:root {
    /* Color System - Data-inspired palette */
    --primary: #0A0E27;
    --secondary: #1A1F3A;
    --accent: #00D9FF;
    --accent-secondary: #7B61FF;
    --text-primary: #E8E9ED;
    --text-secondary: #A0A3B5;
    --text-muted: #6B6E82;
    --bg-dark: #050816;
    --bg-card: #0F1629;
    --border-color: rgba(0, 217, 255, 0.1);
    --success: #00E5A0;
    --warning: #FFB800;
    
    /* Typography */
    --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(123, 97, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 217, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(0, 229, 160, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(5, 8, 22, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-base);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition-base);
}

.logo:hover::after {
    width: 100%;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition-base);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    position: relative;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

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

.hero-tag {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid var(--accent);
    border-radius: 50px;
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-md);
    animation: fadeIn 1s ease-out 0.2s backwards;
}

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

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.name-primary {
    display: block;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.name-secondary {
    display: block;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease-out 0.5s backwards;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: #00C4E6;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 217, 255, 0.3);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    background: rgba(0, 217, 255, 0.05);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.hero-links {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 1s ease-out 0.6s backwards;
}

.hero-links a {
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.hero-links a:hover {
    color: var(--accent);
    transform: translateY(-3px);
}

.hero-visual {
    animation: fadeInRight 1s ease-out 0.4s backwards;
}

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

.profile-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.05), rgba(123, 97, 255, 0.05));
    pointer-events: none;
}

.profile-image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent);
    box-shadow: 0 0 30px rgba(0, 217, 255, 0.3);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: rgba(0, 217, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(0, 217, 255, 0.1);
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

@keyframes scrollPulse {
    0%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    50% {
        opacity: 1;
        transform: translateY(10px);
    }
}

/* Section Styling */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--accent);
}

.title-text {
    position: relative;
}

.title-text::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), transparent);
}

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

.about-content {
    display: grid;
    gap: var(--spacing-lg);
}

.about-text .lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.education-grid {
    display: grid;
    gap: var(--spacing-md);
}

.education-card {
    display: flex;
    gap: 1.5rem;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: var(--transition-base);
}

.education-card:hover {
    border-color: var(--accent);
    transform: translateX(10px);
    box-shadow: 0 10px 40px rgba(0, 217, 255, 0.1);
}

.degree-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.degree-content h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.institution {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.year {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Experience Section */
.timeline {
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent), transparent);
}

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

.timeline-marker {
    position: absolute;
    left: -3.4rem;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border-radius: 50%;
    border: 3px solid var(--bg-dark);
    box-shadow: 0 0 0 4px rgba(0, 217, 255, 0.2);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: var(--transition-base);
}

.timeline-content:hover {
    border-color: var(--accent);
    box-shadow: 0 10px 40px rgba(0, 217, 255, 0.1);
}

.job-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    flex-wrap: wrap;
    gap: 1rem;
}

.job-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.company {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.job-meta {
    text-align: right;
}

.location,
.duration {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.award {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 184, 0, 0.1);
    border: 1px solid var(--warning);
    border-radius: 8px;
    color: var(--warning);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.achievements {
    list-style: none;
    display: grid;
    gap: 0.75rem;
}

.achievements li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.achievements li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 1.2rem;
}

/* Projects Section */
.projects {
    background: var(--secondary);
}

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

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: var(--spacing-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-base);
}

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

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 217, 255, 0.15);
}

.project-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    color: rgba(0, 217, 255, 0.2);
    font-weight: 700;
    margin-bottom: 1rem;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

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

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.tech-tag {
    padding: 0.4rem 0.8rem;
    background: rgba(123, 97, 255, 0.1);
    border: 1px solid rgba(123, 97, 255, 0.2);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--accent-secondary);
    font-weight: 500;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.project-link:hover {
    gap: 0.75rem;
}

.project-link svg {
    transition: var(--transition-fast);
}

.project-link:hover svg {
    transform: translateX(4px);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: var(--transition-base);
}

.skill-category:hover {
    border-color: var(--accent);
    box-shadow: 0 10px 40px rgba(0, 217, 255, 0.1);
}

.category-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--accent);
    margin-bottom: var(--spacing-sm);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    padding: 0.5rem 1rem;
    background: rgba(0, 217, 255, 0.05);
    border: 1px solid rgba(0, 217, 255, 0.15);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.skill-tag:hover {
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--accent);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Volunteer Section */
.volunteer {
    background: var(--secondary);
}

.volunteer-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: var(--transition-base);
}

.volunteer-card:hover {
    border-color: var(--success);
    box-shadow: 0 10px 40px rgba(0, 229, 160, 0.1);
}

.volunteer-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.volunteer-content h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.volunteer-duration {
    color: var(--success);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.volunteer-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Section */
.contact-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.contact-text {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.contact-info {
    display: grid;
    gap: 1rem;
    margin-top: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
    transition: var(--transition-base);
}

.contact-item:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

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

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

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

.footer-links a:hover {
    color: var(--accent);
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-visual {
        order: -1;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(5, 8, 22, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition-base);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .job-header {
        flex-direction: column;
    }
    
    .job-meta {
        text-align: left;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 2rem;
    }
    
    .timeline-marker {
        left: -2.4rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .volunteer-card {
        flex-direction: column;
        text-align: center;
    }
    
    .education-card {
        flex-direction: column;
        text-align: center;
    }
}