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HTML

<!DOCTYPE html>
<html lang="en" data-theme="light">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Modern Portfolio</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <link rel="stylesheet" href="styles.css">
</head>
<body>
    
    <nav class="navbar">
        <div class="container">
            <a href="#" class="logo">Portfolio</a>
            <div class="nav-links">
                <a href="#home">Home</a>
                <a href="#about">About</a>
                <a href="#projects">Projects</a>
                <a href="#blog">Blog</a>
                <a href="#contact">Contact</a>
                <button id="theme-toggle" class="theme-btn">
                    <i class="fas fa-moon"></i>
                </button>
                <button id="auth-btn" class="auth-btn">
                    <i class="fas fa-user"></i> Sign In
                </button>
            </div>
            <button class="hamburger">
                <i class="fas fa-bars"></i>
            </button>
        </div>
    </nav>

<section id="home" class="hero">
        <div class="container">
            <div class="hero-content">
                <h1 class="hero-title">Hi, I'm <span class="highlight">John Doe</span></h1>
                <h2 class="hero-subtitle">Frontend Developer & UI Designer</h2>
                <p class="hero-text">I create beautiful, responsive websites with modern technologies and user-friendly interfaces.</p>
                <div class="hero-buttons">
                    <a href="#projects" class="btn primary">View My Work</a>
                    <a href="#contact" class="btn secondary">Contact Me</a>
                </div>
            </div>
            <div class="hero-image">
                <div class="image-wrapper">
                    <img src="https://via.placeholder.com/400" alt="Profile Image" class="profile-img">
                    <div class="shape shape-1"></div>
                    <div class="shape shape-2"></div>
                </div>
            </div>
        </div>
    </section>

<section id="about" class="about">
        <div class="container">
            <h2 class="section-title">About <span class="highlight">Me</span></h2>
            <div class="about-content">
                <div class="about-image">
                    <img src="https://via.placeholder.com/300" alt="About Image">
                </div>
                <div class="about-text">
                    <h3>Who am I?</h3>
                    <p>I'm a passionate frontend developer with 5 years of experience creating modern web applications. I specialize in React, Vue.js, and responsive design.</p>
                    <div class="skills">
                        <h4>My Skills</h4>
                        <div class="skill-tags">
                            <span class="skill-tag">HTML5</span>
                            <span class="skill-tag">CSS3</span>
                            <span class="skill-tag">JavaScript</span>
                            <span class="skill-tag">React</span>
                            <span class="skill-tag">Vue.js</span>
                            <span class="skill-tag">Node.js</span>
                            <span class="skill-tag">SASS</span>
                            <span class="skill-tag">Git</span>
                        </div>
                    </div>
                    <div class="about-buttons">
                        <a href="#" class="btn primary">Download CV</a>
                        <a href="#contact" class="btn secondary">Hire Me</a>
                    </div>
                </div>
            </div>
        </div>
    </section>

<section id="projects" class="projects">
        <div class="container">
            <h2 class="section-title">My <span class="highlight">Projects</span></h2>
            <div class="projects-filter">
                <button class="filter-btn active" data-filter="all">All</button>
                <button class="filter-btn" data-filter="web">Web</button>
                <button class="filter-btn" data-filter="app">App</button>
                <button class="filter-btn" data-filter="design">Design</button>
            </div>
            <div class="projects-grid">
                
            </div>
        </div>
    </section>

<section id="blog" class="blog">
        <div class="container">
            <h2 class="section-title">My <span class="highlight">Blog</span></h2>
            <div class="blog-posts">
                
            </div>
            <div class="blog-controls">
                <button id="create-post-btn" class="btn primary" disabled>
                    <i class="fas fa-plus"></i> Create Post
                </button>
            </div>
        </div>
    </section>

<section id="contact" class="contact">
        <div class="container">
            <h2 class="section-title">Get In <span class="highlight">Touch</span></h2>
            <div class="contact-content">
                <div class="contact-info">
                    <h3>Contact Information</h3>
                    <div class="info-item">
                        <i class="fas fa-envelope"></i>
                        <span>john.doe@example.com</span>
                    </div>
                    <div class="info-item">
                        <i class="fas fa-phone"></i>
                        <span>+1 (123) 456-7890</span>
                    </div>
                    <div class="info-item">
                        <i class="fas fa-map-marker-alt"></i>
                        <span>San Francisco, CA</span>
                    </div>
                    <div class="social-links">
                        <a href="#"><i class="fab fa-github"></i></a>
                        <a href="#"><i class="fab fa-linkedin"></i></a>
                        <a href="#"><i class="fab fa-twitter"></i></a>
                        <a href="#"><i class="fab fa-instagram"></i></a>
                    </div>
                </div>
                <form class="contact-form">
                    <div class="form-group">
                        <input type="text" placeholder="Your Name" required>
                    </div>
                    <div class="form-group">
                        <input type="email" placeholder="Your Email" required>
                    </div>
                    <div class="form-group">
                        <input type="text" placeholder="Subject">
                    </div>
                    <div class="form-group">
                        <input placeholder="Your Message" rows="5" required />
                    </div>
                    <button type="submit" class="btn primary">Send Message</button>
                </form>
            </div>
        </div>
    </section>

<footer class="footer">
        <div class="container">
            <div class="footer-content">
                <div class="footer-about">
                    <h3>Portfolio</h3>
                    <p>A modern responsive portfolio template with dark/light mode and interactive features.</p>
                </div>
                <div class="footer-links">
                    <h3>Quick Links</h3>
                    <ul>
                        <li><a href="#home">Home</a></li>
                        <li><a href="#about">About</a></li>
                        <li><a href="#projects">Projects</a></li>
                        <li><a href="#blog">Blog</a></li>
                        <li><a href="#contact">Contact</a></li>
                    </ul>
                </div>
                <div class="footer-newsletter">
                    <h3>Newsletter</h3>
                    <form>
                        <input type="email" placeholder="Your Email">
                        <button type="submit" class="btn primary">Subscribe</button>
                    </form>
                </div>
            </div>
            <div class="footer-bottom">
                <p>© 2023 Portfolio. All rights reserved.</p>
                <div class="theme-switcher">
                    <button id="footer-theme-toggle" class="theme-btn small">
                        <i class="fas fa-moon"></i> Toggle Theme
                    </button>
                </div>
            </div>
        </div>
    </footer>

<div id="auth-modal" class="modal">
        <div class="modal-content">
            <span class="close-modal">×</span>
            <h2>Sign In</h2>
            <div class="auth-options">
                <button id="google-auth" class="btn social-btn google">
                    <i class="fab fa-google"></i> Continue with Google
                </button>
                <button class="btn social-btn github">
                    <i class="fab fa-github"></i> Continue with GitHub
                </button>
            </div>
            <div class="auth-form">
                <form>
                    <div class="form-group">
                        <input type="email" placeholder="Email" required>
                    </div>
                    <div class="form-group">
                        <input type="password" placeholder="Password" required>
                    </div>
                    <button type="submit" class="btn primary">Sign In</button>
                </form>
            </div>
        </div>
    </div>

<div id="create-post-modal" class="modal">
        <div class="modal-content">
            <span class="close-modal">×</span>
            <h2>Create New Post</h2>
            <form id="post-form">
                <div class="form-group">
                    <input type="text" id="post-title" placeholder="Post Title" required>
                </div>
                <div class="form-group">
                    <input id="post-content" placeholder="Post Content" rows="8" required />
                </div>
                <div class="form-group">
                    <input type="text" id="post-tags" placeholder="Tags (comma separated)">
                </div>
                <div class="form-actions">
                    <button type="submit" class="btn primary">Publish</button>
                    <button type="button" class="btn secondary cancel-post">Cancel</button>
                </div>
            </form>
        </div>
    </div>

CSS

/* Root Variables - Easily Changeable Colors */
:root {
    /* Light Theme */
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --text-color: #2b2d42;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --nav-bg: rgba(255, 255, 255, 0.9);
    --footer-bg: #2b2d42;
    --footer-text: #ffffff;
    --border-color: #e9ecef;
    --success-color: #4bb543;
    --error-color: #ff3333;
    --warning-color: #ffcc00;
    
    /* Dark Theme */
    --dark-primary-color: #4895ef;
    --dark-secondary-color: #4361ee;
    --dark-accent-color: #3f37c9;
    --dark-text-color: #f8f9fa;
    --dark-bg-color: #121212;
    --dark-card-bg: #1e1e1e;
    --dark-card-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --dark-nav-bg: rgba(30, 30, 30, 0.9);
    --dark-border-color: #333333;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: all 0.3s ease;
}

body.dark-mode {
    --primary-color: var(--dark-primary-color);
    --secondary-color: var(--dark-secondary-color);
    --accent-color: var(--dark-accent-color);
    --text-color: var(--dark-text-color);
    --bg-color: var(--dark-bg-color);
    --card-bg: var(--dark-card-bg);
    --card-shadow: var(--dark-card-shadow);
    --nav-bg: var(--dark-nav-bg);
    --border-color: var(--dark-border-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

.highlight {
    color: var(--primary-color);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn.primary {
    background-color: var(--primary-color);
    color: white;
}

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

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

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.theme-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    color: var(--primary-color);
    transform: rotate(30deg);
}

.auth-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.auth-btn:hover {
    background-color: var(--secondary-color);
}

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding-top: 100px;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-content {
    flex: 1;
    animation: fadeInLeft 1s ease;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 15px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.hero-text {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    position: relative;
    animation: fadeInRight 1s ease;
}

.image-wrapper {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.profile-img {
    width: 100%;
    border-radius: 20px;
    position: relative;
    z-index: 2;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.shape {
    position: absolute;
    border-radius: 20px;
    z-index: 1;
}

.shape-1 {
    width: 100%;
    height: 100%;
    background-color: var(--primary-color);
    top: -15px;
    left: -15px;
    opacity: 0.3;
}

.shape-2 {
    width: 80%;
    height: 80%;
    background-color: var(--accent-color);
    bottom: -15px;
    right: -15px;
    opacity: 0.3;
}

/* About Section */
.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
    animation: fadeInLeft 1s ease;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-text {
    flex: 1;
    animation: fadeInRight 1s ease;
}

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 30px;
}

.skills {
    margin-bottom: 30px;
}

.skills h4 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-tag {
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.about-buttons {
    display: flex;
    gap: 15px;
}

/* Projects Section */
.projects-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.filter-btn {
    background-color: transparent;
    color: var(--text-color);
    border: 2px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.project-info {
    padding: 20px;
}

.project-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.project-description {
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 15px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
}

.project-tag {
    background-color: var(--accent-color);
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
}

.project-links {
    display: flex;
    gap: 10px;
}

.project-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: color 0.3s ease;
}

.project-links a:hover {
    color: var(--secondary-color);
}

/* Blog Section */
.blog-posts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.blog-post {
    background-color: var(--card-bg);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

.blog-post:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.post-header {
    position: relative;
}

.post-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.post-date {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
}

.post-content {
    padding: 20px;
}

.post-title {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.post-excerpt {
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 15px;
}

.post-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.post-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.author-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.post-actions {
    display: flex;
    gap: 15px;
}

.post-action {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.post-action:hover {
    opacity: 1;
    color: var(--primary-color);
}

.blog-controls {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

/* Contact Section */
.contact-content {
    display: flex;
    gap: 50px;
}

.contact-info {
    flex: 1;
    animation: fadeInLeft 1s ease;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.info-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(67, 97, 238, 0.1);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.contact-form {
    flex: 1;
    animation: fadeInRight 1s ease;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: var(--card-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-about h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: white;
}

.footer-about p {
    opacity: 0.8;
    margin-bottom: 20px;
}

.footer-links h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: white;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--footer-text);
    opacity: 0.8;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-newsletter h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: white;
}

.footer-newsletter input {
    width: 100%;
    padding: 12px 15px;
    border: none;
    border-radius: 5px;
    margin-bottom: 10px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
}

.footer-newsletter input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.footer-newsletter .btn {
    width: 100%;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    opacity: 0.7;
    font-size: 0.9rem;
}

.theme-switcher .theme-btn.small {
    font-size: 0.9rem;
    padding: 5px 10px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--card-bg);
    border-radius: 10px;
    width: 100%;
    max-width: 500px;
    padding: 30px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transform: translateY(-20px);
    transition: transform 0.3s ease;
}

.modal.show .modal-content {
    transform: translateY(0);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-modal:hover {
    color: var(--primary-color);
}

.modal h2 {
    margin-bottom: 20px;
    text-align: center;
}

.auth-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px;
    border-radius: 5px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.social-btn.google {
    background-color: #4285F4;
    color: white;
}

.social-btn.google:hover {
    background-color: #357ae8;
}

.social-btn.github {
    background-color: #333;
    color: white;
}

.social-btn.github:hover {
    background-color: #222;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.cancel-post {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.cancel-post:hover {
    background-color: var(--border-color);
}

/* Animations */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content, .hero-image {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--nav-bg);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 40px;
        gap: 30px;
        transition: left 0.3s ease;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .hamburger {
        display: block;
    }
    
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .projects-grid, .blog-posts {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons, .about-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .btn {
        width: 100%;
    }
    
    .projects-filter {
        flex-wrap: wrap;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

JS

// Project Filtering
    const filterButtons = document.querySelectorAll('.filter-btn');
    const projectGrid = document.querySelector('.projects-grid');
    
    // Sample project data
    const projects = [
        {
            title: "E-commerce Website",
            description: "A fully responsive e-commerce platform with cart functionality and payment integration.",
            image: "https://via.placeholder.com/400x300?text=E-commerce",
            tags: ["web", "design"],
            link: "#",
            github: "#"
        },
        {
            title: "Mobile Fitness App",
            description: "A cross-platform mobile application for tracking workouts and nutrition.",
            image: "https://via.placeholder.com/400x300?text=Fitness+App",
            tags: ["app"],
            link: "#",
            github: "#"
        },
        {
            title: "Portfolio Template",
            description: "A modern portfolio template with dark/light mode and animations.",
            image: "https://via.placeholder.com/400x300?text=Portfolio",
            tags: ["web", "design"],
            link: "#",
            github: "#"
        },
        {
            title: "Task Management Tool",
            description: "A productivity app for managing tasks with drag-and-drop functionality.",
            image: "https://via.placeholder.com/400x300?text=Task+App",
            tags: ["web", "app"],
            link: "#",
            github: "#"
        },
        {
            title: "Weather Dashboard",
            description: "Real-time weather information with 5-day forecast and location detection.",
            image: "https://via.placeholder.com/400x300?text=Weather",
            tags: ["web"],
            link: "#",
            github: "#"
        },
        {
            title: "UI Design System",
            description: "A comprehensive design system with reusable components and style guide.",
            image: "https://via.placeholder.com/400x300?text=Design+System",
            tags: ["design"],
            link: "#",
            github: "#"
        }
    ];

// Render projects
    function renderProjects(filter = 'all') {
        projectGrid.innerHTML = '';
        
        const filteredProjects = filter === 'all' 
            ? projects 
            : projects.filter(project => project.tags.includes(filter));
        
        filteredProjects.forEach(project => {
            const projectCard = document.createElement('div');
            projectCard.className = 'project-card';
            projectCard.innerHTML = `
                <div class="project-image">
                    <img src="${project.image}" alt="${project.title}">
                </div>
                <div class="project-info">
                    <h3 class="project-title">${project.title}</h3>
                    <p class="project-description">${project.description}</p>
                    <div class="project-tags">
                        ${project.tags.map(tag => `<span class="project-tag">${tag}</span>`).join('')}
                    </div>
                    <div class="project-links">
                        <a href="${project.link}" target="_blank"><i class="fas fa-external-link-alt"></i> Live Demo</a>
                        <a href="${project.github}" target="_blank"><i class="fab fa-github"></i> Code</a>
                    </div>
                </div>
            `;
            projectGrid.appendChild(projectCard);
        });
    }

// Initialize projects
    renderProjects();

// Filter projects
    filterButtons.forEach(button => {
        button.addEventListener('click', () => {
            // Update active button
            filterButtons.forEach(btn => btn.classList.remove('active'));
            button.classList.add('active');
            
            // Filter projects
            const filter = button.dataset.filter;
            renderProjects(filter);
        });
    });

// Blog Posts Functionality
    const blogPostsContainer = document.querySelector('.blog-posts');
    const createPostBtn = document.getElementById('create-post-btn');
    const authBtn = document.getElementById('auth-btn');
    const authModal = document.getElementById('auth-modal');
    const createPostModal = document.getElementById('create-post-modal');
    const closeModalBtns = document.querySelectorAll('.close-modal');
    const googleAuthBtn = document.getElementById('google-auth');
    const postForm = document.getElementById('post-form');
    const cancelPostBtn = document.querySelector('.cancel-post');

// Sample blog data
    let blogPosts = [
        {
            id: 1,
            title: "Getting Started with React Hooks",
            excerpt: "Learn how to use React Hooks to simplify your functional components and manage state effectively.",
            image: "https://via.placeholder.com/600x400?text=React+Hooks",
            date: "May 15, 2023",
            author: {
                name: "John Doe",
                avatar: "https://via.placeholder.com/50?text=JD"
            },
            likes: 24,
            comments: 8,
            isLiked: false
        },
        {
            id: 2,
            title: "CSS Grid vs Flexbox",
            excerpt: "A comprehensive comparison between CSS Grid and Flexbox and when to use each one.",
            image: "https://via.placeholder.com/600x400?text=CSS+Grid+vs+Flexbox",
            date: "April 28, 2023",
            author: {
                name: "John Doe",
                avatar: "https://via.placeholder.com/50?text=JD"
            },
            likes: 42,
            comments: 15,
            isLiked: false
        },
        {
            id: 3,
            title: "Building a REST API with Node.js",
            excerpt: "Step-by-step guide to creating a robust REST API using Node.js and Express.",
            image: "https://via.placeholder.com/600x400?text=Node.js+API",
            date: "March 10, 2023",
            author: {
                name: "John Doe",
                avatar: "https://via.placeholder.com/50?text=JD"
            },
            likes: 36,
            comments: 12,
            isLiked: false
        }
    ];

// User state
    let currentUser = null;

// Render blog posts
    function renderBlogPosts() {
        blogPostsContainer.innerHTML = '';
        
        blogPosts.forEach(post => {
            const postElement = document.createElement('div');
            postElement.className = 'blog-post';
            postElement.innerHTML = `
                <div class="post-header">
                    <img src="${post.image}" alt="${post.title}" class="post-image">
                    <span class="post-date">${post.date}</span>
                </div>
                <div class="post-content">
                    <h3 class="post-title">${post.title}</h3>
                    <p class="post-excerpt">${post.excerpt}</p>
                    <div class="post-meta">
                        <div class="post-author">
                            <img src="${post.author.avatar}" alt="${post.author.name}" class="author-avatar">
                            <span class="author-name">${post.author.name}</span>
                        </div>
                        <div class="post-actions">
                            <div class="post-action like-btn" data-id="${post.id}">
                                <i class="fas fa-heart ${post.isLiked ? 'liked' : ''}"></i>
                                <span>${post.likes}</span>
                            </div>
                            <div class="post-action">
                                <i class="fas fa-comment"></i>
                                <span>${post.comments}</span>
                            </div>
                            <div class="post-action">
                                <i class="fas fa-share"></i>
                            </div>
                        </div>
                    </div>
                </div>
            `;
            blogPostsContainer.appendChild(postElement);
        });

// Add event listeners to like buttons
        document.querySelectorAll('.like-btn').forEach(btn => {
            btn.addEventListener('click', handleLike);
        });
    }

// Initialize blog posts
    renderBlogPosts();

// Handle like functionality
    function handleLike(e) {
        if (!currentUser) {
            showAuthModal();
            return;
        }

// Modal functionality
    function showAuthModal() {
        authModal.classList.add('show');
        document.body.style.overflow = 'hidden';
    }

function showCreatePostModal() {
        if (!currentUser) {
            showAuthModal();
            return;
        }
        createPostModal.classList.add('show');
        document.body.style.overflow = 'hidden';
    }

function closeModals() {
        authModal.classList.remove('show');
        createPostModal.classList.remove('show');
        document.body.style.overflow = '';
    }

// Event listeners for modals
    authBtn.addEventListener('click', showAuthModal);
    createPostBtn.addEventListener('click', showCreatePostModal);
    closeModalBtns.forEach(btn => btn.addEventListener('click', closeModals));

// Close modal when clicking outside
    window.addEventListener('click', (e) => {
        if (e.target === authModal) closeModals();
        if (e.target === createPostModal) closeModals();
    });

// Google Auth simulation
    googleAuthBtn.addEventListener('click', () => {
        // In a real app, this would use Firebase Auth or similar
        currentUser = {
            name: "John Doe",
            email: "john.doe@example.com",
            avatar: "https://via.placeholder.com/50?text=JD"
        };
        
        // Update UI
        authBtn.innerHTML = `<img src="${currentUser.avatar}" alt="${currentUser.name}" class="user-avatar"> ${currentUser.name}`;
        createPostBtn.disabled = false;
        closeModals();
        
        // Show success message
        alert(`Successfully signed in as ${currentUser.email}`);
    });

// Handle post creation
    postForm.addEventListener('submit', (e) => {
        e.preventDefault();
        
        const title = document.getElementById('post-title').value;
        const content = document.getElementById('post-content').value;
        const tags = document.getElementById('post-tags').value;
        
        const newPost = {
            id: blogPosts.length + 1,
            title,
            excerpt: content.length > 100 ? content.substring(0, 100) + '...' : content,
            image: "https://via.placeholder.com/600x400?text=New+Post",
            date: new Date().toLocaleDateString('en-US', { 
                year: 'numeric', 
                month: 'long', 
                day: 'numeric' 
            }),
            author: {
                name: currentUser.name,
                avatar: currentUser.avatar
            },
            likes: 0,
            comments: 0,
            isLiked: false
        };
        
        blogPosts.unshift(newPost);
        renderBlogPosts();
        
        // Reset form and close modal
        postForm.reset();
        closeModals();
        
        // Show success message
        alert('Post created successfully!');
    });

cancelPostBtn.addEventListener('click', closeModals);

// Animation on scroll
    function animateOnScroll() {
        const elements = document.querySelectorAll('.hero-content, .hero-image, .about-image, .about-text, .contact-info, .contact-form');
        
        elements.forEach(element => {
            const elementPosition = element.getBoundingClientRect().top;
            const screenPosition = window.innerHeight / 1.3;
            
            if (elementPosition < screenPosition) {
                element.style.animation = 'fadeInUp 1s ease forwards';
            }
        });
    }

// Initial check
    animateOnScroll();
    
    // Check on scroll
    window.addEventListener('scroll', animateOnScroll);

// Form validation
    document.querySelectorAll('form').forEach(form => {
        form.addEventListener('submit', (e) => {
            let isValid = true;
            
            form.querySelectorAll('[required]').forEach(input => {
                if (!input.value.trim()) {
                    isValid = false;
                    input.style.borderColor = 'var(--error-color)';
                    
                    setTimeout(() => {
                        input.style.borderColor = 'var(--border-color)';
                    }, 2000);
                }
            });
            
            if (!isValid) {
                e.preventDefault();
                alert('Please fill in all required fields.');
            }
        });
    });

// Initialize user state
    function checkAuthState() {
        // In a real app, this would check Firebase Auth or similar
        // For demo purposes, we'll simulate no user initially
        currentUser = null;
        createPostBtn.disabled = true;
    }

checkAuthState();
});

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