/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@300;400;500;600;700&display=swap');

/* CSS Variables with Enhanced Color Palette */
:root {
    /* Enhanced Color Palette 2025 */
    --primary: #00f5ff;
    --primary-dark: #00d4e6;
    --secondary: #ff6b6b;
    --accent: #4ecdc4;
    --accent-light: #6ff4e8;
    --warning: #ffd93d;
    --success: #6bcf7f;
    
    /* Dark Theme (Default) */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-tertiary: #1a1a1a;
    --bg-card: #1c1c1c;
    --bg-glass: rgba(255, 255, 255, 0.05);
    
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-tertiary: #666666;
    --text-accent: var(--primary);
    
    --border: #333333;
    --border-light: #444444;
    --shadow: rgba(0, 0, 0, 0.5);
    --shadow-colored: rgba(0, 245, 255, 0.2);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, var(--warning) 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* Container Sizes */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1536px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Borders */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    
    /* 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 -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(0, 245, 255, 0.3);
    
    /* Container Queries */
    --container-padding: clamp(1rem, 5vw, 2rem);
    --section-padding: clamp(4rem, 10vw, 8rem) 0;
}

/* Light Theme Variables */
body.light-theme {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-card: #ffffff;
    --bg-glass: rgba(0, 0, 0, 0.05);
    
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-tertiary: #6a6a6a;
    
    --border: #e0e0e0;
    --border-light: #f0f0f0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-colored: rgba(0, 245, 255, 0.1);
}

/* Modern Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: clamp(14px, 1.5vw, 18px);
    line-height: 1.5;
}

body {
    opacity: 1 !important;
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container Query Support */
@supports (container-type: inline-size) {
    .container {
        container-type: inline-size;
    }
}

/* Container System */
.container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Matrix Background Effect */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.03;
    pointer-events: none;
}

/* Cursor Follower */
.cursor-follower {
    position: fixed;
    width: 20px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0;
    transition: opacity var(--transition-fast);
    mix-blend-mode: difference;
}

@media (hover: hover) and (pointer: fine) {
    .cursor-follower {
        opacity: 1;
    }
}

/* Enhanced Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.brand-bracket {
    color: var(--primary);
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-base);
    position: relative;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--border-radius-md);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-base);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-number {
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 400;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: 1001;
    border-radius: var(--border-radius-md);
    transition: background var(--transition-base);
}

.hamburger:hover {
    background: var(--bg-glass);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    margin: 3px 0;
    transition: all var(--transition-base);
    border-radius: 2px;
}

.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);
}

/* Enhanced Hero Section */
.hero {
    min-height: 100vh;
    display: flex !important;
    align-items: center;
    padding: var(--section-padding);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(0, 245, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: var(--container-xl);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    min-height: 80vh;
    opacity: 1 !important;
}

.hero-content {
    z-index: 1;
}

.hero-greeting {
    margin-bottom: var(--space-lg);
}

.greeting-text {
    font-family: var(--font-mono);
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.9;
}

.hero-name {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

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

.name-highlight::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    opacity: 0.6;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-weight: 700;
    line-height: 1.2;
}

#typing-text {
    position: relative;
    color: var(--primary);
}

#typing-text::after {
    content: '|';
    color: var(--primary);
    animation: blink 1s infinite;
    font-weight: 400;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    max-width: 90%;
    line-height: 1.7;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-xl);
    text-decoration: none;
    border-radius: var(--border-radius-xl);
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-bounce);
    position: relative;
    overflow: hidden;
    min-width: 160px;
    justify-content: center;
    border: 2px solid transparent;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left var(--transition-slow);
}

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

.cta-button.primary {
    background: var(--gradient-primary);
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow), var(--shadow-xl);
}

.cta-button.secondary {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--primary);
    backdrop-filter: blur(10px);
}

.cta-button.secondary:hover {
    background: var(--bg-glass);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* Enhanced Code Window */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.code-window {
    background: var(--bg-card);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    width: 100%;
    max-width: 500px;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform var(--transition-slow);
}

.code-window:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.window-header {
    background: var(--bg-tertiary);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.window-controls {
    display: flex;
    gap: var(--space-sm);
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-base);
}

.control:hover {
    transform: scale(1.2);
}

.control.close { background: #ff5f57; }
.control.minimize { background: #ffbd2e; }
.control.maximize { background: #28ca42; }

.window-title {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.code-content {
    padding: var(--space-xl);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    background: var(--bg-secondary);
}

.code-line {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-sm);
    transition: background var(--transition-base);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius-sm);
}

.code-line:hover {
    background: var(--bg-glass);
}

.line-number {
    color: var(--text-tertiary);
    margin-right: var(--space-lg);
    user-select: none;
    min-width: 20px;
    text-align: right;
    font-size: 0.8rem;
}

.keyword { color: #ff79c6; }
.variable { color: #8be9fd; }
.property { color: #50fa7b; }
.string { color: #f1fa8c; }
.operator { color: #ff79c6; }
.bracket { color: #f8f8f2; }
.indent { color: transparent; }

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    opacity: 0.7;
}

.scroll-line {
    width: 2px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 1px;
    animation: scrollLine 2s ease-in-out infinite;
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-weight: 500;
}

/* Enhanced Sections */
section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    margin-bottom: var(--space-4xl);
    text-align: center;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.section-number {
    font-family: var(--font-mono);
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 600;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 2px;
    background: var(--gradient-primary);
    margin-left: var(--space-lg);
    border-radius: 1px;
    max-width: 200px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.9;
}

/* About Section */
.about {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, rgba(76, 205, 196, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.about-text {
    z-index: 1;
}

.about-text p {
    margin-bottom: var(--space-xl);
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    font-weight: 400;
}

.about-text p:last-of-type {
    margin-bottom: var(--space-2xl);
}

.about-text strong {
    color: var(--primary);
    font-weight: 600;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.tech-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-bounce);
    cursor: pointer;
}

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

.tech-item i {
    font-size: 1.5rem;
    color: var(--primary);
}

.tech-item span {
    font-weight: 500;
    color: var(--text-primary);
}

.about-image {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.image-container {
    position: relative;
    border-radius: var(--border-radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    border: 3px solid var(--border);
    transition: all var(--transition-slow);
}

.image-container:hover {
    transform: scale(1.05);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow), var(--shadow-2xl);
}

.profile-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.3;
    transition: opacity var(--transition-base);
}

.image-container:hover .image-overlay {
    opacity: 0.1;
}

/* Projects Section */
.projects {
    background: var(--bg-primary);
    position: relative;
}

.projects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(255, 107, 107, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.featured-projects {
    margin-bottom: var(--space-4xl);
}

.project-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-2xl);
    overflow: hidden;
    transition: all var(--transition-bounce);
    margin-bottom: var(--space-2xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow), var(--shadow-2xl);
    border-color: var(--primary);
}

.project-card.featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 400px;
}

.project-card.featured:nth-child(even) {
    direction: rtl;
}

.project-card.featured:nth-child(even) .project-content {
    direction: ltr;
}

.project-image {
    position: relative;
    overflow: hidden;
    background: var(--bg-secondary);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.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: opacity var(--transition-base);
}

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

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-links {
    display: flex;
    gap: var(--space-lg);
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--bg-primary);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-bounce);
    font-size: 1.2rem;
}

.project-link:hover {
    transform: scale(1.2);
    background: var(--accent);
    box-shadow: var(--shadow-glow);
}

.project-content {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-header {
    margin-bottom: var(--space-xl);
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.3;
}

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

.project-tech span {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary);
    background: rgba(0, 245, 255, 0.1);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(0, 245, 255, 0.2);
    font-weight: 500;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
    font-weight: 400;
}

/* Other Projects */
.other-projects-title {
    text-align: center;
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--space-2xl);
    font-weight: 600;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.project-card.mini {
    background: var(--bg-card);
    padding: var(--space-2xl);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--border);
    transition: all var(--transition-bounce);
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card.mini::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.project-card.mini:hover::before {
    transform: scaleX(1);
}

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

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

.project-icons i {
    font-size: 2rem;
    color: var(--primary);
}

.project-card.mini .project-title {
    font-size: 1.2rem;
    margin: var(--space-md) 0;
}

.project-card.mini .project-description {
    flex-grow: 1;
    margin-bottom: var(--space-lg);
    font-size: 0.95rem;
}

.project-card.mini .project-tech {
    margin-top: auto;
}

/* Certificates Section */
.certificates {
    background: var(--bg-secondary);
    position: relative;
}

.certificates::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, rgba(255, 217, 61, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.certificates-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.tab-button {
    padding: var(--space-md) var(--space-xl);
    background: transparent;
    border: 2px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--border-radius-xl);
    cursor: pointer;
    transition: all var(--transition-bounce);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left var(--transition-base);
    z-index: -1;
}

.tab-button.active::before,
.tab-button:hover::before {
    left: 0;
}

.tab-button.active,
.tab-button:hover {
    border-color: var(--primary);
    color: var(--bg-primary);
    transform: translateY(-2px);
}

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

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

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

.certificate-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: all var(--transition-bounce);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

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

.certificate-image {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: var(--bg-secondary);
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.certificate-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: opacity var(--transition-base);
}

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

.certificate-card:hover .certificate-image img {
    transform: scale(1.1);
}

.view-certificate {
    background: var(--primary);
    color: var(--bg-primary);
    border: none;
    padding: var(--space-lg);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-bounce);
    font-size: 1.2rem;
}

.view-certificate:hover {
    transform: scale(1.2);
    background: var(--accent);
    box-shadow: var(--shadow-glow);
}

.certificate-content {
    padding: var(--space-xl);
}

.certificate-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.3;
}

.certificate-issuer {
    color: var(--primary);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    font-weight: 500;
}

.certificate-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    font-weight: 400;
}

/* Contact Section */
.contact {
    background: var(--bg-primary);
    text-align: center;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(0, 245, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    z-index: 1;
    position: relative;
}

.contact-text h3 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    font-weight: 700;
}

.contact-text p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    font-weight: 400;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.contact-method {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-2xl);
    background: var(--bg-card);
    border-radius: var(--border-radius-xl);
    text-decoration: none;
    transition: all var(--transition-bounce);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.contact-method::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.contact-method:hover::before {
    transform: scaleX(1);
}

.contact-method:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow), var(--shadow-xl);
    border-color: var(--primary);
}

.method-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.contact-method:hover .method-icon {
    transform: scale(1.1);
}

.method-content h4 {
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    font-size: 1.1rem;
    font-weight: 600;
}

.method-content p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9rem;
    font-weight: 400;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-card);
    color: var(--text-secondary);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-bounce);
    font-size: 1.2rem;
    border: 1px solid var(--border);
}

.social-link:hover {
    background: var(--primary);
    color: var(--bg-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    padding: var(--space-xl) 0;
    text-align: center;
    border-top: 1px solid var(--border);
}

.footer-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
    font-weight: 400;
}

.footer-tech {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    margin: 5% auto;
    max-width: 90%;
    max-height: 90%;
}

.modal-content img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-2xl);
}

.modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    transition: all var(--transition-base);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: 50%;
}

.modal-close:hover {
    color: var(--primary);
    transform: scale(1.1);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    color: var(--bg-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-bounce);
    z-index: 1000;
    box-shadow: var(--shadow-glow), var(--shadow-xl);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow), var(--shadow-2xl);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes scrollLine {
    0% { transform: translateY(-20px); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateY(20px); opacity: 0; }
}

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Selection */
::selection {
    background: var(--primary);
    color: var(--bg-primary);
}

/* Focus Styles */
button:focus,
a:focus,
input:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Container Queries */
@container (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .project-card.featured {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .project-card.featured {
        grid-template-columns: 1fr;
    }
    
    .section-title::after {
        display: none;
    }
    
    .section-title {
        flex-direction: column;
        gap: var(--space-md);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(17, 17, 17, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: var(--space-2xl);
        transition: left var(--transition-base);
        border-right: 1px solid var(--border);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        font-size: 1.2rem;
        padding: var(--space-lg);
    }
    
    .hero {
        min-height: auto;
        padding-top: 120px;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .certificates-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .certificates-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-button {
        width: 100%;
        max-width: 250px;
    }
    
    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
        --section-padding: 3rem 0;
    }
    
    .hero-name {
        font-size: clamp(2rem, 12vw, 3rem);
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 10vw, 2.5rem);
    }
    
    .section-title {
        font-size: clamp(1.5rem, 8vw, 2rem);
    }
    
    .code-window {
        transform: none;
    }
    
    .project-card.mini {
        padding: var(--space-lg);
    }
    
    .certificate-content {
        padding: var(--space-lg);
    }
    
    .contact-method {
        padding: var(--space-lg);
    }
    
    .modal-content {
        margin: 10% auto;
        max-width: 95%;
    }
    
    .theme-toggle {
        width: 50px;
        height: 50px;
        bottom: var(--space-lg);
        right: var(--space-lg);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .scroll-line {
        animation: none;
    }
    
    #typing-text::after {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #111111;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --primary: #00ffff;
        --border: #444444;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .theme-toggle,
    .hamburger,
    .scroll-indicator,
    #matrix-canvas,
    .cursor-follower {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero,
    .about,
    .projects,
    .certificates,
    .contact {
        page-break-inside: avoid;
    }
}