:root {
    --color-bg: #111111;
    --color-text: #f0f0f0;
    --color-accent-gold: #c5a059;
    --color-accent-gray: #333333;
    --color-accent-blue: #0f1c2e;
    --font-heading: 'Cinzel', serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-wa: 'Zen Old Mincho', serif;
    --spacing-container: 120px;
    --spacing-md: 60px;
}

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

html {
    scroll-behavior: smooth;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s;
}

a:hover {
    opacity: 0.7;
}

ul {
    list-style: none;
}

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

/* Typography */
.section-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 1px;
    background-color: var(--color-accent-gold);
}

.center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.center {
    text-align: center;
}

/* Structure */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.container-fluid {
    padding: 0 2rem;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 40px;
    transition: background-color 0.3s;
}

.header.scrolled {
    background-color: rgba(17, 17, 17, 0.9);
    backdrop-filter: blur(5px);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    line-height: 1.2;
    letter-spacing: 0.1em;
}

.logo-img {
    height: 50px;
    width: auto;
}

.footer-logo-img {
    height: 40px;
    width: auto;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-list li a {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
}

.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent-gold);
    transition: width 0.3s;
}

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

.header-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-btn {
    background: none;
    border: 1px solid var(--color-text);
    color: var(--color-text);
    padding: 5px 10px;
    cursor: pointer;
    font-family: var(--font-heading);
    transition: all 0.3s;
}

.lang-btn:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

.reserve-btn {
    background-color: var(--color-accent-gold);
    color: #000;
    padding: 10px 20px;
    font-family: var(--font-heading);
    font-weight: 700;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 1px;
    background-color: #fff;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: #111;
    z-index: 900;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: right 0.4s ease;
}

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

.mobile-menu nav ul {
    text-align: center;
}

.mobile-menu nav ul li {
    margin: 20px 0;
}

.mobile-menu nav ul li a {
    font-family: var(--font-heading);
    font-size: 2rem;
}

/* Hero */
.hero {
    height: 100vh;
    width: 100%;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

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

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    mix-blend-mode: difference;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4rem;
    letter-spacing: 0.2em;
    line-height: 1.2;
    margin-bottom: 20px;
}

.d-block {
    display: block;
}

.hero-subtitle {
    font-family: var(--font-wa);
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
}

.scroll-indicator .line {
    width: 1px;
    height: 60px;
    background-color: #fff;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* Information */
.info-list {
    border-top: 1px solid rgba(255,255,255,0.1);
}

.info-list li {
    padding: 20px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: baseline;
    gap: 40px;
}

.info-list .date {
    font-family: var(--font-heading);
    color: var(--color-accent-gold);
    min-width: 100px;
}

.info-link:hover {
    color: var(--color-accent-gold);
}

/* Concept */
.concept-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
}

.concept-image img {
    width: 100%;
    height: auto;
    filter: grayscale(0.2);
}

.concept-text {
    padding: 40px;
    background: linear-gradient(to right, rgba(17,17,17,0.8), transparent);
}

.concept-lead {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--color-accent-gold);
}

.bg-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-heading);
    font-size: 15vw;
    font-weight: 700;
    color: rgba(255,255,255,0.03);
    z-index: -1;
    pointer-events: none;
    white-space: nowrap;
}

/* Event */
.event-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.event-card {
    background-color: #1a1a1a;
    overflow: hidden;
    transition: transform 0.3s;
}

.event-card:hover {
    transform: translateY(-10px);
}

.event-card .card-img {
    height: 250px;
    background-size: cover;
    background-position: center;
}

.event-card .card-content {
    padding: 25px;
}

.event-card .tag {
    font-family: var(--font-heading);
    font-size: 0.7rem;
    padding: 5px 10px;
    border: 1px solid var(--color-accent-gold);
    color: var(--color-accent-gold);
    display: inline-block;
    margin-bottom: 15px;
}

.event-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.event-card .date {
    color: #888;
    font-size: 0.9rem;
}

/* Rooms */
.rooms {
    position: relative;
    padding: 0;
    height: 80vh;
    display: flex;
    align-items: center;
}

.rooms-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.5);
    z-index: -1;
}

.rooms-content {
    max-width: 600px;
    margin-left: auto; /* Right align content */
    margin-right: 10%;
    text-align: right;
}

.rooms-desc {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.btn-outline {
    display: inline-block;
    padding: 12px 30px;
    border: 1px solid currentColor;
    font-family: var(--font-heading);
    letter-spacing: 0.1em;
}

.btn-outline:hover {
    background-color: #fff;
    color: #111;
}

/* Plans */
.plans-list {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.plan-card {
    display: flex;
    gap: 60px;
    align-items: center;
}

.plan-card.reverse {
    flex-direction: row-reverse;
}

.plan-img {
    flex: 1;
    overflow: hidden;
}

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

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

.plan-content {
    flex: 1;
}

.plan-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.plan-desc {
    margin-bottom: 30px;
    color: #ccc;
}

.plan-features {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    font-size: 0.9rem;
    color: var(--color-accent-gold);
}

.plan-features li {
    border: 1px solid var(--color-accent-gold);
    padding: 5px 15px;
}

.plan-price {
    font-size: 1.2rem;
    margin-bottom: 30px;
    font-family: var(--font-heading);
}

.plan-price .price-val {
    font-size: 2rem;
    color: var(--color-accent-gold);
}


/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 250px;
    gap: 10px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s;
}

.gallery-item:hover img {
    opacity: 0.8;
}

/* Masonry-style adjustments */
.item-1 { grid-column: span 2; grid-row: span 2; }
.item-2 { grid-column: span 1; grid-row: span 1; }
.item-3 { grid-column: span 1; grid-row: span 2; }
/* item-4 & 5 default 1x1 */
.item-6 { grid-column: span 1; grid-row: span 1; }
.item-7 { grid-column: span 1; grid-row: span 2; }
.item-8 { grid-column: span 1; grid-row: span 1; }
.item-9 { grid-column: span 1; grid-row: span 1; }

@media (max-width: 900px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .item-1, .item-3, .item-7 { grid-column: span 1; grid-row: span 1; }
}


/* Policy */
.policy-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 60px;
    border: 1px solid #333;
    margin-bottom: 60px;
}

.policy-title {
    text-align: center;
    margin-bottom: 40px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
}

.policy-grid {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
    text-align: center;
    flex-wrap: wrap;
}

.policy-item h4 {
    color: var(--color-accent-gold);
    margin-bottom: 10px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.policy-cancel {
    border-top: 1px solid #333;
    padding-top: 40px;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.policy-cancel h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.cancel-list {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.cancel-list li {
    background: #222;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.9rem;
}

.cancel-note {
    font-size: 0.8rem;
    color: #888;
}


/* SNS */
.instagram-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.insta-item {
    aspect-ratio: 1;
    overflow: hidden;
}

.insta-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.insta-item:hover img {
    transform: scale(1.1);
}

/* Response for Plans */
@media (max-width: 900px) {
    .plan-card, .plan-card.reverse {
        flex-direction: column;
        gap: 30px;
    }
    
    .plan-img {
        width: 100%;
    }
    
    .instagram-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.access-layout {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.access-info {
    flex: 1;
}

.access-map {
    flex: 1;
}

.grayscale-map {
    width: 100%;
    filter: grayscale(100%) invert(90%);
}

.hotel-name {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    margin-bottom: 20px;
}

address {
    font-style: normal;
    color: #ccc;
    line-height: 2;
    margin-bottom: 30px;
}

/* Footer */
.footer {
    padding: 60px 0 20px;
    background-color: #000;
    border-top: 1px solid #333;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.footer-links {
    display: flex;
    gap: 30px;
    font-size: 0.9rem;
}

.copyright {
    font-size: 0.8rem;
    color: #666;
}

/* Responsive */
@media (max-width: 900px) {
    .nav { display: none; }
    .menu-toggle { display: flex; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .concept-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .item-1 { grid-column: span 2; }
    
    .access-layout {
        flex-direction: column;
    }
}

@media (max-width: 600px) {
    .section-title {
        font-size: 2rem;
    }
    
    .info-list li {
        flex-direction: column;
        gap: 5px;
    }
}

/* Produced by Section */
.produced {
    background-color: var(--color-bg);
    position: relative;
    overflow: hidden;
}

.produced-label {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-accent-gold);
    margin-bottom: 10px;
}

.produced-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 50px;
}

.produced-text {
    padding-right: 40px;
}

.produced-lead {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-accent-gold);
    margin-bottom: 25px;
    letter-spacing: 0.05em;
}

.produced-desc {
    color: #aaa;
    line-height: 2;
    margin-bottom: 30px;
}

.produced-service {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 40px;
}

.service-pack {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    color: #888;
    margin-bottom: 10px;
}

.service-price {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-accent-gold);
    margin-bottom: 30px;
}

.price-unit {
    font-size: 0.9rem;
    color: #888;
    margin-left: 5px;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.service-item:last-child {
    border-bottom: none;
}

.service-icon {
    width: 40px;
    height: 40px;
}

.service-item span {
    font-size: 0.95rem;
    color: #ccc;
}

/* Footer Credit */
.credit {
    font-size: 0.75rem;
    color: #888;
    margin-top: 10px;
}

.credit a {
    color: var(--color-accent-gold);
    text-decoration: underline;
}

.credit a:hover {
    opacity: 0.8;
}

@media (max-width: 900px) {
    .produced-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .produced-text {
        padding-right: 0;
    }
}

@media (max-width: 600px) {
    .produced-service {
        padding: 30px 20px;
    }
    
    .service-price {
        font-size: 2rem;
    }
}

/* Demo Info Section */
.demo-info {
    padding: 60px 0 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Achievement Banner */
.achievement-banner {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-accent-gold);
    border-radius: 8px;
    padding: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    margin-bottom: 60px;
}

.banner-content {
    flex: 1;
}

.banner-title {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-accent-gold);
    margin-bottom: 15px;
}

.banner-desc {
    color: #ccc;
    font-size: 1rem;
    line-height: 1.6;
}

.banner-actions {
    display: flex;
    gap: 20px;
}

.btn-primary {
    display: inline-block;
    padding: 15px 30px;
    background: linear-gradient(135deg, var(--color-accent-gold), #E8D5A3);
    color: #000;
    font-weight: 700;
    border-radius: 4px;
    transition: transform 0.3s, opacity 0.3s;
    white-space: nowrap;
}

.btn-primary:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

.btn-secondary {
    display: inline-block;
    padding: 15px 30px;
    border: 1px solid var(--color-accent-gold);
    color: var(--color-accent-gold);
    font-weight: 700;
    border-radius: 4px;
    transition: background 0.3s, color 0.3s;
    white-space: nowrap;
}

.btn-secondary:hover {
    background: var(--color-accent-gold);
    color: #000;
}

/* Scope Section */
.scope-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.scope-item {
    background: rgba(255, 255, 255, 0.02);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: background 0.3s;
}

.scope-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.scope-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
}

.scope-icon img {
    width: 100%;
    height: 100%;
}

.scope-title {
    font-family: var(--font-heading);
    color: var(--color-accent-gold);
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.scope-text {
    font-size: 0.9rem;
    color: #ccc;
    line-height: 1.6;
}

.scope-note {
    text-align: right;
    font-size: 0.75rem;
    color: #666;
    margin-top: 10px;
    padding-bottom: 20px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: #1a1a1a;
    border: 1px solid var(--color-accent-gold);
    padding: 60px;
    border-radius: 8px;
    max-width: 600px;
    width: 90%;
    text-align: center;
    position: relative;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform 0.3s;
}

.modal-active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: #666;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}

.modal-close:hover {
    color: #fff;
}

.modal-title {
    font-family: var(--font-body);
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #fff;
}

.modal-desc {
    color: #ccc;
    line-height: 1.8;
    margin-bottom: 40px;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Responsive */
@media (max-width: 900px) {
    .achievement-banner {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .scope-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .modal-content {
        padding: 40px 20px;
    }

    .modal-actions {
        flex-direction: column;
        align-items: stretch;
    }
}