/* ============================================
   VANA - Luxury Fragrance Storefront
   Cinematic Dark Luxury Theme
   ============================================ */

/* CSS Custom Properties */
:root {
    /* Color Palette - Deep Emerald Luxury */
    --color-bg-primary: #0a0f0c;
    --color-bg-secondary: #0d1410;
    --color-bg-tertiary: #111a14;
    --color-emerald-deep: #0d2818;
    --color-emerald-rich: #1a3d2a;
    --color-emerald-bright: #2d5a3d;
    --color-forest-shadow: #0a1a10;
    --color-charcoal: #1a1a1a;
    --color-smoke: rgba(10, 15, 12, 0.85);
    --color-white: #ffffff;
    --color-white-soft: #f5f5f5;
    --color-white-muted: rgba(255, 255, 255, 0.7);
    --color-white-subtle: rgba(255, 255, 255, 0.4);
    --color-gold: #c9a962;
    --color-gold-soft: rgba(201, 169, 98, 0.3);
    
    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    --space-2xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-luxury: 1.2s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Z-index layers */
    --z-particles: 0;
    --z-background: 1;
    --z-content: 10;
    --z-nav: 100;
    --z-overlay: 50;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    background-color: var(--color-bg-primary);
    color: var(--color-white);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Particle Canvas */
.particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-particles);
    opacity: 0.4;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-nav);
    padding: var(--space-md) var(--space-lg);
    transition: background-color var(--transition-medium), 
                backdrop-filter var(--transition-medium);
}

.nav.scrolled {
    background-color: rgba(10, 15, 12, 0.9);
    backdrop-filter: blur(20px);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1600px;
    margin: 0 auto;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--color-white);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.nav-logo:hover {
    opacity: 0.7;
}

.nav-links {
    display: flex;
    gap: var(--space-lg);
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-white-muted);
    text-decoration: none;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

.nav-link:hover {
    color: var(--color-white);
}

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

.nav-cart {
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    padding: var(--space-xs);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-cart:hover {
    transform: scale(1.1);
    opacity: 0.8;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 800px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: var(--z-background);
}

.hero-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.1);
    transition: transform 8s ease-out;
}

.hero.loaded .hero-image {
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(10, 15, 12, 0.3) 0%,
        rgba(10, 15, 12, 0.1) 40%,
        rgba(10, 15, 12, 0.6) 100%
    );
}

.hero-fog {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(
        to top,
        var(--color-bg-primary) 0%,
        transparent 100%
    );
    opacity: 0.9;
}

.hero-content {
    position: relative;
    z-index: var(--z-content);
    text-align: center;
    padding: var(--space-lg);
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(3rem, 10vw, 8rem);
    line-height: 0.95;
    letter-spacing: 0.05em;
    color: var(--color-white);
}

.hero-title-line {
    display: block;
    opacity: 0;
    transform: translateY(60px);
    transition: opacity 1.2s var(--transition-luxury),
                transform 1.2s var(--transition-luxury);
}

.hero-title-line.revealed {
    opacity: 1;
    transform: translateY(0);
}

.hero-title-line:nth-child(2) {
    transition-delay: 0.2s;
}

.hero-bottle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -40%);
    z-index: -1;
    opacity: 0;
    transition: opacity 1.5s var(--transition-luxury) 0.5s,
                transform 1.5s var(--transition-luxury) 0.5s;
}

.hero-bottle.revealed {
    opacity: 1;
    transform: translate(-50%, -45%);
}

.hero-bottle-img {
    width: clamp(200px, 30vw, 400px);
    height: auto;
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.5));
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-lg);
    left: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    z-index: var(--z-content);
}

.hero-scroll-text {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-white-muted);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transform: rotate(180deg);
}

.hero-scroll-arrow {
    animation: pulse-arrow 2s ease-in-out infinite;
}

@keyframes pulse-arrow {
    0%, 100% { opacity: 0.4; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(5px); }
}

/* ============================================
   Feature Section (Split Screen)
   ============================================ */
.feature {
    position: relative;
    min-height: 100vh;
    padding: var(--space-2xl) 0;
    background-color: var(--color-bg-secondary);
}

.feature-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    min-height: 80vh;
    align-items: center;
}

.feature-visual {
    position: sticky;
    top: 20vh;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
}

.feature-bottle-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-bottle {
    width: clamp(250px, 35vw, 450px);
    height: auto;
    filter: drop-shadow(0 40px 80px rgba(0, 0, 0, 0.4));
    transition: transform var(--transition-medium);
}

.feature-bird {
    position: absolute;
    width: 120px;
    height: 120px;
    pointer-events: none;
    z-index: 10;
    opacity: 0.9;
}

.feature-bird-img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

.feature-depth-bg {
    position: absolute;
    inset: -20%;
    background: radial-gradient(
        ellipse at center,
        rgba(45, 90, 61, 0.15) 0%,
        transparent 70%
    );
    pointer-events: none;
    transition: transform var(--transition-medium);
}

.feature-content {
    padding: var(--space-lg) 0;
    max-width: 500px;
}

.feature-header {
    margin-bottom: var(--space-md);
}

.feature-subtitle {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    color: var(--color-white);
    display: block;
}

.feature-type {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-gold);
    display: block;
    margin-top: var(--space-xs);
}

.feature-story {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 300;
    font-style: italic;
    line-height: 1.8;
    color: var(--color-white-muted);
    margin-bottom: var(--space-lg);
}

.scent-pyramid {
    margin-bottom: var(--space-lg);
}

.scent-title {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-white-subtle);
    margin-bottom: var(--space-md);
}

.scent-layer {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: var(--space-sm) 0;
}

.scent-note {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-gold);
}

.scent-desc {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 300;
    font-style: italic;
    color: var(--color-white-muted);
    text-align: right;
}

.scent-divider {
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--color-white-subtle),
        transparent
    );
    margin: var(--space-xs) 0;
}

.feature-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: 1px solid var(--color-white-subtle);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.feature-cta:hover {
    background-color: var(--color-white);
    color: var(--color-bg-primary);
    border-color: var(--color-white);
}

.feature-cta svg {
    transition: transform var(--transition-fast);
}

.feature-cta:hover svg {
    transform: rotate(90deg);
}

/* ============================================
   Collection Section
   ============================================ */
.collection {
    padding: var(--space-2xl) var(--space-lg);
    background-color: var(--color-bg-primary);
}

.collection-container {
    max-width: 1400px;
    margin: 0 auto;
}

.collection-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 300;
    letter-spacing: 0.15em;
    text-align: center;
    color: var(--color-white);
    margin-bottom: var(--space-2xl);
}

.collection-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.product-card {
    perspective: 1000px;
    cursor: pointer;
}

.product-card-inner {
    position: relative;
    background-color: var(--color-bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--space-lg);
    transition: transform var(--transition-medium),
                border-color var(--transition-medium);
    transform-style: preserve-3d;
}

.product-card:hover .product-card-inner {
    border-color: var(--color-gold-soft);
}

.product-visual {
    position: relative;
    aspect-ratio: 3/4;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.product-image {
    width: 70%;
    height: auto;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image {
    transform: scale(1.05);
}

.product-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(10, 15, 12, 0.95) 0%,
        transparent 60%
    );
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding: var(--space-md);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-volume {
    font-family: var(--font-body);
    font-size: 0.6rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-white-subtle);
    margin-bottom: var(--space-xs);
}

.product-price {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-gold);
    margin-bottom: var(--space-sm);
}

.product-quick-buy {
    padding: var(--space-xs) var(--space-md);
    background-color: var(--color-white);
    border: none;
    color: var(--color-bg-primary);
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.product-quick-buy:hover {
    background-color: var(--color-gold);
}

.product-info {
    text-align: center;
}

.product-number {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-gold);
    display: block;
    margin-bottom: var(--space-xs);
}

.product-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--color-white);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--space-2xl) var(--space-lg) var(--space-lg);
    background-color: var(--color-bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--color-white);
}

.footer-tagline {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-white-muted);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-link {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-white-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-white);
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social-link {
    color: var(--color-white-muted);
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.footer-social-link:hover {
    color: var(--color-white);
    transform: translateY(-2px);
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: var(--space-md);
    text-align: center;
}

.footer-bottom span {
    font-family: var(--font-body);
    font-size: 0.65rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    color: var(--color-white-subtle);
}

/* ============================================
   Scroll Reveal Animations
   ============================================ */
[data-reveal] {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--transition-luxury),
                transform 0.8s var(--transition-luxury);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for grouped elements */
[data-reveal]:nth-child(1) { transition-delay: 0s; }
[data-reveal]:nth-child(2) { transition-delay: 0.1s; }
[data-reveal]:nth-child(3) { transition-delay: 0.2s; }
[data-reveal]:nth-child(4) { transition-delay: 0.3s; }
[data-reveal]:nth-child(5) { transition-delay: 0.4s; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .feature-container {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .feature-visual {
        position: relative;
        top: 0;
        height: 50vh;
        order: -1;
    }
    
    .collection-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nav-links {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 2rem;
        --space-xl: 4rem;
        --space-2xl: 6rem;
    }
    
    .nav {
        padding: var(--space-sm) var(--space-md);
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 12vw, 5rem);
    }
    
    .collection-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        gap: var(--space-lg);
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-md);
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}