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

:root {
    /* Colors */
    --primary-cyan: #00ffff;
    --primary-magenta: #ff00ff;
    --primary-yellow: #ffff00;
    --primary-green: #00ff88;
    --background-dark: #0a0a0a;
    --background-darker: #050505;
    --background-light: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --accent-blue: #0066ff;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --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: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(0, 255, 255, 0.3);
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 9999px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, var(--background-dark) 0%, var(--background-light) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

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

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(0, 255, 255, 0.1);
    border-top: 3px solid var(--primary-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-inner {
    width: 100%;
    height: 100%;
    border: 3px solid rgba(255, 0, 255, 0.1);
    border-top: 3px solid var(--primary-magenta);
    border-radius: 50%;
    animation: spin 1.5s linear infinite reverse;
}

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

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

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-normal);
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
}

header.scrolled {
    background: rgba(0, 0, 0, 0.98);
    box-shadow: var(--shadow-lg);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-cyan);
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.logo-icon {
    font-size: var(--font-size-3xl);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-normal);
    position: relative;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
}

.nav-links a:hover {
    color: var(--primary-cyan);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
    background: rgba(0, 255, 255, 0.1);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-magenta));
    transition: width var(--transition-normal);
}

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

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-cyan);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

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

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

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

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.98);
    backdrop-filter: blur(10px);
    z-index: 999;
    transition: right var(--transition-normal);
    padding-top: 80px;
}

.mobile-menu.active {
    right: 0;
}

.mobile-nav-links {
    list-style: none;
    padding: var(--spacing-xl);
}

.mobile-nav-links li {
    margin-bottom: var(--spacing-lg);
}

.mobile-nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: var(--font-size-lg);
    font-weight: 500;
    display: block;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
}

.mobile-nav-links a:hover {
    background: rgba(0, 255, 255, 0.1);
    color: var(--primary-cyan);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: radial-gradient(circle at 50% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 50%);
    padding: var(--spacing-xxl) 0;
}

.hero-content {
    flex: 1;
    z-index: 2;
}

.hero-title {
    font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
    margin-bottom: var(--spacing-lg);
    font-weight: 700;
    line-height: 1.2;
}

.hero-title .line {
    display: block;
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-magenta), var(--primary-yellow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 3s ease-in-out infinite alternate;
}

.hero-title .line:nth-child(3) {
    animation-delay: 1s;
}

@keyframes glow {
    from { 
        filter: drop-shadow(0 0 20px rgba(0, 255, 255, 0.5));
        transform: translateY(0);
    }
    to { 
        filter: drop-shadow(0 0 30px rgba(255, 0, 255, 0.8));
        transform: translateY(-5px);
    }
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    color: var(--text-secondary);
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.floating-elements {
    position: relative;
    width: 300px;
    height: 300px;
}

.floating-element {
    position: absolute;
    font-size: var(--font-size-4xl);
    animation: float 6s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.5));
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 10%;
    right: 20%;
    animation-delay: 1.5s;
}

.floating-element:nth-child(3) {
    bottom: 30%;
    left: 10%;
    animation-delay: 3s;
}

.floating-element:nth-child(4) {
    bottom: 20%;
    right: 10%;
    animation-delay: 4.5s;
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
        opacity: 0.8; 
    }
    33% { 
        transform: translateY(-20px) rotate(120deg); 
        opacity: 1; 
    }
    66% { 
        transform: translateY(-10px) rotate(240deg); 
        opacity: 0.9; 
    }
}

/* Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-full);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
}

.cta-button.primary {
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-magenta));
    color: var(--background-dark);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.4);
}

.cta-button.secondary {
    background: transparent;
    color: var(--primary-cyan);
    border-color: var(--primary-cyan);
}

.cta-button.secondary:hover {
    background: rgba(0, 255, 255, 0.1);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.2);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-slow);
}

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

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

.section:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

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

.section-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-5xl));
    margin-bottom: var(--spacing-lg);
    color: var(--primary-cyan);
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
    font-weight: 700;
}

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

/* People Section */
.people-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.person-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.person-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-cyan), var(--primary-magenta), var(--primary-yellow));
}

.person-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto var(--spacing-lg);
    overflow: hidden;
    border: 3px solid rgba(0, 255, 255, 0.3);
    transition: all var(--transition-normal);
}

.person-avatar:hover {
    border-color: var(--primary-cyan);
    box-shadow: var(--shadow-glow);
}

.person-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.person-info {
    text-align: center;
}

.person-name {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--primary-cyan);
    font-weight: 600;
}

.person-role {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: var(--font-size-sm);
}

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

.person-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.person-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    text-decoration: none;
    font-size: var(--font-size-lg);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 255, 255, 0.3);
}

.person-social a:hover {
    background: rgba(0, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 255, 255, 0.3);
}

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

.project-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 0, 255, 0.3);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(255, 0, 255, 0.2);
    border-color: var(--primary-magenta);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-magenta), var(--primary-yellow), var(--primary-cyan));
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, rgba(255, 0, 255, 0.2), rgba(0, 255, 255, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.project-icon {
    font-size: var(--font-size-5xl);
    filter: drop-shadow(0 0 20px rgba(255, 0, 255, 0.5));
}

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

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-magenta);
    font-weight: 600;
}

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

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

.tech-tag {
    background: rgba(0, 255, 255, 0.2);
    color: var(--primary-cyan);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    border: 1px solid rgba(0, 255, 255, 0.3);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.tech-tag:hover {
    background: rgba(0, 255, 255, 0.3);
    transform: translateY(-1px);
}

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

.project-link {
    color: var(--primary-magenta);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
}

.project-link:hover {
    text-shadow: 0 0 10px rgba(255, 0, 255, 0.8);
    background: rgba(255, 0, 255, 0.1);
    border-color: rgba(255, 0, 255, 0.3);
}

.project-link.secondary {
    color: var(--text-secondary);
}

.project-link.secondary:hover {
    color: var(--primary-cyan);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.8);
    background: rgba(0, 255, 255, 0.1);
    border-color: rgba(0, 255, 255, 0.3);
}

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

.blog-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 255, 0, 0.3);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(255, 255, 0, 0.2);
    border-color: var(--primary-yellow);
}

.blog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-yellow), var(--primary-cyan), var(--primary-magenta));
}

.blog-image {
    height: 150px;
    background: linear-gradient(135deg, rgba(255, 255, 0, 0.2), rgba(0, 255, 255, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.blog-category {
    background: rgba(255, 255, 0, 0.9);
    color: var(--background-dark);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.blog-date {
    color: var(--primary-yellow);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.blog-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.4;
}

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

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.blog-link {
    color: var(--primary-yellow);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
}

.blog-link:hover {
    text-shadow: 0 0 10px rgba(255, 255, 0, 0.8);
    background: rgba(255, 255, 0, 0.1);
    border-color: rgba(255, 255, 0, 0.3);
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--background-darker), var(--background-dark));
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    border-top: 1px solid rgba(0, 255, 255, 0.2);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-cyan), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--primary-cyan);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-normal);
    line-height: 1.8;
}

.footer-section a:hover {
    color: var(--primary-cyan);
}

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

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

.footer-logo {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-cyan);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    font-size: var(--font-size-lg);
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 255, 255, 0.3);
}

.social-links a:hover {
    background: rgba(0, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 255, 255, 0.3);
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

/* Back to top button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, var(--primary-cyan), var(--primary-magenta));
    color: var(--background-dark);
    border: none;
    border-radius: 50%;
    font-size: var(--font-size-lg);
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    z-index: 100;
}

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

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.4);
}

/* Particles */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-cyan);
    border-radius: 50%;
    animation: particle-float 8s ease-in-out infinite;
}

@keyframes particle-float {
    0%, 100% { 
        transform: translateY(100vh) translateX(0) rotate(0deg); 
        opacity: 0; 
    }
    10% { 
        opacity: 1; 
    }
    90% { 
        opacity: 1; 
    }
    100% { 
        transform: translateY(-10vh) translateX(100px) rotate(360deg); 
        opacity: 0; 
    }
}

/* Scroll animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in[data-delay="0.1"] { transition-delay: 0.1s; }
.fade-in[data-delay="0.2"] { transition-delay: 0.2s; }
.fade-in[data-delay="0.3"] { transition-delay: 0.3s; }
.fade-in[data-delay="0.4"] { transition-delay: 0.4s; }

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-visual {
        margin-top: var(--spacing-xl);
    }
    
    .floating-elements {
        width: 250px;
        height: 250px;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-xxl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .people-grid,
    .projects-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .floating-elements {
        width: 200px;
        height: 200px;
    }
    
    .floating-element {
        font-size: var(--font-size-2xl);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .person-card,
    .project-card,
    .blog-card {
        padding: var(--spacing-lg);
    }
    
    .cta-button {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .particles {
        display: none;
    }
    
    .floating-element {
        animation: none;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --primary-cyan: #00ffff;
        --primary-magenta: #ff00ff;
        --primary-yellow: #ffff00;
        --text-primary: #ffffff;
        --text-secondary: #ffffff;
        --background-dark: #000000;
        --background-light: #000000;
    }
}

/* Focus styles for accessibility */
a:focus,
button:focus {
    outline: 2px solid var(--primary-cyan);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .particles,
    .floating-elements,
    .back-to-top,
    header,
    .mobile-menu {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .section {
        page-break-inside: avoid;
    }
}nth-child(2) {
    animation-delay: 0.5s;
}

.hero-title .line: