/* CSS Variables */
:root {
    --primary-blue: #1e40af;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --dark-blue: #1e3a8a;
    --white: #ffffff;
    --off-white: #f8fafc;
    --gray: #64748b;
    --dark-gray: #1e293b;
    --gold: #fbbf24;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    overflow-x: hidden;
    background: #000;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-blue);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s, visibility 0.5s;
}

.loading-screen.loaded {
    opacity: 0;
    visibility: hidden;
}

.loading-content {
    text-align: center;
    color: var(--white);
}

.loading-number {
    font-family: 'Oswald', sans-serif;
    font-size: 8rem;
    font-weight: 700;
    line-height: 1;
    animation: pulse 1.5s infinite;
}

.loading-text {
    font-family: 'Oswald', sans-serif;
    font-size: 2rem;
    letter-spacing: 0.3em;
    margin-top: -1rem;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.95); }
}

/* Custom Cursor */
.custom-cursor,
.cursor-follower {
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transition: transform 0.2s;
}

.custom-cursor {
    width: 8px;
    height: 8px;
    background: var(--gold);
    border-radius: 50%;
    transform: translate(-50%, -50%);
}

.cursor-follower {
    width: 30px;
    height: 30px;
    border: 2px solid var(--gold);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: transform 0.3s;
}

.custom-cursor.hover,
.cursor-follower.hover {
    transform: translate(-50%, -50%) scale(1.5);
}

/* Navigation */
.navigation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 2rem;
    transition: all 0.3s ease;
}

.navigation.scrolled {
    background: rgba(30, 64, 175, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
}

.logo-7 {
    font-family: 'Oswald', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gold);
}

.logo-text {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.1em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-item {
    color: var(--white);
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: color 0.3s;
}

.nav-item:hover {
    color: var(--gold);
}

.nav-cta {
    background: var(--gold);
    color: var(--dark-blue);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    letter-spacing: 0.05em;
    transition: all 0.3s;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(251, 191, 36, 0.3);
}

.nav-burger {
    display: none;
    width: 30px;
    height: 20px;
    position: relative;
    cursor: pointer;
}

.nav-burger span {
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--white);
    transition: all 0.3s;
}

.nav-burger span:first-child {
    top: 0;
}

.nav-burger span:last-child {
    bottom: 0;
}

.nav-burger.active span:first-child {
    transform: rotate(45deg);
    top: 9px;
}

.nav-burger.active span:last-child {
    transform: rotate(-45deg);
    bottom: 9px;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--dark-blue);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-content {
    text-align: center;
}

.mobile-menu-item {
    display: block;
    color: var(--white);
    font-size: 2rem;
    font-weight: 700;
    margin: 1.5rem 0;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s;
}

.mobile-menu.active .mobile-menu-item {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu-cta {
    display: inline-block;
    background: var(--gold);
    color: var(--dark-blue);
    padding: 1rem 3rem;
    border-radius: 50px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2rem;
}

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

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.8) 0%, rgba(59, 130, 246, 0.8) 100%);
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

/* Alternative hero background image */
.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1514525253161-7a46d19cd819?w=1920&h=1080&fit=crop') center/cover;
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    max-width: 900px;
    padding: 0 2rem;
}

.hero-date {
    font-family: 'Oswald', sans-serif;
    font-size: 1.2rem;
    letter-spacing: 0.3em;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-title {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.title-line-1,
.title-line-2 {
    display: block;
}

.hero-subtitle {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.hero-location {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    opacity: 0.8;
}

.hero-cta-wrapper {
    margin-top: 3rem;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: var(--gold);
    color: var(--dark-blue);
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-family: 'Oswald', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    transition: all 0.3s;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(251, 191, 36, 0.4);
}

.cta-arrow {
    transition: transform 0.3s;
}

.hero-cta:hover .cta-arrow {
    transform: translateX(5px);
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--white);
}

.scroll-text {
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    margin-bottom: 1rem;
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: var(--white);
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 20px;
    background: var(--white);
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% { transform: translateY(-20px); }
    100% { transform: translateY(50px); }
}

/* Sections */
section {
    padding: 5rem 0;
    position: relative;
}

.concept,
.special,
.voice,
.entry {
    background: var(--white);
}

.schedule,
.gallery {
    background: var(--off-white);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-number {
    font-family: 'Oswald', sans-serif;
    font-size: 5rem;
    font-weight: 200;
    color: var(--light-blue);
    line-height: 1;
}

.section-title {
    font-family: 'Oswald', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-blue);
    letter-spacing: 0.1em;
    margin-top: -2rem;
}

/* Containers */
.concept-container,
.schedule-container,
.special-container,
.gallery-container,
.voice-container,
.entry-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Concept Section */
.concept-main {
    text-align: center;
    margin-bottom: 4rem;
}

.concept-lead {
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: 2rem;
    color: var(--dark-blue);
}

.concept-text {
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
    color: var(--gray);
}

.concept-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

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

.feature-icon {
    font-family: 'Oswald', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 1rem;
}

.feature-title {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.feature-text {
    color: var(--gray);
    line-height: 1.6;
}

/* Schedule Section */
.schedule-timeline {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.timeline-track {
    position: absolute;
    left: 80px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--light-blue);
}

.schedule-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 3rem;
    position: relative;
}

.schedule-time {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-blue);
    min-width: 100px;
    position: relative;
}

.schedule-time::after {
    content: '';
    position: absolute;
    right: -30px;
    top: 10px;
    width: 12px;
    height: 12px;
    background: var(--gold);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: 0 0 0 2px var(--light-blue);
}

.schedule-content {
    margin-left: 60px;
}

.schedule-title {
    font-family: 'Oswald', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark-blue);
    letter-spacing: 0.05em;
    margin-bottom: 0.3rem;
}

.schedule-desc {
    color: var(--gray);
}

/* Special Benefits */
.special {
    position: relative;
    overflow: hidden;
}

.special-bg {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle at center, rgba(251, 191, 36, 0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

.special-price {
    text-align: center;
    margin-bottom: 4rem;
}

.price-label {
    font-family: 'Oswald', sans-serif;
    font-size: 1rem;
    letter-spacing: 0.2em;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.price-amount {
    font-family: 'Oswald', sans-serif;
    font-size: 4rem;
    font-weight: 700;
    color: var(--dark-blue);
    line-height: 1;
}

.price-unit {
    font-size: 1.2rem;
    color: var(--gray);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: var(--white);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
    transition: all 0.3s;
    overflow: hidden;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.benefit-card.featured {
    border: 2px solid var(--gold);
    transform: scale(1.05);
}

.benefit-card.premium {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
}

.benefit-ribbon {
    position: absolute;
    top: 20px;
    right: -30px;
    background: var(--gold);
    color: var(--dark-blue);
    padding: 5px 40px;
    transform: rotate(45deg);
    font-weight: 700;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.benefit-header {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 1rem;
}

.benefit-count {
    font-family: 'Oswald', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark-blue);
}

.premium .benefit-count {
    color: var(--gold);
}

.benefit-unit {
    font-size: 1.2rem;
    margin-left: 0.5rem;
    color: var(--gray);
}

.premium .benefit-unit {
    color: var(--white);
    opacity: 0.8;
}

.benefit-price {
    font-family: 'Oswald', sans-serif;
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--gray);
}

.premium .benefit-price {
    color: var(--white);
    opacity: 0.9;
}

.benefit-title {
    font-family: 'Oswald', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
    color: var(--dark-blue);
}

.premium .benefit-title {
    color: var(--gold);
}

.benefit-desc {
    text-align: center;
    font-size: 0.95rem;
    color: var(--gray);
}

.premium .benefit-desc {
    color: var(--white);
    opacity: 0.9;
}

.special-message {
    text-align: center;
    margin-top: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.message-icon {
    font-size: 2rem;
}

.message-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-blue);
}

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 300px);
    gap: 1rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
}

.gallery-item.large {
    grid-row: span 2;
}

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

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(30, 64, 175, 0.8) 100%);
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-text {
    color: var(--white);
    font-family: 'Oswald', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

/* Voice Section */
.voice {
    background: var(--dark-blue);
    color: var(--white);
    padding: 4rem 0;
}

.voice-header {
    text-align: center;
    margin-bottom: 3rem;
}

.voice-title {
    font-family: 'Oswald', sans-serif;
    font-size: 2rem;
    letter-spacing: 0.2em;
}

.voice-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    min-height: 200px;
}

.voice-item {
    position: absolute;
    width: 100%;
    opacity: 0;
    transition: opacity 0.5s;
}

.voice-item.active {
    opacity: 1;
}

.voice-text {
    font-size: 1.3rem;
    line-height: 1.8;
    text-align: center;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.voice-author {
    text-align: center;
    color: var(--gold);
    font-weight: 700;
}

.voice-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.dot {
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s;
}

.dot.active {
    background: var(--gold);
}

/* Entry Section */
.entry-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 4rem;
}

.step {
    text-align: center;
}

.step-number {
    font-family: 'Oswald', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark-blue);
}

.step-arrow {
    font-size: 2rem;
    color: var(--light-blue);
}

.entry-cta-wrapper {
    text-align: center;
    margin-bottom: 3rem;
}

.entry-cta {
    display: inline-block;
    background: var(--gold);
    color: var(--dark-blue);
    padding: 1.5rem 4rem;
    border-radius: 8px;
    transition: all 0.3s;
}

.entry-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(251, 191, 36, 0.3);
}

.entry-cta-text {
    display: block;
    font-family: 'Oswald', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.entry-cta-sub {
    display: block;
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

.entry-info {
    text-align: center;
    color: var(--gray);
}

.entry-info p {
    margin-bottom: 0.5rem;
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 4rem 0 2rem;
}

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

.footer-logo {
    text-align: center;
    margin-bottom: 3rem;
}

.footer-7 {
    font-family: 'Oswald', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--gold);
}

.footer-seventh {
    font-family: 'Oswald', sans-serif;
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    margin-top: -0.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    font-family: 'Oswald', sans-serif;
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--gold);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--white);
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-social {
    color: var(--white);
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-social:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
}

/* Fixed Elements */
.fixed-elements {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 100;
}

.social-links {
    margin-bottom: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--dark-blue);
    color: var(--white);
    border-radius: 50%;
    font-weight: 700;
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--gold);
    color: var(--dark-blue);
    transform: scale(1.1);
}

.page-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(0, 0, 0, 0.1);
    z-index: 1001;
}

.progress-bar {
    height: 100%;
    background: var(--gold);
    width: 0%;
    transition: width 0.3s;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-item.wide {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-burger {
        display: block;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .concept-features,
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .entry-steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, 250px);
    }
    
    .gallery-item.large,
    .gallery-item.wide {
        grid-column: span 1;
        grid-row: span 1;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .fixed-elements {
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .loading-number {
        font-size: 6rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .concept-lead {
        font-size: 1.3rem;
    }
    
    .price-amount {
        font-size: 3rem;
    }
    
    .benefit-count {
        font-size: 2rem;
    }
}

/* Hide cursor on touch devices */
@media (hover: none) {
    .custom-cursor,
    .cursor-follower {
        display: none;
    }
}

/* Animation utilities */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Prevent body scroll when menu is open */
body.menu-open {
    overflow: hidden;
}