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

:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --background: #ffffff;
    --background-alt: #f8fafc;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --error-color: #ef4444;
    
    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, 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-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-base: 0.25s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

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

/* Utility Classes */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.highlight {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

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

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

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
}

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

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

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

.bar {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-base);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--background) 0%, var(--background-alt) 100%);
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
}

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

.profile-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    color: white;
    box-shadow: var(--shadow-xl);
}

/* About Section */
.about {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-alt);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-xl);
}

.about-text p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.skills h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.skill-tag {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* Featured Work Section */
.featured-work {
    padding: var(--spacing-3xl) 0;
}

.work-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

.work-item {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

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

.work-image {
    height: 200px;
    position: relative;
}

.work-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--border-color), var(--background-alt));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--text-muted);
}

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

.work-content h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.work-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Analytics Section */
.analytics {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.stat-card {
    background: var(--background-alt);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

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

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.visitor-map {
    margin-top: var(--spacing-3xl);
}

.visitor-map h3 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

.map-container {
    background: var(--background-alt);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.map-placeholder {
    text-align: center;
    color: var(--text-secondary);
}

.map-placeholder i {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.prd-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.prd-link:hover {
    text-decoration: underline;
}

/* Contact Section */
.contact {
    padding: var(--spacing-3xl) 0;
    background-color: var(--background-alt);
}

.contact-description {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

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

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--background);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    font-weight: 500;
}

.contact-link:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--primary-color);
}

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

.footer p {
    color: var(--text-muted);
}

/* Resume Styles */
.resume-header {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    margin-top: 80px;
}

.resume-intro {
    text-align: center;
}

.resume-intro h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.resume-intro p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.download-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.resume-content {
    padding: var(--spacing-3xl) 0;
}

.resume-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
}

.resume-section {
    margin-bottom: var(--spacing-2xl);
}

.resume-section:last-child {
    margin-bottom: 0;
}

.resume-section .section-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    text-align: left;
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

/* Resume Left Column */
.resume-left {
    background: var(--background-alt);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    height: fit-content;
}

.resume-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    text-align: center;
}

.resume-title {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.profile-photo .profile-placeholder {
    width: 150px;
    height: 150px;
    margin: 0 auto var(--spacing-lg);
    font-size: 60px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.contact-item i {
    width: 16px;
    color: var(--primary-color);
}

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

.skill-category h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    position: relative;
}

.skill-list li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.language-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
}

.language {
    color: var(--text-primary);
    font-weight: 500;
}

.proficiency {
    color: var(--text-secondary);
}

/* Resume Right Column */
.resume-right .resume-section p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.experience-item,
.education-item,
.certification-item,
.project-item {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.experience-item:last-child,
.education-item:last-child,
.certification-item:last-child,
.project-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.experience-header,
.education-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-xs);
}

.job-title,
.degree,
.cert-name,
.project-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
}

.job-period,
.education-period {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    font-weight: 500;
}

.company,
.school,
.cert-issuer {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.job-responsibilities {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.job-responsibilities li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.6;
}

.job-responsibilities li::before {
    content: '▸';
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.education-details {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    font-style: italic;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-top: var(--spacing-xs);
}

/* Blog Styles */
.blog-header {
    padding: var(--spacing-3xl) 0 var(--spacing-2xl);
    background: linear-gradient(135deg, var(--background) 0%, var(--background-alt) 100%);
    margin-top: 80px;
}

.blog-intro {
    text-align: center;
}

.blog-intro h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-lg);
}

.blog-intro p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.blog-content {
    padding: var(--spacing-3xl) 0;
}

.blog-content .container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
}

.blog-grid {
    display: grid;
    gap: var(--spacing-2xl);
}

.blog-post {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
    display: grid;
    grid-template-columns: 300px 1fr;
    align-items: center;
}

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

.blog-post.featured {
    grid-template-columns: 1fr;
    margin-bottom: var(--spacing-xl);
}

.post-image {
    height: 200px;
    position: relative;
}

.featured .post-image {
    height: 300px;
}

.post-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--border-color), var(--background-alt));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--text-muted);
}

.post-category {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
}

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

.post-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.post-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.post-title {
    margin-bottom: var(--spacing-sm);
}

.post-title a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
}

.featured .post-title {
    font-size: var(--font-size-2xl);
}

.blog-post:not(.featured) .post-title {
    font-size: var(--font-size-lg);
}

.post-title a:hover {
    color: var(--primary-color);
}

.post-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: gap var(--transition-fast);
}

.read-more:hover {
    gap: var(--spacing-sm);
}

/* Blog Sidebar */
.blog-sidebar {
    background: var(--background-alt);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    height: fit-content;
}

.sidebar-widget {
    margin-bottom: var(--spacing-2xl);
}

.sidebar-widget:last-child {
    margin-bottom: 0;
}

.sidebar-widget h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.category-list,
.recent-posts {
    list-style: none;
}

.category-list li,
.recent-posts li {
    margin-bottom: var(--spacing-sm);
}

.category-list a {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-base);
}

.category-list a:hover {
    color: var(--primary-color);
}

.count {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.recent-posts li {
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.recent-posts li:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.recent-posts a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

.recent-posts a:hover {
    color: var(--primary-color);
}

.recent-date {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    display: block;
    margin-top: var(--spacing-xs);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    background: var(--background);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: var(--font-size-xs);
    transition: all var(--transition-base);
}

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

/* Newsletter Section */
.newsletter {
    padding: var(--spacing-3xl) 0;
    background: var(--primary-color);
    color: white;
}

.newsletter-content {
    text-align: center;
}

.newsletter h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-lg);
}

.newsletter p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
}

.newsletter-form input:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

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

.newsletter-form .btn:hover {
    background: var(--background-alt);
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.25rem;
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
        --spacing-3xl: 2rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--background);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: var(--spacing-3xl);
        transition: left var(--transition-base);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-md) 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .work-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
    }
    
    .resume-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .resume-left {
        order: 2;
    }
    
    .resume-right {
        order: 1;
    }
    
    .experience-header,
    .education-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .blog-content .container {
        grid-template-columns: 1fr;
    }
    
    .blog-sidebar {
        order: -1;
        margin-bottom: var(--spacing-2xl);
    }
    
    .blog-post {
        grid-template-columns: 1fr;
    }
    
    .post-image {
        height: 200px;
    }
    
    .newsletter-form {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .profile-placeholder {
        width: 250px;
        height: 250px;
        font-size: 100px;
    }
    
    .skill-tags {
        justify-content: center;
    }
    
    .resume-left {
        padding: var(--spacing-lg);
    }
    
    .blog-sidebar {
        padding: var(--spacing-lg);
    }
}

/* Map statistics styling */
.map-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.country-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: rgba(var(--accent-color-rgb), 0.1);
    border-radius: 6px;
    border-left: 3px solid var(--accent-color);
}

.country-stat .country {
    font-weight: 500;
}

.country-stat .percentage {
    font-weight: 600;
    color: var(--accent-color);
}

/* PRD Modal */
.prd-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--bg-color);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-color);
}

.modal-header h3 {
    margin: 0;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--accent-color);
    color: white;
}

.modal-body {
    padding: 25px;
}

.modal-body h4 {
    margin: 0 0 15px 0;
    color: var(--accent-color);
}

.modal-body p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 25px;
}

.prd-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.prd-actions .btn {
    flex: 1;
    min-width: 140px;
    text-align: center;
    padding: 12px 20px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.prd-actions .btn-primary {
    background: var(--accent-color);
    color: white;
}

.prd-actions .btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

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

.prd-actions .btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

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

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to { 
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Notification system */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--surface-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 1001;
    min-width: 300px;
    max-width: 400px;
    animation: slideInRight 0.3s ease;
}

.notification-success {
    border-left: 4px solid #10b981;
}

.notification-error {
    border-left: 4px solid #ef4444;
}

.notification-info {
    border-left: 4px solid var(--accent-color);
}

.notification-content {
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.notification-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.notification-message {
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.4;
}

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

/* Blog Post Page Styles */
.blog-post-page {
    padding: var(--spacing-2xl) 0;
}

.post-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
    padding: 0 var(--spacing-md);
}

.post-header .post-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.post-header .post-category {
    position: static;
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.post-header .post-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.post-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: var(--spacing-xl);
    line-height: 1.4;
}

.post-navigation {
    margin-top: var(--spacing-xl);
}

.back-to-blog {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.back-to-blog:hover {
    color: var(--primary-dark);
}

.post-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-3xl);
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.post-main-content {
    max-width: none;
}

.content-section {
    margin-bottom: var(--spacing-2xl);
}

.content-section h2 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.content-section h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.content-section h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.content-section p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
}

.content-section ul, .content-section ol {
    margin: var(--spacing-md) 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

.content-section li {
    margin-bottom: var(--spacing-xs);
}

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

.tip-box, .warning-box, .code-block {
    background: var(--background-alt);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    border-left: 4px solid var(--primary-color);
}

.tip-box h4, .warning-box h4, .code-block h4 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: var(--font-size-base);
}

.warning-box {
    border-left-color: var(--error-color);
    background: #fef2f2;
}

.code-block {
    border-left-color: var(--accent-color);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.post-sidebar {
    background: var(--background-alt);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    height: fit-content;
    position: sticky;
    top: var(--spacing-xl);
}

.sidebar-section {
    margin-bottom: var(--spacing-xl);
}

.sidebar-section:last-child {
    margin-bottom: 0;
}

.sidebar-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.table-of-contents, .related-posts, .tools-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.table-of-contents li, .related-posts li {
    margin-bottom: var(--spacing-xs);
}

.table-of-contents a, .related-posts a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.table-of-contents a:hover, .related-posts a:hover {
    color: var(--primary-color);
}

.tools-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.post-footer {
    max-width: var(--container-max-width);
    margin: var(--spacing-3xl) auto 0;
    padding: var(--spacing-xl) var(--spacing-md) 0;
    border-top: 1px solid var(--border-color);
}

.post-tags, .post-share {
    margin-bottom: var(--spacing-xl);
}

.post-tags h4, .post-share h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.tag {
    display: inline-block;
    background: var(--background-alt);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.tag:hover {
    background: var(--border-color);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    text-decoration: none;
    color: white;
    transition: transform var(--transition-fast);
}

.share-btn:hover {
    transform: translateY(-2px);
}

.share-btn.twitter {
    background: #1da1f2;
}

.share-btn.linkedin {
    background: #0077b5;
}

.share-btn.facebook {
    background: #4267b2;
}

.post-navigation-footer {
    text-align: center;
    padding-top: var(--spacing-xl);
}

/* Responsive Design for Blog Posts */
@media (max-width: 1024px) {
    .post-content-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .post-sidebar {
        position: static;
        order: -1;
    }
}

@media (max-width: 768px) {
    .post-header .post-title {
        font-size: var(--font-size-3xl);
    }
    
    .post-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .post-header .post-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: center;
    }
    
    .content-section h2 {
        font-size: var(--font-size-xl);
    }
    
    .post-sidebar {
        padding: var(--spacing-md);
    }
    
    .share-buttons {
        justify-content: center;
    }
}