/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Modern DevOps Theme */
    --primary-color: #00ff88;
    --primary-dark: #00cc6a;
    --secondary-color: #ff4757;
    --accent-color: #3742fa;
    --success-color: #2ed573;
    --warning-color: #ffa502;
    --error-color: #ff3838;
    --purple: #a55eea;
    
    /* Dark Theme Colors */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --bg-glass: rgba(26, 26, 26, 0.8);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Light Theme Colors */
    --bg-light-primary: #ffffff;
    --bg-light-secondary: #f8f9fa;
    --bg-light-tertiary: #e9ecef;
    --text-light-primary: #2c3e50;
    --text-light-secondary: #5a6c7d;
    --text-light-muted: #8e9aaf;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-secondary: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Font Sizes */
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 1.875rem;
    --fs-4xl: 2.25rem;
    --fs-5xl: 3rem;
    --fs-6xl: 3.75rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 212, 255, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 212, 255, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 212, 255, 0.2);
    --shadow-xl: 0 12px 48px rgba(0, 212, 255, 0.25);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.4);
    --shadow-glow-lg: 0 0 40px rgba(0, 212, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* ===== BASE STYLES ===== */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Light Theme */
body.light-theme {
    --bg-primary: var(--bg-light-primary);
    --bg-secondary: var(--bg-light-secondary);
    --bg-tertiary: var(--bg-light-tertiary);
    --text-primary: var(--text-light-primary);
    --text-secondary: var(--text-light-secondary);
    --text-muted: var(--text-light-muted);
    --border-color: rgba(0, 0, 0, 0.1);
}

/* ===== LOADING SCREEN ===== */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-container {
    text-align: center;
}

.loading-logo {
    width: 80px;
    height: 80px;
    border: 3px solid var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    animation: pulse 2s infinite;
}

.loading-text {
    font-family: var(--font-secondary);
    font-size: var(--fs-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

.loading-progress {
    width: 200px;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin: var(--spacing-md) auto;
    overflow: hidden;
}

.loading-bar {
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-sm);
    animation: loading 3s ease-in-out infinite;
}

.loading-message {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    margin-top: var(--spacing-sm);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.7); }
    50% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(0, 212, 255, 0); }
}

@keyframes loading {
    0% { width: 0; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* ===== PARTICLE BACKGROUND ===== */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
}

/* ===== CURSOR EFFECTS ===== */
.cursor,
.cursor-follower {
    position: fixed;
    border-radius: 50%;
    transform: translateX(-50%) translateY(-50%);
    pointer-events: none;
    z-index: 9998;
    mix-blend-mode: difference;
}

.cursor {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    transition: width 0.3s, height 0.3s;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    transition: all 0.3s ease;
}

.cursor.expand {
    width: 16px;
    height: 16px;
}

.cursor-follower.expand {
    width: 60px;
    height: 60px;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 300% 300%;
    animation: gradient-shift 4s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-family: var(--font-secondary);
    font-size: var(--fs-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-sm);
}

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

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: var(--z-fixed);
    transition: all var(--transition-medium);
    padding: var(--spacing-sm) 0;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xs) 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    font-family: var(--font-secondary);
    font-size: var(--fs-xl);
    font-weight: 700;
    position: relative;
}

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

.brand-accent {
    color: var(--primary-color);
    margin-left: 2px;
}

.brand-indicator {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: var(--radius-full);
    margin-left: var(--spacing-sm);
    animation: pulse 2s infinite;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-medium);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-medium);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.cta-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-slow);
}

.cta-btn:hover::before {
    left: 100%;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition-medium);
    border-radius: var(--radius-xs);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--spacing-3xl) 0;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text {
    max-width: 600px;
}

.hero-greeting {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.hero-title {
    font-family: var(--font-secondary);
    font-size: var(--fs-6xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.typing-animation {
    display: inline-block;
    border-right: 3px solid var(--primary-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { border-color: var(--primary-color); }
    51%, 100% { border-color: transparent; }
}

.hero-subtitle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
}

.subtitle-separator {
    color: var(--primary-color);
    font-weight: 300;
}

.rotating-text {
    position: relative;
    height: 1.5em;
    overflow: hidden;
}

.rotating-text span {
    position: absolute;
    top: 0;
    left: 0;
    color: var(--accent-color);
    opacity: 0;
    transform: translateY(100%);
    animation: rotate-text 8s infinite;
}

.rotating-text span:nth-child(1) { animation-delay: 0s; }
.rotating-text span:nth-child(2) { animation-delay: 2s; }
.rotating-text span:nth-child(3) { animation-delay: 4s; }
.rotating-text span:nth-child(4) { animation-delay: 6s; }

@keyframes rotate-text {
    0%, 20% { opacity: 0; transform: translateY(100%); }
    25%, 45% { opacity: 1; transform: translateY(0); }
    50%, 100% { opacity: 0; transform: translateY(-100%); }
}

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

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.stat-number {
    display: block;
    font-family: var(--font-secondary);
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

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

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    font-size: var(--fs-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

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

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

/* ===== HERO VISUAL ===== */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-orbit {
    position: relative;
    width: 400px;
    height: 400px;
}

.orbit-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    z-index: 10;
}

.center-icon {
    width: 50px;
    height: 50px;
    filter: brightness(0) invert(1);
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-full);
    animation: rotate 20s linear infinite;
}

.ring-1 {
    width: 200px;
    height: 200px;
    animation-duration: 15s;
}

.ring-2 {
    width: 300px;
    height: 300px;
    animation-duration: 25s;
    animation-direction: reverse;
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-item {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-medium);
    cursor: pointer;
}

.orbit-item:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-glow);
}

.orbit-item img {
    width: 24px;
    height: 24px;
}

/* Ring 1 positioning */
.ring-1 .orbit-item:nth-child(1) { top: -20px; left: 50%; transform: translateX(-50%); }
.ring-1 .orbit-item:nth-child(2) { top: 50%; right: -20px; transform: translateY(-50%); }
.ring-1 .orbit-item:nth-child(3) { bottom: -20px; left: 50%; transform: translateX(-50%); }
.ring-1 .orbit-item:nth-child(4) { top: 50%; left: -20px; transform: translateY(-50%); }

/* Ring 2 positioning */
.ring-2 .orbit-item:nth-child(1) { top: -20px; left: 50%; transform: translateX(-50%); }
.ring-2 .orbit-item:nth-child(2) { top: 25%; right: -20px; transform: translateY(-50%); }
.ring-2 .orbit-item:nth-child(3) { bottom: 25%; right: -20px; transform: translateY(50%); }
.ring-2 .orbit-item:nth-child(4) { bottom: -20px; left: 50%; transform: translateX(-50%); }
.ring-2 .orbit-item:nth-child(5) { bottom: 25%; left: -20px; transform: translateY(50%); }
.ring-2 .orbit-item:nth-child(6) { top: 25%; left: -20px; transform: translateY(-50%); }

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-size: var(--fs-sm);
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(10px); opacity: 0.5; }
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-intro h3 {
    font-family: var(--font-secondary);
    font-size: var(--fs-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

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

.about-highlights {
    margin-bottom: var(--spacing-xl);
}

.highlight-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.highlight-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--fs-lg);
}

.highlight-content h4 {
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.highlight-content p {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
    line-height: 1.5;
}

.about-personal h4 {
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.about-personal p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-visual {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.profile-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    backdrop-filter: blur(20px);
    transition: var(--transition-medium);
}

.profile-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.profile-image {
    margin-bottom: var(--spacing-lg);
}

.image-placeholder {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    color: white;
    font-size: var(--fs-4xl);
}

.profile-info h3 {
    font-family: var(--font-secondary);
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-xs);
}

.profile-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.profile-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: left;
}

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

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

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

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

.achievements-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.achievement-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: var(--transition-medium);
}

.achievement-card:hover {
    transform: scale(1.05);
    border-color: var(--primary-color);
}

.achievement-icon {
    font-size: var(--fs-2xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.achievement-card h4 {
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.achievement-card p {
    font-size: var(--fs-xs);
    color: var(--text-secondary);
}

/* ===== SKILLS SECTION ===== */
.skills {
    padding: var(--spacing-3xl) 0;
}

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

.skill-category {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(20px);
    transition: var(--transition-medium);
}

.skill-category:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.category-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--fs-lg);
}

.category-header h3 {
    font-family: var(--font-secondary);
    font-size: var(--fs-xl);
    color: var(--text-primary);
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.skill-item {
    position: relative;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
}

.skill-level {
    font-size: var(--fs-sm);
    color: var(--primary-color);
    font-weight: 600;
}

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-sm);
    width: 0;
    transition: width 2s ease-in-out;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3));
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.timeline-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--fs-lg);
    box-shadow: var(--shadow-glow);
}

.timeline-content {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    width: calc(50% - 40px);
    backdrop-filter: blur(20px);
    transition: var(--transition-medium);
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: auto;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
}

.timeline-content:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

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

.timeline-meta h3 {
    font-family: var(--font-secondary);
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--primary-color);
}

.timeline-meta h4 {
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.timeline-period {
    font-size: var(--fs-sm);
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.company-logo {
    flex-shrink: 0;
}

.logo-placeholder {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--fs-lg);
}

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

.achievements-list {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.achievements-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    line-height: 1.6;
}

.achievements-list i {
    color: var(--primary-color);
    margin-top: 4px;
    flex-shrink: 0;
}

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

.tech-tag {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--fs-xs);
    font-weight: 500;
    border: 1px solid var(--primary-color);
    transition: var(--transition-medium);
}

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

/* ===== PROJECTS SECTION ===== */
.projects {
    padding: var(--spacing-3xl) 0;
}

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

.project-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-medium);
    backdrop-filter: blur(20px);
}

.project-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.project-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-medium);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

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

.project-link {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition-medium);
}

.project-link:hover {
    background: var(--accent-color);
    transform: scale(1.1);
}

.project-icon {
    font-size: var(--fs-4xl);
    color: var(--primary-color);
    opacity: 0.3;
}

.project-content {
    padding: var(--spacing-xl);
}

.project-title {
    font-family: var(--font-secondary);
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

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

.project-stats {
    display: flex;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--fs-sm);
    color: var(--text-muted);
}

.stat i {
    color: var(--primary-color);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-intro h3 {
    font-family: var(--font-secondary);
    font-size: var(--fs-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.contact-intro p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

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

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
}

.contact-method:hover {
    transform: translateX(10px);
    border-color: var(--primary-color);
}

.method-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--fs-lg);
    flex-shrink: 0;
}

.method-content h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.method-content p,
.method-content a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-medium);
}

.method-content a:hover {
    color: var(--primary-color);
}

.availability {
    padding: var(--spacing-md);
    background: var(--bg-glass);
    border-radius: var(--radius-lg);
    border: 1px solid var(--success-color);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--success-color);
}

.status-dot {
    width: 12px;
    height: 12px;
    background: var(--success-color);
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

.availability p {
    color: var(--text-secondary);
    font-size: var(--fs-sm);
}

.contact-form-container {
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(20px);
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--fs-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition-medium);
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

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

.footer-brand .brand {
    display: flex;
    align-items: center;
    font-family: var(--font-secondary);
    font-size: var(--fs-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

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

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

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-medium);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: var(--fs-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-medium);
}

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

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    border-radius: var(--radius-full);
    color: white;
    font-size: var(--fs-lg);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
    z-index: var(--z-fixed);
    box-shadow: var(--shadow-lg);
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: row !important;
        padding-left: 70px;
    }
    
    .timeline-marker {
        left: 30px;
        transform: none;
    }
    
    .timeline-content {
        width: 100%;
        margin: 0 !important;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    :root {
        --fs-6xl: 2.5rem;
        --fs-5xl: 2rem;
        --fs-4xl: 1.75rem;
        --fs-3xl: 1.5rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-lg);
        border-top: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-medium);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu li {
        padding: var(--spacing-sm) 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-actions {
        gap: var(--spacing-sm);
    }
    
    .cta-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--fs-sm);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .tech-orbit {
        width: 300px;
        height: 300px;
    }
    
    .ring-1 {
        width: 150px;
        height: 150px;
    }
    
    .ring-2 {
        width: 200px;
        height: 200px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .section-header {
        margin-bottom: var(--spacing-2xl);
    }
    
    .timeline {
        padding-left: 0;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-marker {
        left: 20px;
    }
    
    .timeline-icon {
        width: 40px;
        height: 40px;
        font-size: var(--fs-base);
    }
    
    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 45px;
        height: 45px;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .navbar,
    .scroll-indicator,
    .back-to-top,
    #particles-js {
        display: none !important;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }
    
    .section {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus indicators for keyboard navigation */
a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--accent-color), var(--primary-color));
}

/* ===== SELECTION STYLES ===== */
::selection {
    background: var(--primary-color);
    color: white;
}

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