/* ==========================================
   ULTRA SOPHISTICATED PORTFOLIO CSS
   Advanced Glassmorphism Design System
   ========================================== */

/* CSS Variables for Ultra-Sophisticated Design */
:root {
    /* Color Palette - Cyberpunk Inspired */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    
    /* Glassmorphism Variables */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-backdrop: blur(20px);
    
    /* Dark Theme Colors */
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    
    /* Animation Variables */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --transition-bounce: all 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */

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

*::before,
*::after {
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    /* Improved text rendering */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    /* Better touch experience */
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #f0f0f0;
        --glass-border: rgba(255, 255, 255, 0.3);
    }
}

/* Focus improvements for accessibility */
*:focus {
    outline: 2px solid var(--accent-color, #4facfe);
    outline-offset: 2px;
}

/* Skip to content link for screen readers */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--accent-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 9999;
}

.skip-link:focus {
    top: 6px;
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary-gradient);
    border-radius: 10px;
}

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

/* ==========================================
   LOADING SCREEN
   ========================================== */

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease-out;
}

.loading-content {
    text-align: center;
    color: var(--text-primary);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid transparent;
    border-radius: 50%;
    margin: 0 auto 1rem;
    background: var(--primary-gradient);
    animation: spin 1s linear infinite;
}

.loading-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin: 1rem auto;
}

.loading-bar {
    height: 100%;
    background: var(--primary-gradient);
    width: 0;
    animation: loadProgress 3s ease-out forwards;
}

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

@keyframes loadProgress {
    0% { width: 0; }
    100% { width: 100%; }
}

/* ==========================================
   BACKGROUND ELEMENTS
   ========================================== */

#particle-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -2;
}

#shader-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    opacity: 0.3;
}

/* ==========================================
   GLASSMORPHISM SYSTEM
   ========================================== */

.glassmorphism {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    position: relative;
    overflow: hidden;
}

.glassmorphism::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glassmorphism:hover::before {
    opacity: 1;
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, 
        rgba(102, 126, 234, 0.1) 0%, 
        rgba(118, 75, 162, 0.1) 100%);
    overflow: hidden;
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    z-index: 2;
    position: relative;
}

.profile-photo-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.profile-photo {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(255, 255, 255, 0.2);
    transition: var(--transition-spring);
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

.profile-photo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.4));
}

.photo-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: var(--primary-gradient);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.3;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.1); opacity: 0.5; }
}

.bio {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.typing-text {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 1rem;
    display: inline-block;
}

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

.social-btn {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    transition: var(--transition-spring);
    position: relative;
    overflow: hidden;
}

.social-btn:hover {
    transform: translateY(-5px) scale(1.1);
    color: var(--text-primary);
}

.social-btn:nth-child(1):hover { background: var(--primary-gradient); }
.social-btn:nth-child(2):hover { background: var(--accent-gradient); }
.social-btn:nth-child(3):hover { background: var(--secondary-gradient); }
.social-btn:nth-child(4):hover { background: var(--success-gradient); }

/* ==========================================
   3D CANVAS
   ========================================== */

.canvas-3d {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    z-index: 1;
    opacity: 0.8;
}

/* ==========================================
   FLOATING ELEMENTS
   ========================================== */

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.floating-element {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary-gradient);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    left: 80%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

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

/* ==========================================
   MAIN CONTENT
   ========================================== */

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

.section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    position: relative;
    transition: var(--transition-smooth);
}

.section:hover {
    transform: translateY(-5px);
}

.section h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.reveal-text {
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition-smooth);
}

/* ==========================================
   ML SHOWCASE SECTION
   ========================================== */

.ml-showcase {
    background: rgba(102, 126, 234, 0.05);
}

.ml-interface {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.ml-controls {
    padding: var(--spacing-md);
}

.ml-controls h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.input-group {
    margin-bottom: var(--spacing-md);
}

.input-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-weight: 500;
}

.input-group input[type="range"] {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    outline: none;
    margin-bottom: var(--spacing-xs);
    -webkit-appearance: none;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-gradient);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.input-group select {
    width: 100%;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-primary);
}

.predict-button {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-gradient);
    border: none;
    border-radius: 15px;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-spring);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.predict-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.predict-button.loading .loading-spinner {
    display: block;
}

.predict-button .loading-spinner {
    display: none;
    width: 20px;
    height: 20px;
}

.prediction-results {
    padding: var(--spacing-md);
}

#prediction-chart {
    width: 100%;
    height: 200px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    margin-bottom: var(--spacing-md);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.metric {
    padding: var(--spacing-sm);
    text-align: center;
    transition: var(--transition-smooth);
}

.metric:hover {
    transform: scale(1.05);
}

.metric-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.metric-value {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.neural-network-3d {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.neural-network-3d h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

#neural-network-container {
    height: 400px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 20px;
}

/* ==========================================
   HERO SECTION ENHANCEMENTS
   ========================================== */

.hero-description {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.6;
    margin: var(--spacing-lg) 0;
    max-width: 600px;
}

.hero-highlights {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.highlight-item {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: 15px;
    min-width: 120px;
    transition: var(--transition-smooth);
}

.highlight-item:hover {
    transform: translateY(-5px);
}

.highlight-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.highlight-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ==========================================
   ABOUT SECTION ENHANCEMENTS
   ========================================== */

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.about-card {
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(67, 233, 123, 0.15);
}

.about-card h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.about-card p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* ==========================================
   PORTFOLIO NAVIGATION SECTION
   ========================================== */

.portfolio-nav {
    background: rgba(67, 233, 123, 0.05);
}

.section-description {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.portfolio-card {
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(67, 233, 123, 0.2);
}

.portfolio-card.featured {
    background: linear-gradient(135deg, rgba(67, 233, 123, 0.1), rgba(56, 249, 215, 0.1));
    border: 1px solid rgba(67, 233, 123, 0.3);
}

.portfolio-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.portfolio-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 600;
}

.portfolio-card p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.portfolio-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.portfolio-stats span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    display: inline-block;
}

.portfolio-features {
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.portfolio-features small {
    color: var(--text-muted);
    font-size: 0.8rem;
    line-height: 1.4;
    font-style: italic;
}

.portfolio-card.featured {
    background: linear-gradient(135deg, rgba(103, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 2px solid rgba(103, 126, 234, 0.3);
    transform: scale(1.02);
}

.featured-btn {
    background: var(--primary-gradient);
    font-weight: 600;
    box-shadow: 0 5px 15px rgba(103, 126, 234, 0.4);
}

.featured-btn:hover {
    box-shadow: 0 8px 25px rgba(103, 126, 234, 0.6);
    transform: translateY(-3px);
}

/* ==========================================
   ROADMAP PROJECTS SECTION
   ========================================== */

.roadmap-projects {
    background: linear-gradient(135deg, rgba(103, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border: 1px solid rgba(103, 126, 234, 0.2);
}

.roadmap-timeline {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.roadmap-phase {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.phase-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.phase-badge {
    background: var(--primary-gradient);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.phase-header h3 {
    color: var(--text-primary);
    margin: 0;
    flex: 1;
}

.phase-duration {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 15px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.roadmap-project {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-smooth);
    position: relative;
}

.roadmap-project:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}

.roadmap-project.priority-high {
    border-left: 4px solid #43e97b;
}

.roadmap-project.priority-medium {
    border-left: 4px solid #f093fb;
}

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

.project-header h4 {
    color: var(--text-primary);
    margin: 0;
    font-size: 1.1rem;
    flex: 1;
}

.project-impact {
    background: rgba(67, 233, 123, 0.2);
    color: #43e97b;
    padding: 4px 12px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

.roadmap-project p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.project-details {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tech-stack {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
    flex: 1;
}

.project-duration {
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 12px;
    border-radius: 10px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.roadmap-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.metric-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.metric-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.metric-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.btn-portfolio {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-gradient);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: var(--transition-smooth);
    text-align: center;
    margin-top: auto;
}

.btn-portfolio:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(67, 233, 123, 0.3);
}

/* ==========================================
   SOFT SKILLS SECTION
   ========================================== */

.soft-skills {
    background: rgba(102, 126, 234, 0.05);
}

.soft-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.soft-skill-item {
    padding: var(--spacing-lg);
    transition: var(--transition-smooth);
    text-align: left;
}

.soft-skill-item:hover {
    transform: translateY(-5px);
}

.skill-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    display: block;
}

.soft-skill-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
    font-weight: 600;
}

.soft-skill-item ul {
    list-style: none;
    padding: 0;
}

.soft-skill-item li {
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
    position: relative;
    line-height: 1.5;
}

.soft-skill-item li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

/* ==========================================
   DATA VISUALIZATIONS
   ========================================== */

.data-viz {
    background: rgba(240, 147, 251, 0.05);
}

.viz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.viz-item {
    padding: var(--spacing-md);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.viz-item:hover {
    transform: scale(1.02);
}

.viz-item h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    text-align: center;
}

.viz-item > div {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==========================================
   PUBLICATIONS & PROJECTS
   ========================================== */

.publications {
    background: rgba(79, 172, 254, 0.05);
}

.timeline-container {
    position: relative;
    padding: var(--spacing-lg) 0;
}

.timeline-container::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary-gradient);
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-item {
    display: flex;
    margin-bottom: var(--spacing-lg);
    position: relative;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: var(--primary-gradient);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.6);
}

.timeline-content {
    width: 45%;
    padding: var(--spacing-md);
    position: relative;
    transition: var(--transition-spring);
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
}

.timeline-content:hover {
    transform: scale(1.02) translateY(-5px);
}

.timeline-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
    line-height: 1.4;
}

.timeline-content .meta {
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9rem;
}

.project-image {
    width: 100%;
    height: 100px;
    border-radius: 10px;
    margin: var(--spacing-sm) 0;
    opacity: 0.8;
    transition: var(--transition-smooth);
}

.project-image:hover {
    opacity: 1;
    transform: scale(1.02);
}

.btn-project {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: var(--spacing-xs) var(--spacing-xs) 0 0;
    text-decoration: none;
    color: var(--text-primary);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-project:hover {
    transform: translateY(-2px);
    color: var(--text-primary);
}

/* ==========================================
   SKILLS SECTION
   ========================================== */

.skills-section {
    background: rgba(67, 233, 123, 0.05);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.skill-item {
    padding: var(--spacing-md);
    transition: var(--transition-smooth);
}

.skill-item:hover {
    transform: translateY(-5px);
}

.skill-label {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.skill-bar-container {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    height: 12px;
    overflow: hidden;
    position: relative;
}

.skill-bar {
    height: 100%;
    background: var(--success-gradient);
    border-radius: 10px;
    width: 0;
    transition: width 2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.skill-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    transform: translateX(-100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ==========================================
   EDUCATION SECTION
   ========================================== */

.education {
    background: rgba(118, 75, 162, 0.05);
}

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

.education-item {
    padding: var(--spacing-md);
    border-left: 4px solid transparent;
    border-image: var(--primary-gradient) 1;
    transition: var(--transition-spring);
    position: relative;
}

.education-item:hover {
    transform: translateX(10px);
    border-image: var(--secondary-gradient) 1;
}

.education-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.3rem;
}

.education-item p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ==========================================
   FOOTER
   ========================================== */

.footer {
    text-align: center;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .profile-photo-container {
        width: 150px;
        height: 150px;
    }
    
    .canvas-3d {
        display: none;
    }
    
    .ml-interface {
        grid-template-columns: 1fr;
    }
    
    .viz-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Enhanced portfolio grid responsiveness */
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .portfolio-card {
        margin-bottom: var(--spacing-md);
    }
    
    .portfolio-features {
        padding-top: var(--spacing-xs);
    }
    
    .portfolio-features small {
        font-size: 0.75rem;
        line-height: 1.3;
    }
    
    /* Better mobile navigation */
    .social-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }
    
    /* Enhanced soft skills grid */
    .soft-skills-grid {
        grid-template-columns: 1fr;
    }
    
    /* Improved about highlights */
    .about-highlights {
        grid-template-columns: 1fr;
    }
    
    /* Roadmap mobile improvements */
    .phase-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .project-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .project-details {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .roadmap-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline-container::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
        padding-left: 50px;
    }
    
    .timeline-item:nth-child(odd) {
        flex-direction: column;
    }
    
    .timeline-dot {
        left: 20px;
        transform: translateX(-50%);
    }
    
    .timeline-content {
        width: 100%;
        text-align: left;
    }
    
    .timeline-item:nth-child(odd) .timeline-content {
        text-align: left;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section {
        padding: var(--spacing-md);
    }
    
    .social-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}