-decoration: none;
}

.link-list a span {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.link-list a::before {
  content: "→";
  font-size: 0.8rem;
  color: #999;
}

.link-list a:hover {
  opacity: 0.7;
}

.link-list__desc {
  font-size: 0.8rem;
  line-height: 1.8;
  color: #555;
  margin-top: 4px;
  padding-left: 24px;
}

/* ----------------------------------------
   Contact（お問い合わせ）
   ---------------------------------------- */
.contact-lead {
  max-width: 600px;
  font-size: 0.9rem;
  line-height: 2;
  color: #333;
  margin-bottom: 48px;
}

.contact-form {
  max-width: 640px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 28px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 8px;
}

.form-group label .required {
  font-size: 0.7rem;
  color: #C84040;
  margin-left: 6px;
  font-weight: 500;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="date"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #D9D9D9;
  border-radius: 2px;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.9rem;
  background-color: #fff;
  transition: border-color 0.3s ease;
  color: #111;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: #C86400;
}

.form-group textarea {
  height: 160px;
  resize: vertical;
}

.form-submit {
  margin-top: 32px;
  text-align: center;
}

.form-submit .btn {
  width: 100%;
  max-width: 280px;
  cursor: pointer;
  border: none;
  font-family: "Noto Sans JP", sans-serif;
}

/* ----------------------------------------
   フッター
   ---------------------------------------- */
.footer {
  background-color: #111;
  color: rgba(255, 255, 255, 0.7);
  padding: 40px 0 24px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand {
  font-family: "Noto Serif JP", "Noto Sans JP", serif;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.footer__brand-sub {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

.footer__text {
  font-size: 0.8rem;
  line-height: 1.8;
}

.footer__nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.footer__nav a {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.02em;
}

.footer__nav a:hover {
  color: #fff;
  text-decoration: underline;
  opacity: 1;
}

.footer__copyright {
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.4);
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ----------------------------------------
   レスポンシブ（タブレット: 768px以下）
   ---------------------------------------- */
/* ----------------------------------------
   レスポンシブ（タブレット: 1120px以下）
   ヘッダーのみハンバーガーに切り替え
   ---------------------------------------- */
@media (max-width: 1120px) {
  .header__nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .header__inner {
    height: 60px;
  }

  .header__logo-img {
    height: 36px;
  }

  .header-spacer {
    height: 60px;
  }
}

/* ----------------------------------------
   レスポンシブ（スマホ: 768px以下）
   ---------------------------------------- */
@media (max-width: 768px) {
  /* ヒーロー */
  .hero {
    height: 70vh;
    min-height: 400px;
  }

  .hero__catch {
    font-size: 2rem;
  }

  .hero__sub {
    font-size: 0.9rem;
  }

  .hero__overlay {
    justify-content: flex-start;
    padding-bottom: 48px;
  }

  .hero__content {
    margin-left: 0;
    padding: 0 20px 40px;
    text-align: left;
  }

  /* セクション余白 */
  .section {
    padding: 48px 0;
  }

  .section__heading {
    font-size: 1.5rem;
  }

  /* 段落間を広げて読みやすく */
  .about-message__text,
  .about-intro p,
  .intro-block__text,
  .practice-vertical__text,
  .point-card__text,
  .class-desc__text {
    margin-bottom: 24px;
  }

  /* 3ポイント */
  .points {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* 指導員 */
  .instructor {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .instructor__photo {
    max-width: 180px;
    margin: 0 auto;
  }

  /* 活動拠点 */
  .location-row {
    flex-direction: column;
    gap: 4px;
  }

  .location-row__name {
    min-width: auto;
  }

  /* ページヘッダー */
  .page-header {
    padding: 28px 0 24px;
  }

  .page-header__title {
    font-size: 1.1rem;
  }

  /* 練習内容 */
  .practice-list {
    grid-template-columns: 1fr;
  }

  /* 体験レッスンの流れ: 縦1列 */
  .timeline {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* クラス説明 */
  .class-desc {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  /* スケジュール表: カード形式 */
  .schedule-table {
    display: block;
  }

  .schedule-table thead {
    display: none;
  }

  .schedule-table tbody {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .schedule-table tr {
    display: block;
    background: #fff;
    border: 1px solid #E0E0E0;
    border-radius: 4px;
    padding: 16px;
  }

  .schedule-table th,
  .schedule-table td {
    display: block;
    text-align: left;
    padding: 0;
    border: none;
  }

  .schedule-table th {
    font-size: 0.85rem;
    color: #C86400;
    margin-bottom: 8px;
  }

  .schedule-table td {
    font-size: 0.85rem;
    line-height: 1.8;
  }

  .schedule-table td + td {
    margin-top: 4px;
    color: #777;
    font-size: 0.8rem;
  }

  /* 写真ストリップ: SPではカルーセル（左右見切れ） */
  .photo-strip {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 12px;
    padding: 0 24px;
    scrollbar-width: none;
  }

  .photo-strip::-webkit-scrollbar {
    display: none;
  }

  .photo-strip img {
    flex: 0 0 85%;
    scroll-snap-align: center;
    border-radius: 4px;
  }

  /* カルーセルドット */
  .photo-strip-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
  }

  .photo-strip-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #D9D9D9;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }

  .photo-strip-dot.is-active {
    background-color: #C86400;
  }

  /* アクセスカード */
  .access-card__detail {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* コラムグリッド（一覧ページは1列、TOPは2列維持） */
  .column-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .top-column-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }


  /* CTA縮小 */
  .cta-section {
    padding: 36px 0;
  }

  /* フッター */
  .footer {
    padding: 32px 0 20px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer__nav {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ----------------------------------------
   レスポンシブ（スマホ: 480px以下）
   ---------------------------------------- */
@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }

  .hero__catch {
    font-size: 1.6rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.85rem;
  }
}

/* ----------------------------------------
   フェードインアニメーション
   IntersectionObserver で .is-visible を付与
   ---------------------------------------- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}