/* ==========================================
   LUMINET - Premium eCommerce Platform
   Modern Dark Theme with Animations
   ========================================== */

/* CSS Variables */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-card: #16162a;
    --bg-card-hover: #1e1e3a;
    
    --text-primary: #ffffff;
    --text-secondary: #b4b4c4;
    --text-muted: #6b6b7b;
    
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #a855f7;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.15);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

.loader-content {
    text-align: center;
}

.lightning-container {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

.lightning-icon {
    width: 80px;
    height: 80px;
    color: var(--accent-primary);
    animation: pulse-glow 2s ease-in-out infinite;
}

.lightning-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
    animation: glow-pulse 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.6)); }
    50% { transform: scale(1.1); filter: drop-shadow(0 0 40px rgba(99, 102, 241, 0.9)); }
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

.loader-text {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.dots::after {
    content: '';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

.progress-bar {
    width: 200px;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
    margin: 0 auto;
}

.progress-fill {
    height: 100%;
    background: var(--accent-gradient);
    animation: progress 2s ease-in-out forwards;
}

@keyframes progress {
    0% { width: 0; }
    100% { width: 100%; }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: transform var(--transition-normal), background var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.98);
}

.nav-container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
}

.brand-icon {
    font-size: 2rem;
    animation: lightning-flash 3s ease-in-out infinite;
}

@keyframes lightning-flash {
    0%, 90%, 100% { opacity: 1; }
    95% { opacity: 0.3; }
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    position: relative;
    padding: 10px 20px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link:hover::before,
.nav-link.active::before {
    width: 60%;
}

.nav-link.active {
    color: var(--text-primary);
}

.nav-cart {
    position: relative;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.nav-cart:hover {
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.nav-cart svg {
    width: 20px;
    height: 20px;
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--accent-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast);
}

.cart-count.bump {
    animation: bump 0.3s ease;
}

@keyframes bump {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    padding: 20px;
    flex-direction: column;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.mobile-link {
    padding: 15px 20px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Main Content */
.main-content {
    padding-top: 70px;
    min-height: 100vh;
}

.page {
    animation: fadeIn 0.5s ease;
}

.page.hidden {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: calc(100vh - 70px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 24px;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    top: -20px;
    width: 8px;
    height: 8px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    opacity: 0;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    animation: fall linear infinite;
}

.particle.small {
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.5);
}

.particle.large {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

@keyframes fall {
    0% {
        transform: translateY(-20px) rotate(0deg);
        opacity: 0;
    }
    5% {
        opacity: 1;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        transform: translateY(calc(100vh + 20px)) rotate(360deg);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 800px;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #b4b4c4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    animation: slideUp 0.8s ease forwards;
    opacity: 0;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: slideUp 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    animation: slideUp 0.8s ease 0.4s forwards;
    opacity: 0;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    animation: slideUp 0.8s ease 0.6s forwards;
    opacity: 0;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.cta-button svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.cta-button:hover svg {
    transform: translateX(5px);
}

.hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

/* Features Section */
.features-section {
    padding: 80px 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    background: linear-gradient(135deg, #fff 0%, #b4b4c4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    position: relative;
    padding: 30px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-5px);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke: white;
    fill: none;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Page Headers */
.page-header {
    text-align: center;
    padding: 60px 24px 40px;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Shop Layout */
.shop-layout {
    display: flex;
    gap: 30px;
    padding: 0 24px 60px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Category Sidebar */
.category-sidebar {
    flex-shrink: 0;
    width: 220px;
    position: sticky;
    top: 100px;
    height: fit-content;
}

.category-sidebar.hidden {
    display: none;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.category-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-item {
    margin-bottom: 8px;
}

.category-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.category-btn.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.category-btn .count {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    flex: 1;
}

.product-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
}

.product-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.product-placeholder {
    width: 80px;
    height: 80px;
    color: var(--text-muted);
}

.product-info {
    padding: 20px;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.product-stock {
    display: inline-block;
    padding: 4px 12px;
    margin-top: 10px;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 20px;
}

.product-stock.in-stock {
    background: rgba(34, 197, 94, 0.2);
    color: var(--success);
}

.product-stock.limited {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.product-stock.out-of-stock {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-close:hover {
    background: var(--bg-card-hover);
    transform: rotate(90deg);
}

.modal-close svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
}

/* Product Modal */
.product-modal-content {
    width: 800px;
    padding: 40px;
}

.product-modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.product-modal-image {
    aspect-ratio: 1;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-modal-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-modal-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.product-modal-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.product-modal-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 15px;
}

.product-modal-stock {
    margin-bottom: 25px;
}

.quantity-selector {
    margin-bottom: 25px;
}

.quantity-selector label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
}

.quantity-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.quantity-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.quantity-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.quantity-input {
    width: 80px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1.1rem;
    text-align: center;
    appearance: textfield;
    -moz-appearance: textfield;
}

.quantity-input::-webkit-outer-spin-button,
.quantity-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    appearance: none;
}

.add-to-cart-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 12px;
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.add-to-cart-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.add-to-cart-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.add-to-cart-btn svg {
    width: 18px;
    height: 18px;
}

/* Discount Section */
.discount-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.discount-section label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.discount-input-group {
    display: flex;
    gap: 8px;
}

.discount-input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    text-transform: uppercase;
    transition: all var(--transition-fast);
}

.discount-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.discount-input::placeholder {
    text-transform: none;
    color: var(--text-muted);
}

.discount-apply-btn {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.discount-apply-btn:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.discount-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
}

.discount-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid var(--success);
    border-radius: var(--radius-md);
    color: var(--success);
    font-size: 0.9rem;
    font-weight: 500;
}

.discount-remove-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.discount-remove-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: var(--error);
}

.discount-error {
    margin-top: 8px;
    padding: 8px 12px;
    background: rgba(239, 68, 68, 0.1);
    border-radius: var(--radius-sm);
    color: var(--error);
    font-size: 0.85rem;
}

/* Purchase Section */
.purchase-section {
    margin-top: 20px;
}

.purchase-price {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.original-price {
    font-size: 1.1rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.final-price {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.purchase-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-bottom: 10px;
}

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

.purchase-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.purchase-btn svg {
    width: 22px;
    height: 22px;
}

/* Cart Modal */
.cart-modal-content {
    width: 500px;
    padding: 30px;
}

.cart-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    padding-right: 50px;
}

.cart-items {
    max-height: 400px;
    overflow-y: auto;
}

.cart-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.cart-item-image {
    width: 60px;
    height: 60px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: 5px;
}

.cart-item-price {
    color: var(--accent-primary);
    font-weight: 500;
}

.cart-item-quantity {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cart-item-quantity button {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cart-item-quantity button:hover {
    background: var(--accent-primary);
}

.cart-item-remove {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--error);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cart-item-remove:hover {
    background: rgba(239, 68, 68, 0.2);
}

.cart-empty {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.cart-empty svg {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
    opacity: 0.5;
}

.cart-footer {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.checkout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    background: var(--accent-gradient);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.checkout-btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.checkout-btn:hover svg {
    transform: translateX(5px);
}

/* Payment Modal */
.payment-modal-content {
    width: 500px;
    padding: 40px;
    text-align: center;
}

.payment-processing {
    padding: 60px 0;
}

.payment-spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.payment-header {
    margin-bottom: 25px;
}

.ltc-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, #345d9d 0%, #4a7bbc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-soft 2s ease-in-out infinite;
}

@keyframes pulse-soft {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.ltc-icon svg {
    width: 36px;
    height: 36px;
    color: white;
}

.payment-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.payment-warning {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: 25px;
    text-align: left;
}

.payment-warning svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--warning);
}

.payment-warning span {
    font-size: 0.9rem;
    color: var(--warning);
}

.payment-info-notice {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: 25px;
    text-align: left;
}

.payment-info-notice svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
}

.payment-info-notice span {
    font-size: 0.9rem;
    color: var(--accent-primary);
}

.download-warning {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--radius-md);
    margin: 20px 0;
    text-align: left;
}

.download-warning svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--warning);
}

.download-warning span {
    font-size: 0.9rem;
    color: var(--warning);
}

.payment-qr {
    margin-bottom: 25px;
}

.payment-qr img {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-lg);
    border: 3px solid var(--accent-primary);
    animation: qr-glow 2s ease-in-out infinite;
}

@keyframes qr-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.3); }
    50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.6); }
}

.payment-amount {
    margin-bottom: 25px;
}

.amount-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.amount-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.ltc-symbol {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-left: 5px;
}

.amount-usd {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-top: 5px;
}

.payment-address {
    margin-bottom: 25px;
}

.address-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.address-box {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.address-value {
    flex: 1;
    font-family: monospace;
    font-size: 0.9rem;
    word-break: break-all;
    text-align: left;
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--accent-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: var(--accent-secondary);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
}

.payment-timer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 25px;
    font-weight: 500;
}

.payment-timer svg {
    width: 18px;
    height: 18px;
    color: var(--accent-primary);
}

#payment-timer {
    color: var(--accent-primary);
    font-family: monospace;
}

.payment-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 15px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 25px;
}

.status-icon {
    position: relative;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.status-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent-primary);
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    animation: pulse-ring 1.5s ease-out infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(2); opacity: 0; }
}

.cancel-payment-btn {
    padding: 12px 24px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cancel-payment-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--error);
    color: var(--error);
}

/* Payment Success */
.payment-success {
    padding: 40px 0;
}

.success-animation {
    margin-bottom: 25px;
}

.checkmark {
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.checkmark-circle {
    stroke: var(--success);
    stroke-width: 2;
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
    stroke: var(--success);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 48;
    stroke-dashoffset: 48;
    animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}

@keyframes stroke {
    100% { stroke-dashoffset: 0; }
}

.payment-success h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--success);
    margin-bottom: 10px;
}

.payment-success p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.order-id {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 25px;
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    background: var(--success);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    margin-bottom: 15px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(34, 197, 94, 0.4);
}

.download-btn svg {
    width: 20px;
    height: 20px;
}

.continue-shopping-btn {
    padding: 12px 24px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.continue-shopping-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Payment Error */
.payment-error {
    padding: 40px 0;
}

.error-animation {
    margin-bottom: 25px;
}

.error-animation svg {
    width: 80px;
    height: 80px;
    margin: 0 auto;
}

.error-circle {
    stroke: var(--error);
    stroke-width: 2;
    stroke-dasharray: 166;
    stroke-dashoffset: 166;
    animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.error-x {
    stroke: var(--error);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 80;
    stroke-dashoffset: 80;
    animation: stroke 0.4s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}

.payment-error h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--error);
    margin-bottom: 10px;
}

#error-message {
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.try-again-btn {
    padding: 15px 30px;
    background: var(--error);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.try-again-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.4);
}

/* FAQ Styles */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

.faq-item {
    margin-bottom: 15px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--border-hover);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 25px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-card-hover);
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.faq-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer > div,
.faq-answer > p {
    overflow: hidden;
}

.faq-item.active .faq-answer {
    grid-template-rows: 1fr;
}

.faq-answer p {
    padding: 0 25px 0;
    color: var(--text-secondary);
    line-height: 1.7;
    transition: padding 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item.active .faq-answer p {
    padding: 0 25px 20px;
}

/* Socials Styles */
.socials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

.social-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 25px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.social-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
}

.social-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

.toast.hiding {
    animation: slideOutRight 0.3s ease forwards;
}

@keyframes slideOutRight {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
}

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--error);
}

.toast.info {
    border-left: 4px solid var(--accent-primary);
}

.toast-icon {
    width: 24px;
    height: 24px;
}

.toast.success .toast-icon {
    color: var(--success);
}

.toast.error .toast-icon {
    color: var(--error);
}

.toast.info .toast-icon {
    color: var(--accent-primary);
}

.toast-message {
    font-weight: 500;
}

/* Hidden utility class */
.hidden {
    display: none !important;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .shop-layout {
        flex-direction: column;
        gap: 20px;
        padding: 0 16px 40px;
    }
    
    .category-sidebar {
        width: 100%;
        position: relative;
        top: 0;
    }
    
    .category-list {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .category-item {
        margin: 0;
        flex: 1 1 auto;
    }
    
    .category-btn {
        padding: 10px 14px;
        font-size: 0.85rem;
        justify-content: center;
    }
    
    .category-btn .count {
        display: none;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .product-modal-content {
        width: 95%;
        padding: 20px;
    }
    
    .product-modal-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cart-modal-content,
    .payment-modal-content {
        width: 95%;
        padding: 20px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }
    
    .product-modal-info {
        padding: 0;
    }
    
    .discount-input-group {
        flex-direction: column;
    }
    
    .discount-apply-btn {
        width: 100%;
    }
    
    .cart-item {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .cart-item-info {
        flex: 1 1 100%;
    }
    
    .address-box {
        flex-direction: column;
        gap: 10px;
    }
    
    .address-value {
        word-break: break-all;
        font-size: 0.85rem;
    }
    
    .copy-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .payment-qr img {
        width: 160px;
        height: 160px;
    }
    
    .amount-value {
        font-size: 1.5rem;
    }
    
    .product-card {
        padding: 12px;
    }
    
    .product-name {
        font-size: 0.95rem;
    }
    
    .product-price {
        font-size: 1.1rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .page-header {
        padding: 30px 15px;
    }
    
    .page-title {
        font-size: 1.8rem;
    }
    
    .faq-question h3 {
        font-size: 0.95rem;
    }
    
    .social-card {
        padding: 20px 15px;
    }
    
    .purchase-btn,
    .checkout-btn {
        padding: 14px;
        font-size: 1rem;
    }
    
    .quantity-selector {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .payment-warning {
        font-size: 0.85rem;
        flex-direction: column;
        text-align: center;
    }
    
    .payment-timer {
        font-size: 0.9rem;
    }
}