/* =========================================
   VARIABLES & DESIGN TOKENS
   ========================================= */
:root {
    /* Color Palette - Light Mode (Default but we default body to dark below via JS or class) */
    --clr-bg: #f8f6f0; /* Soft premium cream */
    --clr-surface: rgba(255, 255, 255, 0.7);
    --clr-text: #1a2332;
    --clr-text-muted: #4a5568;
    
    --clr-primary: #0a192f; /* Deep Navy */
    --clr-accent: #d4af37; /* Metallic Gold */
    --clr-accent-glow: rgba(212, 175, 55, 0.4);
    
    /* Gradients */
    --gradient-gold: linear-gradient(135deg, #d4af37, #f3e5ab, #d4af37);
    --gradient-bg: linear-gradient(135deg, #f8f6f0 0%, #ffffff 100%);
    
    /* Typography */
    --font-heading: 'Outfit', 'Noto Sans Bengali', sans-serif;
    --font-body: 'Noto Sans Bengali', 'Inter', sans-serif;
    
    /* Spacing & Utilities */
    --transition-fast: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-slow: 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius: 12px;
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-glow: 0 0 20px var(--clr-accent-glow);
}

/* Dark Mode Palette */
.dark {
    --clr-bg: #060e1a; /* Very dark deep navy base */
    --clr-surface: rgba(10, 25, 47, 0.6); /* Glassmorphism surface */
    --clr-text: #f8f6f0;
    --clr-text-muted: #8892b0;
    
    --clr-primary: #d4af37;
    --clr-accent: #d4af37;
    
    --gradient-bg: linear-gradient(135deg, #060e1a 0%, #0a192f 100%);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* =========================================
   RESET & GLOBAL STYLES
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* =========================================
   UTILITY CLASSES & ANIMATIONS
   ========================================= */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 2rem;
    position: relative;
    z-index: 10;
}

.gradient-text {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: shine 5s linear infinite;
}

@keyframes shine {
    to {
        background-position: 200% center;
    }
}

.glass {
    background: var(--clr-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-soft);
    border-radius: var(--border-radius);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--clr-accent);
    color: #000;
}

.btn-primary::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0; top: 0;
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(100%);
    transition: transform var(--transition-fast);
    z-index: -1;
}

.btn-primary:hover::after {
    transform: translateY(0);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--clr-surface);
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--clr-accent);
    cursor: pointer;
    backdrop-filter: blur(5px);
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--clr-accent);
    color: #000;
    transform: scale(1.1);
}

/* Scroll Reveal */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Background Gradients & Particles */
.bg-gradient-anim {
    position: fixed;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(10,25,47,0.8) 0%, var(--clr-bg) 50%);
    z-index: -2;
    animation: rotateBg 30s linear infinite;
    opacity: 0.5;
    pointer-events: none;
}

.dark .bg-gradient-anim {
    background: radial-gradient(circle at center, rgba(212, 175, 55, 0.05) 0%, var(--clr-bg) 50%);
}

@keyframes rotateBg {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.particles {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    pointer-events: none;
    opacity: 0.3;
    background-image: radial-gradient(var(--clr-text-muted) 1px, transparent 1px);
    background-size: 30px 30px;
}

/* Floating Shapes */
.floating-shapes {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.shape {
    position: absolute;
    border: 1px solid var(--clr-accent-glow);
    border-radius: 50%;
    opacity: 0.5;
}

.shape-1 {
    width: 300px; height: 300px;
    top: -100px; right: -50px;
    animation: float 15s ease-in-out infinite;
}

.shape-2 {
    width: 150px; height: 150px;
    bottom: 20%; left: 5%;
    border-radius: 10px;
    transform: rotate(45deg);
    animation: float 20s ease-in-out infinite reverse;
}

.shape-3 {
    width: 200px; height: 200px;
    top: 40%; right: 10%;
    animation: float 25s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-40px) rotate(10deg); }
}

/* =========================================
   NAVIGATION
   ========================================= */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    padding: 1.5rem 0;
    z-index: 100;
    transition: all var(--transition-fast);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: var(--clr-surface);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--clr-accent);
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px; left: 0;
    width: 0; height: 2px;
    background: var(--clr-accent);
    transition: width var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

#theme-toggle {
    background: none;
    border: none;
    color: var(--clr-text);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

#theme-toggle:hover {
    color: var(--clr-accent);
}

.cart-icon {
    position: relative;
    cursor: pointer;
    font-size: 1.2rem;
}

.cart-count {
    position: absolute;
    top: -8px; right: -10px;
    background: var(--clr-accent);
    color: #000;
    font-size: 0.7rem;
    font-weight: bold;
    width: 18px; height: 18px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0 2rem;
}

.hero-content {
    max-width: 800px;
    z-index: 10;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s 0.2s forwards;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--clr-text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s 0.4s forwards;
}

.hero .btn {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 1s 0.6s forwards;
}

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

/* =========================================
   ABOUT SECTION
   ========================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--clr-text-muted);
    font-size: 1.1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.about-stats .stat-card:nth-child(3) {
    grid-column: span 2;
}

.stat-card {
    padding: 2rem;
    text-align: center;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
    border-color: var(--clr-accent-glow);
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--clr-accent);
    margin-bottom: 1rem;
}

.stat-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--clr-text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =========================================
   PRODUCT SECTION
   ========================================= */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
}

.section-header p {
    color: var(--clr-text-muted);
}

.filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--clr-text-muted);
    color: var(--clr-text);
    padding: 0.5rem 1.5rem;
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-heading);
    transition: all var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--clr-accent);
    color: #000;
    border-color: var(--clr-accent);
}

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

.product-card {
    overflow: hidden;
    position: relative;
    padding: 1rem;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.product-image {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 1rem;
    aspect-ratio: 4/5;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(10, 25, 47, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

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

.product-info h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
}

.price {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--clr-accent);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    background: transparent;
    border: 1px solid var(--clr-accent);
    color: var(--clr-accent);
}

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

/* =========================================
   TESTIMONIALS SECTION
   ========================================= */
.testimonials {
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial-card {
    min-width: 100%;
    padding: 3rem;
    text-align: center;
}

.stars {
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
}

.quote {
    font-size: 1.2rem;
    font-style: italic;
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.author {
    font-family: var(--font-heading);
    color: var(--clr-accent);
    font-weight: 500;
}

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

.dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--clr-surface);
    border: 1px solid var(--clr-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dot.active {
    background: var(--clr-accent);
    border-color: var(--clr-accent);
    transform: scale(1.2);
}

/* =========================================
   CONTACT SECTION
   ========================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info p {
    color: var(--clr-text-muted);
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-item .icon {
    width: 50px; height: 50px;
    background: var(--clr-surface);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--clr-accent);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 0.2rem;
}

.contact-item a {
    color: var(--clr-text-muted);
}

.contact-item a:hover {
    color: var(--clr-accent);
}

.contact-form-wrapper {
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-family: var(--font-heading);
    color: var(--clr-text-muted);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: var(--clr-text);
    font-family: var(--font-body);
    transition: all var(--transition-fast);
}

.dark .form-group input,
.dark .form-group textarea {
    background: rgba(255, 255, 255, 0.05);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-accent);
    box-shadow: 0 0 10px var(--clr-accent-glow);
}

.w-100 {
    width: 100%;
}

.form-success {
    display: none;
    background: rgba(46, 204, 113, 0.1);
    color: #2ecc71;
    padding: 1rem;
    border-radius: 6px;
    margin-top: 1rem;
    border: 1px solid rgba(46, 204, 113, 0.3);
    text-align: center;
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
    background: #060e1a;
    color: rgba(248, 246, 240, 0.7);
    padding: 4rem 2rem 2rem;
    position: relative;
}

.footer-separator {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--gradient-gold);
    opacity: 0.8;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    color: var(--clr-accent);
    font-size: 1.5rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social a {
    width: 40px; height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--clr-accent);
    color: #000;
    transform: translateY(-3px);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    font-size: 0.9rem;
}

/* =========================================
   RESPONSIVE DESIGN
   ========================================= */
@media (max-width: 992px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none; /* Add hamburger menu in real build */
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-container {
        padding: 4rem 1.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}