/* ==========================================================================
   一棟貸し民泊「コトリコ」スタイルシート
   Design Concept: 昭和レトロ × 温かみのある町家モダン
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS 変数・カラーパレット
   -------------------------------------------------------------------------- */
:root {
    /* 背景色（和紙調・生成り・飴色） */
    --bg-base: #FAF6EE;
    --bg-warm: #F4ECE0;
    --bg-card: #FFFFFF;
    --bg-subtle: #ECE4D3;
    --bg-dark: #241A15;

    /* テキストカラー（墨茶・焦茶） */
    --text-primary: #2B1E17;
    --text-secondary: #5C4B3E;
    --text-muted: #847264;
    --text-inverse: #FAF6EE;

    /* アクセント・テーマカラー（昭和レトロ調） */
    --color-akane: #A8332A;      /* 茜色・弁柄色 */
    --color-akane-hover: #BF3B30;
    --color-matcha: #556638;     /* 抹茶・鶯色 */
    --color-gold: #C29648;       /* 真鍮・金茶色 */
    --color-wood: #6D4C3D;       /* 木味ブラウン */
    --color-border: #DFD3C3;

    /* Airbnbブランドカラー */
    --color-airbnb: #FF385C;
    --color-airbnb-hover: #E00B41;
    --color-airbnb-dark: #D70466;

    /* フォント設定 */
    --font-heading: 'Shippori Mincho', 'Zen Old Mincho', serif;
    --font-subhead: 'Zen Old Mincho', serif;
    --font-body: 'Zen Kaku Gothic New', 'Hiragino Sans', 'Meiryo', sans-serif;

    /* シャドウ & トランジション */
    --shadow-soft: 0 4px 20px rgba(58, 38, 26, 0.08);
    --shadow-card: 0 8px 30px rgba(58, 38, 26, 0.12);
    --shadow-hover: 0 12px 35px rgba(58, 38, 26, 0.18);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.85;
    letter-spacing: 0.04em;
    overflow-x: hidden;
    position: relative;
    /* レトロな微細和紙テクスチャグラデーション */
    background-image: 
        radial-gradient(circle at 100% 0%, rgba(194, 150, 72, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 0% 100%, rgba(168, 51, 42, 0.04) 0%, transparent 40%);
}

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

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

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

.container {
    width: 92%;
    max-width: 1180px;
    margin: 0 auto;
}

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

/* --------------------------------------------------------------------------
   共通見出し・レトロ装飾
   -------------------------------------------------------------------------- */
.section {
    padding: 90px 0;
    position: relative;
}

.section-title-wrap {
    margin-bottom: 50px;
}

.retro-sub-en {
    display: block;
    font-family: 'Times New Roman', 'Shippori Mincho', serif;
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 8px;
}

.retro-title {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 700;
    line-height: 1.45;
    color: var(--text-primary);
    letter-spacing: 0.08em;
}

.retro-separator {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 18px auto 20px;
    gap: 15px;
    color: var(--color-gold);
}

.retro-separator::before,
.retro-separator::after {
    content: '';
    display: block;
    width: 60px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-gold), transparent);
}

.retro-separator.left {
    justify-content: flex-start;
}

.retro-separator.left::before {
    display: none;
}

.retro-lead {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   Airbnb ボタン（全般共通）
   -------------------------------------------------------------------------- */
.btn-airbnb {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: linear-gradient(135deg, #FF385C 0%, #E00B41 100%);
    color: #FFFFFF !important;
    font-weight: 700;
    border-radius: 40px;
    padding: 12px 26px;
    box-shadow: 0 4px 18px rgba(255, 56, 92, 0.35);
    transition: var(--transition);
    letter-spacing: 0.05em;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-airbnb:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 22px rgba(255, 56, 92, 0.45);
    background: linear-gradient(135deg, #FF4A6D 0%, #F0174D 100%);
}

.airbnb-icon {
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   ヘッダー / ナビゲーション
   -------------------------------------------------------------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(250, 246, 238, 0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-bird {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.logo-bird-img {
    height: 38px;
    width: auto;
    object-fit: contain;
    display: block;
    transition: transform 0.3s ease;
}

.brand-logo:hover .logo-bird-img {
    transform: rotate(-6deg) scale(1.08);
}

.logo-text-group {
    display: flex;
    flex-direction: column;
}

.logo-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.logo-main {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.logo-en {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--color-gold);
    margin-left: 4px;
}

.desktop-nav .nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.desktop-nav .nav-menu a {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    position: relative;
    padding: 6px 0;
}

.desktop-nav .nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-akane);
    transition: width 0.3s ease;
}

.desktop-nav .nav-menu a:hover {
    color: var(--color-akane);
}

.desktop-nav .nav-menu a:hover::after {
    width: 100%;
}

.header-cta-wrap {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-airbnb-btn {
    padding: 9px 20px;
    font-size: 0.88rem;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    z-index: 1001;
}

.mobile-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* モバイルドロワー */
.mobile-drawer {
    display: none;
    position: fixed;
    top: 69px;
    left: 0;
    width: 100%;
    background-color: var(--bg-base);
    border-bottom: 2px solid var(--color-gold);
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    z-index: 999;
}

.mobile-drawer.open {
    display: block;
}

.mobile-menu-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.drawer-link {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    padding: 8px 0;
    border-bottom: 1px dashed var(--color-border);
}

.drawer-cta .full-width {
    width: 100%;
    padding: 14px;
}

/* --------------------------------------------------------------------------
   ヒーローセクション（ファーストビュー）
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    min-height: 94vh;
    padding-top: 100px;
    padding-bottom: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
    filter: brightness(0.85) saturate(1.05);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(36, 26, 21, 0.75) 0%,
        rgba(36, 26, 21, 0.45) 50%,
        rgba(36, 26, 21, 0.8) 100%
    );
}

.hero-grain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15;
    background-image: radial-gradient(#FFF 1px, transparent 1px);
    background-size: 4px 4px;
}

.hero-container {
    position: relative;
    z-index: 2;
    width: 92%;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-inner {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 50px;
    align-items: center;
}

/* 縦書きキャッチコピー */
.hero-vertical-catch {
    display: flex;
    flex-direction: row-reverse;
    align-items: flex-start;
    gap: 18px;
    padding: 30px 24px;
    background: rgba(36, 26, 21, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(194, 150, 72, 0.4);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.catch-badge {
    writing-mode: vertical-rl;
    font-size: 0.82rem;
    letter-spacing: 0.2em;
    background-color: var(--color-akane);
    color: #FFF;
    padding: 12px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.vertical-title {
    writing-mode: vertical-rl;
    font-family: var(--font-heading);
    color: #FFFFFF;
    letter-spacing: 0.35em;
    line-height: 2.1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8);
}

.vertical-title .v-line {
    display: inline-block;
    font-size: 1.85rem;
    font-weight: 700;
}

.vertical-title .line-1 {
    color: #FFF6E6;
}

.vertical-title .line-2 {
    color: #E2D1BD;
    font-size: 1.6rem;
}

/* ヒーローカード（情報・実利・CTA） */
.hero-card {
    background: rgba(254, 252, 247, 0.96);
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-akane);
    padding: 36px 40px;
    border-radius: 12px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    max-width: 580px;
    margin-left: auto;
}

.inn-tag {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.tag-point {
    background-color: var(--color-akane);
    color: #FFF;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.tag-area {
    color: var(--color-gold);
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.inn-name h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 8px;
}

.inn-name .en-name {
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--color-wood);
    margin-left: 8px;
}

.inn-sub {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* 3大実利バッジ */
.hero-merits-badge {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    background-color: var(--bg-warm);
    border: 1px dashed var(--color-gold);
    border-radius: 8px;
    padding: 16px 12px;
    margin-bottom: 28px;
}

.merit-chip {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
}

.merit-chip:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 15%;
    height: 70%;
    width: 1px;
    background-color: var(--color-border);
}

.merit-chip.highlight .chip-val {
    color: var(--color-akane);
}

.chip-icon {
    font-size: 1.4rem;
    margin-bottom: 4px;
}

.chip-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.chip-val {
    display: block;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

/* ヒーローCTAボタン */
.hero-btn-airbnb {
    width: 100%;
    padding: 16px 20px;
    font-size: 1.05rem;
    justify-content: space-between;
}

.btn-main-txt {
    flex-grow: 1;
    text-align: center;
}

.arrow-ico {
    font-size: 1.2rem;
    transition: transform 0.2s ease;
}

.hero-btn-airbnb:hover .arrow-ico {
    transform: translateX(4px);
}

.cta-note {
    font-size: 0.76rem;
    color: var(--text-muted);
    text-align: center;
    margin-top: 10px;
}

/* スクロール案内 */
.scroll-prompt {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.72rem;
    letter-spacing: 0.15em;
}

.scroll-stick {
    width: 1px;
    height: 28px;
    background-color: rgba(255, 255, 255, 0.4);
    position: relative;
    overflow: hidden;
}

.scroll-stick::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #FFF;
    animation: scrollAnim 1.8s infinite;
}

@keyframes scrollAnim {
    0% { transform: translateY(-100%); }
    50% { transform: translateY(0); }
    100% { transform: translateY(100%); }
}

/* --------------------------------------------------------------------------
   3つの魅力・実利セクション
   -------------------------------------------------------------------------- */
.section-features {
    background-color: #F8F3E9;
    border-bottom: 1px solid var(--color-border);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 50px;
}

.feature-card {
    background-color: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 30px 24px 24px;
    position: relative;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
    border-color: var(--color-gold);
}

.feature-card.highlight-card {
    border: 2px solid var(--color-gold);
    background: linear-gradient(180deg, #FFFFFF 0%, #FDFBF7 100%);
}

.feature-badge {
    position: absolute;
    top: -14px;
    left: 24px;
    background-color: var(--color-wood);
    color: #FFF;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 4px 14px;
    border-radius: 20px;
}

.feature-badge.special {
    background-color: var(--color-akane);
}

.feature-icon-box {
    margin: 4px 0 10px;
}

.feature-emoji {
    font-size: 2.2rem;
    display: inline-block;
}

.feature-heading {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 12px;
}

.feature-card-img-wrap {
    height: 170px;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 16px;
    border: 1px solid var(--color-border);
}

.feature-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.feature-card:hover .feature-thumb {
    transform: scale(1.05);
}

.feature-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 16px;
    flex-grow: 1;
}

.feature-points {
    border-top: 1px dashed var(--color-border);
    padding-top: 14px;
}

.feature-points li {
    font-size: 0.84rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 6px;
    position: relative;
    padding-left: 18px;
}

.feature-points li::before {
    content: '✔';
    position: absolute;
    left: 0;
    color: var(--color-akane);
    font-size: 0.85rem;
}

/* バナー風CTA */
.feature-cta-banner {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #3B2A22 100%);
    border: 1px solid var(--color-gold);
    border-radius: 12px;
    padding: 30px 40px;
    color: #FFF;
    box-shadow: var(--shadow-card);
}

.banner-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.banner-texts h4 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: #FFF3D6;
    margin-bottom: 6px;
}

.banner-texts p {
    font-size: 0.9rem;
    color: #E0D3C5;
}

/* --------------------------------------------------------------------------
   コンセプト & ストーリー
   -------------------------------------------------------------------------- */
.section-concept {
    background-color: var(--bg-base);
    overflow: hidden;
}

.concept-layout {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
}

.concept-visual {
    position: relative;
}

.frame-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 6px solid #FFF;
}

.frame-image.main-visual {
    width: 85%;
    position: relative;
    z-index: 1;
}

.frame-image.sub-visual {
    width: 65%;
    position: absolute;
    bottom: -30px;
    right: 0;
    z-index: 2;
    border-color: var(--bg-warm);
}

.concept-text {
    font-size: 0.98rem;
    color: var(--text-secondary);
    line-height: 1.95;
    margin-bottom: 30px;
}

.concept-text p {
    margin-bottom: 16px;
}

.concept-features-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.c-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: #FFF;
    border: 1px solid var(--color-border);
    padding: 16px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-soft);
}

.c-num {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-akane);
    background: var(--bg-warm);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

.c-info strong {
    display: block;
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.c-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   お部屋・設備案内
   -------------------------------------------------------------------------- */
.section-rooms {
    background-color: var(--bg-warm);
}

/* 間取り図バナー */
.floorplan-banner {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    background: #FFF;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    margin-bottom: 50px;
    align-items: center;
}

.floorplan-img-wrap {
    background-color: #FAFAFA;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--color-border);
    overflow: hidden;
}

.floorplan-img-wrap img {
    width: 100%;
    max-height: 380px;
    object-fit: contain;
    border-radius: 6px;
    transition: transform 0.4s ease;
}

.floorplan-banner:hover .floorplan-img-wrap img {
    transform: scale(1.02);
}

.floorplan-info {
    padding: 36px;
}

.fp-badge {
    display: inline-block;
    font-family: 'Times New Roman', serif;
    font-size: 0.75rem;
    color: var(--color-gold);
    letter-spacing: 0.2em;
    font-weight: 700;
    margin-bottom: 8px;
}

.floorplan-info h3 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.floorplan-info p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 18px;
}

.fp-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.fp-chips span {
    font-size: 0.78rem;
    background: var(--bg-warm);
    color: var(--text-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 600;
}

.rooms-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 50px;
}

.room-card {
    background: #FFF;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.room-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.room-card-image {
    position: relative;
    height: 230px;
    overflow: hidden;
}

.room-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.room-card:hover .room-card-image img {
    transform: scale(1.05);
}

.room-tag {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(36, 26, 21, 0.85);
    color: #FFF;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.05em;
}

.room-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.room-card-body h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.room-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 18px;
    flex-grow: 1;
}

.room-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    border-top: 1px solid var(--bg-warm);
    padding-top: 14px;
}

.room-specs span {
    font-size: 0.76rem;
    background-color: var(--bg-warm);
    color: var(--text-primary);
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

/* サブ施設（水回り・ランドリー） */
.wet-areas-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.wet-card {
    background: #FFF;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.wet-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.wet-img {
    height: 160px;
    overflow: hidden;
}

.wet-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.wet-card:hover .wet-img img {
    transform: scale(1.05);
}

.wet-body {
    padding: 16px;
}

.wet-body h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.wet-body p {
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* アメニティパネル */
.amenities-panel {
    background: #FFF;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow-card);
}

.amenities-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 30px;
    position: relative;
}

.amenities-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--color-akane);
    margin: 10px auto 0;
}

.amenities-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 18px;
}

.amenity-item {
    text-align: center;
    padding: 16px 8px;
    border-radius: 8px;
    background-color: var(--bg-base);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.amenity-item:hover {
    background-color: #FFF;
    border-color: var(--color-gold);
    box-shadow: var(--shadow-soft);
}

.amenity-icon {
    font-size: 1.8rem;
    display: block;
    margin-bottom: 8px;
}

.amenity-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.amenity-sub {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   フォトギャラリー
   -------------------------------------------------------------------------- */
.section-gallery {
    background-color: var(--bg-base);
}

.gallery-mosaic {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 240px;
    gap: 20px;
}

.gallery-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.gallery-card.wide {
    grid-column: span 2;
}

.gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-card:hover img {
    transform: scale(1.06);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 24px 16px 10px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.78), transparent);
    color: #FFF;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    opacity: 0.95;
}

/* --------------------------------------------------------------------------
   周辺観光・ガイド
   -------------------------------------------------------------------------- */
.section-guide {
    background-color: #F8F3E9;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.guide-card {
    background: #FFF;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 26px 16px;
    box-shadow: var(--shadow-soft);
    position: relative;
    border-top: 3px solid var(--color-matcha);
    display: flex;
    flex-direction: column;
}

.guide-time {
    display: inline-block;
    align-self: flex-start;
    background-color: var(--color-matcha);
    color: #FFF;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    margin-bottom: 14px;
    letter-spacing: 0.02em;
}

.guide-card h3 {
    font-family: var(--font-heading);
    font-size: 0.94rem;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 12px;
    white-space: nowrap;
    letter-spacing: -0.015em;
}

.guide-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.85;
    letter-spacing: 0.02em;
    margin: 0;
}

/* --------------------------------------------------------------------------
   施設概要 & アクセス
   -------------------------------------------------------------------------- */
.section-access {
    background-color: var(--bg-base);
}

.access-content-wrapper {
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 40px;
    align-items: start;
}

.info-table-box {
    background: #FFF;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

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

.retro-table th,
.retro-table td {
    padding: 16px 20px;
    font-size: 0.92rem;
    border-bottom: 1px solid var(--bg-warm);
    vertical-align: top;
}

.retro-table th {
    background-color: var(--bg-warm);
    font-family: var(--font-heading);
    color: var(--text-primary);
    width: 28%;
    font-weight: 600;
    text-align: left;
}

.retro-table td {
    color: var(--text-secondary);
    line-height: 1.65;
}

.retro-table tr:last-child th,
.retro-table tr:last-child td {
    border-bottom: none;
}

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

.sub-note {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.access-map-box {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.map-iframe-container {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: 4px solid #FFF;
}

.map-warning-card {
    background: #FFF8F6;
    border: 2px solid var(--color-akane);
    border-radius: 10px;
    padding: 22px 24px;
    box-shadow: 0 4px 18px rgba(168, 51, 42, 0.12);
    position: relative;
}

.warning-title-wrap {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
    border-bottom: 2px dashed rgba(168, 51, 42, 0.25);
    padding-bottom: 12px;
}

.warning-badge {
    background-color: var(--color-akane);
    color: #FFF;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 4px;
    white-space: nowrap;
    margin-top: 2px;
    flex-shrink: 0;
}

.warning-title {
    font-family: var(--font-heading);
    font-size: 1.02rem;
    color: var(--color-akane);
    font-weight: 700;
    line-height: 1.4;
    margin: 0;
}

.warning-title-sub {
    display: block;
    font-size: 0.88rem;
    color: #9E1F16;
    font-weight: 700;
    margin-top: 3px;
    letter-spacing: 0.02em;
}

.warning-content {
    font-size: 0.88rem;
    color: var(--text-primary);
    line-height: 1.75;
    margin-bottom: 16px;
    word-break: normal;
    overflow-wrap: break-word;
}

.warning-content p {
    margin-bottom: 8px;
}

.warning-size-text {
    line-height: 1.7;
}

.no-break {
    display: inline-block;
    white-space: nowrap;
}

.warning-danger {
    background-color: #FDE8E6;
    color: #9E1F16;
    font-weight: 600;
    padding: 10px 12px;
    border-radius: 6px;
    border-left: 4px solid var(--color-akane);
    margin: 12px 0 !important;
    line-height: 1.6;
}

.warning-danger .no-break {
    font-weight: 700;
}

.warning-note {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.amenity-caution {
    color: var(--color-akane);
    font-weight: 700;
    font-size: 0.72rem;
    display: inline-block;
    margin-top: 2px;
}

.btn-map-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-akane);
    border-bottom: 1px solid var(--color-akane);
    padding-bottom: 2px;
}

.btn-map-link:hover {
    color: var(--color-akane-hover);
    border-color: var(--color-akane-hover);
}

/* --------------------------------------------------------------------------
   よくあるご質問（FAQ）
   -------------------------------------------------------------------------- */
.section-faq {
    background-color: var(--bg-warm);
}

.faq-accordion {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: #FFF;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.faq-item[open] {
    border-color: var(--color-gold);
}

.faq-question {
    display: flex;
    align-items: center;
    padding: 18px 24px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    list-style: none;
    user-select: none;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.q-icon {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-akane);
    background: #FDF0ED;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 14px;
    flex-shrink: 0;
}

.q-txt {
    flex-grow: 1;
    color: var(--text-primary);
}

.toggle-icon {
    font-size: 1.4rem;
    color: var(--color-gold);
    font-weight: 400;
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.faq-item[open] .toggle-icon {
    transform: rotate(45deg);
}

.faq-answer {
    display: flex;
    align-items: flex-start;
    padding: 0 24px 22px 24px;
    border-top: 1px dashed var(--bg-warm);
    margin-top: 4px;
    padding-top: 16px;
}

.a-icon {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-matcha);
    background: #EFF4E7;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 14px;
    flex-shrink: 0;
}

.a-txt {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --------------------------------------------------------------------------
   宿泊予約CTAセクション
   -------------------------------------------------------------------------- */
.section-cta {
    position: relative;
    background: linear-gradient(135deg, #241A15 0%, #3D261C 100%);
    color: #FFF;
    padding: 110px 0;
    overflow: hidden;
}

.cta-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(194, 150, 72, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(168, 51, 42, 0.18) 0%, transparent 50%);
    pointer-events: none;
}

.cta-inner-box {
    position: relative;
    z-index: 2;
    max-width: 940px;
    margin: 0 auto;
    border: 1px solid rgba(194, 150, 72, 0.4);
    padding: 60px 40px;
    border-radius: 12px;
    background: rgba(36, 26, 21, 0.65);
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.cta-tag {
    display: inline-block;
    font-family: 'Times New Roman', serif;
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.cta-title {
    font-family: var(--font-heading);
    font-size: 1.95rem;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #FFF7EC;
    margin-bottom: 20px;
}

.cta-line {
    display: inline-block;
}

.cta-divider {
    width: 80px;
    height: 2px;
    background: var(--color-gold);
    margin: 0 auto 24px;
}

.cta-lead {
    font-size: 1.05rem;
    color: #E2D4C6;
    line-height: 1.85;
    margin-bottom: 28px;
}

.cta-merits-inline {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 36px;
}

.c-badge {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.85rem;
    padding: 6px 16px;
    border-radius: 20px;
    color: #FFE6D9;
}

.btn-airbnb-huge {
    padding: 20px 48px;
    font-size: 1.25rem;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(255, 56, 92, 0.5);
}

.btn-huge-arrow {
    font-size: 1.4rem;
    transition: transform 0.2s ease;
}

.btn-airbnb-huge:hover .btn-huge-arrow {
    transform: translateX(6px);
}

.airbnb-trust-badges {
    display: flex;
    justify-content: center;
    gap: 12px;
    font-size: 0.82rem;
    color: #BAA99C;
    margin-top: 24px;
}

/* --------------------------------------------------------------------------
   フッター
   -------------------------------------------------------------------------- */
.site-footer {
    background-color: var(--bg-dark);
    color: #B4A599;
    padding: 70px 0 30px;
    border-top: 2px solid var(--color-gold);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 40px;
    margin-bottom: 30px;
    gap: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: #FFF;
    margin-bottom: 12px;
}

.logo-bird-f {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.footer-bird-img {
    height: 34px;
    width: auto;
    object-fit: contain;
    display: block;
}

.footer-address {
    font-size: 0.88rem;
    line-height: 1.75;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links a {
    font-size: 0.88rem;
    color: #D3C4B8;
}

.footer-links a:hover {
    color: #FFF;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: #8C7C70;
}

.back-to-top {
    color: var(--color-gold);
    font-weight: 600;
}

.back-to-top:hover {
    color: #FFF;
}

/* --------------------------------------------------------------------------
   スマートフォン追従フローティング予約バー
   -------------------------------------------------------------------------- */
.floating-reservation-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(36, 26, 21, 0.95);
    backdrop-filter: blur(10px);
    border-top: 2px solid var(--color-gold);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    z-index: 990;
    padding: 10px 16px;
    transform: translateY(120%);
    transition: transform 0.35s ease;
}

.floating-reservation-bar.show {
    transform: translateY(0);
}

.floating-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.floating-info {
    display: flex;
    flex-direction: column;
}

.f-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: #FFF;
}

.f-merits {
    font-size: 0.76rem;
    color: #E2D1BD;
}

.floating-btn {
    padding: 10px 22px;
    font-size: 0.9rem;
    white-space: nowrap;
}

/* --------------------------------------------------------------------------
   レスポンシブ対応（Media Queries）
   -------------------------------------------------------------------------- */
@media screen and (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .hero-vertical-catch {
        flex-direction: row;
        writing-mode: horizontal-tb;
        align-items: center;
    }

    .catch-badge {
        writing-mode: horizontal-tb;
        padding: 4px 10px;
    }

    .vertical-title {
        writing-mode: horizontal-tb;
        line-height: 1.4;
    }

    .vertical-title .v-line {
        display: block;
    }

    .hero-card {
        margin: 0 auto;
        max-width: 100%;
    }

    .features-grid,
    .rooms-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .floorplan-banner {
        grid-template-columns: 1fr;
    }

    .floorplan-img-wrap {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }

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

    .amenities-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .concept-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .frame-image.sub-visual {
        position: relative;
        bottom: 0;
        width: 100%;
        margin-top: 16px;
    }

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

    .access-content-wrapper {
        grid-template-columns: 1fr;
    }

    .banner-content {
        flex-direction: column;
        text-align: center;
    }
}

@media screen and (max-width: 768px) {
    .desktop-nav,
    .header-airbnb-btn {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .section {
        padding: 60px 0;
    }

    .retro-title {
        font-size: 1.65rem;
    }

    .hero-section {
        padding-top: 85px;
        min-height: auto;
    }

    .hero-vertical-catch {
        display: none;
    }

    .hero-card {
        padding: 24px 20px;
    }

    .inn-name h2 {
        font-size: 1.8rem;
    }

    .hero-merits-badge {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .merit-chip:not(:last-child)::after {
        display: none;
    }

    .merit-chip {
        flex-direction: row;
        justify-content: flex-start;
        text-align: left;
        gap: 12px;
        padding: 6px 12px;
        background: #FFF;
        border-radius: 6px;
    }

    .wet-areas-grid {
        grid-template-columns: 1fr;
    }

    .gallery-mosaic {
        grid-template-columns: 1fr;
        grid-auto-rows: 200px;
    }

    .gallery-card.wide {
        grid-column: span 1;
    }

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

    .guide-grid {
        grid-template-columns: 1fr;
    }

    .cta-inner-box {
        padding: 36px 20px;
    }

    .cta-title {
        font-size: clamp(1.25rem, 4.2vw, 1.55rem);
        line-height: 1.45;
    }

    .btn-airbnb-huge {
        padding: 16px 28px;
        font-size: 1.05rem;
        width: 100%;
    }

    .footer-top {
        flex-direction: column;
    }

    .footer-links {
        flex-direction: column;
        gap: 12px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 14px;
        text-align: center;
    }
}