/* --------------------------------
 * 基本設定 & 共通スタイル
 * -------------------------------- */
:root {
    --primary-color: #debd78;
    --primary-color-dark: #c9ab6a;
    --secondary-color: #002f39;
    --secondary-color-light: #005e72;
    --text-color-dark: #2a2a2a;
    --text-color-light: #f7f5f5;
    --background-color-light: #f7f5f5;
    --font-family-main: 'Quicksand', 'Mitr', sans-serif;
    --font-family-sub: 'Mitr', 'Quicksand', sans-serif;
    --transition-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base font size for desktop */
}

body {
    font-family: var(--font-family-main);
    color: var(--text-color-dark);
    background-color: #fff;
    line-height: 1.8;
    overflow-x: hidden;
    font-size: 1rem; /* 1rem = 16px on desktop */
}
 
body.no-scroll {
    overflow: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
 
section {
    padding: 100px 0;
    overflow: hidden;
}

.section-title {
    text-align: center;
    margin-bottom: 20px;
    font-size: clamp(2rem, 1.5vw + 1.5rem, 2.5rem);
    line-height: 1.3;
    font-weight: 700;
    font-family: var(--font-family-sub);
    color: var(--secondary-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 10px auto 0;
}
 
.section-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
    color: #555;
}
 
.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.4s var(--transition-smooth);
    border: 2px solid transparent;
    border-radius: 4px;
}

.btn:hover {
    background-color: var(--primary-color-dark);
    color: var(--secondary-color);
    transform: translateY(-2px);
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--transition-smooth), transform 0.8s var(--transition-smooth);
    will-change: opacity, transform;
}

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

/* --- Logo Area --- */
.top-left-logo {
    position: absolute;
    top: 30px;
    left: 20px;
    z-index: 1001;
    transition: all 0.3s var(--transition-smooth);
}

body.scrolled .top-left-logo {
    position: fixed;
    top: 22px;
}
 
.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    font-family: var(--font-family-sub);
    color: var(--text-color-light);
    transition: color 0.3s var(--transition-smooth);
    line-height: 1;
}

body.scrolled .logo-text {
    color: #debd78;
}

.logo-image {
    height: 200px;
    border-bottom-right-radius: 5px;
    border-bottom-left-radius: 5px;
    object-fit: cover;
    transition: height 0.3s var(--transition-smooth); /* Add transition for smooth resizing */
}

/* --------------------------------
 * ヘッダー & ナビゲーション
 * -------------------------------- */
.header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: all 0.3s var(--transition-smooth);
}

.header.scrolled {
    position: fixed;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.98), rgba(247, 245, 245, 0.95));
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 15px 0;
    animation: slideDown 0.5s var(--transition-smooth);
}
 
@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

.navbar {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    color: var(--text-color-light);
}
 
.header.scrolled .navbar {
    color: var(--secondary-color);
}
 
.nav-right-wrapper {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-item {
    margin-left: 30px;
}

.nav-link {
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s var(--transition-smooth);
}
 
.header.scrolled .nav-link {
    color: var(--secondary-color);
}
 
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s var(--transition-smooth);
}

.nav-link:hover, .language-switcher:hover .nav-link {
    color: var(--primary-color);
}
 
.header.scrolled .nav-link:hover, 
.header.scrolled .language-switcher:hover .nav-link {
    color: var(--primary-color);
}
 
.nav-link:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}
 
.language-switcher {
    position: relative;
}
.language-switcher .language-list {
    display: none;
    opacity: 0;
    visibility: hidden;
    position: absolute;
    top: 100%;
    right: 0;
    transform: translateY(10px);
    background-color: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    padding: 10px;
    border-radius: 5px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    min-width: 140px;
    margin-top: 10px;
    transition: opacity 0.3s var(--transition-smooth), visibility 0.3s var(--transition-smooth), transform 0.3s var(--transition-smooth);
}
.language-switcher.active .language-list {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.language-list a {
    display: block;
    padding: 8px 12px;
    color: var(--text-color-dark);
    transition: background-color 0.2s var(--transition-smooth);
    border-radius: 3px;
}
.language-list a:hover {
    background-color: #f0f0f0;
}

/* Language Switcher with Flags */
.language-switcher .nav-link {
    padding: 0;
    display: flex;
    align-items: center;
}

.language-switcher .nav-link::after {
    display: none; /* No underline on flag */
}

#current-lang-flag {
    width: 32px;
    height: auto;
    border-radius: 4px;
    border: 1px solid rgba(255,255,255,0.4);
    transition: border-color 0.3s var(--transition-smooth);
}
 
.header.scrolled #current-lang-flag {
    border-color: rgba(0,0,0,0.2);
}

.language-list .lang-select {
    display: flex;
    align-items: center;
    font-size: 0.9rem;
}

.language-list .lang-select img {
    width: 24px;
    height: auto;
    margin-right: 10px;
    border-radius: 3px;
}

.hamburger {
    display: none;
    cursor: pointer;
    z-index: 1002;
    padding: 10px;
    margin: -10px;
    position: relative;
}
.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-color-light);
}
.header.scrolled .hamburger .bar {
    background-color: var(--secondary-color);
}

.hamburger.active .bar {
    background-color: var(--primary-color);
}
.hamburger.active .bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.active .bar:nth-child(2) { opacity: 0; }
.hamburger.active .bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
 
.mobile-nav { display: none; }

/* --- SP/Tablet用 固定フッターボタン --- */
.fixed-footer-buttons {
    display: none;
    position: fixed;
    bottom: -100px;
    left: 0;
    width: 100%;
    background-color: var(--text-color-light);
    box-shadow: 0 -5px 15px rgba(0,0,0,0.1);
    z-index: 200;
    transition: bottom 0.4s ease-in-out;
}
.fixed-footer-buttons.visible {
    bottom: 0;
}
.fixed-buttons-container {
    display: flex;
}
.fixed-btn {
    flex: 1;
    text-align: center;
    padding: 15px 10px;
    font-weight: 700;
    font-size: 1rem;
    transition: background-color 0.3s var(--transition-smooth), color 0.3s var(--transition-smooth);
}
.fixed-btn.reservation {
    background-color: var(--primary-color);
    color: var(--secondary-color);
}
.fixed-btn.reservation:hover {
    background-color: var(--primary-color-dark);
}
.fixed-btn.contact {
    background-color: var(--secondary-color);
    color: var(--text-color-light);
}
.fixed-btn.contact:hover {
    background-color: var(--secondary-color-light);
}

/* --- レスポンシブ対応 --- */
@media (max-width: 992px) {
    html {
        font-size: 15px; /* Scale down all rem units */
    }
    .nav-menu {
        display: none;
    }
    .hamburger {
        display: block;
    }
    
    .header-actions .header-reservation-btn {
        display: none;
    }

    .header-actions .language-switcher .nav-link span {
        display: none;
    }
    
    /* ===== MOBILE NAVIGATION MENU STYLES ===== */
    .mobile-nav {
        display: flex;
        justify-content: center;
        align-items: center;
        position: fixed;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 47, 57, 0.8);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
        transition: left 0.4s ease-in-out;
        z-index: 1000;
        padding-top: 140px;
    }

    .mobile-nav.active {
        left: 0;
    }

    .mobile-nav-container {
        display: flex;
        width: 100%;
        max-width: 600px;
        gap: 20px;
        padding: 0 20px;
    }

    .mobile-nav-column {
        flex: 1;
        text-align: left;
    }

    .mobile-nav-column ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .mobile-nav-column li {
        margin-bottom: 20px;
    }

    .mobile-nav-column .nav-link {
        font-size: 1.1rem;
        color: var(--text-color-light);
        font-weight: 500;
        padding: 5px 0;
    }

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

    .mobile-nav-column .btn {
        width: 100%;
        text-align: center;
        padding: 12px;
        font-size: 1rem;
        margin-top: 0;
    }

    .mobile-nav-sns {
        margin-top: 20px;
        font-size: 1.8rem;
    }

    .mobile-nav-sns a {
        margin-right: 20px;
        color: var(--text-color-light);
    }

    .mobile-nav-sns a:hover {
        color: var(--primary-color);
    }
    /* ======================================= */
    .about-text { order: 1; text-align: center;}
    .footer-col { text-align: center; }
    .contact-info li { justify-content: center; }
}

@media (max-width: 768px) {
    html {
        font-size: 14px; /* Further scale down all rem units */
    }
    body {
        line-height: 1.7; /* Adjust line height for better readability on small screens */
    }
    section { padding: 80px 0; }
    .slick-arrow { display: none !important; }
    .fixed-footer-buttons { display: block; }
    
    /* ===== LOGO SIZE CHANGE FOR MOBILE ===== */
    .logo-image {
        height: 120px;
    }
    .top-left-logo {
        left: 15px;
    }
    /* ======================================= */

    .booking-search-box {
        grid-template-columns: 1fr 1fr;
    }
    .booking-search-box .booking-input-group, .booking-search-box button {
        grid-column: span 1;
    }
     .booking-search-box button {
        grid-column: 1 / -1;
    }
}
 
@media (max-width: 480px) {
     .booking-search-box {
        grid-template-columns: 1fr;
    }
     .mobile-nav-container {
        flex-direction: column;
        gap: 0;
    }
    .mobile-nav-column {
        text-align: center;
    }
    .mobile-nav-column .btn {
        width: 60%;
    }
}
/* --- フッター --- */
        .footer {
            background-color: var(--secondary-color);
            color: var(--text-color-light);
            padding: 80px 0 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 60px;
        }
        .footer-col h4 {
            color: var(--text-color-light);
            font-size: 1.2rem;
            font-family: var(--font-family-sub);
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
            display: inline-block;
            letter-spacing: 1px;
        }
        .footer-grid .footer-col:first-child {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .footer-logo {
            margin-bottom: 20px;
        }
        
        .logo-text-footer {
            font-size: 1.8rem;
            font-weight: 700;
            font-family: var(--font-family-sub);
            color: var(--text-color-light);
            margin-bottom: 0;
        }
        
        .footer-col .btn {
            margin-bottom: 20px;
        }
        .social-icons a {
            color: var(--text-color-light);
            font-size: 1.5rem;
            margin-right: 15px;
            transition: color 0.3s var(--transition-smooth);
        }
        .social-icons a:hover {
            color: var(--primary-color);
        }
        .sitemap-list li {
            margin-bottom: 10px;
        }
        .sitemap-list a {
            transition: color 0.3s var(--transition-smooth), padding-left 0.3s var(--transition-smooth);
        }
        .sitemap-list a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        .contact-info li {
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
        }
        .contact-info i {
            margin-right: 10px;
            margin-top: 5px;
            color: var(--primary-color);
        }
        .contact-info a {
            transition: color 0.3s var(--transition-smooth);
        }
        .contact-info a:hover {
            color: var(--primary-color);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(247, 245, 245, 0.2);
            font-size: 0.9rem;
        }