/* =========================
   Theme & Variables (Japanese Style)
   ========================= */
:root {
    --bg-base: #11100e;        /* Dark brown/black */
    --bg-light: #1c1a17;       /* Slightly lighter brown */
    --text-primary: #e6e2d8;   /* Off white / paper color */
    --text-secondary: #a8a08f; /* Muted text */
    --accent-red: #8b2b2b;     /* Deep crimson / Urushi */
    --accent-gold: #c3ad7a;    /* Japanese Gold */
    --border-color: rgba(195, 173, 122, 0.2);
    
    --font-serif: 'Shippori Mincho', 'Noto Serif JP', serif;
}

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

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-serif);
    line-height: 1.9;
    letter-spacing: 0.05em;
    overflow-x: hidden;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: 0.3s ease;
}

ul {
    list-style: none;
}

/* =========================
   Header
   ========================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 0;
    transition: all 0.4s ease;
}

.header.scrolled {
    background-color: rgba(17, 16, 14, 0.95);
    padding: 1rem 0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-jp {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
}

.nav {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.nav ul {
    display: flex;
    gap: 2rem;
}

.nav ul li a {
    font-size: 0.95rem;
    position: relative;
    color: var(--text-secondary);
}

.nav ul li a:hover {
    color: var(--text-primary);
}

.nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1px;
    background-color: var(--accent-red);
    transition: 0.3s ease;
}

.nav ul li a:hover::after {
    width: 100%;
}

.btn-reserve {
    border: 1px solid var(--accent-red);
    background-color: var(--accent-red);
    color: #fff;
    padding: 0.6rem 2rem;
    font-size: 0.95rem;
    transition: 0.3s;
}

.btn-reserve:hover {
    background-color: transparent;
    color: var(--accent-red);
}

.hamburger {
    display: none;
}

/* =========================
   Hero Section (Vertical Text Layout)
   ========================= */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: radial-gradient(circle at center, #23201b 0%, #11100e 70%);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.2;
}

/* Wafu Moon Decoration */
.circle-moon {
    width: 60vh;
    height: 60vh;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), transparent);
    filter: blur(10px);
}

.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    height: 60%;
    align-items: center;
    justify-content: center;
}

.vertical-text-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.2em;
    color: #fff;
    text-shadow: 0 4px 20px rgba(0,0,0,0.8);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    letter-spacing: 0.3em;
    color: var(--accent-gold);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.scroll-indicator span {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--text-secondary);
}

.scroll-indicator .line {
    width: 1px;
    height: 50px;
    background-color: rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
}

.scroll-indicator .line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background-color: var(--accent-gold);
    animation: scrollLine 2s infinite cubic-bezier(0.65, 0, 0.35, 1);
}

@keyframes scrollLine {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(200%); }
}

/* =========================
   General Sections
   ========================= */
.section {
    padding: 8rem 0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.layout-flex {
    display: flex;
    justify-content: space-between;
    gap: 4rem;
}

.section-title {
    display: flex;
    flex-direction: column;
    margin-bottom: 3rem;
}

.section-title.center {
    align-items: center;
    text-align: center;
}

.section-title .jp {
    font-size: 2rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.section-title.center .jp::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background-color: var(--accent-red);
}

.section-title .en {
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.2em;
    margin-top: 5px;
}

/* =========================
   Concept Section
   ========================= */
.concept {
    background-color: var(--bg-light);
}

.concept-text {
    flex: 1;
    display: flex;
}

.section-title.vertical {
    writing-mode: vertical-rl;
    margin-bottom: 0;
    margin-right: 3rem;
    font-size: 1.4rem;
}

.section-title.vertical .jp::after {
    display: none;
}

.vertical-desc {
    writing-mode: vertical-rl;
    line-height: 2.5;
    font-size: 1.1rem;
    letter-spacing: 0.15em;
}

.concept-visual {
    flex: 1.2;
}

.visual-shoji {
    width: 100%;
    aspect-ratio: 3/4;
    background-color: #d1ccb9; /* Shoji paper color */
    position: relative;
    border: 15px solid #281d11; /* Wood frame */
    display: flex;
}

/* CSS Grid for Shoji Pattern */
.visual-shoji .grid {
    width: 100%;
    height: 100%;
    background-image: 
      linear-gradient(#281d11 4px, transparent 4px),
      linear-gradient(90deg, #281d11 4px, transparent 4px);
    background-size: 33.33% 20%;
    background-position: -2px -2px;
    opacity: 0.8;
}

.visual-shoji::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    box-shadow: inset 0 0 50px rgba(0,0,0,0.5);
}

/* =========================
   Menu Section
   ========================= */
.menu-layout {
    margin-top: 3rem;
}

.menu-category {
    flex: 1;
}

.category-name {
    font-size: 1.2rem;
    color: var(--accent-gold);
    margin-bottom: 2rem;
    border-left: 3px solid var(--accent-red);
    padding-left: 1rem;
}

.menu-list li {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1.5rem;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 0.5rem;
}

.menu-list .name {
    font-size: 1rem;
}

.menu-list .price {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.drink-btn-wrap {
    text-align: center;
    margin-top: 4rem;
}

.btn-outline {
    display: inline-block;
    border: 1px solid var(--text-secondary);
    padding: 1rem 3rem;
    transition: 0.3s;
}

.btn-outline:hover {
    border-color: var(--text-primary);
    background-color: rgba(255,255,255,0.05);
}

/* =========================
   Room / Gallery Section
   ========================= */
.room {
    background-color: var(--bg-light);
}

.room-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.room-item {
    aspect-ratio: 1/1;
    position: relative;
    border: 1px solid #333;
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
    overflow: hidden;
}

.placeholder-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    opacity: 0.6;
    letter-spacing: 0.1em;
    pointer-events: none;
    z-index: 1;
}

.room-cap {
    position: relative;
    z-index: 2;
    background: rgba(0,0,0,0.7);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    width: 100%;
}

/* Dark elegant pattern placeholders for rooms */
.pattern-wood {
    background: repeating-linear-gradient(
        90deg,
        #1f1710,
        #1f1710 10px,
        #261d15 10px,
        #261d15 20px
    );
}

.pattern-tatami {
    background: repeating-linear-gradient(
        0deg,
        #2a2a1f,
        #2a2a1f 15px,
        #303024 15px,
        #303024 17px
    );
}

.pattern-lattice {
    background: 
      linear-gradient(#222 2px, transparent 2px),
      linear-gradient(90deg, #222 2px, transparent 2px);
    background-color: #111;
    background-size: 20px 20px;
}

/* =========================
   Access Section
   ========================= */
.shop-name {
    font-size: 1.5rem;
    color: var(--accent-gold);
    margin-bottom: 2rem;
}

.info-list {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 1.5rem 0;
}

.info-list dt {
    color: var(--text-secondary);
}

.info-list dd {
    color: var(--text-primary);
    line-height: 1.8;
}

.tel-link {
    font-size: 1.5rem;
    color: var(--accent-gold);
}

.access-map {
    flex: 1.2;
}

.map-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: #1a1815;
    border: 1px solid #333;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
}

/* =========================
   Footer Section
   ========================= */
.footer {
    background-color: #080706;
    padding: 6rem 0 2rem;
    text-align: center;
    border-top: 1px solid rgba(195,173,122,0.1);
}

.footer-contact {
    margin-bottom: 5rem;
}

.footer-catch {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    letter-spacing: 0.2em;
}

.btn-group {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.btn-solid {
    background-color: var(--accent-red);
    color: #fff;
    padding: 1.2rem 3rem;
    border: 1px solid var(--accent-red);
    transition: 0.3s;
}

.btn-solid:hover {
    background-color: transparent;
    color: var(--accent-red);
}

.btn-outline-gold {
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: 0.3s;
}

.btn-outline-gold .small {
    font-size: 0.8rem;
}

.btn-outline-gold:hover {
    background-color: var(--accent-gold);
    color: #080706;
}

.footer-bottom {
    font-size: 0.8rem;
    color: #555;
    letter-spacing: 0.1em;
}

/* =========================
   Animations
   ========================= */
.fade-element {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}

.fade-element.delayed {
    transition-delay: 0.2s;
}

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

/* =========================
   Responsive
   ========================= */
@media (max-width: 768px) {
    .nav { display: none; }
    
    .hamburger {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }
    
    .hamburger span {
        width: 30px;
        height: 2px;
        background-color: var(--accent-gold);
    }

    .hero-content {
        align-items: center;
    }
    
    .vertical-text-wrap {
        writing-mode: horizontal-tb;
        flex-direction: column;
        text-align: center;
    }

    .hero-title {
        font-size: 2.2rem;
        margin-right: 0;
        margin-bottom: 1rem;
    }

    .layout-flex {
        flex-direction: column;
        gap: 3rem;
    }

    .menu-layout {
        flex-direction: column;
        gap: 3rem;
    }

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

    .concept-text {
        flex-direction: column;
    }

    .section-title.vertical {
        writing-mode: horizontal-tb;
        margin-bottom: 2rem;
    }

    .vertical-desc {
        writing-mode: horizontal-tb;
    }
    
    .info-list {
        grid-template-columns: 80px 1fr;
    }

    .btn-group {
        flex-direction: column;
        padding: 0 2rem;
    }
}