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

:root {
    /* Simple Elegant Theme */
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #6366f1;
    --accent-color: #8b5cf6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-card: #1f2937;
    --border-color: #374151;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header & Navigation */
header {
    background: var(--bg-secondary);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 900;
    color: #ffffff;
    cursor: pointer;
    letter-spacing: 2px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-family: 'Inter', monospace;
    text-shadow: 
        3px 0 0 rgba(0, 240, 255, 0.8),
        -3px 0 0 rgba(255, 0, 255, 0.8);
}

.logo h1:hover {
    opacity: 0.9;
}



/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
    border-bottom: 1px solid var(--border-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.hero-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Products Section */
.products-section {
    padding: 2rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.25rem;
}

/* Product Card */
.product-card {
    background: var(--bg-card);
    border-radius: 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    cursor: pointer;
}

.product-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.product-image {
    position: relative;
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: var(--bg-secondary);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.badge-hot,
.badge-new {
    background: var(--primary-color);
    padding: 0.25rem 0.5rem;
    border-radius: 0;
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
}

.product-info {
    padding: 1rem;
}

.product-category {
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.product-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.product-description {
    color: var(--text-secondary);
    font-size: 0.75rem;
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.product-footer {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.product-price {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary-color);
}


.btn-view {
    width: 100%;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-view:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

/* Product Detail Page */
.breadcrumb {
    background: var(--bg-secondary);
    padding: 0.75rem 0;
    font-size: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--text-secondary);
}

.product-detail {
    padding: 2rem 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.product-detail-image {
    position: sticky;
    top: 5rem;
    height: fit-content;
}

.main-image {
    background: var(--bg-card);
    border-radius: 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    max-height: 400px;
}

.main-image img {
    max-height: 400px;
    object-fit: contain;
}

.main-image img {
    width: 100%;
    height: auto;
    display: block;
}

.product-detail-info {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 0;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.product-detail-category {
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.product-detail-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.product-detail-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.stars {
    color: var(--warning-color);
    font-size: 0.875rem;
}

.rating-text {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.product-detail-price {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
}


.product-detail-description,
.product-detail-features {
    margin-bottom: 1.5rem;
}

.product-detail-description h3,
.product-detail-features h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.product-detail-description p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.875rem;
}

.product-detail-features ul {
    list-style: none;
    display: grid;
    gap: 0.5rem;
}

.product-detail-features li {
    color: var(--text-secondary);
    padding-left: 0.5rem;
    font-size: 0.875rem;
}

.product-detail-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.btn-demo,
.btn-contact-seller {
    flex: 1;
    display: block;
    padding: 0.75rem 1.5rem;
    border-radius: 0;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
    text-decoration: none;
}

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

.btn-demo:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-contact-seller {
    background: var(--primary-color);
    color: white;
}

.btn-contact-seller:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}


/* Related Products */
.related-products {
    padding: 2rem 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.related-products h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-primary);
}

/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 1.5rem 0;
}

.footer-bottom {
    text-align: center;
    padding: 0;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-detail-image {
        position: relative;
        top: 0;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    .hero-content p {
        font-size: 0.875rem;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }

    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .product-detail-actions {
        flex-direction: column;
    }

}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-name {
        font-size: 1.25rem;
    }

    .product-detail-price {
        font-size: 1.5rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-card);
    border-radius: 5px;
    border: 2px solid var(--bg-primary);
}

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

/* Selection */
::selection {
    background: var(--primary-color);
    color: white;
}