@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

:root {
    /* Color palette */
    --primary-color: #333b55;
    --accent-color: #ff4b5c;
    --accent-hover: #e04352;
    --text-light: #333;
    --text-dark: #f9f9f9;
    --bg-light: #f9f9f9;
    --bg-dark: #1c1c1c;
    --bg-card-light: #fff;
    --bg-card-dark: #333b55;
    --border-light: #ccc;
    --border-dark: #555;
    
    /* Typography */
    --font-family: 'Roboto', sans-serif;
    --font-size-base: 18px;
    --font-size-large: 1.125em;
    --line-height-base: 1.6;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 30px;
    --spacing-xl: 40px;
    --spacing-xxl: 60px;
    
    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 10px;
    --border-radius-sm: 5px;
    --border-radius-circle: 50%;
    
    /* Shadows */
    --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
}

/* Accessibility - Screen Reader Only Content */
.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;
}

/* Skip Links for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--text-dark);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    z-index: 1000;
    transition: var(--transition-fast);
}

.skip-link:focus {
    top: 6px;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--bg-light);
    color: var(--text-light);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
}

.container {
    width: 90%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
}

header {
    background-color: var(--bg-card-light);
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: box-shadow var(--transition-fast);
}

header.shadow {
    box-shadow: var(--shadow-light);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-md);
}

header .logo img {
    border-radius: var(--border-radius-circle);
    width: 50px;
    height: 50px;
    object-fit: cover;
}

nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
    margin: 0;
    padding: 0;
}

nav ul li a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
}

nav ul li a:hover {
    color: var(--accent-color);
}

.toggle-switch {
    position: relative;
    width: 50px;
    height: 25px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-light);
    transition: var(--transition-medium);
    border-radius: 25px;
}

.toggle-switch label:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 3.5px;
    background-color: white;
    transition: var(--transition-medium);
    border-radius: var(--border-radius-circle);
}

.toggle-switch input:checked + label {
    background-color: var(--accent-color);
}

.toggle-switch input:checked + label:before {
    transform: translateX(24px);
}

.language-switch {
    margin-left: var(--spacing-md);
}

.language-switch select {
    padding: var(--spacing-xs);
    font-size: 16px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-light);
    cursor: pointer;
    background-color: var(--bg-card-light);
    color: var(--text-light);
}

.download-pdf-btn {
    margin-left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 14px;
    font-weight: var(--font-weight-medium);
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--accent-color);
    cursor: pointer;
    background-color: var(--accent-color);
    color: white;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.download-pdf-btn:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: var(--spacing-xs);
}

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

main {
    padding: 100px 0 var(--spacing-xl) 0; /* Extra padding at the top to account for fixed header */
}

section {
    margin-bottom: var(--spacing-xxl);
    opacity: 0;
    transform: translateY(var(--spacing-md));
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    background-color: var(--bg-card-light);
    box-shadow: var(--shadow-light);
}

section.show {
    opacity: 1;
    transform: translateY(0);
}

section:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-medium);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.about-content img {
    border-radius: var(--border-radius-circle);
    width: 250px;
    height: 250px;
    object-fit: cover;
}

.skills-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.skills-column {
    flex: 1;
    min-width: 200px;
}

.skills-column h3 {
    font-size: 1.5em;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.skills-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.skills-column ul li {
    background-color: #f2f2f2;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-fast);
}

.skills-column ul li:hover {
    background-color: #e9e9e9;
}

h1 {
    font-size: 2.5em;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    padding-bottom: var(--spacing-xs);
}

h2 {
    font-size: 2.2em;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    border-bottom: 2px solid var(--accent-color);
    display: inline-block;
    padding-bottom: var(--spacing-xs);
}

h3 {
    font-size: 1.8em;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

h4 {
    font-size: 1.4em;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

p {
    font-size: var(--font-size-large);
    line-height: var(--line-height-base);
    flex: 1;
    margin-bottom: var(--spacing-md);
}

.job, .school, .project {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.contact a {
    color: var(--accent-color);
    transition: color var(--transition-fast);
    text-decoration: none;
}

.contact a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

footer {
    background-color: var(--primary-color);
    color: var(--text-dark);
    padding: var(--spacing-md) 0;
    text-align: center;
    font-size: var(--font-size-base);
    margin-top: var(--spacing-xl);
}

/* Blog styles */
.blog-coming-soon {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.blog-content h1 {
    font-size: 2.2em;
    margin-bottom: var(--spacing-lg);
}

.blog-content p {
    font-size: 1.1em;
    color: var(--primary-color);
    margin: 0;
}

.blog-section {
    min-height: 70vh;
}

.blog-section h1 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: 2.2em;
}

#blog-posts-container {
    max-width: 900px;
    margin: 0 auto;
}

.blog-post {
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid var(--accent-color);
    box-shadow: var(--shadow-light);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.blog-post-header h2 {
    font-size: 1.5em;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    border: none;
    display: block;
    padding: 0;
}

.blog-post-meta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.9em;
    color: #666;
}

.blog-post-date, .blog-post-author {
    display: flex;
    align-items: center;
}

.blog-post-date::before {
    content: "📅 ";
    margin-right: 5px;
}

.blog-post-author::before {
    content: "✍️ ";
    margin-right: 5px;
}

.blog-post-excerpt {
    font-size: 1em;
    line-height: 1.6;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.blog-post-content {
    font-size: 1em;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.blog-post-content p {
    margin-bottom: var(--spacing-md);
}

.blog-post-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1em;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
    width: 100%;
    justify-content: center;
}

.blog-post-toggle:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.toggle-icon {
    transition: transform var(--transition-fast);
}

.blog-post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.blog-tag {
    background-color: var(--primary-color);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: var(--font-weight-medium);
}

/* Blog filters and search */
.blog-filters {
    max-width: 900px;
    margin: 0 auto var(--spacing-xl);
}

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

.blog-search input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1em;
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family);
    transition: border-color var(--transition-fast);
}

.blog-search input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.blog-filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.filter-tag {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

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

.filter-tag.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

/* Blog post preview (for listing page) */
.blog-post-preview {
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid var(--accent-color);
    box-shadow: var(--shadow-light);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.blog-post-preview h2 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.blog-post-preview h2 a:hover {
    color: var(--accent-color);
}

.blog-post-reading-time {
    color: #666;
    font-size: 0.9em;
}

.blog-post-reading-time::before {
    content: "⏱ ";
    margin-right: 5px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    margin-top: var(--spacing-md);
}

.read-more:hover {
    background-color: var(--accent-hover);
    transform: translateX(5px);
}

/* Blog pagination */
.blog-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.pagination-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1em;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.pagination-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    opacity: 0.6;
}

.page-info {
    font-weight: var(--font-weight-medium);
    color: var(--primary-color);
}

/* Full blog post page */
.blog-post-section {
    background-color: var(--bg-card-light);
    padding: calc(80px + var(--spacing-lg)) 0 var(--spacing-lg) 0;
    text-align: center;
}

.blog-post-title-header {
    font-size: 2em;
    color: var(--primary-color);
    margin: 0;
    padding: 0 var(--spacing-md);
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.blog-post-full {
    min-height: 50vh;
    padding: var(--spacing-xl) 0;
}

.blog-breadcrumb {
    margin-bottom: var(--spacing-lg);
}

.blog-breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.blog-breadcrumb a:hover {
    color: var(--accent-color);
}

.blog-post-full .blog-post-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-light);
}

.blog-post-full .blog-post-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.95em;
    color: #666;
    flex-wrap: wrap;
}

.blog-post-full .blog-post-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.blog-post-full .blog-post-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.05em;
    line-height: 1.7;
    color: var(--text-light);
}

.blog-post-full .blog-post-content h2 {
    font-size: 1.6em;
    color: var(--primary-color);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.blog-post-full .blog-post-content h3 {
    font-size: 1.3em;
    color: var(--primary-color);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.blog-post-full .blog-post-content p {
    margin-bottom: var(--spacing-md);
}

.blog-post-full .blog-post-content ul,
.blog-post-full .blog-post-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.blog-post-full .blog-post-content li {
    margin-bottom: var(--spacing-sm);
}

.blog-post-full .blog-post-content code {
    background-color: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.blog-post-full .blog-post-content pre {
    background-color: #f5f5f5;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.blog-post-full .blog-post-content pre code {
    background: none;
    padding: 0;
}

.blog-post-full .blog-post-content blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: var(--spacing-md);
    margin-left: 0;
    margin-bottom: var(--spacing-md);
    font-style: italic;
    color: #555;
}

.blog-post-full .blog-post-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
    margin: var(--spacing-lg) 0;
}

.blog-post-footer {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border-light);
}

.blog-share {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.blog-share p {
    font-weight: var(--font-weight-medium);
    color: var(--primary-color);
    margin: 0;
}

.blog-share a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius-circle);
    transition: all var(--transition-fast);
}

.blog-share a:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
}

.no-posts,
.error-message {
    text-align: center;
    padding: var(--spacing-xl);
    font-size: 1.2em;
    color: #666;
}

.error-message {
    color: var(--accent-color);
}


/* Active navigation link */
nav ul li a.active {
    color: var(--accent-color);
    font-weight: var(--font-weight-bold);
}

/* Dark mode styles */
body.dark-mode {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

body.dark-mode section {
    background-color: var(--bg-card-dark);
    color: var(--text-dark);
}

body.dark-mode header {
    background-color: var(--primary-color);
}

body.dark-mode .language-switch select {
    background-color: var(--bg-card-dark);
    color: var(--text-dark);
    border-color: var(--border-dark);
}

body.dark-mode .download-pdf-btn {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

body.dark-mode .download-pdf-btn:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

body.dark-mode nav ul li a {
    color: var(--text-dark);
}

body.dark-mode nav ul li a:hover {
    color: var(--accent-color);
}

body.dark-mode .toggle-switch label {
    background-color: var(--border-dark);
}

body.dark-mode .toggle-switch label:before {
    background-color: var(--primary-color);
}

body.dark-mode h1, 
body.dark-mode h2, 
body.dark-mode h3, 
body.dark-mode h4 {
    color: var(--text-dark);
}

body.dark-mode footer {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

body.dark-mode .skills-column ul li {
    background-color: var(--primary-color);
    color: var(--text-dark);
}

body.dark-mode .skills-column ul li:hover {
    background-color: #444;
}

body.dark-mode .job, 
body.dark-mode .school, 
body.dark-mode .project {
    background-color: rgba(51, 59, 85, 0.3);
}

body.dark-mode .hamburger .bar {
    background-color: var(--text-dark);
}

body.dark-mode .blog-content p {
    color: var(--text-dark);
}

body.dark-mode .blog-post {
    background-color: rgba(51, 59, 85, 0.5);
    color: var(--text-dark);
}

body.dark-mode .blog-post-header h2 {
    color: var(--text-dark);
}

body.dark-mode .blog-post-meta {
    color: #ccc;
}

body.dark-mode .blog-post-excerpt,
body.dark-mode .blog-post-content {
    color: var(--text-dark);
}

body.dark-mode .blog-post-toggle {
    background-color: var(--accent-color);
    color: white;
}

body.dark-mode .blog-post-toggle:hover {
    background-color: var(--accent-hover);
}

body.dark-mode .blog-tag {
    background-color: var(--accent-color);
    color: white;
}

body.dark-mode .blog-search input {
    background-color: var(--bg-card-dark);
    border-color: var(--border-dark);
    color: var(--text-dark);
}

body.dark-mode .blog-search input::placeholder {
    color: #999;
}

body.dark-mode .filter-tag {
    color: var(--text-dark);
    border-color: var(--text-dark);
}

body.dark-mode .filter-tag:hover {
    background-color: var(--text-dark);
    color: var(--bg-dark);
}

body.dark-mode .filter-tag.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

body.dark-mode .blog-post-preview {
    background-color: rgba(51, 59, 85, 0.9);
}

body.dark-mode .blog-post-preview h2 a {
    color: var(--text-dark);
}

body.dark-mode .blog-post-preview h2 a:hover {
    color: var(--accent-color);
}

body.dark-mode .blog-post-reading-time {
    color: #ccc;
}

body.dark-mode .page-info {
    color: var(--text-dark);
}

body.dark-mode .blog-breadcrumb a {
    color: var(--text-dark);
}

body.dark-mode .blog-post-full .blog-post-header {
    border-bottom-color: var(--border-dark);
}

body.dark-mode .blog-post-section {
    background-color: var(--bg-card-dark);
}

body.dark-mode .blog-post-title-header {
    color: var(--text-dark);
}

body.dark-mode .blog-post-full .blog-post-meta {
    color: #ccc;
}

body.dark-mode .blog-post-full .blog-post-content {
    color: var(--text-dark);
}

body.dark-mode .blog-post-full .blog-post-content h2,
body.dark-mode .blog-post-full .blog-post-content h3 {
    color: var(--text-dark);
}

body.dark-mode .blog-post-full .blog-post-content code {
    background-color: rgba(0, 0, 0, 0.3);
    color: #f8f8f2;
}

body.dark-mode .blog-post-full .blog-post-content pre {
    background-color: rgba(0, 0, 0, 0.3);
}

body.dark-mode .blog-post-full .blog-post-content blockquote {
    color: #ccc;
}

body.dark-mode .blog-post-footer {
    border-top-color: var(--border-dark);
}

body.dark-mode .blog-share p {
    color: var(--text-dark);
}

body.dark-mode .no-posts,
body.dark-mode .error-message {
    color: #ccc;
}

/* Responsive styles */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    header .container {
        padding: var(--spacing-sm);
    }
    
    nav ul {
        display: none;
        flex-direction: column;
        width: 100%;
        text-align: center;
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--bg-card-light);
        box-shadow: var(--shadow-medium);
        border-radius: 0 0 var(--border-radius) var(--border-radius);
        padding: var(--spacing-md) 0;
        z-index: 999;
    }

    nav ul.open {
        display: flex;
    }
    
    nav ul li {
        margin: var(--spacing-xs) 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.open .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.open .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.open .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .about-content img {
        width: 200px;
        height: 200px;
        margin-top: var(--spacing-md);
    }
    
    .skills-content {
        flex-direction: column;
    }
    
    .skills-column {
        margin-bottom: var(--spacing-md);
    }
    
    h1 {
        font-size: 2em;
    }
    
    h2 {
        font-size: 1.8em;
    }
    
    h3 {
        font-size: 1.5em;
    }
    
    h4 {
        font-size: 1.2em;
    }
    
    .language-switch {
        margin-left: var(--spacing-sm);
    }
    
    .language-switch select {
        font-size: 14px;
        padding: var(--spacing-xs);
    }
    
    .download-pdf-btn {
        margin-left: var(--spacing-sm);
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 12px;
    }
    
    section {
        margin-bottom: var(--spacing-xl);
        padding: var(--spacing-md);
    }
    
    main {
        padding-top: 120px; /* Adjust for taller mobile header */
    }
    
    .blog-post {
        padding: var(--spacing-md);
    }
    
    .blog-post-header h2 {
        font-size: 1.5em;
    }
    
    .blog-post-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .blog-section h1 {
        font-size: 2.2em;
    }
}

/* Dark mode responsive adjustments */
@media (max-width: 768px) {
    body.dark-mode nav ul {
        background-color: var(--primary-color);
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    h1 {
        font-size: 1.8em;
    }
    
    h2 {
        font-size: 1.6em;
    }
    
    h3 {
        font-size: 1.3em;
    }
    
    .about-content img {
        width: 150px;
        height: 150px;
    }
    
    header .logo img {
        width: 40px;
        height: 40px;
    }
    
    .language-switch select {
        font-size: 12px;
    }
    
    .download-pdf-btn {
        margin-left: var(--spacing-xs);
        padding: 4px var(--spacing-xs);
        font-size: 10px;
    }
    
    .blog-post-title-header {
        font-size: 1.5em;
    }
    
    .blog-post-full .blog-post-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}