/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Variables */
:root {
    --primary-color: #0F172A;
    --secondary-color: #0EA5E9;
    --accent-color: #10B981;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --background-light: #F8FAFC;
    --white: #FFFFFF;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, #1E293B 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, #0284C7 100%);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 8px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    line-height: 1.5;
}

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

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

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
}

.btn-outline {
    background: transparent;
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
}

.btn-outline:hover {
    background: var(--secondary-color);
    color: var(--white);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    padding: var(--spacing-md) 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--white);
    font-weight: 600;
    font-size: 18px;
}

.nav-logo svg {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--secondary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--secondary-color);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://images.pexels.com/photos/4481259/pexels-photo-4481259.jpeg?auto=compress&cs=tinysrgb&w=1920&h=1080&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    color: var(--white);
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Page Header */
.page-header {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 120px 0 var(--spacing-3xl);
    text-align: center;
}

.page-header h1 {
    margin-bottom: var(--spacing-md);
}

.page-header p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
}

/* Breadcrumb */
.breadcrumb {
    background: var(--background-light);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 14px;
}

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

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

/* Sections */
.section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto;
}

/* Featured Products */
.featured-products {
    padding: var(--spacing-3xl) 0;
    background: var(--background-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.product-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

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

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--accent-color);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.product-content {
    padding: var(--spacing-lg);
}

.product-content h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.product-specs {
    font-size: 12px;
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
}

.product-price {
    font-weight: 600;
    color: var(--text-primary);
}

/* Advantages */
.advantages {
    padding: var(--spacing-3xl) 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.advantage-item {
    text-align: center;
    padding: var(--spacing-xl);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--white);
}

.advantage-item h3 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

/* CTA Section */
.cta-section {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.cta-content h2 {
    margin-bottom: var(--spacing-md);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.cta-content p {
    font-size: 18px;
    margin-bottom: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Products Filter */
.products-section {
    padding: var(--spacing-3xl) 0;
}

.products-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    background: var(--white);
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
}

/* Product Detail */
.product-detail {
    padding: var(--spacing-3xl) 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.product-images {
    position: sticky;
    top: 100px;
}

.main-image {
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.main-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.image-thumbnails {
    display: flex;
    gap: var(--spacing-sm);
}

.thumbnail {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.7;
    transition: var(--transition);
    border: 2px solid transparent;
}

.thumbnail.active,
.thumbnail:hover {
    opacity: 1;
    border-color: var(--secondary-color);
}

.product-info h1 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.stars {
    color: #FFC107;
    font-size: 18px;
}

.product-features {
    background: var(--background-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-xl);
}

.feature-item {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

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

.product-description,
.product-specs {
    margin-bottom: var(--spacing-xl);
}

.product-specs table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.product-specs td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.product-specs td:first-child {
    font-weight: 500;
    background: var(--background-light);
    width: 40%;
}

.product-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* About Page */
.about-content {
    padding: var(--spacing-3xl) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: var(--border-radius);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Mission Vision */
.mission-vision {
    background: var(--background-light);
    padding: var(--spacing-3xl) 0;
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-3xl);
}

.mv-item {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.mv-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    color: var(--white);
}

/* Certifications */
.certifications {
    padding: var(--spacing-3xl) 0;
}

.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.cert-item {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.cert-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.cert-icon {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

/* Team Section */
.team-section {
    background: var(--background-light);
    padding: var(--spacing-3xl) 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.team-member {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.member-photo {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--secondary-color);
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-position {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

/* Blog */
.blog-section {
    padding: var(--spacing-3xl) 0;
}

.blog-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.blog-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-card.featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 0;
}

.blog-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.blog-card.featured .blog-image {
    height: auto;
}

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

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

.blog-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--accent-color);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.blog-content {
    padding: var(--spacing-lg);
}

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 14px;
    color: var(--text-light);
}

.blog-content h2 a,
.blog-content h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.blog-content h2 a:hover,
.blog-content h3 a:hover {
    color: var(--secondary-color);
}

.read-more {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.read-more:hover {
    text-decoration: underline;
}

/* Article Page */
.article-content {
    padding: var(--spacing-3xl) 0;
}

.article-header {
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
}

.article-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 14px;
    color: var(--text-light);
    flex-wrap: wrap;
}

.article-image {
    margin: var(--spacing-xl) 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.article-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.article-body h2 {
    color: var(--text-primary);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.article-body ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.article-body li {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.article-intro {
    font-size: 18px;
    font-style: italic;
    color: var(--text-primary);
    border-left: 4px solid var(--secondary-color);
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.article-conclusion {
    background: var(--background-light);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    margin: var(--spacing-2xl) 0;
}

.article-cta {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius);
    text-align: center;
    margin: var(--spacing-2xl) 0;
}

.article-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

/* Related Articles */
.related-articles {
    background: var(--background-light);
    padding: var(--spacing-3xl) 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

/* Contact Page */
.contact-section {
    padding: var(--spacing-3xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-3xl);
}

.contact-info h2 {
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-details h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-details p {
    margin: 0;
}

/* Form Styles */
.contact-form {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Map Section */
.map-section {
    background: var(--background-light);
    padding: var(--spacing-3xl) 0;
}

.map-container {
    margin-top: var(--spacing-xl);
}

.map-placeholder {
    height: 400px;
    background: var(--white);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-2xl);
}

.page-btn {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: var(--white);
    color: var(--text-secondary);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.page-btn.active,
.page-btn:hover {
    background: var(--secondary-color);
    color: var(--white);
    border-color: var(--secondary-color);
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    font-size: 18px;
}

.footer-logo svg {
    color: var(--secondary-color);
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-right"] {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="fade-right"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

[data-aos="fade-left"] {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="fade-left"].aos-animate {
    opacity: 1;
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="zoom-in"].aos-animate {
    opacity: 1;
    transform: scale(1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .blog-card.featured {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--primary-color);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-2xl);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(45deg) translate(-6px, -6px);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .mv-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .product-actions .btn {
        width: 100%;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        height: 80vh;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .page-header {
        padding: 100px 0 var(--spacing-2xl);
    }
    
    .section {
        padding: var(--spacing-2xl) 0;
    }
    
    .image-thumbnails {
        justify-content: center;
    }
    
    .products-filter {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: var(--spacing-sm);
    }
    
    .filter-btn {
        white-space: nowrap;
        flex-shrink: 0;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--secondary-color);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success/Error States */
.success-message {
    background: #DEF7EC;
    color: #047857;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid #A7F3D0;
    margin-bottom: var(--spacing-md);
}

.error-message {
    background: #FEF2F2;
    color: #DC2626;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid #FECACA;
    margin-bottom: var(--spacing-md);
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus States */
*:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.3);
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .nav-toggle,
    .btn {
        display: none;
    }
    
    .page-header {
        background: none;
        color: var(--text-primary);
    }
    
    body {
        font-size: 12px;
        line-height: 1.4;
    }
}