/* Enhanced Product Card Layout - CSS Implementation */

/* ===== MICROSOFT FLUENT DESIGN PRINCIPLES ===== */
/* NO BORDERS - Use gradients, shadows, and color contrast instead */

/* CSS Custom Properties - Microsoft Fluent Design Tokens */
:root {
    --fluent-primary-blue: #0078D4;
    --fluent-primary-blue-hover: #106EBE;
    --fluent-secondary-blue: #40E0FF;
    --fluent-accent-blue: #005A9E;
    --fluent-surface-primary: #FFFFFF;
    --fluent-surface-secondary: #F3F2F1;
    --fluent-surface-tertiary: #EDEBE9;
    --fluent-text-primary: #323130;
    --fluent-text-secondary: #605E5C;
    --fluent-text-tertiary: #8A8886;
    --fluent-shadow-depth-4: 0 1.6px 3.6px rgba(0, 0, 0, 0.132), 0 0.3px 0.9px rgba(0, 0, 0, 0.108);
    --fluent-shadow-depth-8: 0 3.2px 7.2px rgba(0, 0, 0, 0.132), 0 0.6px 1.8px rgba(0, 0, 0, 0.108);
    --fluent-shadow-depth-16: 0 6.4px 14.4px rgba(0, 0, 0, 0.132), 0 1.2px 3.6px rgba(0, 0, 0, 0.108);
    --fluent-corner-radius-medium: 8px;
    --fluent-corner-radius-large: 12px;
    --fluent-gradient-primary: linear-gradient(135deg, #0078D4 0%, #40E0FF 100%);
    --fluent-gradient-accent: linear-gradient(135deg, #005A9E 0%, #0078D4 100%);
    --fluent-gradient-surface: linear-gradient(135deg, #F3F2F1 0%, #FFFFFF 100%);
}

/* Container and Layout */
.enhanced-product-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--fluent-surface-primary);
}

/* Main Product Card */
.enhanced-product-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 32px;
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--fluent-surface-primary);
    border-radius: var(--fluent-corner-radius-large);
    box-shadow: var(--fluent-shadow-depth-8);
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

/* Product Header Section */
.product-header {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    margin-bottom: 32px;
}

/* Product Image Container - Microsoft Store Style */
.product-image-container {
    position: relative;
    background: var(--fluent-gradient-surface);
    border-radius: var(--fluent-corner-radius-large);
    padding: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    overflow: hidden;
    box-shadow: var(--fluent-shadow-depth-4);
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.product-image-container:hover {
    transform: translateY(-2px);
    box-shadow: var(--fluent-shadow-depth-16);
}

.product-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--fluent-corner-radius-medium);
}

/* Microsoft Badge */
.microsoft-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--fluent-gradient-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--fluent-shadow-depth-4);
}

/* Product Info Section */
.product-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.product-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--fluent-text-primary);
    line-height: 1.2;
    margin: 0;
}

.product-description {
    font-size: 16px;
    color: var(--fluent-text-secondary);
    line-height: 1.5;
    margin: 0;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 12px;
}

.stars {
    color: #FFB900;
    font-size: 18px;
}

.rating-text {
    font-size: 14px;
    color: var(--fluent-text-tertiary);
}

/* License Selector - Modern Infographic Style */
.license-selector {
    margin: 32px 0;
}

.license-selector h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--fluent-text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.license-selector h3::before {
    content: "🎯";
    font-size: 24px;
}

.license-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.license-option {
    background: var(--fluent-gradient-surface);
    border-radius: var(--fluent-corner-radius-large);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--fluent-shadow-depth-4);
}

.license-option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--fluent-gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.license-option:hover {
    transform: translateY(-4px);
    box-shadow: var(--fluent-shadow-depth-16);
}

.license-option:hover::before {
    transform: scaleX(1);
}

.license-option.selected {
    background: var(--fluent-gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--fluent-shadow-depth-16);
}

.license-option.selected::before {
    transform: scaleX(1);
    background: rgba(255, 255, 255, 0.3);
}

.license-icon {
    font-size: 32px;
    margin-bottom: 12px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.license-option.phone-activation .license-icon::before { content: "📱"; }
.license-option.online-key .license-icon::before { content: "⚡"; }
.license-option.bind-license .license-icon::before { content: "🔗"; }

.license-name {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.license-description {
    font-size: 12px;
    opacity: 0.8;
    margin-bottom: 12px;
}

.license-price {
    font-size: 18px;
    font-weight: 700;
}

/* Add to Cart Button - Microsoft Store Style */
.add-to-cart-container {
    margin: 32px 0;
}

.add-to-cart-btn {
    background: var(--fluent-gradient-primary);
    color: white;
    border: none;
    border-radius: var(--fluent-corner-radius-medium);
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    width: 100%;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--fluent-shadow-depth-8);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.add-to-cart-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.add-to-cart-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--fluent-shadow-depth-16);
    background: var(--fluent-gradient-accent);
}

.add-to-cart-btn:hover::before {
    left: 100%;
}

.add-to-cart-btn:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 18px;
}

/* Trust Indicators */
.trust-indicators {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin: 24px 0;
    font-size: 14px;
    color: var(--fluent-text-secondary);
}

.trust-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.trust-indicator::before {
    font-size: 16px;
}

.trust-indicator:nth-child(1)::before { content: "🚀"; }
.trust-indicator:nth-child(2)::before { content: "✅"; }
.trust-indicator:nth-child(3)::before { content: "💰"; }

/* Specifications Section */
.specifications {
    margin: 40px 0;
}

.specifications h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--fluent-text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.specifications h3::before {
    content: "📋";
    font-size: 24px;
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.spec-item {
    background: var(--fluent-gradient-surface);
    border-radius: var(--fluent-corner-radius-medium);
    padding: 20px;
    box-shadow: var(--fluent-shadow-depth-4);
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.spec-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--fluent-shadow-depth-8);
}

.spec-label {
    font-size: 14px;
    color: var(--fluent-text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.spec-value {
    font-size: 16px;
    color: var(--fluent-text-primary);
    font-weight: 500;
}

/* Recommendations Section */
.recommendations {
    margin: 48px 0;
}

.recommendations h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--fluent-text-primary);
    margin-bottom: 32px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.recommendations h3::before {
    content: "💡";
    font-size: 28px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

/* Enhanced Product Cards in Recommendations */
.product-card {
    background: var(--fluent-surface-primary);
    border-radius: var(--fluent-corner-radius-large);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    box-shadow: var(--fluent-shadow-depth-4);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--fluent-gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--fluent-shadow-depth-16);
}

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

.product-card-image {
    height: 180px;
    background: var(--fluent-gradient-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-card-image img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    transition: transform 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

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

.product-card-content {
    padding: 20px;
}

.product-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--fluent-text-primary);
    margin-bottom: 8px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--fluent-primary-blue);
    margin-bottom: 16px;
}

.product-card-rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.product-card-rating .stars {
    color: #FFB900;
    font-size: 14px;
}

.product-card-rating .rating-text {
    font-size: 12px;
    color: var(--fluent-text-tertiary);
}

.view-details-btn {
    background: transparent;
    color: var(--fluent-primary-blue);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    padding: 8px 16px;
    border-radius: var(--fluent-corner-radius-medium);
}

.view-details-btn:hover {
    background: var(--fluent-surface-secondary);
    transform: translateX(4px);
}

.view-details-btn::after {
    content: "→";
    transition: transform 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.view-details-btn:hover::after {
    transform: translateX(4px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .enhanced-product-card {
        padding: 20px;
    }
    
    .product-header {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .product-image-container {
        height: 300px;
    }
    
    .product-title {
        font-size: 24px;
    }
    
    .license-options {
        grid-template-columns: 1fr;
    }
    
    .spec-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .enhanced-product-card {
        padding: 16px;
    }
    
    .product-title {
        font-size: 20px;
    }
    
    .trust-indicators {
        flex-direction: column;
        gap: 12px;
    }
}

/* Loading States */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --fluent-surface-primary: #1E1E1E;
        --fluent-surface-secondary: #2D2D2D;
        --fluent-surface-tertiary: #404040;
        --fluent-text-primary: #FFFFFF;
        --fluent-text-secondary: #D1D1D1;
        --fluent-text-tertiary: #B3B3B3;
        --fluent-gradient-surface: linear-gradient(135deg, #2D2D2D 0%, #1E1E1E 100%);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus States */
.license-option:focus,
.add-to-cart-btn:focus,
.view-details-btn:focus {
    outline: 2px solid var(--fluent-primary-blue);
    outline-offset: 2px;
}

/* Enhanced Product Card Layout - CSS Implementation */

/* CSS Custom Properties (Design Tokens) */
:root {
    --primary-blue: #0078D4;
    --primary-blue-hover: #106ebe;
    --primary-blue-pressed: #005a9e;
    --background-white: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-accent: #0078D4;
    --border-light: #e5e7eb;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.14);
    --radius-md: 0.75rem;
    --radius-sm: 0.5rem;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --transition-standard: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* Container and Layout */
.enhanced-product-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    font-family: var(--font-family);
    background: var(--background-white);
}

/* Main Product Card */
.enhanced-product-card {
    display: grid;
    grid-template-columns: 500px 1fr;
    gap: 3rem;
    background: var(--background-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    margin-bottom: 3rem;
}

/* Enhanced Product Image Section */
.enhanced-image-section {
    position: relative;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    padding: 2rem;
    overflow: hidden;
}

.enhanced-product-image {
    max-width: 100%;
    max-height: 350px;
    object-fit: contain;
    transition: transform var(--transition-slow);
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.1));
}

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

.partner-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--primary-blue);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
    z-index: 2;
}

/* Product Info Section */
.enhanced-info-section {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.enhanced-product-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin: 0;
    letter-spacing: -0.01em;
}

.enhanced-product-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.enhanced-rating {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.rating-stars {
    display: flex;
    gap: 0.25rem;
    color: #fbbf24;
}

.rating-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Enhanced License Selector - Modern Design Without Borders */
.enhanced-license-selector {
    background: transparent;
    padding: 1.5rem 0;
    margin-top: 1rem;
}

.license-selector-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
    justify-content: center;
}

.license-selector-title i {
    background: linear-gradient(135deg, #0078D4, #50E6FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.5rem;
}

.license-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.license-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 1rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    text-align: center;
    min-height: 140px;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.license-option input[type="radio"] {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    cursor: pointer;
}

.license-option:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 120, 212, 0.15);
    background: linear-gradient(135deg, #ffffff 0%, #f8fcff 100%);
}

.license-option.selected,
.license-option:has(input:checked) {
    background: linear-gradient(135deg, #0078D4, #50E6FF);
    color: white;
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 120, 212, 0.3);
}

.license-option.selected .license-option-title,
.license-option:has(input:checked) .license-option-title {
    color: white;
}

.license-option.selected .license-option-desc,
.license-option:has(input:checked) .license-option-desc {
    color: rgba(255, 255, 255, 0.9);
}

.license-option.selected .license-option-price,
.license-option:has(input:checked) .license-option-price {
    color: white;
    font-weight: 800;
}

.license-option-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, #0078D4, #50E6FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.license-option.selected .license-option-icon,
.license-option:has(input:checked) .license-option-icon {
    -webkit-text-fill-color: white;
    transform: scale(1.1);
}

.license-option-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.license-option-title {
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
}

.license-option-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.3;
    font-weight: 500;
}

.license-option-price {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-top: 0.75rem;
    letter-spacing: -0.02em;
}

/* Remove all border-based radio styling */
.license-option input[type="radio"]::before {
    display: none;
}

/* Design Rule: NO BORDERS Policy */
/* 
DESIGN RULE: Avoid using borders and frames in modern UI design
- Use shadows, gradients, and color contrast instead
- Borders make design look outdated and cluttered
- Modern design relies on whitespace and subtle shadows
- Color and elevation create better visual hierarchy
*/

/* Enhanced Add to Cart Button */
.enhanced-add-to-cart {
    width: 100%;
    padding: 1rem 2rem;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-standard);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
    box-shadow: var(--shadow-md);
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.enhanced-add-to-cart::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.enhanced-add-to-cart:hover {
    background: var(--primary-blue-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.enhanced-add-to-cart:hover::before {
    left: 100%;
}

.enhanced-add-to-cart:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
    background: var(--primary-blue-pressed);
}

.enhanced-add-to-cart:disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

/* Trust Indicators */
.trust-indicators {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.trust-indicator {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.trust-indicator i {
    color: #10b981;
    font-size: 1rem;
}

/* Specifications Section - Modern Design Without Borders */
.enhanced-specs-section {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.specs-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    text-align: center;
}

.specs-title i {
    background: linear-gradient(135deg, #0078D4, #50E6FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.75rem;
}

.specs-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 0.5rem;
}

.specs-table td {
    padding: 1rem 1.5rem;
    background: white;
    vertical-align: top;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.specs-table td:first-child {
    font-weight: 600;
    color: var(--primary-blue);
    width: 200px;
    border-radius: 0.5rem 0 0 0.5rem;
    background: linear-gradient(135deg, #f8fcff 0%, #eff6ff 100%);
}

.specs-table td:last-child {
    color: var(--text-primary);
    border-radius: 0 0.5rem 0.5rem 0;
    font-weight: 500;
}

/* You Might Also Like Section */
.enhanced-recommendations {
    margin-top: 3rem;
    width: 100%;
    clear: both;
}

.recommendations-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.01em;
}

.recommendations-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: center;
    margin: 0 0 2rem 0;
}

/* Use Catalog Product Grid Styles */
.enhanced-recommendations .products-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)) !important;
    gap: 1.5rem !important;
}

.enhanced-recommendations .product-card {
    background: white !important;
    border-radius: 0.75rem !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1) !important;
    transition: all 0.3s ease !important;
    overflow: hidden !important;
    height: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    border: 1px solid #e5e7eb !important;
    cursor: pointer !important;
    position: relative !important;
}

.enhanced-recommendations .product-card:hover {
    transform: translateY(-4px) !important;
    box-shadow: 0 10px 25px rgba(0, 120, 212, 0.2) !important;
    border-color: #0078D4 !important;
}

.enhanced-recommendations .product-card::after {
    content: "View Details" !important;
    position: absolute !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    background-color: #0078D4 !important;
    color: white !important;
    text-align: center !important;
    font-weight: 500 !important;
    font-size: 0.9rem !important;
    padding: 0.75rem !important;
    transform: translateY(100%) !important;
    transition: transform 0.3s ease !important;
}

.enhanced-recommendations .product-card:hover::after {
    transform: translateY(0) !important;
}

.enhanced-recommendations .product-image {
    height: 240px !important;
    background: #f9fafb !important;
    position: relative !important;
    overflow: hidden !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background-color: #ffffff !important;
}

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

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

.enhanced-recommendations .product-logo {
    font-size: 4rem !important;
    color: #0078D4 !important;
}

.enhanced-recommendations .product-info {
    padding: 1.25rem !important;
    display: flex !important;
    flex-direction: column !important;
    flex: 1 !important;
    min-height: 160px !important;
}

.enhanced-recommendations .product-title {
    font-size: 1rem !important;
    font-weight: 600 !important;
    color: #111827 !important;
    margin-bottom: 0.5rem !important;
    line-height: 1.3 !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
}

.enhanced-recommendations .product-description {
    font-size: 0.875rem !important;
    color: #1f2937 !important;
    line-height: 1.5 !important;
    margin-bottom: 1rem !important;
    flex: 1 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 3 !important;
    line-clamp: 3 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

.enhanced-recommendations .product-footer {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-top: auto !important;
    padding-top: 1rem !important;
    border-top: 1px solid #e5e7eb !important;
    margin-bottom: 2rem !important;
}

.enhanced-recommendations .product-price {
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    color: #0078D4 !important;
}

.enhanced-recommendations .product-rating {
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    font-size: 0.875rem !important;
    color: #6b7280 !important;
}

.enhanced-recommendations .product-rating .stars {
    color: #f59e0b !important;
}

.enhanced-recommendations .catalog-add-to-cart-btn {
    position: absolute !important;
    bottom: 0.75rem !important;
    left: 1.25rem !important;
    right: 1.25rem !important;
    background: #0078D4 !important;
    color: white !important;
    border: none !important;
    border-radius: 0.5rem !important;
    padding: 0.75rem 1rem !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.5rem !important;
    z-index: 10 !important;
}

.enhanced-recommendations .catalog-add-to-cart-btn:hover {
    background: #106ebe !important;
    transform: translateY(-1px) !important;
}

.recommendation-card {
    background: var(--background-white) !important;
    border: 1px solid var(--border-light) !important;
    border-radius: var(--radius-md) !important;
    padding: 1.5rem !important;
    cursor: pointer !important;
    transition: all var(--transition-slow) !important;
    overflow: hidden !important;
    position: relative !important;
    width: 100% !important;
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: column !important;
    min-height: 450px !important;
}

.recommendation-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.rec-image {
    height: 150px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%) !important;
    border-radius: var(--radius-sm) !important;
    margin-bottom: 1rem !important;
    position: relative !important;
    overflow: hidden !important;
    flex-shrink: 0 !important;
}

.rec-image img {
    max-width: 100% !important;
    max-height: 120px !important;
    object-fit: contain !important;
    transition: transform var(--transition-slow) !important;
}

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

.rec-image i {
    font-size: 3rem !important;
    color: var(--primary-blue) !important;
    opacity: 0.7 !important;
}

.rec-title {
    font-size: 1.125rem !important;
    font-weight: 600 !important;
    color: var(--text-primary) !important;
    margin: 0 0 0.5rem 0 !important;
    line-height: 1.3 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    flex-grow: 0 !important;
    flex-shrink: 0 !important;
}

.rec-price {
    font-size: 1.25rem !important;
    font-weight: 700 !important;
    color: var(--primary-blue) !important;
    margin: 0.75rem 0 !important;
    flex-grow: 1 !important;
    display: flex !important;
    align-items: flex-end !important;
}

.rec-add-btn {
    width: 100% !important;
    padding: 0.75rem !important;
    background: var(--primary-blue) !important;
    color: white !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all var(--transition-standard) !important;
    font-family: inherit !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.5rem !important;
    margin-top: auto !important;
    flex-shrink: 0 !important;
}

.rec-add-btn:hover {
    background: var(--primary-blue-hover);
    transform: translateY(-1px);
}

.rec-add-btn:active {
    transform: translateY(0);
}

/* Microsoft Logo Styles */
.rec-header {
    margin-bottom: 1rem !important;
    padding-bottom: 0.75rem !important;
    border-bottom: 1px solid var(--border-light) !important;
}

.microsoft-logo {
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    font-size: 0.875rem !important;
    color: var(--text-secondary) !important;
    font-weight: 500 !important;
}

.microsoft-squares {
    display: inline-flex !important;
    flex-wrap: wrap !important;
    width: 16px !important;
    height: 16px !important;
    gap: 1px !important;
}

.microsoft-squares .square {
    width: 7px !important;
    height: 7px !important;
    display: block !important;
}

.microsoft-squares .square.red {
    background: #F25022 !important;
}

.microsoft-squares .square.green {
    background: #7FBA00 !important;
}

.microsoft-squares .square.blue {
    background: #00A4EF !important;
}

.microsoft-squares .square.yellow {
    background: #FFB900 !important;
}

/* Product Description */
.rec-description {
    font-size: 0.875rem !important;
    color: var(--text-secondary) !important;
    line-height: 1.4 !important;
    margin-bottom: 1rem !important;
    flex-grow: 0 !important;
    flex-shrink: 0 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
}

/* Professional Office Icon */
.office-icon {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    height: 100% !important;
}

.office-cube {
    width: 80px !important;
    height: 80px !important;
    position: relative !important;
    transform-style: preserve-3d !important;
    transform: rotateX(-10deg) rotateY(25deg) !important;
}

.cube-face {
    position: absolute !important;
    width: 80px !important;
    height: 80px !important;
    border: 2px solid #ccc !important;
    opacity: 0.9 !important;
}

.cube-face.front {
    background: linear-gradient(135deg, #FF6B35, #F7931E) !important;
    transform: rotateY(0deg) translateZ(40px) !important;
}

.cube-face.back {
    background: linear-gradient(135deg, #2E8B57, #3CB371) !important;
    transform: rotateY(180deg) translateZ(40px) !important;
}

.cube-face.right {
    background: linear-gradient(135deg, #4169E1, #6495ED) !important;
    transform: rotateY(90deg) translateZ(40px) !important;
}

.cube-face.left {
    background: linear-gradient(135deg, #DC143C, #FF69B4) !important;
    transform: rotateY(-90deg) translateZ(40px) !important;
}

.cube-face.top {
    background: linear-gradient(135deg, #FFD700, #FFA500) !important;
    transform: rotateX(90deg) translateZ(40px) !important;
}

.cube-face.bottom {
    background: linear-gradient(135deg, #8A2BE2, #9370DB) !important;
    transform: rotateX(-90deg) translateZ(40px) !important;
}

/* Star Rating */
.rec-rating {
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    margin-bottom: 0.75rem !important;
    flex-shrink: 0 !important;
}

.rec-rating .rating-stars {
    display: flex !important;
    gap: 0.125rem !important;
    color: #fbbf24 !important;
    font-size: 0.875rem !important;
}

.rec-rating .rating-value {
    font-size: 0.75rem !important;
    color: var(--text-secondary) !important;
    font-weight: 500 !important;
}

/* Action Buttons */
.rec-actions {
    display: flex !important;
    flex-direction: column !important;
    gap: 0.5rem !important;
    margin-top: auto !important;
    flex-shrink: 0 !important;
}

.rec-view-btn {
    width: 100% !important;
    padding: 0.75rem !important;
    background: var(--background-white) !important;
    color: var(--primary-blue) !important;
    border: 2px solid var(--primary-blue) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: all var(--transition-standard) !important;
    font-family: inherit !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 0.5rem !important;
    font-size: 0.875rem !important;
}

.rec-view-btn:hover {
    background: var(--primary-blue) !important;
    color: white !important;
    transform: translateY(-1px) !important;
}

/* Loading States */
.enhanced-add-to-cart.loading {
    background: #64748b;
    cursor: wait;
}

.enhanced-add-to-cart.success {
    background: #10b981;
}

.enhanced-add-to-cart.error {
    background: #ef4444;
}

.rec-add-btn.loading {
    background: #64748b;
    cursor: wait;
}

.rec-add-btn.success {
    background: #10b981;
}

.rec-add-btn.error {
    background: #ef4444;
}

/* Notification Styles */
.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 10000;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    color: white;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    max-width: 400px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.notification.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.notification.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.notification.show {
    transform: translateX(0);
}

/* Responsive Design */
@media (max-width: 992px) {
    .enhanced-product-card {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .enhanced-image-section {
        min-height: 300px;
    }
    
    .enhanced-product-image {
        max-height: 250px;
    }
    
    .recommendations-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
        gap: 1.5rem !important;
    }
}

@media (max-width: 1200px) {
    .recommendations-grid {
        grid-template-columns: repeat(3, 1fr) !important;
    }
}

@media (max-width: 900px) {
    .recommendations-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

@media (max-width: 768px) {
    .enhanced-product-container {
        padding: 1rem;
    }
    
    .enhanced-product-title {
        font-size: 1.5rem;
    }
    
    .enhanced-info-section {
        padding: 1.5rem;
    }
    
    .license-options {
        gap: 0.5rem;
    }
    
    .license-option {
        padding: 0.75rem;
    }
    
    .license-option-content {
        margin-left: 1.5rem;
    }
    
    .recommendations-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .specs-table td:first-child {
        width: 140px;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .enhanced-image-section {
        min-height: 200px;
        padding: 1rem;
    }
    
    .enhanced-info-section {
        padding: 1rem;
    }
    
    .enhanced-license-selector {
        padding: 1rem;
    }
    
    .license-selector-title {
        font-size: 1.125rem;
    }
    
    .license-option {
        padding: 0.75rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .license-option-content {
        margin-left: 1.5rem;
        order: 2;
    }
    
    .license-option-price {
        margin-left: 1.5rem;
        order: 3;
        padding-left: 0;
    }
    
    .recommendation-card {
        padding: 1rem;
    }
    
    .rec-image {
        height: 120px;
    }
    
    .trust-indicators {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .notification {
        top: 1rem;
        right: 1rem;
        left: 1rem;
        max-width: none;
    }
}

/* Accessibility */
.license-option:focus-within {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.enhanced-add-to-cart:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.rec-add-btn:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.recommendation-card:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-light: #666;
        --text-secondary: #333;
    }
    
    .license-option {
        border-width: 2px;
    }
    
    .enhanced-specs-section {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .enhanced-product-image:hover,
    .recommendation-card:hover,
    .enhanced-add-to-cart:hover,
    .rec-add-btn:hover {
        transform: none;
    }
    
    .rec-view-details {
        transition: none;
    }
    
    .enhanced-add-to-cart::before {
        display: none;
    }
    
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .enhanced-product-container {
        box-shadow: none;
        padding: 0;
    }
    
    .enhanced-product-card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .enhanced-add-to-cart,
    .rec-add-btn,
    .rec-view-details {
        display: none;
    }
    
    .recommendations-grid {
        display: none;
    }
}

/* Animation keyframes */
@keyframes pulse {
    0%, 100% { 
        transform: scale(1); 
    }
    50% { 
        transform: scale(1.1); 
    }
}

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

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

/* Product Card Styles - Simplified and Clean */
.product-card {
    background: var(--fluent-surface-primary);
    border-radius: 12px;
    box-shadow: var(--fluent-shadow-depth-4);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    width: 100%;
    max-width: 280px;
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 8px 25px rgba(0, 120, 212, 0.15);
}

.product-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

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

.product-card-content {
    padding: 1.5rem;
    text-align: center;
}

.product-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--fluent-text-primary);
    margin: 0 0 1rem 0;
    line-height: 1.4;
    min-height: 2.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--fluent-primary-blue);
    margin: 0 0 1.5rem 0;
}

.view-details-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--fluent-primary-blue) 0%, var(--fluent-accent-blue) 100%);
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    width: 100%;
}

.view-details-btn:hover {
    background: linear-gradient(135deg, var(--fluent-primary-blue-hover) 0%, var(--fluent-primary-blue) 100%);
    transform: translateY(-2px);
    color: white;
    text-decoration: none;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 1rem;
    }
    
    .product-card-content {
        padding: 1rem;
    }
    
    .product-card-title {
        font-size: 1rem;
        min-height: 2.4rem;
    }
    
    .product-card-price {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-card {
        max-width: 100%;
    }
}

/* Product Details Section - Microsoft Fluent Tabs Style */
.product-details {
    background: var(--fluent-surface-primary);
    border-radius: 16px;
    box-shadow: var(--fluent-shadow-depth-8);
    margin: 3rem 0;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.product-details h3 {
    background: linear-gradient(135deg, var(--fluent-primary-blue) 0%, var(--fluent-accent-blue) 100%);
    color: white;
    margin: 0;
    padding: 1.5rem 2rem;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    background: var(--fluent-surface-secondary);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.tab-navigation::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    background: none;
    border: none;
    padding: 1.25rem 2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--fluent-text-secondary);
    white-space: nowrap;
    position: relative;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    flex: 1;
    justify-content: center;
    min-width: 150px;
}

.tab-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--fluent-primary-blue);
    transform: scaleX(0);
    transition: transform 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    transform-origin: center;
}

.tab-btn:hover {
    background: var(--fluent-surface-primary);
    color: var(--fluent-primary-blue);
    transform: translateY(-2px);
}

.tab-btn.active {
    background: var(--fluent-surface-primary);
    color: var(--fluent-primary-blue);
    font-weight: 600;
}

.tab-btn.active::after {
    transform: scaleX(1);
}

.tab-btn i {
    font-size: 1.1rem;
}

/* Tab Content */
.tab-content {
    position: relative;
    min-height: 400px;
}

.tab-panel {
    display: none;
    padding: 2rem;
    animation: fadeInUp 0.4s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.tab-panel.active {
    display: block;
}

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

.content-card {
    background: var(--fluent-surface-primary);
    border-radius: 12px;
    padding: 1.5rem;
}

.content-card h4 {
    color: var(--fluent-text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 1.5rem 0;
    display: flex;
    align-items: center;
}

.content-card p {
    color: var(--fluent-text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Feature List */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    color: var(--fluent-text-secondary);
    border-bottom: 1px solid var(--fluent-surface-tertiary);
    transition: all 0.2s ease;
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li:hover {
    color: var(--fluent-primary-blue);
    transform: translateX(8px);
}

.feature-list li i {
    color: var(--fluent-primary-blue);
    font-size: 1rem;
    flex-shrink: 0;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--fluent-surface-secondary) 0%, var(--fluent-surface-primary) 100%);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.1, 0.9, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 120, 212, 0.1);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--fluent-primary-blue) 0%, var(--fluent-secondary-blue) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.2);
}

.feature-icon i {
    color: white;
    font-size: 1.25rem;
}

.feature-text h5 {
    color: var(--fluent-text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.feature-text p {
    color: var(--fluent-text-secondary);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.4;
}

/* Requirements Grid */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.requirement-category {
    background: var(--fluent-surface-secondary);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.requirement-category:hover {
    background: var(--fluent-surface-primary);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.requirement-category h5 {
    color: var(--fluent-text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.requirement-category h5 i {
    color: var(--fluent-primary-blue);
    font-size: 1.1rem;
}

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

.requirement-category li {
    color: var(--fluent-text-secondary);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--fluent-surface-tertiary);
    transition: color 0.2s ease;
}

.requirement-category li:last-child {
    border-bottom: none;
}

.requirement-category li:hover {
    color: var(--fluent-primary-blue);
}

/* Responsive Design */
@media (max-width: 768px) {
    .product-details h3 {
        padding: 1rem 1.5rem;
        font-size: 1.1rem;
    }
    
    .tab-btn {
        padding: 1rem 1.5rem;
        font-size: 0.9rem;
        min-width: 120px;
    }
    
    .tab-panel {
        padding: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-item {
        padding: 1rem;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .requirement-category {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .tab-navigation {
        flex-direction: column;
    }
    
    .tab-btn {
        min-width: 100%;
        justify-content: flex-start;
        padding: 1rem 1.5rem;
    }
    
    .tab-btn::after {
        left: 0;
        right: auto;
        width: 4px;
        height: 100%;
        top: 0;
        bottom: 0;
        transform: scaleY(0);
    }
    
    .tab-btn.active::after {
        transform: scaleY(1);
    }
}