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

:root {
    --primary-color: #3B82F6;
    --primary-dark: #2563EB;
    --primary-light: #EFF6FF;
    --secondary-color: #64748B;
    --background-color: #F8FAFC;
    --surface-color: #FFFFFF;
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    --success-color: #10B981;
    --error-color: #EF4444;
    --warning-color: #F59E0B;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background-color: white;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--background-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    border-radius: var(--radius-lg);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

/* Header & Navigation */
.header {
    background-color: var(--surface-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: inherit;
}

.logo-icon {
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--radius-md);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
}

.logo-primary {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.logo-secondary {
    font-weight: 400;
    font-size: 0.875rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 1px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition);
    border-radius: 1px;
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    background: linear-gradient(135deg, #F0F9FF 0%, #EFF6FF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.hero-content {
    max-width: 600px;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #1E293B 0%, #3B82F6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.hero-visual {
    position: relative;
    z-index: 1;
}

.visual-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.grid-item {
    width: 100%;
    height: 180px;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.grid-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.grid-item:hover::before {
    opacity: 0.1;
}

.grid-item:nth-child(1) {
    transform: rotate(-5deg);
    background: linear-gradient(135deg, #93C5FD 0%, #3B82F6 100%);
}

.grid-item:nth-child(2) {
    transform: rotate(3deg);
    background: linear-gradient(135deg, #A5B4FC 0%, #6366F1 100%);
}

.grid-item:nth-child(3) {
    transform: rotate(2deg);
    background: linear-gradient(135deg, #FCA5A5 0%, #EF4444 100%);
}

.grid-item:nth-child(4) {
    transform: rotate(-3deg);
    background: linear-gradient(135deg, #86EFAC 0%, #10B981 100%);
}

/* Categories Section */
.categories {
    padding: 5rem 0;
    background-color: var(--surface-color);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.category-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

.category-filter {
    padding: 0.75rem 1.75rem;
    background: var(--surface-color);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    color: var(--text-secondary);
}

.category-filter:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.category-filter.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Products Section */
.products {
    padding: 5rem 0;
    background-color: var(--background-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background: var(--surface-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    border: 1px solid var(--border-light);
}

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

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.product-image-container {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, #F1F5F9 0%, #E2E8F0 100%);
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-content {
    padding: 1.75rem;
}

.category-tag {
    display: inline-block;
    padding: 0.375rem 1rem;
    background-color: var(--primary-light);
    color: var(--primary-color);
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.product-card h3 {
    font-size: 1.375rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.product-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

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

/* Product Details */
.product-details {
    padding: 6rem 0;
    min-height: calc(100vh - 200px);
    background-color: var(--background-color);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 3rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    background-color: var(--surface-color);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.back-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateX(-4px);
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    background: var(--surface-color);
    border-radius: var(--radius-xl);
    padding: 4rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.product-image-container {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #F1F5F9 0%, #E2E8F0 100%);
    position: relative;
    height: 500px;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-image:hover {
    transform: scale(1.02);
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.product-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.product-description {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
}

.product-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-light);
}

.meta-item {
    font-size: 0.875rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.product-actions .btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.footer-logo .logo-icon {
    background: white;
    color: var(--text-primary);
}

.footer-logo .logo-primary {
    color: white;
}

.footer-logo .logo-secondary {
    color: #CBD5E1;
}

.footer-tagline {
    color: #CBD5E1;
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.footer-copyright {
    color: #94A3B8;
    font-size: 0.875rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Loading States */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    color: var(--text-secondary);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1.5rem;
}

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

/* Error States */
.error-message {
    background-color: #FEF2F2;
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
    text-align: center;
}

.success-message {
    background-color: #F0FDF4;
    border: 1px solid var(--success-color);
    color: var(--success-color);
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
    text-align: center;
}

/* No Products */
.no-products {
    text-align: center;
    padding: 4rem;
    color: var(--text-secondary);
    background-color: var(--surface-color);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
}

.no-products-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.no-products-content p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .product-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 3rem;
    }
    
    .product-image-container {
        height: 400px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: 280px;
        background-color: var(--surface-color);
        flex-direction: column;
        padding: 6rem 2rem 2rem;
        box-shadow: var(--shadow-xl);
        z-index: 1000;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .visual-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 400px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .product-content {
        padding: 2rem;
    }
    
    .product-title {
        font-size: 2.25rem;
    }
    
    .category-filters {
        gap: 0.5rem;
    }
    
    .category-filter {
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .products-grid {
        gap: 1rem;
    }
    
    .product-content {
        padding: 1.5rem;
    }
    
    .product-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .product-actions .btn {
        width: 100%;
        justify-content: center;
    }


    /* Add to existing css/main.css */

/* Search Bar Styles */
.search-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    margin-right: 2rem;
}

.search-input {
    padding: 0.625rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    width: 200px;
    transition: var(--transition);
    background-color: var(--surface-color);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    width: 250px;
}

.search-btn {
    background: none;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

.search-btn:hover {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

/* Search Results Info */
.search-results-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--primary-light);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.search-results-info p {
    margin: 0;
    color: var(--text-primary);
    font-weight: 500;
}

/* Product Card Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.75rem;
    flex: 1;
}

.action-buttons .btn {
    flex: 1;
    justify-content: center;
    min-width: 120px;
}

.action-buttons .btn-secondary {
    background-color: var(--surface-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.action-buttons .btn-secondary:hover {
    background-color: var(--background-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Product Details Action Buttons */
.product-actions-details {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.product-actions-details .btn {
    flex: 1;
    min-width: 200px;
}

/* Mobile Search */
@media (max-width: 768px) {
    .search-container {
        margin: 1rem 0;
        width: 100%;
        order: 3;
        display: none; /* Hidden by default on mobile, shown when needed */
    }
    
    .search-input {
        width: 100%;
    }
    
    .search-input:focus {
        width: 100%;
    }
    
    .navbar {
        flex-wrap: wrap;
    }
    
    .nav-links.active ~ .search-container {
        display: flex;
    }
}

/* Update product card actions for mobile */
@media (max-width: 480px) {
    .action-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .action-buttons .btn {
        width: 100%;
    }
    
    .product-actions {
        flex-direction: column;
        gap: 1rem;
    }
    
    .updated-date {
        text-align: center;
        width: 100%;
    }
}
}