/* ===================================
   Portfolio Website - Design System
   Apple/DeepMind-style Scroll Animations
   =================================== */

/* CSS Custom Properties */
:root {
    /* Colors - Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    
    /* Gradient Colors */
    --gradient-purple: #8b5cf6;
    --gradient-cyan: #06b6d4;
    --gradient-pink: #ec4899;
    --gradient-blue: #3b82f6;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    
    /* Accent */
    --accent-primary: #8b5cf6;
    --accent-secondary: #06b6d4;
    
    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 32px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Utility Classes */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
}

/* Section Title */
.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-2xl);
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Navigation
   =================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: var(--transition-base);
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

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

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-purple), var(--gradient-cyan));
    transition: var(--transition-base);
}

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

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

.nav-cta {
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    color: var(--text-primary) !important;
    -webkit-text-fill-color: var(--text-primary) !important;
}

.nav-cta::after {
    display: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* ===================================
   Hero Section - Fade + Scale
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(139, 92, 246, 0.3), transparent),
        radial-gradient(ellipse 60% 40% at 80% 50%, rgba(6, 182, 212, 0.2), transparent),
        radial-gradient(ellipse 50% 30% at 20% 80%, rgba(236, 72, 153, 0.15), transparent);
}

.hero-mesh {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: meshMove 20s linear infinite;
}

@keyframes meshMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-lg);
    animation: heroFadeIn 1.2s ease-out;
}

@keyframes heroFadeIn {
    0% {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.hero-greeting {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.3s forwards;
}

.hero-name {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--gradient-purple) 50%, var(--gradient-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.5s forwards;
}

.hero-title {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    min-height: 2.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.7s forwards;
}

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

.typing-cursor {
    animation: blink 1s infinite;
}

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

.hero-tagline {
    font-size: 1rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-xl);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.9s forwards;
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.1s forwards;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    color: var(--text-primary);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: var(--glass-bg);
    border-color: var(--gradient-purple);
}

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-tertiary);
    font-size: 0.85rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 1.5s forwards;
}

.scroll-indicator {
    width: 24px;
    height: 40px;
    border: 2px solid var(--glass-border);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--gradient-purple);
    border-radius: 2px;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(12px); opacity: 0.3; }
}

/* ===================================
   About Section - Text Reveal
   =================================== */
.about {
    padding: var(--space-3xl) 0;
    position: relative;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    line-height: 1.8;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-2xl);
}

/* Text reveal animation */
.about-text .word {
    display: inline-block;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.about-text .word.revealed {
    opacity: 1;
    transform: translateY(0);
}

.about-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stat-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===================================
   Skills Section - Sticky Wheel Reveal
   =================================== */
.skills {
    min-height: 400vh; /* Extra scroll space for animation */
    position: relative;
}

.skills-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.skills-container {
    text-align: center;
    width: 100%;
    padding: 0 var(--space-lg);
}

.skills-wheel {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
    perspective: 1000px;
}

.skill-category {
    opacity: 0;
    transform: scale(0.8) rotateY(-15deg);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-category.visible {
    opacity: 1;
    transform: scale(1) rotateY(0);
}

.skill-card {
    padding: var(--space-lg);
    text-align: center;
    transition: var(--transition-base);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

.skill-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.skill-card h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
}

.skill-tag {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(6, 182, 212, 0.2));
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}

.skills-progress {
    margin-top: var(--space-xl);
}

.progress-bar {
    width: 200px;
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    margin: 0 auto;
    overflow: hidden;
}

.progress-bar::before {
    content: '';
    display: block;
    height: 100%;
    width: var(--progress, 0%);
    background: linear-gradient(90deg, var(--gradient-purple), var(--gradient-cyan));
    transition: width 0.3s ease;
}

/* ===================================
   Education Section - Horizontal Scroll
   =================================== */
.education {
    min-height: 300vh;
    position: relative;
}

.education-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl) 0;
    overflow: hidden;
}

.education .section-title {
    margin-bottom: var(--space-xl);
}

.education-track {
    overflow: hidden;
    padding: var(--space-lg) 0;
}

.education-cards {
    display: flex;
    gap: var(--space-xl);
    padding: 0 var(--space-xl);
    transition: transform 0.1s ease-out;
    will-change: transform;
}

.education-card {
    flex-shrink: 0;
    width: 400px;
    padding: var(--space-xl);
    transition: var(--transition-base);
}

.education-card:hover {
    transform: translateY(-10px);
}

.edu-year {
    display: inline-block;
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.edu-degree {
    font-family: var(--font-display);
    font-size: 1.4rem;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.edu-specialization {
    color: var(--gradient-cyan);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.edu-institution {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.edu-score {
    display: inline-flex;
    align-items: baseline;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.score-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.score-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.edu-highlights {
    list-style: none;
    margin-top: var(--space-sm);
}

.edu-highlights li {
    position: relative;
    padding-left: var(--space-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-xs);
}

.edu-highlights li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--gradient-cyan);
}

.education-progress {
    display: flex;
    justify-content: center;
    margin-top: var(--space-xl);
}

.progress-dots {
    display: flex;
    gap: var(--space-sm);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--glass-border);
    cursor: pointer;
    transition: var(--transition-base);
}

.dot.active {
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    transform: scale(1.2);
}

/* ===================================
   Projects Section - Zoom + Parallax
   =================================== */
.projects {
    padding: var(--space-3xl) 0;
    position: relative;
}

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

.project-card {
    overflow: hidden;
    opacity: 0;
    transform: scale(0.9);
    filter: blur(5px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card.visible {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(139, 92, 246, 0.2);
}

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

.project-placeholder {
    font-size: 4rem;
    opacity: 0.5;
}

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

.project-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.project-type {
    color: var(--gradient-cyan);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.project-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

.project-highlights {
    list-style: none;
    margin-bottom: var(--space-md);
}

.project-highlights li {
    position: relative;
    padding-left: var(--space-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-xs);
}

.project-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gradient-cyan);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tag {
    background: rgba(139, 92, 246, 0.15);
    color: var(--gradient-purple);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

/* ===================================
   Certifications Section - Slide In
   =================================== */
.certifications {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
}

.cert-grid {
    display: grid;
    gap: var(--space-xl);
    max-width: 800px;
    margin: 0 auto;
}

.cert-card {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-xl);
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.cert-card.visible {
    opacity: 1;
    transform: translateX(0);
}

.cert-card:nth-child(even) {
    transform: translateX(50px);
}

.cert-card:nth-child(even).visible {
    transform: translateX(0);
}

.cert-badge {
    font-size: 3rem;
    flex-shrink: 0;
}

.cert-content {
    flex: 1;
}

.cert-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.cert-issuer {
    color: var(--gradient-cyan);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.cert-date {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.cert-details {
    list-style: none;
}

.cert-details li {
    position: relative;
    padding-left: var(--space-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--space-xs);
}

.cert-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--gradient-purple);
}

/* ===================================
   Strengths Section
   =================================== */
.strengths {
    padding: var(--space-3xl) 0;
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.strength-item {
    text-align: center;
    padding: var(--space-xl);
    background: var(--glass-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.strength-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.strength-item:hover {
    transform: translateY(-5px);
    border-color: var(--gradient-purple);
}

.strength-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.strength-item h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.strength-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===================================
   Contact Section - Float Up
   =================================== */
.contact {
    padding: var(--space-3xl) 0;
    background: var(--bg-secondary);
    text-align: center;
}

.contact-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--space-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-grid {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.contact-card {
    padding: var(--space-xl) var(--space-2xl);
    text-decoration: none;
    text-align: center;
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.contact-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.contact-card:nth-child(2) {
    transition-delay: 0.1s;
}

.contact-card:nth-child(3) {
    transition-delay: 0.2s;
}

.contact-card:hover {
    transform: translateY(-10px);
    border-color: var(--gradient-purple);
}

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-sm);
}

.contact-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-location {
    color: var(--text-tertiary);
    font-size: 0.95rem;
}

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

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

.footer-tagline {
    margin-top: var(--space-xs);
    background: linear-gradient(135deg, var(--gradient-purple), var(--gradient-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition-base);
        pointer-events: none;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .skills-wheel {
        grid-template-columns: 1fr;
    }
    
    .education-card {
        width: 320px;
    }
    
    .cert-card {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-grid {
        flex-direction: column;
        align-items: center;
    }
    
    .about-stats {
        gap: var(--space-lg);
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 5rem;
    }
    
    .hero-name {
        font-size: 2.2rem;
    }
    
    .education-card {
        width: 280px;
        padding: var(--space-md);
    }
    
    .project-card {
        margin: 0 var(--space-sm);
    }
}