@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;1,400&family=Noto+Serif+JP:wght@300;400;500;700&family=Zen+Kaku+Gothic+New:wght@300;400;500&display=swap');

:root {
    /* Japanese Fine Dining Palette */
    --color-bg: #FAF8F5; /* Washi paper white */
    --color-surface: #FFFFFF;
    --color-ink: #1A1A1A; /* Sumi black */
    --color-ink-light: #4A4A4A;
    --color-sakura: #E8D3D6; /* Subtle cherry blossom */
    --color-gold: #B89947; /* Kintsugi gold */
    --color-wood: #8B5A2B;
    --color-matcha: #4A5D23;
    --color-dark-bg: #121212;
    --color-dark-surface: #1E1E1E;
    
    /* Typography */
    --font-heading: 'Noto Serif JP', 'Cormorant Garamond', serif;
    --font-body: 'Zen Kaku Gothic New', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Transitions */
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-medium: 0.4s ease-out;
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-ink);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.3;
    color: var(--color-ink);
}

.title-jp {
    font-size: 2.5rem;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.title-en {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-gold);
    font-family: 'Cormorant Garamond', serif;
    display: block;
    margin-bottom: var(--spacing-md);
}

.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-heading);
    letter-spacing: 0.2em;
    line-height: 2;
    font-size: 1.2rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-ink-light);
    font-size: 1.05rem;
    letter-spacing: 0.03em;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-dark {
    background-color: var(--color-dark-bg);
    color: var(--color-bg);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark p, .section-dark .vertical-text {
    color: var(--color-bg);
}
.section-dark .title-en {
    color: var(--color-gold);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: var(--transition-medium);
    background: transparent;
}

header.scrolled {
    background: rgba(250, 248, 245, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1rem 0;
}
header.scrolled.dark-mode {
    background: rgba(18, 18, 18, 0.98);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 1rem;
}

.logo img {
    height: 40px;
    transition: var(--transition-medium);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-ink);
    letter-spacing: 0.1em;
}
header.dark-mode:not(.scrolled) .logo-text, 
header.dark-mode:not(.scrolled) .nav-link {
    color: var(--color-bg);
}

.nav-desktop {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-ink);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    position: relative;
    padding-bottom: 5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-gold);
    transition: var(--transition-medium);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.btn-reserve {
    border: 1px solid var(--color-gold);
    padding: 0.8rem 2rem;
    color: var(--color-gold) !important;
    text-decoration: none;
    font-family: var(--font-heading);
    letter-spacing: 0.1em;
    transition: var(--transition-medium);
    display: inline-block;
}

.btn-reserve:hover {
    background-color: var(--color-gold);
    color: var(--color-bg) !important;
}
header.scrolled .btn-reserve {
    border-color: var(--color-ink);
    color: var(--color-ink) !important;
}
header.scrolled .btn-reserve:hover {
    background-color: var(--color-ink);
    color: var(--color-bg) !important;
}

/* Mobile Nav */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 30px;
    height: 2px;
    background-color: var(--color-ink);
    transition: var(--transition-medium);
}
header.dark-mode:not(.scrolled) .menu-toggle span {
    background-color: var(--color-bg);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--color-ink);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--color-ink);
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--color-bg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: var(--transition-medium);
}

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

.mobile-nav .nav-link {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    color: var(--color-ink);
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 1;
    transform: scale(1.05);
    animation: slowZoom 20s infinite alternate;
}
.hero-bg::after {
    content: '';
    position: absolute;
    top:0; left:0; width:100%; height:100%;
    background: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.6));
}

@keyframes slowZoom {
    0% { transform: scale(1.05); }
    100% { transform: scale(1.15); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-bg);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s forwards 0.5s;
}

.hero-title {
    font-size: 4rem;
    font-family: var(--font-heading);
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--color-bg);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-subtitle {
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    font-family: 'Cormorant Garamond', serif;
    text-transform: uppercase;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Grids and Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.image-wrapper {
    position: relative;
    overflow: hidden;
}

.image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s ease;
}
.image-wrapper:hover img {
    transform: scale(1.05);
}

.offset-image {
    margin-top: 4rem;
}

/* Cards */
.menu-card {
    background: var(--color-surface);
    padding: 2rem;
    border: 1px solid rgba(0,0,0,0.05);
    text-align: center;
    transition: var(--transition-medium);
}
.menu-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.05);
}
.menu-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    margin-bottom: 1.5rem;
}
.menu-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.menu-card .price {
    color: var(--color-gold);
    font-family: var(--font-heading);
    font-size: 1.25rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
    color: var(--color-ink);
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ddd;
    background: var(--color-bg);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.3s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-gold);
}
.btn-submit {
    background: var(--color-ink);
    color: var(--color-bg);
    border: none;
    padding: 1rem 3rem;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition-medium);
    width: 100%;
}
.btn-submit:hover {
    background: var(--color-gold);
}

/* Footer */
footer {
    background-color: var(--color-ink);
    color: var(--color-bg);
    padding: 6rem 0 2rem;
    font-family: var(--font-heading);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}
.footer-logo {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--color-bg);
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}
.footer-logo img {
    height: 40px;
    filter: brightness(0) invert(1);
}
.footer-col h4 {
    color: var(--color-gold);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}
.footer-col ul {
    list-style: none;
}
.footer-col li {
    margin-bottom: 0.8rem;
}
.footer-col a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s;
}
.footer-col a:hover {
    color: var(--color-bg);
}
.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    color: #666;
    font-family: var(--font-body);
    font-size: 0.9rem;
}

/* Page Header (Internal Pages) */
.page-hero {
    height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-ink);
    position: relative;
    overflow: hidden;
}
.page-hero-bg {
    position: absolute;
    top:0; left:0; width:100%; height:100%;
    background-size: cover; background-position: center;
    opacity: 0.4;
}
.page-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}
.page-hero-title {
    color: var(--color-bg);
    font-size: 3.5rem;
    letter-spacing: 0.1em;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}
.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Adjustments */
@media (max-width: 1024px) {
    .grid-2, .grid-3, .footer-grid {
        gap: 2rem;
    }
    .hero-title { font-size: 3rem; }
    .page-hero-title { font-size: 2.8rem; }
}

@media (max-width: 768px) {
    .nav-desktop { display: none; }
    .menu-toggle { display: flex; }
    
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    
    .offset-image { margin-top: 0; }
    
    .section { padding: var(--spacing-lg) 0; }
    
    .hero-title { font-size: 2.5rem; }
    .page-hero-title { font-size: 2rem; }
    
    .vertical-text {
        writing-mode: horizontal-tb;
        letter-spacing: 0.1em;
        margin-bottom: 2rem;
    }
    
    .footer-logo { justify-content: center; }
}