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

:root {
    /* Light Theme Colors */
    --primary-color: #007acc;
    --primary-dark: #005a99;
    --secondary-color: #f8f9fa;
    --accent-color: #17a2b8;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --text-light: #ffffff;
    --border-color: #e9ecef;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.2);
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    
    /* Card Colors */
    --card-bg: #ffffff;
    --card-border: #e9ecef;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Orbitron', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
    --font-tech: 'IBM Plex Mono', monospace;
    --font-greeting: 'VT323', monospace;
    --font-heading: 'Exo 2', sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-xl: 24px;
    --font-size-xxl: 32px;
    --font-size-hero: 48px;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Theme Transition */
    --theme-transition: all 0.3s ease;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    --primary-color: #4da6ff;
    --primary-dark: #3399ff;
    --secondary-color: #1a1a1a;
    --accent-color: #20c997;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-light: #000000;
    --border-color: #404040;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.5);
    
    /* Background Colors */
    --bg-primary: #121212;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2d2d2d;
    
    /* Card Colors */
    --card-bg: #1e1e1e;
    --card-border: #404040;
}

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-hero); }
h2 { font-size: var(--font-size-xxl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-large); }

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-base);
}

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

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

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

.btn-secondary:hover {
    background-color: var(--primary-dark);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.btn-outline:hover {
    background-color: var(--text-primary);
    color: var(--text-light);
    transform: translateY(-2px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-light);
}

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

.nav-logo a {
    font-size: var(--font-size-xl);
    font-weight: 700;
    font-family: var(--font-display);
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: 1px;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: all var(--transition-fast);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 6px;
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
    background-color: var(--bg-secondary);
}

.nav-menu a.active {
    color: var(--primary-color);
    background-color: var(--bg-secondary);
    font-weight: 600;
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 1px;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Theme Toggle Button - Integrated in Navbar */
.theme-toggle-nav {
    display: flex;
    align-items: center;
    margin-left: var(--spacing-md);
}

.theme-toggle-btn {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--theme-transition);
    font-size: var(--font-size-base);
    box-shadow: var(--shadow-light);
}

.theme-toggle-btn:hover {
    background-color: black;
    color: white;
    transform: scale(1.05);
    box-shadow: var(--shadow-medium);
}

.theme-toggle-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.3);
}

/* Dark theme icon adjustments */
[data-theme="dark"] .theme-toggle-btn {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

[data-theme="dark"] .theme-toggle-btn:hover {
    background-color: black;
    color: white;
}

/* Theme toggle button icon colors */
.theme-toggle-btn i {
    color: var(--text-primary);
    transition: color var(--theme-transition);
}

.theme-toggle-btn:hover i {
    color: white;
}

/* Dark theme specific icon colors */
[data-theme="dark"] .theme-toggle-btn i {
    color: #ffd700; /* Yellow sun */
}

[data-theme="dark"] .theme-toggle-btn:hover {
    background-color: var(--primary-color);
}

[data-theme="dark"] .theme-toggle-btn:hover i {
    color: #ffd700; /* Keep sun yellow on hover */
}

/* Dark theme specific adjustments */
[data-theme="dark"] .navbar {
    background-color: rgba(18, 18, 18, 0.95);
}

[data-theme="dark"] .nav-menu a {
    color: var(--text-primary);
}

[data-theme="dark"] .nav-menu a:hover {
    background-color: var(--bg-secondary);
}

[data-theme="dark"] .nav-toggle span {
    background-color: var(--text-primary);
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

[data-theme="dark"] .tech-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--primary-color);
}

[data-theme="dark"] .expertise-skills span:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    box-shadow: var(--shadow-medium);
}

[data-theme="dark"] .stat-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
}

[data-theme="dark"] .timeline-content {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
}

[data-theme="dark"] .timeline::before {
    background-color: var(--primary-color);
}

[data-theme="dark"] .timeline-marker {
    background-color: var(--primary-color);
    border: 3px solid var(--bg-primary);
}

/* Additional dark mode enhancements */
[data-theme="dark"] .btn-secondary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

[data-theme="dark"] .btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

[data-theme="dark"] .btn-outline {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-outline:hover {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

[data-theme="dark"] .expertise-skills span {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

[data-theme="dark"] .skill-item {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

[data-theme="dark"] .project-tech span {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 120px 0 var(--spacing-xxl);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--theme-transition);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: end;
}

.hero-greeting {
    font-family: var(--font-greeting);
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--accent-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
    letter-spacing: 1px;
    opacity: 0.9;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.hero-name {
    color: var(--text-primary);
    font-weight: 700;
    font-family: var(--font-display);
    letter-spacing: 1px;
}

.hero-role {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: 500;
    min-height: 1.5em;
    display: flex;
    align-items: center;
}

/* Typing Animation */
.typed-text {
    color: var(--primary-color);
}

.cursor {
    color: var(--primary-color);
    animation: blink 1s infinite;
    font-weight: 400;
}

.cursor.typing {
    animation: none;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-subtitle {
    font-size: var(--font-size-large);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    align-items: flex-start;
    justify-content: center;
}

.stats-left {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-md);
    align-items: center;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-sm);
    background-color: var(--text-light);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    min-width: 100px;
}

.stat-number {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 700;
    font-family: var(--font-tech);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 1px;
}

.stat-label {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

/* Social Bubbles */
.social-bubbles {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: flex-start;
}

.bubble-row {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.social-bubble {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: var(--font-size-base);
    box-shadow: var(--shadow-light);
}

.social-bubble:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-medium);
}

/* Individual social bubble colors */
.social-bubble.linkedin {
    background-color: #0077b5;
    color: white;
}

.social-bubble.github {
    background-color: #333;
    color: white;
}

.social-bubble.leetcode {
    background-color: #ffa116;
    color: white;
}

.social-bubble.codeforces {
    background-color: #1f8acb;
    color: white;
}

.social-bubble.email {
    background-color: #ea4335;
    color: white;
}

.social-bubble.certificate {
    background-color: #0078d4;
    color: white;
}

/* Dark mode adjustments for social bubbles */
[data-theme="dark"] .social-bubble.github {
    background-color: #f0f6fc;
    color: #24292f;
}

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

.tech-stack {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    max-width: 500px;
    min-height: 400px;
    align-content: start;
}

.tech-item {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    color: var(--primary-color);
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
    font-size: var(--font-size-small);
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
    min-width: 140px;
    white-space: nowrap;
}

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

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 600;
    position: relative;
    letter-spacing: 0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* About Section */
.about {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-primary);
    transition: var(--theme-transition);
}

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

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

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    transition: var(--theme-transition);
}

.highlight-item i {
    color: var(--primary-color);
    font-size: var(--font-size-large);
}

.profile-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: 100px;
    transition: var(--theme-transition);
}

.profile-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.profile-header h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.profile-header p {
    color: var(--primary-color);
    font-weight: 500;
}

.profile-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.detail-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    transition: var(--theme-transition);
}

.detail-item i {
    color: var(--primary-color);
    width: 20px;
}

.certification-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.certification-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Expertise Section */
.expertise {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-secondary);
    transition: var(--theme-transition);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    /* max-width: 1000px;
    margin: 0 auto; */
}

.expertise-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: var(--spacing-lg);
    border-radius: 16px;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
    text-align: center;
    min-height: 320px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
}

.expertise-icon {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.expertise-icon i {
    font-size: var(--font-size-xl);
    color: var(--text-light);
}

.expertise-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.3px;
}

.expertise-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.expertise-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    justify-content: center;
    margin-top: var(--spacing-md);
}

.expertise-skills span {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: var(--font-size-small);
    font-weight: 500;
    transition: var(--theme-transition);
    margin: 2px;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.expertise-skills span:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.expertise-skills span {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-small);
    font-weight: 500;
    transition: var(--theme-transition);
}

/* Experience Section */
.experience {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-primary);
    transition: var(--theme-transition);
}

.timeline {
    position: relative;
    /* max-width: 800px; */
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 0;
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-content {
    position: relative;
    width: 45%;
    padding: var(--spacing-lg);
    background-color: var(--secondary-color);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
}

.timeline-item:nth-child(odd) .timeline-content {
    left: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    left: 55%;
}

.timeline-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

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

.company {
    color: var(--primary-color);
    font-weight: 600;
}

.duration {
    color: var(--text-secondary);
    font-size: var(--font-size-small);
}

.timeline-location {
    color: var(--text-secondary);
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-sm);
}

.timeline-achievements {
    list-style: none;
}

.timeline-achievements li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    position: relative;
}

.timeline-achievements li::before {
    content: '•';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Projects Section */
.projects {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-secondary);
    transition: var(--theme-transition);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-light);
    transition: all var(--transition-normal);
}

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

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

.project-header h3 {
    color: var(--text-primary);
    margin-bottom: 0;
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.3px;
}

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

.project-links a {
    color: var(--text-secondary);
    font-size: var(--font-size-large);
    transition: color var(--transition-fast);
}

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

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

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

.project-tech span {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: var(--font-size-small);
    font-weight: 500;
    transition: var(--theme-transition);
}

.project-features {
    list-style: none;
}

.project-features li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-sm);
    position: relative;
}

.project-features li::before {
    content: '→';
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Skills Section */
.skills {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-primary);
    transition: var(--theme-transition);
}



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

.skill-category h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    text-align: center;
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.3px;
}

.skill-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    font-size: var(--font-size-base);
    text-align: center;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    justify-content: center;
}

.skill-item {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: var(--font-size-small);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.skill-item:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    transform: scale(1.05);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-secondary);
    transition: var(--theme-transition);
}

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

.contact-info h3,
.contact-social h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    transition: var(--theme-transition);
}

.contact-item i {
    color: var(--primary-color);
    width: 20px;
}

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

.contact-item a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--primary-color);
    transform: translateX(4px);
    box-shadow: var(--shadow-light);
}

.social-link i {
    color: var(--primary-color);
    width: 20px;
}

/* Footer */
.footer {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    transition: var(--theme-transition);
}

.footer-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: flex; 
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -100%; 
        width: 75%;
        height: 100vh;
        background-color: var(--bg-primary); 
        padding-top: 80px; 
        transition: right 0.3s ease-in-out;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        z-index: 998; 
    }

    
    .nav-menu.active {
        right: 0; 
    }

 
    .nav-menu li {
        width: 100%;
        text-align: center;
        margin: 10px 0;
    }

    .nav-menu a {
        display: block;
        font-size: var(--font-size-large);
        padding: 15px;
    }

    
    .nav-toggle {
        display: flex;
        z-index: 999; /* Ensure button stays on top of the menu */
    }

   
    .nav-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    
    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }
    
    .theme-toggle-fixed {
        top: 15px;
        right: 15px;
    }
    
    .theme-toggle-btn {
        width: 45px;
        height: 45px;
        font-size: var(--font-size-base);
    }
    
    .social-bubbles {
        gap: var(--spacing-xs);
        margin-top: var(--spacing-sm);
    }
    
    .social-bubble {
        width: 35px;
        height: 35px;
        font-size: var(--font-size-small);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .tech-stack {
        grid-template-columns: repeat(2, 1fr);
        max-width: 350px;
        margin: 0 auto;
        min-height: auto;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .stats-left {
        align-items: center;
    }
    
    .social-bubbles {
        gap: var(--spacing-xs);
        margin-top: var(--spacing-sm);
    }
    
    .bubble-row {
        gap: var(--spacing-xs);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .profile-card {
        position: static;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-marker {
        left: 20px;
    }
    
    .timeline-content {
        width: calc(100% - 40px);
        left: 40px !important;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .stats-left {
        align-items: center;
    }
    
    .social-bubbles {
        gap: var(--spacing-xs);
    }
    
    .bubble-row {
        gap: var(--spacing-xs);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-xs);
    }
    
    .hero-actions .btn {
        min-width: 200px;
        text-align: center;
    }
    
    .tech-stack {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling for anchor links */
html {
    scroll-padding-top: 80px;
}