/* ==========================================================================
   割烹 大川 - 共通スタイルシート (style.css)
   ========================================================================== */

/* Google Fonts から和風の書体をインポート */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;700&family=Sansita+Swashed&display=swap');

/* --- デザインシステム変数 --- */
:root {
  --bg-color-main: #fcfaf2;      /* 温かみのある和紙風の薄いベージュ */
  --bg-color-sub: #f3edd8;       /* 落ち着いたトーンのセカンド背景 */
  --text-color-main: #2c2520;    /* 墨のような焦げ茶色 */
  --text-color-sub: #665b53;     /* 落ち着いた薄めの茶色 */
  --color-primary: #1d3557;      /* 深い藍色（信頼感・和風の締め） */
  --color-accent: #c94a29;       /* 朱色・柿色（アクセント、完全予約制などの強調） */
  --color-border: #dcd0b4;       /* 障子の桟のようなソフトな境界線 */
  --font-family-serif: 'Noto Serif JP', 'Georgia', serif;
  --font-family-sans: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
  --max-width: 1100px;
  --transition-speed: 0.3s;
}

/* --- リセット & 基本設定 --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family-serif);
  background-color: var(--bg-color-main);
  color: var(--text-color-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-speed);
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

ul {
  list-style: none;
}

/* --- ユーティリティクラス --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.text-center {
  text-align: center;
}

.text-accent {
  color: var(--color-accent);
}

.font-sans {
  font-family: var(--font-family-sans);
}

.section-padding {
  padding: 80px 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 50px 0;
  }
}

.btn {
  display: inline-block;
  background-color: var(--color-accent);
  color: #ffffff;
  padding: 12px 30px;
  border-radius: 4px;
  font-weight: bold;
  transition: background-color var(--transition-speed), transform var(--transition-speed);
  box-shadow: 0 4px 6px rgba(201, 74, 41, 0.2);
}

.btn:hover {
  background-color: #aa3d20;
  transform: translateY(-2px);
  color: #ffffff;
}

.badge-reservation {
  display: inline-block;
  background-color: var(--color-accent);
  color: #ffffff;
  font-family: var(--font-family-sans);
  font-size: 0.8rem;
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: bold;
  vertical-align: middle;
  margin-left: 8px;
}

/* --- ヘッダー・ナビゲーション --- */
header {
  background-color: rgba(252, 250, 242, 0.95);
  border-bottom: 2px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo a {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--color-primary);
  letter-spacing: 0.1em;
}

.logo-sub {
  font-size: 0.75rem;
  font-family: var(--font-family-sans);
  color: var(--text-color-sub);
  letter-spacing: 0.05em;
  margin-top: -4px;
}

/* デスクトップ用ナビゲーション */
.nav-menu {
  display: flex;
  gap: 30px;
}

.nav-link {
  font-size: 1.1rem;
  font-weight: 700;
  position: relative;
  padding: 5px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-speed) ease-in-out;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active {
  color: var(--color-accent);
}

.nav-link.active::after {
  background-color: var(--color-accent);
  transform: scaleX(1);
}

/* ハンバーガーメニューボタン */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: 102;
  justify-content: center;
  align-items: center;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  position: absolute;
  transition: transform var(--transition-speed) ease, background-color var(--transition-speed) ease;
}

.hamburger-line::before,
.hamburger-line::after {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  position: absolute;
  transition: transform var(--transition-speed) ease, top var(--transition-speed) ease, bottom var(--transition-speed) ease;
}

.hamburger-line::before {
  top: -8px;
}

.hamburger-line::after {
  bottom: -8px;
}

/* ハンバーガーメニュー開いた状態の変形 */
.hamburger.is-active .hamburger-line {
  background-color: transparent;
}

.hamburger.is-active .hamburger-line::before {
  top: 0;
  transform: rotate(45deg);
}

.hamburger.is-active .hamburger-line::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* モバイル用ナビゲーションオーバーレイ */
.nav-overlay {
  display: none;
}

/* --- フッター --- */
footer {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 60px 0 20px 0;
  border-top: 4px solid var(--color-accent);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.footer-logo .logo-main {
  color: #ffffff;
}

.footer-logo .logo-sub {
  color: #b0c4de;
}

.footer-info p {
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.footer-links h3,
.footer-sns h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding-bottom: 10px;
}

.footer-links ul li {
  margin-bottom: 10px;
}

.footer-links ul li a:hover {
  color: #f3edd8;
  text-decoration: underline;
}

.footer-sns-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: rgba(255,255,255,0.1);
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: bold;
  font-family: var(--font-family-sans);
  transition: background-color var(--transition-speed);
}

.footer-sns-link:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}

.copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem;
  color: #b0c4de;
  font-family: var(--font-family-sans);
}

/* --- ページ共通装飾 --- */
.section-title {
  font-size: 2.2rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: var(--color-primary);
  position: relative;
  padding-bottom: 15px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-accent);
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
  }
}

/* ==========================================================================
   個別ページスタイル
   ========================================================================== */

/* --- トップページ (index.html) --- */
.hero {
  position: relative;
  height: 500px;
  background-color: #333;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.7) 100%);
  z-index: 1;
}

.hero-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  opacity: 0.75;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 20px;
}

.hero-tagline {
  font-size: 1.4rem;
  letter-spacing: 0.2em;
  margin-bottom: 15px;
  font-weight: normal;
}

.hero-title {
  font-size: 3.8rem;
  letter-spacing: 0.15em;
  font-weight: bold;
  margin-bottom: 25px;
  text-shadow: 2px 2px 10px rgba(0,0,0,0.6);
}

@media (max-width: 768px) {
  .hero {
    height: 400px;
  }
  .hero-tagline {
    font-size: 1.1rem;
  }
  .hero-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
  }
}

/* メッセージセクション */
.intro-text-box {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  padding: 50px 40px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
  max-width: 800px;
  margin: 0 auto;
}

.intro-lead {
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: bold;
  margin-bottom: 20px;
  line-height: 1.6;
}

.intro-desc {
  font-size: 1.1rem;
  color: var(--text-color-sub);
  margin-bottom: 25px;
}

@media (max-width: 768px) {
  .intro-text-box {
    padding: 30px 20px;
  }
  .intro-lead {
    font-size: 1.25rem;
  }
  .intro-desc {
    font-size: 1rem;
  }
}

/* フグ大々的打ち出しセクション */
.fugu-featured-section {
  background-color: var(--bg-color-sub);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.fugu-featured-card {
  display: flex;
  background-color: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
  border: 1px solid var(--color-border);
}

.fugu-featured-img {
  flex: 1.2;
  min-height: 380px;
  background-size: cover;
  background-position: center;
}

.fugu-featured-content {
  flex: 1;
  padding: 50px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.fugu-featured-badge {
  align-self: flex-start;
  background-color: var(--color-accent);
  color: #ffffff;
  padding: 4px 12px;
  font-weight: bold;
  font-size: 0.9rem;
  margin-bottom: 20px;
  letter-spacing: 0.1em;
  border-radius: 2px;
}

.fugu-featured-title {
  font-size: 2.2rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 20px;
  line-height: 1.4;
}

.fugu-featured-desc {
  font-size: 1.1rem;
  color: var(--text-color-main);
  margin-bottom: 30px;
  line-height: 1.8;
}

.fugu-featured-btn-wrap {
  margin-top: auto;
}

@media (max-width: 992px) {
  .fugu-featured-card {
    flex-direction: column;
  }
  .fugu-featured-img {
    min-height: 300px;
  }
  .fugu-featured-content {
    padding: 30px;
  }
  .fugu-featured-title {
    font-size: 1.8rem;
  }
}

/* フグ3点プレビューグリッド */
.fugu-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.fugu-preview-item {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 10px rgba(0,0,0,0.02);
  transition: transform var(--transition-speed);
}

.fugu-preview-item:hover {
  transform: translateY(-5px);
}

.fugu-preview-img-wrap {
  height: 200px;
  overflow: hidden;
  background-color: #eee;
}

.fugu-preview-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed);
}

.fugu-preview-item:hover .fugu-preview-img-wrap img {
  transform: scale(1.05);
}

.fugu-preview-info {
  padding: 20px;
  text-align: center;
}

.fugu-preview-name {
  font-size: 1.25rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.fugu-preview-text {
  font-size: 0.95rem;
  color: var(--text-color-sub);
}

@media (max-width: 768px) {
  .fugu-preview-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* ホームアクセス簡易セクション */
.home-info-section {
  background-color: #ffffff;
  border-top: 1px solid var(--color-border);
}

.home-info-columns {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: center;
}

.home-info-table {
  width: 100%;
  border-collapse: collapse;
}

.home-info-table th,
.home-info-table td {
  padding: 15px 10px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}

.home-info-table th {
  font-weight: bold;
  color: var(--color-primary);
  width: 30%;
  font-size: 1rem;
}

.home-info-table td {
  color: var(--text-color-main);
  font-family: var(--font-family-sans);
}

.home-info-map-wrap {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  height: 300px;
}

@media (max-width: 768px) {
  .home-info-columns {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .home-info-map-wrap {
    height: 250px;
  }
}

/* --- お品書きページ (menu.html) --- */
.page-header {
  background-color: var(--bg-color-sub);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  padding: 60px 0;
}

.page-header h1 {
  font-size: 2.6rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-color-sub);
}

@media (max-width: 768px) {
  .page-header {
    padding: 40px 0;
  }
  .page-header h1 {
    font-size: 2rem;
  }
}

.menu-section {
  padding: 60px 0;
}

.menu-section:nth-of-type(even) {
  background-color: #ffffff;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.menu-sub-title {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 30px;
  border-left: 4px solid var(--color-accent);
  padding-left: 15px;
}

/* フグ料理お品書きレイアウト（画像あり） */
.menu-fugu-list {
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.menu-fugu-item {
  display: flex;
  gap: 40px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.menu-fugu-item:nth-child(even) {
  flex-direction: row-reverse;
}

.menu-fugu-img {
  flex: 1;
  height: 300px;
  overflow: hidden;
}

.menu-fugu-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.menu-fugu-detail {
  flex: 1.2;
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.menu-fugu-name {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.menu-fugu-price {
  font-size: 1.3rem;
  color: var(--color-accent);
  font-family: var(--font-family-sans);
}

.menu-fugu-desc {
  font-size: 1rem;
  color: var(--text-color-sub);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .menu-fugu-item,
  .menu-fugu-item:nth-child(even) {
    flex-direction: column;
  }
  .menu-fugu-img {
    height: 220px;
  }
  .menu-fugu-detail {
    padding: 25px;
  }
  .menu-fugu-name {
    font-size: 1.4rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
  }
}

/* 通常メニューレイアウト（和風メニューリスト） */
.menu-classic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px 50px;
}

.menu-classic-item {
  border-bottom: 1px dashed var(--color-border);
  padding-bottom: 15px;
}

.menu-classic-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}

.menu-classic-name {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--color-primary);
}

.menu-classic-price {
  font-family: var(--font-family-sans);
  color: var(--color-accent);
  font-weight: bold;
}

.menu-classic-desc {
  font-size: 0.9rem;
  color: var(--text-color-sub);
}

@media (max-width: 768px) {
  .menu-classic-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* お酒セクション */
.drink-intro-box {
  background-color: var(--bg-color-sub);
  border: 1px solid var(--color-border);
  padding: 30px;
  border-radius: 6px;
  margin-bottom: 40px;
  text-align: center;
}

.drink-intro-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 10px;
}

/* --- 店舗情報・アクセス (info.html) --- */
.info-section {
  padding: 60px 0;
}

.info-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
}

@media (max-width: 992px) {
  .info-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ギャラリーセクション */
.gallery-container {
  margin-top: 50px;
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  padding: 40px;
  border-radius: 8px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.gallery-item {
  height: 200px;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--color-border);
  cursor: pointer;
  position: relative;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-speed) ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

@media (max-width: 768px) {
  .gallery-container {
    padding: 20px;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .gallery-item {
    height: 180px;
  }
}

/* モーダル表示 (ギャラリー拡大用) */
.modal {
  display: none;
  position: fixed;
  z-index: 200;
  padding-top: 100px;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.85);
}

.modal-content {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 800px;
  border-radius: 4px;
  border: 2px solid #fff;
  box-shadow: 0 5px 25px rgba(0,0,0,0.5);
  animation: zoomIn 0.3s;
}

@keyframes zoomIn {
  from {transform: scale(0.9); opacity: 0;}
  to {transform: scale(1); opacity: 1;}
}

.modal-close {
  position: absolute;
  top: 30px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  transition: color var(--transition-speed);
}

.modal-close:hover {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .modal-content {
    width: 95%;
  }
  .modal-close {
    top: 15px;
    right: 20px;
  }
}

/* モバイル用ナビゲーションオーバーレイ(メニュー展開時) */
@media (max-width: 768px) {
  .nav-menu {
    display: none; /* デスクトップ用メニューは非表示 */
  }

  .hamburger {
    display: flex; /* モバイルではハンバーガーを表示 */
  }

  .nav-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-color-main);
    z-index: 101;
    transform: translateX(100%);
    transition: transform var(--transition-speed) cubic-bezier(0.77, 0.2, 0.05, 1.0);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .nav-overlay.is-open {
    transform: translateX(0);
  }

  .nav-overlay-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
  }

  .nav-overlay-link {
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--color-primary);
  }

  .nav-overlay-link.active {
    color: var(--color-accent);
  }

  .nav-overlay-info {
    margin-top: 60px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-color-sub);
    line-height: 1.6;
  }

  .nav-overlay-sns {
    margin-top: 20px;
  }

  .nav-overlay-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    background: none;
    border: none;
    color: var(--color-primary);
    cursor: pointer;
    z-index: 103;
    line-height: 1;
    padding: 10px;
  }

  /* モバイル時のフグコース価格サイズ調整 */
  .fugu-course-price {
    font-size: clamp(1.1rem, 5vw, 1.4rem);
  }
  .fugu-course-card-price {
    font-size: clamp(1.3rem, 6vw, 1.8rem);
  }
}

/* フグコース関連スタイル（通常定義） */
.fugu-course-box {
  background-color: var(--bg-color-main);
  border: 1px solid var(--color-border);
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
  text-align: center;
}
.fugu-course-label {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 5px;
}
.fugu-course-price {
  font-size: 1.6rem;
  font-weight: bold;
  color: var(--color-accent);
  margin: 0;
  font-family: var(--font-family-sans);
  white-space: nowrap;
}

.fugu-course-card-wrap {
  background-color: #ffffff;
  border: 2px solid var(--color-accent);
  padding: 25px;
  border-radius: 8px;
  margin-bottom: 40px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(201, 74, 41, 0.05);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.fugu-course-card-title {
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 10px;
  letter-spacing: 0.05em;
}
.fugu-course-card-price {
  font-size: 2.2rem;
  font-weight: bold;
  color: var(--color-accent);
  margin: 0;
  font-family: var(--font-family-sans);
  white-space: nowrap;
}
.fugu-course-card-note {
  font-size: 0.9rem;
  color: var(--text-color-sub);
  margin-top: 10px;
  margin-bottom: 0;
}