/* ========================================
   CSS Variables & Design System
======================================== */
:root {
    /* Colors */
    --primary: #ff6b9d;
    --primary-dark: #e05588;
    --primary-light: #ff8fb3;
    --secondary: #a855f7;
    --secondary-dark: #9333ea;
    --accent: #06b6d4;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #ff6b9d 0%, #a855f7 50%, #06b6d4 100%);
    --gradient-hero: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
    --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);

    /* Dark theme */
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #1e1e32;
    --bg-card-hover: #252542;

    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #b4b4c7;
    --text-muted: #6b6b80;

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(168, 85, 247, 0.4);

    /* Shadows */
    --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 30px rgba(168, 85, 247, 0.3);

    /* Spacing */
    --container-max: 1280px;
    --section-padding: 100px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   Language Switcher
======================================== */
.lang-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 8px;
    background: var(--bg-card);
    padding: 6px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.lang-btn {
    background: transparent;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

.lang-btn.active {
    background: var(--gradient-primary);
    color: white;
}

/* ========================================
   Header & Navigation
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 900;
    padding: 20px 0;
    background: rgba(15, 15, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-medium);
}

.nav-links a:hover {
    color: var(--text-primary);
}

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

/* ========================================
   Buttons
======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: var(--transition-medium);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(168, 85, 247, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(255, 107, 157, 0.1);
}

.btn-cart {
    padding: 10px 20px;
    font-size: 0.9rem;
    background: var(--gradient-primary);
    color: white;
}

.btn-cart:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

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

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

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(168, 85, 247, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 107, 157, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: var(--gradient-primary);
    opacity: 0.05;
    filter: blur(100px);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.05;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.08;
    }
}

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

.hero-badge {
    display: inline-block;
    padding: 10px 24px;
    background: rgba(168, 85, 247, 0.2);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--secondary);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s backwards;
}

.hero-title span {
    display: block;
}

.hero-title .highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
    animation: fadeInUp 0.6s ease 0.3s backwards;
}

.hero-features {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.feature-icon {
    font-size: 1.4rem;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* ========================================
   Section Styles
======================================== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(168, 85, 247, 0.15);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   Products Section
======================================== */
.products {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
    position: relative;
}

.products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to bottom, var(--bg-primary), transparent);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 1;
}

.product-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.product-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: linear-gradient(135deg, #ff6b9d20 0%, #a855f720 100%);
}

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

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

.product-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-medium);
}

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

.placeholder-icon {
    font-size: 5rem;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    background: var(--primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.product-badge.new {
    background: var(--secondary);
}

.product-badge.limited {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.product-actions {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transform: translateX(20px);
    transition: var(--transition-medium);
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateX(0);
}

.action-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--bg-card);
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn:hover {
    background: var(--primary);
    transform: scale(1.1);
}

.product-info {
    padding: 24px;
}

.product-category {
    font-size: 0.8rem;
    color: var(--secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 8px 0 12px;
    line-height: 1.4;
}

.product-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.5;
}

.product-meta {
    margin-bottom: 16px;
}

.product-code {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(6, 182, 212, 0.15);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--accent);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.product-price {
    display: flex;
    flex-direction: column;
}

.price-current {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
}

.price-old {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

/* ========================================
   About Section
======================================== */
.about {
    padding: var(--section-padding) 0;
    background: var(--bg-primary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content .section-badge {
    display: inline-block;
}

.about-content .section-title {
    text-align: left;
}

.about-text {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-features li {
    font-size: 1.05rem;
    color: var(--text-secondary);
    padding: 12px 16px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--primary);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.stat-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

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

/* ========================================
   Contact Section
======================================== */
.contact {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 30px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition-medium);
}

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

.contact-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.contact-card p {
    color: var(--text-secondary);
}

/* ========================================
   Footer
======================================== */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 350px;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========================================
   Responsive Design
======================================== */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .nav-links {
        display: none;
    }

    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

    .feature {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-brand {
        grid-column: span 1;
    }

    .footer-brand p {
        max-width: none;
    }

    .lang-switcher {
        top: auto;
        bottom: 20px;
        right: 50%;
        transform: translateX(50%);
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }
}