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

:root {
    /* Color Palette */
    --primary-black: #0a0a0a;
    --secondary-black: #1a1a1a;
    --accent-black: #2a2a2a;
    --primary-blue: #0066ff;
    --secondary-blue: #0044cc;
    --accent-blue: #0088ff;
    --code-green: #00ff41;
    --secondary-green: #00cc33;
    --text-white: #ffffff;
    --text-gray: #cccccc;
    --text-light-gray: #999999;
    --border-color: #333333;
    --shadow-color: rgba(0, 102, 255, 0.1);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    --border-radius: 8px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-primary);
    background-color: var(--primary-black);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* DNA Background Animation */
.dna-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    opacity: 0.08;
    will-change: transform;
}

.dna-helix {
    position: absolute;
    top: 50%;
    right: 8%;
    transform: translateY(-50%);
    width: 300px;
    height: 90vh;
    animation: rotate 25s linear infinite;
    will-change: transform;
}

.dna-strand {
    position: absolute;
    width: 6px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-blue), var(--code-green), var(--primary-blue));
    border-radius: 3px;
    box-shadow: 0 0 10px rgba(0, 102, 255, 0.3);
}

.strand-1 {
    left: 0;
    transform: rotateY(0deg) rotateZ(0deg);
}

.strand-2 {
    right: 0;
    transform: rotateY(180deg) rotateZ(0deg);
}

.dna-bases {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
}

.dna-base {
    position: absolute;
    width: 3px;
    height: 15px;
    background: var(--code-green);
    opacity: 0.7;
    animation: pulse 3s ease-in-out infinite;
    border-radius: 2px;
    box-shadow: 0 0 5px rgba(0, 255, 65, 0.5);
}

.dna-base::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1px;
    height: 100%;
    background: var(--primary-blue);
    opacity: 0.8;
}

.dna-base::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 8px;
    height: 1px;
    background: var(--code-green);
    opacity: 0.6;
}

@keyframes rotate {
    from { transform: translateY(-50%) rotateY(0deg); }
    to { transform: translateY(-50%) rotateY(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-normal);
}

.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-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--code-green);
}

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

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

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

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

.nav-link:hover {
    color: var(--code-green);
}

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

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-white);
    margin: 3px 0;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: var(--section-padding);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
    width: 100%;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.greeting {
    display: block;
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 0.5rem;
}

.name {
    display: block;
    background: linear-gradient(45deg, var(--primary-blue), var(--code-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-line {
    display: block;
    font-size: 1.8rem;
    color: var(--text-light-gray);
    font-weight: 400;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-blue), var(--accent-blue));
    color: var(--text-white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

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

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

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

.image-container {
    position: relative;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-blue);
    box-shadow: 0 0 50px var(--shadow-color);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(0, 102, 255, 0.1));
    opacity: 0;
    transition: var(--transition-normal);
}

.image-container:hover .image-overlay {
    opacity: 1;
}

.image-container:hover .profile-image {
    transform: scale(1.1);
}

/* Section Styles */
section {
    padding: var(--section-padding);
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-blue), var(--code-green));
    border-radius: 2px;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--accent-black);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--code-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light-gray);
    font-size: 0.9rem;
}

.code-window {
    background: var(--primary-black);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.window-header {
    background: var(--accent-black);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.window-controls {
    display: flex;
    gap: 0.5rem;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.close { background: #ff5f56; }
.minimize { background: #ffbd2e; }
.maximize { background: #27ca3f; }

.window-title {
    color: var(--text-light-gray);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.code-content {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
}

.code-content pre {
    margin: 0;
    white-space: pre-wrap;
}

.keyword { color: #ff79c6; }
.function { color: #50fa7b; }
.string { color: #f1fa8c; }
.comment { color: #6272a4; }
.parameter { color: #8be9fd; }
.module { color: #bd93f9; }
.method { color: #50fa7b; }
.property { color: #8be9fd; }
.variable { color: #f8f8f2; }
.number { color: #bd93f9; }

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

.skill-category {
    background: var(--secondary-black);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--code-green);
}

.skill-item {
    margin-bottom: 1.5rem;
}

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

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--accent-black);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(45deg, var(--primary-blue), var(--code-green));
    border-radius: 4px;
    transition: width 1s ease;
    width: 0;
}

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

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

.project-card {
    background: var(--primary-black);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.project-image {
    height: 200px;
    background: var(--accent-black);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder {
    font-size: 3rem;
    color: var(--primary-blue);
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.project-description {
    color: var(--text-gray);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: var(--accent-black);
    color: var(--code-green);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    border: 1px solid var(--border-color);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    color: var(--code-green);
}

/* Certificates Section */
.certificates {
    background: var(--primary-black);
}

.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.certificate-card {
    background: var(--secondary-black);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    position: relative;
}

.certificate-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.certificate-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(45deg, var(--primary-blue), var(--code-green));
}

.certificate-image {
    height: 180px;
    background: var(--accent-black);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

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

.certificate-placeholder {
    font-size: 3rem;
    color: var(--code-green);
    opacity: 0.7;
}

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

.certificate-content {
    padding: 1.5rem;
}

.certificate-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-white);
}

.certificate-issuer {
    color: var(--primary-blue);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.certificate-date {
    color: var(--text-light-gray);
    font-size: 0.8rem;
    margin-bottom: 1rem;
    font-family: var(--font-mono);
}

.certificate-description {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

.certificate-card:hover .certificate-placeholder {
    color: var(--primary-blue);
    transform: scale(1.1);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.contact-description {
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item i {
    font-size: 1.2rem;
    color: var(--code-green);
    width: 20px;
}

.contact-text {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.9rem;
    color: var(--text-light-gray);
    margin-bottom: 0.25rem;
}

.contact-value {
    color: var(--text-white);
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-value:hover {
    color: var(--code-green);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--accent-black);
    color: var(--text-white);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
}

.social-link:hover {
    background: var(--primary-blue);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

/* Contact Form */
.form {
    background: var(--secondary-black);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.contact-cta {
    text-align: center;
}

.contact-cta h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.contact-cta p {
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.contact-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-actions .btn {
    min-width: 150px;
    justify-content: center;
}

.btn-icon {
    margin-left: 0.5rem;
}

/* Footer */
.footer {
    background: var(--primary-black);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-text {
    color: var(--text-light-gray);
}

.footer-link {
    color: var(--primary-blue);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-fast);
}

.footer-link:hover {
    color: var(--code-green);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--primary-black);
        width: 100%;
        text-align: center;
        transition: var(--transition-normal);
        padding: 2rem 0;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .dna-helix {
        right: 5%;
        width: 150px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--code-green);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}