/* ================================
   CSS Variables & Theme
================================ */
:root {
    /* Colors */
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #0ea5e9;
    --accent: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Backgrounds */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: rgba(30, 41, 59, 0.8);
    
    /* Text */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
    
    /* Borders */
    --border-color: rgba(148, 163, 184, 0.1);
    --border-color-hover: rgba(148, 163, 184, 0.2);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    
    /* Spacing */
    --section-padding: 100px;
    --container-max: 1200px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #e2e8f0;
    --bg-card: rgba(255, 255, 255, 0.9);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: rgba(15, 23, 42, 0.1);
    --border-color-hover: rgba(15, 23, 42, 0.2);
    --gradient-hero: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f8fafc 100%);
}

/* ================================
   Reset & Base Styles
================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ================================
   Cursor Glow Effect
================================ */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease;
    opacity: 0;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ================================
   Navigation
================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(255, 255, 255, 0.85);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: 'Fira Code', monospace;
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 2px;
}

.logo-bracket {
    color: var(--primary);
}

.logo-text {
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    position: relative;
    transition: var(--transition-base);
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background: var(--border-color);
    transition: var(--transition-base);
}

.theme-toggle:hover {
    color: var(--primary);
    background: var(--border-color-hover);
}

.btn-nav {
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
    z-index: 1001;
}

.bar {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-base);
}

.hamburger.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ================================
   Hero Section
================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 80px;
}

.hero-bg-animation {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.sphere-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.sphere-2 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    bottom: -100px;
    left: -100px;
    animation-delay: -7s;
}

.sphere-3 {
    width: 300px;
    height: 300px;
    background: var(--secondary);
    top: 50%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(10px, 10px) scale(1.02); }
}

.hero-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* Hero Text */
.hero-text {
    animation: fadeInUp 1s ease-out;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--success);
    margin-bottom: 24px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
}

.greeting {
    display: block;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.name-highlight {
    display: block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.role-container {
    display: flex;
    align-items: center;
    gap: 4px;
    font-family: 'Fira Code', monospace;
    font-size: 1.25rem;
    margin-bottom: 24px;
}

.role-prefix {
    color: var(--text-muted);
}

.typed-role {
    color: var(--primary-light);
}

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

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

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 540px;
}

.hero-description strong {
    color: var(--text-primary);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 32px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border-color);
}

/* Hero Buttons */
.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.btn-primary {
    color: white;
    background: var(--gradient-primary);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-primary i {
    transition: transform var(--transition-base);
}

.btn-primary:hover i {
    transform: translateX(4px);
}

.btn-secondary {
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

/* Hero Social */
.hero-social {
    display: flex;
    gap: 12px;
}

.social-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition-base);
}

.social-icon:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-3px);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.profile-card {
    position: relative;
}

.profile-image-wrapper {
    position: relative;
    width: 280px;
    height: 280px;
}

.profile-ring {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    background: var(--gradient-primary);
    animation: rotate 10s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.profile-ring::before {
    content: '';
    position: absolute;
    inset: 4px;
    background: var(--bg-primary);
    border-radius: 50%;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    backdrop-filter: blur(10px);
    animation: bounce 3s infinite ease-in-out;
}

.badge-react {
    top: 0;
    left: -30px;
    color: #61dafb;
    animation-delay: 0s;
}

.badge-node {
    top: 20px;
    right: -40px;
    color: #339933;
    animation-delay: 0.5s;
}

.badge-docker {
    bottom: 40px;
    left: -50px;
    color: #2496ed;
    animation-delay: 1s;
}

.badge-git {
    bottom: 0;
    right: -20px;
    color: #f05032;
    animation-delay: 1.5s;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Code Snippet */
.code-snippet {
    position: relative;
    width: 320px;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-xl), 0 0 40px rgba(99, 102, 241, 0.15);
    z-index: 10;
}

[data-theme="light"] .code-snippet {
    background: rgba(30, 41, 59, 0.98);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27ca40; }

.code-title {
    margin-left: auto;
    font-family: 'Fira Code', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.code-content {
    padding: 16px;
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
    line-height: 1.6;
    overflow-x: auto;
}

.code-content .keyword { color: #c792ea; }
.code-content .variable { color: #82aaff; }
.code-content .property { color: #89ddff; }
.code-content .string { color: #c3e88d; }
.code-content .boolean { color: #ff9cac; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: fadeIn 1s ease-out 1s backwards;
}

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

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ================================
   Section Styles
================================ */
section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.section-tag.closing {
    display: block;
    text-align: center;
    margin-top: 60px;
    margin-bottom: 0;
    color: var(--text-muted);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ================================
   About Section
================================ */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-text p.lead {
    font-size: 1.15rem;
    color: var(--text-primary);
}

.about-text strong {
    color: var(--primary-light);
}

.highlight-text {
    padding: 20px 24px;
    background: rgba(99, 102, 241, 0.1);
    border-left: 3px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-secondary);
    position: relative;
}

.highlight-text i {
    position: absolute;
    top: 16px;
    left: 20px;
    color: var(--primary);
    opacity: 0.5;
    font-size: 1.2rem;
}

.about-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.info-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.info-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.info-content h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-content p {
    color: var(--text-primary);
    font-weight: 500;
}

/* ================================
   Skills Section
================================ */
.skills {
    background: var(--bg-primary);
}

.skills-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.tab-btn:hover {
    color: var(--text-primary);
    border-color: var(--border-color-hover);
}

.tab-btn.active {
    color: white;
    background: var(--gradient-primary);
    border-color: transparent;
}

.tab-content {
    display: none;
    animation: fadeInUp 0.5s ease-out;
}

.tab-content.active {
    display: block;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.skill-category {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.skill-category:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.skill-category.highlight-category {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    position: relative;
}

.category-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-size: 1.1rem;
}

.category-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.new-badge {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    padding: 4px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--success);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-full);
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    transition: var(--transition-base);
}

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

.skill-item i {
    font-size: 1rem;
}

/* Soft Skills */
.soft-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.soft-skill-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.soft-skill-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.soft-skill-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    color: var(--primary);
    font-size: 1.5rem;
}

.soft-skill-card h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
}

.soft-skill-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ================================
   Experience Section
================================ */
.experience {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 24px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
}

.timeline-item {
    position: relative;
    padding-left: 80px;
    padding-bottom: 48px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
}

.marker-dot {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: white;
    font-size: 1.1rem;
    box-shadow: 0 0 0 8px var(--bg-secondary);
}

.marker-dot.military {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition-base);
}

.timeline-content:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.timeline-title h3 {
    font-size: 1.3rem;
    margin-bottom: 4px;
}

.timeline-title .company {
    color: var(--primary);
    font-weight: 500;
}

.timeline-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.timeline-badge.current {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

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

.achievement-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.achievement-item {
    display: flex;
    gap: 16px;
}

.achievement-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary);
    flex-shrink: 0;
}

.achievement-content h4 {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.achievement-content p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.experience-description {
    line-height: 1.7;
    margin-bottom: 20px;
}

.skills-gained {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: #22c55e;
}

/* ================================
   Education Section
================================ */
.education {
    background: var(--bg-primary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.education-card {
    position: relative;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.education-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.education-card.current {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, transparent 100%);
}

.education-status {
    position: absolute;
    top: 24px;
    right: 24px;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.status-badge.active {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.status-badge.active .pulse {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-badge.completed {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.education-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.education-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.education-content h4 {
    font-size: 0.95rem;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 500;
}

.education-period {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

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

/* Language Section */
.language-section {
    max-width: 600px;
    margin: 0 auto;
}

.language-card {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.language-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    color: var(--primary);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.language-content h4 {
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.language-content p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.language-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.lang-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ================================
   Contact Section
================================ */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-intro h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.contact-intro p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    cursor: pointer;
}

.contact-card:hover {
    border-color: var(--primary);
    transform: translateX(8px);
}

.contact-card.location {
    cursor: default;
}

.contact-card.location:hover {
    transform: none;
}

.contact-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-card-content h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-card-content p {
    color: var(--text-primary);
    font-weight: 500;
}

.contact-arrow {
    margin-left: auto;
    color: var(--text-muted);
    transition: var(--transition-base);
}

.contact-card:hover .contact-arrow {
    color: var(--primary);
    transform: translateX(4px);
}

.contact-social h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.social-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.social-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.social-card:hover {
    transform: translateY(-4px);
}

.social-card.linkedin:hover {
    border-color: #0077b5;
    background: rgba(0, 119, 181, 0.1);
}

.social-card.github:hover {
    border-color: #6e5494;
    background: rgba(110, 84, 148, 0.1);
}

.social-card i {
    font-size: 1.5rem;
}

.social-card.linkedin i { color: #0077b5; }
.social-card.github i { color: #6e5494; }

.social-card span {
    font-weight: 600;
}

.social-card small {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ================================
   Footer
================================ */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
}

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

.footer-logo {
    font-family: 'Fira Code', monospace;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-text {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.footer-text i {
    color: #ef4444;
}

.footer-copyright {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ================================
   Scroll to Top Button
================================ */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    color: white;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    border: none;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

/* ================================
   Responsive Design
================================ */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-text h1 {
        font-size: 2.75rem;
    }
    
    .hero-description {
        max-width: none;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-social {
        justify-content: center;
    }
    
    .code-snippet {
        position: relative;
        right: auto;
        width: 100%;
        max-width: 300px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        transform: translateX(-100%);
        transition: var(--transition-base);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .nav-actions {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-text h1 {
        font-size: 2.25rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .profile-image-wrapper {
        width: 220px;
        height: 220px;
    }
    
    .floating-badge {
        display: none;
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-line {
        left: 16px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .marker-dot {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
    
    .language-card {
        flex-direction: column;
        text-align: center;
    }
    
    .language-skills {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 60px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-text h1 {
        font-size: 1.875rem;
    }
    
    .role-container {
        font-size: 1rem;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .achievement-item {
        flex-direction: column;
    }
    
    .skills-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
        justify-content: center;
    }
}

/* ================================
   Animations for Elements
================================ */
[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}