:root {
   
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --accent-primary: #667eea;
    --accent-secondary: #764ba2;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --border-color: #e2e8f0;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --nav-height: 70px;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --accent-primary: #818cf8;
    --accent-secondary: #a78bfa;
    --accent-gradient: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.4);
    --border-color: #334155;
}


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

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}


.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: 2px solid white;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 9999;
    box-shadow: 0 4px 15px var(--shadow);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

[data-theme="dark"] .theme-toggle {
    border-color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(129, 140, 248, 0.5);
}

[data-theme="dark"] .theme-toggle:hover {
    box-shadow: 0 6px 30px rgba(129, 140, 248, 0.7);
}

.language-toggle {
    position: fixed;
    top: 20px;
    right: 80px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-gradient);
    border: 2px solid white;
    color: white;
    font-size: 0.9rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 9999;
    box-shadow: 0 4px 15px var(--shadow);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.language-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

[data-theme="dark"] .language-toggle {
    border-color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(129, 140, 248, 0.5);
}

[data-theme="dark"] .language-toggle:hover {
    box-shadow: 0 6px 30px rgba(129, 140, 248, 0.7);
}

.lang-text {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}


.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
    height: var(--nav-height);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
    transition: var(--transition);
}

.nav-logo:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 20px 50px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    z-index: 10;
    position: relative;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 1rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glitch {
    position: relative;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 90%, 100% {
        transform: translate(0);
    }
    92% {
        transform: translate(-2px, 2px);
    }
    94% {
        transform: translate(2px, -2px);
    }
    96% {
        transform: translate(-2px, 2px);
    }
}

.typing-container {
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin: 1rem 0;
    min-height: 50px;
}

.typing-text {
    font-weight: 500;
}

.cursor {
    animation: blink 0.7s infinite;
    color: var(--accent-primary);
}

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

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

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

.btn-secondary:hover {
    background: var(--accent-primary);
    color: white;
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-card {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.profile-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: white;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
    overflow: hidden;
    padding: 5px;
}

.profile-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
    border: 3px solid white;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.profile-circle:hover .profile-image {
    transform: scale(1.05);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    font-size: 2rem;
    color: var(--accent-primary);
}

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


section {
    padding: 100px 20px;
    position: relative;
    z-index: 10;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-number {
    color: var(--accent-primary);
    font-family: 'Courier New', monospace;
    font-size: 1.5rem;
}


.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    z-index: 10;
}

.highlight {
    color: var(--accent-primary);
    font-weight: 600;
}

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
}

.fade-in:nth-child(2) {
    animation-delay: 0.2s;
}

.fade-in:nth-child(3) {
    animation-delay: 0.4s;
}

.fade-in:nth-child(4) {
    animation-delay: 0.6s;
}

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

.education-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-top: 2rem;
    box-shadow: 0 4px 20px var(--shadow);
    display: flex;
    gap: 1.5rem;
    align-items: center;
    transition: var(--transition);
    z-index: 10;
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-hover);
    z-index: 10;

}

.card-icon {
    font-size: 3rem;
    color: var(--accent-primary);
}

.card-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.card-content p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    z-index: 10;
}

.year {
    display: inline-block;
    background: var(--accent-gradient);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 4px 20px var(--shadow);
    transition: var(--transition);
    z-index: 10;
}

.stat-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 8px 30px var(--shadow-hover);
}

.stat-card i {
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.stat-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stat-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.experience-date {
    display: block;
    font-size: 0.85rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-top: 0.5rem;
}


.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px var(--shadow);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-hover);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-header i {
    font-size: 2rem;
    color: var(--accent-primary);
}

.category-header h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-item span {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.skill-bar {
    background: var(--bg-secondary);
    height: 8px;
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--accent-gradient);
    width: 0;
    transition: width 1s ease-out;
    border-radius: 10px;
}

.tech-icons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.tech-icon {
    aspect-ratio: 1;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--accent-primary);
    transition: var(--transition);
    cursor: pointer;
}

.tech-icon:hover {
    background: var(--accent-gradient);
    color: white;
    transform: scale(1.1) rotate(5deg);
}


.contact {
    background: var(--bg-secondary);
}

.contact-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.contact-text h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.contact-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 4px 20px var(--shadow);
}

.social-link i {
    font-size: 1.5rem;
}

.social-link.email {
    background: linear-gradient(135deg, #ea4335 0%, #e91e63 100%);
    color: white;
}

.social-link.github {
    background: linear-gradient(135deg, #333 0%, #000 100%);
    color: white;
}

.social-link.linkedin {
    background: linear-gradient(135deg, #0077b5 0%, #00a0dc 100%);
    color: white;
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-hover);
}


.footer {
    background: var(--bg-card);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.footer-subtitle {
    font-size: 0.9rem;
    color: var(--accent-primary);
}


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

.tech-particle {
    position: absolute;
    color: var(--accent-primary);
    font-weight: bold;
    opacity: 0.7;
    pointer-events: none;
    user-select: none;
    transition: color 0.3s ease, opacity 0.3s ease;
}

.tech-particle.particle-icon {
    filter: drop-shadow(0 0 5px var(--accent-primary));
}

.tech-particle.particle-shape {
    font-family: 'Courier New', monospace;
    text-shadow: 0 0 10px var(--accent-primary);
}

[data-theme="dark"] .tech-particle {
    color: var(--accent-secondary);
    opacity: 0.6;
}

[data-theme="dark"] .tech-particle.particle-icon {
    filter: drop-shadow(0 0 8px var(--accent-secondary));
}

[data-theme="dark"] .tech-particle.particle-shape {
    text-shadow: 0 0 12px var(--accent-secondary);
}

#particle-canvas {
    opacity: 0.5;
    transition: opacity 0.3s ease;
}

[data-theme="dark"] #particle-canvas {
    opacity: 0.4;
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text h1 {
        font-size: 2.5rem;
    }

    .typing-container {
        font-size: 1.2rem;
    }

    .profile-circle {
        width: 200px;
        height: 200px;
        font-size: 5rem;
    }

    .profile-image {
        border: 2px solid white;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .nav-menu {
        gap: 1rem;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .social-links {
        flex-direction: column;
        align-items: stretch;
    }

    .theme-toggle {
        width: 45px;
        height: 45px;
        font-size: 1rem;
        right: 15px;
    }

    .language-toggle {
        width: 45px;
        height: 45px;
        font-size: 0.8rem;
        right: 70px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .nav-menu {
        display: none;
    }
}