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

/* Variables */
:root {
    --primary-color: #4a6fa5;
    --secondary-color: #5c83bc;
    --accent-color: #e66b6b;
    --background-color: #f8f9fa;
    --sidebar-bg: #2c3e50;
    --sidebar-text: #ecf0f1;
    --sidebar-width: 280px;
    --text-color: #333;
    --light-text: #666;
    --border-color: #ddd;
    --card-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    --font-code: 'Fira Code', 'Courier New', monospace;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    min-height: 100vh;
}

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

a:hover {
    color: var(--secondary-color);
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    line-height: 1.3;
}

/* Layout Structure */
.site-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
    overflow-x: hidden;
    transition: transform 0.3s ease;
}

.sidebar.collapsed {
    transform: translateX(calc(-1 * var(--sidebar-width)));
}

.sidebar-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: var(--spacing-lg);
}

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

.profile-image {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background-color: #34495e;
}

.name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.title {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Navigation */
.main-nav {
    margin-bottom: var(--spacing-xl);
}

.main-nav ul {
    list-style: none;
}

.main-nav li {
    margin-bottom: var(--spacing-sm);
}

.main-nav a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--sidebar-text);
    border-radius: 4px;
    transition: var(--transition);
}

.main-nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.main-nav a.active {
    background-color: var(--primary-color);
    color: white;
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.social-link {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.social-link:hover {
    color: white;
}

.contact-info {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
}

.contact-info a {
    color: rgba(255, 255, 255, 0.7);
}

.contact-info a:hover {
    color: white;
}

.copyright {
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

/* Main Content Area */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--spacing-xl);
    transition: margin-left 0.3s ease;
}

body.sidebar-collapsed .main-content {
    margin-left: 0;
}

.content-container {
    margin: 0 auto;
}

/* Section Styling */
.section-title {
    position: relative;
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    margin-bottom: var(--spacing-xl);
}

.hero-section h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

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

.intro-text {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    line-height: 1.7;
}

/* Buttons */
.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

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

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

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

/* Cards */
.featured-section, .blog-section {
    margin-bottom: var(--spacing-xl);
}

.blog-post-card {
    margin-bottom: var(--spacing-xl);
}

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

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-image .image-placeholder {
    height: 180px;
    background-color: #e0e0e0;
}

.card-content {
    padding: var(--spacing-md);
}

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

.read-more {
    display: inline-block;
    margin-top: var(--spacing-md);
    font-weight: 500;
}

/* Blog Posts */
.post-list {
    margin: var(--spacing-lg) 0;
}

.post-summary {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.post-summary:last-child {
    border-bottom: none;
}

.post-summary time {
    color: var(--light-text);
    font-size: 0.9rem;
}

.post-summary h3 {
    margin: var(--spacing-sm) 0;
}

.view-all {
    display: inline-block;
    margin-top: var(--spacing-md);
    font-weight: 500;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: fixed;
    top: 20px;
    left: calc(var(--sidebar-width) - 20px);
    z-index: 150;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    background-color: var(--secondary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

body.sidebar-collapsed .sidebar-toggle {
    left: 10px;
}

.sidebar-toggle-icon {
    display: block;
    position: relative;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 8px 12px 8px 0;
    border-color: transparent white transparent transparent;
    transition: transform 0.3s ease;
}

body.sidebar-collapsed .sidebar-toggle-icon {
    transform: rotate(180deg);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 200;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.menu-icon {
    display: block;
    position: relative;
    width: 20px;
    height: 2px;
    background-color: white;
    margin: 0 auto;
    transition: var(--transition);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: white;
    transition: var(--transition);
}

.menu-icon::before {
    top: -6px;
}

.menu-icon::after {
    top: 6px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .main-content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    /* Hide desktop sidebar toggle on mobile */
    .sidebar-toggle {
        display: none;
    }

    .site-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        position: fixed;
        top: 0;
        bottom: auto;
        height: 70px;
        overflow: hidden;
        transform: none;
    }

    .sidebar.collapsed {
        transform: none;
    }

    .sidebar.expanded {
        height: 100vh;
        overflow-y: auto;
    }
    
    .sidebar-content {
        padding: var(--spacing-md);
    }
    
    .profile {
        display: flex;
        align-items: center;
        text-align: left;
        margin-bottom: 0;
    }
    
    .profile-image {
        width: 40px;
        height: 40px;
        margin: 0 var(--spacing-md) 0 0;
    }
    
    .main-nav, .sidebar-footer {
        display: none;
    }
    
    .sidebar.expanded .main-nav,
    .sidebar.expanded .sidebar-footer {
        display: block;
    }
    
    .main-content {
        margin-left: 0 !important;
        margin-top: 70px;
        padding: var(--spacing-md);
    }

    body.sidebar-collapsed .main-content {
        margin-left: 0 !important;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .sidebar.expanded .menu-icon {
        background-color: transparent;
    }
    
    .sidebar.expanded .menu-icon::before {
        transform: rotate(45deg);
        top: 0;
    }
    
    .sidebar.expanded .menu-icon::after {
        transform: rotate(-45deg);
        top: 0;
    }
}

@media (max-width: 480px) {
    .hero-section h2 {
        font-size: 2rem;
    }
    
    .intro-text {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
}

/* Code highlighting for project pages */
code {
    font-family: var(--font-code);
    background-color: #f5f5f5;
    padding: 2px 4px;
    border-radius: 3px;
    font-size: 0.9em;
}

pre {
    background-color: #f5f5f5;
    padding: var(--spacing-md);
    border-radius: 4px;
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

pre code {
    background-color: transparent;
    padding: 0;
}

.cv-section {
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid black;
}

.cv-item {
    margin-bottom: var(--spacing-md);
}

th {
    min-width: 120px;
}

td {
  padding: 5px;
}

table, td, th {
  border: 2px solid black;
  border-radius: 1px;
   border-collapse: collapse;
}

/* Blog Post Styles */
.blog-post {
    max-width: 800px;
}

.blog-post .post-header {
    margin-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: var(--spacing-md);
}

.blog-post .post-header h1 {
    margin-bottom: var(--spacing-sm);
    font-size: 2.5rem;
}

.blog-post .post-meta {
    color: var(--light-text);
    font-size: 0.95rem;
}

.blog-post .post-meta time {
    margin-right: var(--spacing-md);
}

.blog-post .post-content {
    line-height: 1.8;
    font-size: 1.05rem;
}

.blog-post .post-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    font-size: 1.8rem;
}

.blog-post .post-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    font-size: 1.4rem;
}

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

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

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

.blog-post .post-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    color: var(--light-text);
    font-style: italic;
}

.blog-post .post-content img {
    max-width: 100%;
    height: auto;
    margin: var(--spacing-lg) 0;
    border-radius: 4px;
}

/* Math rendering */
.math-inline {
    font-family: "Latin Modern Math", "STIX Two Math", "Cambria Math", serif;
    font-style: italic;
}

.math-display {
    font-family: "Latin Modern Math", "STIX Two Math", "Cambria Math", serif;
    text-align: center;
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    overflow-x: auto;
}

/* Project Styles */
.project {
    max-width: 900px;
}

.project-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 3px solid var(--primary-color);
}

.project-header h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.project-subtitle {
    font-size: 1.2rem;
    color: var(--light-text);
    margin-bottom: var(--spacing-md);
}

.project-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--light-text);
    font-size: 0.95rem;
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

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

.project-section h2 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.project-section h3 {
    font-size: 1.3rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tech-badge {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
}

.project-gallery {
    margin: var(--spacing-lg) 0;
}

.project-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* Projects Grid (for projects.html listing) */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.project-card {
    background: white;
    border-radius: 8px;
    padding: var(--spacing-lg);
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: var(--spacing-md);
}

.project-card h3 {
    margin: 0;
    font-size: 1.4rem;
}

.project-card h3 a {
    color: var(--text-color);
}

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

.project-status {
    font-size: 0.85rem;
    padding: 4px 8px;
    background: var(--background-color);
    border-radius: 4px;
    color: var(--light-text);
    white-space: nowrap;
}

.project-description {
    color: var(--light-text);
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.project-tags {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.project-card .btn {
    align-self: flex-start;
}

p {
    text-align: justify;
}