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

:root {
    /* Dark Theme Colors */
    --primary-bg: #0a0a0a;
    --secondary-bg: #111111;
    --card-bg: #1a1a1a;
    --accent-bg: #222222;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    --text-muted: #888888;
    
    /* Accent Colors */
    --primary-accent: #00f5ff;
    --secondary-accent: #ff6b6b;
    --success-accent: #4ecdc4;
    --warning-accent: #ffe66d;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #00f5ff 0%, #0080ff 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%);
    --gradient-bg: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0a0a0a 100%);
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    --border-radius: 12px;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Animations */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

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

/* Language Switcher */
.language-switcher {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    gap: 5px;
    background: var(--card-bg);
    padding: 5px;
    border-radius: 25px;
    border: 1px solid var(--accent-bg);
    backdrop-filter: blur(10px);
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.lang-btn.active,
.lang-btn:hover {
    background: var(--gradient-primary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--accent-bg);
    z-index: 999;
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
}

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

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-smooth);
}

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

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-bg);
    z-index: -2;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 107, 107, 0.1) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.hero-image {
    position: relative;
    display: inline-block;
    margin-bottom: 40px;
}

.image-glow {
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    filter: blur(20px);
    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; }
}

.profile-img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-accent);
    position: relative;
    z-index: 1;
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 10px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition-bounce);
    position: relative;
    overflow: hidden;
}

.cta-button.primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
}

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

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 245, 255, 0.3);
}

.cta-button.secondary:hover {
    background: var(--primary-accent);
    color: var(--primary-bg);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--primary-accent);
    border-bottom: 2px solid var(--primary-accent);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(45deg); }
    40% { transform: translateY(-10px) rotate(45deg); }
    60% { transform: translateY(-5px) rotate(45deg); }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    padding: var(--section-padding);
    background: var(--secondary-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.achievements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
}

.achievement-item {
    text-align: center;
    padding: 20px;
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--accent-bg);
    transition: var(--transition-smooth);
}

.achievement-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-accent);
}

.achievement-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

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

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-element {
    width: 100%;
    max-width: 400px;
}

.code-snippet {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--accent-bg);
    overflow: hidden;
    font-family: var(--font-mono);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--accent-bg);
    border-bottom: 1px solid var(--accent-bg);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.code-dots {
    display: flex;
    gap: 6px;
}

.code-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.code-dots span:nth-child(1) { background: #ff5f56; }
.code-dots span:nth-child(2) { background: #ffbd2e; }
.code-dots span:nth-child(3) { background: #27ca3f; }

.code-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.code-line {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
}

.code-line:nth-child(odd) {
    color: var(--primary-accent);
}

/* Skills Section */
.skills {
    padding: var(--section-padding);
    background: var(--primary-bg);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.skill-category {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--accent-bg);
    transition: var(--transition-smooth);
}

.skill-category:hover {
    transform: translateY(-5px);
    border-color: var(--primary-accent);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.skill-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 30px;
    color: var(--text-primary);
    text-align: center;
}

.skill-item {
    margin-bottom: 25px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.skill-info span:first-child {
    font-weight: 500;
    color: var(--text-primary);
}

.skill-percentage {
    font-weight: 600;
    color: var(--primary-accent);
    font-family: var(--font-mono);
}

.skill-bar {
    height: 8px;
    background: var(--accent-bg);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    width: 0;
    transition: width 2s ease-out;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

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

/* Projects Section */
.projects {
    padding: var(--section-padding);
    background: var(--secondary-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 60px;
}

.project-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--accent-bg);
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-accent);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

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

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-smooth);
}

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

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-link {
    color: var(--text-primary);
    text-decoration: none;
    padding: 12px 24px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition-smooth);
}

.project-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 245, 255, 0.3);
}

.project-content {
    padding: 40px 30px;
}

.project-content h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-subtitle {
    color: var(--secondary-accent);
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 30px;
    font-size: 0.95rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.tech-tag {
    background: var(--accent-bg);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--accent-bg);
    transition: var(--transition-smooth);
}

.tech-tag:hover {
    border-color: var(--primary-accent);
    color: var(--primary-accent);
}

.project-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.stat {
    text-align: center;
    padding: 15px 10px;
    background: var(--accent-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--accent-bg);
    transition: var(--transition-smooth);
}

.stat:hover {
    border-color: var(--primary-accent);
    transform: translateY(-2px);
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background: var(--primary-bg);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--card-bg);
    padding: 30px 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--accent-bg);
    transition: var(--transition-smooth);
    min-width: 400px;
}

.contact-item:hover {
    border-color: var(--primary-accent);
    transform: translateY(-3px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.contact-details h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-details a {
    color: var(--primary-accent);
    text-decoration: none;
    font-size: 1.1rem;
    transition: var(--transition-smooth);
}

.contact-details a:hover {
    color: var(--text-primary);
}

.contact-cta {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid var(--accent-bg);
    max-width: 600px;
    margin: 0 auto;
}

.contact-cta p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.7;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background: var(--secondary-bg);
    padding: 40px 0;
    border-top: 1px solid var(--accent-bg);
}

.footer-content {
    text-align: center;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: start;
        align-items: center;
        padding-top: 50px;
        gap: 30px;
        transition: var(--transition-smooth);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .achievements {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .skill-category {
        padding: 30px 20px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .project-stats {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        min-width: auto;
        width: 100%;
        max-width: 400px;
    }
    
    .contact-cta {
        padding: 30px 20px;
    }
    
    .language-switcher {
        top: 15px;
        right: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content {
        padding: 0 15px;
    }
    
    .profile-img {
        width: 150px;
        height: 150px;
    }
    
    .hero-name {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 1.2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .achievements {
        grid-template-columns: 1fr;
    }
    
    .achievement-number {
        font-size: 2rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-category {
        padding: 25px 15px;
    }
    
    .project-content {
        padding: 30px 20px;
    }
    
    .section-header {
        margin-bottom: 50px;
    }
}

/* Loading and Animation States */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

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

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary-accent);
    border-radius: 4px;
}

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

/* Selection */
::selection {
    background: var(--primary-accent);
    color: var(--primary-bg);
}

/* Focus States */
button:focus,
a:focus {
    outline: 2px solid var(--primary-accent);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .language-switcher,
    .scroll-indicator {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero-background {
        display: none;
    }
}