/* CSS Custom Properties */
:root {
    /* Colors */
    --primary: 210 100% 50%; /* #007BFF */
    --primary-dark: 210 100% 40%; /* #0056B3 */
    --secondary: 210 20% 25%; /* #343A46 */
    --accent: 25 95% 53%; /* #FF6B35 */
    --background: 210 11% 98%; /* #F5F7FA */
    --surface: 0 0% 100%; /* #FFFFFF */
    --text-primary: 210 22% 22%; /* #2C3E50 */
    --text-secondary: 210 10% 40%; /* #6C757D */
    --text-light: 210 10% 60%; /* #ADB5BD */
    --border: 210 14% 89%; /* #E9ECEF */
    --success: 134 61% 41%; /* #28A745 */
    --warning: 45 100% 51%; /* #FFC107 */
    --error: 354 70% 54%; /* #DC3545 */
    
    /* 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;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: hsl(var(--text-primary));
    background-color: hsl(var(--background));
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover {
    color: hsl(var(--primary-dark));
    text-decoration: underline;
}

/* Container */
.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);
    color: hsl(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);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 44px;
    text-align: center;
    justify-content: center;
}

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

.btn-primary:hover {
    background-color: hsl(var(--primary-dark));
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: hsl(var(--secondary) / 0.8);
    color: white;
    text-decoration: none;
}

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

.btn-outline:hover {
    background-color: hsl(var(--primary));
    color: white;
    text-decoration: none;
}

/* Header and Navigation */
.header {
    background-color: hsl(var(--surface));
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

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

.nav-brand a {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: hsl(var(--primary));
    text-decoration: none;
}

.nav-brand a:hover {
    text-decoration: none;
}

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

.nav-menu a {
    font-weight: 500;
    color: hsl(var(--text-primary));
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: hsl(var(--primary));
    text-decoration: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 3px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: hsl(var(--text-primary));
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl) 0;
    background: linear-gradient(135deg, hsl(var(--background)) 0%, hsl(var(--surface)) 100%);
}

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

.hero-text h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: hsl(var(--text-primary));
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: hsl(var(--primary));
    margin-bottom: var(--spacing-lg);
}

.hero-image {
    text-align: center;
}

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

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

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

.section-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-lg) auto;
}

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

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

/* About Section */
.about {
    background-color: hsl(var(--surface));
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text ul {
    list-style: none;
    padding: 0;
}

.about-text li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
}

.about-text li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: hsl(var(--success));
    font-weight: bold;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background-color: hsl(var(--surface));
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid hsl(var(--border));
}

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

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

/* Testimonials Section */
.testimonials {
    background-color: hsl(var(--surface));
}

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

.testimonial-card {
    background-color: hsl(var(--background));
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border-left: 4px solid hsl(var(--primary));
}

.testimonial-card blockquote {
    font-style: italic;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: hsl(var(--text-primary));
}

.testimonial-card cite {
    font-weight: 500;
    color: hsl(var(--primary));
}

/* Blog Section */
.blog-preview, .blog-section {
    background-color: hsl(var(--background));
}

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

.blog-card {
    background-color: hsl(var(--surface));
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

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

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

.blog-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.blog-date, .blog-category {
    color: hsl(var(--text-light));
}

.blog-category {
    background-color: hsl(var(--primary) / 0.1);
    color: hsl(var(--primary));
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.blog-card h3 {
    margin-bottom: var(--spacing-md);
}

.blog-card h3 a {
    color: hsl(var(--text-primary));
    text-decoration: none;
}

.blog-card h3 a:hover {
    color: hsl(var(--primary));
}

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

.blog-cta {
    text-align: center;
    margin-top: var(--spacing-3xl);
}

.blog-card.featured {
    grid-column: 1 / -1;
}

.blog-card.featured .blog-content {
    padding: var(--spacing-xl);
}

.blog-card.featured h2 {
    font-size: var(--font-size-2xl);
}

/* Subscription Section */
.subscription {
    background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--primary-dark)) 100%);
    color: white;
}

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

.subscription h2 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.subscription p {
    color: white;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
}

.subscription-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 400px;
    margin: 0 auto;
}

.form-group {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background-color: white;
    color: hsl(var(--text-primary));
}

.form-group input:focus {
    outline: none;
    box-shadow: 0 0 0 3px hsl(var(--primary) / 0.3);
}

.error-message {
    color: hsl(var(--error));
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: block;
}

/* Contact Section */
.contact {
    background-color: hsl(var(--surface));
}

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

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

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.social-links a {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: hsl(var(--primary));
    color: white;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: background-color var(--transition-fast);
}

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

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

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

.footer-brand h3 {
    color: white;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.8);
}

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

.footer-links ul, .footer-legal ul {
    list-style: none;
}

.footer-links li, .footer-legal li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a, .footer-legal a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover, .footer-legal a:hover {
    color: white;
    text-decoration: none;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: hsl(var(--secondary));
    color: white;
    padding: var(--spacing-lg);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

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

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

.cookie-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

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

/* Cookie Modal */
.cookie-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1001;
}

.cookie-modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: hsl(var(--surface));
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.close {
    float: right;
    font-size: var(--font-size-2xl);
    font-weight: bold;
    cursor: pointer;
    color: hsl(var(--text-secondary));
}

.close:hover {
    color: hsl(var(--text-primary));
}

.cookie-category {
    margin-bottom: var(--spacing-lg);
}

.cookie-category label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

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

/* Page Header */
.page-header {
    padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl) 0;
    background-color: hsl(var(--background));
    text-align: center;
}

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

/* Thank You Page */
.thank-you {
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl) 0;
    background-color: hsl(var(--background));
    min-height: 70vh;
    display: flex;
    align-items: center;
}

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

.thank-you-icon {
    margin-bottom: var(--spacing-xl);
}

.thank-you-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-xl);
}

/* Article Pages */
.article {
    padding-top: calc(80px + var(--spacing-xl));
}

.article-header {
    margin-bottom: var(--spacing-2xl);
}

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

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

.article-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.article-date, .article-category {
    color: hsl(var(--text-light));
}

.article-category {
    background-color: hsl(var(--primary) / 0.1);
    color: hsl(var(--primary));
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.article-subtitle {
    font-size: var(--font-size-lg);
    color: hsl(var(--text-secondary));
    font-weight: 400;
}

.article-image {
    margin-bottom: var(--spacing-2xl);
    text-align: center;
}

.article-image img {
    width: 100%;
    max-width: 800px;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.article-content {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl) auto;
    line-height: 1.7;
}

.article-intro {
    font-size: var(--font-size-lg);
    color: hsl(var(--text-primary));
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
}

.article-content h2 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    color: hsl(var(--primary));
}

.article-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-content ul, .article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

.article-content li {
    margin-bottom: var(--spacing-sm);
}

.article-conclusion {
    background-color: hsl(var(--background));
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-2xl);
    border-left: 4px solid hsl(var(--primary));
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
    padding-top: var(--spacing-xl);
    border-top: 1px solid hsl(var(--border));
}

/* Legal Pages */
.legal-page {
    padding-top: calc(80px + var(--spacing-xl));
    padding-bottom: var(--spacing-3xl);
}

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

.last-updated {
    color: hsl(var(--text-light));
    font-style: italic;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
}

.legal-content h2 {
    color: hsl(var(--primary));
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

.legal-content h3 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.legal-content h4 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.legal-content ul, .legal-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

.legal-content li {
    margin-bottom: var(--spacing-sm);
}

.contact-info {
    background-color: hsl(var(--background));
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-lg);
}

.cookie-settings {
    text-align: center;
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid hsl(var(--border));
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-menu {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: hsl(var(--surface));
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: var(--font-size-3xl);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-buttons {
        justify-content: center;
    }
    
    .subscription-form {
        max-width: 100%;
    }
    
    .thank-you-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .article-navigation {
        flex-direction: column;
    }
    
    .blog-card.featured {
        grid-column: 1;
    }
    
    .article-image img {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: var(--font-size-2xl);
    }
    
    .section-header h2 {
        font-size: var(--font-size-2xl);
    }
    
    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        width: 100%;
        min-height: 48px;
    }
    
    .modal-content {
        margin: var(--spacing-md);
        width: calc(100% - 2rem);
    }
}

/* Animation and Smooth Scrolling */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .blog-card,
    .testimonial-card {
        animation: fadeInUp 0.6s ease-out;
    }
    
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* Focus styles for accessibility */
button:focus,
input:focus,
a:focus {
    outline: 2px solid hsl(var(--primary));
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .cookie-banner,
    .cookie-modal,
    .nav-toggle {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .article,
    .legal-page {
        padding-top: 0 !important;
    }
}