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

:root {
    /* Colors */
    --primary-color: #2c5282;
    --primary-dark: #1a365d;
    --primary-light: #4299e1;
    --secondary-color: #38a169;
    --secondary-dark: #2d7d32;
    --accent-color: #ed8936;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-gray: #edf2f7;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-4);
    color: var(--text-secondary);
}

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

a:hover {
    color: var(--primary-dark);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

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

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

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

.btn-tertiary {
    background-color: var(--bg-gray);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-tertiary:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

/* Header */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: var(--spacing-4) 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo img {
    width: 40px;
    height: 40px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-8);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: 6px;
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

/* Mobile Navigation */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-20) 0 var(--spacing-16);
    margin-top: 80px;
    overflow: hidden;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-6);
    color: white;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-content p {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-8);
    color: rgba(255, 255, 255, 0.9);
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-4) var(--spacing-8);
    background-color: var(--accent-color);
    color: white;
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: 10px;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.cta-button:hover {
    background-color: #d69e2e;
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -5px rgba(0,0,0,0.2);
    color: white;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.1));
}

/* Sections */
section {
    padding: var(--spacing-20) 0;
}

.about {
    background-color: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
}

.about-features {
    list-style: none;
    margin-top: var(--spacing-6);
}

.about-features li {
    padding: var(--spacing-2) 0;
    color: var(--secondary-color);
    font-weight: 500;
}

.about-image {
    display: flex;
    justify-content: center;
}

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

/* Services */
.services {
    text-align: center;
}

.services h2 {
    margin-bottom: var(--spacing-12);
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-8);
    margin-top: var(--spacing-8);
}

.service-card {
    background: white;
    padding: var(--spacing-8);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card img {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-6);
    display: block;
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
}

/* Testimonials */
.testimonials {
    background-color: var(--bg-light);
    text-align: center;
}

.testimonials h2 {
    margin-bottom: var(--spacing-12);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
}

.testimonial-card {
    background: white;
    padding: var(--spacing-8);
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.testimonial-content p {
    font-style: italic;
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.testimonial-author strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: var(--spacing-1);
}

.testimonial-author span {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* Newsletter */
.newsletter {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: white;
    text-align: center;
}

.newsletter h2,
.newsletter p {
    color: white;
}

.newsletter h2 {
    margin-bottom: var(--spacing-4);
}

.newsletter p {
    margin-bottom: var(--spacing-8);
    font-size: var(--font-size-lg);
}

.newsletter-form {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr auto;
    gap: var(--spacing-4);
    max-width: 800px;
    margin: 0 auto;
}

.form-group input {
    padding: var(--spacing-4);
    border: none;
    border-radius: 8px;
    font-size: var(--font-size-base);
    width: 100%;
}

.form-group input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.3);
}

/* Blog */
.blog {
    text-align: center;
}

.blog h2 {
    margin-bottom: var(--spacing-12);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
    text-align: left;
}

.blog-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.blog-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-content {
    padding: var(--spacing-6);
}

.blog-content h3 {
    margin-bottom: var(--spacing-3);
}

.blog-content h3 a {
    color: var(--primary-color);
}

.blog-content h3 a:hover {
    color: var(--primary-dark);
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-4);
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

.blog-meta .read-more {
    color: var(--primary-color);
    font-weight: 500;
}

.blog-cta {
    margin-top: var(--spacing-12);
    text-align: center;
}

/* Contact */
.contact {
    background-color: var(--bg-light);
}

.contact h2 {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-12);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.contact-item img {
    width: 24px;
    height: 24px;
    margin-top: var(--spacing-1);
}

.contact-item h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-2);
}

.social-media h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
}

.social-links {
    display: flex;
    gap: var(--spacing-4);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-4);
}

.footer-section p,
.footer-section li {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-2);
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: white;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-4);
}

.footer-logo img {
    width: 32px;
    height: 32px;
}

.footer-logo span {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-6);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-4);
    z-index: 1001;
    transform: translateY(100%);
    transition: var(--transition);
}

.cookie-banner.show {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-4);
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-buttons {
    display: flex;
    gap: var(--spacing-3);
    flex-shrink: 0;
}

.cookie-buttons .btn {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
}

/* Cookie Modal */
.cookie-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1002;
    padding: var(--spacing-4);
}

.cookie-modal.show {
    display: flex;
}

.modal-content {
    background: white;
    padding: var(--spacing-8);
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
}

.cookie-option {
    margin-bottom: var(--spacing-6);
}

.cookie-option label {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    cursor: pointer;
}

.cookie-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
}

.cookie-option p {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    margin: 0;
}

.modal-buttons {
    display: flex;
    gap: var(--spacing-3);
    justify-content: flex-end;
    margin-top: var(--spacing-6);
}

/* Legal Content */
.legal-content {
    padding: var(--spacing-20) 0;
    margin-top: 80px;
}

.legal-text {
    max-width: 800px;
    margin: 0 auto;
}

.legal-text h2 {
    color: var(--primary-color);
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-4);
}

.legal-text h3 {
    color: var(--primary-dark);
    margin-top: var(--spacing-6);
    margin-bottom: var(--spacing-3);
}

.legal-text ul, .legal-text ol {
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
}

.legal-text li {
    margin-bottom: var(--spacing-2);
    color: var(--text-secondary);
}

.cookie-settings-link {
    text-align: center;
    margin-top: var(--spacing-8);
}

/* Thanks Page */
.thanks-section {
    padding: var(--spacing-20) 0;
    margin-top: 80px;
    text-align: center;
    background-color: var(--bg-light);
}

.thanks-content {
    max-width: 600px;
    margin: 0 auto;
}

.thanks-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-8);
    display: block;
}

.thanks-actions {
    display: flex;
    gap: var(--spacing-4);
    justify-content: center;
    margin-top: var(--spacing-8);
}

/* Blog Page */
.blog-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-16) 0;
    margin-top: 80px;
    text-align: center;
}

.blog-header h1 {
    color: white;
    margin-bottom: var(--spacing-4);
}

.blog-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
}

.blog-content {
    padding: var(--spacing-16) 0;
}

.blog-content .container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-12);
}

.blog-articles {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.blog-card.featured {
    border: 2px solid var(--primary-color);
}

.blog-category {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--spacing-3);
}

.blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

.sidebar-widget {
    background: white;
    padding: var(--spacing-6);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.sidebar-widget h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-4);
    padding-bottom: var(--spacing-2);
    border-bottom: 2px solid var(--primary-color);
}

.sidebar-widget ul {
    list-style: none;
}

.sidebar-widget li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) 0;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-widget li:last-child {
    border-bottom: none;
}

.sidebar-widget a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.sidebar-widget a:hover {
    color: var(--primary-color);
}

.recent-posts li {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-1);
}

.post-date {
    font-size: var(--font-size-xs);
    color: var(--text-light);
}

.newsletter-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.newsletter-sidebar input {
    padding: var(--spacing-3);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: var(--font-size-sm);
}

.newsletter-sidebar input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

/* Article Page */
.article-content {
    padding: var(--spacing-16) 0;
    margin-top: 80px;
}

.article-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.breadcrumb {
    color: var(--text-light);
    margin-bottom: var(--spacing-4);
    font-size: var(--font-size-sm);
}

.breadcrumb a {
    color: var(--primary-color);
}

.article-category {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: 20px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: var(--spacing-4);
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-6);
    margin: var(--spacing-4) 0;
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

.article-image {
    max-width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    margin: var(--spacing-8) 0;
}

.article-body {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-12);
}

.article-text {
    max-width: none;
}

.lead {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-8);
    padding-left: var(--spacing-4);
    border-left: 4px solid var(--accent-color);
}

.article-text h2 {
    color: var(--primary-color);
    margin-top: var(--spacing-10);
    margin-bottom: var(--spacing-4);
}

.article-text h3 {
    color: var(--primary-dark);
    margin-top: var(--spacing-8);
    margin-bottom: var(--spacing-3);
}

.article-text blockquote {
    background-color: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-6);
    margin: var(--spacing-8) 0;
    border-radius: 0 8px 8px 0;
}

.article-text blockquote p {
    font-style: italic;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-3);
    color: var(--text-primary);
}

.article-text blockquote cite {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    font-style: normal;
}

.formula {
    background-color: var(--bg-gray);
    padding: var(--spacing-4);
    border-radius: 8px;
    text-align: center;
    margin: var(--spacing-6) 0;
    font-family: 'Courier New', monospace;
    border: 2px solid var(--border-color);
}

.calculation-example {
    background-color: var(--bg-light);
    padding: var(--spacing-6);
    border-radius: 8px;
    margin: var(--spacing-6) 0;
    border-left: 4px solid var(--secondary-color);
}

.calculation-example p {
    margin-bottom: var(--spacing-2);
    font-family: 'Courier New', monospace;
}

.article-text ul, .article-text ol {
    margin-bottom: var(--spacing-4);
    padding-left: var(--spacing-6);
}

.article-text li {
    margin-bottom: var(--spacing-2);
    color: var(--text-secondary);
}

.article-text li strong {
    color: var(--text-primary);
}

.article-cta {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    color: white;
    padding: var(--spacing-8);
    border-radius: 12px;
    text-align: center;
    margin: var(--spacing-10) 0;
}

.article-cta h3 {
    color: white;
    margin-bottom: var(--spacing-4);
}

.article-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-6);
}

.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.related-articles li {
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--border-color);
}

.related-articles li:last-child {
    border-bottom: none;
}

.social-share {
    display: flex;
    gap: var(--spacing-3);
}

.social-share a {
    padding: var(--spacing-2) var(--spacing-4);
    background-color: var(--primary-color);
    color: white;
    border-radius: 6px;
    font-size: var(--font-size-sm);
    transition: var(--transition-fast);
}

.social-share a:hover {
    background-color: var(--primary-dark);
    color: white;
}

.contact-phone, .contact-email {
    display: block;
    margin: var(--spacing-2) 0;
    color: var(--primary-color);
    font-weight: 500;
}

.article-footer {
    margin-top: var(--spacing-12);
    padding-top: var(--spacing-8);
    border-top: 2px solid var(--border-color);
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-4);
}

.prev-article, .next-article {
    padding: var(--spacing-3) var(--spacing-6);
    background-color: var(--bg-light);
    border-radius: 8px;
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition-fast);
}

.prev-article:hover, .next-article:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--bg-white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--spacing-8);
        transition: var(--transition);
        box-shadow: var(--shadow);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-8);
    }
    
    .hero-content h1 {
        font-size: var(--font-size-3xl);
    }
    
    .about-content,
    .contact-content,
    .blog-content .container,
    .article-body {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .newsletter-form {
        grid-template-columns: 1fr;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .article-meta {
        flex-direction: column;
        gap: var(--spacing-2);
    }
    
    .article-navigation {
        flex-direction: column;
    }
    
    .thanks-actions {
        flex-direction: column;
        align-items: center;
    }
    
    /* Adjust padding for mobile */
    section {
        padding: var(--spacing-12) 0;
    }
    
    .hero {
        padding: var(--spacing-16) 0 var(--spacing-12);
    }
    
    .container {
        padding: 0 var(--spacing-4);
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: var(--font-size-2xl);
    }
    
    .hero-content p {
        font-size: var(--font-size-base);
    }
    
    h1 { font-size: var(--font-size-3xl); }
    h2 { font-size: var(--font-size-2xl); }
    h3 { font-size: var(--font-size-xl); }
    
    .services-grid,
    .testimonials-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: var(--spacing-4);
        padding: var(--spacing-4);
    }
    
    .modal-buttons {
        flex-direction: column;
    }
}

/* Print Styles */
@media print {
    .header,
    .cookie-banner,
    .cookie-modal,
    .article-sidebar,
    .social-share,
    .article-navigation,
    .footer {
        display: none;
    }
    
    .article-content {
        margin-top: 0;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
    }
    
    .article-body {
        grid-template-columns: 1fr;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

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

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Form Validation */
.form-group {
    position: relative;
    margin-bottom: var(--spacing-4);
}

.form-group input.error {
    border-color: #e53e3e;
    box-shadow: 0 0 0 3px rgba(229, 62, 62, 0.1);
}

.form-group .error-message {
    color: #e53e3e;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-1);
    display: none;
}

.form-group input.error + .error-message {
    display: block;
}

/* Success Messages */
.success-message {
    background-color: #f0fff4;
    border: 1px solid #9ae6b4;
    color: #276749;
    padding: var(--spacing-4);
    border-radius: 6px;
    margin-bottom: var(--spacing-4);
}

/* 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 Styles */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --text-primary: #000000;
        --text-secondary: #333333;
        --border-color: #000000;
    }
}

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