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

:root {
    /* Dark Theme Color Scheme */
    --primary-color: #6366f1;
    --primary-light: #8b5cf6;
    --primary-dark: #4338ca;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    
    /* Dark Theme Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-glass: rgba(255, 255, 255, 0.05);
    --bg-glass-hover: rgba(255, 255, 255, 0.1);
    --surface: #0f172a;
    --surface-secondary: #1e293b;
    --surface-tertiary: #334155;
    
    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-inverse: #0f172a;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --black: #000000;
    
    /* Typography */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-tertiary) 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Loading Screen */
#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

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

.loader {
    text-align: center;
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    background: var(--bg-glass);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.loader-circle {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(99, 102, 241, 0.3);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    margin: 0 auto var(--space-4);
    animation: spin 1s linear infinite;
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all var(--transition-normal);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid rgba(99, 102, 241, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo .logo-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.02em;
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-8);
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    transition: all var(--transition-fast);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    text-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

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

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
    box-shadow: 0 0 10px rgba(248, 250, 252, 0.3);
}

.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;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 80% 30%, rgba(139, 92, 246, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 40% 70%, rgba(6, 182, 212, 0.06) 0%, transparent 30%),
        radial-gradient(circle at 90% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 20%);
    animation: float 20s ease-in-out infinite, pulse 8s ease-in-out infinite alternate;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

@keyframes pulse {
    0% { opacity: 0.5; }
    100% { opacity: 0.8; }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
    z-index: 1;
}

.hero-text {
    animation: slideInLeft 1s ease-out;
}

.hero-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    text-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
    letter-spacing: -0.02em;
}

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

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

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

.hero-subtitle {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    margin-bottom: var(--space-8);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-family: var(--font-family-heading);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
}

.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: left var(--transition-slow);
}

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

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

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.hero-image {
    display: flex;
    justify-content: center;
    animation: slideInRight 1s ease-out;
}

.profile-card {
    position: relative;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    box-shadow: 0 25px 45px rgba(0, 0, 0, 0.3), 0 0 50px rgba(99, 102, 241, 0.2);
    transform: perspective(1000px) rotateY(-5deg);
    transition: all var(--transition-slow);
}

.profile-card:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.05);
    background: var(--bg-glass-hover);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4), 0 0 80px rgba(99, 102, 241, 0.3);
    border-color: rgba(99, 102, 241, 0.3);
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    position: relative;
}

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

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

.scroll-indicator {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    color: var(--primary-color);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.scroll-arrow:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.4);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Section Styles */
section {
    padding: var(--space-20) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
    position: relative;
    text-shadow: 0 0 30px rgba(99, 102, 241, 0.2);
    letter-spacing: -0.02em;
}

.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(--secondary-color));
    border-radius: var(--radius-full);
}

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

/* About Section */
.about {
    background: var(--surface);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(6, 182, 212, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.about-info {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
}

.stat-item {
    text-align: center;
    padding: var(--space-6);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(99, 102, 241, 0.2);
    background: var(--bg-glass-hover);
    border-color: rgba(99, 102, 241, 0.3);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

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

.skills-section h3 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-6);
    letter-spacing: -0.01em;
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-4);
}

.skill-item {
    background: var(--bg-glass);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-normal);
}

.skill-item:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3), 0 0 20px rgba(99, 102, 241, 0.3);
    border-color: var(--primary-color);
    background: var(--bg-glass-hover);
}

.skill-icon {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    margin-bottom: var(--space-2);
}

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

/* Experience Section */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--space-4) 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: var(--radius-full);
    z-index: 1;
}

.timeline-item {
    padding: var(--space-6) var(--space-8);
    position: relative;
    background-color: inherit;
    width: 50%;
    animation: fadeInUp 0.6s ease-out;
    box-sizing: border-box;
    display: flex;
    justify-content: flex-end;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: var(--white);
    border: 4px solid var(--primary-color);
    top: 30px;
    border-radius: 50%;
    z-index: 2;
    box-shadow: var(--shadow);
}

.timeline-item.left {
    left: 0;
    justify-content: flex-end;
}

.timeline-item.left::after {
    right: -12px;
}

.timeline-item.right {
    left: 50%;
    justify-content: flex-start;
}

.timeline-item.right::after {
    left: -12px;
}

.timeline-content {
    padding: var(--space-6);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-normal);
    width: 100%;
    max-width: 400px;
}

.timeline-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.4), 0 0 30px rgba(99, 102, 241, 0.2);
    background: var(--bg-glass-hover);
    border-color: rgba(99, 102, 241, 0.3);
}

.timeline-date {
    color: var(--primary-light);
    font-family: var(--font-family-mono);
    font-weight: 500;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
    background: rgba(99, 102, 241, 0.1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius);
    border: 1px solid rgba(99, 102, 241, 0.2);
    display: inline-block;
}

.timeline-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: var(--space-2) 0;
    letter-spacing: -0.01em;
}

.timeline-company {
    font-family: var(--font-family-mono);
    font-size: var(--font-size-base);
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--space-3);
    letter-spacing: 0.02em;
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.skill-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--white);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-family: var(--font-family-mono);
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

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

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

.projects::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 60% 30%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 30% 70%, rgba(16, 185, 129, 0.06) 0%, transparent 50%);
    pointer-events: none;
}

.projects-filter {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-3) var(--space-6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-8);
}

.project-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-normal);
    opacity: 1;
    transform: scale(1);
}

.project-card.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(99, 102, 241, 0.3);
    background: var(--bg-glass-hover);
    border-color: rgba(99, 102, 241, 0.3);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    position: relative;
    overflow: hidden;
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

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

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

.project-content {
    padding: var(--space-6);
}

.project-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.tech-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(99, 102, 241, 0.2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    backdrop-filter: blur(5px);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.contact-cards {
    display: grid;
    gap: var(--space-6);
}

.contact-card {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    text-align: center;
    transition: all var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.4), 0 0 30px rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
    background: var(--bg-glass-hover);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    color: var(--white);
    font-size: var(--font-size-xl);
}

.contact-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.contact-info {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

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

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

.contact-form-container {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.contact-form {
    display: grid;
    gap: var(--space-6);
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-4) var(--space-4) var(--space-4) 0;
    border: none;
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    background: transparent;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    transition: all var(--transition-normal);
    resize: vertical;
    outline: none;
    font-family: var(--font-family);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-bottom-color: var(--primary-color);
    box-shadow: 0 2px 0 var(--primary-color);
}

.form-group label {
    position: absolute;
    top: var(--space-4);
    left: 0;
    font-size: var(--font-size-base);
    color: var(--text-muted);
    transition: all var(--transition-normal);
    pointer-events: none;
    transform-origin: left;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    transform: translateY(-5px) scale(0.9);
}

/* Footer */
.footer {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: var(--space-8) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.02) 100%);
    pointer-events: none;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.social-links {
    display: flex;
    gap: var(--space-4);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: var(--font-size-lg);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
    border-color: var(--primary-color);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 50px;
    height: 50px;
    background: var(--bg-glass);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    font-size: var(--font-size-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

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

.back-to-top:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.4);
    border-color: var(--primary-color);
}

/* Responsive Design */
    @media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-glass);
        backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        padding: var(--space-4) 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--space-8);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .timeline::after {
        left: 30px;
        transform: none;
        margin-left: 0;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
        justify-content: flex-start;
    }

    .timeline-item.left,
    .timeline-item.right {
        left: 0%;
        justify-content: flex-start;
    }

    .timeline-item.left::after,
    .timeline-item.right::after {
        left: 20px;
        right: auto;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .skills-container {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }

    .hero-buttons {
        justify-content: center;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .profile-card {
        transform: none;
    }

    .profile-image {
        width: 250px;
        height: 250px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-3);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .btn {
        padding: var(--space-2) var(--space-4);
        font-size: var(--font-size-sm);
    }

    .profile-image {
        width: 200px;
        height: 200px;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-container {
        padding: var(--space-6);
    }
}

/* Enhanced Animations */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.6s ease-out;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Floating Animation for Cards */
@keyframes floatY {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Glowing Animation */
@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.2); }
    50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.4); }
}

/* Background Animation */
@keyframes backgroundShift {
    0% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(-10px) translateY(-10px); }
    50% { transform: translateX(10px) translateY(-5px); }
    75% { transform: translateX(-5px) translateY(10px); }
    100% { transform: translateX(0) translateY(0); }
}

/* Particle Movement */
@keyframes particle1 {
    0% { transform: translate(0, 0) rotate(0deg); opacity: 0.3; }
    25% { transform: translate(100px, -50px) rotate(90deg); opacity: 0.8; }
    50% { transform: translate(-50px, -100px) rotate(180deg); opacity: 0.5; }
    75% { transform: translate(-100px, 50px) rotate(270deg); opacity: 0.8; }
    100% { transform: translate(0, 0) rotate(360deg); opacity: 0.3; }
}

@keyframes particle2 {
    0% { transform: translate(0, 0) scale(1); opacity: 0.2; }
    33% { transform: translate(-80px, 120px) scale(1.5); opacity: 0.6; }
    66% { transform: translate(120px, -80px) scale(0.8); opacity: 0.4; }
    100% { transform: translate(0, 0) scale(1); opacity: 0.2; }
}

/* Enhanced Particle System */
.hero-background::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.15) 2px, transparent 2px),
        radial-gradient(circle at 85% 85%, rgba(139, 92, 246, 0.1) 1px, transparent 1px),
        radial-gradient(circle at 50% 30%, rgba(6, 182, 212, 0.08) 1.5px, transparent 1.5px),
        radial-gradient(circle at 30% 70%, rgba(245, 158, 11, 0.06) 1px, transparent 1px);
    background-size: 150px 150px, 200px 200px, 100px 100px, 120px 120px;
    animation: backgroundShift 20s ease-in-out infinite;
    pointer-events: none;
}

/* Floating Elements */
.floating-element {
    position: absolute;
    pointer-events: none;
    opacity: 0.6;
}

.floating-element-1 {
    top: 20%;
    left: 10%;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.1));
    border-radius: 50%;
    animation: particle1 25s linear infinite;
    backdrop-filter: blur(5px);
}

.floating-element-2 {
    top: 60%;
    right: 15%;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(245, 158, 11, 0.1));
    border-radius: 30%;
    animation: particle2 30s linear infinite reverse;
    backdrop-filter: blur(5px);
}

.floating-element-3 {
    bottom: 30%;
    left: 20%;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(99, 102, 241, 0.1));
    border-radius: 40%;
    animation: floatY 8s ease-in-out infinite;
    backdrop-filter: blur(8px);
}

/* Enhanced Button Hover Effects */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    transition: all 0.6s ease;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

.btn:hover::after {
    width: 300px;
    height: 300px;
}

/* Card Hover Animations */
.stat-item, .skill-item, .project-card, .contact-card {
    animation: floatY 6s ease-in-out infinite;
}

.stat-item:nth-child(2n) { animation-delay: -1s; }
.skill-item:nth-child(3n) { animation-delay: -2s; }
.project-card:nth-child(2n) { animation-delay: -1.5s; }
.contact-card:nth-child(2n) { animation-delay: -0.5s; }

/* Text Glow Effects */
.hero-title {
    animation: glow 4s ease-in-out infinite alternate;
}

/* Loading Animation Enhancement */
.loader-circle {
    position: relative;
}

.loader-circle::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, transparent, rgba(99, 102, 241, 0.4), transparent);
    animation: spin 2s linear infinite reverse;
}