* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background: #0d1117;
    color: #ffffff;
    line-height: 1.6;
}

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

/* Navigation */
nav {
    background: #161b22;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.logo {
    color: #58a6ff;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
}

.menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

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

.nav-links a {
    color: #c9d1d9;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #58a6ff;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #0d1117 0%, #1a2332 100%);
    padding: 8rem 2rem 4rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero span {
    color: #58a6ff;
}

.hero h2 {
    color: #8b949e;
    font-weight: normal;
    margin-bottom: 1rem;
}

/* Cards */
.card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 1rem 0;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: #58a6ff;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    background: #238636;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    margin-top: 1rem;
    transition: background 0.3s;
}

.btn:hover {
    background: #2ea043;
}

.read-btn {
    background: #30363d;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 1rem;
}

/* Blog */
.blog-posts {
    display: grid;
    gap: 1.5rem;
    margin-top: 2rem;
}

.date {
    color: #8b949e;
    font-size: 0.9rem;
    margin: 0.5rem 0;
}

/* Projects */
.filter {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.filter-btn {
    background: #21262d;
    color: #c9d1d9;
    border: 1px solid #30363d;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
}

.filter-btn.active {
    background: #238636;
    border-color: #238636;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.project i {
    font-size: 2rem;
    color: #58a6ff;
    margin-bottom: 1rem;
}

.tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.tags span {
    background: #30363d;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
    border-top: 1px solid #30363d;
    color: #8b949e;
}

/* Responsive */
@media (max-width: 768px) {
    .menu-btn {
        display: block;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #161b22;
        flex-direction: column;
        padding: 1rem;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .cards, .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .hero {
        padding: 6rem 1rem 3rem;
    }
    
    .filter {
        justify-content: center;
    }
}