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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
}

/* Navigation */
nav {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #667eea;
    text-decoration: none;
}

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

.nav-buttons a {
    padding: 0.5rem 1.5rem;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-buttons a:hover {
    background: #764ba2;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.nav-buttons a.active {
    background: #764ba2;
}

/* Content */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    min-height: calc(100vh - 200px);
}

h1 {
    color: #667eea;
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

h2 {
    color: #764ba2;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

h3 {
    color: #667eea;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
}

p {
    line-height: 1.8;
    margin-bottom: 1rem;
    color: #555;
}

.hero {
    text-align: center;
    padding: 3rem 0;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 300;
    letter-spacing: 2px;
    color: #667eea;
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    margin-top: 1rem;
}

.info-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.info-section h2 {
    margin-top: 0;
}

ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

code {
    background: #f4f4f4;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
}

pre {
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin: 1rem 0;
}

.project-meta {
    color: #888;
    font-style: italic;
    margin-bottom: 2rem;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 5px;
    margin: 1rem 0;
}

a {
    color: #667eea;
}

a:hover {
    color: #764ba2;
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-buttons {
        flex-wrap: wrap;
        justify-content: center;
    }

    .container {
        margin: 1rem;
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }
}