/* CSS-only mobile navigation toggle using checkbox */
.nav-toggle {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    }
    .nav-toggle:checked ~ .nav-menu {
        left: 0;
    }
    .nav-toggle:checked ~ .hamburger span:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle:checked ~ .hamburger span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .nav-toggle:checked ~ .hamburger span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
}

/* CSS animation for cursor blinking */
.cursor {
    animation: blink 1s infinite;
}

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

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}
/* ===================================
   PERSONAL PORTFOLIO WEBSITE STYLES
   Built with modern CSS techniques and animations
   =================================== */

/* CSS Custom Properties (Variables) */
:root {
    /* Color Palette - Modern Dark Theme */
    --primary-color: #00f5ff;
    --secondary-color: #ff6b35;
    --accent-color: #ffd700;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --background-primary: #0a0a0a;
    --background-secondary: #1a1a1a;
    --background-tertiary: #2a2a2a;
    --background-card: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    --gradient-dark: linear-gradient(135deg, var(--background-primary), var(--background-secondary));
    --gradient-glow: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    
    /* Shadows and Glows */
    --shadow-small: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-large: 0 15px 50px rgba(0, 0, 0, 0.5);
    --glow-primary: 0 0 20px rgba(0, 245, 255, 0.5);
    --glow-secondary: 0 0 20px rgba(255, 107, 53, 0.5);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Orbitron', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 4rem;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 50%;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index layers */
    --z-background: -1;
    --z-content: 1;
    --z-fixed: 100;
    --z-modal: 1000;
}

/* ===================================
   RESET AND BASE STYLES
   =================================== */

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

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

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

/* Remove default button and input styles */
button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
}

/* Improve image rendering */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Remove list styles */
ul, ol {
    list-style: none;
}

/* Remove link styles */
a {
    text-decoration: none;
    color: inherit;
}

/* ===================================
   ANIMATED BACKGROUND PARTICLES
   =================================== */

.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-background);
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    opacity: 0.3;
    animation: float 20s infinite linear;
}

.particle:nth-child(1) {
    left: 20%;
    animation-delay: 0s;
    animation-duration: 15s;
}

.particle:nth-child(2) {
    left: 40%;
    animation-delay: 2s;
    animation-duration: 18s;
}

.particle:nth-child(3) {
    left: 60%;
    animation-delay: 4s;
    animation-duration: 22s;
}

.particle:nth-child(4) {
    left: 80%;
    animation-delay: 6s;
    animation-duration: 20s;
}

.particle:nth-child(5) {
    left: 10%;
    animation-delay: 8s;
    animation-duration: 25s;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}

/* ===================================
   NAVIGATION STYLES - CSS ONLY
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: rgba(10, 10, 10, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    z-index: var(--z-fixed);
    transition: all var(--transition-normal);
}

.project-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.project-content {
    padding: var(--space-2xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.project-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.project-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

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

.tech-tag {
    background: var(--gradient-primary);
    color: var(--background-primary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===================================
   CONTACT SECTION STYLES
   =================================== */

.contact-section {
    background: var(--background-secondary);
    position: relative;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, var(--background-primary), transparent);
}

.contact-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--background-primary), transparent);
}

.contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
}

.contact-text h3 {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--space-md);
}

.contact-text p {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    line-height: 1.6;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--background-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.contact-item:hover {
    border-color: var(--primary-color);
    transform: translateX(10px);
    box-shadow: var(--glow-primary);
}

.contact-item i {
    font-size: var(--font-size-lg);
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

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

.social-link {
    width: 50px;
    height: 50px;
    background: var(--background-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--background-primary);
    transform: translateY(-5px);
    box-shadow: var(--glow-primary);
}

/* Contact Form Styles */
.contact-form {
    background: var(--background-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    backdrop-filter: blur(10px);
}

.form-group {
    position: relative;
    margin-bottom: var(--space-lg);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-normal);
}

.form-group input:focus,
.form-group textarea:focus {
    border-bottom-color: var(--primary-color);
}

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

.form-group input:focus + label,
.form-group input:valid + label,
.form-group textarea:focus + label,
.form-group textarea:valid + label {
    top: -10px;
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

.form-submit {
    width: 100%;
    margin-top: var(--space-lg);
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.footer {
    background: var(--background-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-2xl) 0;
    text-align: center;
}

.footer-content {
    color: var(--text-muted);
}

.footer-text p {
    margin-bottom: var(--space-xs);
}

.footer-text p:last-child {
    margin-bottom: 0;
}

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

/* Tablet Styles */
@media (max-width: 1024px) {
    :root {
        --font-size-6xl: 3rem;
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --space-3xl: 4rem;
        --space-2xl: 3rem;
        --pad: var(--space-md);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .about-content,
    .contact-content,
    .education-content {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .education-content {
        grid-template-columns: 1fr;
    }
    
    .cv-download {
        order: -1;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .interests-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --space-3xl: 3rem;
        --space-2xl: 2rem;
        --space-xl: 2rem;
        --space-lg: 1.5rem;
        --pad: var(--space-sm);
    }
    
    /* CSS-only mobile menu */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(10, 10, 10, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: var(--space-3xl);
        transition: left var(--transition-normal);
        z-index: var(--z-fixed);
    }
    
    /* Show menu when checkbox is checked */
    .nav-toggle:checked ~ .nav-menu {
        left: 0;
    }
    
    .nav-menu li {
        margin-bottom: var(--space-lg);
    }
    
    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--space-sm) var(--space-lg);
    }
    
    /* Close menu when a link is clicked */
    .nav-link:target ~ .nav-menu {
        left: -100%;
    }
    
    .hero-content {
        padding: 0 var(--space-md);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        padding: var(--space-md);
        justify-content: center;
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
    
    .container {
        padding: 0 var(--space-md);
    }
    
    .image-container {
        transform: none;
    }
    
    .image-container:hover {
        transform: scale(1.02);
    }
    
    .timeline-item {
        padding-left: var(--space-2xl);
    }
    
    .timeline-dot {
        left: 14px;
    }
    
    .education-timeline::before {
        left: 22px;
    }
    
    .interests-grid {
        grid-template-columns: 1fr;
    }
    
    .project-links {
        gap: var(--space-md);
    }
    
    .project-link {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .social-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

/* Small Mobile Styles */
@media (max-width: 480px) {
    :root {
        --font-size-6xl: 2rem;
        --font-size-5xl: 1.75rem;
        --font-size-4xl: 1.5rem;
        --space-2xl: 1.5rem;
        --space-xl: 1.5rem;
    }
    
    .hero {
        min-height: 90vh;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .project-content {
        padding: var(--space-lg);
    }
    
    .contact-form,
    .cv-card {
        padding: var(--space-lg);
    }
}

/* High Resolution Display Optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .particle {
        width: 1px;
        height: 1px;
    }
    
    .nav-link::before,
    .skill-progress::after {
        will-change: transform;
    }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .particles-container {
        display: none;
    }
    
    .scroll-indicator {
        animation: none;
    }
    
    .hero::before {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .particles-container,
    .navbar,
    .scroll-indicator,
    .hero-buttons,
    .contact-form,
    .social-links {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: var(--space-lg) 0;
    }
    
    .section {
        padding: var(--space-lg) 0;
        page-break-inside: avoid;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .section-title,
    .hero-title {
        color: black;
    }
}

/* Scrolled state can be achieved with JavaScript, but we'll keep the basic styling */
.navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
    border-bottom-color: var(--border-color);
    box-shadow: var(--shadow-medium);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo .logo-text {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: glow-pulse 2s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
    0% {
        filter: drop-shadow(0 0 5px var(--primary-color));
    }
    100% {
        filter: drop-shadow(0 0 15px var(--primary-color));
    }
}

/* Hide the checkbox */
.nav-toggle {
    display: none;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    position: relative;
    font-weight: 500;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-xs) var(--space-sm);
    transition: color var(--transition-normal);
}

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

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

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

/* CSS-only Mobile Navigation Toggle */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    z-index: var(--z-modal);
    position: relative;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
    transform-origin: center;
}

/* Hamburger animation when checked */
.nav-toggle:checked ~ .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.nav-toggle:checked ~ .hamburger span:nth-child(2) {
    opacity: 0;
}

.nav-toggle:checked ~ .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    background: var(--gradient-glow);
    opacity: 0.1;
    border-radius: var(--radius-full);
    transform: translate(-50%, -50%);
    animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.1;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.2;
    }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 var(--space-lg);
    z-index: var(--z-content);
    position: relative;
}

.hero-title {
    margin-bottom: var(--space-lg);
}

.title-line {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 300;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    animation: fade-in-up 1s ease 0.2s both;
}

.title-name {
    display: block;
    font-family: var(--font-display);
    font-size: var(--font-size-6xl);
    font-weight: 900;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fade-in-up 1s ease 0.4s both;
    text-shadow: var(--glow-primary);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    min-height: 2em;
    animation: fade-in-up 1s ease 0.6s both;
}

.typing-text {
    color: var(--primary-color);
    font-weight: 600;
}

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

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

.hero-buttons {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
    animation: fade-in-up 1s ease 0.8s both;
}

@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

.scroll-mouse {
    width: 20px;
    height: 35px;
    border: 2px solid var(--text-muted);
    border-radius: 15px;
    margin: 0 auto var(--space-xs);
    position: relative;
}

.scroll-wheel {
    width: 3px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 2s infinite;
}

@keyframes scroll-wheel {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(15px);
        opacity: 0;
    }
}

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

/* ===================================
   BUTTON STYLES
   =================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--background-primary);
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow-primary), var(--shadow-large);
}

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

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

/* ===================================
   SECTION STYLES
   =================================== */

.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: var(--font-size-4xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-3xl);
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    width: 80px;
    height: 3px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
    border-radius: var(--radius-sm);
}

/* ===================================
   ABOUT SECTION STYLES
   =================================== */

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.about-intro {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: var(--space-lg);
}

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

.image-container {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: none;
    transition: none;
}

.image-container:hover {
    transform: none;
}

.profile-img {
    width: 450px;
    height: 450px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    box-shadow: none;
    filter: none;
    transition: none;
}


.image-overlay {
    display: none;
}



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

.skills-section {
    background: var(--background-secondary);
    position: relative;
}

.skills-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, var(--background-primary), transparent);
}

.skills-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--background-primary), transparent);
}

.skills-category {
    margin-bottom: var(--space-3xl);
}

.category-title {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--space-lg);
    text-align: center;
}

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

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--background-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.skill-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--glow-primary);
}

.skill-icon {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
    width: 60px;
    text-align: center;
}

.skill-info {
    flex: 1;
}

.skill-name {
    display: block;
    font-weight: 600;
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-xs);
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--background-tertiary);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    transition: width 1.5s ease-out 0.3s;
    position: relative;
    animation: skill-load 2s ease-out 0.5s both;
}

@keyframes skill-load {
    from {
        width: 0;
    }
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

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

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

.education-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.education-timeline {
    position: relative;
}

.education-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    padding-left: var(--space-3xl);
    margin-bottom: var(--space-2xl);
}

.timeline-dot {
    position: absolute;
    left: 22px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    box-shadow: 0 0 0 4px var(--background-primary), var(--glow-primary);
}

.timeline-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.institution {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.timeline-date {
    display: inline-block;
    background: var(--gradient-secondary);
    color: var(--background-primary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-md);
}

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

.cv-download {
display: flex;
align-items: center;
justify-content: center;
margin-left: 2cm;
}

.cv-card {
    background: var(--background-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

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

.cv-icon {
    font-size: var(--font-size-5xl);
    color: var(--secondary-color);
    margin-bottom: var(--space-lg);
}

.cv-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.cv-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.cv-btn {
    background: var(--gradient-secondary) !important;
}

/* ===================================
   INTERESTS SECTION STYLES
   =================================== */

.interests-section {
    background: var(--background-secondary);
    position: relative;
}

.interests-section::before,
.interests-section::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, var(--background-primary), transparent);
}

.interests-section::before {
    top: 0;
}

.interests-section::after {
    bottom: 0;
    background: linear-gradient(to top, var(--background-primary), transparent);
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.interest-card {
    background: var(--background-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.interest-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

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

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

.interest-icon {
    font-size: var(--font-size-4xl);
    color: var(--primary-color);
    margin-bottom: var(--space-lg);
}

.interest-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.interest-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===================================
   PROJECTS SECTION STYLES
   =================================== */

.projects-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); /* Cards as boxes side by side, wrap downwards */
gap: var(--space-2xl);
align-items: stretch; /* Cards fill vertical space */
justify-items: center; /* Center cards horizontally */
}

.project-card {
display: flex;
flex-direction: column;
align-items: flex-start;
justify-content: center;
min-width: 320px;
max-width: 100%;
min-height: 350px;
height: 100%;
box-sizing: border-box;
text-align: left;
padding: var(--space-xl);
}

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

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        45deg,
        rgba(0, 245, 255, 0.8),
        rgba(255, 107, 53, 0.8)
    );
    opacity: 0;
    transition: opacity var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.project-links {
    display: flex;
    gap: var(--space-lg);
}

.project-link {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}