:root {
    /* Color Palette: Ultra Premium Dark */
    --bg-deep: #070709;
    --bg-glass: rgba(18, 18, 22, 0.6);
    --bg-glass-solid: rgba(25, 25, 30, 0.8);
    
    --text-main: #EAEAEA;
    --text-muted: #8F8F99;
    
    --accent-gold: #D4AF37;
    --accent-gold-dim: #A67C00;
    --accent-red: #8B0000;
    
    /* Typography */
    --font-heading: 'Cinzel', 'Noto Serif JP', serif;
    --font-body: 'Outfit', sans-serif;
    
    /* UI Constants */
    --border-radius: 4px;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

body {
    background-color: var(--bg-deep);
    color: var(--text-main);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    /* Smooth scroll behavior */
    scroll-behavior: smooth;
}

/* Ambient Background Effects */
.ambient-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -2;
    pointer-events: none;
}
.glow-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(212,175,55,0.08) 0%, rgba(0,0,0,0) 70%);
    top: -20%;
    right: -10%;
}
.glow-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139,0,0,0.06) 0%, rgba(0,0,0,0) 70%);
    bottom: -10%;
    left: -10%;
}

.noise-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opactity='0.05'/%3E%3C/svg%3E");
    opacity: 0.04;
    z-index: -1;
    pointer-events: none;
}

/* Typography & Utilities */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    letter-spacing: 0.05em;
}
.text-gold {
    color: var(--accent-gold);
    text-shadow: 0 0 20px rgba(212, 175, 55, 0.2);
}

/* Navigation */
.glass-nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 20px 0;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: var(--bg-glass);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 100;
    transition: var(--transition-smooth);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 40px;
}
.logo {
    font-size: 1.5rem;
    letter-spacing: 0.2em;
    color: var(--text-main);
}
.nav-links {
    list-style: none;
    display: flex;
    gap: 40px;
    align-items: center;
}
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: var(--transition-smooth);
}
.nav-links a:hover {
    color: var(--accent-gold);
}

/* Buttons */
.btn-primary-small, .btn-primary, .btn-secondary {
    display: inline-block;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
    cursor: pointer;
}
.btn-primary-small {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dim));
    color: #000;
    font-weight: 600;
    font-size: 0.8rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.15);
}
.btn-primary-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.3);
}

.btn-primary {
    padding: 16px 40px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dim));
    color: #000;
    font-weight: 600;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.15);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}
.btn-secondary {
    padding: 16px 40px;
    background: transparent;
    color: var(--text-main);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--border-radius);
    backdrop-filter: blur(5px);
}
.btn-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 40px 0;
    gap: 60px;
}
.hero-content {
    flex: 1;
}
.hero-subtitle {
    font-size: 0.9rem;
    color: var(--accent-gold);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 20px;
}
.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 30px;
}
.hero-description {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 500px;
    margin-bottom: 40px;
}
.hero-actions {
    display: flex;
    gap: 20px;
}
.hero-image-container {
    flex: 1;
    height: 600px;
    position: relative;
}
.hero-image-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(25,25,30,0.8) 0%, rgba(7,7,9,1) 100%), url('./bg.png');
    background-size: cover;
    background-position: center;
    background-blend-mode: overlay;
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
}
.hero-image-placeholder::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle, rgba(212,175,55,0.1) 0%, transparent 60%);
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s cubic-bezier(0.25, 1, 0.5, 1);
}
.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: all 1s cubic-bezier(0.25, 1, 0.5, 1);
}
.fade-in-up.visible, .fade-in-right.visible {
    opacity: 1;
    transform: translate(0);
}
.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }
.delay-3 { transition-delay: 0.6s; }

/* Layout & Sections */
.section {
    padding: 120px 40px;
    position: relative;
    z-index: 10;
}
.bg-darker {
    background-color: rgba(0,0,0,0.4);
    border-top: 1px solid rgba(255,255,255,0.02);
    border-bottom: 1px solid rgba(255,255,255,0.02);
}
.container {
    max-width: 1200px;
    margin: 0 auto;
}
.section-title {
    font-size: 3rem;
    margin-bottom: 60px;
    text-align: center;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 2px;
    background: var(--accent-gold);
    margin: 20px auto 0;
}
.text-center { text-align: center; }
.mb-4 { margin-bottom: 1rem; }
.mt-4 { margin-top: 1rem; }
.mt-5 { margin-top: 3rem; }
.small { font-size: 0.8rem; }

/* Concept Grid */
.concept-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.concept-text {
    font-size: 1.05rem;
    color: var(--text-muted);
}
.concept-image .glass-card {
    background: var(--bg-glass-solid);
    border: 1px solid rgba(212,175,55,0.15);
    padding: 40px;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
}
.concept-image .glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--accent-gold), transparent);
}
.features-list {
    list-style: none;
}
.features-list li {
    font-size: 1.1rem;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
    display: flex;
    gap: 15px;
}
.features-list li:last-child { margin-bottom: 0; }

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.service-card {
    background: var(--bg-glass);
    border: 1px solid rgba(255,255,255,0.05);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    transition: var(--transition-smooth);
    position: relative;
    display: flex;
    flex-direction: column;
}
.service-card:hover {
    transform: translateY(-10px);
    border-color: rgba(212,175,55,0.3);
    background: var(--bg-glass-solid);
}
.service-card h4 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    line-height: 1.3;
}
.service-card .price {
    display: block;
    font-size: 1.2rem;
    font-family: var(--font-body);
    margin-top: 10px;
    letter-spacing: 0;
}
.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    flex-grow: 1;
}
.service-card.featured {
    border-color: rgba(212,175,55,0.5);
    transform: scale(1.05);
    background: var(--bg-glass-solid);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}
.service-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}
.featured-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dim));
    color: #000;
    padding: 5px 15px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    border-radius: 20px;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Booking Section */
.booking-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        padding-top: 150px;
        text-align: center;
    }
    .hero-title { font-size: 3rem; }
    .hero-actions { justify-content: center; }
    .hero-image-container { width: 100%; height: 400px; }
    
    .concept-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .service-card.featured { transform: scale(1); }
    .service-card.featured:hover { transform: translateY(-5px); }
    
    .nav-links { display: none; } /* Simplified for demo */
}